HomeMy WebLinkAbout20063548 Weld Caunty Planning Department
O� GREELEY OFFICE
Meurer �uN 2 s zoos
&ASSOCIATES, INC.
143 Union Boulevard � � Q �������
Suite 600 ��
Lakewood,CO 80228 _ .---- - -:�- �
303.985.3636 re� � �-� � . ... .
3°398538°°F� LETTER OF TRANSMITTAL
www.meurer.com
TO: Ms. Carol Harding, Office DATE: June 13, 2006
Manager Coordinator
COMPANY: Weld County of Colorado FROM: Sarah Levy
Clerk to the Board
ADDRESS: P.O. Box 758 CLIENT: CARMA
SUITE: PROJECT: Siegrist Construction
Company
CITY/STATE/ZIP: Greeley, Co 80631 JOB NO. 3811-DMG
Delivered via: ❑ Mail ❑ Delivery Courier ❑ Pick-Up � Federal Express
❑ 1-hour ❑ 3-hour
Transmitted for your action as indicated below:
� For Your Use ❑ As Requested
❑ For Your Approval ❑
❑ For Your Comments ❑
No. Date Copies Description
1 6/13/06 1 Response to Adequacy Review Letter from DMG
2
3
Comments:
Ms. Harding,
Here are some documenis to be filed with the Division of Minerals and Geology
reclamation permit amendment filed with the Weld County Clerk to the Board.
Please let me know if you have any questions with the addition of these new
documents you can call me at 303-985-3636. Thank youi
SIGNATURE:
r evy
Senior Engineering Assistant
.�..��nno� doo� - 3�y
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1��rracon
June 2, 2�06 Consulting Engineers&Scfentists
10625 West I-70 Frontage Road North, Suite 3
Wheat Ridge,Colorado 80033
Carma Phone 303.423.3300
Fax 303.423.3353
Highland Place 11 www.terracon.com
9110 East Nichols Avenue, Suite 180
Greenwood Village, Colorado 80112
Attn: Mr. Tyler Packard
Re: Global Slope Stability Analysis For EmbankmenUSlurry Wall Construction and
Impact Assessment for Existing Manmade Structures
Proposed St. Vrain/Bayshore Development
Carma Weld County Site
Weld County Road 28 and Weld County Road 9-1/2
Terracon Project No. 25045300
At your request, Terracon has completed global stability analysis and impact assessment for
existing structures for the proposed slurry wall construction and grading around the existing
lakes at the St. Vrain/Bayshore Development. This report is intended to supplement out
supplemental geotechnical engineering report dated November 9, 2005 (Terracon Project
No. 25045300); all previous recommendations from the previous report remain valid and
applicable.
Global Stability Analysis: Stability analyses were performed in order to determine the
global stability of the "worst case" embankment profile in various water level/drawdown
scenarios. The worst case section was determined based upon review of the most recent
grading plans and information pertaining to the expected mean water levels and high water
levels expected for a 100-yr storm event provided by Carroll and Lange, Inc. (C&L). Stream
flow velocities were also provided by C&L along the St.Vrain River channel at various
locations (during the 100-year storm event) which also contributed to the selection of the
critical section. It was determined that the southern boundary of the lake adjacent to the St.
Vrain River would present the critical section for the purposes of performing stability
analyses (corresponds to the approximate location of Boring No. 19 from the previously
referenced Supplemental Geotechnical Engineering Report). The critical section was
selected based on the maximum head differential between the water impounded by the
lakes and the St. Vrain, the narrowest width of the proposed embankment, and the
maximum stream velocity and proximity of St. Vrain River.
Utilizing GeoSlope Studio software, SlopeW, limit equilibrium stability analyses were
performed on the critical section using effective stress parameters with user selected pore
pressures. The following table presents the effective stress parameters used for the stability
Delivering Success for Clients and Employees Slnce 1965
More Than 80 Offices Natlonwide
Giobal Stability Analysis and Impact Assessment for Existing Manmade Structures Terracon
Bayshore Development —Weld County, Colorado
Terracon Project No. 25045300
analyses. The parameters were obtained/correlated from the testing performed along the
slurry wall alignment from the previously referenced geotechnical study for the project.
Table 1
Material Type Total Unit Weight Effective Friction Angle Cohesion Intercept
(P� (PS�
Overburden Silty 120 32 15
Sand
Claystone/Siltstone 110 20 250
Bedrock
Slurry Wall 95 15 25
Rip Rap 135 42 0
Water 62.4 --- ---
Three scenarios were selected for analysis. The first scenario analyzed the stability of the
upstream lake embankment (lake side) during normal water level, static conditions. The
second scenario analyzed the stability of the downstream lake embankment (St. Vrain River
side) during normal water level (static saturated conditions). The third scenario analyzed
the stability of the upstream lake embankment (lake side) during rapid lake drawdown with a
full condition of the St. Vrain River against the lake embankment on the St. Vrain side
(simulates an embankment breach during the 100-year storm event).
For the third scenario, further analysis was needed to assure that the embankment was
stable from an erosion standpoint (along the St. Vrain River side) during the 100-year storm
event. As previously outlined, stream flow velocities were provided by C&L along the St.
Vrain River channel at various locations for the 100-year storm event. Based on the
maximum velocity of the stream channel of about 7-1/2 feet per second, provided by C&L, it
was determined that the St. Vrain River side of the lake embankment will require a face
protection consisting of 12" diameter rip rap extending from the toe of the slope to the crest
of the slope. Furthermore, the slope should be constructed to a maximum slope inclination
of 2-1/2 to 1 (Horizontal: Vertical) in order to provide a stable configuration for rip rap
placement and overall global stability. Since the rip rap erosion protection will be required,
the facing was considered in the global stability analyses.
2
Global Stability Analysis and Impact Assessment for Existing Manmade Structures Terracon
Bayshore Development —Weld County, Colorado
Terracon Project No. 25045300
The following table presents the results of the global stability analyses along with the
required Factor of Safety recommended for State of Colorado jurisdictional dams. Graphical
outputs from the slope stability computer software are attached at the end of this report.
Table 2
Scenario Required Factor of Safety Actual Factor of Safety
Static Condition (Upstream) 1.5 2.039
Static Condtion � 5 1.669
(Downstream)
Rapid Drawdown (Upstream) 1.2 1.397
Impact to Existing Manmade Structures: Impact to existing manmade structures within
200 feet of the proposed lake improvements was also considered as part of this study in
accordance with comments submitted by Division of Minerals and Geology (DMG) officials.
Two existing structures and several utility crossings were identified which required
assessment per DMG. The existing structures identified were Weld County Road 9-1/2 and
also the bridge crossing the St. Vrain River on Weld County Road 9-1/2 (I-25 Frontage
Road). Based on the distance from the proposed lake improvements, it is our opinion that
these structures will not be negatively impacted by the construction of the proposed
improvements. The utility crossings will be located and protected by the slurry wall
contractor with assistance from the utility owners. Furthermore, it is our understanding that
notarized "no negative impact" letters from the utility owners will be provided separately.
Conclusions and Recommendations: As outlined above in Table 2, the critical lake
embankment section exceeds the required Factors of Safety. Therefore, is our opinion that
the proposed configurations are stable provided that material placemenUearthwork
recommendations are followed per the previously mentioned supplemental geotechnical
engineering report. As previously outlined, rip rap erosion protection will be required along
the lake embankment on the St. Vrain river side in order to provide erosion protection and
overall global stability of the lake embankment. Furthermore, flattening of the existing slope
to a maximum inclination of about 2-1/2 to 1 will be required. It is our recommendation that
a non-woven geotextile filter fabric with sufficient weight/strength to withstand rip rap
placement be installed behind the rip rap erosion protection to provide confinement of the
underlying soils and prevent loss of fine materials migrating through the rip rap during
precipitation/runoff events. Based on the visual observation of the existing natural
vegetation along portions of the existing embankment, special permitting may be required by
regulatory agencies in order to place the required rip rap in some areas. Acquiring or
assessing the need for special permitting is beyond the scope of this study.
3
Globai Stability Analysis and Impact Assessment for Existing Manmade Structures Terracon
Bayshore Development —Weld County, Colorado
Terracon Project No. 25045300
Closure: We appreciate being of service to on this phase of the project, and are prepared
to assist you during other phases as well. Please do not hesitate to contact us if you have
any questions concerning this report or any of our testing, inspection, design, and consulting
services.
Sincerely, 0��,00 Rf�jSlF
TERRACON �p;��,�E• A�y����9O
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Ra nd L. Denton II, E.I. Michael E. Anderson, P.E.
Staff Engineer Geotechnical Department Manager
Copies to: Addressee (3)
Meurer and Associates (1) via email
Attn: Ms. Jodi Villa
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JUN-22-2096 19�28 MEURER & ASS0CIRTES 39398S3800 P.03
)une 14, 2006
Ms. Deb Gomina
Environmental Protection Specialist
I)ivision of Minerals and Geology
Department of Natural Resources
1313 Sherman Street, Room 215
Denver, CO 80203
RE: DMG Permit Amendment; M-1982-015
Siegrist Construction Company
Deaz Ms. Gonima,
Kea-McGee Rocky Mouzxtain LLC is aware of Carma (Colorado), Inc.'s plans to grade and
construct a slurry wall around the existin� gravel pits north of the St. Vrain River and east of
Interstate 25. We understand that in order to do this work a Division of Minerals and Geology
permit for reclamation is required.
Tt is our understanding that the pond reclamation will have no negarive effect on ouz utility or
any significant, valuable, and permanent manmade structure located within two hundred feet of
the affected land. It is also our understanding�hat the Operator of the site, Siegrist Constxuction
Company, is ultimately liable for operations pertaining to the reclamation of the ponds, Carma
(Colorado), Inc. agrees to compensate any damages to any utality's structure, should such
damage occur.
Sincerely, _ -
�-lr'�G
N Aste
rr-McGee cky Mountain,LLC
State of �.�o�a F-.�o v �
)ss.
County o£ �eN�&rz �
r
The foregoxng instrument was acknowledged before me this (��" day of -� ti�� , 2006,
By ose h d tore..-t� as AtFnr�ry-;�•Fa�� Of ee.�r-M�G« Pw<. hle,.�*:� �G
�AA�� Notary Pu li �
: My C issio Expires 3 • � S- Zoo s
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OF CO��
1b'ppl�liMbll E14N18G�15�
JUN-22-2006 10�29 MEURER & ASS0CIRTES 3039853800 P.04
Ms. Deb Gbnima
Environmental Protection Special�st
Division of Minerals & Geology
Department of Natural Resources
June 7, 20U6
Page 2
G - �- oe
Mich el grist Date
Op ator
State of � eA-OQ —�
)ss.
County of ���5 �
The foregoing instrument was acknowledged before me this�day of�, 20.0\8,
byAllf?!a-q�7 _ 1/�,,�3'�Tas � uf CIFr..�ICiT /1A1.\S17P-G-�J�0N� •
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E7lPIRA'f��a
, � J . - .
Tyle ackard Date
Carma (Colorado), Inc
State of
)ss.
County of_,�`l�'� - � �
The foregoing instrument was acknowledged before me this day of
di✓/_ �
2006,
y �,�1 � � as.2_�r/�9f� //�/w ,� ) T.a� .
b fa, .�, a��o
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ota Public
USA A. CONNELY My Commission Expires: _, /° '��jen/ —
NOTARY PUBLIC
STATE OF CpLORADO
My Cammission Expi;es 0ct. 7_^,2Gp6
JUN-22-2006 19�29 MEURER 8 ASS0CIRTES 3039853800 P.05
June 7, 2006
Ms. Deb Gdnima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
1313 Sherman Street, Room 215
Denver, CO 80203
Re: DMG Permit Amendment; M-1982-015
Siegrist Construction Company
Dear Ms. Gonima,
Kinder Morgan is aware of Carma (Colorado), Inc.'s plans to grade and construct a alurry wall
around the existing gravel pits north of the St. Vrain River and east of Interstate 25. We
understand that in ofder to do this work a Division of Minerals and Geology permit for
reclamation is required.
It is our understanding that the pond reclamation will have no negative effect on our utility or any
significant, valuable, and permanent manmade structure located within lwo hundred feet of the
affected land. It is also our understanding that the Operator of the site, Siegrist Construction
Company, is ultimately liable for operations pertaining to the reclamation of the ponds, Carma
(Colarado), Inc. agrees to compensate any damage to any utility's strudure, should such
damage occur.
Since ,
` F �P `.�lG '� X'+ . . . � -
Name ~(1 , Date
Kinder M ��•t�.
State of /
�� )ss.
County of J � ��
0 oin instrum rft was acknowledged b f Re me this ay of °��, 20�,
b � , a �. �.
No ary ublic `
• My Commission E ir : .
JUN-22-2006 10�29 MEURER 8 RS50CIATES 3039853800 P.06
Ms. Deb Ghnima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
June 7, 2006
Page 2
� � 9 � ��
sel Siegrist �°�
rator
5tate of p
)ss.
County of �
The foregoing Instrument wae acknowledged before me this�day of
�, 2006,
A�in�u►�7 �,1 C1FC�rP�SYas PiP�S'11�7J�of, " '� Cbd L'Tldl�.C-0
bY�,s, ` n�� ��ym�—'�
`�.��E, SIE09 y�� _ ' ,
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�� =�'�d PubliC
;s,,�,°��',��m�ssion expiros: �-�a'Od�
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♦h��j��,OR C�,P\M1'4►
� TA/94r/ON OP�. .
� �nl 7/x . . • • •
7yle Peckstrd ���
Camld (Colorado), Inc
State of
)as.
County of�7i«i �
The foregoing instrument was aeknowledged before me this '9� daY of�u�r4.--, z006'
by—Ti._ �A,�A�as�� m-�9i../� //'� o�aeJZ".��
'�-«
LISA A. CONNELY Nota ubllc
NOTARY PUBLIC My Commission Explres: _ �o/a9���� —
STATE OF COLORADO
fJy C^Rf7��4.".•IC!,1=:.,.,_;rl;! n•: „nnr
TOTf� P.06
JUN-22-2006 10�28 MEURER & ASS0CIRTES 3039853B00 P.62
CONSTRUCTION MATERIALS
REGULAR (112) OPERATION
RECLAMATION PERMIT AMENDMENT
PERMIT # M-82-015
SIEGRIST PITS - DEL CAMINO PROPERTIES
PROOF OF FILING
Certificetion;
ESl�1er t-. C�¢sir/e
I,'�arai+�g, hereby certify that I filed the additional documentation required for
the Division of Minerals and Geology lincluding the response to the adequacy review
letter from the DMG, a letter response to vsrbal comments given by Deb Gomina of
the DMG on June 12, 2006 and letters from Kerr-McGee Rocky Mountain LLC and
Kinder Morgan, Inc.) for this appl' ation with the Clerk of the Weld County Board of
Commissioners Office, on �i �,e a�- , 2006.
��7��, .�' `,,,,� �/�,zc�n�
Signature Date
6/22l06
� Meurer
&ASSOCIATES, INC.
143 Union Boulevard �
Suite 600
Lakewood,CO 80228
303.985.3636*e�
303.985.3800 F�
www.meureccom
June 12, 2006
Ms. Deb Gonima
Environmental Protection Specialist
Colorado Division of Minerals and Geology
1313 Sherman Street
Room 215
Denver, CO 80203
RE: DMG Permit No. M-1982-075, AM-1
Siegrist Construction Company
Job No. 3811-DMG
Dear Deb,
This letter addresses the items in the Division of Minerals and Geology (DMG)
Adequacy Letter dated May 23, 2006. Meurer & Associates has been authorized by
Siegrist Construction Company to process an amendment of the existing DMG permit
referenced above. The amendment includes construction of a slurry wall around
existing gravel pits so that the pits can be used as a recreational amenity and storage
facility for a proposed community to be constructed by Carma (Colorado), Inc. The
community, zoned as St. Vrain Lakes in Weld County, is now called Bayshore.
The following responds to your Adequacy Review Letter, in the same order as your
comments:
1 . The maps that were included in the initial application package, as well as new
maps prepared to address the DMG's Adequacy Review comments, are
attached and include the name of the Operator, the date Prepared and the
permit boundary. They have been signed by a registered land surveyor,
professional engineer, or other qualified person. These maps include:
a. Exhibit C-1 Adjoining Surface Owners of Record Tab 1
b. Exhibit C-2 ALTA Survey Tab 1
c. Exhibit C-3 Aerial Map Tab 1
d. Exhibit E Amended Map to Terracon's Supplemental Geotechnnical
Engineering Report, Project No. 25045300, November 9,
2005. Tab 10
e. Exhibit F Lake Improvement Grading Plans (Enclosure)
G:\3811\3811-DMG Permit\DMG Adepuacy Rvw Response\3811 Response Letter DMG.doc
Ms. Deb Gonima
June 12, 2006
Page 2 of 12
2. Proof of publication of the public notice was sent to you on May 22, 2006.
This package included an Affidavit of Publication from the Longmont Daily
Times, as well as return receipts from all property owners within and adjacent
to the permit site. We have since sent notification to all utility and
oil/mineral/gas right owners. Enclosed are copies of the notification, proof ot
publication and return receipts. Tab 2
3. A list and map of all property, easement, and utility owners within 200' of the
permit area, and on the permit area is attached. Also included on this list are
oil/gas/mineral right owners. Tab 3
4. No mine benches or other disturbances in the construction of the slurry wall will
be used. In addition, no new water impoundments on the site other than the
pre-existing exposed groundwater in the lakes will be created.
5. The permit boundaries have been staked in the field by Carroll & Lange.
Attached are photos of these stakes. Tab 4
6. Attached is a letter from Mr. Mike Siegrist authorizing Meurer & Associates to
act as DMG's direct permitting contact on behalf of Mr. Siegrist. Tab 5
7. The foilowing addresses referral comments received:
a. State Engineer
Reference June 5, 2006 memorandum from Applegate Group, Inc. Tab 6
- Also inciuded�in tab 6 is the May 31, 2006 approval letter from the State of
Colorado for the Substitute Water Supply Plan.
b. Corps of Enpineers
The Operator understands that the placement of dredged or fili material, and
any excavation associated with a dredged or fill project, either temporary or
permanent, in waters of the United States requires notificatiori to the
Department of the Army Corps of Engineers.
c. Colorado Historical Society
i. Should human remains be discovered during mining activities, the
requirements under State law CRS 24-80 part 13 will be followed.
ii. Jodi Villa of Meurer & Associates spoke with Greg Wolff of the Colorado
Historical Society on June 1, 2006, at which time Mr. Wolff stated that
he would like the name of the USGS topographic map on the Exhibit B
that was submitted to the DMG. This has been added and is enclosed.
Tab 7
G:\3811\381 7-DMG Permit\DMG Adequacy Rvw Response\3811 Response Letter DMG.doc
Ms. Deb Gbnima
June 12, 2006
Page 3 of 12
d. Kinder Morgan
We are in receipt of the gas line information sent by Kinder Morgan. The
developer of the project, Carma (Coloradol, Inc: has been working with
Kinder Morgan and is aware of their existing and planned facilities.
8. Topsoil wili be stripped and stockpiled at the southeast corner of County Road
28 and future County Road 9.5, which is approximately 1/2 mile north of the
existing lakes. This is the same location that will be used to stockpile topsoil
from the grading operations related with the adjacent residential development
by Carma (Coloradol, Inc. The topsoil related to the lake reclamation will be
approximately 32,000 cubic yards of material and will generaliy occupy an area
of 200-feet by 400-feet and 10-feet high.
9. Existing riparian vegetation that is native to Weld County, such as the few
mature cottonwood trees and sandbar willow, will be left in place where
possible. Much of the lakeshore will be regraded. Disturbed areas will be
seeded, and trees and shrubs planted. Lake edge species will be either native
to Weld County or compatible with the native plants. Limited areas of mown
turf and unplanted beach are planned.
The native soil consists predominantly of sands and gravels with varying
amounts of clay, silt, gravel, and cobbles. Fertilizer will not be used in the
native revegetation areas around the lakes. However, a limited amount of
fertilizer may be used in the minor areas of mowrt turf if it is warranted
according to a soil analysis.
Seeded areas will mulched using either a hydromulch mix or hay. If a
hydromulch mix is used, it will be applied separately following seed
application. Wood fibers will be mixed into a water slurry and color
will be added to assist operators in applying an even cover during
spraying. An organic tackifier such as guar gum may be added to the
slurry to enhance the durability of the applied muich cover. The
hydromulch will be applied at a rate of approximately 1,500 to 3,000
pounds per acre. If hay is used, it must be certified weed-free by the
Colorado Department of Agriculture, Division of Plant Industry, and a
longer average unbroken stem length will be preferred. Hay may be
crimped into the soil surface by using a modified disc plow to jam the
hay stems into the soil. Hay may be applied at the rate of 3,000 to
4,000 pounds per acre.
G:\3811\3611-DMG Permit\DMG Adequacy Rvw Response\3811 Response Letter DMG.doc
Ms. Deb Gonima
June 12, 2006
Page 4 of 12
The following seed mixes are planned for instaliation around the lakes:
OVERFLOW ECOLOGICAL MIX
For use along shoreline and in areas subject to floodin
Common Name Variety PLS/Acre % in Rate (PLS
mix Ib/ac)
Western wheat rass Arriba or Barton 16.0 40 6.4
Switch rass Grenville or Nebraska 28 4.0 20 0.8
Blue rama Hahita or Lovin ton 3.0 10 0.3
Alkali sacaton Salado 1 .5 10 0.15
Sideoats rama Vau hn or Butte 9.0 10 0.9
Little biuestem Pastura, Cimmarron 7.0 10 0.7
100% 9.25
PLAINS MIX
For use in hi her areas not subject to floodin
Common Name Variety PLS/Acre % in Rate (PLS
mix Ib/ac)
Western wheat rass Arriba or Barton 16.0 40 6.4
Blue rama Hahita or Lovin ton 3.0 20 0.6
Prairie sandreed Goshen 6.5 20 0.13
Sideoats rama Vau hn or Butte 9.0 10 0.9
Little bluestem Pastura, Cimmarron 7.0 10 0.7
. 100% 8J3
10. Attached is an existing vegetation description that was obtained by the Natural
Resources Conservation Service. Tab 8
11 .Borrow for (fine materials) for slurry wall construction will be obtained from the
vicinity of Boring from the Siegriest property as needed to maintain the required
amount of fines for the soil bentonite backfill mixture based on the mix design
determined prior to construction. Geo-Con has indicated an import of
approximately 4,400 cy from the vicinity of Boring No.'s 36 and 37 (Terracon
Preliminary Geotechnical Engineering Report, Project No. 250451221, to
supplement to slurry wall backfill materials. No foreign contaminants were
noted during the preliminary geotechnical investigation for the Siegrist property.
12.The existing concrete stockpiles on the site will be recycled and reused as
structural material in the islands that are proposed in the ponds.
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13.The existing asphalt road at the south edge of the ponds will be demolished and
stockpiled by the slurry wall contractor, and legally disposed of.
14.The "Lake Improvement Grading Plans" have been revised such that the
swimming area grade is 5h:1 v or flatter. These plans are enclosed with this
letter.
15.The existing permitted area for the Siegrist Construction Company permit M-
1982-015 is 169.6 acres. The amended application increases the area to
208.5 acres, as shown on the attached map entitled, "Lake Reclamation
Exhibit" Tab 14. This exhibit also indicates the location and sizes of the
temporary sediment ponds. Their exact configurations are shown on the
enclosed "Lake Improvement Grading Plans".
Also included is a revised Construction Materials Regula� (1121 Operation
Reclamation PermrtApplication, Page 1, which reflects the acreages of the
existing and proposed permits. Tab 9
16.The map provided in Terracon's reports was prepared in a very preliminary
stage of planning for the development. Their map has been revised and is
� attached to this response letter. Tab 10
17. Refere�ce June 5, 2006 memorandum from Applegate Group, Inc. Tab 6
18. Reference June 5, 2006 memorandum�from Appiegate Group, Inc. Tab 6
19.The average depth (height) of the slurry wall is estimated to be on the order of
about 24 feet. This is based on the finai grading plans with an average top of
wall elevation (including cap) of about 4824 to 4825 and an average key
elevation of about 4807. The wall height varies along alignment depending on
the depth of anticipated keylbedrock depth) and approaches maximum depths
of up to about 35 feet. It should be noted that the borings performed along the
alignment were not aiways drilled at the proposed final grade but at existing
grade.
20.Excessively coarse materiais will be supplemented with clayey borrow from the
Siegriest property as needed to maintain the required amount of fines for the
soil bentonite backfill mixture based on the mix design determined prior to
construction. The effects of the high water table will not impact the
construction of the slurry wall due to the slurry trenching method. (The
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bentonite slurry will displace shallow water in order to keep the trench open.
These conditions are typical in the construction of slurry wallsl.
21 .Both existing and proposed utilities will penetrate the slurry wall at various
locations and depths.
Existing utilities will be sleeved in a steel pipe that will be anchored
approximately 4 to 5 feet into the ground on each side of the slurry wall. The
steel sleeve will be packed with dry bentonite.
Proposed utilities will not be sleeved. The following is their construction
sequence:
a. Lower the work platform elevation at the installation locations to the
invert elevation of the pipes.
b. Instali the slurry wall to the required key-in depth from the lowered work
pad using soil-cement-bentonite backfill.
c. Place pipes at the proper grade with the assistance of a surveyor.
d. Place backfill over the pipes, leaving the pipe exposed in an
approximately 3-foot section at the alignment of the slurry wall.
e. Place soii-cement-bentonite backfill a minimum of four feet thick around
the pipe at the slurry wall alignment.
f. Place the remainder of the backfili over the soil-cement-bentonite and
pipes to the work platform elevation.
g. Install the remainder of the slurry wall by tying into the previously placed .
sections around the pipes.
22.The following table summarizes the noxious weed species currently existing on
the site and proposed treatment for control or eradication. Chemical treatment
wiil be performed by a qualified contractor. The contractor will be asked to
comply with all applicable laws, to avoid damaging the existing cottonwood
trees and sandbar willow beyond the grading limits, and to avoid damaging lake
and river water quality. Specific herbicide recommendations for each species
can be found on the Weld County web site and will be determined in
conjunction with the contractor. Following initial weed treatment, the area will
be seeded with grass as per seed mixes in this submittal.
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Weed Control Plan
� SCIENTIFIC COMMON MECHANICAL CHEMICAL � �
NAME NAME & CONTROL CONTHOL
VARIETY
Centaurea Diffuse Mow the above-ground portion Follow with an herbicide
diffusa knapweed of the plant during this growing treatment, and then
season. establishment af desirable
grasses, as per Weld
Count fact sheets.
Centaurea Russian Cut Imow) the plants during Apply herbicides per Weld
(Acroptilon) knapweed this growing season. County fact sheets.
repens
Tamarix Saltcedar or Cut to within 2 inches of the After cutting the plant
ramosissima tamarisk ground and immediately follow down, immediately follow
with herbicide application with herbicide application,
during this growing season. per Weld County fact
sheets.
Carduus Musk Thistle Mow or chop during this Apply herbicides per Weld
nutans towin season. Count factsheets.
Cirsium Canada Mow repeatedly throughout Combine mowing with
arvense Thistle this growing season. herbicide application
. according to Weld County
fact sheets.
Onopordum Scotch Cut (mowl the root below the Combine mowing with
acanthium Thistle soil surface during ihis growing herbicide application
season. The cut plants sha�l be according to Weld County
disposed of properly to avoid fact sheets.
ihe seeds maturing and �
becomin viable.
- - Elaeagnus Russian Olive Cut the trees down to the � Immediately treat cut " � -
angustifolia ground. stumps with herbicide to
prevent sprouting from the
roots, as per Weld County
fact sheets.
23.Carma (Colorado) Inc. wiil bond 100% of the slurry wall.
24.Permits are required and will be obtained for both the Air Pollutant Emission
Notice (APEN) and Stormwater Discharges associated with Construction
Activity. Both of these permits are obtained through the Colorado Department
of Public Health and Environment ICDPHEI. Attached is a revised Exhibit M.
Tab 11
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Ms. Deb Gbnima
June 12, 2006
Page 8 of 12
25.Attached are notarized letters from owners of the gas/oil lines in the permit area
acknowledging ihe reclamation of the ponds, and stating that Carma
(Coloradol, Inc. will be responsibie for damage to their lines, shouid it occur.
No relocations of gas lines will occur due to the improvements to the ponds.
Tab 12
26.Attached are copies of letters that will be signed by utility owners in the permit
area acknowledging the reclamation of the ponds, and stating that Carma
(Coloradol, Inc. will be responsible for damage to their utilities, should it occur.
We will forward the signed copies to you very shortly. Tab 12
27.See Terracon Report dated June 2, 2006 which addresses global stability and
impact assessment for existing manmade structures. Enclosed
The following addresses comments made by Tom Schreiner of the DMG in his May 22,
2006 letter to you and Cari Mount:
1 . Enclosed with this letter is a revised copy of the "Stormwater Management
Plan" depicting the location of the proposed slurry wall and all pertinent
hydraulic structures as well as various BMP's.
2. No streams (other than St. Vrain Creek), registered wells, springs, seeps,
irrigation canals or drainage channels exist on the permitted site. Wetlands or
wood riparian vegetation within the existing permit area and surrounding area �
are shown on the "Lake Reclamation ExhibiY'. Tab 14
3. Enclosed with this letter is a 24" x 36" set of the "Lake Improvement Grading
Plans".
4. The "Lake Reciamation Exhibit" shows a revised slurry wall alignment. This
plan also shows the setback distances of the wall from the permit boundaries
and the top of the St. Vrain Creek north bank. Tab14
5. Geo-Con (slurry wall contractor/designer) has indicated that the very hard,
fractured sandstone materials in question can be penetrated with the equipment
that they will be using. The approach will be to excavate through these
materials into competent key (i.e. claystonel. Based on the adjacent borings,
claystone should be interbedded or located below the fractured Iayer. In the
event it is not, the fractures will be grouted as needed to prevent leakage. A
competent owner's representative (geotechnical engineer or equivalent
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June 12, 2006
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experience) wili be on-site during excavation of the slurry wall to determine
when adequate key materials have been penetrated. Daily logs of the slurry
wall excavation along with representative samples of the bedrock key material
will be prepared/collected for review by the project engineer.
6. Reference June 5, 2006 memorandum from Applegate Group, Inc. Tab 6
7. The sheetpile walls have been removed from the proposed design. See
Terracon letter dated June 2, 2006 which is an addendum to the Supplemental
Geotechnical Engineering Report dated November 9, 2005. The letter includes
a revised exhibit showing the revised approximate slurry wall alignment. Tab 10
8. The rip rap protection for the lake embankment (St. Vrain river side) was
designed for the 100-year storm event. See Terracon Report dated June 2,
2006 that addresses global stability and impact assessment for existing
manmade structures. Enclosed
9. The velocity and volume of 100-year flow within the lake area is approximately
1 feet per second (fps) and 730 cubic feet per second (cfsl, respectively. The
100-year flood elevation varies along the reach of the St. Vrain River. We have
included a copy of the Conditional Letter of Map Revision (CLOMR) that has
been reviewed by Weld County and is currently under consideration by the
Federal Emergency Management Agency (FEMAI. The CLOMR includes the
base flood elevations along the adjacent St. Vrain River, as well as within the.
lake area. Please refer to the Applegate Memo dated June 5, 2006 and
Terracon Stability Assessment dated June 2, 2006 for groundwater and
stability related responses as provided.
10.The "bankfuil" condition (i.e. the maximum flow within the St. Vrain River, prior
- to overtopping into the adjacent lakes) occurs near the 50-year storm event as
slight overtopping occurs during the 50-year event. The 10-year and 50-year
river flows are 5,950 cfs and 12,890 cfs, respectively. Since the overtopping
occurs and a condition slightly less than a 50-year event, it can be estimated
that the "bankfull" rate is approximately 10,000 cfs. Please refer to the
Applegate Memo dated June 5, 2006 and Terracon Stability Assessment dated
June 2, 2006 for groundwater and stability related responses as provided.
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June 12, 2006
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1 1 .The proposed spillways have been located and provided at the historic
overtopping locations that currently exist along the lake/river embankment. The
spillways were modeled as a lateral wier condition within the HEC-RAS
hydraulic model contained within the CLOMR. Three inflow spillways allow a
total inflow of approximately 730 cfs. This flow is routed within the lakes,
where it re-enters the river channel at the outfiow spillway. The outflow
spillway is located at the easterly end of the large lake. Please refer to the
enclosed CLOMR study for detailed hydraulic information related to flood events
along the St. Vrain River and lake edge.
12.A structural analysis for minimum width of soils between slurry wall and river is
included in Terracon's "Global Slope Stability Analysis for Embankment/Slurry
Wall Construction and Impact Assessment for Existing Manmade Structures".
Enclosed
13.Reference June 5, 2006 memorandum from Applegate Group, Inc. Tab 6
14.Reference June 5, 2006 memorandum from Applegate Group, Inc. Tab 6
15.Reference June 5, 2006 memorandum from Applegate Group, Inc. Tab 6
16.Cross Sections of the ponds are included in this response. Tab 13
17.Reference June 5, 2006 memorandum from Applegate Group, Inc. Tab 6
18.The rip rap protectton for the lake embankment (St. Vrain river side) was
designed for the 100-year storm event. See Terracon Report dated June 2,
2006 that addresses global stability and impact assessment for existing
manmade structures. We have provided a proposed condition map from the
CLOMR study that includes the floodway, 100-floodplain and elevations, and
siurry wall location. Enclosed
19.A revised opinion of probable cost for the pond reclamation is attached. The
total opinion of cost for the reclamation of the ponds is $2,167,022. Tab 15
20.Carma is working with ERO Resources to delineate wetlands and jurisdictional
waters along the St. Vrain Creek. Efforts will be taken so that wetlands are not
disturbed and that no construction will take place below the creek's high water
line. Coordination efforts will take place with the Army Corps of Engineers.
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June 12, 2006
Page 11 of 12
21.Reference June 5, 2006 memorandum from Applegate Group, Inc. Tab 6
22.A CLOMR has been reviewed and accepted by Weld County and is currently
being reviewed/considered by FEMA. We anticipate receiving the Conditional
Letter of Map Revision in mid August.
We are not requesting any extension to the June 27, 2006 permit decision by the
DMG. We look forward to answering any questions you have regarding this letter or
other issues related to the permit amendment.
Sincerely,
MEURER & ASSOCIATES, INC.
��
Jod' illa, P.E.
Pr ect Manager
Enclosures
cc: Mike Siegrist
Tyler Packard/Brad Davis (without enclosuresl
Fred Tafoya, Carroll & Lange (without enclosures)
Don Frick, Applegate (without enclosures)
Levi Denton, Terracon (without enclosures)
Scott Pessin, DTJ (without enclosures)
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June 12, 2006
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List of Attachments
Tab 1 Adjoining Surface Owners of Record
ALTA Survey
Aerial Map
Tab 2 Proof of Publications
Tab 3 List and Map of Property, Easement and Utility Owners within 200'
Tab 4 Photos of Permit Boundaries
Tab 5 Letter of Authorization from Siegrist Construction Company
Tab 6 June 5, 2006 Memorandum from Applegate Group, Inc. and
Substitute Water Supply Plan
Tab 7 USGS Topographic Map
Tab 8 Permit Area Vegetation Map and Descriptions
Tab 9 Revised Reclamation Permit Application Form
Tab 10 Amended Terracon Exhibit
Tab 1 1 List of Required Permits for Project Area (Revised Exhibit M)
Tab 12 Gas/Oil Company and Utility Owner Letterls)
Tab 7 3 . Lake Cross Sections
Tab 14 Lake Reclamation Exhibit
Tab 15 Lake Grading Engineer's Opinion Cost Estimate for DMG Permit
List of Enclosures
Lake Improvement Grading Plans
Conditional Letter of Map Revision
Stormwater Management Plan
Global Slope Stability Analysis for Embankment/Slurry Wall Construction and Impact
Assessment for Existing Manmade Structures
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AFFII�AVIT OF PUBLIc.�ATION
D�LYT�s-CALL
State of Colorado p krrc
Coanry of Boulder � a ` �;
I, the undersigned agen[, do solemnly swear that the ��+
LONGMONT DAILY TIMES-CALL is a daily newspaper printed,in
whole or in part, and published in the City of Longmont, County of
Boulder,Statepf Colorado,and which has general cirwlation therein
and in parts of Boulder and Weld counties; that said newspaper has
been continuously and uninterruptedly published for a period of more � �'`
than six months nezt prior to the first publication of the armexed legal
notice of advertisement,that said newspaper has been admitted to the
United States mails as second-class matter under the provisions of
the Act of March 3, 1879, or any, amendments [hereof, and[hat said
newspaper is a daily newspaper duly qualified for publishing legal '�
notices and advertisements within the meaning of the laws of the State
of Colorado; tha[a copy of each number of said newspaper,in which
said notice of advertisement was published, was transmitted by mail
or cazrier to each of the subscribers of said newspaper, according to
the accustomed mode of business in this office.
That the annexed legal notiee or advertisement was published in
ihe regulaz and entire edition of said daily newspaper once each week
on the same day of each week for the period of 4 a9�D�tte67G
insertions;and that the first publication of said notice was in the issue
of said newspaper dated April 6 � 2006 �and that _
the last pubiicationof said nodce was in Uie issue of said newspaper
dated Apri[27,2006.
'
I� Y � � �
- Agent
Subscribed and sworn to be before this 27�
day of April, 2006.
Notary Public
�E� 121.44
2�'tPRY PUB� MY COMMISSION DCPIfiE3
JUDY /� ��Efl 4.Z008
� LAMMEfl5 .a �7 RIDEH HIDGE DR. ,_,,.. .
Q LONGMONT �:,
� p�F pF�Q�,�Q COLORADO 80501 �'�":
. ■ Complete Items 1,2,end 3.Also complete ���
. item 4 if Restricted Delivery Is desired. , �a,ge
■ Printyournameand addressonthe reverse X � Adc
� so that we can retum the card to you. B. Received by( nr ed Name) C. te o ❑
� Attachthis card to the back of the mailpiece,
or on tha front If space pertnits.
� � D. Is delivery addiess diRerent hom ilem es
.� 1. Article Addressed to: If YES,enter delivery eddress 6elow: ❑No�
� (1p�'�G� �, �!- K0.�-►'�✓'yv� Nam6�
��A� Wcc2 a8
' �� J dSOy
� mon-� cr� g � �ry��TY�
( ...�Certified Mail ❑Fxpress Mall
'� - ❑ Registered �Retum Receipt for Me'che
i � ❑Ins�te2lMail ❑C.O.D.
� 4. PesMcted Deliveryt(Extra Fee) ❑Yes
2:.Artfcle Number �
rn���,,,s��o �7�S /(�o�-O /�5Q'��o ��186 �
. ,� PS Form 3811,February 2004 �omestic Retum Receipt rozsssoza
■ Completa items i,2,and 3.Also complete Ignature ���jjj
item 4 if Restricted Delivery Is desired. ���/�� �—O/+ee
■ Pdnt your name and address on the reverse � Z Add
so that we can retum the card to you. B. ReceNed by(Ponted Name) C. ta t C
■ Attach this card to ihe back of ihe mailpiece, �
or on the front If space pertnits.
. . �D. Is delivery flddress different hom kem 17 es
1. Article Addressed ta� � If YES,enter delivery address below: ❑ No
� rna-1�lov�'o �r Fr� �sCo �
n�
� � 6"Ja . C—, f / o' - f � ` 3. SeN��eTYP�
LO�/1�a�1/� /t�-- gQ��-f �Certified Mall Exp25s Meil
Y �W� � W / � ❑ftegisteted �Retum ReceiptforMerclu
� ❑Insured Meil ❑C.O.D.
� 4. Restncted�eliveryt(Eatra Fee) ❑yys
2. Article Number �y•� p� \ Z C/ '�y/� p,,�-y
. � (l7snskrhomservicelabe9 ��"� /0 �U �J �JYa � /1Y�7�P
Ps Form 3811,FebNaty 2004 Domesllc Retum Fecelpt �ozsas-oz�
, . , � ' . . . . I �
- ■ Complete ftems 1,2,and 3.Also complete A Siqnacur�,'
Item 4 H ResMcted Delivery Is desired. ❑nger
� ■ Print your nam9�and address on tha rsverse X ❑Aadr
so th2t we cetl retum the-cefd to you. g, Recaived by(Pnnfid Mertre) C. e of
� ■ Attech this card to the back of the mailpleca, 5 ���
6r on the front if space pertnits.
0. Is delivery add2ss different irom ttem 17� Yes
1. Artide Addressed to: If YES,enter delivery eddress helow: ❑No
�,,�►1,� �. �- Sha�'or� Pe�
�7aS c�c� �y �y
c.m��►����-� Co ��y
a. sem�ry�e
� � }YJ Certifletl Mall ❑E�ress Mell
� �Registered .(�Retum Fecelpt for Me�cha
' � ❑Insured Mall ❑C.O.D.
. 4. ResMctetl Delivery?(Fxtra Fee) ❑Yes
� . . 2: Artide Numbec �
(r�sr�sterhnmsemce�ane4 700$ 1820 0003 5486 8070
� . . � . . .� _ � . � i PS Form 3811,Pabruary 2004� � - DomesticAetum necelptr ;���. � . �+ozsssoz�
i
� � � � • • � � • .
■ Complete kems 1,2,and 3.Also complete A SI
kem 4 if Restrlctad Delivery is desired. ��e"
- ■ PriM your name And address on tha reverse X ❑Ad r
� so ihat we can retum the card to you. � � 8. aeceived by(PrinredlJame) C. o � e
■ Attach thls card to the back of the mailplece, ' FAH(r .
or on the fmnt if space pemtks. � - �
D. Isdelive�yaddressdiffereMhomNem7 es
, 1. Arlicle Addressed to: If YES,enter delivery eddress below: No
UQ�(�Q, �a�1'li-`�-''`'`�`�J�',
��a� GaqI�R-- /��^� -^7�IRC�
��./�� 'lA '� [v IU UVJI� 3. Serv�eType . .
��� � / ,�I Certlfied Mail ❑Fxpres3 Mall
❑Repistered �Retum Recelpt for Mercha
❑InsUredMeil ❑C.O.D.
4. Restricted Delivery!(Extra Fee) CI Yes
2:.Ar[icle Number '
(rransrer�inma+erv�ce�ad ,.7005 1820 �0�3 5486 8063
PS Fortn 3811,Febtuary 2004 Domestic Return Recelpt � � � � mzsss-0za
■ Complete Items 1,2,end 3.Also complete a Signat e
� kem 4 if Restdcted Dellvery is desired. ❑ngem
■ Print your name�and address on the reverse X ❑Addre
so that we can return th0 cald to you. B. Recelved by(Pdnred Nam te of oel
■ Attach this card to the back of the mailpiece,
or on the front if space permits.
D. Is delivery address different from kem 11 ❑Yes
1. Article Addressed to: If YES,enter delivery address below: ❑ No
• p.��-� �. -r Mc�� �� �1
� i aqS w�ld C'p. �d- t��'l'�
���✓�'���, C'° �ds°`�
3. ServiceType .
�,],Certifed Mall ❑Exptass Mall
❑ Registered Retum Receipt for Merchan
❑Insured Mail ❑ .O.D.
4. Restncted Delivery7(Ezf2 Fee) ❑Yes
2. MiGe Numbec I
(rransfernom serwce�abeq 7�0 5 18 2 0 0 0 Q 3 5 4 8 6 80 4 9
. � PS Portn 3811,February 2004 � Domestic Retum ReaP�lpt� :�ozeesoz-rn�
� � . . . .
� ■ Complete ttems 1,2,end 3..AIso complete A��9nature� ^
kem 4 if Restricted Delivery is desi�ed. k'-�TVV'1�1����'j��aeent
� ■ Print your name and address on tha reverse X���� N ❑Addres
so ihat we can retum the card to you. B. Receiv by Pnn Name) C. Date ofppp���liv
�� ■ Attach this card to the back of the meliplece, y_ (/
or on the front if space pertnits, �
D. Is delivery edd�css diffeiaM hom i[em 1? CJ Yes
1. fvticleAdd'cssed[o: ItYES,entertleliveryaddressbelow: ��No
. ,J `„' ./'�'� `" ' .
C�d �" � �a�t� .
3s a g �� �� a�` 3, rvice Type
. ���y,,�+ � �„�� �CerGfled Mell o��M��
❑ Regis[ered �I Relum Recelpt for Mefchand
� ❑Insured Mell ❑C.O.D.
. 4.. ResMcted�elNeryl fFxtra FeeJ O Yw
E. ArOcle Number
. . . - (rransferfromseMcele6eq '(�j . �k� /.rp� ��{�p �'i1.3� ,
. � � . _� � . . - -.PSforrrt38'�1;February2004. DomesttcRetumReceipt _ � mzs95fi2h+4
� • • • • • � �
■ Complete Items 1,2,and 3.Also complete A Slgnaw . .
� ftem 4 if Restricted Delivery is desired. ❑AgeM�
� � ■ Print your nama snd address on the Yeverse ���-u-- ❑Addres
so that we can retum the card to you. B. qeceived by(PAn Neme) C. Date of�eliv
■ Attach this card to the back of the mallpiece, i �
or on the front if space permits. �• -f.
� D. Is detivery address dMerent fiom ttem 17 ❑Yes
• 1. Article Addressed to: If YES,enter delivery address helow: ❑No
(�Ulh'tct �(�(�c�DJ� �
ql� o E'- .ti�C1��S A��� igD
� �� , c� �ua 9.���M�� o��M��
❑Reglstered ,$�Retum Receipt for Metchand
❑Insuredivlail ❑C.O.D.
4. ResMded Deliveryl(Fxha FeeJ ❑Yes
2..Ariicle Number � � ��
R'�ans/er�romsar��abeq 7005 1820 0003 5486 8094 I
PS Fortn 3811,February 2004 Domestic ReNm Recelpt � io25ssoz-bt-i
■ Complete Items 1,2,and 3.Also comple4e A Signeture ,
item 4 if Restricted Delivery is desired. �A98^�
■ Pnnt your name end address on the reverse ❑Addres�.
5o ihdt W8 Can 2tufn thC�Cafd to yoU. 8. Received by(Pd ed Nam y C. Date of DeII
■ Attach this card to the back of the mailpiece, �r I n
or on the front If space permits. y� � �
� �. Is delivery addrazs dlffereM irom kem 77 ❑Yes
1. Article Addressed to: If YES,ent ress below: ❑ No
- �c�� s��r�S�- yy,as ��.
s,�e��,�+ r�s� ������ ��' ��
��s (�� � y� � ��� _ "
�����, C� Soa a f a. �rv� �
�Ce Mall
Registe �u etum Recelpt for Meichand
❑Insu2d Mall ❑C.O.D.
� 4. Restdcted DeliveM(���) ❑ves
2. Article Number / /��/ G �,\
. (frans/erlivmservicelabeq 7� . {��i ZC7 /�r'��i �YX�O J/�/J U.
; PS Form 3811,February 2004 Q Domestic Retum Re�Jpf mzess-oz-mi-i
�-e. _ .._...�___ ...--� . . ----_ _ . ._ .
'
� � • . . � .
: ■ Complete items-1,2,and 3.�Iso wmplete a Signam�
ttem 41f Restricted Delivery Is desired. l �agent
. . ■ Print your name end address on the reverse X \ O ndares�.
so that we can retum the card to you. g, ReceNed b (Prfnted Name G Date of Dellv
. ■ Attach this card to tha bacKof the mallpiece, ���(�j�Jj�Q
or on the hont if space pertnits.
� D. Is dellvety add2ss dMerent from kem 17 ❑Yes
1. Article Addressed to:,n�C_'� AI If YES,eMer delivery address below: ❑ No
� �—_ v
s�� U�a�.n Cav�d �� �
�r� ��-
qIS ID p/�/� s. sery��T,�
� ��nnn 1� CO 6l.lL)�I .�CeNfiedMail Of�ressMail
y �� �� ❑Reglatered .Q�Retum Recelpt for Metchend
� � ❑Insured Mall ❑C.0.D.
4, ResMctad Delivery7(E�ctra FeeJ ❑Yes
2. ArticleNumber 70U5 1$2� �003 54�86 8087 l
. (Transferlrom servlce�ebeq .
PS Fortrt 3811,Febnlary 2D04 Domestic Retum Recelpt to25aso2-rn-i
. __—__ ...____
1
� � � • • • �
■ Complete ttems�l,2,and 3.Also complete �a siyna<ure ��
Item 4 If ResMcted Dellvery Is desired. -\��'���,��e^�
- ■ Pdnt your name and address on the revers � I�F.CX.�7. p nddres:
so that we raFYfetum the card toyoa - B. Rece ed by nted Name) q.��te Ot Deliv�
■ Attaoh this cazd to the bacKof the mallpiece, �' i�
or on the front If space pertntts.
� D. Is delNery address ditte'ent from kem 7 Y�
, ,13,. Icle Addressed ta � If VES,enter delivery address below: �No
�o�.rld, S �-�ul�e 3�
�P�(�� �� au y
Cpng ��, ("o �'o�'� 3.���T�
Certffied Mail ❑Fxpress Mall
❑Repistered �etum Recelpt for Mefchand
❑Insured Ma�� ❑C.0.D.
4. Restricted Deliveyl(EMra FeeJ ❑Yes
2. Article Number /�!� {� R//�� G
(frans(erlrom seMce lebe� �( �J S r� U o� ���F� 4
PS Form 3611,February 2004 Domestic Retum Recelpt tud59�o1.�+td
� ' - e �m€ I s� I Sian ln
'��"���:.' �ra"} �*- �,� 2[a�k&Confirm FAQs
Tr��k & �anfirm
���r�h �t���i�
Label/Receipt Number:70051820 0003 5486 8124 �,�����1
Detailed Results:
� Delivered,April 11,2006,2:73 pm, LONGMONT, CO 80504 Enter Label/Receipt Number.
� Notice Left,Aprll 08,2006, 10:07 am, LONGMONT, CO 80504
� Forwarded,April 05,2006, 10:42 am, ECKERT, CO
6tes
c.�ack . . REtPm�at7$l+�.cpm.Ham9s
�
� POSTAL INSPEGTOR5 site map COfiteCt US govemment services jobs National & Premier Accounts �
Preserving the Trust Copyright OO 1999-2004 USP5.AII Rights Reserved.Terms of Use Privacy Policy
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Public Notice
Siegrist Construction Company, 875 W. 64`h Avenue, Denver, CO 80221 ;
303-427-8472, has filed an application for a Regular (112) Construction
Materials Operation Reclamation Permit with the Colorado Mined Land
Reclamation Board under provisions of the Colorado Land Reclamation Act for
the Extraction of Construction Materials. The proposed mine is known as the
Siegrist Construction Company Mine, and is located at or near Sections 35 &
36, Township 3 North, Range 68 West, 6`" Prime Meridian.
The proposed date of commencement is June, 2006, and the proposed date of
completion is December, 2006. The proposed future use of the land is
community amenity, recreation and water storage. Additional information and
tentative decision date may be obtained from the Division of Minerals and
Geology, 1313 Sherman Street, Room 215, Denver, Colorado 80203, (303)
866-3567, or at the Weld County Office of the Clerk to the Board of
Commissioners, 915 10`h Street, Greeley, CO 80631 , or the above-named
applicant.
Comments must be in writing and must be received by the Division of Minerals
and Geology no later than 20_days followfng receipt of this Public Notice.
Please note that under provisions of C.R.S. 34-32.5-101 et s�. Comments
re/ated to noise, truck t�affic, hou�s of ope�ation, visual rmpacis, effects on
property values and other social economic concerns are issues not subject to
this Office's jurisdiction. These subjects,.and similar ones, are typically
addressed by you� local governments, �athei than the Division of Mine�als and
Geo%gy o� the Mined Land Reclamation Board.
� �■ Complete items 1, 2, and 3.Also-complete A. Sig re
� item-4 if Restricted�tlelivery is dasired:� ����-�� ❑ Agent
� � Print your name and address on the reverse X- ddre
so that we can retum the card to you. B. a caived by(Prineed rvameJ ��e of Deii
■ Attach this card to the back of the mailpiece, �
� or on the front if space permits.
D. Is delivery address different from item 17 ❑ Yes
1�.-A{�rticle Addressed to:� �/� � If YES,enter delivery address below: ❑ No
, J+� ��f0..�`� .xnJ �,�,-}��.�C9iI, l��^I-.
L�n � �zobb Fle��,�, �
�130� 8�strlc�sPo-✓�� C��.
F/��c-�in�l lfU gOS� 3. ServiceType
1 C .�iV
�.Certified Mail ❑ Express Mail
❑ Registered �(Retum Peceipt for Merchan
❑ Insured Mail ❑C.O.D.
. 4. FiesMcted Delivery?(Extra Fee) ❑ Yes
2. ArticleNumber � '�DO�L 0660 0003 4699 5382 '
(�iansfer from service IabelJ
PS Form 3811,August2001 Domestic Feturn Receipt 702595-07-N
\ 1 � •
■ Complete�ttems 1,2,'and 3.Also complete a Slgnatu're .
� � item 4 if Restricted�Delivery is•desired.. � X �� � �� � �Agent
� ■ Print your name and address on the reJerse L(htil^-' ❑Addre
So that W8 Can fetUrn the Cafd to yoU. B. Received by(Ptlnted NameJ C. Date of Deli
■ Attach this card to the back of the malipiec�
. -� �n the front if space partnits. �
� 1. Micle Addressed to: �• Is delNery edtlress different hom ttem 17 ❑Yes
If YES,enter dalivery address be L7�o
P0.Ci-� iC F�g�{ �-� 'R ,
�`i"N; -rpr`'1 -�SuX�.l,loc�J ��,. %3` ,
P�O. �ox I I(o ,;�, I'.�
b I�DV I�'�,,, iM�� i��- S�• ��� �3. Service Type �
1iLa' ' lYJ�' �Certlfled Mall ❑ eil
Registered R �r an
� . ❑Insu2d Mail C.O.
. 4. ResMcted DelNeyt(Exha FeeJ . ❑y�
2. at�deNumt�er 70�2 0860 0�03- 469.9 5351 �
� . - - (/lanslarhom sarvlce labeQ � �
as Form 3811,February 2004 Domesnc Aemm Receipt io2sasoz-m
� . . I . , . . .�
- ■ Complete Items 1,2,and 3.Also complete . a Signature
ttem 4 ff Restricted Delivery Is desired. ❑Agent
� ■ Print your name and address on the reverse X ❑qddre:
� so that we can retum the card to you. B. ReceNed by(P/inted NameJ Q Date of De1P
■ Attach this card to the backbf the mailpiece, ;\��� .
• or on the front If space permits. ��
1. Articla Addressetl to: D. Is delivery eddress difFerent fmm kem 17 ❑Y
,q� �c�q��.r�, If YES,enter delivery address below: ❑No
N�, s�e� �'r�. ��.n,
3�fo� �.u��h� �
U�.`` � . 3. ServiceTYPe
T ` Cert(fied Mail p❑c1 Express Mall
� ' '" """ `��/ �O ��J�� ❑nsuired Mall 'O C,O.D,Receipt for Me�chani
4. ResMcted Delivery7(Exha Fee) ❑Yes
2. ArticleNumber 7p02 086� 0�03� 469.9 $375
(Itansler hom seMce IabelJ
PS Foml 3811,FebNary 2004 Domes[ic Retum Receipt 1o2sssOz-M�
- . - - -
■ Complete items 1,2,antl 3.Also complete .a Si� �ature�� �
Rem 4 if Restncted Dellvery is desired. � I f, r �A9f
■ Print your name and address on the reverse ' �X � �d�� ❑nd�
so that we can retum the card to you. B. ReceN by Pdnted Name) G Date of[
■ Attach this card to the back of the ma(Ipiece,
or on the front if space pertnits. � I ' �rF
� �, D. Is delivery eddress different from item 1? ❑Yes
7. ArtiGe Addressed to: -� If YES,enter delivery address below: �No
�.`�rQ� p��J�iC-�- ��
f��'f J�: 7T��/1Y12�,�,1
aa3s a�� ,�v�n.u�- 3. ServlceType
"�Ce�tiFled Mail ❑E�ress Meil
�j-l�2R-``e-`� � CD �(�0 3�- 7�i�3 0�sulred Mall �etOu�m Receipt for Merch
. 4. Restricted Deliveryl(Extre Fee) ❑Yes
z. nrt�c�eNumber 7002 �86� �003 4699 5344
. (fransfar Irom servlce le6e�
PS Form 3811,FebNary 2004 �omestic Retum Receipt ioussoz
� .
� � ■ Complete items 1,2,and 3�AIso complete A. Signature � ��� �� - �- ���
. � item 4 if Restdcted Delivery is desired. � 2 ��9e
■ Print your name�and address on the reverse ' �-�7G1 O�Add
. so that we can refum the card to you. . Recelv by(PnnteU Name) �G Date of
■ Att�ch this card to the back of the mailpiece,
or;,on the front if space pertnits. �as 19���2�� �6S L
- D. Is d ivery atltlress tlifferent from kem 7? ❑ Ves
1. Article Addressed to: If YES,enter delivery address below: �o
�Q. 0� Cb��✓`RC�C�
�} . p� -�ans�--�,�:k"�.
�faol f- A°r�sas f��
� �1,yy�. 3. ServlceType
��N f�Certifed Mail ❑ Express Meil
�oaa.a, ❑ Repistered �lReturnReceipt(orMerch;
, �n�' �� ❑Insured Mail ❑C.O.D.
- 4. Festricted Delivery7(EMrs Fee1 ❑ Ves
2. �Article Number �
� � (iranslerlromseMcelebep 70�5 1820 0003 548�6 - 8230 � � '���
PS Form 3811,August 2001 Domestic Ratum Recelpt �ozsas-oi
� + • . . . �
- � ■ Complete ftems t,2,end 3.Also complete _ a Signe � � ' �
-..�.:^ilam„4.,if ResVicted Delivery is desired. ��e
■ Qrint.y'Gur rrama and eddress on the reverse <—� ❑Add
� � so"tti�t-�we c2n retum the ca�d to you. �//�� (p���Nam�) � C. Date of o
■ qttach this card to the back of the mallplece,.�.`. : ��
' or on the hord if space pertntts. ����
��- �- D. Is ivery addiess difierent from item 17 ❑Y�
7. Micle Addressed to: � ^�`� If YES,enter dellvery eddress below: ❑ No
L�Ily ��
��a w. S��
�., Mocga� CO �o�o� 3. ���n�
� �erdfled Mail ❑E�rass Mall
❑Registered �ielum Receipt for Merch
❑Insured Mell ❑C.O.D.
R
4. ResMcted Deliveq/7(EzUa Fee) ❑Yes
` 2� �°����� ��� �� 7006 01�� �005 188� 0071
�'� PS��j�F��B�('J Domestic Retum Receipt 7o259i02
i
'� •• � � • � - - . � �iiiiiif�Y�
■ Complete items 1,2,flnd 3.Also complete h Si�9atura � �'�
� item A if Restricted Delivery is de$ired. ..{'' ._ _' ❑AgerH
■ Print your name end addre§s orS�the raveree X�fC3''f-°'P " �� �- � Addr�
so that we can retum the card to you. ' B. ReceNed by(Pnnted Name) �. C. te of el
■ Attach this card to the back of the mailpiece, .L e
:� or on the front if space permits.
� 7. Article Addressed to: D. Is tlelivery eddress different fiom ttem tt ❑Yes
If YES,enter delivery eddress belaw: ❑ No
� Ra M �a.�d. Cc�tP�
i3 � g�� ��. Cou� Rd.�3
��� ✓���T',/ l� OO � 3. Se ice TYPe
�rt�ed Mall ❑Fxpress Mall
�]Registered �Retum Aeceipt for Merchar
❑Insured Mail ❑C.O.D.
4. Restricted Delivery7(Ezha Fee) ❑Yes
2. ArtICIeNumber 70�5 182� 0�03 5486 8223 '�
. (Trensfer Irom service labe� �
PS Form 3811,February 2004 Domestic Retum Receipt �ozsss-02-M
. . . . . . .
� ■�Complete Rems 1,2,and 3.Also complete A Signatu .� - -
� Rem 4 if Restrided Delivery is desired. ,' ❑/�gent
i � Print your name end address on the reverse ❑Addre=
so that we can retum the card to you. g, p ed by(Pdnteq.c�me) � C. oate f Deli�
■ Attach this card to the back of the mailpfece, ,.G/��
or on the front If space permits. ����
i. Article Atldressed to: D. Is delivery eddmss differerrt from ttem 17 Yes
It YES,enter delivery edd'ess below: ❑No
(.t°-I-�-�� �ln�d�'� 83s r, tt�.-�y � s�
WQ-`�-e-r' Di �`I-r'�C � 13�r-�m.�d, �&os
p.p. �x ���' 6
��.hp�.J,� � C p 6 V SI v 3 rPf_..Ifled Mall ❑F�cPress Mall
y.y..o��
. , ❑Registered �Retum Recelpt iw Merchan�
❑Insured Mall ❑C.O.D.
� � 4. ResVicted Delivery7(Exha Fce) ❑Yes
2. Artide Number � ��
- (risnsler/romserv/cg.labeq 7005 1820 0003. 5486 8292 � i .,
PS Fortn 3811,February 2004 Domestic Retum Receipt . � �ouasaz-M-
.._._ _. - . . _...
� � • • • � � �. • • � �:... .. . -
■ Complete Rems t,2,and 3.Also complete A. Signature � � �- �
� item 4 if Rastrided Delivery is desired. -- " " ❑Agent
;� � Print your'name and atldress on tha reverse X � dres
so.that we can returrrthe card to you. B. Recelv by(Pnnted Name) . C. Date of Deliv
� - ■ Attach this card to the backbf the mailpiece,
-„. or on the front if space pertnits.
� D. Is delivery address different fram kem 1? ❑Yes
� 'Article Addressed to:
_ �p M r �U�,�y h I • A,1�� If YES,enter delivery address below: ❑ No
l� f V JlN l L /"I���
:r�r �cxlnk gaY�K q�° COr�9vno ,,v �.
--�.
��I ✓va.in S�(`ee� °' �,� <� � `�
�o� Q r\S '�f 3. ���Seeee,,,rvice Typey � �
gf`'1��'� �- �� 1 ,ayCertified fvfai� [:lTc;�3s�ail
�� Registered Ret eceipt for Merohand
❑ Insured Mail ❑ C.O.f).�
4. Restdcted Delivery?(Exha Fea) ❑ Yes
2. Artlde Numher �
(Transferlromservicelabeq 7�05 1820 00�3 5486 8247
- PS Form 3811,August 2001 Domestic Return Receipt 102595-01-M-
� • • • • •\ 1\ I � 'I�
■ Complete Items�1,2,and 3.Also compiete � ture ���. r��h��n�! q�
item 4 if Restricted Delivery is desired. (�;3 C��'
■ Print your�ame and address on the reverse ���
so ihat we can retum the card to you. g, eceived hy nted Name) . C. Date of I
� ■ Attach this card to the backbf the mailpiece, ��'I C'a
or on the iront if space permits. � � `��
. D. Is delivery address diHerent fmm Rem 77 ❑Ye:
1. Article Adtlressed to: � 1•1a..1 If YES,enter delivery address 6elow: ❑ No
- (',I p Rw�-,N-e.��eed� y l�y���. �vr
N���,r C-rinf`� c'xl�**��-0(o
��� �� lTwy ' "'" 3.1Sae1rviceType
��7J l.� OV.�-�Y y�CertlfiedMail �2s5Mail
l o�g L7 Registeietl etum Receipt for Mercl
❑Insured Mali ❑C.O.D.
. 4. Restncted Delivery!(Extra Fea) ❑Yc
z. a.nidaNumber 7��5 1820 0003 5486 8193 '
. (riensfer Irom servlce labelJ �
PS Fortn 3811,Pebruary 2004 Domestic Retum Receipt iozssso
,_._. _.__. . _. _ ._ .. .
ENVER CO 8Q2 .r
� , , . . . .
. ■ Complete kems 1,2,and 3..Aiso compiete � 9 � �
� item 4 if Restricted Delivery is desfred. X ���
� ■ Pdnt your name and address on tha reverse ll� �nda
so that we can retum the card to you. P g, q���b,�Prfnted Name)� c. oate of t
■ Attech this card to the back of the mail Iece, T„�
o�on the front If space pertnits. � �'�' .
D. Is delivery add'ess ftem 1? ❑Yes
1. Article Addressed to: If YES,eMer C .F'a4b w: ❑ No
V 1 I�� J�� li"" ""' �,C/_��h `�' 0����`�\
�c�/ ��:`;;',
'�Y'Q.nSwu���oY� A�OCecc�bh �j l MAY 2 3 2006 ; ?'
�l
P� o• P.�x 3 36 4S 3 3. �SejrvCertlfl M° ro `'��
. ����� �0 �� � 'LJ Registered m Recelpt tor Merct
❑Insured Mail ❑C.O.D.
, 4..ResMc[ed Delivery7�Exha FeeJ ❑Ye;
2. nrt�`�eNu`°ter 70�5 1820 �003 5486 8308 '
� ...:{Ciansferlrwn servfce IebelJ
PS Fortn 381'1,February 2004 Domestio-Rewm Recelpt �� � io�asa:
� _ �^ . . .. __.
� � � � • � � .
■ Completa items 1,2,and 3.Also complete A. Signature
� item 4 it Restricted Deliyery is desired. A9�
a Print your name�and addFess on the reverse
� � So tMa@ vJ��Cafr retUrn-the Cerd to you.� B. Receiv by(. in ed Name) � C. Date o
�� Attach this card to the back of the mailpiece,
or on the front if�space permits. �
D. Is delivery edd2ss diHerent trom item 17 Ye:
t �Article Addressed to: j If YES,enter delivery eddress below: ❑ No
�pr r�1y P�b��c S�r V�c� Ca n�
p� Coto�o ;�:. ,„�e;
'�'C�( �J�e.r� `� ��/� `
f
s�o I�� �-� �' �UI,J� �' 3. Se ice Type
J � Certified Mail ❑ Express Mail
(����J CG g��— Registered Return Receipt tor Merci
❑ Insured Mail C.O.D.
4. Restncted Delivery7(EMra FeeJ ❑ Ye
- 2. Article Number
� (iransler/rom servi � � .
Ps Form 3811,Au
�
■ Complete items t,2,and 3:Also complete , , ' A.Si9nature � � �
item.4 if Restricted'Delivery is desired. I 1 • ❑ Agent
■ Print-your name and address on the raverse � � X�.J� . ❑Addre
So that We Can fetUrn the Card to yOU. B eceived by(Pdnted NameJ C. ate of Del
■ Attach this card to the back of the mailpiece, ��G � 1 � i nes . ,r
or on the front if space permits. �S
� 1. Article Addressed to: D. Is delivery address diffe2nt(rom item 7? ❑ Yes
� �I I i n^ �0 � If YES,enter delivery address below: ❑ No
- j +=or-r�r—1 y wy�� 'Pe ,. � �x
� KQ1�10 �'(�- ��'� ��''�P`�
' ��uo w� a►s} s�-� Nc�:�-
S � 3. Service Type
W 6 C��-�,I K 6�a �rCertifled Mail ❑ Express Mail
❑ Registered �e[um Recelpf for Merchan
❑ Insured Mail ❑QO.O.
4. Resincted Delivery?(F�cha FeeJ ❑ Yes
2. Article Number ���
Rfans�erhomservice�abep 7005 1820 D�03 5486 8278
PS Form$$11,August 2001 Domestic Return Receipt iozsss-oa-m
.�� .�����������.• . . . . .
� . ■ Compiete kems�1,2,and 3.�AIso complete A Sig� W �,1"
� item d if Restrlcted Dellvery is deslred. ' � �.aqent
■ Pdnt your name and address on��he reverse - � � � ❑Addre
so that we can retum the card toyou. � B. R� ( rrted NemeJ � C. Date of Del
■ Attach this card to the back of themailplece,
�b�on the front If space pertnks.
� D. Is deli address diffetart fiom kem 17 ❑Yes
. 1 ' Article Addiessed to: If YES,errter dellvery etldress below: ❑No
� ;, �r �Ey �VldQ.rs nrl
�
; �;,;'Q ��p r✓U.S �OU.�"�-
� "'w��o�n�� �CD �OSO�
. � 3. Serv�e Type
�Cettl(led Mall O E5�ress Mall
• ❑Repistered �Retum Recelpt for Merchan
O,hsuredMeil C.OA.
� 4. ResMcted Deliver)R(Ex6a Feel ❑Yes�
2. �c���mr��/� 7��6 0100 UU�5 188� ��33 �I
� Ps Form 3811,February 2004 Domesdc Retum Recelpt �ozsssaz�r.t
. . ..•:. . ._ ., ...• . ..,. ..,. ..., . . • . • �
� ■ Complete items 1,2,and�3.Nso complete '"5�9 � �� �
� � i,tem 4'If�Art�Nbtad-0elivery is desired. � � �/'z^w���Age�'
' ■ �n`�t5tyoy�,t��dne and address ort the reveree. X ❑nddres
� SO that W0 Cen retufn the cerd to yoU. , Received hy(Pnnfed Narne) C. Date of Deli�
■ Attach this carcl to the back of the mailpiece,
. or on the front if space permita �3
D. Isdeliveryatldressdifferen� � �ite i? es
1. Article Addressed to: If YE5,enter delivery address below: ❑ No
Knrr mc.Gee oi�, '� G°'° �w
,9„-�� �"�'y �,r���4-
1994 �
� � . , !��p 3'�� 3. ,Syervice Type
7S�A•�-��' �c.�Certlfied Mail ❑ Express Mail
�}j N l,Q.,�'! r/� �a6� ❑ Registered �Return Recelpt tor Merchanc
�� � Vu ❑ Insured Maii ❑C.O.D.
. 4. Restncted Delivery?(Extre Fee) ❑ Yes
2. ArtideNumber 70�2 086� 00�3 4699 5399 '�..
(fransfer Irom service IabelJ �
PS Form 3811,August 2001 Domestic Return Receip[ io25es-oi-M�
. . .
■ Complete items 1,2,and 3.Also comple£"� ' ature � �,
item 4 If Restdcted Dellvary Is desired. . ,<� ❑Ager
�. ■ Print your name and�address on the ceverse' � '"� � � �� � � ��d�
so that we can retum the cafd to you. B. Received by(Pdnte ame) C. Date of Dt
I� ■ Attach ihis card to the back of the mailpiece, fi=��
� or on the front if space pertnits. � J
, D. Is delivery eddress dlffe'ent from ttem 17 �Yes
� � 1. Article Addressed to: It YES,enter delivery address below: ❑No
• '�l.�.Q, �:�y r'1`21.L�- S'PN�
�'
"' aU N� -�� �4ue,
1,2,e� � Cp d��31— 456y a. S���TY�
� . . . ���.Certified Mall ❑Exp�ess Mail
� ❑Regtstered Retum Receipt for Merchz
' � ❑Insured Mail �C.O.D. �
�� � � 4. Festrictetl Deliveryl(Eztre Fee) ❑Yes
z. nrtic�eNumber 7p05 1820 0003 5486 8209
. (fiansfer/rom seMce Iebel)
PS Form 3811,February 2004 Domestic Return Receipt 7o25e5o2-
' . ... .-.,_ . , ...-: �.. ....vr,:.
.... t-' •'.�-"I!".11'll.—L-� ...-'ti.. ..�E o�.,-_� .....�..• �. �..., . .
� � . � • . . . � •
. � ■ Complete items 1, 2,and 3.Also complete a Slgnatu � . �
item 4 if Restricted Delivery is desired. �A9e�
� � ■ Print your name and address on tfie reverse X��� Addr
� so that we Can retum the Card t0 yOU. � g_ p�i��b em B Dete of De
■ Attach this card to the back of tha mailpiece, � �
or on the front If space permiis. .�. �
� D. Is deliv address different from k 17 Ves
� i. Article Addressed to: No
�'"��y� If YES enter lflk�Bry�d�ss{�pW:
� Ul��l. �1rlh, S�'1" '"' _ inr�� [uuD
�,o� �X 733 � ; �
r �Vix.J �C r✓ l� ��� 3. L�nrvice TYPa
, u.l Certified Mall ❑Express Meil
��7 Re glstered �+Pe[urn Recalpt for Meroha
' ❑ Insured Mail ❑C.O.D.
4. Restdcted Delivery7(Fxhe FeeJ ❑Yes
, z. nrtic�e Number -'i 005 1820 0003 5486 8254
, (lrans�er hom service label)
PS Fo�m 1 , EOmestic Retum Receipt � ia25e5-m
.. 7F]i2�.C1"2 1J 3 A R/3!T
.. . _. . ... . . .
� • � 1 • • • �
��"��C'oinplete Items 1,2,end 3.Also complete '�� �Signa2ure
. ttem 4 If ResMcted Delivery Is desired. . ����d�e
■ Pdnt your name and address on the reverse ���
� so that we can 2tum the catd to you. 8. ReceNed by(Pnnted Nem � C. Date of[
■ Attach this card to the back of the mallplece, M A 2 � �-��
• or on the front if space pertnits.
D. Is delivery dress diffe�ent from ttem 1? ❑Yes
1. Article Addressed to: w � If YES,enter dNivery add ❑ No
(��-� Y� 'LC�n PG �or',
66Go� �cw Go�n !�° ,� ,
�'i'��^`'`) `�`-' � ...�. s. servicerype �
�CertfFled Mail ❑�L�q l�*���
Fegistered �fiet rMeroh
❑Insured Mail ❑C.O.D.
4. Restrictetl Deliveryl(Exha Fee) ❑Ye:
2. ArtICIeNumbw 7�06 �10� ��05 188� 0�88 �
(frans/er Irom seMce IabelJ
; Ps Form 3811,February 2004 DomesUc Retum Receipt 102595-0:
, . -- .. , - - - - rrrru�
■ Complete items 1,2,and 3.Also complete n. Signature _ .
item 4 if Restricted Delivery is desired. .:X�L ./1.p p �,��/�. �nt
� ■ Print your name and address on the reverse � � �. L�—�—E��..f\ � ❑�ndilre:
so that we Can retum the cerd to you. � e: Raceived by(Pnnted Neme) �� C.�Da of li
■ Attach this.card to the back of the mallpiece, 3/
or on the front if space permits.
D. Is tlelivery address diffarent from item 1? ❑ es
1. Artide Addressed to: If YES,enter tlelivery atldress below: ❑ No
� C�D �W10.AG.�14� G�}fD�Buwt CDi'aP;
,�h�n', m,0.Na�r �avtd, t,�.�St1Ph'
0'V�StP�
�M� . lk�l.rs,lp� � y�/� �rn�j(�(�A_ 3. ServiceType
p�e`f�V V •�ii�... � r
�� I�Certifietl Mail ❑ 6cpress Mail
�P. o- r�x a iy 9 �O Registered �Return Receipt for Mercharn
—,�I,,,, W,M„1 L^ „�r��(�/ '�-\/� �/�?�7� ❑ InsuredMail C.O.D.
i v�K.. Vf-Z�c W�W-� JG 6 6
' 4. Restricte6l Delivery7(Extre Fee) ❑ yas
2. Article Number �.
(�rens/er/romservicelabeq 7p05 182� � �003 5486 8261 i
PS Form 3811,August 2007 Domestic Return Receipt io2sss-oi-M
. .,. _ ._.. �
�._-_..��.._ � ..
'� • r . . . .
■ Complete Items 1,2,end 3.Also coi'�plete���� �� a Slgneture � - �
item 4 if Restdcted Delivery is desired� " � ❑ngent
� ■ Print your name and address on the reverse X ❑addre�.
so that we can retum the card to you: B. ReceNed by(Pnnted NameJ � � C. Oate of Deli
■ Attach this card to the back�of tha mailpiece,
or on the 5ont if space pertnits.
_ D. Is delivery iBe k m
1. Article Addressed to: If YES,enter delivery address below: No
q.rtT�' a��� �nc.� JU�i O 1 2006
l�W�bs'l Pa.CI��C Ra_i lroad
,yoc� r,�„�1as S�-. � -
� O� �C. �2S � [ 9 3. Service Type* � �;'�C�.. G'/Y.'.-'8't..•�
� �dlfied Mall ❑Ezpress Meil
Registeretl �Retum Recelpt for Merchen�
� ❑Inaured Mell ❑C.O.D.
. 4. ResMcted Delivery7(E�;tra Fee1 ❑Yes
z; nmaeNumber 70�6 ❑10� 00�5 1880 0163
. � (liansfer/rom servlce labeq �'
Ps Form 3811,February 2004 Domestic Retum Recaipt 1p�asq2-r.�
�—
� r • • . . � .
- �� ■ Complete kems�l,2;and 3.Also complete � A Sign re _ � •� .� �
� ftem 41f Restricted�pelivery is desired. /� . �❑qqeM
_ ■ Print your name and address on the reaerse . - l. �Addre�
so that we can retum the card to you. B. ReceNed by(Printed Name) C. e b Ii�
■ Attach this carcl to the back�of the mailpiece,
� or on the fmM if space pertnits. 3 v ��
D. Is delivery address diffe�eM from ftem 1? ❑Yes
� 1. Article Addressed to: - If YES,eMer dHivery addrass below: ❑No
����� Co��`y � l L�'
�13�S �w�. ��
�ongrvl �r�+, C° �osoy 3: ���T,�
rtrfied Mall ❑Express Mall
� egisteied ��O`etum FieceiptforMe�chan�
, ❑ nsu�ed Mall 'O c.O.D.
4. RestActed Deliveyt(Extra Fee) ❑Yes
2. Article Number
(fransfarlromseMcelaben 7005 182� 00�3 5486 8216
PS Fortn 3811,FObNary 2004 Domestic Retum Receipt iozsysoa�n.
- . _ ....r.—... . ..�.-.... ..._ _ . ., . ,. . . .. . . .
� . . . . . .
■ Complate items 1,2,and 3.Also complete A Signetu
ttem 4 if Restdcted Delivery Is desired. X `����� � ❑�9em
■ Print your name and address on the reverse �d�
so thatyv,g�can retum the card to you. B. Receiv Pdnted Name) g�ayfp�yy
� ■ Attach tHi9'card to the back of the mailpiece, v L API'
or on the front if space permits.
D. Is delivery atldress different from kem 11 ❑Yes
1. Article Addiessed to: If YES,entef delivery address below: ❑No
�
� � �� qa�
� $ .;.
� gss - l�o'�` ��' �.
P(�/!/*� � � 5. Service Type h� ���.
,/� .:,�-� `/� � l��W I O,Certifed Mall ❑Express M�" x- ��
V�\g�.. ( . IJ Rdgisteied ❑Retum Heo}�p�te�f i�henc
❑Insured Mail ❑�:C.O.D. �
� 4. Resiticted belivery7(Fxtea fee) ,
2. �vt�c�eNumeer 7002 086� 0003 46����$ �I
(l/ansler/rom service IabeQ „�p
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Labef/Receipt Number: 7006 0100 0005 1660 0057 -------
Status:Arrival at Unit Tt'�Ck&GDid`ttin
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Label/Receipt Number:7006 0100 0005 1880 0149 ��k&G0�1feri7�
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Your item was undeliverable as addressed at 7:10 am on May 31, 2006
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Permit M- 1982-015
Staked Amended Permit Boundary
June 9 , 2006
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April 20, 2006
Ms. Deb Gonima
State of Colorado
Division of Minerals and Geology
1313 Sherman, Suite 215
Denver, CO 80203
Re: DMG Permit Amendment No. M-1982-015
Siegrist Construction Company, Job No. 3811-PND
Dear Ms. Gonima,
This letter acts as authorization by Siegrist Construction Company (Siegrist), Operator of
the Siegrist Pits, for Jodi Villa, P.E. of Meurer&Associates to act and negotiate on
SiegrisYs behalf for the permit amendment referenced above. Ms. Villa is processing the
permit amendment for Carma (Colorado), Inc. in order to add the construction of a slurry
wall to the current reclamation plan.
Ms. Villa will supply Siegrist with copies of all correspondence sent to the Division of
Minerals and Geology.(DMG). Siegrist may, at any time, revoke this authorization, in
writing.
Signed and dated this��day of /�t''Q� � , 2006.
SIEGRIST Cf¢�dSTRUCTlO COMPANY ,
Signe : Signed:C��� ��.
. �
chael Siegrist Diane E. Siegnst
President Secretary
State of: t-cLt--�1 �� )
) SS
County of: )
The foregoing instrument was acknowledged before me this a�ay of �IL ,
/� 0
2006, bY � � as J'/L��� of
,.� � l.�Yy�-e.�r �%
No
Public:
C�' � /D-//-a o� 9
�� Applegate
` Group, �n�.
Consultants tor Land, Minerels,and Water
Memorandum
Date: June 7,2006 File No. OS-151
To: Jodi Villa '
From: Donatd E.Frick,E.I.T.,Water Resource Engineer�
Bill Wazmack,P.E.,Senior Project EngineerG�7v�-�'
Subject• DMG Adequacy Review,Permit No.M-1982-015
The fallowing commenis are iu response to the DMG's Adequacy Review Ierier from Deb Gonime dated May 23,2006. For
clarity,I have provided DMG's comments followed by our respective responaes.
7. The Division received comments regarding this amendment¢am the O�ce ofthe State Engineer and the Corps ojEngineers on
Apri!6, 1006. These comment letters were provrded to rhe operator durrng the pre-operatron rnspection ofApril ll, 2006(and are
enclosed with this adequacy letter, ar well). Additionally the Division received a comment letter from the Colorado Historical
Sociery on April 13,1006, which is also enclosed Pleare address these leners accordingly.
With respect to the letter from the Office of the State Engineer,please refer to Comment 21 of Tom Schreiner's letter below.
17. The Division received comments from the�ce of the State Engrneer(OSE)regarding the proposed applicatron. According
ta the OSE, before a well permit can 6e apprmed the applicant musl condua a field location of the site and dacument the
locations ofall wells within 600 feet of the permit area. The applicant must then obtarn a waiver ofobjection from a!!well owners
wrthin 600 jeet of the permir mea or request a hearing 6efore the State Engineer. See the attached OSE letter for jurther detail.
Please commtt to natfunher exposing groundwater until a wellpermit!s oblainedfrom the OSE. In addition, once the wellpermit
is obtained a capy must be submitted to the Divisian.
Please refer to Comment 21 of Tom Schreiner's letter below. Cazma will not further e�cpose groundwater unHl a well permit is
obtained from the OSE. Cazma will submit a copy of the well permit to ihe Division when it u issued.
18. Please submit information that clear(y definu the gaining and/or losing nature of SK Vrain Creek in the vicrnrty ojthe permk
area;this rnjormation must be prepared by a projessiona/hydrologist or other qual�ed professional.
Please refer to Comment 15 of Tom Schreiner's letter below.
The tollowing commeots are in response to the issues raised in the letter from Tom Schreiner dated May 22,2006.
6. The "Supplemental Geotechnical Engineering Report" prepared by Tenacon indreates the possibrlrty of groundwater
fluctuations should be considered when develaping design and constructian plans jar the slurry wall installation, and that
fluctuations in groundwater levels can best be determined by implementation of a groundwater monitoring plan. Please state
a�rnratrvely whether such a groundwater monitorrng plan will 6e developed and implemented as part of the slurry wall
installation project. Ijyes,please provide the details of fhe groundwater monitoring plan,such as location of monitoring sta[ions,
frequency of manitoring, design of monitoring stadons, length of proposed monitoring, and purpose of groundwater data
collected P[ease Respond.
Carma will implement a groundwater monitoring plan in order to determine the effecu of the slurry wall on the goundwater flow
in the area. The data wllected through the monitoring plan will be used to determine if mitiga6on of any eft'ecu on the pre-
existing groundwater flow is necessary.
1499 West 120'"Avenue,Suite 200 • Denver,Colorado 80234-2728 • (303)452-6611 • Fa�c: (303)452-2759
Based on previous groundwater studies we have completed in the area on projects similar to this one,we would expect one to two
feet of mounding to occur on the upgadient side of the slurry wa1L Generally spealdng,the mounding may extend to as much as
one half-mile to the north and to the north-west of the site. Minimal mounding is expected to the west of the slurry wall due to the
fact that the slurry wall is adjacent to St. Vrain River, and because there is minimal groundwater flow from the west onto the
property(see Comment 15,below).
To the extent that mounding to the north of the slurry wall would otherwise occur,the atready proposed perimeter drains end sewer
under-dcains tluoughout the development should collect excess groundwater, alleviate any mounding,return groundwater flow to
its pre-slurry wall condition,and thereby minimize any net impacts to che @roundwater flow in the area. All street sewers will have
a sanitary underdrain system at a depth of approximately 12 feet, and houses will have perimecer drains around their foundations.
These systems will alleviate any potential adverse effect &om mounding on ihe up-gradient side of the slurry wa11 because the
groundwater that would otherwise collect to ihe north of the slurry wall will be collected by these systems.
In order to evaluate the need for additional mitigation of effects on groundwater flow to the west side of the slurry wall, Cazma
will install monitoring wells in the general locatious shown on Tab 14. Using the existing lakes' water elevations as a baseline, if
the monitoring wells show in increase in water table elevation of over 3 feet, Carma will install the dtain shown on
Tab 14.
Also in the event of mounding in excess of 3 feet, Carma will also notify adjacent landowners, if any. If the installation of the
drain dces not alleviate the problem, Carma will and notify and consult with the DMG on acGons to take to alleviate the excess
mounding. Other possible solutions include,but are not limited to, installing a tempotaty dewatering well to discharge the e�ccess
water into the river,enlarging the size and capacity of the existing drains,or installing additional drains in the azea.
Carma will install the monitoring wells prior to compleuon of the slurry wall. After the slurry wall is constructed and for a period
extending for one yesr, Carma will Provide monthly readings of the water elevations in the monitoring welis. Based on Carma's
current development plans, the first houses will not be wnslructed until sometnne in 2007, at wluch time several months of
groundwater monitoring deta will be available and any effects of the slurry wall should already be determined.
The following is a summary of Carma's proposed groundwater monitoring plan:
1. Prior to installation of the slurry wall,Carma will install t6ree monitoring wells as shown on Tab 14.
2. Prior to,during, and for 12 months following installation of the slurry wall, Carma will submit monthly reports to DMG
showing the water elevation in each of the monitoring wells, including a compazison to the base line elevation of the
ponds.
3. If ihe monitoring wells show en increase in the water elevatiou of more than 3 feet over the base line elevation, Carma
will notify DMG.
4. After consulting DMG, Carma will prepare fmal plans for a perimeter drain along the western side of the slurry wall in
rhe location shown on Tab 14,and submit the plans to DMG.
5. Cazma will install the perimeter drain,and continue to monitor groundwater]evels for an additiona112 months,and report
the same to DMG.
6. If the perimeter drain does not alleviate the groundwater mounding, Cerma will notify and consult with DMG on actioas
to take to alleviate ihe mounding.
13. In conformance with Rule 3./.6(1),please ver�whether rhere are arry registered welJs wirhrn sir hundred(600)feet of the
proposed slurry wa/1 rnstallation. Ijyes, please provrde a map erhibit which shows the location and describes the ownership of
each registered well. (We[!s registered with the�ce of the State Engineer).
Based on information from the State Engineer's database, the only existing registered wells are wells registered to Siegrist
Companies,which we believe were originally intended to 6ll the ponds. It is our understanding that to date these wells have not
been constructed, and will or have been conveyed to Carma with the sale of the property. For ptuposes of the well permit
application for the site,as required by the Office of the State Engineer,the absence of eny wells within 600 feet of the siu will be
field verified by the water commissioner. If the water commissioner finds any wells within 600 feet of the site we will notify
DMG. To the extent that there may be existing wells within 600 feet of the site, ihe impact to those wells will be addressed
ttuough the well permitting process for the ponds.
14. In conformance with Rule 6.4.7(I), please state �rmatively whether the proposed slurry wall installation is expected ta
directly ajf'ect surface or groundwater systems wtihin the afjecred land and surrounding area.
1499 West 120�'Avenue,Suite 200 • Denver,Colorado 80234-2728 • (303)452-6611 • Fax:(303)452-2759
Please refer to ow response to Comment fi above. The slurry wall may cause some mounding on the western and northwestem
portion of the property, which will be monitored. If necessary, Carma has committed to mitigating such impacu as described
above to return groundwater levels to the'u pre-slurry wall conditions.
I5. In conjormance with Rule 6.4.7(2)(b), please provide a characterrzation af the allwial aquifer in fhe aJfected land and
surraunding area which includes the following:
• Hydraulic gradient, and direction ofgroundwater movement
• Description of the St. �rain Creek for the reach adjacent to the slurry wa!!installation(garnrng or losrng stream, channe!
stabrlrty, bank stabiliry,presence ojriparian vegeration)
� Descrrptron of the normal surface/groundwater Interactron and function lhroughout a 11-month cycle in the aJfected land
and surrounding area(includJng St. Vrain River)
Groundwater flow in the area is in a south to southeasterly direction. Based on previous USGS studies,the hydraulic gadient is
generally negligible in the imwediate viciniTy of the slurty wall; i.e.,the azea is chazacterized by slow movement of groundwater.
Motring to tlte west of the site,the hydraulic gradient generally follows the gradient of the river and is no more than about 2 feet
per thousand. About ],500 feet west of the site,the alluvial aquifer effecrively"pinches"off,thus there is very little groundwater
flow tluough alluvial aquifer to the west of the site. The d'vectioo end gradient of the groundwater flow veries seasonally and
annually as a result of runoff from upland irrigation and precipitation, and varies annually depending on prevailing hydrologic
conditions in ihe area.
The reach of the St Vrain River that may be impacted by the conswction of the slurry wall is about one mile lang. Given the
relatively shott distance, it is difficult to precisely quantify ffie gaining or losing nature of the river, This teach of the river
generally receives inflows from groundwater and sutface water&om uplend precipitation end irrigarion. Return flows from upland
irrigation consdtute the primary saurces of inflows to the river in this reach of the river.
In this reach of the river,there is little riparian vegetative growth,and evaporaUon from the free surface area is negligible. Given
that the inflows from groundwater and surface water from upland azeas likely exceeds riparien losses, in tiils reach the St.Vrain
River is generally a stable or gaining reach. However,the gaining or losing nature of the river is dependant on seasonal and annual
fluctuations in precipitation,irrigation runoff,and water consumption from neerby mining operations. Over a 12-month cycle,the
groundwater flow from the surrounding area into the St. Vrain River increases over the summer months as retum flows from
upland irrigation begin to accrue to the tiver. The groundwater flows diminish over the fall and winter,but wntinue to provide a
fairly constant base flow ta the river.
There will be no consumption of groundwater following installation of the slurry wall, and the existing groundwater flow into the
area will e�'ectively be muted around the slurry wall to the St. Vrain River by the perimeter drains end ihe sewer underdrains.
Therefore,the installation of the slwry wall will have no net impact on the surface/groundwater interaction in the area.
17. fn conjormance wrth Rule 3.1.6(1),please quanr�the vertical and horizontal exteru of impact ro the groundwater surjace and
normal groundwater recharge or,Jlow pattern(s) upon completion of 1he slurry wall installation. It rs the Drvision's ezperience
with other slurry waU installations that there is typically a "moundrng" and "shadowing" e/J'ect. These impacts are rypically
quantifred through groundwater modeling and f+eld verifred through a groundwater monitoring program. Also,please describe
and show on a map the location oj a�ry water J'eature (well, spring, werland, riparian vegetation) or permanent man-made
structure (leach freld, sewer line, highway bridge support, septic tank, etc) lhat is wlthin the scope (radius) ojinfluenc¢of either
mounding or shadawing. and assess the impact to such feature or structure. Finalty,please descrrbe rhe mitigation measures that
will be emp[oyed to minimize the impact on the various wa[er jearures or man-made structures.
Please see Comments 6 and 15,above. With respect to the goundwater modeling,the purpose of such a study would be to assess
the potential magnitude and extent of any such advecse impacts to determine if a groundwater monitoring program should be
implemented. Rule 3.1.6 requires that "disturbances ta the prevailing hydrotogic balance of the affected land and of the
surrounding area...be minimiud,"and requires compliance with applicable Colorado weter lews. In Hus instance,it is our opinion
that a full groundwater model is unnecessary to meet the requirements of the rule, and evoid any adverse consequences from the
installation of the sluay wall. There is also no per se requirement fot completion of a groundwater model,and in our experience is
often unnecessary especially in cases such as this where the effecis on the groundwater �ow in the area are expected to be
negligible,or to the e�ctent they ere not,the operator has already committed to adequate mitigarion measures.
Tab 14 shows the locations of existing man-made structures and the limited riparian vegetation located near the St. Vrein River.
To the extent that there are impacts to the �oundwater flow in the area resulting from the installation of the slurry wall, the
existing man-made structures wIll be protected by the monitoring and mitigation plan described above, which will effectively
1499 West 120'�Avenue,Suite 200 • Denver,Colorado 80234-2728 • (303)452-6611 • Fax:(303)452-2759
minimize or eliminate any adverse impacu to the groundwater flow. The existing ripazian vegetstion is located adjacent to the St.
Vrain River,and therefore we do not expect that the installation of the slurry wal]will have any effect on this vegeta6on.
21, Please indicate the status of the applrcant's applications to the O�ce of the State Engineer (OSE)for a wel!permit, and a
temporary su6stitute supply plan
Carma submitted an application for a renewal of the existing substitute water supply plan for the site on November, 9 2005. The
submittal also included an application for a new well pernut for the site. A copy of the submittal is attached hereto. On Maq31,
2006,the OSE issued an approval of the substitute water supply plan. The OSE is currently reviewing the well pertnit applicadon
for the site, and we are working with the water commissioner to verify the absence of wells within 600 feet of the site (see
Comment 13,above).
1499 West 120"'Avenue, Suite 200 • Denver,Colorado 80234-2728 • (303)452-6611 • Fax:(303)452-2759
__ : �pplegate
' �roup, o��.
November 9, 2005
Ms. Joanna Williams
State Engineer's Office
1313 Sherman Street,Room 818
Denver, CO 80203
RE: Renewal of Gravel Pit Su6stitute Supply Plan
Del Camino Pit(a.k.a.Riverdance Subdivision),DMG Permit No.M-082-015
Dear Joanna:
The purpose of this letter is to request a renewal of the substitute supply plan for the Del Camino Pit
on behalf of Carma Development, LTD (Caima), pursuant to C.R.S. § 37-90-137(11) and §37-80-
120: The,original substitute supply plan was approved by your office on September 28, 1999.
Enclosed with this letter is a check for $697.00 payable to the Division of Water Resources For the
SSP renewal fee and the well permit application fee. The only changes to the substitdte supply plan
made by this renewal is a change in the source of replacement water for the winter months, and an
updated es6mate of the consumptive use at the site to account for current exposed surface area.
. PROJECT DESCRIPTION
The site is generally located in the southem half of Section 35,Township 3 North,Range 68 West, in
Weld County (see Figure-1). The site was originally permitted as a sand and gravel mine under
DMG Parmit No, M-82-015. Mining and reclamation at the site has since been completed leaving
three unlined lakes at the site. This substitute supply plan accounts for the evaporation of the
exposed surface area at the site.
Since the original substitute supply plan was approved, Carma has purchased the property and
intends to build a housing development encompassing the site (now known as"Bayshore"). As part
of the development plan, the total surface area of the existing ponds will be reduced creating two
sepuate lakes, and the fakes will then be lined with a slurry wall. T'he lining of the ponds will likely
occur from April 2006 through July 2006. However, for the purposes of this plan, the site �vill be
presumed unlined during its full term, and no reduction in exposed surface area will be accounted
for. If and when the slurry-wall liner is completed and certified by your office, we will amend the
plan to account For the removal of fhe consumptive use of groundwater due to evaporation.
The original subsdtute supply plan identified as replacement sources 3 shares in the Rural Ditch,
3/5'"� ownership in the Hayseed Ditch, and a lease with Poudre Prairie Mutuai Reservoir and
Irrigation Company (PPMRIC). T'he replacement sources remain the same in ihis renewal as in the
original substitute supply plan with.the exception of the PPMItIC lease. In its place, Carma has
r
1499 West 12oth Avenue,Suite 200 _ . (303)452-6611 •Fax(303)452-2759
Denver.Colorado 80234-2759 . www.applegategroup.com
'c,Joanna Williams
,tE:Del Camina Pit SSP
November 9, Z005
Page 2 of 4
contracted with the Little Thompson Water District for Colorado-Big Thompson Project water that
will be used for replacement.
CONSUMFTIVE USE AND PROJECTED STREAM DEPLETIONS.
The only consumptive use at the site is evaporation from the exposed �oundwater. Reclamation of
the site left ihree ponds with a combined surface area of 109.4 acres. Based on an interpolation
betcveen contours of equal evaporation rates from the NOAA Tectuiical Report NWS 33,
Evanoration Atlas for the Conri�uous 48 United States,the gross annual evaporation is 39.78 inches.
Using data from the Colorado Climate Center, the precipitation at the site, estimated based on the
Longmont station, is 12.95 inches per year. Assuming 70 percent effective precipitation, the annual
net evaporation, calculated as the gross evaporation less effective precipitation, is 2.56 acre-feet per
acre, or 280.02 acre-feet for the site as shown in Table-1.
Each pond is located within 100 feet of the continuously flowing channel of the St. Vrain River, and
therefore, depletions have been assumed to be instantaneous. Table-1 shows the estimated stream
depletions,which are equal in volume and tnning as the actual evaporative depledons at the site.
REPLACEMENTSOURCES
Replacement water will be supplied from 0.75 share in the Rural Ditch, 3/5"'� ownership in the
Hayseed Ditch, and Colorado-Big Thompson Project water. A detailed descripUon of each
replacement source follows.
1. Rural Ditch
The historic use of the Rural Ditch shares was quantified in the original substitute supply
plan for the site. Carma owns a total of three shares (the same three shazes included in the
original plan)that were historically used on two separate parcels of land,the Adler and Gould
parcels. Since the original plan was approved, the SEO has adopted a dry-year standard for
quantifying the historic use of water rights for use in substitute supply plans, whereby the
historic deliveries are lunited to the lesser of the long-term average and the four year dry-year
average (1954, 1963, 1977, and 1994). We have modified the historic use analyses for the
pazcels accordingly,as shov,m in Table-3a(Adler Parcel)and Table-3b(Gould Pazcel).
All other elements of the original quantification remain the same. The historic retum flow
analyses for the two parcels have been updated to account for the change in diversions, but
the methodology and input parameters remain consistent with the original application. Please
refer to Appendix A for a copy of the updated return flow analyses for the two parcels.
The total annual consumptive use credit for the three shares is 116.46 acre-feet based on the
revised dry-year yield analysis. Due to the increase in winter remrn flow obligations
associated with the Rural Ditch shazes as more shares are applied to the plan, only 0.75 share
will be applied to the plan during its term, and will be ordered at the Rural Ditch waste ditch,
where it will be retumed to the river. If, in conjunction with the Hayseed Ditch rights, the
0.75 shazes are inadequate to provide the required replacement water during the irrigation
Ms.Joanna Wil(iams
RE:Del Camina Pit SSP
Nmember 9, 2005
Page 3 of 4
season. We will amend the plan to apply the remaining ownership to the plan. Table-4
ahows the applicarion of the 0.75 shazes and the corresponding return flow obligations.
2. Hayseed Ditch
Carma owns 3/5'� of the water right decreed to the Hayseed Ditch, the number one priority
on the St. Vrain Creek with an appropriation date of January 1, 1860. T'he historic use of the
water right was quantified in case No, 86CW292. A copy of the case is included in
Appendix B. In that case, the historic diversions were determined to be 300 acre-feet, and
the historic consumptive use was determined to be 150 acre-feet. The dectee entered in the
case also ]imited the use of the water right to the period from May through September.
The decreed alternate points of diversion aze adjacent to the site in section 35. As in ihe
original. substitute supply plan, the water right wi11 be used to provide a portion of the
replacement water during the May through September period. The amount of water required
from the water right is shown in Table-4. The water will be left in the river at the decreed
altemate points of diversion.
3. Colorado-Big Thompson Project Water
As part of the associated development, Carma has contracted with the Little Thompson Water
District for the use of units in the Colorado-Big Thompson (C-B'1�project. Each C-BT unit
provides an average of 0.7 acre-feet of water each year, but is determined on an annual basis
by the Northern Colorado Water Conservancy District based on projected demands from the
system.
The C-BT water can be delivered at several points including (1) St. Vrain Creek via the St.
Vrain Supply Canal; (2)Boulder Creek via Boulder Reservoir and the Boulder Creek Supply
Canal; or (3) the South Platte Supply Canal. The releases will be coordinated with the
District 5 or 6 water cominissioner as appropriate. The releases may be aggregated in the
winter months to provide replacement water to the next downstream calling water right.
Table-4 shows the projected required releases of C-BT water tluoughout the year.
WELL PERMIT -
Appendix C contains a new gravel pit well permit application for the site. We will coordinate with
the District 5 Water Commissionec to determine if there are any wells within 600-feet of the site, and
focward that information to your o�ce as soon as it is available.
OPERATI0N OF THE PLAN
Carma intends to line the site during the term.of this plan, thereby negating need for a percnanent
plan for augmentation. Because depletions are presumed to be instantaneous, as soon as the Division
oF Water Resources approves the liner, there will no longer be any augmentation responsibiliTy for
the site. A letter to this effect will be submitted to your office at that time.
Ms.Joanna Wil[iams
RE:Del Camino Pit SSP
November 9,2005
Page 4 of 4
Finally,monthly accounting will be submitted to the Division 1 Office as requested. Until the liner is
approved, or the total e�cposed surface area is reduced, the consumptive use at the site will not vary
from the estimates used in this plan. Accounting of monthly replacemenu balanced against monthly
depletions will be made available upon request ,
SUMMARY
• The total annuai consumptive use at the site is 280.02 acre-feet.
■ Replacement water from May through September will be from 0.75 shares in the Rural Ditch
Coinpany,and 315'�ownership in the Hayseed Ditch water right.
� Replacement water from Octoher through April will be from leased water in the Colorada
Big Thompson Project:
We request that this plan be approved from January I, 2006 through December 31,2006. If you have
any questions or need additional information,please do not hesitate to call me at(303)452-6611.
Cordially,
Applegate Group, �ne.
�a--�
Donald E:Frick, .I.T.
Water Resource Engineer
DEF/ta
Enclosutes
cc: Tyler Packard,Carma
Jodi Villa,Meurer&Associates
AG File No. OS-151
Carma (Colorado) Inc. Check Date: 11/3/2005 Check No: 002101
Voucher Invoice No Description Iavoice Data Invoice Amount D18count Amount Paid
005479 WaterPlanApp 10/26/2005 697.00 0.00 697.0o
. Chack totals: 697.00
Payee: DIVISION OF WATER RESOIIRCES Vendor: 005748 Chack No: 002101
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IWmID'¢'LHismtkDircrsiws � Group,��.
SG Vnm Is4es DewWpmen[ Novemhcr 9,20D5
Car�m Dewlopmeo4� .
TahlShuet= 50
Ym 7m Feb Mv APr Ma Jw 1W Au Oct Nov Dec ToW '.
I950 0.0 0.0 0.0 0.0 6360 1188.0 1146.0 350.0 S13.0 I51.0 0.0 0.0 3982.0 '
1951 0.0 0.0 0.0 0.0 5120 1206.0 1716.0 944.0 8l0.0 700.0 0.0 0.0 5350.0 '
1952 0.0 0.0 0.0 0.0 0.0 14020 I500.0 1562.0 570.0 116.0 0.0 0.0 5180.0
195J 0.0 0.0 0.0 0.0 860.0 ISI6.0 Ii10.0 ]69.0 A60.0 0.0 0.0 0.0 4824.0 �
�95a 0.0 0.0 0.0 88.0 13'/0.0 U74.0 1U81.0 164.0 0.0 0.0 0.0 0.0 4180.0
1955 0.0 a.0 0.0 96.0 16020 1096.o ta80.0 690.0 1A6.o 200.0 0.0 OA 5360A �
1956 0.a 0.0 0.0 0.0 1670.0 1572.0 ll56.0 116/.0 IO2.0 148.0 0.0 0.0 fi373.0 ,
1957 0.0 0.0 0.0 0.0 0.0 988.0 2596.0 906.0 558.0 768.0 0.0 0.0 5816.0 ,
19S8 0.0 0.0 0.0 0.0 0.0 872.0 IId2.0 1046.0 SSt.0 822.0 0.0 0.0 IS34A ��
1959 0.0 0.0 0.0 0.0 191.0 I674.0 1118.0 1016.0 756.0 4�8.0 0.0 0.0 5666.0
79fi0 0.0 0.0 0.0 0.0 12U.0 IB6Y.0 1322.0 11Ib.0 882.0 290.0 0.0 0.0 56020 �
1961 0.0 0.0 0.0 0.0 0.0 906.0 I2R0 1416.0 146.0 0.0 0.0 0.0 3760.0 �
1962 0.0 0.0 0.0 0.0 996.� 1398.0 1540.0 1050.0 25fi.0 II3.0 0.0 0.0 53120
1963 0.0 0.0 0.0 164.0 ISfi0.0 520.0 7056A 906.0 574.0 72.0 0.0 0.0 4852.0
1964 0.0 0.0 0.0 0.0 1670.0 29i0 7T1<.0 696.4 154.0 U.0 0.0 0.0 4586.0
I965 0.0 0.0 0.0 0.0 9620 0.0 1158.0 596.0 136.0 0.0 U.0 0.0 2879.0 .
1966 0.0 0.0 0.0 0.0 97G0 17/0.0 7568.0 574.D 96.0 0.0 0.0 0.0 1469.0 .
196] 0.0 0.0 0.0 i20.0 270.0 258A NRO 1301A I94.0 17fi.0 U.0 0.0. i528.0 �.
�966 0.0 0.0 0.0 0.0 780.0 im0.0 Y190.0 756.0 &.0 0.0 0.� 0.0 5738.0
�969 0.0 0.0 0.0 10.0 110.0 60.0 U36.0 1176.0 356.0 0.0 0.0 0.0 7478.0
1970 0.0 �0.0 0.0 0.0 1004.0 59D.0 1986.D 1422.0 352.0 0.0 0.0 O.0 5354.0
1911 0.0 0.0. 0.0 0.0 350.0 2438.0 29�0.0 I508.0 706.0 0.0 0.0 0.0 7)40.0
19R 0.0 �.0 0.0 2l.0 II56.0 16920 1994.0 I(68.0 870.0 0.0 0.0 0.0 700M1.0
I9]3 O.D 0.0 0.0 0.0 0.0 701b.0 E091.0 I090.0 143.0 0.� 0-0 0.0 1372.0
1974 0.0 0.0 0.0 0.0 1175.0 I<97.0 1d71A I152.0 309.0 4.0 0.0 0.0 6fi04.0
1975 0.0 0.0 0.0 0.0 893.0 1334.0 2194.0 IN7.0 883.0 0.0 0.0 0.0 6801.0
1976 0.0 0.0 0.0 97.0 849.0 16C1.0 1970.0 1176.0 828.0 7A.0 0.0 0.0 6577.0 '
l9fl � 0.0 0.0 O.0 D.0 7728 1520.6 1019.7 8653 312.5 91.1 0.0 0.0 455I.0 .
I978 U.0 0.0 0.0 0.0 0.0 968A 1615.6 1289.0 3<5.5 544.5 0.0 0.0 5763.0
t979 0.0 0.0 0.0 0.0 0.0 627.7 2702.7 137A.7 974.2 130.7 0.0 O.0 5756.0
1980 U.0 0.0 0.0 0.0 0.0 1498.9 2�80.9 1295.9 558.4 0.0 0.0 0.0 5835.1
�ggi 0.0 0.0 0.0 0.0 5]A.7 I789.0 IBI7.6 687.1 I96.0 0.0 0.0 0.0 tll<.4
�gg2 0.0 0.0 0.0 IB3.1 W3.5 U543� 2]A3.7 1718.6 299.0 0.0 0.0 0.0 6'/@.2
1993 0.0 0.0 0.0 0.0 0.0 �31.6 162].5 1560.2 fi71.2 128.7 0.0 0.0 1619.2
1986 O.0 D.0 0.0 0.0 91d.8 1586.0 25]8.0 1053.3 1011.8 0.0 0.0 0.0 814].9
I905 0.0 0.0 0.0 0.0 31fi.8 1]00.8 1576.t 1190.0 398.5 0.0 0.0 0.0 S131.2
1986 FO 0.0 0.0 0.0 412.6 ]987 206G.8 918A 414.6 0.0 0.0 0.0 4211.0
I96] 0.0 0.0 0.0 0.0 Y66.6 B93b 12%.9 6912 63.5 0.0 0.0 0.0 315J.0
1988 0.0 0.0 0.0 0.0 298.7 2037.5 I9875 1468.0 210.5 O.a 0.0 0.0 fi00I.2
1989 0.0 0.0 0.o D.0 ISi6.2 978.6 4402.7 175L9 1i.] U.o 0.0 OA 66631
�99p 0.0 0.0 0.0 0.0 elll I110.6 1380.7 U94.8 811.7 0.0 0.0 0.0 5541.0 �
�997 0.0 0.0 0.0 D.0 1093.1 17653 178?.9 7J17.6 J649 0.0 0.0 0.0 &1�5.7
�992 0.� 0.0 0.0 0.0 H85.0 7301.8 �1259J 1261.0 0.0 - OA� � 0.0 OA 5707.9
�99) 0.0 O.D 0.0 0.0 1609.0 1191.0 1669.J 9723 331.3 0.0 0.0 0.0 5TR.6
�994 0.0 0.0 0.0 0.0 665.0 1502.0 l96].0 1736.0 10520 373.0 0.0 0.0 7M5.0
1935 0.0 0.0 0.0 0.0 0.0 0.0 1603.0 2H6.0 953.0 0.0 0.0 0.0 5003.0
�996 0.0 0.0 0.0 0.0 179'!.0 I092.0 1609.0 1274.0 307.0 0.0 0.0 0.0 5473.0
�9g7 0.0 0.0 0.0 0.0 804.0 6J0.0 1812.0 1053.0 1028.0 0.0 0.0 0.0 5]2lA
1999 0.0 0.0 0.0 7A3.0 1954.0 1838.0 1919.0 1540.0 I321.0 0.0 0.0 0.0 8T/5.0
�999 0.0 0.0 0.0 198.0 59H.0 110<.0 1995.0 1279.� 868.0 500.0 0.0 0.0 654L0
7.000 0.0 0.0 0.0 972 I5420 I816.0 1627.0 I80].0 I540.0 0.0 0.0 OA 84312
2001 0.0 0.0 0.� 0.0 434.0 15T10 1650.0 12G].0 1162.0 361A - 0.0 OA bN6.0
71p2 0.0 0.0 0.0 318.0 951.0 1007.0 I115.4 1J9.0 341.0 Sfi9.0 0.0 a.� 5000.0
Zpp'� 0.0 0.0 0.0 76.6 IOfi0.0 1128.0 196I.0 760J.0 I1]9.0 910.0 0.0 0.0 8979.6
pvm c 0.0 0.0 0.0 3].I 737.8 1i8�.4 177�.2 1�71•0 5�6.6 135.8 0.0 0.0 5605.1
Jap Fcb Mar Me Iw Iul Av S Ott N^`' 11� ropl
�9$/ 0.� U.0 0.0 88.0 i3)0.0 1474.0 IOB6.0 164.0 0.0 0.0 0.0 0.0 4180A
1963 0.0 0.0 0.0 164.0 ISb0.0 520.0 1056.0 946.0 334.0 72.0 0.0 0.0 I8320
1977 0.0 0.0 0.0 0.0 7126 1530.6 1019.) 865.J 342.5 91.1 0.0 0.� 4352A
�994 0.0 0.0 0.0 0.0 fi65.0 1502.0 i96].D I736.0 1052.0 373.0 0.� 0.0 7275.0
A 0.0 0.0 0.0 63.0 lOT7.0 1254.2 1781.7 927.8 483.1 131.0 0.0 a.0 52199
[eo'er ofDryycar aveiage en6lany-rerm aMerage
Jan Feb Mar APr fdaY )un Jul Aug SeP OU Nm Dtt TMni
0.0 a.0 0.0 3].1 737.H Iie4.4 I]81] 927.8 �B'-.1 134.0 0.0 0.0 1781.9
Nota:
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Appendix A
Rural Ditch
Historic Return Flow Analyses
Stream Depletion Analysis �
Adler Farm
Return Flow Analysis
ppplegate
Dismnce&omstream= o �ft � Group,uw.
Transmiseivity=
SpecificYield= 0�2
No-Flow Baundary= 8�� ft November 9 2005
Comumed Cumulative Cumulative Voluroeof Volumeoi
CnmulztWe Vo�ume Volume Voiumeof Dep�etlon Stresm
Time Mon[h Pumped Pumped Depletfon TLisSlep Depletbus
(mouffis) fac-ft (ac.fQ (ae-tt) (�o-tl (a<dt)
I Jan-05 .00 0.000 0.000 0.0000
Z Feb-05 0.00 0.000 �•00� �•��
3 Mar-05 0.00 0.000 ���� ���
q Apr-05 075 0951 0.001 0.0006
S MaY-05 28.60 29.355 0.041 0.0407 Year 1
6 !un-05 23.98 53340 0.746 0.7046
7 Jul-0S 25.95 79.294 2.860 2.1140 26.65
8 Aug-O5 18.79 98.082 6.407 3.5469
� S�p.q5 976 107.845 11.115 4J081
10 Oct-05 3.43 1I1.276 16.416 53015
Il Nov-05 0.00 1I1.276 21.724 5.3072
12 Du-05 0.00 111.276 26.649 4.9252
13 Ien-06 0.00 111.276 31.059 4.4098
14 FeL-06 0.00 111.276 14.994 3.9358
�5 Mar-06 0.00 111.27b 38.540 3S453
16 AP*-06 0.75 112.027 41.772 3.2326
17 May-06 28.80 140.631 4�1.793 3.020fl Year2
�B Jun-06 23.98 164.616 48.272 3.4790
l9 Jul-06 25.85 190.570 52.990 4.7174 61.28
20 Aug-06 18.79 209.358 58.994 6.0046
21 Sep-O6 976 219.121 66.034 7.0396
22 Oct-06 3.43 222.552 73.555 7.5208
23 Nov-06 0.00 222.552 80.980 7.4255
24 Dw-O6 0.00 222.552 87.931 6.9509
25 Jan-07 0.00 222.552 94.281 6.3498
26 Feb-07 0.00 222.552 100.077 5.7958
27 Mar-07 0.00 222.552 105.407 53299 . . . . .
28 Apr-07 0.75 223.303 110353 4.9459 � .
29 MaYA7 28.60 251.907 �1i5.019 4.6663 Year3
30 Jun-07 23.98 275.892 120.079 5.060D
31 J��.p7 25.95 301.846 126.315 fi.2366 ���8
32 A�g-07 18.79 320.634 I73.760 7.4650
33 Sep-07 9.76 330397 142.224 8.4432
34 Oc[-O7 3.43 333.829 151.09d 8.8701
3S Nov-07 0.00 333.829 159.816 8.7227
36 DecU7 0.00 333.829 168.015 8.1981
pege l of3
Cousumrd CumulaGve CLmulauve Volumeof Volumeof
- CumWaHve Volume Volume Volumeof Depletloo Stream
� Time Month Pumped Pumped Depletioo This Step DepleUone
(moqths) (ao-R) (no-ft) (ao-fq (ao-k) ac-tt)
37 7en-08 D.00 333.629 I75.564 7.5490
38 Feb-08 0.00 333.829 182.512 6.9488
39 Mar-08 0.00 373.829 188.951 6.4385
qp AprA8 0JS 334.580 194.963 6A119
41 May-0B 28.60 363.183 200.654 S.G913 Year4
q2 ]un-08 23.98 387.168 20fi.700 6.0455
43 ]ul-08 25.95 413.122 213.884 7.1843 91.79
44 Aug-08 18.79 431.911 222.260 8.3762
45 Sep-0S 9.76 441.674 231.560 9.3194
4G OUAB 3.43 445.105 241.292 9.7(27
q� Nm-08 0.00 445.105 250.825 9.5328
48 Dec-08 0.00 445.105 259.SD2 8.9771
49 Jan-09 0.00 445.105 26B.I00 8.2961
S0 Feb-09 0.00 445.105 275.769 7.6690
51 Mar-O9 0.00 445.IU5 282.900 7.1312
52 AprA9 0.75 445.85G 289.578 6.6779
53 May-09 28.60 474.460 295.910 G.3315 Year 5
54 Jun-09 23.98 496.444 302.571 6.6613
55 7u1-09 25.95 524.398 310.347 7.17G4 99.70
5G Aug-09 18.79 541.187 319.293 8.9454
57 Sep-09 976 552950 329.I6U 9.8670
58 Oct-09 3.43 556.361 379.399 10.2389
59 Nov-09 0.00 556381 349.438 10.0391
bp pec.09 0.00 556.381 358.902 9.4639
67 7m�-1� 0.00 556.181 367.668 8.7660
62 Feb-10 0.00 556.381 375.787 8.1191
G3 Maz•10 0.00 556381 383.351 7.5639
bq Apr•10 0.75 557.132 190.445 7.0939 .
b5 May-10 28.60 565.736 397.176 6.7317 Ycar6
66 Jw-10 23.98 609.721 404.222 7.04fi1
67 Ju1-10 25.95 635.674 412.369 8.1462 703.67
5g pug-10 18.79 654.463 421.670 9J012
69 Sep-10 9.76 664.226 431.879 10.2091
70 Oc�-10 3.43 667.657 442.447 10.5676
�� Nov-10 0.00 667.657 452.802 103555
72 Dec-10 0.00 667.657 462.570 9.7680
73 land l 0.00 667.657 471.628 9.0582
74 PeMll 0.00 667.65' 480.029 8.4004
�5 Mar-11 0.00 667.657 487.862 7.8371
76 Aprvll 0.75 668.408 495.216 73540
n n�y-u 28.80 697.012 502.197 6.9816 Year7
78 Jw-11 23.98 720.997 509.484 7.2868 .
79 ful-ll 25.95 74G.951 517.862 83777 106.52 � . . .
B0 Aug-11 1879 765J39 527.366 9.5237
g� Se�rll 976 775.502 53'7.809 10.4229
82 Ochll 3.43 778.933 548.582 10.7731
g} Nov41 0.00 778.933 559.135 10.5531
g4 Dcoll 0.00 778.9J3 569.093 9.9580
85 Jen-12 0.00 778.973 578334 9.241]
86 Feb-12 0.00 778.933 586.910 8.5760
87 Mer-12 0.00 776.933 594.912 8.0020
86 A7u-12 0.75 779.684 602.428 7.5164
89 May-12 28.60 808.288 G09.Sfi6 7.1378 YearB
90 Jun�12 23.98 832.273 617.003 7.43G9
91 ]ul•12 25.85 858127 625.525 6.5220 108.31
y2 puq-]2 1g,7g 877.015 635.187 9.6626
g; gep.12 g,�6 886.778 W5.744 10.5566
qq Oct-I2 3.43 890.209 656.646 10.9015
95 Nov-l2 0.00 690.209 667322 10.6766
96 Deo-t2 0.00 690.209 677.399 10.0767
page 2 otJ
Coosumed Comulative Cumulative Volumeof Volumeof �
Cumolative Volumc �olume Volume of Depletluu Stresm
� ifine Mont6 Pumped Pump�d Dep�eHon T6ic Skp Depietlons
(months
(ao-tt) Uo-R) (ao-fq ao-ft) (�o-fU
q7 Jan-13 0.00 890.209 686.754 9.3551
9g Feb-13 0.00 890.209 695.440 8.6fl57
99 Mar-13 D.00 890.209 703.547 8.1075
I00 Apr13 0J5 890.961 711.I65 7.6181
101 MaY-�3 28.60 919.564 716.401 7.2353 Yeaz9 .
]02 hm-13 23.98 943.549 725.931 7.5308 109.42
103 Jul-13 25.95 969.503 734.544 8.6122
Ipq Aug-13 18.79 988.291 744.29J 9.7492 �.
105 Sep-13 9.76 998.054 754.933 10.6400
� 106 �ai3 3.43 1001.486 765.915 10.9817
� 107 Nov-13 0.00 1001.486 776.668 I0.7537 Stead -Stah Valnea -
108 Dec-13 0.00 1001.48G 786.BI9 10.1512 :.:.:937b.'.-:� �
109 lan-14 0.00 t001.466 796146 9.4264 .-�.��&847 �"�
I10 Febl4 0.00 1001.486 SO5.000 8.7543 - ��.6.259 .� ���
lii Mar-14 0.00 1001.48fi Bi3.174 8.1733 �7.762 -:
� ll2 APr.14 0.75 1002.237 820.855 7.6814 .TJ73
� ��; May14 28.60 1030.841 828.151 7•Z962 5'�*�� .���9
� 114 Jm-14 23.98 1054.825 835.741 7.5894 110.12 &760
I15 ]u1-14 25.95 I060.779 844.409 S.fi689 9.907
' 116 Au6'�4 18.79 1099.568 854.213 9.8034 109D5
1]7 Sep-14 976 I109.331 864.905 10.6922 11.196 -
I18 Oca14 3.43 1112J62 875.937 11.0317 �:..10916 � .
119 NavI4 0.00 1112.762 88fi.739 10.8018 ]0.305
120 Dec-14 0.00 III2JG2 896.936 10.1975
page 3 of 3
Stream Depletiou Analysis
Gouid Farm
Return Flow Analysis
��. Applegate
Distence from sueam= ft Group,i��
Trznsmissivity= 0 0 spd/ft
SpecifcYield= ��Z
No-FlowBoundary= 8�0 fl November9,2005
Consumed Cumulative Camulat��e Volumeot Volumcof
Cumulative Volume �'olume VOWmeof Depledon Stresm
Time Monlh Pumped Pomped DepleHon This Sup Depletion%
(months) (ao-fQ (ao-R (ac-R) (no-fq (ac-ft
1 1aro-05 0.00 0.000 0.000 0.0000
Z Feb-05 0.00 0.000 0.000 0.0000
7 MarA5 0.00 0.000 0.000 0.��
q Apr-05 0.67 0.668 0.009 0.0095
5 MayA5 13.27 13.937 0.265 0.2555 Year t
b Jun-05 1475 28.fi92 1.878 1.6125
7 Jul-05 10.38 39.074 4.977 3.0995 22.07
g Aug-05 7.52 46.589 8.810 3.8326
9 Sep-05 3.91 50.494 12.755 3.9458
10 Oct-05 2.41 52.907 16.379 3.6237
�� NovA5 0.00 52.907 19.518 3.1366
]2 Dec-OS 0.00 52.907 12.065 2.5475
I; Jen-06 0.00 52.907 24.123 2.0575
14 Feb-06 0.00 52.907 25.832 l."7098
IS Mar-06 0.00 52.907 27.293 1.4608
16 APr-06 0.67 53.574 28.581 1.2877
17 MeY-�6 1327 6b.644 29.978 13967 Yeer 2
IS J�m-06 14.75 81.598 32.626 2.6484
19 luI-06 10.36 91.980 36.G79 4.OSY6 35.65
20 Au6-U6 7.52 99.495 4I397 4.7188
2� Sep06 3.97 103.401 46.174 4.7768
22 OctA6 2.47 105.813 50.5ffi 4•M179
23 Nov-06 0.00 105.813 54.464 3•88T2
24 Dec-06 0.00 105.813 57Jt9 32552
25 Ian-07 0.00 105.813 60.452 2-7326
Z6 Feb-07 0.00 105.813 62.808 2.3555
� 27 Maz-07 0.00 705.813 64.887 2.0791 .
28 Apr-07 0.67 106.481 6G.767 I.8805 �
29 May�07 1327 119.750 66.73J 1.9fi55 Year3
30 Jun-07 14.75 13A.505 71.927 3,1944
31 JulA7 10.38 144.867 76.504 4.5770 42.16
32 AuB-07 7.52 152.402 81.727 5.2226
3} Sep-07 3.91 156.3U7 86.988 5.2G10
34 Oct-07 2.41 158.720 91.86i 4.8732
35 Nav-07 0.00 158.720 96.190 4.3294
36 Dec-07 0.00 158.720 99.875 3.6952
page 1 of 3
Consumed Cumula[ive Cumulativc Volumeof Volumeot
� Cumulauve Volume Volume Volumeot Deple6ou Stream
Time Monch Pumped Pumped Dep�eU°° T6fsStep Deale�ft)s
(momhd (noh) Uc•tt) (ac-it) (ao-ft) f
37 7an-08 0.00 I58.720 103.022 3.1461
18 Feb-08 0.00 156.120 105.774 2.7529
39 MarAB 0.00 158.720 108276 2.4613
40 AprAB 0.87 159387 ll0.484 2.2479
41 May-08 1327 172.657 112.802 23187 Yeer 4
42 Jun-08 14.75 187.412 116.336 3.5341 46.19
43 7ol-0B 10.38 197.793 12L240 4.9036
qq qug-08 7.52 205.309 126.777 5.5367
45 Sep-08 3.91 209.214 132.340 3.Sfi30
46 Oct-08 2.41 211.626 137.503 5.1635
47 Nm-06 O.OD 21 i.626 142.112 4.6086
48 Dec-08 0.00 211.626 146.065 3.9537
49 Jan-09 0.00 211.626 149.470 3.4043
50 Fcb-09 0.00 211.626 152.471 3.OOII
51 Mer-09 0.00 211.626 155.171 2.7000
52 Apr-09 0.67 212.294 157.648 2.4774
53 May-09 13.27 225.563 160.188 2.5794 Year5
54 lun-09 14.75 240.Ji8 163.934 3.7463 4871
55 Jui-09 10.38 250.700 169.042 5.1076
56 Aue-� 7.52 258.215 17a.774 5.7329
57 Scp-09 3.91 262.120 180.526 59517
58 Od-09 2.41 264.533 185.871 5.3450
5g Nov-09 0.00 264.533 190.654 4��83�
60 Dec-09 0.00 264.533 194.776 4.1213
61 1an-10 0.00 264.533 198341 3.5656
G2 Feb�10 0.00 264.533 201.497 3.15G2
63 Maz-10 O.W 264.533 204346 2.8491
64 pp�_�p 0.67 265.200 206.967 2.fi208
65 � MaY-10 1327 278.470 209.b45 2.6773 Yeaz6
66 � Jun-10 1475 293225 213.523 3.8789 r�p.28
67 t��.�p 7p,36 303.606 218.756 5.2350
68 Aug-10 7.52 311.122 224.614 5.8554
69 Sep'10 3.91 315.027 230.484 5.8696
7D Oct-10 2.47 317.439 235.942 5.4583
71 Nm•10 0.00 317.439 240.834 4.8921
72 Dec-10 0.00 117.4J9 245.060 4.2262
73 Jen-Il 0.00 317.439 248.72G 3.6664
74 Feb-II O.OD JI7.439 251.980 3.2530
75 },��.�� 0.00 317.439 254.922 Z•9422
76 Aprvll 0.67 318.107 257.fi32 2.7105
79 �??Y"��._.._ .. 13.27 ...'__3J1_376 260_396_ 2.7634 Ywr7 ......
....... ...._.___ . . .. .
___'...
� - � 7S 1�-11 14J5 346.131 264357 3.9616 . .
79 Jul-11 1�.38 356.513 269.672 53147 5127
80 AuB'1I 7.52 164.028 275.6U4 5.9321
81 Sep'll 3.91 367.933 281.547 5.9432
82 Oc�.l1 2.41 370.346 287.077 5.529I
83 Nov-Il 0.00 37034fi 292.077 4.960J
84 Dec-❑ 0.00 37034G 296.328 4.2915
85 ]an-12 0.00 370346 300.058 3.7294
g6 Feb•12 0.00 37U.346 303371 33116
87 Mar-12 0.00 370.346 306.372 J.0005
86 Apr-12 0.67 371.013 309.138 2.7664
89 MaY'12 13.27 384.283 311.956 2.8173 YearB
90 Jun-12 14.75 399.038 315.969 4.013fi 51.88
91 Jul-12 10.38 4�9.419 32t333 5.3638
92 Augd2 7.52 416.935 327313 5.979H
93 Scp'12 3.97 420.840 333.302 5.9894
94 Q��_�Z Z,q� 423.252 338.876 5.5735
95 Nov-i2 0.00 423.252 743.879 S.OU31
9fi Deo-12 0.00 423152 348.211 4.3325
pege 2 of 3
Consumcd Cumulative Cumuiative Volumeot Volumeof
Cumulative Volumc Volume Volumeot Deplctlon Stream
� Time Maot6 Pumped Pumped Dcpletion ThisStep Deple[fons
(months) (eo-tt) (ec-R) (ao-R) (ao-R) (artt)
q7 Jan-13 0.00 423.252 35I.980 3.7688
98 Feb-13 0.00 423.252 355331 3.3514
99 Maz•13 �.00 423.252 358368 3.0368
100 Apr'13 0.67 423.920 361.170 2.6014
lOl May-U 13.27 437.190 364.021 2.6509 Year 9
102 Jun-13 14.75 451.944 368.067 4.0460
103 Ju1.13 10.38 462326 373.462 5.3950 52.27
104 Aug-13 7.52 469.641 379.471 6.0097
105 Sep•13 3.91 473746 385.489 6A181
106 Oct-13 2.41 476.159 391.090 5.60i1
l07 Nov-13 0.00 476.159 396.I20 5.0296 Stead Sfate Valua
108 Dec-13 0.00 47b.159 400.478 4.3581 . �.3822�-::'
109 Jan-I4 0.00 476.159 404272 3.7975 ,�9.401 �.�:.�..
I10 Feb-14 0.00 476.159 407.647 3.375I .'3.083 �
lil Mar-14 0.00 476.l59 410.706 3.0595 :Z.g�s
112 Apr-14 U.67 476.827 413.529 2.8232 :� :g,894 �. .
li3 MaY'14 1327 490.096 416.401 2.8919 Year10 -��:--9.097�.�: ��
1]q Jun-14 1475 504.851 420.466 4.06fi2 .5456 �
I15 Jul-74 10.38 515.232 425.682 5.4I45 52.51 �:-6.074 �.
ll6 Aug'l4 7.52 522.746 431.910 fiA284 6.062
117 Sep-I4 3.91 526.653 437.947 6.U361 5.661
118 Oct-14 2.41 529.065 443.565 5.6164 5.085
1I9 Novd4 0.00 529.065 446.611 5.0462 4�7
120 Dec-14 0.00 529.065 452.985 4.3740
page J of 3
Appendix B
Case No. 86CW292
Hayseed Ditch
Change in Point of Diversion
. � ", � c
4
DIS^_'RIC: COURT, WATT�2 DIVISIDN NQ. 1, COLORADO
Case No. 86CW292
FIND?NGS_ AND RULING OF TF� REFEREE AND DECRF;E OF TF� WATER COiJRT
CONCL'..RHING TF� APPLICATION FOR CP.ANGE OF WATER RIGHTS OF:
SIEGBIST CDNSTRUCTION CONPANY IN WELD COUNTY
TfiIS CLAIM, an applicaticn for a change of water riqht,
having been filed with the Water Clezk, Water Division No. 1, on
November 19, 1986, and the Referee being fully advised in the
premises, does hereby find:
All notices required by law of the filinq of the application
have been fulfilled, and the Referee has jurisdiction over the
st:bjec� matter of the application and over a11 parties a�fected
the=eby, whether t,`�ey have appeared or not.
Statements of opposition to the apnlication were filed by
St. Vrain & Left Hand Water Consewancy District, Public Se`-vice
Company of Colorado, J 8ar B, Inc. , and Central Colorado Water
Conservancy District and the Grpund Water Management Subdistrict
of the Central Colorado Conse:-vancy District. No otheT state-
ments of opposition have been filed and the time for fili.ng such
stztements has expired.
All matters contained in the application have been reviewed,
and testimony has been taken where such testimony is necessary,
and such corrections made as are indicated by the evidence '
presented.
Applicant is the record owner of a three-fifths (3/5)
undivided interest in the 41.54 c.f.s. of water decreed to the
Hzyseed Ditch out of St. Vrain Creek, as decreed by the Boulder
County Distriet Cou_+-t on ,7une 2, 1882 (Reqister of Actions No.
1620) , with an appropriation date of January 1, 1860.
There have been three prior transPers o� the Hayseed Ditch
wate=. In Case No. W-7551-73, Louis J. and Frances J. Rademacher
claimed to be the owners of a one-fif`.h (1/5) interest in the
Hayseed Ditch water and changed the point of diversion of that
wate= �rom the originally decreed point of diversion to a well.
� In Case No. 79-CW-038, Edwin A. Anderson claimed an interest in
one-fifth (1/5) of the Hayseed Ditch water and changed the point
o£ diversion for thet water from the originally dec:eed point vP
diversion to a new point on st. Vrain Creek. In Case No. 79-CW-
157, J Bar B, Inc. claimed to be the owner of a one-fifth (1/5)
interest in the Hayseed Ditch water and changed the point oP
e\�in&:ul& .
�
' • C
Findings and Ruling o: the Referee
. Case No. B6CW292
Page 2
diversion• for that water from the oriqinally decreed point of
diversion to a new point on St. Vrain Creek. Applicant's
investigation of title documents associated with the lands owned
by the original appropriators of the Hayseed Ditch water reveals
that:
a. The irrigated acreage referred to in the Rademacher
transfer (Case No. W-7551-73) was, at the time the
Hayseed Ditch water was appropriated, owned by William
Dewey who was on� of the original appronriators of the
Hayseed Ditch water.
b. The irigated acreage refe_^_�ed to in the J Bar B
transfer (Case No. 79-CW-157) was, at the time the
Hayseed Ditch water was appropriated, owned by Ira
Lockard who was one of the original appropriators of
the Hayseed Ditch water.
c. Applioant owns land that was, at the time the Hayseed
Ditch water was appropriated, owned by the three
remaining appropriators of the Hayseed Ditch water--
Elisha Dpncan, H.S. Scott, and Jahn Mulverhill.
d. The irrigated'acreaqe referred to in the Anderson
trans�er (Case No. 79-CW-036) was not owned by any, of
the original apnropriators of the Hayseed Ditch water
at the time the Hayseed Ditch water was appropriated,
and no document transfarring any af the originzlly
appropriated Hayseed Ditch water to that land was
found.
Applicant and its predecessors-in-i.nterest have histo=ically �
diverted their interest in the Aayseed Ditch watez right during
the months of May through September to irriqate approximately 50 \
acres adjacent to and lying nor`..h of St. Vrain Creek in the Sw
1/4 of Section 35, Township 3 North, Range 68 West of the 6th
P.M.�, and approximately 90 acres azjacent to and lying nor��h of
St. Vrain Creak in the SE 1/4 of Section 35 and the NW 1/4 of the
SW 1/4 of Section 36, Township 3 Nosth, Range 68 West of the 6th
P.M. The water historically consumed by such irrigation is 150
acre feet per year.
Applicant seeks to chanqe the poi.nt of diversion for 4.0
c.f.s. of its interest in the Hayseed Ditch water right. The '
change is from one surface point of diversion to alternata
surface points of diversion, both located downstream oP the
originally decreed point of diversion.
e\fin&rul& •
. (
Findings and Ruling of the Referee
Case No. 86CW292
� Page 3
All of Applicant's three-fifths (3/5) interest in said water
right, except the 4 . 0 c.f.s. which is changed herei.n is to be
abandoned to the stream.
There are no water rights with decreed points of diversion
between the original point of diversion decreed for the Hayseed
Ditch and the points of diversion approved here3n.
If the c.�ange of water right sought in the application is
administered in accordance with the protective conditions
contained in this Ruling, such change will not injuriously affect
any owner of or person entitled to use water under a vested water
right oz a decreed conditional water right.
WHEREFORE, IT IS TI3� RIILING OF '�'HE WATEA REFEREE:
l. Name and Address of ApDlicant:
Siegrist Construction Company
c/o Robert�L. Siegrist, President
6999 York Streat
Denver, Colorado 80229-7399
2. Name of structure:
Hayseed Ditch
3 . Or,�cina??v becreed Point of Diversion:
At a point on St. Vrain Creek i.n Section 34, Township 3
North, Range 68 west of the 6th P.M. , Weld County,
Colorado.
4. Source oP Water:
5t. Vrain C.eek, tributary to the South Pla�te River.
5. Amount of Water:
4 . 0 c.f.s.
e\fin&rul�
- ,
Findings and Ruling of the RePe:ee
Case No. 86CW292
Page 4
6. Chanae or Transfer:
a. Applicant may divert 4. 0 c. f.s. of tjie flayseed Ditch
water right decreed by the Boulder County District
Court on June 2, 18a2 (Register of Actions No. 1620) ,
with an appropriation date of January J., 1860, at the
following alternate points of diversion:
(1) Siegrist Dive�sion No. 1--to be located at a point
an the north bank of St. Vrain Creek apnroximately
40 feet north and 200 £eet east of the Southwes�
corner of Section 35, Township 3 Nort.h, Ranqe 68
West of the 6th P.M. , Weld County, Colorado; or
(Z) Siegrist Diversion No. 2--to be located at a po=nt
on the nort.h bank of St. Vrain C�eek approximate?y
600 feet nor`.h of the south 1/4 corner of Section
35, Township 3 Nor`�.h, Range 68 West o� the 6th
P.M. , Weld County, Colorado.
b. The subject water right may be diverted at any
combination of the alternate points of diversion during
the months of May through September to irrigate up to
50 acres adjacent to and lying nor`,.h of St. Vrain Creek
in the SW 1/4 of Section 35, Township 3 North, Range 68
West of the 6th P.M. , and up to 90 aeres adjaeent to
and lying nor},.h of St. Vrain Creek in the S� 1/4 of '
Section 35' and the NW 1/4 O� the SW 1/4 of Section 36,
Township 3 Nor`..h, Range 68 West of .t'ie fith P.M. , Sveld
� County, Coloradot so long as: (a) water is available
at the originally decreed point of diversion, (b) the
� wzter so div�+-ted does not exceed 300 acre feet per
year, and (c) the water consumed ay suc� i:-iga�ioa �
does not exceed 150 acre feet per year.
7. -�otective C�nditions:
The change in points of dive:sion granted herein shall be
subject to the following conditions:
a. The limitations descri.bed in,paragraph 6 hereof.
b. Applicant may divert no more than 4 . o c.f.s. of the
Hayseed Ditch water riqht at the points of diversion \
desczibed in parar,raph 6 hereof.
e\fin&rul�
' ;
Findings and Ruling of the Referee
Case No. 86CW292
Page 5
c. -•• All but 4. 0 c.f.s. of Applicant's interest in the
Sayseed Ditch water right is hereby abandoned to the
stream.
d. Applicant shall install and maintain sueh measuring
devices as the Division Engineer may reasonal�ly require
for administration of Applicant's interest zn the
Hayseed Ditch water right.
e . The Re�eree hereby rules that the change of point of
diversion anproved herein, if administered in accordance
wi`.h the conditions set for`�h herein, meets the standards
prescribed in C.R.5. 4 37-92-305 (3) , and will not
injuriously affec� any owner of or any person entitled to
use water under any vested water right or decreed
conditional water right.
9. Pursuant to C.R.5. @ 37-92-304 (6) , the change of water right
apnroved herein shall be subject to reconsideration by the
water judge on the question of injury to vested rights of
others caused by the approved change of water rights for a
period of two (2) years after the water judge signs this
Ruling. All other issues adjudicated shall be res iudicata
as a result of this Ruling, and shall not be subject ta
relitigation in the future. In order to invoke the water
judge' s reconsidaration, any pe�san•' must file a petition
with notice to all other pa�ies alleging the speciPic
groun�s and extent of the injury claimed. In any hearing to
be held an such petition, the objector invoking the water
• judce's recansideration shall have the burden of going
forward wi`�.h proof of inj�*y but the Applieant shall have
the ultimate burden of proof regarding such inju�*-y or non-
i.njury.
-DATED this 13th day of Julv , 1988.
� �
�_.C��d il'Yl� /
d S. Liesman
Wat r Referee
Water Division No. 1
State of Colorado
e\fin&rul&
�
Findings and Rulinq of the Referee
Case No. 86CW292
" Page 6
'!'H.E COIIRT-�� FIND: NO PROTEST RAS FILED IN TSIS MATTER.
'!'HE FOREGOING RIIISNG IS CONFIRPfED AHD APPROVED, AND IS HEREHY
� MADE TF� JIIDGMEHT AND DECREE OF TSIS COURT. ;
DATED: August 24, 1988
/��
' ii� ��
. �� �y.___�
'�-Robert A. Behzman
Water Judqe .
Wates Division No. 1
State of Colorado
APPROVED AS TO FORM AND CONTENT:
VRANESH & RAISCH LIND, LAWR=NCE & OTTENHOFF
� �
' �''1/.� • f-�'��""a"`, - !._ti�. I.kLLtK'CG� .
Eug e J. Riordan (�11605) Kim R. Lawrence (u8366)
P.OU Box 871 1011 Eleventh Avenue
Boulda�, CO 80306 . Greeley, CO 80631
, (303) 443-6151 (3D3) 356-9150
ATTORNEYS FOR APPLICANT ATTORNEYS FOR OBJECTOR,
SIEGRIST CONSTRIICTION COMPANY' CENTRAL COLORADO S�7ATER
' CONSERVANCY DISTRICT AIZD
. • .GROIIND. AATIIt MANAGEMENT
_ SIIBDISTRICT OF T� CENTRAI+
, COIARADO CONSERVANCY
� DISTRICT
� -
� - . :r,.. � � � , ' . � .""..-rP..::...s+..
..' -'. ' w.4. }:v�� _ .. . L�:�
-'1n .-0-' . ' ,'h' �`�f.. - . ..•!:� . . . ..._ ��yY�; . .... ' . . .
. ' .-,�.i. ....'.Y- ,.�;'l.. v
e\�in&rul& ' . •
Findings and Ruling of the Reteree
Case No. 86CW292 .
. Page ?
GRATIT, SERNARD & LYONS OSES SON
on' c
� l �. � � ,�
Je'fErey J. IC�hn (u6894) R�ert� L. Beeba; (*7396)
I�.P, Eox 97H� V onica A. Sperling
, �ongmont, CO 80502-0978 ($14310) .
(f70$') �76-9900 (Lonqmont) P.O. Box 1440
�(303) 751-5506 (Denver) Boulder, CO 80306
(303) 443-8782
ATTQRNEYS FOR OSJECTOR, ST. VRAIN ATTORNEYS FOR 0B7ECTOR,
AND LEFT HAHD WATER CONSERVANCY J SAR B, INC.
DISTRICT
REI.LY, STANSFIELD & 0'DONNELL
\ . (1-/
Timo J. F a an ("6356)
1' +�
Wil am J. ��(A15966) .
5500-15th S et, Suite 900
Denver,. CO 80202 ,
(303) 825-3534
ATTORNEY FOR OHJECTOR,
PIISLIC SERVICE COMPANY OF COIARADO
e\fin&rul&
Append'u C
Well Permit Application
�orm No. COLORADO�IVISION OF WATER RESOURCES Forotficlal Use Only
,y�g_27 DEPARTMENT OF NATURAL RESOURCES
8/2003 7393 Shertoan St.,Rm.818,Denver,Colorado 80203
Ph0ne: (303)866-3581
REVIEW INSTRUCTIONS PRIOR TO COMPLETING FORM
GRAVEL WELL PERMIT APPLICATION
t. 7YPE OF PERMIT
❑ NEW PIT(S)
X❑ PIT(S) EXIST,CONSTRUCTED AFTER DEC.31, 1980
2. APPLICANT INFORMATION
NAME(S) Carma Development LTD
Mafling Address 9110 E. Nichols Avenue Suite #180
City,St.,Zip Englewaod CO 80112
Phone (303) 706-9451
3. CONSULTANT/ATTORNEYIOPERATORCONTACT(Ifdlfferemthenf2) pITNAME
NAME(S) Applegate Group Inc
Mailing Address 1499 West 120th Avenue DMG No. M-82-015
City,St.,Zip Denver CO 80234
Phone (303) 452-6611 -
4. �ENERAL LOCATION OF PIT(Sl:
1/4 1/4, Sec. 35 Twp. 3 0 N. ❑ 5., Range 68 ❑ E. Ox W. 6th P.M.
5. Estimated maximum water surface to be exposed: 109.4 Acre. Number of Pits 3
Estimated depth of pit(s) 30 Ft. Estimated depih to groundwater 5 Ft
7. Estimated date to expose groundwater N/A ; to complete mining N/A
8. ATTACHMENTS: (Check which have been attached.)
(a) � Scaled map of pit area with renge,township,§ion clearly identified(REQUIRED).
(b) ❑ Copy of the reclamation permlt,if applicable.
(c) ❑ Copy of pre 1l15/89 water conservancy dist. Or water user assoc.augmentation agreement, if applicable
(d) ❑ Copy of proposed substitute water plan or augmentation plan appllcation,if appllcable.
(e) ❑ Copy of court approved augmenfation plan,if applicable. Case No.
(� � Other
9. Detalled description of any use,other than evaporation,and method of diversion, rate of diversion,and annual amount of diversion
of any water wlthdrawn from the pond.
10. I (we)have read the statements made herein and know the contents thereof,and that they are true to my(our)knowledge.
[Pursuant to Section 24-4-104(13)(a) C.R.S.,the making of false staiements herein constitutes pery'ury in the second degree and
Is unishable as a class 1 misdemeanor. Date
Name/Title(P�ease type or print) Signature
� /c'l, a G2�G �, r 9 aa .�f
For Official Use Only /�1u�y�
Court Case No. �iv Co.—WD Basin— MD-- Use--
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5TATE OF COLORADO �
OFFICE OF THE STATE ENGINEER RyoF �°�o� I
�E����T�D °
Division of Water Resources %< ',
�Departmen[of Namral Resources JU� � 2��6 ''�.
4 •
� 1313 Sherman Stree[,Room 81 B • w ',
Denver,Cobrado 80203 `1e�b� �'��.
Phone(303)8663581 B�': .,,_„__ ��,
FAX(303)866-3589 Bill Owens ��I,
www.watecstate.co.us May 31, 2��6 Gwenwr '��..
Russell George .
Executive Dire[tor ,.
Donald E. Frick Hal D.Simpson,P.E.
SG[e Engineer
Applegate Grou� Inc. I
1499 West 120' Avenue, Suite 200 '
Denver, CO 80234-2759
Re: Del Camino Pit (a.k.a. Riverdance Subdivision), Substitute Water Siipoly Plan
DMG File No. NI-1982-�15
Section 35, T3N, R68W, 6`h P.M. !,
Water Division 1, Water District 5 'i
Approval Period: January 1, 2006 through October 31, 2006 (December 31, 2006 if extended)
Contact Phone number for Mr. Donald E. Frick: 303-452-6611
Dear Mr. Frick: '
We have received your letter of November 9, 2005, requesting renewal and amendment of
the above referenced substitute water supply plan to cover depletions caused by an existing '
gravel mining operation operated by Carma Development, LTD ("ApplicanY'). The required fee of ',
$217.00 for the renewal of this substitute water supply plan ("SWSP") has been submitted (receipt '
no. 545737B). ,
Plan Operation
This plan seeks to replace depletions resulting from mining operations at the Del '
Camino gravel pit for 2006. The site is generally located in the S1/2 of Section 35, T3N, R68W.
Mining and reclamation at the site has been completed leaving three unlined lakes at the site.
This SWSP seeks to replace the depletions that result due to evaporation from the surface area
exposed in the unliried lakes.
The Applicant intends to build a housing development encompassing the site. As part of
the development plan the total surtace area of the existing ponds will be reduced creating two '
separate lakes that will be lined with a slurry wall. The lining of the ponds will likely occur from
April 2006 through July 2006, however, for the purposes of this plan the site will be presumed to
be unlined during the entire plan period.
Depletions
The ground water exposed at this site is estimated to be 109.4 acres with an annual
depletion of 280.02 acre-feet. All ground water at the site was exposed after December 31,
1980. Each pond is located within 100 feet of the St. Vrain River and therefore, the depletions
have been assumed to be instantaneous. ',
Mr. Donald E. Frick
' May 31, 2006
Page 2
Replacements
The proposed source of replacement for this pit is 0.75 shares of Rural Ditch, a 3/5'�5
interest in the Hayseed Ditch and 290 units of C-BT water leased from the Little Thompson
Water District ("LTWD").
The 0.75 shares of Rural Ditch is a portion of 5 shares that were historically used to
irrigate 168 acres. Historically the 168 acres supported pasture grass. Assuming a 10% ditch
loss and a 55% irrigation efficiency, the dry-year consumptive use of the 5 shares of Rural Ditch
was determined to be 208.09 acre-feet. Therefore, the prorata consumptive use of the 0.75
shares of Rural Ditch claimed under this plan is 31.2 acre-feet.
The Applicant has leased 290 units of Colorado Big Thompson Project ("CBT units") from
the LTWD. Use of CBT units for replacement purposes must be in accordance with the May 2005
Interim Rule of the Northem Colorado Water Conservancy District ("Northern"). In accordance
with Northem's Interim Rule, the net yield of CBT units (after conveyance shrink has been
deducted) that may be used to offset depletions is defined as fifry percent (50%) of the net CBT
units delivered from a domestic account, such as LTWD. Therefore, after accounting for an 80%
quota and 50% consumptive use, the amount of water available for replacement under this plan is
116 acre-feet.
The point of diversion for the applicanYs 3/5"15 interest in the Hayseed Ditch was changed
in case no. 86CW292. As part of that case, the historical diversions and historical consumptive
use of the 3/5'"s interest was determined to be 300 acre-feet and 150 acre-feet, respectively. The
decree entered in the case also limits the use of the water right to a period from May through
September. The decreed aiternate points of diversion for water right are adjacent to the site in
section 35. The applicanYs 3/5'� interest in the Hayseed Ditch will be left in the river at the
decreed aiternate points of diversion.
A monthly breakdown of depletions and replacements is shown in the attached Tabie No.
4 that was submitted with your report.
Conditions of Approval
I approve the proposed substitute water supply plan in acc:ordance with Section 37-90-
137(11), C.R.S., subject to the following conditions:
1. This SWSP shall be valid for the period of January 1, 2006 through October 31, 2006,
unless otherwise revoked, modified, or superceded by decree. This plan will be
extended until December 31, 2006 if the applicant submits a letter from Northern
approving use of the CBT units for water year 2007. If this plan will not be made
absolute by a water court action by the plan's expiration date, a renewal request must
be submitted to this office with the statutory fee by September 7, 2006 (November 1,
2006 if extended).
2. A new well permit must be obtained for the gravel pit in accordance with §37-90-137(2)
' and (11), C.R.S. Any application wiil be evaluated subsequent to approval of this plan.
The provisions of§37-90-137(2) prohibit the issuance of a permit for a well to be located
within 600 feet of any existing well, unless the State Engineer finds that circumstances
Mr. Donald E. Frick ;
' May 31, 2006 �
Page 3 '
so warrant after a hearing in accordance with the procedural rules in 2CCR402-5. The
hearing will be waived if you are able to obtain statements from the owners of all wells
within 600 feet, verifying that they have no objection to your use of the proposed well.
Should a new well permit be denied for reasons of the 600-foot spacing, or any other
legitimate reason, approvai of this amendment will be canceled.
3. The total area of exposed pond surface in 2006 shall not exceed 109.4 acres and total
consumptive use shall not exceed 280.02 acre-feet due to evaporative losses. Should
the total consumption at the pit exceed these amounts prior to the expiration date of this
plan, an amendment needs to be filed with this office.
4. Approval of this plan is for the purposes as stated herein. Any additional uses of this
water must first be approved by this office.
5. The Water Commissioner responsible for the administration of this plan is Mr. Scott
Edgar, 1735 Dolores River Drive, Windsor, CO 80550, phone number (970) 686-0628.
The appiicant shall maintain daily records of all diversions, replacements, and the
amount of water used for each particular purpose. The applicant shall provide a report of
these records to the division engineer and the water commissioner on a monthly basis
on a form approved by them. The accounting must be submitted within thirty (30)
calendar days of the end of the month for which the accounting is being made.
6. The Applicant shall follow the accounting protocol as referenced in the attached
document for the operation of this SWSP.
7. All diversions shall be measured in a manner acceptable to the division engineer. The
Applicant shall install and maintain such measuring devices as required by the division
engineer for operation of this SW SP.
8. AII releases of replacement water must be sufficient to cover all out of priority depletions
and be made under the direction and/or approval of the.water commissionec The. .
replacement may be aggregated to maximize beneficial use. The water commissioner
and/or division engineer shall determine the rate and timing of an aggregated release.
9. The name, mailing address, and phone number of the contact person who will be
responsible for operation and accounting of this plan must be provided on the
accounting forms to the division engineer and water commissioner.
10.The approval of this substitute water supply plan does not relieve the Applicant and/or
landowner of the requirement to obtain a Water Court decree approving a permanent
plan for augmentation or mitigation to ensure the permanent replacement of all
depletions, including long-term evaporation losses and lagged depletions after gravel
mining operations have ceased. If reclamation of the mine site will produce a
permanent water surface exposing groundwater to evaporation, an application for a ptan
for augmentation must be filed with the Division 1 Water. If a lined pond results after
reclamation, repiacement of lagged depletions shall continue until there is no longer an
effect on stream flow.
Mr. Donald E. Frick
May 31, 2006
Page 4
11. This substitute water supply plan may be revoked or modified at any time should it be
determined that injury to other water rights has or will occur as a result of this plan.
12. Shouid this substitute water supply plan expire without renewai or be revoked prior to
adjudication of a permanent plan for augmentation, all use of water at the pit, must
cease immediately.
13. The decision of the state engineer shall have no precedential or evidentiary force, shall
not create any presumptions, shift the burden of proof, or serve as a defense in any
water court case or any other legal action that may be initiated concerni�g the substitute
water supply pian. This decision shall not bind the State Engineer to act in a similar
manner in any other applications involving other plans or in any proposed renewal of this
plan,:and shall not imply concurrence with any findings of fact or conclusions of Iaw
contained herein, or with the engineering methodologies used by the Applicant.
Should you have any questions, please contact Joanna Williams of this office or Mr. Scott
CuthbeRson of our Division o�ce in Greeley at (970) 352-0742.
Sincerely,
��'.���,��
Kevin G. Rein, P.E.
Chief of Water Supply
Attachments: Table 4 and Accounting Protocol
KGR/JMW
cc: Scott Cuthbertson, Assistant Division Engineer
Scott Edgar,WaterCommissioner, Water District 5
Division of Minerals and Geology
AUGMENTATION PLAN ACCOUNTING PROTOCOL '
Division of Water Resources ;
Division One — Greeley
This document addresses the accounting information and format that should be followed
for water court approved augmentation plans. Decreed augmentation plan requirements
take precedence in the event of a conflict between the requirements in the decree and
this protocol.
1. The accounting must be done using software such as Excel or Access, ,
preferably Excel. During the initial review of the accounting and/or when
requested, the applicant will be required to submit the actual Excel file used to
perform the accounting so that data relationships and formulas can be confirmed. ,
2. Accounting for wells that are decreed as altemate points of diversion to a surface ;
water right must be done on a daily basis in order to substantiate when the well is
in or out of priority. For the purposes of augmentation plan accounting only, the
daily in priority alternate point well diversions may simply be shown as zero. The
remaining out of priority daily diversions should then be used to determine the ,
delayed depletions associated with the well operation. ,
3. Accounting for wells that are not alternate points of diversion to a surface water
right may be done on either a daily or monthly basis. If the monthly basis is used,
the volume of water diverted for the entire month should be prorated to the
number of days in the month and shown as equal daily diversions.
4. Accounting reports must be submitted electronically to the division engineer at
Div1 Accountinq(a�state.co.us within 30 days of the end of the month for which the
accounting is being submitted.
5. Please use the following naming convention for all files submitted pursuant to
item 4: "PlanName Month Year Version". As an example, the initial submission
for the XYZ augmentation plan for July 2004 would be named "XYZ July 2004
v1.xls". If this accounting is then amended, the amended file submitted would be
named "XYZ July 2004 v2.xls", etc. Please put the name of the fiie in the
subject line of the email.
6. All diversion information for both welis and recharge structures must be reported
using the WDID for the structure, at a minimum. Other information such as well
name, permit number, etc. can also be included based on the reporter's
preference as a cross check to the WDID All wells must be either decreed by
the Water Court or permitted by the Division of Water Resources.
Unregistered wells for which there is no decree cannot, in the opinion of the
Division Engineer, be effectively administered because of the need to know the
location, allowabie diversion rate and use of the weil; information that is only
available from the decree or permitting process.
7. The accounting should have a single "Contact Information" sheet that shows
the contact information for each well. This sheet should also contain the contact
information of the person resoonsible for submittina the accountinq.
8. The accounting shouid have a single table showing "Past Pumping Depletions"
expected due to previous operations of all the wells covered by the plan, itemized
by well.
Augmentation Plan Accounting Protocol - Revised May 2, 2006
9. All well diversions should be input into a single "Pumping Information"
' worksheet. The sheet should show the volume diverted from each well and the
' amount of that diversion made as an APOD on a daily basis. The resufting non-
' APOD diversion volume in the "Pumping Information"worksheet should be the
source of pumping information for all other worksheets that use that data such as
- the depletion modeling input table, any summary of operations sheet, etc. The
"Pumping Information"worksheet is the ONLY place new well diversion
I data is input into the accounting.
' 10.All "Recharge Information input data should be entered on a single worksheet
�� •
', and broken down to show the resulting credit to each well.
�i 11.A single "Reservoir Releases" sheet should show the releases made and the
credit attributable to each well. Data such as transit losses, reservoir share yield,
', etc. should be shown for the current month. The accounting must be able to
! adjust factors such as share yield and trensit loss on a month-by-month basis
! and must not simply rely on the initial beginning of season yield estimate, etc.
i 12. If there are other categories of reptacement water used in the plan such as
j "Fully Consumable EffluenY', "Changed Irrigation Right Credits" °Ditch
Bypass Credits , Augmentation Wells", etc., each of these categories should
�� «
I have a single data input sheet that breaks the information down to show the
; credit due each well as a result of the subject replacement water. (In the specific
case of the augmentation wells, the input volume would simply reference the
"Pumping Information" sheet, which is to be the sole source of well diversion
data.)
' 13.A"Summary Information sheet should show the depletions, associated credits
,�
' and net impact on the river of each well for the subject month. Weils with
depletions that impact the same location of the river may be grouped with
, accounting submitted for the entire group. For instance, accounting may be
submitted on a farm by farm basis, etc., with the provision discussed above
� regarding altemate points of diversion wells.
14.The accounting should contain any other sheet necessary to show how the input
data are used to determine the depletions and recharge credits for each well,
' such as AWAS/SDF program input table and output table, etc.
Augmentation Plan Accounting Protocol - Revised May 2, 2006
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Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southern Part R067BY042CO
United States Department of Agriculture
Natural Resources Conservation Service
Ecological Site Description
Wyomin
Site Type: Rangeland Neb a5k
Site Name: Clayey 67
Site ID: R0676Y042CO
Major Land Resource Area: 67B — Central High Plains, Southern Part
Physiographic Features K 5�
This site typically occurs on gently sloping terraces, broad plains, and c i �aao
moderately sloping hills. Some areas are structurally influenced by the
presence of shale bedrock within 60 inches of the soil surface.
Landform: terrace, hill, plain Aspect: N/A
Minimum Maximum
Elevation (feet): 3800 5600
Slope (percent): 0 9
Water Table Depth (inches): 60 60
Flooding:
Frequency: none none
Duration: none none
Ponding:
Depth (inches): 0 0
Frequency: none none
Duration: none none
Runoff Class: medium very high
Climatic Features
The mean average annual precipitation varies from 12 to 16 inches per year depending on location
and ranges from less than 8 inches to over 20 inches per year. Approximately 75 percent of the
annual precipitation occurs during the growing season from mid-April to late-September. Snowfall can
vary greatly from year to year but averages 35 to 45 inches per year. Winds are estimated to average
about 9 miles per hour annually, ranging from 10 miles per hour during the spring to 9 miles per hour
during late summer. Daytime winds are generally stronger than nighttime and occasional strong
storms may bring periods of high winds with gusts to more than 90 miles per hour.
The average length of the growing season is 142 days, but varies from 129 to 154 days. The average
date of first frost in the fall is September 28, and the last frost in the spring is about May 9. July is the
hottest month and December and January are the coldest. It is not uncommon for the temperature to
exceed 100 degrees F during the summer. Summer humidity is low and evaporation is high. The
winters are characterized with frequent northerly winds, producing severe cold with temperatures
dropping to -35 degrees F or lower.
Technical Guide USDA NRCS
Section IIE 1 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southem Part R067BY042CO
Growth of native cool season plants begins about March 15 and continues to about June15. Native
warm season plants begin growth about May 15 and continue to about August 15. Regrowth of cool
season plants occurs in September and October of most years, depending on moisture.
Minimum Maximum
Frost-free period (days): 129 154
Freeze-free period (days): 151 178
Mean Annual Precipitation (inches): 12 16
Average Monthly Precipitation (inches) and Temperature (°F):
Preci . Min. Preci . Max Tem . Min. Tem . Max.
Janua 0.32 0.36 12.0 45.1
Februa 0.26 0.38 15.9 50.9
March 0.83 0.87 22.3 58.9
A ril 1.28 1.38 30.1 69.1
Ma 2.32 2.49 39.9 78.0
June 1.93 2.57 49.0 88.7
Jul 1.42 2.31 55.0 93.9
Au ust 1.07 2.38 53.5 91.9
Se tember 1.02 1.40 43.8 83.8
October 0.89 1.00 32.5 72.9
November 0.52 0.53 20.9 57.4
December 0.34 0.37 11.9 46.9
Climate Stations Period
Station ID Location or Name From To
CO0945 Bri sdale 1948 2000
CO4076 Holi 1918 2000
CO9147 Windsor 1948 1990
For local climate stations that may be more representative, refer to http://www.wcc.nres.usda.gov.
Influencing Water Features
Wetland Description: Svstem Subsystem Class Sub-class
None None None None None
Stream Type: None
Technical Guide USDA NRCS
Section IIE 2 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southem Part R067BY042CO
Representative Soil Features
The soils of this site are moderately deep to very deep, well drained, and slowly to moderately siowly
permeable. These soils occur on terraces, hills, and plains. They formed in alluvium and/or slope
alluvium derived primarily from shale. The moderately deep soils formed in slope alluvium over
residuum derived from shale. The available water capacity is low for moderately deep soils to
moderate for very deep soils. The soil surface layer is typically 2 to 20 inches thick and is clay loam,
clay, or silty clay. The pH ranges from slightly to strongly alkaline. The clayey subsoil restricts water
movement. The soil moisture regime is aridic ustic in the moister areas and ustic aridic in the drier
areas. The soil temperature regime is mesic.
The Historical Climax Plant Community (HCPC) should exhibit slight to no evidence of rills, wind
scoured areas or pedestaled plants. Water flow paths, if any, are broken, irregular in appearance or
discontinuous with numerous debris dams or vegetative barriers. The soil surface is stable and intact.
Major soil series correlated to this ecological site include: Briggsdale, Campo (clay loam), Colombo,
Dalcono, Heldt, Kutch, Limon, Manzanola, Nunn, Rago, Renohill, and Razor.
Other soil series that have been correlated to this site include: none
Parent Material Kind: slope alluvium and/or alluvium over residuum
Parent Material Origin: shate, clayey
Surface Te�ure: clay loam, clay, silty clay
Surface Texture Modifier: none
Subsurface Texture Group: clayey
SurFace Fragments 5 3" (% Cover): 0
Surface Fragments > 3" (%Cover): 0
Subsurface Fragments≤3" (% Volume): 0-15
Subsurface Fragments > 3" (% Volume): 0
Minimum Maximum
Drainage Class: well well
Permeability Class: slow moderate slow
Depth (inches): 20 80
Electrical Conductivity(mmhos/cm)*: 0 4
Sodium Absorption Ratio*: 0 0
Soil Reaction (1:1 Water)*: 7.4 9.0
Available Water Capacity(inches)*: 5 8
Calcium Carbonate Equivalent (percent)*: 1 15
'These attributes represent 0-40 inches in depth or to the first restrictive layer.
Technical Guide USDA NRCS
Sectian IIE 3 Rev. 3/04
Site Type: Rangeland C�YeY
MLRA: 67B - Central High Plains, Southem Part R067BY042CO
Plant Communities
Ecological Dynamics of the Site:
Deterioration of this site, due to continuous grazing without adequate recovery periods following each
grazing occurrence, will cause biue grama and buffalograss to increase and eventuaily become sod
bound. Cool season grasses such as green needlegrass and western wheatgrass will decrease in
frequency and production as well as key shrubs such as fourwing saitbush and winterfat. American
vetch and other highly palatable forbs will decrease also. Red threeawn, annuals and bare ground
will increase under heavy continuous grazing. Much of this ecological site has been tilled and used
for crop production.
The historic climax plant community (description foilows the plant community diagram) has been
determined by study of rangeland relic areas, areas protected from excessive disturbance, seasonal
use pastures, short durationl/time controlled grazing and historical accounts.
The following diagram illustrates the common plant communities that can occur on the site and the
transition pathways (arrows) among communities. Bold lines surrounding each plant community or
communities represent ecological thresholds. The ecological processes are discussed in more detail
in the plant community descriptions following the diagram.
Plant Communities and Transitional Pathways
CG LTPG Seeded
BlueGramal' BlueGrama/Buffala Rangeland -
Buffalograss grass Sod with
8od Cool Season and
� �:�� LTPG �Shruti Remnants �
RS CG
PG CG
RS Go-back Land�
Western Wheatgress
Blue Grama
�Green Needlegrass Tilled and
.Founving Saltbush Abandoned
(HCPC)
� NU, NF PG '4oy VLTPG
Community
1owPIaM.Density,�� I Tilledand
� Excessive.Litter iAbandoned
Eroded (Go-back Land)
LTPG
HCG, RS
Red Threeawn, ED
Annuals,
Bare Ground Eroded Seeded
Rangeland
CG-continuous grazing without adequate recovery opportunity, ED-excessive
defoliation, HCG-heary continuous grazing, HCPC- Historic Climax Plant
Community, LTPG-long term prescribed grazing (>40 yrs), NF-no fre,
NU-non-use, PG-prescribed grazing with adequate recovery period,
RS-range seeding,VLTPG-very long term prescribed grazing(>80 yrs)
Technical Guide USDA NRCS
Section IIE 4 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Cenual High Plains, Southern Part R067BY042CO
Plant Community Composition and Group Annual Production
Westem Wheatgrass,Blue Groma,Green
Neadla ross Fourwin Saltbush HCPC
COMMONIGROUP NAME SCIENTIFIC NAME SYMBOL Group IbsJacre %Comp
GRASSES$':GRASSLIKES � 1 J -900 7 -90
western wheat 2ss Pasco rum smithii PASM 1 350�400 35-40
blue rama Bouteloua racilis BOGR2 1 200�300 20-30
reen needle rass Nassella viridula NAVI4 1 100�200 10�20
buffalo rass Buchlce da loides BUDA 1 � 20�50 2 �5
alkali sapton S robolus airoides . SPAI 1 0-30 0�3
bottlebrush s uirreltail EI mus el moides ss .el moides ELELE 1 0�30 0�3
sideoats rama Bouteloua curti endula BOCU 1 0�30 0�3
alleta south Pleura his'amesii PWA 1 0�20 0�2
Indian rice rass Achnatherum h menoides ACHY 1 0�10 0-1
inland salt rass south Distichlis s icata DISP 1 0�10 0-1
rairie'une rass Kceleria macrantha KOMA 1 0�10 0�1
red threeawn Anstida u urea var.lon iseta ARPUL 1 0�10 0�1
sand dro seed S robolus tantlrus SPCR 1 0�10 0�1
tall dro seed S robolus com ositus vac com situs SPCOC2 1 0-10 0�1
sun sed e Carex ino s ss .helio hila CAINH2 1 10�40 1 �4
needleleaf sed e Carex duriuscula CADU6 1 0�20 0-2
other native 2sses 2GP 1 0�30 0 �3
FORBS � .2 �� :.50::150 �5�-15 �
Amencan vetch Vicia amenrana VIAM 2 30�70 3 �7
u le raine clover Dalea u urea var. ur urea DAPUP 2 10�30 1 �3
scarlet lobemallow S haeralcea coccinea SPCO 2 10�30 1 �3
dotted a eather Liatris unciata LIPU 2 10�20 1 �2
blanketFlower Gaillardia innatlfda GAPI 2 0-10 0�1
Fremont oldenweed Oono sis foliosa OOFOF 2 0�10 0-1
hai oldaster Heterotheca villosa HEVI4 2 0�10 0-1
Louisiana sa ewort Artemisia ludoviciana ARLU 2 0�10 0 �1
lains bahia Picradenio sis o ositifolia PIOP 2 0�10 0 �1
rairie sunflower Helianthus tiolaris HEPE 2 0�10 0-1
rush skeleton lant L odesmia'uncea LYJU 2 0-10 0�1
scarlet aure Gaura coccinea GACO5 2 0�10 0�1
silk c eed O ro is sericea OXSE 2 0-10 0�1
silk so hora So hora nuttalliana SONU 2 0-10 0�1
slimflower scu ea Psorelidium tenuiFlorum PSTE5 2 0-10 0-1
Mro rooved milkvetch Astra alus bisulcatus ASBI2 2 0�10 0�1
u ri ht rairie coneflower Ratibida columnifera RACO3 2 0-10 0�t
wooll Indianwheat Planta o ata onica PLPA2 2 0�10 0�i
wooll locoweed Astra alus mollissimus ASMO7 2 0�10 0-1
other native forbs 2FP 2 70�50 1 -5
SHRUBS ��� � 3 50 -150 �5 •�15
fourwin saltbush Atri lex canescens ATCA2 3 50 �100 5�10
winterfat Krascheninnikovia lanata KRLA2 3 20�50 2 -5
frin ed sa ebrush Artemisia fri ida ARFR4 3 0-20 0�2
broom snakeweed Gutierrezia sarothrae GUSA2 3 0�10 0�1
reen lume rabbitbrush Encamena nauseosa ss .nauseosa var. labrata ERNAG 3 0�10 0�1
ur le incushion Escobaria vivi ara var.vivi are ESVIV 3 0�10 0�1
lains rickl ear O untia ol acantha OPPO 3 0�10 0-1
ot er na rve s ru s
Mnual Protluctlon 16sJaere LOW �RV' HIGH
GRASSES 8 GRASS-UKES 41 � 800 �1290
FORBS 45� 10 -1
SHRUBS 45� 100 -1
TREES
TOTAL
rn�slislo(p1arO5aNM&rrelatrveqopoNo�aare0ase0onnearnomialyears. Flix0ulqnlnapeaesmmposNonanOrelatrvepmGupionmaydureeM1omyaarmyaxaepeMemupon
preoD�a�or otlrer tlimatic facmrs.'RV=represema�ire vaWa or annual D��ab^o�a mma�or reoresemaYve year.
Technical Guide USDA NRCS
Section IIE 5 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southern Part R067BY042CO
Plant Community Narratives
Following are the narratives for each of the described plant communities. These plant communities
may not represent every possibility, but they probably are the most prevalent and repeatable plant
communities. The plant composition table shown above has been developed from the best available
knowledge at the time of this revision. As more data is collected, some of these plant communities
may be revised or removed, and new ones may be added. None of these plant communities should
necessarily be thought of as "Desired Plant Communities". According to the USDA NRCS National
Range and Pasture Handbook, Desired Plant Communities will be determined by the decision makers
and will meet minimum quality criteria established by the NRCS. The main purpose for including any
description of a plant community here is to capture the current knowiedge and experience at the time
of this revision.
Western Wheatgrass, Blue Grama, Green Needlegrass, Fourwing Saltbush Plant
Community
This is the interpretive plant community and is considered to be the Historic Climax Plant Community
(HCPC). This plant community evolved with grazing by large herbivores and is well suited for grazing
by domestic livestock and can be found on areas that are properly managed with prescribed grazing
that allows for adequate recovery periods following each grazing event.
The plant community consists of 70-90% grasses and grass-likes, 5-15°/a forbs and 5-15°/a shrubs.
Dominant grasses include western wheatgrass, green needlegrass and blue grama. Other grasses
and grass-like plants that occur in minor amounts are buffalograss, sideoats grama and sun sedge.
Significant forbs are American vetch, purple prairieclover and scarlet globemallow. Dominant shrubs
that occupy this community are fourwing saltbush and winterfat.
This plant community is diverse, stable, and productive. It is well suited to carbon sequestration,
water yield, wildlife use by many species, livestock use and is esthetically pleasing. Community
dynamics, nutrient cycle, water cycle and energy flow are functioning properly. Plant litter is properly
distributed with very little movement off-site and natural plant mortality is very low. This community is
resistant to many disturbances except continuous grazing, tillage and/or development into urban or
other uses.
Total annual production, during an average year, ranges from 500 to 1600 pounds per acre air-dry
weight and will average 1000 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6701
Growth curve name: Cool season/warm season co-dominant; MLRA-676; u land fine textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 2 8 20 28 15 12 10 5 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Continuous grazinp without adequate recovery periods between grazing events shifts this plant
community toward the Blue Grama/Buffalograss Sod with Cool Season and Shrub Remnants
Plant Community.
• Non-use and lack of fire will move this plant community toward the Low Plant Density and
Excessive Litter Plant Community.
Technical Guide USDA NRCS
Section IIE 6 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southem Part R067BY042CO
. Prescribed arazinq that allows for adequate recovery opportunity following each grazing event and
proper stocking will maintain the Western Wheatgrass, Blue Grama, Green Needlegrass,
Founving Saltbush Plant Community(HCPC).
Blue GramalBuffalograss Sod with Remnant Cool Season and Shrubs Plant
Community
This plant community evolved with continuous grazing without adequate recovery periods between
each grazing event during the growing season. Recognition of this plant community will enable the
land user to implement key management decisions before a significant economic/ecological threshold
is crossed.
Key species such as green needlegrass, western wheatgrass, American vetch, fourwing saltbush and
winterfat have been reduced to remnant amounts. Blue grama and buffalograss have increased in
abundance, dominate the community, and are beginning to take on a sod appearance. Sand
dropseed, red threeawn, sixweeks fescue, bottlebrush squirreltail and hairy goldaster have also
increased. This plant community is at risk of losing green needlegrass, western wheatgrass,
American vetch, fourwing saltbush and winterfat . Once these key species are completely removed
and other plants have increased, it will take a long time to bring them back by management alone.
Substantial increases in money and other resources will be required to replace the lost species in a
shorter period of time.
Total aboveground carbon has been reduced due to decreases in forage and litter production.
Reduction of rhizomatous wheatgrass, nitrogen fixing forbs, shrub component and increased warm
season shortgrasses has begun to alter the biotic integrity of this community. Water and nutrient
cycles are impaired. This is an early stage of desertification.
Total annual production, during an average year, ranges from 200 to 800 pounds per acre air-dry
weight and will average 600 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6702
Growth curve name: Warm season dominant, cool season sub-dominant; MLRA-67B, upland fine
textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 2 15 45 20 15 3 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Continuous qrazinq without adequate recovery periods between grazing events will shift this plant
community across an ecological threshold to a Blue Grama/Buffalograss Sod Plant Community.
This transition leads to a dramatically altered plant community.
• Prescribed arazinq with adequate recovery opportunities between grazing events and proper
stocking will bring this community back to the Western Wheatgrass, Blue Grama, Green
Needlegrass, Founving Saltbush Plant Community(HCPC).
Excessive Litter, Low Density Plant Community
This plant community occurs when grazing is removed for long periods of time in the absence of fire.
Plant composition is similar to the HCPC, however individual species production and frequency will be
lower.
Technical Guide USDA NRCS
Section IIE 7 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southern Part R067BY042CO
Much of the nutrients are tied up in excess litter. The semiarid environment and the absence of
animal traffic to break down litter slow nutrient recycling. Aboveground litter also limits
sunlight from reaching plant crowns. Many plants, especially bunchgrasses die off. Thick litter and
absence of grazing or fire reduce seed germination and establishment.
In advanced stages, plant mortality can increase and erosion may eventually occur if bare ground
increases. Once this happens it will require increased energy input in terms of practice cost and
management to bring back.
Total annual production can vary from 300 to 1100 pounds of air-dry vegetation per acre and will
average 750 pounds during an average year.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6703
Growth curve name: Cool season/warm season co-dominant, excess litter; MLRA-676; upland fine
textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 10 20 25 15 15 10 5 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other piant communities are as foliows:
. Prescribed qrazinq with adequate recovery periods between grazing events during the growing
season wili move this plant community toward the Western Wheatgrass, Blue Grama, Green
Needlegrass, Founving Saltbush Plant Community(HCPC). This can be a relatively short-term
transition depending upon how degraded the plant community has become.
Blue Grama/Buffalograss Sod Plant Community
This plant community evolved with continuous grazing and occurs frequently throughout most of the
eastern plains of Colorado. Most of the key grass, forb and shrub species are absent. Western
wheatgrass may persist in trace amounts, greatly reduced in vigor and not readily seen. Blue grama
and buffalograss dominate the community with a tight"sodbound" appearance. Red threeawn, sand
dropseed, sixweeks fescue and hairy goldaster have increased.
This plant community is resistant to change due to grazing tolerance of buffalograss and blue grama.
A significant amount of production and diversity has been lost from this community when compared to
the HCPC. Loss of cool season grasses, shrub component and nitrogen fixing forbs have negatively
impacted energy flow and nutrient cycling. Water infiltration is reduced significantly due to the
massive shallow root system "root pan", characteristic of blue grama and buffalograss. Soil loss may
be obvious where flow paths are connected.
It will take a very long time to restore this plant community back to the HCPC with management.
Renovation would be very costly. Desertification is advanced.
Total annual production, during an average year, ranges from 100 to 700 pounds per acre air-dry
weight and will average 450 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Technical Guide USDA NRCS
Section IIE 8 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southern Part R067BY042CO
Growth curve number: CO6707
Growth curve name: Warm season dominant; MLRA-67B; u iand fine textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 3 20 45 20 10 2 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
. Heaw continuous arazinq or excessive defoliation without adequate recovery periods following
each grazing event will shift this plant community toward the Red threeawn, Annuals, Bare Ground
Plant Community. Erosion and loss of organic matter/carbon reserves are concerns.
• Lonp term prescribed qrazinq with adequate recovery periods following each grazing event and
proper stocking over long periods of time move this plant community toward the Blue
Grama/Buffalograss Sod with Cool Season Remnants Plant Community and will eventually return
to the HCPC or associated successional plant communities, assuming an adequate
seed/vegetative source is available. This process may take greater than 40 years.
Red Threeawn, Annuals and Bare Ground Plant Community
This plant community develops with heavy continuous grazing and/or occupation by prairie dogs. Red
threeawn, curlycup gumweed and annual plants such as sixweeks fescue, cheatgrass and Russian
thistle have increased and/or invaded. Blue grama may persist in localized areas. Introduced species
such as field bindweed can also be present, especially on prairie dog towns.
This community lacks stability, diversity and productivity. Litter levels are extremely low. Erosion is
evident where flow paths are continuous. Rills may occur on steeper slopes. The nutrient cycle,
water cycle and overall energy flow are greatly impaired. Organic matter/carbon reserves are greatly
reduced. Desertification is advanced.
Total annual production can vary from 50 to 200 pounds of air-dry vegetation per acre and will
average 100 pounds during an average year.
The foilowing is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth wili typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6707
Growth curve name: Warm season dominant; MLRA-678; upland fine textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 3 20 45 20 10 2 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Lonq term orescribed qrazinq with adequate recovery periods between each grazing event and
proper stocking can eventually move this community back to the Western Wheatgrass, Blue
Grama, Green Needlegrass, Founving Saltbush Plant Community(HCPC) or associated
successional plant community stages, assuming an adequate seed/vegetative source exists. This
transition will take a long time (40 to 80 years or more) to achieve.
• Ranae seedinp followed by prescribed grazing may be used as an alternative to convert this plant
community to a Seeded Rangeland community, which can closely resemble the HCPC however,
at a substantial cost.
Technical Guide USDA NRCS
Section IIE 9 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Souffiern Part R067BY042CO
Go-back Land
Go-back land is created when the soil is tilled or farmed (sodbusted) and abandoned. All of the native
plants are destroyed, soil organic mater is reduced, soil structure is changed and a plowpan or
compacted layer is formed. Residual synthetic chemicals often remain from past farming operations
and erosion processes are active.
Go-back tand evolves through several plant communities beginning with an early annual plant
community, which initiates the revegetation process. Plants such as Russian thistle, kochia and other
annuals begin to establish. These plants give some protection from erosion and start to build minor
levels of soil organic matter. This early annual plant community iasts for iwo to several years. Red
threeawn, sand dropseed and several other early perennials can dominate the plant community for
five to eight years or more. Buffalograss establishes next and dominates for many years. Eventually
western wheatgrass, blue grama and other natives become reestablished.
Transitions or pathways leading to other plant communities are as follows:
• Very lonq term prescribed qrazinq that allows adequate recovery periods following each grazing
event and proper stocking will eventually move the plant communities establishing on Go-back
Land back to the HCPC or Any Community, assuming an adequate seed/vegetative source is
available. This process takes many years (40-80 years or more).
• Ranqe seedinq followed with prescribed grazing can be used to convert Go-back Land to Seeded
Rangeland. This is a quick transition requiring a substantial energy and financial inputs.
Go-back Land (eroded)
Eroded go-back land is created where tillage or farming and severe erosion has occurred. If the
parent material that the original soil developed from is lost, then another ecosite will evolve. If the
same parent material is present, then re-seeding or the slow process of developing soil and
vegetation will start by similar processes as shown in the non-eroded Go-back Land above. This is a
very slow process (100 years or more).
Seeded Rangeland
This plant community can vary considerably depending on how eroded the soil was, the species
seeded, the stand that was established, how long ago the stand was established, and the
management of the stand since establishment.
Transitions or pathways leading to other plant communities are as follows:
• Continuous qrazinq without adequate recovery period between grazing events can shift this plant
community to a plant community resembling Go-back Land.
• Lonp term prescribed arazina with adequate recovery periods between grazing events will
eventually move this plant community toward the Western Wheatgrass, Blue Grama, Green
Needlegrass, Fourwing Saltbush Plant Community(HCPC) or associated successional plant
communities. This transition can take 40 years or more.
Technical Guide USDA NRCS
Section IIE 10 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southem Part R067BY042CO
Ecological Site Interpretations
Animal Community — Wildlife Interpretations
Western Wheatgrass, Blue Grama, Green Needlegrass, Fourwing Saltbush Plant Community-
Historic Climax Plant Community (HCPC)
Common bird species expected on the HCPC include Cassin's sparrow, chestnut collared longspur,
lark bunting, western meadowlark, and ferruginous and Swainson's hawks. White-tailed and black-
tailed jackrabbit, badger, pronghorn, coyote, swift fox, plains pocket gopher, long-tailed weasel, and
several species of mice are mammals that commonly use this plant community. Reptiles using this
community include western rattlesnake, bullsnake, plains garter snake (if water is in home range),
western hognose snake, racer, western box turtle, and six-lined racerunner.
Blue Grama/Buffalograss Sod with Cool Season Remnants Plant Community
The reduction of shrubs and taller grasses in this plant community results in a shift of bird species
away from the HCPC birds. Lark bunting, chestnut-coliared longspur, and western meadowlark use
declines and Cassin's sparrow stop using the community altogether. Habitat conditions are ideal for
long-billed curlew. McCown's longspur, burrowing owl, mountain plover, killdeer, and horned lark
begin using this community. Ferruginous and Swainson's hawks are frequent users of this community
Most mammals will be the same as in the HCPC, howeverjackrabbit, black-tailed prairie dog, desert
cottontail, and thirteen-lined ground squirrel use will increase because of the changing plant
community. Reptiles using this community are the same as in the HCPC.
Excessive Litter, Low Density Plant Community; Blue Grama/Buffalograss Sod Plant
Community; Red Threeawn, Annuals, Bare Ground Plant Community; and Go-back Land Plant
Community
Burrowing owl, mountain plover, horned lark, McCown's longspur, killdeer, and long-billed curlew use
these plant communities although mountain plover will avoid areas where slopes are greater than 5
percent. With the exception of the hawk species, no HCPC bird species would be expected in these
communities. Jackrabbit, black-tailed prairie dog, thirteen-lined ground squirrel, and desert cottontail
rabbit are frequent users of these communities. Ali other mammai species from the HCPC may use
the community. Reptiles using these communities exclusively are short-horned lizard and lesser
earless lizard. Other reptiles using these communities include the species listed for the HCPC.
Seeded Rangeland
The wildlife species expected on seeded rangeland would be those listed for the plant community the
seeding most resembles.
Other Potential Species
The plains spadefoot is the only common species of frog or toad inhabiting grasslands in Eastern
Colorado. This species requires water for breeding. Tiger salamanders may be found on grassland
sites, but require a water body for breeding. Either of these species may be found in any plant
community if seasonal water requirements are met. Mule and white-tailed deer may use this
ecological site, however the shrub cover is too low to provide escape or hiding cover. On ecological
site locations near riparian areas, deer wili use the vegetation for feeding. Big brown bats will use any
plant community on this ecological site if a building site is in the area. The gray wolf, black-footed
ferret, and wild bison used this ecological site in historic times. The wolf and ferret are thought to be
extirpated from Eastern Colorado. Bison are currently found only as domestic livestock.
Technical Guide USDA NRCS
Section IIE I1 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southern Part R067BY042CO
Animal Preferences (Quarterly — 1,2,3,4t)
Common Name Cattle Sheep Horses Deer Antelope Bison Elk
Grasses and Gress-likes
alkali sacaton U D D U N U N N U D D U N U N N N U N N U D D U U D D U
blue grama D P P D D P P D D P P D D P P D D P P D D P P D D P P D
bottlebrush squirreltail U D U U U D U U U D U U U D U U U D U U U D U U U D U U
buffalograss DDPD DDPD DDPD DDPD DDPD DDPD DDPD
galleta UDDU UDDU UDDU UDDU UDDU UDDU UDDU
greenneedlegrass UPDD U PDD UPDD UPDD UPDD UPDD UPDD
Indian ricegrass D P D D D P D D D P D D D P D D D P D D D P D D D P D D
inlandsaltgrass NUUN NNNN NUUN NNNN NNNN NUUN NUUN
prairie junegrass U D U D N D N U U D U D N D N U N D N U U D U D U D U D
red threeawn N N N N N N N N N N N N N N N N N N N N N N N N N N N N
sanddropseed UDUN NUDN UDUN NUDN NUDN UDUN UDUN
sideoats grama U D P U U D P U U D P U U D P U U D P U U D P U U D P U
tall dropseed N U N N N U N N N U N N N U N N N U N N N U N N N U N N
western wheatgrass U P D D U P D D U P D D U P D D U P D D U P D D U P D D
needleleaf sedge U P D D U P D D U P D D U P D D U P D D U P D D U P D D
sunsedge UPDD UPDD UPDD UPDD UPDD UPDD U PDD
Forbs
American vetch D P P D D P P D D P P D D P P D D P P D D P P D D P P D
blankefflower UUUU NUUN UUUU NUUN NUUN UUUU UUUU
dotted gayfeather U U D U U D P U U U D U U D P U U D P U U U D U U U D U
Fremont goldenweed U U U U N U U N U U U U N U U N N U U N U U U U U U U U
hairy goldaster U U D U N N N N U U D U N N N N N N N N U U D U U U D U
Louisiana sagewort U U U U U U D U U U U U U U D U U U D U U U U U U U U U
plains bahia N N N N N U U N N N N N N U U N N U U N N N N N N N N N
prairie sunflower U D P U U D P U U D P U U D P U U D P U U D P U U D P U
purpleprairieclover U P P D U P P U U P P D U P P U U P P U U P P D U P P D
rush skeletonplant U U U U N N N N U U U U N N N N N N N N U U U U U U U U
scarlet gaura U U D U U D D U U U D U U D D U U D D U U U D U U U D U
scarlet globemallow U D D U U P P U U D D U U P P U U P P U U D D U U D D U
silky crazyweed T T T T T T T T T T T T T T T T T T T T T T T T T T T T
silky sophora T T T T T T T T T T T T T T T T T T T T T T T T T T T T
slimflower scurtpea N N N N N U U N N N N N N U U N N U U N N N N N N N N N
lwogroovedmilkvetch TTTT TTTT TTTT TTTT TTTT TTTT TTTT
uprightprairieconeflower U U D U U P P U U U D U U P P U U P P U U U D U U U D U
woollylndianwheat UUUU UUUU UUUU UUUU UUUU UUUU UUUU
woollylocoweed TTTT TTTT TTTT TTTT TTTT TTTT TTTT
Shrubs
broom snakeweed N N N N N N N N N N N N N N N N N N N N N N N N N N N N
founving saltbush P D D P P D D P P D D P P D D P P D D P P D D P P D D P
fringedsagebrush UNNU UDDU UNNU UDDU UDDU UNNU UNNU
plains pricklypear N N N N N N N N N N N N N N N N N N N N N N N N N N N N
purple pincushion N N N N N N N N N N N N N N N N N N N N N N N N N N N N
winterfat PPPP PPPP PPPP PPPP PPPP PPpp PPPP
N = not used; U = undesirable; D = desirable; P = preferred; T = toxic
t Quarters: 1 — Jan., Feb., Mar.; 2—Apr., May, Jun.; 3—Jul., Aug., Sep.; 4 — Oct., Nov., Dec.
Technical Guide USDA NRCS
Section IIE 12 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Ceniral High Plains, Southem Part R067BY042CO
Animal Community — Grazing Interpretations
The following table lists suggested initial stocking rates for cattle under continuous grazing (year long
grazing or growing season long grazing) under normal growing conditions however, continuous
grazing is not recommended. These are conservative estimates that should be used only as
guidelines in the initial stages of the conservation planning process. Often, the current plant
composition does not entirely match any particular plant community (described in this ecological site
description). Because of this, a field visit is recommended, in all cases, to document plant
composition and production. More precise carrying capacity estimates should eventually be
calculated using the following stocking rate information along with animal preference data, particularly
when grazers other than cattle are involved. Under more intensive grazing management, improved
harvest efficiencies can result in an increased carrying capacity.
Plant Community Production Stocking
Rate
(Ibs./acre) (AUM/acre)
Western Wheatgrass, Blue Grama, Green Needlegrass, Fourvving (HCPC) 1000 0.32
Blue Grama/Buffalograss Sod w/Remnant Cool Seasons/Shrubs 600 0.19
Blue Grama/Buffalograss Sod 450 0.14
Low Plant Density, Excessive Litter � '
Red Threeawn, Annuals, Bare Ground ' "
Grazing by domestic livestock is one of the major income-producing industries in the area.
Rangelands in this area provide yearlong forage under prescribed grazing for cattle, sheep, horses
and other herbivores. During the dormant period, livestock may need supplementation based on
reliable forage analysis.
' Highly variable; stocking rate needs to be determined on site.
Hydrology Functions
Water is the principal factor limiting forage production on this site. This site is dominated by soils in
hydrologic group D. Infiltration and runoff potential for this site is moderate depending on ground
cover. In many cases, areas with greater than 75% ground cover have the greatest potential for high
infiltration and lower runoff. An exampie of an exception would be where short grasses form a strong
sod and dominate the site. Areas where ground cover is less than 50% have the greatest potential to
have reduced infiltration and higher runoff(refer to NRCS Section 4, National Engineering Handbook
(NEH-4) for runoff quantities and hydrologic curves).
Recreational Uses
This site provides hunting, hiking, photography, bird watching and other opportunities. The wide
varieties of plants that bloom from spring until fall have an esthetic value that appeals to visitors.
Wood Products
No appreciable wood products are present on the site.
Other Products
Nane noted.
Technical Guide USDA NRCS
Section IIE 13 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southem Part R067BY042CO
Supporting Information
Associated Sites
(0676Y002CO)— Loamy (formerly Loamy Plains)
(0676Y036CO)—OverFlow
(067BY045CO)- Shaly Plains
Similar Sites
(067BY002CO)— Loamy (formerly Loamy Plains)
[surface texture consists of vfsl to sil, higher production]
Inventory Data References
Information presented here has been derived from NRCS clipping data, numerous ocular estimates
and other inventory data. Field observations from experienced range trained personnel were used
extensively to develop this ecological site description. Specific data information is contained in
individual landowner/user case files and other files located in county NRCS field offices.
Those involved in developing this site include: Ben Berlinger, Rangeland Management Specialist,
NRCS; Harvey Sprock, Rangeland Management Specialist, NRCS; James Borchert, Soil Scientist,
NRCS; Terri Skadeland, Biologist, NRCS.
State Correlation
This site is specific to Colorado (formerly Clayey Plains).
Field Offices
Akron, Brighton, Burlington, Byers, Cheyenne Wells, Eads, Flagler, Fort Collins, Fort Morgan,
Greeley, Holly, Hugo, Kiowa, Lakewood, Lamar, Longmont, Simla, Springfield, Sterling
Technical Guide USDA NRCS
Section IIE 14 Rev. 3/04
Site Type: Rangeland Clayey
MLRA: 67B - Central High Plains, Southem Part R067BY042CO
Other References
High Plains Regional Climate Center, University of Nebraska, 830728 Chase Hall, Lincoln, NE
68583-0728. (http://hpccsun.unl.edu)
USDA, NRCS. Nationai Water and Climate Center, 101 SW Main, Suite 1600, Portland, OR 97204-
3224. (http://wcc.nres.usda.gov)
USDA, NRCS. National Range and Pasture Handbook, September 1997
USDA, NRCS. National Soil Information System, Information Technology Center, 2150 Centre
Avenue, Building A, Fort Collins, CO 80526. (http://nasis.nres.usda.gov)
USDA, NRCS. 2004. The PLANTS Database, Version 3.1 (http://plants.usda.gov). National Plant
Data Center, Baton Rouge, LA 70874-4490 USA.
Andrews, R. and R. Righter. 1992. Colorado Birds. Denver Museum Nat. Hist., Denver, CO. 442 pp.
Armstrong, D.M. 1972. Distribution of mammals in Colorado. Univ. Kansas Museum Nat. Hist.
Monograph #3. 415 pp.
Colorado Breeding Bird Atlas. 1998. Hugh Kingery, Ed., Dist. CO Wildlife Heritage Found., P.O. Box
211512, Denver, CO, 80221. 636 pp.
Fitzgerald, J.P., C.A. Meaney, and D.M. Armstrong. 1994. Mammals of Colorado. Denver Museum
Nat. Hist. Denver, CO. 467 pp.
Hammerson, G.A. 1986. Amphibians and reptiles in Colorado. CO Div. Wild. Pubiication Code DOW-
M-I-3-86. 131 pp.
Rennicke, J. 1990. Colorado Wildlife. Falcon Press, Helena and Billings, MT and CO Div. Wildlife,
Denver CO. 138 pp.
Site Description Approval
State Range Management Specialist Date
Technical Guide USDA NRCS
Section IIE 15 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
United States Department of Agriculture
Natural Resources Conservation Service
Ecological Site Description
Wyomin
Site Type: Rangeland Neb Sk
Site Name: Loamy 87
Site ID: R0676Y002CO
Major Land Resource Area: 67B—Central High Plains, Southern Part
Physiographic Features K S�
This site occurs on nearly level to gently sloping plains. c i r�ao
Landform: plain, terrace Aspect: N/A
Minimum Maximum
Elevation (feet): 3800 5600
Slope (percent): 0 6
Water Table Depth (inches): 60 60
Flooding:
Frequency: none none
Duration: none none
Ponding:
Depth (inches): 0 0
Frequency: none none
Duration: none none
Runoff Class: low medium
Climatic Features
The mean average annual precipitation varies from 12 to 16 inches per year depending on location
and ranges from less than 8 inches to over 20 inches per year. Approximately 75 percent of the
annual precipitation occurs during the growing season from mid-April to late-September. Snowfall can
vary greatly from year to year but averages 35 to 45 inches per year. Winds are estimated to average
about 9 miles per hour annually, ranging from 10 miles per hour during the spring to 9 miles per hour
during late summer. Daytime winds are generally stronger than nighttime and occasional strong
storms may bring periods of high winds with gusts to more than 90 miles per hour.
The average length of the growing season is 142 days, but varies from 129 to 154 days. The average
date of first frost in the fall is September 28, and the last frost in the spring is about May 9. July is the
hottest month and December and January are the coldest. It is not uncommon for the temperature to
exceed 100 degrees F during the summer. Summer humidity is low and evaporation is high. The
winters are characterized with frequent northerly winds, producing severe cold with temperatures
dropping to -35 degrees F or lower.
Technical Guide USDA NRCS
Section IIE Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Growth of native cool season plants begins about March 15 and continues to about June15. Native
warm season plants begin growth about May 15 and continue to about August 15. Regrowth of cool
season plants occurs in September and October of most years, depending on moisture.
Minimum Maximum
Frost-free period (days): 129 154
Freeze-free period (days): 151 178
Mean Annual Precipitation (inches): 12 16
Average Monthly Precipitation (inches) and Temperature (°F):
Preci . Min. Preci . Max Tem . Min. Tem . Max.
Janua 0.32 0.36 12.0 45.1
Februa 0.26 0.38 15.9 50.9
March 0.83 0.87 22.3 58.9
A ril 1.28 1.38 30.1 69.1
Ma 2.32 2.49 39.9 78.0
June 1.93 2.57 49.0 88.7
Jul 1.42 2.31 55.0 93.9
Au ust 1.07 2.38 53.5 91.9
Se tember 1.02 1.40 43.8 83.8
October 0.89 1.00 32.5 72.9
November 0.52 0.53 20.9 57.4
December 0.34 0.37 11.9 46.9
Climate Stations Period
Station ID Location or Name From To
CO0945 Bri sdale 1948 2000
CO4076 Holl 1918 2000
CO9147 Windsor 1948 1990
For local climate stations that may be more representative, refer to http://www.wcc.nres.usda.gov.
Influencing Water Features
Wetland Description: Svstem Subsystem Class Sub-class
None None None None None
Stream Type: None
Technical Guide USDA NRCS
Section IIE 2 Rev. 3/04
Site Type: Rangeland ��y
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Representative Soil Features
The soils of this site are typically very deep but may also include moderately deep soils. Typically,
they are weli drained and are moderately slow or moderately permeable. Typically, these soils
formed in loamy loess and eolian deposits derived from mixed calcareous sources. Some soils
formed in loamy alluvium derived from mixed calcareous sources. These soils occur on upland
plains, and terraces. The available water capacity is typically high for the very deep soils and low to
moderate for the moderately deep soils. The soil surface layer ranges from 3 to 16 inches thick and is
typically loam or silt loam. The pH of these soils ranges from neutral to moderately alkaline. The soil
moisture regime is typically aridic ustic with some ustic aridic in the drier areas. The soil temperature
regime is mesic.
The Historic Climax Plant Community (HCPC) should show slight to no evidence of rilis, wind scoured
areas or pedestaled plants. Water flow paths are broken, irregular in appearance or discontinuous
with numerous debris dams or vegetative barriers. The soil surface is stable and intact. Sub-surface
soil layers are non-restrictive to water movement and root penetration.
Major soil series correlated to this ecological site include: Adena, Altvan, Ascalon (loam), Baca
(loam), Colby (0-5%), Fort Collins, Harbord, Iliff, Keith, Kimst, Kuma, Norka, Nucla, Nunn (loam),
Platner, Rago, Renohill, Richfield, Rosebud, Satanta, Stoneham, Thedalund , Ulmet, Ulysses, Wages,
Weld and Wiley.
Other soil series that have been correlated to this site include: none
Parent Material Kind: loess, eolian deposits, alluvium
Parent Material Origin: mixed-calcareous
Surface Texture: loam, silt loam, very fine sandy loam
Surface Texture Modifier: none
SubsurFace Texture Group: loamy
Surface Fragments 5 3" (°/a Cover): 0
SurFace Fragments > 3" (%Cover): 0
Subsurface Fragments 5 3" (% Volume): 0 - 15
Subsurface Fragments > 3" (% Volume): 0
Minimum Maximum
Drainage Class: well well
Permeability Class: slow moderate
Depth (inches): 40 80
Electrical Conductivity (mmhos/cm)*: 0.00 2.00
Sodium Absorption Ratio*: 0 0
Soil Reaction (1:1 Water)*: 6.6 8.4
Available Water Capacity (inches)": 3 8
Calcium Carbonate Equivalent (percent)*: 0 15
'These attributes represent 0-40 inches in depth or to the first restrictive layer.
Technical Guide USDA NRCS
Section IIE 3 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Plant Communities
Ecological Dynamics of the Site:
Deterioration of this site, due to continuous grazing without adequate recovery periods following each
grazing occurrence, will cause blue grama and buffalograss to increase and eventually form a sod.
Cool season grasses such as green needlegrass and western wheatgrass wili decrease in frequency
and production as well as key shrubs such as fourvving saltbush and winterfat. American vetch and
other highly palatable forbs will decrease also. Red threeawn, annuals and bare ground increases
under heavy continuous grazing or excessive defoliation. Much of this ecological site has been tilled
and used for crop production.
The historic climax plant community (description follows the plant community diagram) has been
determined by study of rangeland relic areas, areas protected from excessive disturbance, seasonal
use pastures, short durationl/time controlled grazing and historicai accounts.
The following diagram illustrates the common plant communities that can occur on the site and the
transition pathways (arrows) among communities. Bold lines surrounding each plant community or
communities represent ecological thresholds. The ecological processes are discussed in more detail
in the plant community descriptions following the diagram.
Plant Communities and Transitional Pathways
P CG Seeded '
Blue Grama/i Blue Grama/Buffalo- Rangeland
Buffalograss grass Sod with
Sod Cool Season
Remnants
LTPG RS CG
PG CG
VLTPG Go-back Land
Westem Wheatgress RS
Blue Grama
Green Needlegrass
Founving Saltbush Tilled and
� (HCPC) � qbandoned
NU, NF PG
Any
Low Plant Density, ' COrtlit7unity
Excessive Litter Tilled and
Abandoned
LTPG Eroded(Go-back Land)
HCG, I RS
Red Threeawn, ED �
Annuals,
Bare Ground Eroded Seeded
Rangeland
CG-continuous grazing w/o adequate recovery opportunity, ED-excessive
defoliation, HCG-heavy continuous grazing, HCPC- Historic Climax Plant
Community, LTPG-long term prescribed grazing (>40 yrs), NF-no fire,
NU-non use, PG-prescribed grazing with adequate recovery period,
RS- range seeding,VLTPG-very long term prescribed grazing (>80 yrs)
Technical Guide USDA NRCS
Section IIE 4 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southem Part R067BY002CO
Plant Community Composition and Group Annual Production
Weatern Wheatgraac,Blue Grama,Green
Naedle ra� Fourvvin Salt6ush CP
COpMON/GROUP NAME SQENTIFIC NANE SYMBOL Gmu IbsJacre %Com
GRASSESt6+6&]ISS,I#17fE5 '<- - �
COOL SEASON RM1�iKYZOMATOU5 GRASS � � 1 280 -990 20 -70
western wheat rass Pasco rum smithii PASM 1 280-380 20 -30
COOL SFASON M1�D StN11CH GRASSES 2 65 -195 5 -15
hoMehmsh s uirrel[ail EI us el moitles ss .el moides ELELE 2 0-13 0 -1
reen needle rass Nassella viridula NAVI4 2 85-195 5 -15
Indian nre ress Achnatherum menoitles ACHY 2 0-13 0-7
neetlleantl[hread Hes erosti a coma[a ss .comata HECOCB 2 0-73 0 -1
WARM SEASON SHORT SWVCli GRA55 ? NO -325 20 -25
blue rema Bouteloua recilis BOGR2 3 260-325 20-25
WARA!SEASON SNORT STGYENFFROUS GRASS 4 19 -85 1 -5
buffalo ress 8uchloe dac laides BUDA 4 73-65 1 -5
WARM SEASON IYAm BfAJGf GRASSES 5 '19 -39 1 -3
little hluestem Schizach rium soo arium SCSC 5 0-13 0-1
sideoats rama Bouteloua curti entlula BOCU 5 0-13 0 -1
sand dro seed S orobolus c tandrus SPCR 5 13-39 1 -3
COOLSEASONAl1MfUALGRASSES 8 0 -14 0 -t
sixweeks fescue Vul ia octoflora VUDC fi 0-13 0 -1
lMSC�e�OUSGRASSES 7 }3 -22 1 -1
retl threeawn Ari5tlda ur urea var.lon iseta ARPUL 7 0-13 � -i
rin muhl Muhlenber ia torre - MUT02 7 0-13 0-1
SEDGES 8 f3 -26 1 -2
sun sed e Carex ino s ss .helio hila CAINH2 8 13-26 1 -2
needieleaf sed e Carex tluriuscula CADU6 8 0-13 0-1
07NER NATNE GRASSE5 2GP 9 13 -$8 l -3
F�MtBS..ET ', '..., _,.
cecux�s �o zz -n s -�
American vetch Vicia americana VIAM 10 13-65 1 -5
ur le rairie clover Oalea ur urea var. ur urea DAPUP 10 13-26 1 -2
slimFlower scu ea Psoralitlium[enuiflorum PSTES 10 0-73 0 -1
wooll locoweed Astra alus mollissimus ASM07 10 0-13 0 -1
sil craz eed O ro is sericea OXSE 10 0-73 0 -1
sil so hora So hora nuttalliana SONU 10 0-13 0 -1
COOL SFJISON 'I1 22 -44 2 -4
scarlet lobemallow S haeralcea coccinea SPCO 11 13-39 1 -3
narrowleaf enstemon Penstemon an ustrfolius PEAN4 11 13-28 1 -2
varia6le senecio Packera neomexicana var.mu[a6ilis PANEM 11 0-13 �-1
WARM SEASON 12 93 -77 3 -7
doffed a eather Liatris uncta[a LIPU 12 13-26 1 -2
iron lan[ oldenweed Machaeranthera innatrfidass . innatifida MAPIP4 72 13-26 1 -2
u ri ht rairie coneflower Ratlbida columnifera � RAC03 12 13-26 1 -2
lains bahia Picredenio sis o sitifolia PIOP 12 0-13 0-1
Coloradofuuro'clock Mirabilismul[iflora MIMU 12 0-73 0 -1
cutleaf evenin - rimmse Oenothera wrono ifolia OECO2 12 0-13 0 -1
Louisiana sa ewort Artemisia ludoviciana ARLU 12 �-73 0-1
rush skele[on lant L odesmia-uncea LYJU 12 0-73 0-1
scade[ aura Gaura coccinea GACO5 12 0-13 0-1
wa leaf[histle Cirsium undulatum CIUN 12 0-13 0-1
westem ra weetl Ambmsla sitos[ach AMPS 12 0-13 0-1
qM�IUIILs '13 0 -93 0 -i
wooll Indianwheat Planta o ata onica PLPA2 13 0-13 0-1
O7HER NATNE FORes 2FP 14 16 -65 Y -5
5'li20BS`RALeFStRi�BS ETC:�.... . . . . .
SiARt�5 'IS 88 -2B0 � ���6 _pp� .
fourvvin saltbush Atri lex canescens ATCA2 15 fi5-185 5 -15
winterta[ Krascheninnikovia lanata KRLA2 15 13-65 , 1 -5
ruh6er rab6itbrush Ericameria nauseosa ss .nauseosa ERNANS 15 0-13 0-i
HALF-SMifJ65 16 0 -17 O -1
6mom snakeweetl Gutiertezia sarothrae GUSA2 16 0-13 0-1
frin ed sa e6rush Artemisia fri itla ARFR4 16 0-13 0-1
SUCCULEIJr5 '17 0 -13 0 -1
lains nckl ear O untia o acaMha OPPD 17 0-13 0 -1
ur le incushion Esco6aria vivi ara var.vivi ara ESVN 17 0-13 �-1
E1/ERGREEN '18 0 -17 0 -!
small soa eed Yuw lauca YUGL 18 0-13 0-1
OTHER NA7NE ShPtU65
� �Anm'aFProtludlon.l6c.laae ��� �� lAW .},RV' -�-HIGH �
GRASSES 6 GRA551JXES
FORHS
SIR4U85 1
TOTAL
TFIi Yitol pl�nls�nE IAei���lallw p�opoRlmc a��E�a�E on ma�ro�mN y�ua.GW0NYlon5 in ipeol�s oampwltlon�M�elati��p�oWction m�y ulunge I�Om y�a�lo yea�EepaM�nl upan
pYdplNtlOn o�o[Fx cWnaYo IN[O�s.'RV-R�W�sanf�INe YYue
Technical Guide USDA NRCS
Section IIE 5 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Plant Community Narratives
Following are the narratives for each of the described plant communities. These plant communities
may not represent every possibility, but they probably are the most prevalent and repeatable plant
communities. The plant composition table shown above has been developed from the best availabie
knowledge at the time of this revision. As more data are collected, some of these plant communities
may be revised or removed, and new ones may be added. None of these plant communities should
necessarily be thought of as "Desired Plant Communities". According to the USDA NRCS National
Range and Pasture Handbook, Desired Plant Communities will be determined by the decision-makers
and will meet minimum quality criteria established by the NRCS. The main purpose for including any
description of a plant community here is to capture the current knowledge and experience at the time
of this revision.
Western Wheatgrass, Blue Grama, Green Needlegrass, Fourwing Saltbush Plant
Community
This is the interpretive plant community and is considered to be the Historic Climax Plant Community
(HCPC). This plant community evolved with grazing by large herbivores, is well suited for grazing by
domestic livestock and can be found on areas that are properly managed with prescribed grazing that
allows for adequate recovery periods following each grazing event. The potential vegetation is about
70-85% grasses and grass-like plants, 5-15% forbs and 10-15% woody plants.
The major grasses include western wheatgrass, green needlegrass and blue grama. Sub-dominant
grasses include needleandthread, buffalograss and sand dropseed. Major forbs and shrubs include
American vetch, upright prairie coneflower, scarlet globemallow, dotted gayfeather, fourwing saltbush
and winterfat.
This plant community is diverse, stable, and productive. Litter is properly distributed with very little
movement off-site and natural plant mortality is very low. It is well suited to carbon sequestration,
water yield, wildiife use by many species, livestock use and is esthetically pleasing. Community
dynamics, nutrient cycle, water cycle and energy flow are functioning properly. This community is
resistant to many disturbances except continuous grazing, tillage and/or development into urban or
other uses.
Total annual production ranges from 600 to 1800 pounds of air-dry vegetation per acre and will
average 1300 pounds during an average year.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins eariier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-676. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6701
Growth curve name: Cool season/warm season co-dominant; MLRA-676; u land fine textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 2 8 20 28 15 12 10 5 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Continuous arazina without adequate recovery periods between grazing events will shift this plant
community to the Blue Grama/Buffalograss Sod with Cool Season Remnants Plant Community.
• Non-use (rest) and lack of fire will move this plant community to the Low Plant Density, Excessive
Litter Plant Community.
Technical Guide USDA NRCS
Section IIE 6 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Cenual High Plains, Southem Part R067BY002CO
• Prescribed qrazinp that aliows for adequate recovery opportunity foltowing each grazing event and
proper stocking will maintain the Westem Wheatgrass, Blue Grama, Green Needlegrass,
Founving Saltbush Plant Community(HCPC).
Blue Grama/Buffalograss Sod with Cool Season Remnants Plant Community
This plant community evolved with long-term continuous grazing, moderate stocking, and in some
instances heavy winter stocking. Recognition of this plant community will enable the land user to
implement key management decisions before a significant economic/ecological threshold is crossed.
Key species such as green needlegrass, western wheatgrass, American vetch, fourwing saltbush and
winterfat have been reduced to remnant amounts. Blue grama and buffalograss have increased in
abundance, dominate the community, and are beginning to take on a sod appearance. Sand
dropseed, red threeawn, sixweeks fescue, plains pricklypear, hairy goldaster and bottlebrush
squirreltail have also increased. This plant community is at risk of losing western wheatgrass, which
is the major cool season grass left at this point. Once the key species are completely removed and
other plants have increased, it will take a long time to bring them back by management alone.
Substantial increases in money and other resources will be required to replace the lost species in a
shorter period of time.
Total aboveground carbon has been reduced due to decreases in forage and litter production.
Reduction of rhizomatous wheatgrass, nitrogen fixing forbs, shrub component and increased warm
season short grasses has begun to alter the biotic integrity of this community. Water and nutrient
cycles may be impaired.
Total annuai production can vary from 200 to 900 pounds of air-dry vegetation per acre and will
average 700 pounds during an average year.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-676. Vegetative growth wiil typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6702
Growth curve name: Warm season dominant, cool season sub-dominant; MLRA-67B, upland fine
textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 2 15 45 20 15 3 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Continuous qrazinq without adequate recovery periods between grazing events shifts this plant
community across an ecological threshold toward the Blue Grama/Buffalograss Sod Plant
Community.
• Prescribed qrazinq with adequate recovery periods after each grazing occurrence during the
growing season with a proper stocking rate will return the plant community back to the Western
Wheatgrass, Blue Grama, Green Needlegrass, Fourwing Saltbush Plant Community(HCPC).
Low Plant Density, Excessive Litter Plant Community
This plant community occurs when grazing is removed for long periods of time (rest) in the absence of
fire. Plant composition is similar to the HCPC, however individual species production and frequency
will be lower. Prickley pear cactus and fringed sagebrush have increased.
Technical Guide USDA NRCS
Section IIE 7 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Much of the nutrients are tied up in excessive litter. The semiarid environment and the absence of
animal traffic to break down litter slow nutrient recycling. Aboveground litter also limits sunlight from
reaching plant crowns. Many plants, especially bunchgrasses die off. Thick litter and absence of
grazing orfire reduce seed germination and establishment.
In advanced stages, plant mortality can increase and erosion may eventually occur if bare ground
increases. Once this happens it will require increased energy input in terms of practice cost and
management to bring back.
Total annual production can vary from 400 to 1300 pounds of air-dry vegetation per acre and will
average 850 pounds during an average year.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6703
Growth curve name: Cool season/warm season co-dominant, excess litter; MLRA-67B; upland fine
textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 10 20 25 15 15 10 5 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Prescribed qrazinq with adequate recovery periods between each grazing event and proper
stocking can restore this plant community back to the Western Wheatgrass, Blue Grama, Green
Needlegrass, Founving Saltbush Plant Community(HCPC).
Blue Grama/Buffalograss Sod Plant Community
This plant community evolved with repeated continuous grazing and occurs frequently throughout
most of the eastern plains of Colorado. Fourwing saltbush, winterfat, American vetch and green
needlegrass have been removed. Western wheatgrass may persist in trace amounts, greatly reduced
in vigor and not readily seen. Blue grama and buffalograss dominate the community with a tight
"sodbound" structure. Plains pricklypear, hairy goldaster, red threeawn, sixweeks fescue and
bottlebrush squirreltail have increased.
This plant community is resistant to change due to grazing tolerance of buffalograss and blue grama.
A significant amount of production and diversity has been lost when compared to the HCPC. Loss of
cooi season grasses, shrub component and nitrogen fixing forbs have negatively impacted energy
flow and nutrient cycling. Water infiltration is reduced significantly due to the massive shallow root
system "root pan", characteristic of sodbound blue grama and buffalograss. Soil loss may be obvious
where flow paths are connected.
It will take a very long time to restore this plant community back to the HCPC with improved
management. Renovation would be very costly. Desertification is advanced.
Production ranges from 100 to 800 pounds of air-dry vegetation per acre per year and averages 600
pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-676. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Technical Guide USDA NRCS
Section IIE 8 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Growth curve number: CO6707
Growth curve name: Warm season dominant; MLRA-676; u land fine textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 3 20 45 20 10 2 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Heaw continuous prazinp or excessive defoliation without adequate recovery periods following
each grazing event will shift this plant community toward the Red threeawn, Annuals, Bare Ground
Plant Community. This transition may take greater than 40 years. Erosion and loss of organic
matter/carbon reserves are concerns.
. Lonq term prescribed qrazinq with adequate recovery periods following each grazing event and
proper stocking over long periods of time move this plant community toward the Blue
Grama/Buffalograss Sod with Cool Season Remnants Plant Community and will eventually return
to the HCPC or associated successional plant community stages assuming an adequate
seed/vegetative source is available. This process may take greater than 40 years.
Red Threeawn, Annuals, Bare Ground Plant Community
This plant community develops with heavy continuous grazing and/or occupation by prairie dogs. Red
threeawn is the dominant species. Blue grama may persist in localized areas. Introduced annuals
such as kochia and Russian thistle are present. Introduced species such as field bindweed can also
be present, especially on prairie dog towns.
Litter levels are extremely �ow. Erosion is evident where flow paths are continuous. Rills may occur
on steeper slopes. Wind scoured areas may be apparent on knolls or unprotected areas. The
nutrient cycle, water cycle and overall energy flow are greatly impaired. Organic matter/carbon
reserves are greatly reduced. This community is not stable. Desertification is obvious.
Total annual production can vary from 50 to 200 pounds of air-dry vegetation per acre and wiil
average 100 pounds during an average year.
The following is an estimated growth curve of this plant community expected during a norrnal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-678. Vegetative growth will typicaily be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6707
Growth curve name: Warm season dominant; MLRA-67B; u land fine textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 3 20 45 20 10 2 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
. Lonp term prescribed prazinp with adequate recovery periods between each grazing event and
proper stocking can eventually move this community back to the Historic Climax Plant Community
or associated successional plant community stages, but it will take a long time (40 to 80 years or
more).
. Ranqe seedinp followed by prescribed grazing may be used as an alternative to convert this plant
community to a Seeded Rangeland community, which can closely resemble the HCPC however,
at a substantial cost.
Technical Guide USDA NRCS
Section IIE 9 Rev. 3/04
Site Type: Rangeland ��►y
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Go-back Land
Go-back land is created when the soil is tilled or farmed (sodbusted) and abandoned. Ail of the native
plants are destroyed, soil organic mater is reduced, soil structure is changed and a plowpan or
compacted layer is formed. Residual synthetic chemicals often remain from past farming operations
and erosion processes may be active.
Go-back land evolves through several plant communities beginning with an early annual plant
community, which initiates the revegetation process. Plants such as Russian thistle, kochia and other
annuals begin to establish. These plants give some protection from erosion and start to build minor
levels of soil organic matter. This early annuai plant community lasts for two to several years. Red
threeawn, sand dropseed and several other early perennials can dominate the plant community for
five to eight years or more. Buffalograss establishes next and dominates for many years. Eventually
western wheatgrass, blue grama and other natives become reestablished.
Transitions or pathways leading to other plant communities are as follows:
. Very lonq term prescribed qrazinq that allows adequate recovery periods following each grazing
event and proper stocking will most likely take this plant community to a buffalograss dominated
plant community and eventually back to the HCPC. This process takes many years (40-80 years
or more).
• Ranqe seedinq followed with prescribed grazing can be used to convert Go-back Land to Seeded
Rangeland which can resemble the HCPC.
Go-back Land (eroded)
Eroded go-back land is created where tillage or farming and severe erosion has occurred. If the
parent material that the original soil developed from is lost, then another ecosite will evolve. If the
same parent material is present, then re-seeding or the slow process of developing soil and
vegetation will start by similar processes as shown in the non-eroded Go-back Land above. This is a
very slow process (100 years or more).
Seeded Rangeland
This plant community can vary considerably depending on how eroded the soil was, the species
seeded, the stand that was established, how long ago the stand was established and the
management of the stand since establishment.
• Continuous prazinq without adequate recovery period between grazing events can shift this plant
community to Go-back Land.
Technical Guide USDA NRCS
Section IIE 10 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Ecological Site Interpretations
Animal Community — Wildlife Interpretations
Western Wheatgrass, Blue Grama, Green Needlegrass, Fourwing Saltbush Plant Community-
Historic Climax Plant Community (HCPC) and Blue Grama/Buffalograss Sod, Western
Wheatgrass and Shrubs Plant Community
Common bird species expected on these communities include Cassin's sparrow, chestnut collared
longspur, lark bunting, western meadowlark, and ferruginous and Swainson's hawks. White-tailed
and black-tailed jackrabbit, badger, pronghorn, coyote, swift fox, plains pocket gopher, long-tailed
weasel, and several species of mice are mammais that commonly use these plant communities.
Reptiles using these communities include western rattlesnake, bullsnake, plains garter snake (if water
is in home range), western hognose snake, racer, western box turtle, and six-lined racerunner.
Blue Grama/Buffalograss Sod with Cool Season Remnants Plant Community
The reduction of shrubs and taller grasses in this plant community results in a shift of bird species
away from the HCPC birds. Lark bunting, chestnut-collared longspur, and western meadowlark use
declines and Cassin's sparrow stop using the community aitogether. Habitat conditions are ideal for
long-billed curiew. McCown's longspur, burrowing owl, mountain plover, killdeer, and horned lark
begin using this community. Ferruginous and Swainson's hawks are frequent users of this community
Most mammals will be the same as in the HCPC, howeverjackrabbit, black-tailed prairie dog, desert
cottontail, and thirteen-lined ground squirrel use will increase because of the changing plant
community. Reptiles using this community are the same as in the HCPC.
Low Plant Density, Excessive Litter Plant Community; Blue Grama/Buffalograss Sod Plant
Community; Red Threeawn, Annuals, Bare Ground Plant Community; and Go-back Land Plant
Community
Burrowing owl, mountain plover, horned lark, McCown's longspur, killdeer, and long-billed curlew use
these piant communities. With the exception of the hawk species, no HCPC bird species would
frequent these communities. Jackrabbit, black-tailed prairie dog, thirteen-lined ground squirrel, and
desert cottontail rabbit are frequent users of these communities. All other mammal species from the
HCPC may use the community. Reptiles using these communities exclusively are short-horned lizard
and lesser earless lizard. Other reptiles using these communities include the species listed for the
HCPC.
Seeded Rangeland
The wildlife species expected on seeded rangeland would be those Iisted for the plant community the
seeding most resembles.
Other Potential Species
The plains spadefoot is the only common species of frog or toad inhabiting grasslands in Eastern
Colorado. This species requires water for breeding. Tiger salamanders may be found on grassland
sites, but require a water body for breeding. Either of these species may be found in any plant
community if seasonal water requirements are met. Mule and white-tailed deer may use this
ecological site, however the shrub cover is too low to expect more than occasional use. Big brown
bats will use any plant community on this ecological site if a building site is in the area. The gray woif,
black-footed ferret, and wild bison used this ecological site in historic times. The wolf and ferret are
thought to be extirpated from Eastern Colorado. Bison are currently found only as domestic livestock.
Technical Guide USDA NRCS
Section IIE 11 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Animal Preferences (Quarterly - 1,2,3,4t)
Common Name Cattle Sheep Horses Deer Antelope Bison Elk
Gresses and Grass-likes
bluegrama DPPD DPPD DPPD DPPD DPPD DPPD DPPD
bottlebrush squirreltail U D U U U D U U U D U U U D U U U D U U U D U U U D U U
buffalograss DDPD DDPD DDPD DDPD DDPD DDPD DDPD
greenneedlegrass UPDD UPDD UPDD UPDD UPDD UPDD UPDD
Indianricegrass DPDD DPDD DPDD DPDD DPDD DPDD DPDD
littlebluestem UDPU NDDN UDPU NDDN NDDN UDPU UDPU
needleandthread UPDD NDND UPDD NDND NDND UPDD UPDD
redthreeawn NNNN NNNN NNNN NNNN NNNN NNNN NNNN
ringmuhly NNNN UUUU NNNN UUUU UUUU NNNN NNNN
sanddropseed UDUN NUDN UDUN NUDN NUDN UDUN UDUN
sideoats grama U D P U U D P U U D P U U D P U U D P U U D P U U D P U
sixweeks fescue N D N N N D N N N D N N N D N N N D N N N D N N N D N N
westem wheatgrass U P D D U P D D U P D D U P D D U P D D U P D D U P D D
needleleaf sedge U P D D U P D D U P D D U P D D U P D D U P D D U P D D
sun sedge U P D D U P D D U P D D U P D D U P D D U P D D U P D D
forbs
Americanvetch DPPD DPPD DPPD DPPD DPPD DPPD DPPD
Colorado four o'clock U D D U D P P U U D D U D P P U D P P U U D D U U D D U
cutleafevening-primrose U U U U N U U N U U U U N U U N N U U N U U U U U U U U
dottedgayfeather UUDU UDPU UUDU UDPU UDPU UUDU UUDU
ironplant goldenweed U D D U U P P U U D D U U P P U U P P U U D D U U D D U
Louisiana sagewort U U U U U U D U U U U U U U D U U U D U U U U U U U U U
narrowleaf penstemon U D U U U P P U U D U U U P P U U P P U U D U U U D U U
plains bahia N N N N N U U N N N N N N U U N N U U N N N N N N N N N
purpleprairieclover UPPD UPPU UPPD UPPU UPPU UPPD UPPD
scarlet gaura U U D U U D D U U U D U U D D U U D D U U U D U U U D U
scarlet globemallow U D D U U P P U U D D U U P P U U P P U U D D U U D D U
silky crazyweed T T T T T T T T T T T T T T T T T T T T T T T T T T T T
silky sophora T T T T T T T T T T T T T T T T T T T T T T T T T T T T
slimflower scurfpea N N N N N U U N N N N N N U U N N U U N N N N N N N N N
wavyleaf thistle U U D U U D D U U U D U U D D U U D D U U U D U U U D U
westernragweed UDUU UDUU UDUU UDUU UDUU UDUU UDUU
woolly Indianwheat U U U U U U U U U U U U U U U U U U U U U U U U U U U U
woolly locoweed T T T T T T T T T T T T T T T T T T T T T T T T T T T T
Shrubs
broom snakeweed N N N N N N N N N N N N N N N N N N N N N N N N N N N N
founving saltbush P D D P P D D P P D D P P D D P P D D P P D D P P D D P
fringed sagebrush U N N U U D D U U N N U U D D U U D D U U N N U U N N U
plainspricklypear NNNN NNNN NNNN NNNN NNNN NNNN NNNN
rubberrabbitbrush N N N D D D D D N N N D D D D D D D D D N N N D N N N D
small soapweed D P N D D P N D D P N D D P N D D P N D D P N D D P N D
winterfat PPPP PPPP PPPP PPPP PPPP PPPP PPPP
N = not used; U = undesirable; D = desirable; P = preferred; T = toxic
t Quarters: 1 —Jan., Feb., Mar.; 2—Apr., May, Jun.; 3—Jul., Aug., Sep.; 4- Oct., Nov., Dec.
Technical Guide USDA NRCS
Section IIE 12 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Cenual High Plains, Southem Part R067BY002CO
Animal Community — Grazing Interpretations
The following table lists suggested initial stocking rates for cattle under continuous grazing (year long
grazing or growing season long grazing) under normal growing conditions however, continuous
grazing is not recommended. These are conservative estimates that should be used only as
guidelines in the initial stages of the conservation planning process. Often, the current plant
composition does not entirely match any particular plant community (described in this ecological site
description). Because of this, a field visit is recommended, in ail cases, to document plant
composition and production. More precise carrying capacity estimates should eventually be
calculated using the following stocking rate information along with animal preference data, particularly
when grazers other than cattle are involved. Under more intensive grazing management, improved
harvest efficiencies can result in an increased carrying capacity.
Plant Community Production Stocking
Rate
(Ibs./acre) (AUM/acre)
Western Wheatgrass, Blue Grama, Green Needlegrass, Fourwing (HCPC) 1300 0.42
Blue Grama/Buffalograss Sod w/Remnant Cool Seasons 700 0.22
Blue Grama/Buffalograss Sod 600 0.19
Low Plant Density, Excessive Litter 850 `
Red Threeawn, Annuals, Bare Ground 100 "
Grazing by domestic livestock is one of the major income-producing industries in the area.
Rangelands in this area provide yearlong forage under prescribed grazing for cattle, sheep, horses
and other herbivores. During the dormant period, livestock may need supplementation based on
reliable forage analysis.
' Highly variable; stocking rate needs to be determined on site.
Hydrology Functions
Water is the principal factor limiting forage production on this site. This site is dominated by soils in
hydrologic group A and B. Infiltration and runoff potential for this site varies from moderate to high
depending on soil hydrologic group and ground cover. In many cases, areas with greater than 75%
ground cover have the greatest potential for high infiltration and lower runoff. An example of an
exception would be where short grasses form a strong sod and dominate the site. Areas where
ground cover is less than 50% have the greatest potential to have reduced infiltration and higher
runoff (refer to NRCS Section 4, National Engineering Handbook (NEH-4)for runoff quantities and
hydrologic curves).
Recreational Uses
This site provides hunting, hiking, photography, bird watching and other opportunities. The wide
varieties of plants that bloom from spring until fall have an esthetic value that appeals to visitors.
Wood Products
No appreciable wood products are present on the site.
Other Products
None noted.
Technical Guide USDA NRCS
Section IIE 13 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Supporting Information
Associated Sites
(0676Y024CO)-Sandy (formerly Sandy Plains)
(067BY008CO)— Loamy Slopes
(067BY036CO)— Overflow
Similar Sites
(067BY009CO)-Siltstone Plains
[western wheatgrass, blue grama and green needlegrass are more productive]
Inventory Data References
Information presented here has been derived from NRCS clipping data, numerous ocular estimates
and other inventory data. Field observations from experienced range trained personnel were used
extensively to develop this ecological site description. Specific data information is contained in
individual landowner/user case files and other files located in county NRCS field offices.
Those involved in developing this site description include: Harvey Sprock, Rangeland Management
Specialist, NRCS; Ben Berlinger, Rangeland Management Specialist, NRCS; Chuck Ring, Rangeland
Management Specialist, NRCS; Dave Cook, Rangeland Management Specialist, NRCS; Scott
Woodall, Rangeland Management Specialist, NRCS; James Borchert, Soil Scientist, NRCS; Dave
Sharman, Resource Conservationist, NRCS; Terri Skadeland, Biologist, NRCS.
State Correlation
This site is specific to Colorado (formerly Loamy Plains).
Field Offices
Akron, Brighton, Burlington, Byers, Cheyenne Wells, Eads, Flagler, Fort Collins, Fort Morgan,
Greeley, Holly, Hugo, Kiowa, Lakewood, Lamar, Longmont, Simla, Springfield, Sterling
Technical Guide USDA NRCS
Sec[ion IIE 14 Rev. 3/04
Site Type: Rangeland Loamy
MLRA: 67B - Central High Plains, Southern Part R067BY002CO
Other References
High Plains Regional Climate Center, University of Nebraska, 830728 Chase Hall, Lincoln, NE
68583-0728. (http://hpccsun.unl.edu)
USDA, NRCS. National Water and Climate Center, 101 SW Main, Suite 1600, Portiand, OR 97204-
3224. (http://wcc.nres.usda.gov)
USDA, NRCS. National Range and Pasture Handbook, September 1997
USDA, NRCS. National Soil Information System, Information Technology Center, 2150 Centre
Avenue, Building A, Fort Collins, CO 80526. (http://nasis.nres.usda.gov)
USDA, NRCS. 2004. The PLANTS Database, Version 3.1 (http://plants.usda.gov). National Plant
Data Center, Baton Rouge, LA 70874-4490 USA.
Andrews, R. and R. Righter. 1992. Colorado Birds. Denver Museum Nat. Hist., Denver, CO. 442 pp.
Armstrong, D.M. 1972. Distribution of mammals in Colorado. Univ. Kansas Museum Nat. Hist.
Monograph #3. 415 pp.
Colorado Breeding Bird Atlas. 1998. Hugh Kingery, Ed., Dist. CO Wildlife Heritage Found., P.O. Box
211512, Denver, CO, 80221. 636 pp.
Fitzgerald, J.P., C.A. Meaney, and D.M. Armstrong. 1994. Mammals of Colorado. Denver Museum
Nat. Hist. Denver, CO. 467 pp.
Hammerson, G.A. 1986. Amphibians and reptiles in Colorado. CO Div. Wild. Publication Code DOW-
M-I-3-86. 131 pp.
Rennicke, J. 1990. Colorado Wildlife. Falcon Press, Helena and Biliings, MT and CO Div. Wiidlife,
Denver CO. 138 pp.
Site Description Approval
State Range Management Specialist Date
Technical Guide USDA NRCS
Section IIE 15 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Cenual High Plains, Southern Part R067BY035CO
United States Department of Agriculture
Natural Resources Conservation Service
Ecological Site Description
Wyomin
Site Type: Rangeland
Neb ask
Site Name: Salt Meadow 67
Site ID: R067BY035CO
Major Land Resource Area: 676 —Central High Plains, Southern Part
Physiographic Features
This site occurs on level to gently sloping slopes. Ke Sas
C I rado
Landform: floodplain Aspect: N/A
Minimum Maximum
Elevation (feet): 3800 5600
Slope (percent): 0 3
Water Table Depth (inches): 12 48
Flooding:
Frequency: rare occasional
Duration: brief very brief
Ponding:
Depth (inches): 0 0
Frequency: none none
Duration: none none
Runoff Class: low high
Climatic Features
The mean average annual precipitation varies from 12 to 16 inches per year depending on location
and ranges from less than 8 inches to over 20 inches per year. Approximately 75 percent of the
annual precipitation occurs during the growing season from mid-April to late-September. Snowfall can
vary greatly from year to year but averages 35 to 45 inches per year. Winds are estimated to average
about 9 miles per hour annually, ranging from 10 miles per hour during the spring to 9 miles per hour
during late summer. Daytime winds are generally stronger than nighttime and occasional strong
storms may bring periods of high winds with gusts to more than 90 miles per hour.
The average length of the growing season is 142 days, but varies from 129 to 154 days. The average
date of first frost in the fall is September 28, and the last frost in the spring is about May 9. July is the
hottest month and December and January are the coldest. It is not uncommon for the temperature to
exceed 100 degrees F during the summer. Summer humidity is low and evaporation is high. The
winters are characterized with frequent northerly winds, producing severe cold with temperatures
dropping to -35 degrees F or lower.
Technical Guide USDA NRCS
Section IIE 1 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Cenual High Plains, Southem Part R067BY035CO
Growth of native cool season plants begins about March 15 and continues to about June15. Native
warm season plants begin growth about May 15 and continue to about August 15. Regrowth of cool
season plants occurs in September and October of most years, depending on moisture.
Minimum Maximum
Frost-free period (days): 129 154
Freeze-free period (days): 151 178
Mean Annual Precipitation (inches): 12 16
Average Monthly Precipitation (inches) and Temperature (°F):
Preci . Min. Preci . Max Tem . Min. Tem . Max.
Janua 0.32 0.36 12.0 45.1
Februa 0.26 0.38 15.9 50.9
March 0.83 0.87 22.3 58.9
A ril 1.28 1.38 30.1 69.1
Ma 2.32 2.49 39.9 78.0
June 1.93 2.57 49.0 88.7
Jul 1.42 2.31 55.0 93.9
Au ust 1.07 2.38 53.5 91.9
Se tember 1.02 1.40 43.8 83.8
October 0.89 1.00 32.5 72.9
November 0.52 0.53 20.9 57.4
December 0.34 0.37 11.9 46.9
Climate Stations Period
Station ID Location or Name From To
CO0945 Bri sdale 1948 2000
CO4076 Holl 1918 2000
CO9147 Windsor 1948 1990
For local climate stations that may be more representative, refer to http://www.wcc.nres.usda.gov.
Influencing Water Features
This ecological site has a combination of physical and hydrological features that: 1) provide season-
long ground water within 3.5 feet of the surface, 2) allows relatively free movement of water and air in
the upper part of the soil, and 3) are rarely, or occasionally flooded.
Wetland Description: Svstem Subsystem Class Sub-class
Cowardin, et al., 1979 Palustrine N/A Emergent Wetland Persistent
Technical Guide USDA NRCS
SecUon IIE 2 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Representative Soil Features
The soils of this site are very deep, poorly to somewhat pooriy drained, and slowly to moderate rapidly
permeable. These soils occur on floodplains. Some soils have 0-15% rock fragments in underlying
material. The available water capacity is typically low to moderate. The soil surface layer is typically
6 to 24 inches thick.
The Historic Climax Plant Community (HCPC) should show slight to no evidence of rills, wind scoured
areas or pedestalled plants. Water flow paths are broken, irregular in appearance or discontinuous
with numerous debris dams or vegetative barriers. The soil surface is stable and intact. Sub-surface
soil layers are non-restrictive to water movement and root penetration.
Major soil series correlated to this ecological site include: Apishapa, Heldt saline, Limon saline,
Loveland, Wann saline and Las saline
Other soil series that have been correlated to this site include: Nunn wet*, Alda var., and Wann
* Nunn wet is typically found on terraces and lacks a water table.
Parent Material Kind: alluvium
Parent Material Origin: mixed
Surface Texture: clay loam, loam, fine sandy loam
SurFace Texture Modifier: none
Subsurface Teuture Group: loamy
Surface Fragments 5 3" (% Cover): 0
Surface Fragments > 3" (%Cover): 0
Subsurface Fragments 5 3" (%Volume): 0 - 15
Subsurface Fragments > 3" (%Volume): 0
Minimum Maximum
Drainage Class: poorly somewhat poorly
Permeability Class: slow moderately rapid
Depth (inches): 60 80
Electrical Conductivity (mmhos/cm)*: 2 16
Sodium Absorption Ratio': 5 30
Soil Reaction (1:1 Water)*: 7.4 9A
Available Water Capacity (inches)*: 4.5 6.5
Calcium Carbonate Equivalent (percent)*: 0 10
*These attributes represent 0-40 inches in depth or to the first restrictive layer.
Technical Guide USDA NRCS
Section IIE 3 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Plant Communities
Ecological Dynamics of the Site:
Continuous grazing without adequate recovery periods following each grazing occurrence will cause
prairie cordgrass, switchgrass, alkali sacaton and eventually western wheatgrass to decrease in
frequency and production while inland saltgrass increases. In time, the plant community will become
dominated by inland saitgrass and develop into a sodbound condition with alkali sacaton and western
wheatgrass persisting in remnant amounts. Heavy continuous grazing will ultimately result in a plant
community dominated by foxtail barley, annual invaders and increased bare ground. Excessive litter,
plant mortality and decadence can result from the lack of fire and/or non-use. Extended periods of
non-use (rest), lack of fire or heavy long term continuous grazing can lead to increase bare ground.
Tillage or any type of inechanical treatment is not recommended on this site since it will increase
inland saltgrass.
Irrigation (pumping) or drainage will cause water table levels to drop. Sustained reduction in water
table levels will cause a different ecological site to develop.
The historic climax plant community (description follows the plant community diagram) has been
determined by study of rangeland relic areas, areas protected from excessive disturbance, seasonal
use pastures, short durationl/time controlled grazing and historical accounts.
The following diagram illustrates the common plant communities that can occur on the site and the
transition pathways (arrows) among communities. Bold lines surrounding each plant community or
communities represent ecological thresholds. The ecological processes are discussed in more detail
in the plant community descriptions following the diagram.
Plant Communities and Transitional Pathways
Increased InlandSaltgrass; �� ��Inland Saltgraas Sod� '
. Reduced Mid�and Tall wifh ocwithout Westem`
�Cool and Warm�Season Whea�rass:and/or� �
� Grasses� � �� ��Alkali Sacaton��
� � � � LTPG � �
PG CG LTPG HCG,
ED
.Alkali Sacaton Fwcfail Barley,
Westem Wheatgrass : �Mnuals,
SWitchBreu Bare Ground
�Prairie�Cordgress
(HCPC)
LTNU, q�y Pla�t
NU,NF PG NF Community
Tilled and
. .. . . Abandoned
DecadeniPlants,
� Excessive Litter � . �Go-back Land �
RS
Drained or
Lowered
DIFFERENT WaterTable
ECOLOGICAL SITE ���ngeland
CG-continuous grazing without adequate rewvery opportunity;ED-ezcessive
defoliafion;HCG-heavy continuous grazing;HCPC-Historic Clim�Plant
Community;LTNU-long tertn non-use(>40 years);LTPG-long term prescribed
grazing(>40 years);NF,NU-no fire,non-use;PG-prescribed grazing with adequate
recovery opportuniry;RS•range seeding
Technical Guide USDA NRCS
Section IIE 4 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Plant Community Composition and Group Mnual Produdion
Nkali Sataton�YWstem Wheat9rass,
SviKh Prairie Cord rass FiCPC
CAMMOWGROUP NAME SqENfIFIC NAME SYMBOL Group IbsJaere %Co
.��.;GRASSE5:8.GRASSLflgS � . . ' . �
alkalisapton robdusairoides SPAI � 900-1050 30-35
westem wfiea rass Pa m srrithii PASM 1 450-690 15-23
swi rass Paniamvi atum PAVI2 1 450-660 15-22
irieco rass S rtina inap SPPE 1 300-600 10-20
alkali Sandbe blu rass Poaseanda POSE 1 90-300 3-10
bi bluestem Mdro n rardii ANGE 1 60-210 2-7
alkahm rass S rtina raalis SPGR 1 30-150 1-5
nada wild EI canadensis ELCA4 1 30-150 1 -5
littlebluestem Scti¢ach 'um rium SCSC 1 30-150 1 -5
India rass hasVum nufans SONU2 1 0-150 0-5
inlandsal rass Distichlis iqta DISP 1 30-90 1 -3
slender whea rass EI Vach ulus ELTR7 1 30-90 1 -3
Nuttall'salkali rass Pucdnellianuttalliana PUNU2 1 30-60 �-2
vine uRe south PanicumobWsum PAOB 1 0-60 0-2
alkalimuhl fvt�hlen iaracemosa MURA 1 0-30 0-1
foxfailbarle Hordeum'ubatum HOJU 1 0-30 0-1
Balticnrsh Juncusbaltias JUBA 1 30-90 �-3
Nebraska sed e Carex nebrascensis CANE2 1 30-90 1-3
otlier rennial rass-likes 2GLP 1 30-90 1-3
other 2nnial rasses 2GP 1 30-150 1-5
. :.:FpRBS . . . . . . 2 . ..90-300 3-�10
Mienpn hoorice � GI iza I idota Gl.LE3 2 30-150 1-5
2 su Iva xanthifolia lVXA 2 0-90 0-3
s rairie entian Eustomae�ralhaWmss .russellianum EUEXR 2 0-60 0-2
false boneset Bnckdlia eu torioides BREU 2 0-30 0-1
Fiemont dernveed Oon �s foliosa var.fdiosa OOFOF 2 0-30 0-1
Illinoisbundleflower Desmanthusillinoensis DEIL 2 0-30 0-1
other nnial forbs 2FP 2 30-150 1-5
� .. ��� � 3 �60-300 .2-10
fourwi saltbush Atri ex qnescens ATCA2 3 0-150 0-5
rubberrabbitbrush Eripmeria nauseasa .nauseosavar.nauseosa ERNAN5 3 30-60 1 -2
o er ru
� Mnual ProtluctionAbaJaae ..LOW � RV'. �HIGH�
GRASSES 8 GRASSL0�5 1860• 2625 •3350
PoRBS 85- 195 �325
SIIRUBS 55- 180 �325
TOTAL 2 �4000
T1151131Nf�aRsadNa�r9eA�eW�+&¢GEaim��mtY�ifi FlUCOBEp�51n3p'n�¢rtp Eaia�l�dp.epO]uL4]imA'�hvn�b�IfG¢�9NHi1�S�V�p��IXdln
tllmaAC fecbrs.'RV-Repasa'0�'�e V9�e.
Technical Guide USDA NRCS
Section IIE 5 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Plant Community Narratives
Following are the narratives for each of the described plant communities. These plant communities
may not represent every possibility, but they probabiy are the most prevalent and repeatable plant
communities. The plant composition table shown above has been developed from the best available
knowledge at the time of this revision. As more data is collected, some of these plant communities
may be revised or removed, and new ones may be added. None of these plant communities should
necessarily be thought of as "Desired Plant Communities". According to the USDA NRCS National
Range and Pasture Handbook, Desired Plant Communities wiil be determined by the decision makers
and will meet minimum quality criteria established by the NRCS. The main purpose for including any
description of a plant community here is to rapture the current knowledge and experience at the time
of this revision.
Alkali Sacaton, Western Wheatgrass, Switchgrass, Prairie Cordgrass Plant Community
This plant community is the interpretive plant community for this site and is considered to be the
Historic Climax Plant Community (HCPC). This community evolved with grazing by large herbivores
and is well suited for grazing by domestic livestock. Historically, fires occurred infrequently. This
plant communiry can be found on areas that are grazed and where the grazed plants receive
adequate periods of recovery during the growing season. The potential vegetation is about 80-95%
grasses and grass-likes, 3-10%forbs and 2-10% woody plants.
The community is dominated by tall and mid warm and cool season grasses. Major grasses include
alkali sacaton, switchgrass, prairie cordgrass and western wheatgrass. Other grasses and grass-likes
occurring on the community include alkali bluegrass, big bluestem, little bluestem, alkali cordgrass,
Baltic rush and Nebraska sedge. Key forbs and shrubs include American licorice, prairie gentian, rag
sumpweed, rubber rabbitbrush and fourwing saltbush.
This plant community is stable and well adapted to the Northern Great Plains. The high water tabie
supplies much of the moisture for piant growth. Plant litter is properly distributed with little movement
and natural plant mortality is very low. This is a sustainable plant community in terms of soil stability,
watershed function and biologic integrity.
Total annual production ranges from 2000 to 4000 pounds of air-dry vegetation per acre and will
average 3000 pounds during an average year.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6713
Growth curve name: Warm season dominant, cool season sub-dominant; MLRA-676; lowland water
influenced soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 2 8 20 30 20 12 5 3 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Continuous prazinq without adequate recovery periods between grazing events will shift this plant
community initially toward the Increased Inland Saltgrass; Reduced Mid and Tall Cool and Warm
Season Grasses Plant Community.
• Non-use (no qrazinq and/or no havinq) and no fire will move this plant community toward the
Decadent Plants, Excessive Litter Plant Community. Initially, excess Iitter begins to build-up.
Eventually native plants can show signs of mortality and decadence.
Technical Guide USDA NRCS
Section IIE 6 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
. Prescribed qrazinq that allows for adequate recovery opportunity following each grazing event and
proper stocking will maintain the Alkali Sacaton, Westem Wheatgrass, Switchgrass, Prairie
Cordgrass Plant Community(HCPC).
Increased Inland Saltgrass; Reduced Mid and Tall, Cool and Warm Season Grasses
Plant Community
This plant community developed with continuous grazing without adequate recovery opportunities
between grazing events. Inland saltgrass has increased and dominates the community. Alkali
sacaton, prairie cordgrass, switchgrass, indiangrass, little bluestem, Canada wildrye and Nebraska
sedge have been significantly reduced. Western wheatgrass and alkaii bluegrass may initially
increase or decrease depending upon the season of use. Forbs and shrubs are still present in
reduced amounts. This plant community is at risk of losing warm season tall grasses, palatable forbs
and shrubs.
This community has decreased in plant frequency and production. Less litter can be expected
however, the soil remains stable and can become very resistant to change depending on the degree
to which the inland saltgrass dominates the community.
Totai annual production, during an average year, ranges from 1000 to 2000 pounds per acre air-dry
weight and will average 1500 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-676. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6713
Growth curve name: Warm season dominant, cool season sub-dominant; MLRA-676; lowland water
influenced soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 2 8 20 30 20 12 5 3 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Continuous qrazinq without adequate recovery periods between grazing events will shift this plant
community across an ecological threshold toward the Inland Saltgrass Sod with or without
Western Wheatgrass and/orAlkali Sacaton Plant Community.
. Prescribed arazinp with adequate recovery periods between grazing events will move this plant
community back toward the Alkali Sacaton, Western Wheatgrass, Switchgrass, Prairie Cordgrass
Plant Community(HCPC).
Decadent Plants, Excessive Litter Plant Community
This plant community developed under the absence (20 years or more) of grazing, fire and/or haying.
The dominant plants tend to be somewhat similar to those found in the Historic Climax Plant
Community.
Grazing, haying or fire followed by prescribed grazing can quickly move this plant community back
toward the HCPC. Much of the nutrients are tied up in excessive litter. Some organic matter oxidizes
in the air rather than being incorporated into the soil due to the absence of animal impact. Excessive
litter levels prevent sunlight from reaching plant crowns and in time can stagnate the plant community.
Bunchgrasses such as alkali sacaton, little bluestem and switchgrass have a tendency to exhibit dead
centers and eventually entire plants can die off.
Technical Guide USDA NRCS
Section IIE 7 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Total annuai production can vary substantially from 800 to 3000 pounds of air-dry vegetation per acre
depending on how long this plant community has developed in the absence of haying, grazing or fire.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6715
Growth curve name: Warm season/cool season co-dominant, excess litter; MLRA-67B; lowland water
influenced soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 1 7 20 35 20 10 5 2 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
. Prescribed qrazinq with adequate recovery opportunities between grazing events or prescribed
burning followed by prescribed grazing will move this plant community toward the Alkali Sacaton,
Westem Wheatgrass, Switchgrass, Prairie Cordgrass Plant Community(HCPC). This can occur
relatively fast.
. Lonq term non-use (no qrazinq, no havinq) in absence of fire will shift this plant community across
an ecological threshold to the Foxtail8arley, Annuals, and Bare Ground Plant Community. This
transition may take greater than 40 years to achieve.
Inland Saltgrass Sod with or without Western Wheatgrass andlor Alkali Sacaton Plant
Community
This plant community develops under continuous grazing without adequate recovery opportunities
between grazing events. The plant community exhibits a dense sod made up of primarily inland
saltgrass. Remnant amounts of western wheatgrass and/or alkali sacaton may still be present. Tall
grasses (prairie cordgrass, big bluestem, Indiangrass, switchgrass) as well as little bluestem,
Nebraska sedge and fourwing saltbush have been removed. Alkali muhly, foxtail barley and Kentucky
bluegrass may be increasing or invading.
This community remains stable but has lost much of its production and diversity. This plant
community is extremely resistant to change because of the aggressive behavior (vigorous rhizomes)
of inland saltgrass. Nutrient cycle is impaired due to the loss of tall grass species, deep-rooted forbs
(legumes and others) and shrubs. Desertification is advanced.
Total annual production, during an average year, ranges from 800 to 1500 pounds per acre air-dry
weight and will average 950 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-676. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6718
Growth curve name: Warm season dominant; MLRA-676; lowland water influenced soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 5 15 40 23 12 3 2 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
Technical Guide USDA NRCS
Section IIE 8 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southem Part R067BY035CO
• Heaw continuous qrazinq or excessive defoliation without adequate recovery periods following
each grazing event will shift this plant community across an ecological threshold to the Foxtail
Barley, Annuals and Bare Ground Plant Community.
• Lonq term qrescribed qrazinp with adequate recovery periods following each grazing occurrence
and proper stocking will move this plant community toward the Increased Inland Saltgrass;
Reduced Mid and Tall Cool and Warm Season Grasses Plant Community and will eventually
return to the HCPC or associated successional stages assuming an adequate seed/vegetative
source is available. This is a long-term transition requiring 40 years or more to accomplish.
Foxtail Barley, Annuals, Bare Ground Plant Community
This pfant community develops under continuous and heavily grazed conditions, especially through
the growing season. The plant composition is made up of foxtail barley, annuals and scattered areas
of inland saltgrass. Annuals such as Russian thistle, kochia and cocklebur have invaded the
community. Kentucky bluegrass may persist in localized areas.
Compared to the Historic Climax Plant Community, all perennial plants have been greatly reduced
with only remnants of the most grazing tolerant species surviving. Plant diversity and production are
very low. Planned rest periods during the growing season will improve the vigor of the plant species
present and eventually reduce the amount of bare ground.
Wind and water erosion may occur at low amounts due to increased bare ground. Litter amounts are
low. Mineral crusting caused by raindrop impact disrupts surface soil aggregates, increasing ponding
and slowing infiltration. Compaction, if severe enough, can affect water infiltration also. Carbon
storage/nutrient cycling has been greatly reduced. Animal wastes can contaminate ground water or
runoff. Desertification is obvious.
Total annual production, during an average year, ranges from 50 to 400 pounds per acre air-dry
weight.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6714
Growth curve name: Cool season dominant, warm season sub-dominant; MLRA-67B; lowland water
influenced soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 2 7 25 40 15 7 3 1 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
. Lonq term prescribed qrazinq with adequate recovery periods between grazing events and proper
stocking, will shift this plant community back toward the Inland Saltgrass Sod with or without
Western Wheatgrass and/orAlkali Sacaton Plant Community assuming an adequate
seed/vegetative source is available. The rate of this transition can be extremely variable
depending on the amount of inland saltgrass remaining on the community.
Technical Guide USDA NRCS
Section IIE 9 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southem Part R067BY035CO
Go-back Land
Go-back land is created when any ptant community is tilled long term (annually cropped) and
abandoned. Ail of the native plants are destroyed and bare soil remains. With time, a plant
community resembling the Fontail Barley, Annuals, Bare Ground Plant Community develops.
Most any plant community associated with the Salt Meadow ecological site, when short-term tilled, will
result in an increased inland saltgrass stand.
Transitions or pathways leading to other plant communities are as follows:
. Ranqe seedinp followed with prescribed grazing can be used to convert Go-back Land to a
Seeded Rangeland Plant Community and to maintain it.
Seeded Rangeland
This plant community can vary considerably depending on how eroded the soil was, species seeded,
the stand that was established, how long ago the stand was established and the management of the
stand since establishment.
Formation of Different Ecological Site
If any plant community is subjected to persistent water table depletion due to irrigation or drainage, a
different ecological site will form. The new site would typically resemble a Salt Flat ecological site.
Technical Guide USDA NRCS
Secdon IIE 10 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Ecological Site Interpretations
Animal Community — Wildlife Interpretations
Alkali Sacaton, Western Wheatgrass, Switchgrass, Prairie Cordgrass Plant Community
Common bird species expected on the HCPC include Cassin's sparrow, chestnut collared longspur,
lark bunting, western meadowlark, and ferruginous and Swainson's hawks. White-tailed and black-
tailed jackrabbit, badger, pronghorn, coyote, swift fox, plains pocket gopher, long-tailed weasel, and
several species of mice are mammals that commonly use this plant community. Reptiles using this
community include western rattlesnake, bullsnake, plains garter snake (if water is in home range),
western hognose snake, racer, western box turtle, and six-lined racerunner.
Decadent Plants, Excessive Litter Plant Community
The wildlife species expected in this plant community are similar to those in the HCPC. Habitat
conditions are poorer than in the HCPC so carrying capacity would be reduced.
Increased Inland Saltgrass; Reduced Mid and Tall, Cool and Warm Season Grasses Plant
Community
Most HCPC species are expected in this plant community. The reduction in mid and tall grasses and
the increase in shorter species will attract burrowing owl, mountain plover, horned lark, McCown's
longspur, killdeer, long-billed curlew, jackrabbit, black-tailed prairie dog, thirteen-lined ground squirrel,
and desert cottontail rabbit.
Inland Saltgrass Sod with or without Western Wheatgrass and/or Alkali Sacaton Plant
Community and Foxtail Barley, Annuals, Bare Ground Plant Community
Burrowing owl, mountain plover, horned lark, McCown's longspur, kiildeer, and long-billed curlew use
these plant communities. With the exception of the hawk species, no HCPC bird species would
frequent this community. Jackrabbit, black-tailed prairie dog, thirteen-lined ground squirrel, and
desert cottontail rabbit are frequent users of this community. All other mammal species from the
HCPC may use the community. Reptiles using these communities exclusively are short-horned lizard
and lesser earless lizard. Other reptiles using these communities include the species listed for the
HCPC.
Go-back Land
The conditions in these communities are marginal for most wildlife species although species from the
Inland Saltgrass Sod Plant Community may occasionally be found here.
Seeded Rangeland
The wildlife species expected on seeded rangeland would be those listed for the plant community the
seeding most resembles.
Other Potential Species
The plains spadefoot is the only common species of frog or toad inhabiting grasslands in Eastern
Colorado. This species requires water for breeding. Tiger salamanders may be found on grassland
sites, but require a water body for breeding. Either of these species may be found in any plant
community if seasonal water requirements are met. Mule and white-tailed deer may use this
ecological site, however the shrub cover is too low to provide escape or hiding cover. On ecological
site locations near riparian areas, deer will use the vegetation for feeding. Big brown bats will use any
plant community on this ecological site if a building site is in the area. The gray wolf, black-footed
ferret, and wild bison used this ecological site in historic times. The wolf and ferret are thought to be
extirpated from Eastern Colorado. Bison are currently found only as domestic livestock.
Technical Guide USDA NRCS
Section IIE 11 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Animal Preferences (Quarterly — 1,2,3,4t)
Common Name Cattle Sheep Horses Deer Antelope Bison Elk
Grasses and Grass-likes
alkali bluegrass U D U D D P U D U D U D D P U D D P U D U D U D U D U D
alkali cordgrass U D D U N U N N U D D U N U N N N U N N U D D U U D D U
alkali muhly U U D U U U D U U U D U U U D U U U D U U U D U U U D U
alkali sacaton U D D U N U N N U D D U N U N N N U N N U D D U U D D U
bigbluestem UDPD UDUU UDPD UDUU UDUU UDPD UDPD
Canada wildrye U D U U N U N N U D U U N U N N N U N N U D U U U D U U
foxtailbarley UDNN NPNN UDNN NPNN NPNN UDNN UDNN
Indiangrass UDPD UDUU UDPD UDUU UDUU UDPD UDPD
inlandsaltgrass NUUN NNNN NUUN NNNN NNNN NUUN NUUN
little bluestem U D P U N D D N U D P U N D D N N D D N U D P U U D P U
Nuttali's alkaligrass U P D D P P P P U P D D P P P P P P P P U P D D U P D D
prairiecordgrass UDDU NNNN UDDU NNNN NNNN UDDU UDDU
slenderwheatgrass UPUU NDUN UPUU NDUN NDUN UPUU UPUU
switchgrass UDDU UDUU UDDU UDUU UDUU UDDU UDDU
vine mesquite U D P U U D D U U D P U U D D U U D D U U D P U U D P U
westem wheatgrass U P D D U P D D U P D D U P D D U P D D U P D D U P D D
Baltic rush N N N N N N N N N N N N N N N N N N N N N N N N N N N N
Nebraska sedge U P U D U P N D U P U D U P N D U P N D U P U D U P U D
Forbs
American licorice U U D U N U U N U U D U N U U N N U U N U U D U U U D U
false boneset U U D U N D U N U U D U N D U N N D U N U U D U U U D U
Fremont goldenweed U U U U N U U N U U U U N U U N N U U N U U U U U U U U
Illinois bundleflower U D U U U D D U U D U U U D D U U D D U U D U U U D U U
rag sumpweed U U U U N N N N U U U U N N N N N N N N U U U U U U U U
showy prairie gentian U U U U N U U N U U U U N U U N N U U N U U U U U U U U
Shrubs
fourwing saltbush P D D P P D D P P D D P P D D P P D D P P D D P P D D P
rubber rabbitbrush N N N D D D D D N N N D D D D D D D D D N N N D N N N D
N = not used; U = undesirable; D = desirable; P = preferred; T = toxic
t Quarters: 1 —Jan., Feb., Mar.; 2 —Apr., May, Jun.; 3—Jul., Aug., Sep.; 4—Oct., Nov., Dec.
Technical Guide USDA NRCS
Section IIE 12 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Animal Community — Grazing Interpretations
The following table lists suggested initial stocking rates for cattle under continuous grazing (year long
grazing or growing season long grazing) under normal growing conditions however, continuous
grazing is not recommended. These are conservative estimates that shouid be used only as
guidelines in the initial stages of the conservation planning process. Often, the current plant
composition does not entirely match any particular plant community (described in this ecological site
description). Because of this, a field visit is recommended, in all cases, to document plant
composition and production. More precise carrying capacity estimates shouid eventually be
calculated using the following stocking rate information along with animal preference data, particularly
when grazers other than cattle are involved. Under more intensive grazing management, improved
harvest efficiencies can result in an increased carrying capacity.
Plant Community Production Stocking
Rate
(Ibs./acre) (AUM/acre)
Alkali Sacaton, Western Wheatgrass, Switchgrass, Cordgrass (HCPC) 3000 0.96
Increased Inland Saltgrass; Reduced Mid/Tall Warm and Cool Season 1500 0.48
Inland Saltgrass Sod 950 0.30
Decadent Plants, Excessive Litter ` '
Foxtaii Barley, Annuals, Bare Ground � "
Grazing by domestic livestock is one of the major income-producing industries in the area.
Rangelands in this area provide yearlong forage under prescribed grazing for cattle, sheep, horses
and other herbivores. During the dormant period, livestock may need supplementation based on
reliable forage analysis.
' Highly variable; stocking rate needs to be determined on site.
Hydrology Functions
Water is the principal factor limiting forage production on this site. This site is dominated by soils in
hydrologic group C and D. Infiltration is moderate and runoff potential for this site varies from
moderate to high depending on ground cover. Areas where ground cover is less than 50% have the
greatest potential to have reduced infiltration and higher runoff(refer to NRCS Section 4, National
Engineering Handbook (NEH-4)for runoff quantities and hydrologic curves).
Recreational Uses
This site provides hunting, hiking, photography, bird watching and other oppoRunities. The wide
varieties of plants that bloom from spring until fall have an esthetic value that appeals to visitors.
Wood Products
No appreciable wood products are present on the site.
Other Products
None noted.
Technical Guide USDA NRCS
Section IIE 13 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Supporting Information
Associated Sites
(R067BY033CO)- Salt Flat
(R067BY031 CO)- Sandy Bottomland
(R067BY038CO) —Wet Meadow
(R067BY073CO) — Riverbottom
Similar Sites
(R0676Y033CO)- Satt Flat
[lacks water table and tall grass species, less production]
(R0676Y038CO)—Wet Meadow
[lacks alkali species, greater production]
Inventory Data References
Information presented here has been derived from NRCS clipping data, numerous ocular estimates
and other inventory data. Field observations from experienced range trained personnel were used
extensively to develop this ecological site description. Specific data information is contained in
individual landowner/user case files and other files located in county NRCS field offices.
Those involved in developing this site description include: Harvey Sprock, Rangeland Management
Specialist, NRCS; Ben Berlinger, Rangeland Management Specialist, NRCS; James Borchert, Soil
Scientist, NRCS; Terri Skadeland, Biologist, NRCS.
State Correlation
This site is unique to Colorado.
Field Offices
Akron, Brighton, Burlington, Byers, Cheyenne Wells, Eads, Flagler, Fort Collins, Fort Morgan,
Greeley, Holly, Hugo, Kiowa, Lakewood (metro), Lamar, Longmont, Simla, Springfield,
Sterling
Technical Guide USDA NRCS
Section IIE 14 Rev. 3/04
Site Type: Rangeland Salt Meadow
MLRA: 67B - Central High Plains, Southern Part R067BY035CO
Other References
High Plains Regional Climate Center, University of Nebraska, 830728 Chase Hall, Lincoln, NE
68583-0728. (http://hpccsun.unl.edu)
USDA, NRCS. National Water and Climate Center, 101 SW Main, Suite 1600, PoRland, OR 97204-
3224. (http://wcc.nres.usda.gov)
USDA, NRCS. National Range and Pasture Handbook, September 1997
USDA, NRCS. National Soil Information System, Information Technology Center, 2150 Centre
Avenue, Building A, Fort Collins, CO 80526. (http://nasis.nres.usda.gov)
USDA, NRCS. 2004. The PLANTS Database, Version 3.1 (http://plants.usda.gov). National Plant
Data Center, Baton Rouge, LA 70874-4490 USA.
Andrews, R. and R. Righter. 1992. Colorado Birds. Denver Museum Nat. Hist., Denver, CO. 442 pp.
Armstrong, D.M. 1972. Distribution of mammals in Colorado. Univ. Kansas Museum Nat. Hist.
Monograph #3. 415 pp.
Colorado Breeding Bird Atlas. 1998. Hugh Kingery, Ed., Dist. CO Wildiife Heritage Found., P.O. Box
211512, Denver, CO, 80221. 636 pp.
Fitzgerald, J.P., C.A. Meaney, and D.M. Armstrong. 1994. Mammals of Colorado. Denver Museum
Nat. Hist. Denver, CO. 467 pp.
Hammerson, G.A. 1986. Amphibians and reptiles in Colorado. CO Div. Wild. Publication Code DOW-
M-I-3-86. 131 pp.
Rennicke, J. 1990. Colorado Wildlife. Falcon Press, Helena and Billings, MT and CO Div. Wildlife,
Denver CO. 138 pp
Site Description Approval
State Range Management Specialist Date
Technical Guide USDA NRCS
Section IIE 15 Rev. 3/04
Site Type: Rangeland SandsWne Breaks
MLRA: 67B - Central High Plains, Southern Part R067BY056CO
United States Department of Agriculture
Natural Resources Conservation Service
Ecological Site Description
wyom��
Site Type: Rangeland Nab ask
87
Site Name: Sandstone Breaks
Site ID: R0678Y056CO
Major Land Resource Area: 67B— Central High Plains, Southern Part
Physiographic Features Ka sas
This site occurs on nearly level to very steep ridges or breaks. c i .�ao
Sandstone out-cropping is common and can include vertical sandstone
cliffs.
Landform: hills, plains Aspect: N/A
Minimum Maximum
Elevation (feet): 3800 5600
Slope (percent): 0 60
WaterTable Depth (inches): 60 60
Flooding:
Frequency: none none
Duration: none none
Ponding:
Depth (inches): 0 0
Frequency: none none
Duration: none none
Runoff Class: very low high
Climatic Features
The mean average annual precipitation varies from 12 to 16 inches per year depending on location
and ranges from less than 8 inches to over 20 inches per year. Approximately 75 percent of the
annual precipitation occurs during the growing season from mid-April to late-September. Snowfall can
vary greatly from year to year but averages 35 to 45 inches per year. Winds are estimated to average
about 9 miles per hour annually, ranging from 10 miles per hour during the spring to 9 miles per hour
during late summer. Daytime winds are generally stronger than nighttime and occasional strong
storms may bring periods of high winds with gusts to more than 90 miles per hour.
The average length of the growing season is 142 days, but varies from 129 to 154 days. The average
date of first frost in the fall is September 28, and the last frost in the spring is about May 9. July is the
hottest month and December and January are the coldest. It is not uncommon for the temperature to
exceed 100 degrees F during the summer. Summer humidity is low and evaporation is high. The
winters are characterized with frequent northerly winds, producing severe cold with temperatures
dropping to -35 degrees F or lower.
Technical Guide USDA NRCS
Sec[ion IIE 1 Rev. 3l04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southem Part R067BY056CO
Growth of native cool season plants begins about March 15 and continues to about June15. Native
warm season plants begin growth about May 15 and continue to about August 15. Regrowth of cool
season plants occurs in September and October of most years, depending on moisture.
Minimum Maximum
Frost-free period (days): 129 154
Freeze-free period (days): 151 178
Mean Annual Precipitation (inches): 12 16
Average Monthly Precipitation (inches) and Temperature (°F):
Preci . Min. Preci . Max Tem . Min. Tem . Max.
Janua 0.32 0.36 12.0 45.1
Februa 0.26 0.38 15.9 50.9
March 0.83 0.87 22.3 58.9
A ril 1.28 1.38 30.1 69.1
Ma 2.32 2.49 39.9 78.0
June 1.93 2.57 49.0 88.7
Jul 1.42 2.31 55.0 93.9
Au ust 1.07 2.38 53.5 91.9
Se tember 1.02 1.40 43.8 83.8
October 0.89 1.00 32.5 72.9
November 0.52 0.53 20.9 57.4
December 0.34 0.37 11.9 46.9
Climate Stations Period
Station ID Location or Name From To
CO0945 Bri sdale 1948 2000
CO4076 Holl 1918 2000
CO9147 Windsor 1948 1990
For local climate stations that may be more representative, refer to http:!/www.wcc.nres.usda.gov.
Influencing Water Features
Wetland Description: Svstem Subsystem Class Sub-class
None None None None None
Stream Type: None
Technical Guide USDA NRCS
Section IIE 2 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southern Part R067BY056CO
Representative Soil Features
The soils of this site are very shailow to moderately deep, somewhat excessively drained, and
moderately to rapidly permeable. These soils occur on hilis and plains. Some soils have bedrock
at depths of 10 to 40 inches. The available water capacity is typically very low to low. The soil
surface layer is typically 2 to 9 inches thick.
Exposed areas of sandstone are inherent to this site. Where slopes are gentle, water flow paths
shouid be broken, irregular in appearance or discontinuous with numerous debris dams or vegetative
barriers and exhibit slight to no evidence of rills, wind scoured areas or pedestaled plants.
As slopes become steep and bare areas increase, expect to find evidence of wind scouring, water
flow patterns, and pedestaled plants. Sub-surtace soil layers, where not affected by bedrock, are
non-restrictive to water movement and root penetration.
Major soil series correlated to this ecological site include: Tassel, Terry, Treon, Tullock, Bernal, and
Travessilla
Other soil series that have been correlated to this site include: none
Parent Material Kind: residuum
Parent Material Origin: sandstone
Surface Texture: fine sandy ioam, loamy fine sand, stony fine sandy loam
Surface Texture Modifier: stony
Subsurface Te�ure Group: loamy
Surtace Fragments s 3" (% Cover): 0-20
SurFace Fragments > 3" (%Cover): 0-15
Subsurface Fragments 5 3" (% Volume): 0-25
Subsurface Fragments > 3" (% Volume): 0-10
Minimum Maximum
Drainage Class: well somewhat excessively
Permeability Class: moderate rapid
Depth (inches): 10 40
Electrical Conductivity (mmhos/cm)*: 0 2
Sodium Absorption Ratio': 0 0
Soil Reaction (1:1 Water)*: 6.6 9.0
Available Water Capacity(inches)": 2 6
Calcium Carbonate Equivalent (percent)*: 0 15
"These attributes represent 0-40 inches in depth or to the first restrictive layer.
Technical Guide USDA NRCS
Section IIE 3 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southem Part R067BY056CO
Plant Communities
Ecological Dynamics of the Site:
Continuous grazing without adequate recovery periods following each grazing occurrence, wiil initially
cause prairie sandreed, little bluestem, sideoats grama, Indiangrass, sand bluestem, switchgrass,
palatable forbs and shrubs to decrease in frequency and production. Grasses and grass-like plants
such as blue grama, hairy grama and threadleaf sedge will increase. If adequate recovery periods
between grazing events are not allowed during the growing season, blue grama wiil eventually form
into a patchy sodbound appearance. Mid and tall grasses can eventually be removed from the plant
community. Over the long-term, continuous use without adequate recovery opportunities between
grazing events will result in large amounts of bare ground. Species such as red threeawn, sand .
dropseed, small soapweed, broom snakeweed, wormwood, prickleypear cactus and cheatgrass will
increase or invade.
Tillage is not recommended on this site due to steep shallow soils and associated low production
potential.
The historic climax plant community (description follows the plant community diagram) has been
determined by study of rangeland relic areas, areas protected from excessive disturbance, seasonal
use pastures, short durationl/time controlled grazing and historical accounts.
The following diagram illustrates the common plant communities that can occur on the site and the
transition pathways (arrows) among communities. Bold lines surrounding each plant community or
communities represent ecological thresholds. The ecological processes are discussed in more detail
in the plant community descriptions following the diagram.
Plant Communities and Transitional Pathways
CG
�Blue Grama with � . Blue Grama �
Decreased Mid/Tall Sod,7hreadleaf
Grasses and 5hrtibs�� � . Sedge �
LTPG
PG CG
LTPG CG
P2irieSandreed
� ��LittleBluestem .
Sideoats Grama.� � 'Bare:Ground,.
� � SI1Nb5 � � �
� �(HCPC) � � BantlDropseed,
Red Threeawn,
Annuals
NU, NF PG
Low Plant Density, .
� �Excessive Litter
CG-continuous grazing without adequate recovery opportunity, HCPC-Historic
Climax Plant Community, LTPG-long-term prescribed grazing(>40 years),
NF,NU-no f re, non-use, PG -prescribed grazing with adequate recovery
opportunity
Technical Guide USDA NRCS
Section IIE 4 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Centrai High Plains, Southern Part R067BY056CO
Plant Community Composition and Group Annual Production
P2rte anree , ittleBluestem, iEeoats
GremaantlShrubs HCPC
COMMON/GROUP NAME SCIENTIFIC NAME SYMBOL Group Ibs./aere X Comp
. RASSE5:6 GRAS&WKES � � �
little bluestem Schizach num sco arium SCSC 7 110-�165 10-15
rairie sandreed alamovil(a lon ifolia CALO 1 110-165 10-75
sideoats rema Boutelouacurti ndula BOCU 1 55-165 5-15
blue rema Bouteloua racilis B R2 1 55-710 5-70
sandbluestem Andro 0 onhallii ANHA 1 22-110 2-10
bi bluestem Andro on ererdii ANGE 1 22-77 2-7
needleandthread Hes erosti a comata ss .comata HECOCS 1 22-77 2-7
Indian rass So hastrumnutans SONU2 1 0-55 0-5
switch ress anicumvv atum PAVI2 1 0-55 0-5
westem wheat ress Pasco rum smithii PASM 1 11-33 1 -3
Canada wild e EI mus canadensis EL A4 1 11-22 1 -2
rairie'une rass Koeleria macrenNa KOMA 1 17-22 1 -2
sand tlro seetl S orobolus c tandrus SPCR 7 11-22 1 -2
thicks ike wheat rass EI mus lanceolatus ss .lanceolatus ELLAL 1 11-22 1 -2
bottlebrushs uirreltail EI musel moidesss .el moides ELELE 7 0-11 0-1
reenmuhl Muhlenbe iaracemosa MURA 7 0-11 0-1
hai rema Bouteloua hirsuta B HI2 1 0-11 0-7
Indianrice ress Achnatherumh menoides A H 1 0-11 0-1
lainsmuhl Muhlenber iacus idata MUCU3 1 0-17 0-1
red ihreeawn Aristida ur urea var.lon iseta ARPUL 1 0-11 0-1
rin muhl Muhlenber iatorre i MUTO2 1 0-71 0-t
sun sed e Carex ino s ss .helio hila CAINH2 1 71 -33 1 -3
threadlea sed e Carex filifolia CAFI 1 11 -22 1 -2
other erennial 25ses 2GP 1 11-55 1 -5
�...^fOReS � �� � � � 2 � �55-165 5 -15
dotted a� eather Liatris unctata LIPU 2 11-22 1 -2
u le reirie clover Dalea u urea DAPU5 2 i i-22 1 -2
Americanvetch Viciaamencana VIAM 2 0-11 0-1
annualbuckwheat Eno onumannuum ERAN4 2 0-11 0-1
Colorado reenthread Theles ermafilifolium THFI 2 0-11 0-1
cutlea evenin - nmrose enothera corono i olia OE O2 2 0-11 0-1
hai oltlaster Heferotheca villosa HEVI4 2 0-11 0-1
heath aster S m h otrichum ericoides � VER 2 0-11 0-1
iron lant oldenweed Machaerenthera innatifiAass . innatifldavar. innatifida MAPIP4 2 0-11 0-1
Louisiana sa ewort Artemisia ludoviciana ARLU 2 0-11 0-1
nartowlea nstemon enstemonan ustifolius P AN4 2 0-11 0-1
Nuttall'sevolvuWs EvolvuWsnuttallianus EVNU 2 0-11 0-1
aci ic eavine Lath rus ol mo hus LAP 2 2 0-11 0-1
rairies iderwort TredescantiaoccidenWlis TR 2 0-11 0-1
rushskeletonweed L odesmia�uncea LYJU 2 -it 0-1
santl lil Leucocnnum montanum LEMO4 2 0-11 0-1
scarlet lobemallow haeralceacoccinea SPC 2 0-11 0-1
slimflowerscurf ea Psoralidiumtenuiflorum P TE5 2 0-11 0-1
stemlessh menox s Tetreneurisacaulis TEAC 2 0-11 0-1
s[icklea mentzelia Mentzelia deca etala MED 2 2 0-11 0-1
Texas croton Croton texensis CRTE4 2 0-71 0-7
u ri ht rairieconeflower Ratibidacolumnifera RACO3 2 0-11 0-1
variablesenecio Packeraneomexicanavar. mutabilis PANEM 2 0-11 0-1
westemra weed Ambrosia silostach a AMP 2 0-11 -t
wooll Indianwheat Planta o ata onica PLPA2 2 0-71 0-7
wooll locoweetl Astra alusmoilissimus ASMO7 2 0-'11 0-1
wormwood Artemisiadrecunculus ARDR4 2 0-71 0-t
other erennialforbs 2FP 2 71 -55 1 -5
- SHRUBS � � 3 .��. 55—.165 �5 -15
chokeche Prunus vir iniana var.vi iniana PRVIV 3 71 -33 1 -3
western sandcher Prunus umila var.besse i PRPUB 3 71 -33 1 -3
fourv+in saltbush Atri lex canescens ATCA2 3 11 -22 1 -2
olden currant Ribes aureum RIAU 3 11 -22 1 -2
s readin buckwheat Erio onum effusum EREF 3 11 -22 1 -2
wax currant Ribes cereum RICE 3 71 -22 1 -2
winte at Krascheninnikovia lanata KRLA2 3 11 -22 1 -2
skunkbushsumac Rhustrilobata RHTR 3 0-22 0-2
broomsnakeweed C�utierteziasarothrae GUSA2 3 � 0-11 0-1
lead lant Amo ha canescens AMCA6 3 0-71 0-1
lains rickl ear O untia ol acantha OPPO 3 0-11 0-1
u le inwshion Escobariavivi aravar.vivi are ESVIV 3 0-71 0-1
small soa weed ucca lauca YU L 3 0-11 0-1
o er na ive s ru s - -
Annual ProCuction Ibslacre LOW RV' HIGH
GRASSESBGRASS-LIKES 600- 880 -1260
FOR85 50- 110 �170
SHRUBS 0- 110 �17
TOTAL 7 . � .�
rn�nrno�ci.��:d,aiMn,.i.weo,00��o�..r.e...eo��....o,m.iqwn.ri�w.00�:�i�:c«i.:�oTw.�oo�.�ar.i.u..v,m����o�m.y�n.�eeuomwriow.�aroem.m�w�cr«irvi.uo�o.omer
a�me�k�.nor:.�av-�va...m.nw..iww.���.iw��ouo�oi.�o�xo„eoa..meu�we�.
Technical Guide USDA NRCS
Section IIE 5 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southern Part R067BY056CO
Plant Community Narratives
Following are the narratives for each of the described plant communities. These plant communities
may not represent every possibility, but they probably are the most prevalent and repeatable plant
communities. The plant composition table shown above has been developed from the best available
knowledge at the time of this revision. As more data is collected, some of these plant communities
may be revised or removed, and new ones may be added. None of these plant communities should
necessarily be thought of as "Desired Plant Communities". According to the USDA NRCS National
Range and Pasture Handbook, Desired Plant Communities will be determined by the decision makers
and will meet minimum quality criteria established by the NRCS. The main purpose for including any
description of a plant community here is to capture the current knowledge and experience at the time
of this revision.
Prairie Sandreed, Little Bluestem, Sideoats Grama and Shrubs Plant Community
This plant community is the interpretive ptant community for this site and is considered to be the
Historic Climax Plant Community (HCPC). This community developed with grazing by large
herbivores and is suited to grazing by domestic livestock. Historically, fires likely occurred
infrequently. This plant community can be found on areas where grazed plants receive adequate
periods of recovery during the growing season. The potential vegetation is about 70-90% grasses
and grass-likes, 5-15% forbs and 5-15% woody plants.
Mid and tall grasses dominate this community. The principal grasses are prairie sandreed, little
bluestem and sideoats grama. Secondary grasses are blue grama, switchgrass and
needleandthread. Other important grasses are sand bluestem, big bluestem and Indiangrass.
Threadleaf and sun sedge are common. Dominant forbs are American vetch, dotted gayfeather,
purple prairie clover and upright prairie coneflower. Key shrubs are chokecherry, western sandcherry,
golden and wax currant.
This is a sustainable plant community in terms of soil stability, watershed function and biological
integrity. Litter is properly distributed where vegetative cover is continuous. Some litter movement
may occur on steeper, wind swept slopes. Decadence and natural plant mortality is very low.
Community dynamics, nutrient cycle, water cycle and energy flow are functioning properly. This
community is resistant to many disturbances except continuous grazing, tillage and/or development
into urban or other uses. Areas having lost all vegetation, such as livestock and vehicle trails are
subject to wind and water erosion.
Total annual production, during an average year, ranges from 700 to 1600 pounds of air-dry weight
and will average 1100 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth wili typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6709
Growth curve name: Warm season dominant, cool season sub-dominant; MLRA-67B; upland coarse
te�ured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 2 7 25 35 15 10 5 1 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Continuous arazina without adequate recovery periods between grazing events will shift this plant
community to the Blue Grama with Decreased Mid/Tall Grass and Shrubs Plant Community.
Tecluucal Guide USDA NRCS
Section IIE 6 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southern Part R067BY056CO
. Non-use (rest) and no fire will move this plant community to the Low Plant Density, Excessive
Litter Plant Community.
. Prescribed qrazinq that allows for adequate recovery opportunity following each grazing event and
proper stocking will maintain the Prairie Sandreed, LitHe Bluestem, Sideoats Grama and Shrubs
Plant Community(HCPC).
Blue Grama with Decreased Mid/Tall Grasses and Shrubs Ptant Community
This plant community developed with continuous grazing without adequate recovery periods during
the growing season. Blue grama has increased and is the dominant specie. Prairie sandreed,
switchgrass, sand bluestem, and Indiangrass have been significantly reduced. Little bluestem and
sideoats grama are still present as secondary grasses. American vetch, purple prairie clover,
leadplant, western sandcherry, chokecherry and currants are present in reduced amounts.
Needleandthread may initially increase or decrease depending on the season of grazing use.
Louisiana sagewort, western ragweed, hairy goldaster, slimflower scurfpea, small soapweed and
fringed sagebrush have increased.
Plant frequency, vigor and production have decreased. Reduction of tall, mid and rhizomatous
wheatgrass, nitrogen fixing forbs, shrub component and increased warm season short grass has
begun to alter the biotic integrity of this community. Water and nutrient cycles are becoming impaired.
Litter levels have been reduced. Wind scoured areas and pedestalled plants may be evident.
Total annual production, during an average year, ranges from 350 to 950 pounds of air-dry weight and
will average 650 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6710
Growth curve name: Warm season dominant; MLRA-67B; u land coarse textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 5 20 40 20 10 5 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other piant communities are as follows:
. Continuous prazinp without adequate recovery opportunities between grazing events wiil shift this
plant community across an ecological threshold to the Blue Grama Sod, Threadleaf Sedge Plant
Community.
. Prescribed arazinp with adequate recovery opportunities between grazing events and proper
stocking will move this plant community toward the Prairie Sandreed, Little Bluestem, Sideoats
Grama and Shrubs Plant Community(HCPC).
Low Plant Density, Excessive Litter Plant Community
This plant community developed under many years of non-use (rest) and lack of fire. Plant species
resemble the HCPC however, frequency and production will be reduced. Eventually, litter levels can
become high enough to cause stagnation and mortality of various species such as Indiangrass, sand
bluestem, switchgrass and little bluestem. Bunchgrasses typically develop dead centers and
rhizomatous grasses can form small decadent communities due to a lack of stimulation by grazing
animals.
Technical Guide USDA NRCS
Section IIE 7 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southern Part R067BY056CO
Management changes can easily shift this plant community toward the HCPC. Non-disturbance will
initially increase litter levels, minimizing soil erosion. In advanced stages of non-use (rest) or lack of
fire, plants will begin to die off and bare areas will increase causing an erosion concern.
Total annual production can vary from 250 to 900 pounds of air-dry vegetation per acre and will
average 600 pounds during an average year.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typicaliy be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6711
Growth curve name: Warm season dominant, cool season sub-dominant, excess litter; MLRA-67B;
u land coarse texture soil.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 2 8 20 35 17 10 5 3 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
. Prescribed prazinq which allows for adequate recovery opportunity between grazing events and
proper stocking will shift this ptant community toward the Prairie Sandreed, Little Bluestem,
Sideoats Grama and Shrubs Plant Community(HCPC).
Blue Grama Sod, Threadleaf Sedge Plant Community
This plant community developed with continued grazing without adequate recovery periods between
grazing events. The dominant species are blue grama and threadleaf sedge. These species have
developed into a sodbound condition occurring in localized colonies exhibiting a mosaic appearance.
Tall grasses have been removed with the exception of prairie sandreed, which may exist in remnant
amounts. Sideoats grama and little bluestem may stili be present in small amounts on steeper slopes.
Forbs and shrubs that continue to increase are western ragweed, hairy goldaster, fringed sagebrush
and small soapweed.
Species diversity and production have been significantly decreased due to the major reduction of mid
and tall grass species and key shrubs. Energy flow, water cycle and mineral cycle have been
negatively affected. Litter levels are very low and unevenly distributed. Soil erosion may be a
concern on steeper slopes and exposed areas. Desertification is advanced.
Production ranges from 100 to 500 pounds of air-dry vegetation per acre per year and will average
350 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typicaily be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6712
Growth curve name: Warm season/cool season co-dominant; MLRA-67B; upland coarse textured
soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 1 7 48 27 15 2 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
Technical Guide USDA NRCS
Section IIE 8 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Cenual High Plains, Southern Part R067BY056CO
. Continuous qrazinp without adequate recovery periods between grazing events will shift this plant
community across an ecological threshold toward the Bare Ground, Sand Dropseed, Red
Threeawn, Annuals Plant Community.
. Lonq term prescribed arazinp that allows adequate recovery periods between grazing events and
proper stocking will move this plant community toward the Blue Grama with Decreased Mid/Tall
Grass and Shrubs Plant Community and eventually to the HCPC or associated plant communities
assuming an adequate seed/vegetative source is available. This transition may take upwards of
40 years or more to achieve.
Bare Ground, Sand Dropseed, Red Threeawn, Annuals Plant Community
This plant community formed by continuous grazing without adequate recovery periods during the
growing season. Bare ground has significantly increased. Remnant amounts of blue grama can still
be found in localized areas. The dominant perenniai plants are sand dropseed and red threeawn.
Annuals such as sixweeks fescue, Russian thistle, kochia and cheatgrass have increased or invaded.
Soil erosion hazard has increased due to the increase of bare ground and may be severe on steeper
slopes. All ecological functions are impaired. Desertification is obvious.
Total annual production can vary from 50 to 150 pounds of air-dry vegetation per acre and will
average 100 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6710
Growth curve name: Warm season dominant; MLRA-67B; u land coarse textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 5 20 40 20 10 5 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
. Lona term prescribed qrazinp with adequate recovery opportunities between grazing events and
proper stocking will move this plant community toward the Blue Grama Sod, Threadleaf Sedge
Plant Communityassuming an adequate seed/vegetative source is available. This transition may
take 40 years or more to achieve.
Technical Guide USDA NRCS
Section IIE 9 Rev. 3l04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southem Part R067BY056CO
Ecological Site Interpretations
Animal Community — Wildlife Interpretations
Prairie Sandreed, Little Bluestem, Sideoats Grama and Shrubs Plant Community
The structural diversity in the plant community found on the HCPC is attractive to a number of wildlife
species. Common bird species expected on this community include Cassin's and Brewer's sparrow,
chestnut collared longspur, lark bunting, western meadowlark, and ferruginous and Swainson's
hawks. The combination of mid-tall grasses and shrubs provides habitat for greater and lesser prairie
chicken in the eastern parts of this site. Scaled quail may also use this site.
White-tailed and black-tailed jackrabbit, badger, pronghorn, coyote, swift fox, plains pocket gopher,
long-tailed weasel, and several species of mice are mammals that commonly use this plant
community. Reptiles using this community include western rattlesnake, bulisnake, plains garter snake
(if water is in home range), western hognose snake, racer, western box turtle, and six-lined
racerunner.
Blue Grama with Decreased MidlTall Grasses and Shrubs Plant Community
All HCPC species are expected in this plant community, however, the loss of some of the vegetative
structural diversity in this piant community make it less attractive to the HCPC species.
Low Plant Density, Excessive Litter Plant Community
Although the HCPC species are still expected here, the degraded habitat conditions will limit wildlife
carrying capacity.
Blue Grama Sod, Threadleaf Sedge Plant Community and Bare Ground, Sand Dropseed, Red
Threeawn, Annuals Plant Community
Habitat conditions associated with these communities favor the long-billed curlew, McCown's
longspur, burrowing owl, mountain plover, killdeer, and horned lark. Ferruginous and Swainson's
hawks are frequent users of these communities. The loss of shrubs and taller grasses in these plant
communities results in a shift of bird species away from the HCPC birds. Lark bunting, chestnut-
collared longspur, and western meadowlark use declines and Cassin's sparrow stop using the
communities altogether.
Most mammals will be the same as in the HCPC, howeverjackrabbit, black-tailed prairie dog, desert
cottontail, and thirteen-lined ground squirrel use will increase because of the changing plant
community. Reptiles using these communities are the same as in the HCPC.
Other Potential Species
The plains spadefoot is the only common species of frog or toad inhabiting grasslands in Eastern
Coiorado. This species requires water for breeding. Tiger salamanders may be found on grassland
sites, but require a water body for breeding. Either of these species may be found in any plant
community if seasonal water requirements are met. Mule and white-tailed deer may use this
ecological site, however the shrub cover is too low to provide escape or hiding cover. On ecological
site locations near riparian areas, deer will use the vegetation for feeding. Big brown bats will use any
plant community on this ecological site if a building site is in the area. The gray wolf, black-footed
ferret, and wild bison used this ecological site in historic times. The wolf and ferret are thought to be
extirpated from Eastern Colorado. Bison are currently found only as domestic livestock.
Technical Guide USDA NRCS
Section IIE 10 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southern Part R067BY056CO
Animal Preferences (Quarterly — 1,2,3,4t)
Common Name Cattle Sheep Horses Deer Antelope Bison Elk
Gresses�.and�:Grass-likes. � � � � � � � �
big bluestem U D P D U D U U U D P D U D U U U D U U U D P D U D P D
blue grama D P P D D P P D D P P D D P P D D P P D D P P D D P P D
bottlebrush squirreltail U D U U U D U U U D U U U D U U U D U U U D U U U D U U
Canada wildrye U D U U N U N N U D U U N U N N N U N N U D U U U D U U
green muhly U D D U N U N N U D D U N U N N N U N N U D D U U D D U
hairy grama U D P U D P P D U D P U D P P D D P P D U D P U U D P U
Indian ricegrass D P D D D P D D D P D D D P D D D P D D D P D D D P D D
Indiangrass U D P D U D U U U D P D U D U U U D U U U D P D U D P D
little bluestem U D P U N D D N U D P U N D D N N D D N U D P U U D P U
needleandthread U P D D N D N D U P D D N D N D N D N D U P D D U P D D
plains muhly U U D U U U D U U U D U U U D U U U D U U U D U U U D U
prairie junegrass U D U D N D N U U D U D N D N U N D N U U D U D U D U D
prairie sandreed U D D U U D U U U D D U U D U U U D U U U D D U U D D U
red threeawn N N N N N N N N N N N N N N N N N N N N N N N N N N N N �
ring muhly N N N N U U U U N N N N U U U U U U U U N N N N N N N N
sand bluestem U D P D U D U U U D P D U D U U U D U U U D P D U D P D
sand dropseed U D U N N U D N U D U N N U D N N U D N U D U N U D U N
sideoats grema U D P U U D P U U D P U U D P U U D P U U D P U U D P U
switchgrass U D D U U D U U U D D U U D U U U D U U U D D U U D D U
thickspike wheatgrass U D D U N D N N U D D U N D N N N D N N U D D U U D D U
western wheatgrass U P D D U P D D U P D D U P D D U P D D U P D D U P D D
sun sedge U P D D U P D D U P D D U P D D U P D D U P D D U P D D
threadleaf sedge U D U D U P N D U D U D U P N D U P N D U D U D U D U D
Forbs � � � � � �
American vetch D P P D D P P D D P P D D P P D D P P D D P P D D P P D
annual buckwheat U U U U N U U N U U U U N U U N N U U N U U U U U U U U
Colorado greenthread U U U U N N N N U U U U N N N N N N N N U U U U U U U U
cutleaf evening-primrose U U U U N U U N U U U U N U U N N U U N U U U U U U U U
dotted gayfeather U U D U U D P U U U D U U D P U U D P U U U D U U U D U
hairy goldaster U U D U N N N N U U D U N N N N N N N N U U D U U U D U
heath aster U U D U U U P U U U D U U U P U U U P U U U D U U U D U
ironplant goldenweed U D D U U P P U U D D U U P P U U P P U U D D U U D D U
Louisiana sagewort U U U U U U D U U U U U U U D U U U D U U U U U U U U U
narrowleaf penstemon U D U U U P P U U D U U U P P U U P P U U D U U U D U U
prairie spiderwort U U U U N N N N U U U U N N N N N N N N U U U U U U U U
purple prairie clover U P P D U P P U U P P D U P P U U P P U U P P D U P P D
rush skeletonweed U U U U N N N N U U U U N N N N N N N N U U U U U U U U
sand lily U D U U N U U N U D U U N U U N N U U N U D U U U D U U
scarlet globemallow U D D U U P P U U D D U U P P U U P P U U D D U U D D U
slimflower scurfpea N N N N N U U N N N N N N U U N N U U N N N N N N N N N
stemless hymenoxys U U U U N U U N U U U U N U U N N U U N U U U U U U U U
Texas croton U U U U N N N N U U U U N N N N N N N N U U U U U U U U
western ragweed U D U U U D U U U D U U U D U U U D U U U D U U U D U U
woolly Indianwheat U U U U U U U U U U U U U U U U U U U U U U U U U U U U
Shrubs � � � � �
broom snakeweed N N N N N N N N N N N N N N N N N N N N N N N N N N N N
chokecherry D T T D D T T D D T T D D T T D D T T D D T T D D T T D
currant D U U D D U U D D U U D D U U D D U U D D U U D D U U D
leadplant U P D U U P D U U P D U U P D U U P D U U P D U U P D U
plains pricklypear N N N N N N N N N N N N N N N N N N N N N N N N N N N N
purple pincushion N N N N N N N N N N N N N N N N N N N N N N N N N N N N
skunkbush sumac D U U D D U U D D U U D D U U D D U U D D U U D D U U D
small soapweed D P N D D P N D D P N D D P N D D P N D D P N D D P N D
spreading buckwheat U U U U U U U U U U U U U U U U U U U U U U U U U U U U
western sandcherry D P P D D U U D D P P D D U U D D U U D D P P D D P P D
N = not used; U = undesirable; D = desirable; P = preferred; T =toxic
t Quarters: 1 —Jan., Feb., Mar.; 2—Apr., May, Jun.; 3—Jul., Aug., Sep.; 4—Oct., Nov., Dec.
Technical Guide USDA NRCS
Section IIE I1 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southem Pan R067BY056CO
Animal Community — Grazing Interpretations
The following table lists suggested initial stocking rates for cattle under continuous grazing (year long
grazing or growing season long grazing) under normal growing conditions however, continuous
grazing is not recommended. These are conservative estimates that should be used only as
guidelines in the initial stages of the conservation planning process. Often, the current plant
composition does not entirely match any particular plant community (described in this ecological site
description). Because of this, a field visit is recommended, in all cases, to document plant
composition and production. More precise carrying capacity estimates should eventually be
calculated using the following stocking rate information along with animal preference data, particularly
when grazers other than cattie are involved. Under more intensive grazing management, improved
harvest efficiencies can result in an increased carrying capacity.
Plant Community Production Stocking
Rate
(Ibs./acre) (AUM/acre)
Prairie Sandreed, Little Bluestem, Sideoats Grama, Shrubs (HCPC) 1100 0.35
Blue Grama w/Decreased Mid/Tall Grasses/Shrubs 650 0.21
Blue Grama Sod, Threadleaf Sedge 350 0.11
Low Plant Density, Excessive Litter * *
Sand Dropseed, Red Threeawn, Annuals, Bare Ground * •
Grazing by domestic livestock is one of the major income-producing industries in the area.
Rangelands in this area provide yearlong forage under prescribed grazing for cattle, sheep, horses
and other herbivores. During the dormant period, livestock may need supplementation based on
reliable forage analysis.
' Highly variable; stocking rate needs to be determined on site.
Hydrology Functions
Water is the principal factor limiting forage production on this site. This site is dominated by soils in
hydrologic group A. Infiltration is moderate to high and runoff potential for this site is moderate
depending on ground cover. Areas where ground cover is less than 50% have the greatest potential
to have reduced infiltration and higher runoff(refer to NRCS Section 4, National Engineering
Handbook (NEH-4) for runoff quantities and hydrologic curves).
Recreational Uses
This site provides hunting, hiking, photography, bird watching and other opportunities. The wide
varieties of plants that bloom from spring until fall have an esthetic value that appeals to visitors.
Wood Products
No appreciable wood products are present on the site.
Other Products
None noted.
Technical Guide USDA NRCS
Section IIE 12
Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southern Part R067BY056CO
Supporting Information
Associated Sites
(R067BY024CO)- Sandy (formerly Sandy Plains)
(R067BY015CO)- Sands (formerly Deep Sands)
(R0676Y002CO) — Loamy (formerly Loamy Plains)
(R067BY008CO)— Loamy Slopes
Similar Sites
(R0676Y060CO)— Limestone Breaks
[shallow calcareous soil, lower overall production]
(R067BY063CO)—Gravel Breaks
[gravelly loam soils, less prairie sandreed, lower production]
Inventory Data References
Information presented here has been derived from NRCS clipping data, numerous ocular estimates
and other inventory data. Fieid observations from experienced range trained personnel were used
extensively to develop this ecological site description. Specific data information is contained in
individual landowner/user case files and other files located in county NRCS field offices.
Those involved in developing this site description include: Ben Berlinger, Rangeland Management
Specialist, NRCS; Harvey Sprock, Rangeland Management Specialist, NRCS; James Borchert, Soil
Scientist, NRCS; Terri Skadeland, Biologist, NRCS.
State Correlation
This site is unique to Colorado.
Field Offices
Akron, Brighton, Burlington, Byers, Cheyenne Welis, Eads, Flagler, Fort Collins, Fort Morgan,
Greeley, Holly, Hugo, Kiowa, Lakewood (metro), Lamar, Longmont, Simla, Springfield,
Sterling
Technical Guide USDA NRCS
Secdon IIE 13 Rev. 3/04
Site Type: Rangeland Sandstone Breaks
MLRA: 67B - Central High Plains, Southern Part R067BY056CO
Other References
High Plains Regional Climate Center, University of Nebraska, 830728 Chase Hall, Lincoln, NE
68583-0728. (http://hpccsun.unl.edu)
USDA, NRCS. National Water and Climate Center, 101 SW Main, Suite 1600, PoRland, OR 97204-
3224. (http://wcc.nres.usda.gov)
USDA, NRCS. National Range and Pasture Handbook, September 1997
USDA, NRCS. National Soil Information System, Information Technology Center, 2150 Centre
Avenue, Building A, Fort Collins, CO 80526. (http://nasis.nres.usda.gov)
USDA, NRCS. 2004. The PLANTS Database, Version 3.1 (http://plants.usda.gov). National Plant
Data Center, Baton Rouge, LA 70874-4490 USA.
Andrews, R. and R. Righter. 1992. Colorado Birds. Denver Museum Nat. Hist., Denver, CO. 442 pp.
Armstrong, D.M. 1972. Distribution of mammals in Colorado. Univ. Kansas Museum Nat. Hist.
Monograph #3. 415 pp.
Colorado Breeding Bird Atlas. 1998. Hugh Kingery, Ed., Dist. CO Wildlife Heritage Found., P.O. Box
211512, Denver, CO, 80221. 636 pp.
Fitrgerald, J.P., C.A. Meaney, and D.M. Armstrong. 1994. Mammals of Colorado. Denver Museum
Nat. Hist. Denver, CO. 467 pp.
Hammerson, G.A. 1986. Amphibians and reptiles in Colorado. CO Div. Wild. Publication Code DOW-
M-I-3-86. 131 pp.
Rennicke, J. 1990. Colorado Wildlife. Falcon Press, Helena and Billings, MT and CO Div. Wildlife,
Denver CO. 138 pp.
Site Description Approval
State Range Management Specialist Date
Technical Guide USDA NRCS
Section IIE 14
Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southern Part R067BY024CO
United States Department of Agriculture
Natural Resources Conservation Service
Ecological Site Description
Nn,omi�
Site Type: Rangeland Neb ask
Site Name: Sandy �
Site ID: R067BY024CO
Major Land Resource Area: 676—Central High Plains, Southern Part
Physiographic Features K 5as
This site occurs on level to hilly uplands and plains. c i �ao
Landform: hill, plain Aspect: N/A
Minimum Maximum
Elevation (feet): 3800 5600
Slope (percent): 0 9
Water Table Depth (inches): 60 60
Flooding:
Frequency: None None
Duretion: None None
Ponding:
Depth (inches): None None
Frequency: None None
Duration: None None
Runoff Class: very low medium
Climatic Features
The mean average annual precipitation varies from 12 to 16 inches per year depending on location
and ranges from less than 8 inches to over 20 inches per year. Approximately 75 percent of the
annual precipitation occurs during the growing season from mid-April to late-September. Snowfall can
vary greatly from year to year but averages 35 to 45 inches per year. Winds are estimated to average
about 9 miles per hour annually, ranging from 10 miles per hour during the spring to 9 miles per hour
during late summer. Daytime winds are generally stronger than nighttime and occasional strong
storms may bring periods of high winds with gusts to more than 90 miles per hour.
The average length of the growing season is 142 days, but varies from 129 to 154 days. The average
date of first frost in the fall is September 28 and the last frost in the spring is about May 9. July is the
hottest month and December and January are the coldest. It is not uncommon for the temperature to
exceed 100 degrees F during the summer. Summer humidity is low and evaporation is high. The
winters are characterized with frequent northerly winds, producing severe cold with temperatures
dropping to-35 degrees F or lower.
Technical Guide USDA NRCS
Section IIE Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southern Part R067BY024CO
Growth of native cool season plants begins about March 15 and continues to about June15. Native
warm season plants begin growth about May 15 and continue to about August 15. Regrowth of cool
season plants occurs in September and October of most years, depending on moisture.
Minimum Maximum
Frost-free period (days): 129 154
Freeze-free period (days): 151 178
Mean Annual Precipitation (inches): 12 16
Average Monthly Precipitation (inches) and Temperature (°F):
Preci . Min. Preci . Max Tem . Min. Tem . Max.
Janua 0.32 0.36 12.0 45.1
Februa 0.26 0.38 15.9 50.9
March 0.83 0.87 22.3 58.9
A ril 1.28 1.38 30.1 69.1
Ma 2.32 2.49 39.9 78A
June 1.93 2.57 49.0 88.7
Jul 1.42 2.31 55.0 93.9
Au ust 1.07 2.38 53.5 91.9
Se tember 1.02 1.40 43.8 83.8
October 0.89 1.00 32.5 72.9
November 0.52 0.53 20.9 57.4
December 0.34 0.37 11.9 46.9
Climate Stations Period
Station ID Location or Name From To
CO0945 Bri sdale 1948 2000
CO4076 Holl 1918 2000
CO9147 Windsor 1948 1990
For local climate stations that may be more representative, refer to http://www.wcc.nres.usda.gov.
Influencing Water Features
Wetland Description: Svstem Subsystem Class Sub-class
None None None None None
Stream Type: None
Technical Guide USDA NRCS
Section IIE 2 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southern Part R067BY024CO
Representative Soil Features
The soils of this site are very deep and well drained and are moderately rapid to moderately
permeable. These soils occur on plains, hilis, ridges, alluvial fans, toe slopes, foot slopes and
terraces. The available water capacity is typically low or moderate. The pH ranges from neutral to
moderately alkaline. The soil surface iayer ranges from 3 to 10 inches thick and is typically fine sandy
loam, sandy loam, or loamy sand. The soil moisture regime is typically aridic ustic with some ustic
aridic in the drier areas. The soil temperature regime is mesic. These soils are susceptible to wind
erosion.
The Historic Climax Plant Community (HCPC) should portray siight to no evidence of rills. Water flow
paths, if present, are broken, irregular in appearance or discontinuous with numerous debris dams or
vegetative barriers. Wind scoured areas and pedestaled plants may exist in areas but should be
minor. The soil surface is stable and intact. Sub-surface soil layers are non-restrictive to water
movement and root penetration.
Major soil series correlated to this ecological site include: Ascalon, Bijou, Bresser, Fort Collins (sandy
loam), Gilcrest, Haverson (sandy loam), Haxtun, Julesburg, Manter, Nunn (sandy loam), Olnest,
Otero, Paoli, Platner(sandy loam), Stoneham (sandy loam), Sundance, Terry, Truckton and Vona.
Other soil series that have been correlated to this site include: none
Parent Material Kind: eolian deposits
Parent Material Origin: mixed
Surface Teuture: fine sandy loam, sandy loam and loamy sand
SurFace Texture Modifier: none
Subsurface Texture Group: sandy
Surface Fragments 5 3" (% Cover): 0
Surface Fragments > 3" (°/aCover): 0
Subsurface Fragments 5 3" (%Volume): 0
SubsurFace Fragments > 3" (% Volume): 0
Minimum Maximum
Drainage Class: well somewhat excessive
Permeability Class: moderately moderately rapid
Depth (inches): 80 80
Electrical Conductivity (mmhos/cm)*: 0.00 2.00
Sodium Absorption Ratio*: 0 0
Soil Reaction (1:1 Water)*: 6.6 8.4
Available Water Capacity(inches)*: 3 9
Calcium Carbonate Equivalent (percent)*: 0 5
'These attributes represent 0-40 inches in depth or to the first restrictive layer.
Technical Guide USDA NRCS
Section IIE 3 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southem Part R067BY024CO
Plant Communities
Ecological Dynamics of the Site:
Continuous grazing without adequate recovery opportunities following each grazing event during the
growing season will cause blue grama to increase and eventually form a sodbound condition. Major
warm season grasses such as sand bluestem, yellow Indiangrass and switchgrass will decrease in
frequency and production. Key forbs and shrubs such as American vetch, purple prairie clover and
western sandcherry will decrease also. Red threeawn, annuals and bare ground will increase with
long term continuous grazing, heavy continuous grazing or excessive defoliation. Years of non-use
(rest) or lack of fire will cause litter to accumulate and reduce plant density.
The historic climax plant community (description follows the plant community diagram) has been
determined by study of rangeland relic areas, areas protected from excessive disturbance, seasonal
use pastures, short durationl/time controlled grazing and historical accounts.
The following diagram illustrates the common plant communities that can occur on the site and the
transition pathways (arrows) among communities. Bold lines surrounding each plant community or
communities represent ecological thresholds. The ecological processes are discussed in more detail
in the plant community descriptions following the diagram.
Plant Communities and Transitional Pathways
Red Threeawn;Annuals,� LTCG
� . .-Bare.Ground . ' � � . .�
� �� �� �Sotlbound:Blue Grama w/o�:
.Sand Bluestem; Indian8[ass�.
�� � ' antl�Switchgrass � � .
CG RS LTPG � � � �� � �
LTPG CG
�Seeded Rangeland -
CG RS Jncreased�BlueGrama
Go-backland �� p� CG
� Blue Grama
�.Prairie�Sandreed ��
HCG, Tilledand � � �SandBluestem�
ED abandoned � �(HCPC)� �
Any Community
NU,NF PG
Tilled and
abandoned '
� LowPlantDensity,'
Eroded(Go-back Land) �Excessive Litter
I RS
Eroded Seeded Rangeland
CG-continuous grazing without adequate rewvery opportunity, ED-excessive
defoliation, HCG -heavy continuous grazing,HCPC-Historic Climax Plant
Community, LTCG-long term continuous grazing(>25 yrs), LTPG-long term
prescribed grazing (>40 yrs),PG-prescribed grazing with adequate recovery period,
NF-no fre, NU-non-use, RS-range seeding
Technical Guide USDA NRCS
Section IIE 4 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Cenual High Plains, Southern Part R067BY02ACO
Plant Community Composition and Group Annual Production
Blue Grama, Prairie Sandreed,Sand
Bluestem IHCPC
COMMONIGROUP NAME SCIENTIFIC NAME SYMBOL Group IbsJaere %Com
GRASSES�B-GRASSLIKE& �� � � � - � 70 -.85
blue rama Bouteloua racilis BOGR2 1 330 -495 20 -30
rairie sandreed Calamovilfa lon ifolia CALO 1 330 -495 20 -30
sand bluestem Andro 0 on hallii ANHA � 83 �248 5 -15
needleandthread Hes erosti a comata ss . comata HECOCS 1 83 -165 5 -10
switch rass Panicum vi atum PAVI2 1 83 -165 5 �10
western wheat rass Pasco rum smithii PASM 1 17 �116 1 -7
Indian rass So hastrum nutans SONU2 1 17 �83 1 �5
littlebluestem Schizach riumsco arium SCSC 1 17 �83 1 �5
sideoats rama Boutelouacurti endula BOCU 1 17 �83 1 �5
thicks ike wheat rass EI mus el moides ss .el moides ELELE 1 0 -83 0 �5
rairie'une rass Koeleria macrantha KOMA 1 17 �50 1 -3
sanddro seed S orobolus fandrus SPCR 1 17 �50 1 �3
Indianrice rass Achnatherumh menoides ACHY 1 17 �33 1 �2
red threeawn Aristida ur urea var.lon iseta ARPUL 1 0 -17 0 �1
sand as alum Pas alum setaceum PASE5 1 0 -17 0 �1
sun sed e Carex ino s ss . helio hila CAINH2 1 17 -83 1 �5
other native rasses 2GP 1 0 �83 0 -5
fORBS� ' � � � � � � � 2 165 •248 10 -15
American vetch Vicia americana VIAM 2 17 �33 1 �2
dotted a eather Liatris unctafa LIPU 2 17 �33 1 -2
narrowleaf enstemon Penstemon an ustifolius PEAN4 2 17 �33 1 -2
acific eavine Lath rus ol mor hus LAP02 2 17 �33 1 -2
rairies iderwort Tradescantiaoccidentalis TROC 2 17 �33 1 -2
ur le rairie clover Dalea ur urea var. ur urea DAPUP 2 17 �33 1 -2
scarlet lobemallow S haeralcea coccinea SPCO 2 17 -33 1 �2
u ri ht rairie mneflower Ratibida columnifera RACO3 2 17 -33 1 -2
cutleaf evenin - rimrose Oenothera corono ifolia OECO2 2 0 -�7 0 �1
hai oldaster Heterothep villosa HEVI4 2 0 -17 0 -1
heath aster S m h oirichum ericoides SYERE 2 0 �17 0 -1
Louisiana sa ewort Artemisia ludoviciana ARLU 2 0 -17 0 -1
nuttails evolvulus Evolvulus nuttallianus EVNU 2 0 �17 0 -1
rush skeleton lant L odesmia'uncea LYJU 2 0 -17 0 �1
silverleaf scurf ea Pediomelum ar o h Ilum PEAR6 2 0 �17 0 �t
slimflower scurf ea Psoralidium tenuiflorum PSTE5 2 0 �17 0 �1
stickleaf inentrelia Menfzelia deca etala MEDE2 2 0 �17 0 -1
Texas croton Croton texensis CRTE4 2 0 �17 0 -1
western ra weetl Ambrosia silostach a AMPS 2 0 �17 0 -1
win etl buckwheat Erio onum alatum ERAL4 2 0 -17 0 �1
wooll locoweetl Astra alus mollissimus ASMO7 2 0 �17 0 �1
wormwood Artemisia dracunculus ARDR4 2 0 -17 0 -1
other native forbs 2FP 2 33 -83 2 -5
SHRUBS � � � 3 83 �248 5 �15 �
western sandcher Prunus umila var.besse i PRPUB 3 50 �83 3 �5
fourwin saltbush Atri lex canescens ATCA2 3 17 �50 1 �3
s readin buckwheat Erio onumeffusum EREF 3 17 -33 1 -2
sand sa ebrush Artemisia filifolia ARFI2 3 0 �33 0 �2
broom snakeweed Gutierrezia sarothrae GUSA2 3 0 -17 0 -t
frin ed sa ebrush Artemisia fri ida ARFR4 3 0 -t 7 0 -1
lains rickl ear O untia ol acantha OPPO 3 0 -17 0 -1
ur le incushion Escobaria vivi ara var.vivi ara ESVIV 3 0 �17 0 �1
small soa weed Yucca lauca YUGL 3 0 -17 0 -1
other native shrubs
��Annual ProduetionlbsJaere � LOW RV` HIGH
GR.4SSES 8 GRASS-LIKES 600 - 1300 �1690
FORBS 150- 200 -2 5
SHRUBS 50� 150 -255
TREES
TOTAL 800� 16 -2200
Tnls Gst of o�an6 ena Neir releo�e o�opoNons are oaze0 on naer normel years. Flucwauons'm spttlw composition entl rela4�e o�uction may cnanBe irom year m yeer OeDentlent upon
preclpiteM1on ar ot�er cllmatic hclors. 'RV-Represmtetiw Value.
Technical Guide USDA NRCS
Section IIE 5 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southern Part R067BY024CO
Plant Community Narratives
Following are the narratives for each of the described plant communities. These piant communities
may not represent every possibility, but they probably are the most prevalent and repeatable plant
communities. The plant composition table shown above has been developed from the best available
knowiedge at the time of this revision. As more data is collected, some of these plant communities
may be revised or removed and new ones may be added. None of these plant communities should
necessarily be thought of as "Desired Plant Communities". According to the USDA NRCS National
Range and Pasture Handbook, Desired Plant Communities will be determined by the decision makers
and will meet minimum quality criteria established by the NRCS. The main purpose for including any
description of a plant community here is to capture the current knowledge and experience at the time
of this revision.
Blue Grama, Prairie Sandreed, Sand Bluestem Plant Community
This is the interpretive plant community and is considered to be the Historic Climax Plant Community
(HCPC). This plant community evolved with grazing by large herbivores, is well suited for grazing by
domestic livestock, and can be found on areas that are properly managed with grazing that allows
adequate recovery periods following each grazing occurrence during the growing season.
The potential vegetation is about 70-85% grasses and grass-like plants, 10-15% forbs and 5-15%
woody plants. The dominant tall warm season grasses are prairie sandreed, sand bluestem and
switchgrass. Blue grama dominates the understory. Important cool season grasses and grass-likes
are needleandthread and sun sedge. Key forbs and shrubs are American vetch, pacific peavine,
purple prairie clover, western sandcherry and leadplant.
This plant community is well adapted to the Northern Great Plains climatic conditions and is relatively
resistant to many disturbances except prolonged continuous grazing, sodbusting, urban and other
development. The diversity in plant species allows for high drought tolerance. Plant litter is properly
distributed with very little movement off-site and natural plant mortality is very low. This is a
sustainable plant community in terms of soil stability, watershed function and biologic integrity.
Production in this community can vary from 800 to 2200 pounds of air-dry vegetation per acre per
year depending on weather conditions and averages 1650 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6709
Growth curve name: Warm season dominant, cool season sub-dominant; MLRA-676; upland coarse
textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 2 7 25 35 15 10 5 1 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
. Continuous prazinq without adequate recovery periods between grazing events will move this
plant community toward the Increased Blue grama Plant Community.
. Non-use (rest) or lack of fire will move this plant community toward the Low Plant Density,
Excessive Litter Plant Community.
• Prescribed prazina that allows adequate recovery opportunity following each grazing event with
proper stocking will maintain the Blue Grama, Prairie Sandreed, Sand Bluestem Plant Community
(HCPC).
Technical Guide USDA NRCS
Section IIE 6 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southern Part R067BY024CO
Increased Blue Grama Plant Community
This plant community evolves with continuous grazing. When compared to the Historic Climax Plant
Community; sand bluestem, yeliow Indiangrass, prairie sandreed, switchgrass, leadplant and western
sandcherry have decreased in frequency and production. Blue grama is the dominant grass species.
Sand dropseed, red threeawn, hairy goldaster, croton, slimflower scurtpea, western ragweed,
stickleaf, heath aster, iupine, loco, milkvetch and cactus have increased. Soils that have a sandy
loam or coarser subsoil will show an increase in sand sagebrush.
Continuous spring grazing with summer deferment wiil reduce the cool season component
(needleandthread, western wheatgrass, sun sedge) of this plant community and increase the warm
season component. Continuous summer grazing with spring deferment will reduce the warm season
component (sand bluestem, yellow Indiangrass, prairie sandreed, switchgrass) of this plant
community and increase the cool season component.
The risk of losing key tall warm season grasses, important forbs and shrubs is a major concern.
Prescribed grazing with adequate recovery periods between grazing events will enable the land user
to maintain the vegetation or move it toward the HCPC. Continuous grazing will take this plant
community past an ecological/economic threshold resulting in costly revegetation practices or require
many years of prescribed grazing to reverse the process.
Blue grama is increasing at the expense of the tall grasses and deep-rooted shrubs. Water cycle,
nutrient cycle and energy flow are becoming impaired do to a shift in root structure and species
composition. Less litter is being produced. This is an early stage of desertification.
Production in this community can vary from 400 to 1200 pounds of air-dry vegetation per acre per
year depending on weather conditions and averages 900 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6710
Growth curve name: Warm season dominant; MLRA-67B; u land coarse textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 5 20 40 20 10 5 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Continuous qrazina without adequate recovery periods between grazing events will move this
plant community across an ecological threshold toward the Sodbound Blue Grama without Sand
Bluestem, Yellow Indiangrass and Switchgrass Plant Community.
• Prescribed qrazinp that allows adequate recovery periods following grazing occurrences and
proper stocking can bring this plant community back to the Blue Grama, Prairie Sandreed, Sand
Bluestem Plant Community (HCPC).
Low Plant Density, Excessive Litter Plant Community
This plant community occurs when grazing is removed for long periods of time in the absence of fire.
Most of the species occurring in the HCPC are present in this plant community but are reduced in
abundance and production. Much of the nutrients are tied up in excessive litter. The semiarid
environment and the absence of animal traffic to break down litter slow nutrient recycling.
Aboveground litter also limits sunlight from reaching plant crowns. Many plants, especially
bunchgrasses die off. Thick litter and absence of grazing or fire reduce seed germination and
establishment.
Technical Guide USDA NRCS
Section IIE 7 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southem Part R067BY024CO
This plant community is at risk of losing many key species and if left ungrazed or ungrazed without fire
can go to a vegetative state resembling the Red Threeawn, Annuals, Bare Ground Plant Community.
This plant community will change rapidly if plant manipulation is allowed to occur (grazing by domestic
livestock or possibly fire).
In advanced stages, plant mortality can increase and erosion potential increases as bare areas
increase.
Production can vary from 300 to 1500 pounds of air-dry vegetation per acre per year depending on
weather conditions and the plants that are present.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-676. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6711
Growth curve name: Warm season dominant, cool season sub-dominant, excess litter; MLRA-67B;
u land coarse texture soil.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 2 8 20 35 17 10 5 3 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Prescribed prazinq that ailows for adequate recovery periods following each grazing event and
proper stocking will shift this plant community back to the Blue Grama, Prairie Sandreed, Sand
Bluestem Plant Community(HCPC).
Sodbound Blue Grama without Sand Bluestem, Indiangrass and Switchgrass Plant
Community
This plant community evoives with longer term continuous grazing caused by lack of adequate
recovery periods between grazing events. Sodbound blue grama dominates this plant community.
Large amounts of sand dropseed and red threeawn are common. Louisiana sage, lupine, stickleaf,
croton, hairy goldaster, loco, wormwood, fringed sage and soapweed have increased. Sand
sagebrush may increase on sandy loam or coarser subsoils. Sand bluestem, yellow Indiangrass,
switchgrass, leadplant, western sandcherry and fourwing saltbush have been removed. Prairie
sandreed and needleandthread may persist in remnant amounts protected by remaining shrubs.
Western wheatgrass may be found in small depressions. This plant community is present on most of
the Sandy ecological site in the Central High Plains today.
A significant amount of production and diversity has been lost when compared to the HCPC. The soil
is stable at this stage however, the nutrient cycle, water cycle, community dynamics and energy flow
are all impaired do to the substantial increase of blue grama and loss of tall warm season grasses,
nitrogen fixing legumes and shrubs. Desertification is advanced.
Production varies from 200 to 900 pounds of air-dry vegetation per acre per year depending on
weather and averages 700 pounds.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Technical Guide USDA NRCS
Section IIE 8 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Cenual High Plains, Southern Part R067BY024CO
Growth curve number: CO6710
Growth curve name: Warm season dominant; MLRA-676; u land coarse textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 5 20 40 20 10 5 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Lona term continuous arazinq without adequate recovery periods between grazing events will
move this plant community to the Threeawn, Annuals and Bare Ground Plant Community. This
transition may take greater than 25 years to accompfish.
• Lonq term qrescribed qrazinq with adequate recovery periods between grazing events and proper
stocking will be needed to bring this plant community back to the Increased Blue Grama Plant
Community and eventually to the HCPC assuming an adequate seed/vegetative source is
available. This process may take greater than 40 years to accomplish.
Red Threeawn, Annuals, Bare Ground Plant Community
This plant community can develop by long term continuous grazing, heavy continuous grazing and/or
occupation by prairie dogs. Red threeawn is the dominant species. Sand dropseed may also be
present in varying amounts. A number of annual plants such as Russian thistle, kochia and
cheatgrass will increase or invade. Field bindweed is often present on prairie dog towns.
Litter levels are extremely low. The nutrient cycle, water cycle, and energy flow are greatly reduced.
Erosion is occurring. Pedestalling is evident. Organic matter/carbon reserves are greatly reduced.
Desertification is obvious.
Production can vary from 50 to 400 pounds of air-dry vegetation per acre per year depending on
weather conditions and the plants that are present.
The following is an estimated growth curve of this plant community expected during a normal year.
Vegetative growth begins earlier in the southern reaches (Baca, Bent, Kiowa, Las Animas and
Prowers counties) of MLRA-67B. Vegetative growth will typically be suppressed during the months of
June through August in these counties due to higher evapotranspiration rates.
Growth curve number: CO6710
Growth curve name: Warm season dominant; MLRA-67B; u land coarse textured soils.
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
0 0 0 5 20 40 20 10 5 0 0 0
(monthly percentages of total annual growth)
Transitions or pathways leading to other plant communities are as follows:
• Lona term orescribed qrazinp that allows for adequate recovery periods between each grazing
event and proper stocking wiil be needed to bring this state back to the Blue Grama, Prairie
Sandreed, Sand Bluestem (HCPC) or associated successional plant community stages assuming
an adequate seed/vegetative source is available. Expect this transition to take greater than 40
years to accomplish.
• Ranqe seedinq can be used to create Seeded Rangeland. Revegetation practices would be very
costly.
Technical Guide USDA NRCS
Section IIE 9
Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southem Part R067BY024CO
Go-back Land
Go-back land is created when the soil is tilled or farmed (sodbusted) and abandoned. A�I of the native
plants are destroyed, soil organic mater is reduced, soil structure is changed and a piowpan or
compacted layer is formed. Residual synthetic chemicals often remain from past farming operations
and erosion processes may be active.
Go-back land evolves through several plant communities beginning with an early annual plant
community, which initiates the revegetation process. Plants such as Russian thistle, kochia and other
annuals begin to establish. These plants give some protection from erosion and start to build minor
levels of soii organic matter. This early annual plant community lasts for two to several years. Red
threeawn, sand dropseed and several other early perennials can dominate the plant community for
five to eight years or more. Eventually other native species become reestablished.
Transitions or pathways leading to other plant communities are as follows:
• Ranpe seedinq followed with prescribed grazing can be used to convert Go-back Land to Seeded
Rangeland.
Go-back Land (eroded)
Eroded go-back land is created where tillage or farming and severe erosion has occurred. If the
parent material that the original soil developed from is lost, then another ecosite will evolve. If the
same parent material is present, then re-seeding or the slow process of developing soil and
vegetation will start by similar processes as shown in the non-eroded Gaback Land above. This is a
very slow process (100 years or more).
Seeded Rangeland
This plant community can vary considerable depending on how eroded the soil was, the species
seeded, the stand that was established, how long ago the stand was established and the
management of the stand since establishment. Prescribed grazing that allows adequate recovery
periods following each grazing event will help maintain this plant community and eventually move it
towards the HCPC.
Transitions or pathways leading to other plant communities are as follows:
. Continuous qrazinq without adequate recovery periods following each grazing event wiil move this
plant community to the Threeawn, Annuals, Bare Ground Plant Community or to a plant
community resembling Go-back Land.
Technical Guide USDA NRCS
Section IIE 10 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southem Part R067BY024CO
Ecological Site Interpretations
Animal Community — Wildlife Interpretations
Blue Grema, Prairie Sandreed, Sand Bluestem Plant Community (HCPC)
The structural diversity in the plant community found on the HCPC is attractive to a number of wildlife
species. Common bird species expected on the HCPC include Cassin's and Brewer's sparrow,
chestnut collared longspur, lark bunting, western meadowlark, and ferruginous and Swainson's
hawks. The combination of mid-tall grasses and shrubs provides habitat for greater and lesser prairie
chicken in the eastern parts of this site. Scaled quail may also use this community.
White-tailed and black-tailed jackrabbit, badger, pronghorn, coyote, swift fox, plains pocket gopher,
long-tailed weasel, and several species of mice are mammals that commonly use this plant
community. Reptiles using this community include western rattlesnake, bullsnake, plains garter snake
western hognose snake, racer, western box turtle, and six-lined racerunner.
Increased Blue Grama Plant Community
All HCPC species are expected in this plant community, however, the loss of some of the vegetative
structural diversity in this plant community make it less attractive to many HCPC species.
Low Plant Density, Excessive Litter and Sodbound Blue Grama Plant Communities
As these communities develop into an open landscape the wildlife species will shift from the HCPC
species toward the typical shortgrass prairie species such as horned lark, killdeer, long-billed curlew,
McCown's longspur, and ferruginous hawk. In addition, mountain plover, black-tailed prairie dog, and
burrowing owl might use these communities where slopes are less than 5%.
Red Threeawn and Go-back Land Plant Communities
Mountain plover, black-tailed prairie dog, and burrowing owl are expected on these communities
where slopes are less than 5%.
Seeded Rangeland
The wildlife species expected on seeded rangeland would be those listed for the plant community the
seeding most resembles.
Other Potential Species
The plains spadefoot is the only common species of frog or toad inhabiting grasslands in Eastern
Colorado. This species requires water for breeding. Tiger salamanders may be found on grassland
sites, but require a water body for breeding. Either of these species may be found in any plant
community if seasonal water requirements are met. Mule and white-tailed deer may use this
ecological site for feeding, however the shrub cover is too low to provide escape or hiding cover. On
ecological site locations near riparian areas, deer will use the vegetation for feeding. Big brown bats
will use any plant community on this ecological site if a building site is in the area. The gray wolf,
black-footed ferret, and wild bison used this ecological site in historic times. The wolf and ferret are
thought to be extirpated from Eastern Colorado. Bison are currently found only as domestic livestock.
Technical Guide USDA NRCS
Section IIE 11 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southern Part R067BY024CO
Animal Preferences (Quarterly- 1,2,3,4t)
Common Name Cattle Sheep Horses Deer Antelope Bison Elk
Grasses and Gressdikes
blue grama D P P D D P P D D P P D D P P D D P P D D P P D D P P D
Indian ricegress D P D D D P D D D P D D D P D D D P D D D P D D D P D D
Indiangrass U D P D U D U U U D P D U D U U U D U U U D P D U D P D
little bluestem U D P U N D D N U D P U N D D N N D D N U D P U U D P U
needleandthread U P D D N D N D U P D D N D N D N D N D U P D D U P D D
prairie junegrass U D U D N D N U U D U D N D N U N D N U U D U D U D U D
prairie sandreed U D D U U D U U U D D U U D U U U D U U U D D U U D D U
red threeawn N N N N N N N N N N N N N N N N N N N N N N N N N N N N
sand bluestem U D P D U D U U U D P D U D U U U D U U U D P D U D P D
sand dropseed U D U N N U D N U D U N N U D N N U D N U D U N U D U N
sand paspalum N U U N N U N N N U U N N U N N N U N N N U U N N U U N
sideoats grama U D P U U D P U U D P U U D P U U D P U U D P U U D P U
switchgrass U D D U U D U U U D D U U D U U U D U U U D D U U D D U
thickspike wheatgrass U D D U N D N N U D D U N D N N N D N N U D D U U D D U
western wheatgrass U P D D U P D D U P D D U P D D U P D D U P D D U P D D
sun sedge U P D D U P D D U P D D U P D D U P D D U P D D U P D D
Forbs
American vetch D P P D D P P D D P P D D P P D D P P D D P P D D P P D
cutleaf evening-primrose U U U U N U U N U U U U N U U N N U U N U U U U U U U U
dotted gayfeather U U D U U D P U U U D U U D P U U D P U U U D U U U D U
hairy goldaster U U D U N N N N U U D U N N N N N N N N U U D U U U D U
heath aster U U D U U U P U U U D U U U P U U U P U U U D U U U D U
Louisiana sagewort U U U U U U D U U U U U U U D U U U D U U U U U U U U U
narrowleaf penstemon U D U U U P P U U D U U U P P U U P P U U D U U U D U U
nuttails evolvulus U U D U U D D U U U D U U D D U U D D U U U D U U U D U
pacific peavine U D U U U P P U U D U U U P P U U P P U U D U U U D U U
prairie spiderwort U U U U N N N N U U U U N N N N N N N N U U U U U U U U
purple prairie clover U P P D U P P U U P P D U P P U U P P U U P P D U P P D
rush skeletonplant U U U U N N N N U U U U N N N N N N N N U U U U U U U U
scarlet globemallow U D D U U P P U U D D U U P P U U P P U U D D U U D D U
silverleaf scurfpea U U U U N U U N U U U U N U U N N U U N U U U U U U U U
slimflower scurfpea N N N N N U U N N N N N N U U N N U U N N N N N N N N N
stickleaf inentzelia U U U U N N N N U U U U N N N N N N N N U U U U U U U U
Texas croton U U U U N N N N U U U U N N N N N N N N U U U U U U U U
upright prairie coneflower U U D U U P P U U U D U U P P U U P P U U U D U U U D U
western ragweed U D U U U D U U U D U U U D U U U D U U U D U U U D U U
winged buckwheat U U D U U U U U U U D U U U U U U U U U U U D U U U D U
woolly locoweed T T T T T T T T T T T T T T T T T T T T T T T T T T T T
wormwood U U U U U U U U U U U U U U U U U U U U U U U U U U U U
Shrubs
broom snakeweed N N N N N N N N N N N N N N N N N N N N N N N N N N N N
fourwing saltbush P D D P P D D P P D D P P D D P P D D P P D D P P D D P
fringed sagebrush U N N U U D D U U N N U U D D U U D D U U N N U U N N U
plains pricklypear N N N N N N N N N N N N N N N N N N N N N N N N N N N N
purple pincushion N N N N N N N N N N N N N N N N N N N N N N N N N N N N
sand sagebrush U N N U U N N U U N N U U N N U U N N U U N N U U N N U
small soapweed D P N D D P N D D P N D D P N D D P N D D P N D D P N D
spreading buckwheat U U U U U U U U U U U U U U U U U U U U U U U U U U U U
western sandcherry D P P D D U U D D P P D D U U D D U U D D P P D D P P D
N = not used; U = undesirable; D = desirable; P = preferred; T = toxic
t Quarters: 1 —Jan., Feb., Mar.; 2 —Apr., May, Jun.; 3—Jul., Aug., Sep.; 4— Oct., Nov., Dec.
Technical Guide USDA NRCS
Section IIE 12 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southern Part R067BY024CO
Animal Community — Grazing Interpretations
The foliowing table lists suggested initial stocking rates for cattle under continuous grazing (year long
grazing or growing season long grazing) with normal growing conditions however, continuous grazing
is not recommended. These are conservative estimates that should be used oniy as guidelines in the
initial stages of the conservation planning process. Often, the current plant composition does not
entirely match any particular plant community (as described in this ecological site description).
Because of this, a field visit is recommended, in all cases, to document plant composition and
production. More precise carrying capacity estimates should eventually be calculated using this
information along with animai preference data, particularly when grazers other than cattie are
involved. Under more intensive grazing management, improved harvest efficiencies can result in an
increased carrying capacity.
Plant Community Production Stocking
Rate
(Ibs./acre) (AUM/acre)
Biue Grama, Prairie Sandreed, Sand Bluestem (HCPC) 1650 0.52
Increased Blue Grama 900 0.29
Biue Grama Sod w/o Sand Bluestem, Indiangrass, Switchgrass 700 0.22
Low Plant Density, Excessive Litter * *
Red Threeawn, Annuals, Bare Ground * *
Grazing by domestic livestock is one of the major income-producing industries in the area.
Rangeland in this area may provide yearlong forage under prescribed grazing for cattle, sheep,
horses and other herbivores. During the dormant period, livestock may need supplementation based
on reliable analysis.
' Highly variable; stocking rate needs to be determined on site.
Hydrology Functions
Water is the principal factor limiting forage production on this site. This site is dominated by soils in
hydrologic group A. Infiltration and runoff potential for this site varies from high to moderate
depending on soil hydrologic group and ground cover. Areas where ground cover is less than 50%
have the greatest potential to have reduced infiltration and higher runoff(refer to NRCS Section 4,
National Engineering Handbook (NEH-4)for runoff quantities and hydrologic curves).
Recreational Uses
This site provides hunting, hiking, photography, bird watching and other opportunities. The wide
varieties of plants that bioom from spring until fall have an esthetic value that appeals to visitors.
Wood Products
No appreciable wood products are present on the site.
Other Products
None noted.
Technical Guide USDA NRCS
Section IIE 13
Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southern Part R067BY024CO
Supporting Information
Associated Sites
(0&7BY015CO)- Sands (formerly Deep Sands)
(067BY022CO)-Choppy Sands
(0676Y002CO)— Loamy (formerly Loamy Plains)
Similar Sites
(067BY015CO)- Sands (formerly Deep Sands)
[higher production; more sand bluestem and sand sagebrush]
(067BY022CO)—Choppy Sands
[steep slopes, more western sandcherry]
Inventory Data References
Information presented here has been derived from NRCS clipping data, numerous ocular estimates
and other inventory data. Field observations from experienced range trained personnel were used
extensively to develop this ecological site description. Specific data information is contained in
individual landowner/user case files and other files located in county NRCS fieid offices.
Those involved in developing this site include: Harvey Sprock, Rangeland Management Specialist,
NRCS; Ben Berlinger, Rangeland Management Specialist, NRCS; Chuck Ring, Rangeland
Management Specialist, NRCS; Dave Cook, Rangeland Management Specialist, NRCS; Scott
Woodali, Rangeland Management Specialist, NRCS; James Borchert, Soil Scientist, NRCS; Dave
Sharman, Resource Conservationist, NRCS; Terri Skadeland, Biologist, NRCS.
State Correlation
This site is specific to Colorado (formerly Sandy Plains).
Field Offices
Akron, Brighton, Burlington, Byers, Cheyenne Wells, Eads, Flagler, Fort Collins, Fort Morgan,
Greeley, Holly, Hugo, Kiowa, Lakewood Metro, Lamar, Longmont, Simla, Springfield, Sterling
Technical Guide USDA NRCS
Section IIE 14 Rev. 3/04
Site Type: Rangeland Sandy
MLRA: 67B - Central High Plains, Southern Part R067BY024CO
Other References
High Plains Regional Climate Center, University of Nebraska, 830728 Chase Hall, Lincoln, NE
68583-0728. (http://hpccsun.unl.edu)
USDA, NRCS. National Water and Climate Center, 101 SW Main, Suite 1600, Portland, OR 97204-
3224. (http://wcc.nres.usda.gov)
USDA, NRCS. National Range and Pasture Handbook, September 1997
USDA, NRCS. National Soil Information System, Information Technology Center, 2150 Centre
Avenue, Building A, Fort Collins, CO 80526. (http://nasis.nres.usda.gov)
USDA, NRCS. 2004. The PLANTS Database, Version 3.1 (http://plants.usda.gov). National Plant
Data Center, Baton Rouge, LA 70874-4490 USA.
Andrews, R. and R. Righter. 1992. Colorado Birds. Denver Museum Nat. Hist., Denver, CO. 442 pp.
Armstrong, D.M. 1972. Distribution of mammals in Colorado. Univ. Kansas Museum Nat. Hist.
Monograph #3. 415 pp.
Colorado Breeding Bird Atias. 1998. Hugh Kingery, Ed., Dist. CO Wildlife Heritage Found., P.O. Box
211512, Denver, CO, 80221. 636 pp.
Fitzgerald, J.P., C.A. Meaney, and D.M. Armstrong. 1994. Mammals of Colorado. Denver Museum
Nat. Hist. Denver, CO. 467 pp.
Hammerson, G.A. 1986. Amphibians and reptites in Colorado. CO Div. Wild. Publication Code DOW-
M-I-3-86. 131 pp.
Rennicke, J. 1990. Colorado Wildlife. Falcon Press, Helena and Billings, MT and CO Div. Wildlife,
Denver CO. 138 pp.
Site Description Approval
State Range Management Specialist Date
Technical Guide USDA NRCS
Section IIE 15
Rev. 3/04
5T?�TE OF COLORADO
DIVISION OF MINERALS AND GEOLOCY
Departrnent of Natural Resources ,
�3�s shem,an sc,eoom z�s C O L O RA D O
� DenVGf��A�OfidO 80203 � D I V I S t O N O F
Phone:(303)6663567 CONSTRUCiTON MATE1tIAIS M I N E RA L S
pnx:(3os1 e3��io5 ggGiTI.AR(112)OPERATION G E O LO G Y
RECLAMAITONPERhIITAPpLICATIONFORM ^E SAfETY'SQEN'C(NG
- Bill Owens
Govemor
CHECK ONE: There�a File Nomber Already Asafgned w thia Operatioo auu�n c�
Permit�l�.-. --- (Pleese reference the file n�ber currently essigned to this operation) e,«�ntK o�reao�
_New Application(Rule 1.4.5) _Amendment lication ule 1.10 RonaW W.Gtbny
� � � Divltion Director
_Conversion App6carian(Rdle 1.11) Nm�ni Reoo�r,�n«
Permit# �vi -19 - 82 - O15 (pro��for Amendments end Convenioos of existing pumits)
T'he epplicati�for a Camstr��cdw Mnterials Regular 112 Operation Rxleme6�Pecmit contains thrce majorpazts:(1)the epplication frnm;
(2)Exhibits A-S,Addendum I,my sedious ofExhibit 6.5((3eotecbnical Stability Exlubit;and(3)the appiication fee. Whenyou sabmityaa
applicetion,be siue to include o�(1)comnlete sivaed end nofsri7ed Ol�irnv�i ���1�copy ofthe oa�pleted epplicaliaafam.two(2)
copies ofE�dubits A-S,Addendum 1,appropriate sxtions of6.5(Geotochnicel StabilityExhibit,end a chxk for t6e application fx desc�ibed
imder Sectia�n(4)bclow. Exhibits�d�iOT be bound or in e 3-ring binder;meps should be folded W 8 I/2"X 1]"�81lZ"X 14"�ze. To
��Pl'�&Pleax provide the infotmetion in the foimet and ardc descn'bed in dus foim.
GENERAL OPERATION INFORMATION
Type or prtnt ckarly,in the epace provided;AI,I,IoformaHon roqueated beb�r.
1. 1ppllcanUocerator or comosnv name(name to 6e d on oermitl: Siegrist Cons truction Co.
I.1 Typeoforganization(corporation,pmfiersyip,etc.): Corooration
2. OperttionnamefnitLmineoraftenamel: Siegrist Construction Company
3. Permitted acrea¢e fne�►or eL.Hs2 skeY. 16 9.6 ����
3.1 Chmge in aereege(+) +38.9
ecre.c
3.2 Total a�xtage in Pamit area �n R S �
4. �:
4.1 New Applicalion 52344.00 appGcation fee
a.z blew�Applieation sz.906.0o qnmiy epplication
4.4 AmrndmmtFee SI_938.00 amendmenifee
4.5 Convu9ion to 112 opaation(set by statute) S2_344.00 conveision fce
5. �'imary commoditie(sl to be mined: 8ravel
5.1 Tncidentel commoditie(s)to be mined: 1. - Ibs/Tons/vr 2. / lbs/To�./�r
3. / Ibslfons/vr 4. / Ibs/foas/vr 5. / Ibs/fons/vr
5.2 Anticipated end use of primery commoditie(s)to bo mined: n/a
53 Anticipated end use of incidentaf commoditie(s)to be mined: n/a
���� � OHice of Colorado
Mined Land Reclamatio� Active and Inactive Mines � c:ev,lnei�al t��N..�
1��rracon
June 2, 2006 Consulting Engineers 8 Selentists
10625 West 1-70 Frontage Road North, Suite 3
Wheat Ridge,Colorado 80033
Carma Phone 303.423.3300
Fax 303.423.3353
Highland Place 11 www.tertacon.com
9110 East Nichols Avenue, Suite 180
Greenwood Viliage, Colorado 80112
Attn: Mr. Tyler Packard
Re: Addendum to Supplemental Geotechnical Engineering Report
Proposed St. Vrain/Bayshore Development
Carma Weld County Site
Weld County Road 28 and Weld County Road 9-1/2
Terracon Project No. 25045300—Addendum No. 1
At your request, Terracon is providing this addendum to the Supplemental Geotechnical
Engineering Report dated November 9, 2005. The attached Figure 3 (revised) dated June
2, 2006 should replace Figure 3 dated November 9, 2005 which was included in the original
report. The revisions within the figure reflect changes to the proposed approximate slurry
wall alignment and also reflect the most current proposed grading configuration for the lake
improvements and island features. We hope this clarifies information in the previous report,
however, if there are any questions please do not hesitate to contact us.
Sincerely, 0 REC
TERRACON ���,•••• /Sr
o�'�•'�,6''1�'p' `��'a^
.
c,�!rp`� �;O
.
;�. 31468 $; . .
:,�6,/ 1�4�
4� �/Vli�i� ``�J'S/pNAI���
Raymond L. Denton II, E.I. Michael E. Anderson, P. .
Staff Engineer Geotechnical Department Manager
Copies to: Addressee (3)
Meurer and Associates (1) via email
Attn: Ms. Jodi Villa
Delivering Success for Clients and Employees Since 1965
More Than 80 OHices Nationwide
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Checked By. RLD
Approved By: MEA
CONSTRUCTION MATERIALS
REGULAR (112) OPERATION
RECLAMATION PERMIT AMENDMENT
PERMIT # M-82-015
SIEGRIST PITS - DEL CAMINO PROPERTIES
EXHIBIT M - OTHER PERMITS AND LICENSES
Other permits and licenses associated with this project include:
Permit A ency Comments
Nationwide Permit Army Corps of Engineers Wetlands Disturbance, If
Re uired, Carma to Obtain
Grading Permit Weld County Grading/Erosion Control, Carma to
Obtain
CLOMR Federal Emer ency Mana ement A ency 100-Year Floodplain Revision
Stormwater Colorado Department of Public Health Carma to Obtain
Dischar e Permit and the Environment
Air Pollutant Colorado Department of Public Health Carma to Obtain
Emission Notice and the Environment
Groundwater State of Colorado Carma to Obtain
Dischar e Permit
Water Discharge State of Colorado Slurry Contractor to Obtain to
Permit empt onds -
Slurry Wall Permit State of Colorado Carma to Obtain
June 7, 2006
Ms. Deb G6nima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
1313 Sherman Street, Room 215
Denver, CO 80203
Re: DMG Permit Amendment; M-1982-015
Siegrist Construction Company
Dear Ms. G6nima,
Pacific Energy Partners, L.P. is aware of Carma (Colorado), Inc.'s plans to grade and construct
a slurry wall around the existing gravel pits north of the St. Vrain River and east of Interstate 25.
We understand that in order to do this work a Division of Minerals and Geology permit for
reclamation is required.
It is our understanding that the pond reclamation will have no negative effect on our utility or any
significant, valuable, and permanent manmade structure located within two hundred feet of the
affected land. It is also our understanding that the Operator of the site, Siegrist Construction
Company, is ultimately liable for operations pertaining to the reclamation of the ponds, Carma
(Colorado), Inc. agrees to compensate any damage to any utility's structure, shouid such
damage occur.
Sincerely,
Name Date
Pacific Energy Partners, L.P.
State of 1
)ss.
County of 1
The foregoing instrument was acknowledged before me this day of , 2006,
by as of
Notary Public
My Commission Expires:
Ms. Deb Gdnima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
June 7, 2006
Page 2
Michael Siegrist Date
Operator
State of �
)ss.
County of )
The foregoing instrument was acknowledged before me this day of , 2006,
by as of
Notary Public
My Commission Expires:
� G�7��L
Tyle Packard Date
Carma (Colorado), Inc
State of �/� d„ 1
)ss.
County of ,����.rrsa�I )
The foregoing instrument was acknowledged before me this 7'� day of ,TuP_ , 2006,
by,��-.v �n,/iB��✓ as .7i�r/��.r�</y/a.�ay«of/��.��� /l'o%.,���J T,�.
�� �. � �
LIS�ONNELY Nota�Public �M ,
NOTARY PUBLIC My Commission Expires: /�/9/dooG
STATE OF COLORADO
My Commission Expires Oc!.29,2G06
June 7, 2006
Ms. Deb G6nima
Environmentai Protection Specialist
Division of Minerals& Geology
Department of Natural Resources
1313 Sherman Street, Room 215
Denver, CO 80203
Re: DMG Permit Amendment; M-1982-015
Siegrist Construction Company
Dear Ms. Gdnima,
Central Weld County Water District is aware of Carma (Colorado), Inc.'s plans to grade and
construct a slurry wall around the existing gravel pits north of the St. Vrain River and east of
Interstate 25. We understand that in order to do this work a Division of Minerals and Geology
permit for reclamation is required.
It is our understanding that the pond reclamation will have no negative effect on our utility or any
significant, valuable, and permanent manmade structure located within two hundred feet of the
affected land. It is also our understanding that the Operator of the site, Siegrist Construction
Company, is uttimately liable for operations pertaining to the reclamation of the ponds, Carma
(Colorado), Inc. agrees to compensate any damage to any utility's structure, should such
damage occur.
Sincerely,
Name Date
Central Weld County Water District
State of 1
)ss.
County of - 1
The foregoing instrument was acknowledged before me this day of , 2006,
by as of
Notary Public
My Commission Expires:
Ms. Deb Gbnima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
June 7, 2006
Page 2
Michael Siegrist Date
Operator
State of >
)ss.
County of 1
The foregoing instrument was acknowledged before me this day of , 2006,
by as of
Notary Public
My Commission Expires:
Tyl�� �( �/� /.�
kard �a et T—
Carma (Colorado), inc
State of��/o., ,� 1
)ss.
County of�T6,�'P��.,,✓ )
The foregoing instrument was acknowledged before me this 7� day of ., e. , 2006,
by=�/.o. �r�ao�/ as��..n„�.s,���of �o.,�9 ��e/a.�ea�n T.di+- .
LISA A. CONNELY � � / '"'""'��
NOTARY PUBLIC Not Public
STATE OF COLORADO My Commission Expires: /��d9/aooJ
NV GGmrSi;kln r%;tif.=.g Qr.t i" :^0^)
June 7, 2006
Ms. Deb Gonima
Environmental Protection Specialist
Division of Minerals &Geology
Department of Natural Resources
1313 Sherman Street, Room 215
Denver, CO 80203
Re: DMG Permit Amendment; M-1982-015
Siegrist Construction Company
Dear Ms. Gbnima,
Kerr McGee Oil & Gas Onshore LP is aware of Carma (Colorado), Inc.'s plans to grade and
construct a slurry wall around the existing gravel pits north of the St. Vrain River and east of
Interstate 25. We understand that in order to do this work a Division of Minerels and Geology
permit for reclamation is required.
It is our understanding that the pond reclamation will have no negative effect on our utility or any
significant, valuable, and permanent manmade structure located within two hundred feet of the
affected land. It is also our understanding that the Operator of the site, Siegrist Construction
Company, is ultimately liable for operations pertaining to the reclamation of the ponds, Carma
(Colorado), Inc. agrees to compensate any damage to any utility's structure, should such
damage occuc
Sincerely,
Name Date
Kerr McGee Oil &Gas Onshore LP
State of �
)ss.
County of 1
The foregoing instrument was acknowledged before me this day of , 2006,
by as of
Notary Public
My Commission Expires:
Ms. Deb G6nima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
June 7, 2006
Page 2
Michael Siegrist Date
Operator
State of )
)ss.
County of �
The foregoing instrument was acknowledged before me this day of , 2006,
by as of
Notary Public
My Commission Expires:
. . 7. � -
Tyler ackard Date
Carma (Colorado), Inc
St8t0 Of �e%�ndn �
)SS.
County of T/'!'on�o.✓ )
The foregoing instrument was acknowledged before me this y� day of 7..,��_ , 2006,
by /P , �n�oi✓ —as PYPIF /�9f„��m., ��/o.oB2G.,) T,✓� .
.�
. �
LISA A. CONNELY ota Public
NOTARY PUBLIC My Commission Expires: /%9/�onl. _
STATE OF COLORADO
My Commis;ion Expi;es Oct.2�,2006
June 7, 2006
Ms. Deb Gonima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
1313 Sherman Street, Room 215
Denver, CO 80203
Re: DMG Permit Amendment; M-1962-015
Siegrist Construction Company
Dear Ms. G6nima,
St. Vrain Sanitation District is aware of Carma (Colorado), Inc.'s plans to grade and construct a
slurry wall around the existing gravel pits north of the St. Vrain River and east of Interstate 25.
We understand that in order to do this work a Division of Minerals and Geology permit for
reclamation is required.
It is our understanding that the pond reclamation will have no negative effect on our utility or any
significant, valuable, and permanent manmade structure located within two hundred feet of the
affected land. It is also our understanding that the Operator of the site, Siegrist Construction
Company, is ultimately liable for operations pertaining to the reclamation of the ponds, Carma
(Colorado), Inc. agrees to compensate any damage to any utility's structure, should such
damage occur.
5incerely,
Name Date
St Vrain Sanitatfon District
State of �
)ss.
County of � -
The foregoing instrument was acknowledged before me this day af , 2006,
by as of
Notary Public
My Commission Expires:
Ms. Deb GGnima
Environmental Protection Specialist
Division of Minerels & Geology
Department of Natural Resources
June 7, 2006 -
Page 2
Michael Siegrist Date
Operator
State of �
)ss. -
County of 1
The foregoing instrument was acknowledged before me this day of , 2006,
by as of
Notary Public
My Commission Expires:
�����-
Tyler Packard Date
Carma (Colorado), Inc
State of �o%n�� �
)ss.
County of_,,TL'l.,� s � 1 -
The foregoing instrument was acknowledged before me this y� day of T,✓o_ , 2006, !�
by /„ /.0 1'A/��a�✓ as,'/,�.v.fSn,., L ..ns. nf / 'iln.n .�/�.,/or�,..�q)._t.✓l.'. i
'�7 i
�
�j ///� I
�l�_ /A ( dmir.�f/ i
LISA A. CONNELY Nota�y Public �
NOTARY PUBUC My Commission Expires: ���9��O9/ i
STATE OF COLORADO {
My Cemmission Er,pir=s 0ct.2° _,,i"5 I
�
i
,
;
June 7, 2006
Ms. Deb Gonima
Environmental Protection Specialist
Division of Minerels & Geology
Department of Natural Resources
1313 Sherman Street, Room 215
Denver, C�80203
Re: DMG Permit Amendment; M-1982-015
Siegrist Construction Company
Dear Ms. G6nima,
Kinder Morgan is aware of Carma (Colorado), Inc.'s plans to grade and construct a slurry wall
around the existing gravel pfts north of the St. Vrain River and east of interstate 25. We
understand that in order to do this work a Division of Minerals and Geology permit for
reclamation is required.
It is our understanding that the pond reclamation wiil have no negative effect on our utility or any
significant, valuable, and permanent manmade structure located within two hundred feet of the
affected land. it is also our understanding that the Operator of the site, Siegrist Construction
Company, is ultimately liable for operations pertaining to the reclamation of the ponds, Carma
(Colorado), Inc. agrees to compensate any damage to any utility's structure, should such
damage occur.
Sincerely,
Name Date
Kinder Morgan
State of 1
)ss.
County of 1
The foregoing instrument was acknowledged before me this day of , 2006,
by as of
Notary Public
My Commission Expires:
Ms. Deb Gonima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
June 7, 2006
Page 2
Michael Siegrist Date
Operator
State of >
)ss.
County of �
The foregoing instrument was acknowledged before me this day of , 2006,
by as of
Notary Public
My Commission Expires:
� (S�7�JL
Tyler Packard Date
Cartna (Colorado►, Inc
State of��ldo��/� 1
)ss.
County of� /P��id�ni✓ �
The foregoing instrument was acknowledged before me this '9� day of _7,,.�_ , 2006,
by���/..� ���n� as '� /.,a.,,..rl /lJ.,,�,.,.,.qf�o � //.'�/� �/e)Z.yi� .
� � �oy, ,/i
LISA A. CONNELY Not Public
NOTARY PUBLIC My Commission Expires: �o/a9�d�n/
STATE OF COLORADO
��dy C^m^ . ;�e;: - , _.�nc�_, . .?:,
June 7, 2006
Ms. Deb Gdnima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
1313 Sherman Street, Room 215
Denver, CO 80203
Re: DMG Permit Amendment; M-1982-015
Siegrist Construction Company
Dear Ms. Gbnima,
United Power is aware of Carma (Colorado), Inc.'s plans to grade and construct a slurry wall
around the existing gravel pits north of the St. Vrain River and east of Interstate 25. We
understand that in order to do this work a Division of Minerals and Geology permit for
reclamation is required.
It is our understanding that the pond reclamation will have no negative effect on our utility or any
significant, valuable, and permanent manmade structure located within two hundred feet of the
affected land. It is also our understanding that the Operator of the site, Siegrist Construction
Company, is ultimately liable for operations pertaining to the reclamation of the ponds, Carma
(Colorado), Inc. agrees to compensate any damage to any utility's structure, should such
damage occur.
Sincerely,
Name Date
United Power
State of �
)ss.
County of �
The foregoing instrument was acknowledged before me this day of ,2006,
by as of
Notary Public
My Commission Expires:
Ms. Deb GGnima
Environmental Protection Specialist
Division of Minerals & Geology
Department of Natural Resources
June 7, 2006
Page 2
Michael Siegrist Date
Operator
State of 1
)ss.
County of �
The foregoing instrument was acknowledged before me this day of ,2006,
by as of
Notary Public
My Commission Expires:
� 4�� ��.
T er Packard Date—'
Carma (Coloredo), Inc
State of �/oo��/� 1
)ss.
County of TL,�' ,Q ✓ �
The foregoing instrument was acknowledged before me this day of , 2006,
by%,./.o /'ni+�Qdi✓ eS .�v,./ .mo,✓�� /i>mm� ���/�nn�� T.N .
,�
LISA A. CONNELY ot Public � ���
NOTARY PUBLIC My Commission Expires: �o�1do�/,
STATE OF COLORADO
My Comm�c<.s�, c.,r.;�.,s•Oet.7_9.?006
LARGE MAPS AVAILABLE
FOR
VIEWING
AT THE CLERK TO THE BOARD'S
OFFICE, IN THE PUBLIC REVIEW FILE.
3075 St. Vrain Lakes Improvements
Lake Grading Engineers opinion cost estimate for DMG permit
EST. EST.
ITEM DESCRIPTION QUANTITY UNff UNIT COST SUBTOTAL
EROSION CONTROL
SiltFence 9680 LF $125 $12,100
Vehicle Trackin Control Device 1 EA $700.00 $700
Rip-ra forspillwa s 3264 CY $45.00 $146,880
60"Culvert 222 LF $117.00 $25,974
30"Culvert for ouUet structure) 74 LF $40.00 $2,960
Slurry Wall 1,683,400 LS $1,683,400.00 $1,683,400
Constructlon Fence 6422 LF $3.00 $19,266
Conc2te Cut-off walls 33 CY $100.00 $3,300
Tem orery Seeding and Mulching 58 AC $500.00 $29,000
Diversfon Dike 9539 LF $1.00 $9,539
Tem are Sediment Basin 10 EA $650.00 $6,5D0
Outlet Strudure 1 EA $6,000.00 $6,000
Earthwork Cut to Fill Volume 190,243 yd $1.00 $190,243
To soil Stri ings 31,160 yd $1.00 $31,160
SUBTOTAL $2,167,022
TOTAL: $2,167,022
REVISED: 6/9/2006 10:32 AM PAGE 1387'6-LAKE GRADING EC COST ESTIMATE FOR DMG.xIs
■ Vision
� Teamwork
� Commitment
■ Communication
ST. VRAIN LAKES
JN: 3075
CONDITIONAL LETTER OF
MAP REVISION (CLOMR)
Prepared for
St. Vrain Metropolitan District
No. 1 , c/o Carma Colorado
� � Carroii � Lange �
Professional Engineers & Land Surveyors
\ / 165 South Union Blvd., Suite 156
Lakewood, Colorado 80228
(303j 980-0200 Fax: (303) 980-0917
� �,.< �
�r
j ,
STORMWATER MANAGEMENT PLAN (SWMP)
� � AND EROSION AND SEDIMENT CONTROL REPORT
f � FOR
; ST. VRAIN LAKE GRAbING IMPROVEMENT PLANS
� JN: 3559
;
. ,
January 24, 2006
: ;
;
Prepared for.
CARMA Colorado, Inc.
Highland Place II
i 9110 East Nichols Avenue, Suite 180
Englewood, CO 80112
303-706-9451
� FAX-706-9453 .
� � Ppp-RE��,f
�r�C�•TAFrj`E`„�
;o
�;
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j �
Carroll & Lange, Inc.
; ; � 165 South Union Boulevard, Suite 156
, Lakewood, Colorado 80228 G(ql bb
(Fax) 303-980-0917
303-980-0200
i
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TABLE OF CONTENTS
} �
' ' Page
a �
+ � Summary of Stormwater Management Plan ................................................................... iii
�
: ;
I. Site Description .................................................................................................... 1
; � A. Project Location .............................................................................................. 1
; : B. Owner's Name and Address ........................................................................... 1
C. State Permit.................................................................................................... 1
,, D. Construction Activities..................................................................................... 2
; ; E. Proposed Construction Sequence .................................................................. 3
1. Project Implementation.............................................................................. 3
' ! 2. Post-Construction Site Inspection.............................................................. 4
: ; F. Site Area ......................................................................................................... 5
G. Runoff Coefficients and Soils.......................................................................... 5
' ` H. Existing Vegetation ......................................................................................... 5
: � I. Potential Pollution Sources............................................................................. 5
J. Non-Stormwater Discharges........................................................................... 7
" K. Outfalls and Receiving Waters........................................................................ 7
_ ` II. Site Map ............................................................................................................... 7
; III. Best Management Practices for Storm Water Pollution Prevention ..................... 8
i A. Erosion and Sediment Controls ...................................................................... 9
1. Structural Practices.................................................................................. 10
' 2. Non-structural Practices .......................................................................... 11
i B. Materials Handling and Spill Prevention ....................................................... 12
1. Materials Management Practices ............................................................ 12
' 2. Spill Control Practices.............................................................................. 14
' - JV. Final Stabilization and Long-Term Storm Water Management...:..:......:..:.......:.: 14 _
' V. Other Controls......................:............................................................................. 16
' VI. Practices for Construction Activities on Building Pads ....................................... 17
� VII. Inspection and Maintenance .............................................................................. 18
' VIII. References......................................................................................................... 20
,
Appendix A— Maps and Sediment Pond Riser Pipe Calculations
' Appendix B — Standard Forms
Appendix C —Additional BMP Measures
' ii
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�� STORMWATER MANAGEMENT PLAN (SWMP)
a ,
AND EROSION AND SEDIMENT CONTROL REPORT
q , FOR
y , ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
F �
, Summary of Stormwater Management Plan
� � The St. Vrain Lakes development is an approximately 1300-acre Planned Unit
� ; Development (PUD) located between the St. Vrain River corridor and State Highway 66,
just east of Interstate 25, in the southwest corner of Weld County. There are currently
° � 100 surtace acres of existing lakes north of the St. Vrain River, which will be enhanced
1 ; as an amenity for the community. The overall St. Vrain Lakes development will be
comprised of residential, commercial, schools, lakefront and wetland open space
' � corridors, waterfront recreation facilities, parks, and recreation centers.
ii
The Lake Grading pians are part of the first phase of the residential development. This
" � Stormwater Management Plan (SWMP) and Erosion and Sediment Control Report only
. ; covers the construction activities associated with the grading required to enhance the
existing lakes north of the St. Vrain River. A separate SWMP will be required for all
' ? other construction activities associated with Phase 1 residential development.
; ;
This report includes sediment and erosion control practices and potential pollution
� ' sources anticipated during the lake grading construction operations on the St. Vrain
. ; Lakes development. It will specify the exact location of Best Management Practices
(BMPs) and how the implementation of BMPs will be sequenced corresponding to the
phasing of the construction of the lakes. This SWMP identifies and describes
� ; stormwater BMPs that will be implemented to minimize the potential r.elease ,of
unwanfed sediment and chemicals to surFace water or ground water. These measures '
will consist of providing temporary sediment ponds, diversion dikes, and silt fences.for
i � the disturbed upstream areas. This report presents Weld County, Urban Drainage and
Flood Control District, and State of Colorado criteria for erosion and sediment control.
" Weld County is not responsible for the adequacy of this plan to meet the State of
, t . Colorado or other federal criteria.
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�� STORMWATER MANAGEMENT PLAN (SWMP)
Yi
AND EROSION AND SEDIMENT CONTROL REPORT
t i FOR
j ; ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
q }
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; I. Site Description
_ � A. Project Location
ai
Location: The project is located in Sections 35 and 36, Township 3 North,
? ' Range 68 West of the Sixth Principal Meridian, County of Weld, State of
; Colorado. The entire Phase 1 development is bounded on the north by
Weld County Road 28, on the east by an existing wetland, on the south by
" � the St. Vrain River, and on the west by Interstate 25. The existing property
� i surrounding the St. Vrain Lakes site is agriculture use. St. Vrain Lakes is a
proposed single-family development, which will also consist of commerciai,
" ' schooi, and multi-family parcels. Proposed grading associated with the lake
, ; improvements plans which is covered under this SWMP lies in
approximately the southern half of Phase 1. A copy of the Vicinity Map
_ '; showing the location of the site is located in Appendix A.
I
, ,
B. Owner's Name and Address
i CARMA Colorado, Inc.
Highland Place II
9110 East Nichols Avenue, Suite 180
� Englewood, CO 80112 . .
303-706-9451
FAX-303-706-9453
� Local Contact: Tyler Packard
- C. State Permit
This project will be covered under a permit from the Colorado Department
! of Public Health and Environment (CDPHE) for storm water discharges
associated with construction activity.
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� STORMWATER MANAGEMENT PLAN (SWMP)
� AND EROSION AND SEDIMENT CONTROL REPORT
�� FOR
� ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
�� Page 2
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' � D. Construction Activities
r; �
; ; Construction for the Iake grading plans includes the grading required to
" reshape the lakes north of the St. Vrain River. Soil disturbing activities will
„ include: clearing and grubbing; installing a stabilized construction entrance,
� ' diversion dikes, silt fences, and other erosion and sediment controls;
' ` grading; excavation for sediment basins, installation of storm sewer; and
� , preparation for final planting and seeding.
i �
Clearing and grubbing wilf be necessary to allow for the proposed grading
� � and storm sewer installation. Construction activities associated with this
y y type of development typically require the use of heavy earthmoving
equipment, dump trucks, generators, concrete mixers, and other assorted
_ � equipment. Best Management Practices (BMPs) wili be followed to provide
a � storm water quality and minimize erosion and sediment runoff. Temporary
mulching and seeding will be required in areas of grading in the interim
_� condition. The lakes in the south portion of St. Vrain Lakes development
� � will also be utilized for detention and an outlet structure will be provided to
controi the flow to the 5-year undeveloped release from the site.
, ,
� } BMPs will be installed in two general phases that correspond to the
progression of construction. Phase 1 BMP installation will occur p�ior to
grading operations on the site. Phase 1 BMPs include vehicular tracking
; j control devices, silt fences, temporary sediment ponds and diversion dikes. .
A vehicular tracking control device shall be installed prior to the mobilization
` � of construction equipment on-site. Prior to the clearing and grubbing of the
; } construction area, localized clearing shall be performed for the placement of
perimeter erosion control measures (silt fences, diversion dikes, etc.). Site
° ? clearing and grading shall commence only after phase 1 erosion control
, , measures are in place. Phase 2 BMP installation will occur after grading
operations are complete. Phase 2 BMPS include mulching, temporary
� ° seeding, surtace roughening, and permanent seeding. Once the lake
i � grading sequence of construction activities has been completed, areas
where construction will not begin within 30 days will be surface roughened
f ' to reduce erosion potential and promote infiltration and will be temporarily
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� STORMWATER MANAGEMENT PLAN (SWMP)
� AND EROSION AND SEDIMENT CONTROL REPORT
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� � seeded if the weather is appropriate for successful seed germination. The
1 ' BMP phasing plans are provided in map pockets at the end of this report.
; 4 E. Proposed Construction Sequence
, r
T, The general sequence for major construction activities will be as follows:
1 ` 1. Project Implementation
, t
� � The following general sequence of activities will be followed in the
construction process.
, t
� � a. Appoint a SWMP Ad'ministrator.
- , b. Install/construct temporary or permanent erosion control BMPs, as
� appropriate. Install temporary sediment ponds.
; }
= � c. Grade the construction site, as appropriate.
� i
d. Areas where utility installation will not begin immediately (future
phases) will be temporarily re-seeded. Phases that are proceeding
, � with the utility and road construction sequence wiil not be seeded at
this time because they will be active construction areas that will not
� be dormant for more than 30 days.
;
This construction sequence will be scheduled to allow for no lapse in
� activities of more than 30 days. Once this sequence of construction
; activities has been completed, areas where construction wiil not begin
within 30 days will be surface roughened (within 14 days) to reduce
� erosion potential and promote infiltration and will be temporarily seeded
; if the weather is appropriate for successful seed germination.
e. Implement construction activities related to the construction of
� roads including debris management, spoil piles and soil stockpiles.
Install specific BMPs as shown on the Stormwater Management
Plan (SWMP) sheets, to provide erosion protection prior to
j landscaping and re-vegetation.
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� STORMWATER MANAGEMENT PLAN (SWMP)
i � AND EROSION AND SEDIMENT CONTROL REPORT
� FOR
ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
�
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� �
" f. Install specific BMPs as shown on the Stormwater Management
t , Plan (SWMP) sheets, included in the construction plan set, to
provide erosion protection prior to landscaping and re-vegetation.
' " Detailed descriptions and exact locations of BMPs are provided in
T, the Lake Grading Construction Plan set.
" g. Complete finaf site grading including replacing stockpiled topsoil.
In addition, clean out and re-grade (as necessary) detention and
i j sedimentation ponds used for water quality capture purposes
during construction to conform to the design of the permanent site
; , drainage system.
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h. Final (permanent) seeding, sodding, planting and landscaping will
� r be the responsibility of the owner.
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i. Remove temporary control measures.
s �
; ; Sequencing of construction activities will progress as rapidly as
practical to minimize the amount of time that portions of the site are
• � disturbed. Areas that will be inactive for more than 30 days will be
; ; surface roughened to reduce erosion, slow runoff velocity and promote
infiltration. Additionally, permanent siopes steeper than 3:1 may need
_ � blankets, matting or netting for long-term exposure (greater than 2
� ; weeks). Inactive areas will be seeded with an approved temporary
native seed mix when the weather conditions are such that growth of
r , native grasses from seed is possible.
1 ;
2. Post-Construction Site Inspection
T ,
; ; - Following the completion of the project, including final re-vegetation and
landscaping, the SWMP Administrator will inspect areas that have been
' seeded and landscaped to assure that the re-vegetation and
i ; landscaping have been successful in establishing uniform ground cover
--��° - ACB—CDY-Ef-�fJt2Fla--fDf r�e_va�g�.�lAf-l�T- �f—,.-f�"- —
� ' vegetation has not been successful, spot re-vegetation or other
; ; remedial actions should be implemented to assure compliance with the
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�-% STORMWATER MANAGEMENT PLAN (SWMP)
� AND EROSION AND SEDIMENT CONTROL REPORT
t' FOR
� ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
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a �
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i � Stormwater Discharge Permit and other applicable regulations. It is
anticipated that construction activity for the residential development of
7 , phase 1 will begin immediately after the lake grading has been
' completed.
ii
F. Site Area
Rr
: The proposed lake grading portion of the site consists of approximately 2
y ' acres more or less. The current pian is to perform the grading required to
enhance the two existing lakes located north of St. Vrain River.
, ; G. Runoff Coefficients and Soiis
The pre-construction 100-year runoff coefficient ('C' value) is approximately
` ? 0.50 and the post-construction runoff coefficient is approximately 0.51
i i because a majority of the site will be park and open space. Soii data for the
subject property was obtained from the United States Department of
" ' Agriculture Soil Conservation Service (SCS) Soil Survey of Arapahoe
: ; Counfy, Colorado. Soils consist of three types: Aquolls gravelly
substratum, Colby Loam and Tassel Fine Sandy Loam. The three types of
� i soil are classified within the hydrologic soil group 'B' or 'C.' Runoff in these
r � types of soils is medium. The erosion hazard is moderate.
_ , H. Existing Vegetation
: ; The site generally slopes in a southeast direction to the two existing lakes
located north of the St. Vrain River with slopes ranging from 2% to 20°/o.
` i Areas that are not significantly impacted by agricultural use are currently
1 ; covered by approximately 6O%-65% of vegetative growth (distributed .
uniformly). This growth consists of natural grasses and other native
vegetation. Vegetative growth of areas that are significantly impacted by
� ; agricultural use are dependent on the agricultural schedule.
I. Potential Pollution Soiarces
; ; - Potential .pollution sources at the project site include sediment,
equipmenUvehicle washing, vehicle maintenance and fueling, paint,
solvents, wood treated products, petroleum products, waste storage and
; ; disposal, and off-site sediment transport from vehicle tracking. Many
chemicals typically associated with construction activities are considered
� : potential pollutants. The table below lists many of these pollutants. Careful
i � handling, storage, and application of these materials reduce the likelihood
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� STORMWATER MANAGEMENT PLAN (SWMP)
� AND EROSION AND SEDIMENT CONTROL REPORT
�' FOR
ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
�? Page 6
1
t that these chemicals wili contribute to pollution of the environment.
' Preventative practices are discussed in greater detail in Materials Handling
, , and Spill Prevention Section. The table provides a broad list of potential
i ! pollutants from a range of construction-related activities. Inclusion of a
y } chemical in the table does not necessarily impiy that the chemical will be
, � used as a part of the development construction activities.
;
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Chemicals Potentially Associated With Construction Activities
' � Potential Pollutant Sources Location
. �
Gasoline (benzene, toluene, Construction vehicles, gas Job site, access roads,
T , ethylbenzene, xylene tetraethyl cans, and generators tanks onsite, and fuel sites
' ' leads, methyl tertiary butyl ether
� t MTBE and other com ounds
Diesel fuel (and associated Heavy construction equipment Job site, access roads, and
� j constituents fuel sites
Oil, grease, and hydraulic fluids Construction vehicles, heavy Job site, access roads, fuel
" " construction equipment, sites, storage areas, and lift
z generators, small containers houses
! and lift e ui ment
� i SolveMs (TCE, TCA, and others) Small containers Job site and storage areas
Paints, stains and varnishes Small containers, bulk Job site and storage areas
v I containers and spray
e ui ment
Glues and waterproofing Small containers and bulk Job site and storage areas
f i compounds containers
i1
� � Fertilizers Bulk containers Stora e areas
? ; Chlorine h ochlorite Disinfections of water line Job site and stora e areas
Cement Bulk containers Job site and stora e areas
" Metals, paint chips, wood chips, Construction debris Job site and access roads
insulation, asbestos and lastics
Microbiological contaminants Sanitary wastewater Septic tank/leach field
i i (coliforrn, giardia, etc.) _ systems, broken sewer
lines, ortalettes
,+ Glycol Construction vehicles a�d Job site, access roads, and
equipment, small containers compressor site
' ' and bulk containers
Tackifiers Bulk containers and spray Job site and storage areas
{ ' e ui ment
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� j J. Non-Stormwater Discharges
„ Potable water is anticipated as a non-storm water discharge. Potab�e water
may be used for grading, dust control, and irrigation of erosion control and
� � permanent landscaping. An effort shall be made to use only the amount of
�. potable water required for these operations. Construction de-watering is not
` anticipated as a part of this project. Any other non-storm water discharges
� ' resulting from construction activity are not covered under this SWMP. If
� � groundwater discharges are anticipated, a separate construction de-
.' � watering discharge permit is required through the CDPHE.
�
r� K. Outfalls and Receiving Waters
ai
According to the Flood Insurance Rate Map (FIRM) for Weld County,
-� Colorado Community No. 080266 0850 C and No. 080266 0855 C dated
, September 27, 1991, a portion of the site is located within zone C, an area
outside of the 100-year floodplain, however the southern portion of the site
� � is located within the 100-year floodplain. Historically, the storm runoff from
, i the site sheet flows south to the St. Vrain River. Ail onsite flows from
disturbed land to the north due to the lake grading have been accounted for
with temporary sediment ponds.
;
II. Site Map
I
} The vicinity map located in Appendix 'A' shows the development site. A
� defailed -site map with up-to-date BMPs and tracking of progress is provided in
the Lake Grading plan set. Temporary erosion and sedimentation controls
; � including silt fences, check dams, diversion ditches, and sedimentation ponds
are presented at the end of this report, as well as any permanent controls. To
maintain compliance with CDPHE's requirements, the site map must accurately
; reflect measures implemented on the site. Often, as construction progresses,
BMPs are modified for improved efficiency. Any modifications must be
indicated on the site map and the SWMP kept on the site must reflect the
; conditions of the site. The SWMP Administrator can keep the SWMP current by
"red lining" and marking other notes on drawings and in the text of the SWMP to
accurately portray the actual erosion and sediment controls used on the site.
� Significant changes to the SWMP will need to be re-submitted to Weld County.
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ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
� � Page 8
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� � III. Best Management Practices for Storm Water Pollution Prevention
. ,
' i BMPs that will be used for storm water pollution prevention include structural
' and non-structural BMPs for erosion and sediment control as well as materials
. � handling and spill prevention measures. A detailed Stormwater Management
y ;
Plan (SWMP) will be required for the construction activities associated with the
grading required to enhance the lakes of the St. Vrain Lakes development. All
T , personnel responsible for implementation and maintenance of BMPs should
� y review and understand the BMPs identified in the SWMP. The BMPs that will
be detaifed and identified in the SWMP wili contain non-structural BMPs, as well
* , as erosion and sediment control details from several of the many available
� sources, including:
� i • Denver Urhan Drainage and Flood Confrol Disfnct (UDFCD), Drainage
; ; Cnfena Nianual, Volume 3, 1999.
r ? • Califomia Stormwater Best Managemenf Practice Handbook: Construction
: i Activify, State of Califomia, 1993.
" ' BMP measures identified in this document and plan may be applicable to the
; site. These BMPs should be viewed as a "toolbox" of water quality protection
measures. It may not be necessary to use all BMPs listed herein; however, the
� water quality protection strategy for the site should draw on measures from
}. . , these,sections .to have a plan that is appropriate for the site and a particular
� phase of construction.
: It should be noted that there is no definitive set of design details for
erosion and sediment controls and BMPs for construction. BMPs and
': erosion and sediment controls must be designed and implemented to
• work with the unique characteristics of the site. The BMPs identified
hereafter show "typical" applications of BMPs and erosion and sediment
controls. Actual implementation of ineasures on the site may vary from
' these details, so long as the intents of the measures are preserved.
When necessitated by dry and windy conditions, fugitive dust will be controlled
' by watering exposed un-vegetated areas with potable water.
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' ' All structural practices will be inspected once every 14 days and after every
, , precipitation event. Upon discovery, any degradation of structures described in
i the plan or excessive accumulation of sediments will be remedied within 48
' ' hours.
.�
� ` A. Erosion and Sediment Controls
�, Erosion and sediment control BMPs will be used to minimize the amount of
: i soil transported to receiving waters and/or wetlands from areas disturbed as
a result of construction activities. BMPs may be classified as:
��
� j • Temporary (operative during construction)
^ � • Permanent (continuing after construction)
< i
• Structurai (e:g. silt fences, swales, ponds, sediment traps, surface
" } grading, storm sewers, drainageways (including roads), etc.)
; f
• Non-structural (e.g. limiting disturbed areas, timing projects to avoid
� ? heavy precipitation, soil stabilization, mulching, street sweeping,
: i maintaining buffer zones, education and outreach to production staff
and sub-contractors on erosion and sediment control practices, good
" housekeeping, and other SWMP provisions, etc.)
; ,'
Four basic approaches are used for controlling erosion from storm water
runoff in construction areas:
, ;
1. Stages of construction that disturb surface soil are sequenced to
' ' minimize the amount of time during which soil is exposed to potential
i � erosion conditions. -
� ' 2. Temporary re-vegetation, or s.urface roughening and mulching is used if
� } construction areas must remain bare for periods of time long enough to
pose a potential erosion threat.
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� � 3. BMPs are installed up-gradient of significant surtace disturbances to
� � reduce the volume and velocity of runoff entering disturbed areas.
� ,
4. BMPs are installed down-gradient of significant surface disturbances to
' ' reduce the volume, velocity, and sediment load of runoff generated in
� , disturbed areas as a result of precipitation events.
� ' The erosion and sediment control strategy for a construction project is
T � dynamic. As phases of construction progress, the strategy and measures
� � implemented must evolve to remain effective.
� � 1. Structural Practices
: �
17
Structural practices for this site include silt fences, erosion logs, rough
- � cut street control, diversion dikes, vehicular tracking control, and
; sedimentation ponds.
- i Erosion controls and construction shall be phased to be fully effective.
,_ � A vehicular tracking control device shall be installed prior to the
mobilization of construction equipment on-site. Prior to the clearing and
- grubbing of the entire phased construction area, localized clearing shall
, ; be pertormed for the placement of perimeter erosion control measures
(silt fences, erosion logs, etc.). Site clearing shall commence only after
_ � perimeter erosion control measures are in place.
� ;
• Vehicle Tracking Controls (VTCs) are used in order to prevent
; ; construction vehicles from tracking mud, soil and other debris onto
public roads. They consist of a stone-stabilized pad placed at the
^ � exit of the site. When vehicles move over the pad, the rough
� ; surtace shakes loose any mud and debris that may have been
carried into the public right of way. VTCs will be located wherever
' ` the site borders a public right-of-way, street, alley, or parking area or
: , any point where vehicular tra�c will �ccess the site while roads and
utilities are under construction.
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�' Page 11
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� ; • Sediment Control logs are linear barriers of tightly wrapped straw
' ' or soil wrapped in filter fabric that are installed to slow runoff velocity
. , and inhibit movement of sediment down the slope.
' � • Outlet protection placed directly below an outfall from a pipe,
. , interceptor dike, swale, channel or other storm drain consists of
� stone, riprap, concrete, or paved aprons. These structures reduce
the velocity of concentrated stormwater flows and minimize erosion
r i and scour. They are used for both temporary and permanent
; BMPs.
� � • Check dams are small, temporary dams of rock, sandbags, or other
, j material and slow runoff velocity and promote sedimentation. They
are used in swales and channels to reduce the velocity of
� concentrated stormwater flows, thus allowing sediments to settle
; and minimizing down slope erosion and scour. Check dams may
�
serve as both temporary and permanent BMPs.
i • Temporary Sedimentation Basin is a sedimentation basin that
acts as a sediment entrapment facility with a water quality control
structure. The basin traps sediment suspended in storm runoff,
i prevents any offsite transport of soil, and allows storm flows to
,
continue downstream.
� • Silt Fence is a woven synthetic material that can be placed as a .
temporary barrier along the contour at the base of a disturbed area
' to filter sediment from runoff.
I . Diversion Dikes are placed wherever there is a sharp turn in the
'- runoff flow pattern, such as tee-intersections. The dikes force the
� runoff to follow the intended path, and prevent erosion and the
formation of unwanted swales.
' 2. Non-Structural Practices
; Non-structural practices may include temporary seeding, permanent
� seeding, mulching, geotextiles, sod stabilization, vegetative buffer
;
�* STORMWATER MANAGEMENT PLAN (SWMP)
S � � AND EROSION AND SEDIMENT CONTROL REPORT
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ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
� � Page 12
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� ` strips, protection of trees, and preservation of mature vegetation. All
� ` seeding, fertilizers, and mulching shall conform to the approved
, , construction plans, the Weld County Criteria and the Urban Drainage
guidelines. All disturbed areas shall be stabilized by seeding in
' ' accordance with the seed mix specified on the approved erosion control
, , plan. The engineer may require additional BMPs as necessary to
� ;
retard sediment transport.
r � Non-structural controls for this site shall include permanent seeding and
� � mulching.
• Mulching is the application of a layer of plant residue or similar
; � materials over a certain area in order to reduce the effects of
raindrop surtace impact, slow the velocity of overland flow and
� � reduce wind erosion.
� � • Blankets, Netting, or Matting can be used on permanent slopes
- steeper than 3:1 to reduce erosion.
� � . Temporary Seeding is required in areas that have been graded but
are not to be permanently re-vegetated for an extended period (not
` � to exceed 2 years). Seeding produces a vegetative cover, which
greatiy decreases the effects of erosion.
� ,
; � B. Materials Handling and SpiII Prevention
1. Materials Management Practices
� � Materials are sometimes used at the construction site that present a
potential for contamination of storm water runoff. These include fuel,
; ; oil, lubricants, paints, solvents, concrete-curing compounds and other
liquid chemicals such as fertilizers, herbicides and pesticides.
- Practices that can be used to prevent or minimize toxic materials in
( ; runoff from a construction site are described in this section.
� : A list of all potentially toxic or hazardous chemicals used shall be
; ; maintained on the site. Warning labels must be attached to all
potentially toxic or hazardous chemicals. Material Safety Data Sheets
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�� Page 13
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; � (MSDS) and other safety information for a potentially toxic or hazardous
` ' substance will be on file and accessible (on the site) during all periods
in which the substance is used or stored.
In addition to maintaining an inventory of potentially toxic and/or
. , hazardous materials and associated safety information, the following
materials management practices must be foilowed:
� } • Materials will be handled in accordance with Occupational Safety
: � and Health Administration (OSHA) requirements and manufacturer's
instructions.
„
; ; • Chemicals regulated under the Comprehensive Environmental
Response, Compensations and Liability Act (CERCLA) will be
' � reported and handled in accordance with relevant regulations.
• Materials stored at the construction site will be covered or otherwise
" ` protected from the elements.
< ≤
. The quantity of fuel and lubricants stored at the construction site will
' be limited to the amount that is reasonable to support the specific
i i construction or maintenance activity. Strict storage practices (i.e.,
off-site storage) are preferable. Fuel, hydraulic oil and form oil
" should be stored offsite.
; i _
• Bulk storage areas for materials not consumed on a daily basis will
`: ' be enclosed and protected from the elements and contained in a
� � manner to prevent release to the environment.
' • Petroleum products and fertilizers wili be stored at separate facilities
� ' or isolated by impermeable barriers.
• Hypochlorite and other chlorine compounds will be stored
` separately from other materials and kept dry.
' • Areas at the construction site that are used for storage of toxic
' materials and petroleum products shall be designed with an
;
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r, ' AND EROSION AND SEDIMENT CONTROL REPORT
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� ` ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
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enclosure, container, or dike located around the perimeter of the
° ' storage area to prevent discharge of these materials in runoff from
� , the construction site. These barriers will also function to contain
spilled materials from contact with surface runoff.
? � • Measures to prevent spills, or leaks of fuel, gear oil, lubricants,
; antifreeze, and other fluids from construction vehicles and heavy
equipment shall be considered to protect groundwater and runoff
quality. All equipment maintenance shall be pertormed in a
; ; designated area and measures, such as drip pans, used to contain
petroleum products. Spills of construction-related materials, such
- � as paints, solvents, or other fluids and chemicais, shall be cleaned
� j up immediately and disposed of properly.
' ? • Concrete trucks and other concrete coated equipment shall be
, � cleaned only in properly bermed, designated washout areas.
" • Hazardous mateYials and wastes shall be stored in covered, leak-
f proof containers.
' • When fueling must take place onsite, designate an area away from
� drainage courses to be used. Dedicated fueling areas shall be
protected from stormwater runon, runoff, and shall be a minimum of
50 ft away from drainage courses. Area is to be protected with
, berms and dikes. Secondary containment, sueh as a drop cloth or
drain pan, will be used to cafch spills if necessary. If a small spiil
does occur, the operator will use absorbent materials to remove as
� much of the spill as possible. The spent absorbent material will be
disposed of properly and promptly. There will be no bulk storage of
fuel on-site.
i � -
2. Spill Control Practices
� Ali employees must be trained to recognize "significant spills" based on
the relative toxicity of the material. Spills should be cleaned
immediately, using as little water as possible to avoid spreading.
' Stockpiles of cleanup materials should be stored in an easily accessible
;
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� AND EROSION AND SEDIMENT CONTROL REPORT
T� FOR
� ' ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
't Page 15
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i � area. All employees should be notified of the location of the MSDS and
the cleanup material storage location and shouid be trained to clean up
. , spills. All construction site personnel must follow spill prevention and
� ;
control practices as follows:
• Designated individuals on the site will receive training on cleanup
f? procedures for various types of chemicals and the location of
r : information and cleanup supplies. The MSDS for a chemical
provides information about health hazards, safe handling, use, and
' ! control measures. The MSDS for all chemicals used on the site will
: i be kept on the site, and workers will be required to review the MSDS
i }
for materials they are working around.
l� . Spills will be cleaned up promptly after discovery, and materials
used for spill cleanup must be disposed of offsite at an approved
T � facility.
- } • Personnel will wear appropriate protective equipment to prevent
��
injury resulting from contact with a toxic substance.
• The designated coordinator and the SWMP Administrator will be
V notified immediately of any spill of a toxic or hazardous material that
threatens human health or the environment. The SWMP
i � Administrator (or designee) must in turn report the spill to the
appropriate federal, state, or local agencies in accordance with
_ ; appiicable regulations.
� 1 . If a spill occurs, this plan will be reviewed and appropriately revised
to incorporate measures to reduce the likelihood of a spiil
' reoccurring and to improve response time and cleanup
� � effectiveness.
• For any construction activities covered by this plan that involve the
; ; use of toxic or hazardous substances, on-site spiil prevention and
cleanup coordination, in the event of a spill, will be the responsibility
� � of the site superintendent.
Ii
• Sweeping will be required of adjacent roadways weekly minimum
� ' and daily during hauling (at the end of the day).
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� ? IV. Final Stabilization and Long-Term Storm Water Management
� i
„ All temporary erosion and sediment control measures shall be removed and
; � disposed within 30 days after final site stabilization is achieved, or after the
temporary measures are no longer needed, whichever occurs earliest, or as
T , authorized by the local governing jurisdiction. Temporary erosion control
� measures may be removed only after streets and drives are paved and all areas
t ' have achieved final stabilization. Trapped sediment and disturbed soil areas
, l resulting from the disposai of temporary measures must be returned to final
; j plan grades and permanently stabilized to prevent further soil erosion.
r � Final stabilization is reached when all soil disturbing activities at the site have
; j been completed, and uniform vegetative cover has been established with a
density of at least 70 percent of pre-disturbance levels or equivalent permanent
� � physical erosion reduction methods have been employed.
i �
V. Other Controls
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� � Additional provisions of the erosion and sediment control plan relating to waste
� disposal include:
� � . The contractor shall remove all sediment, mud and construction debris that
� j may accumulate in the flow lines and public rights-of-way as a result of the
� ; site development. This shall be p.erFormed in a timely manner.
� • Soil stockpiles shall be protected with temporary perimeter sediment barriers
, ;� at all times.
'. • The contractor shall confrol sediment, debris and all other pollutants from
, i entering the storm sewer system as a result of construction operations.
: ' • The owner and designated agents shall ensure that all loads of cut and fill
. } material imported or exported from the site shall be properly covered to
: ,
prevent loss of the material during transport on public rights-of-way.
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f' FOR
� ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
� ' Page 17
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� � . Vehicle tracking control shall be required at all access locations to the
' ' project site to prevent tracking debris offsite before street paving is
, , complete.
' ' . BMPs for erosion and sediment control shall be properly inspected and
t , maintained throughout the duration of the construction activity to a level
� where BMP performance is not compromised.
T � • Sweeping of adjacent roadways weekly at a minimum and daily during
; ; hauling at the end of each day.
r � VI. Practices for Construction Activities on Building Pads
ii
The SWMP Administrator will work with production staff and sub-contractors to
�� assure that the following erosion and sediment control practices are
w ; implemented as units are constructed and landscaping occurs.
° ; A. The amount of time that building soil, landscaping materials, etc. are left in
; j the right-of-way will be minimized to the extent practical. Inactive stockpiles
will not be permitted in streets. Production staff and sub-contractors will be
' ? required to sweep up remnants of stockpiles remaining in streets after
: ; stockpiles have been moved on to lots.
' ; B. Dirt curb ramping to bring heavy equipment and materials on to landscaping
i � iocations is not allowed. . - . . -
' � C. Streets will be scraped and/or swept, and gutters will be cleaned foilowing:
i �
1. Completion of foundation excavation and backfilling
2. Completion of water and sewer connection work
i i 3. Completion of flat work -
„
4. Tracking of soil material onto streets
�
i ; D. Blow trash will be picked up and disposed of on building sites as necessary.
j ' E. Parking for production staff and sub-contractors will be allowed only on
� � paved or otherwise stabilized areas.
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� AND EROSION AND SEDIMENT CONTROL REPORT
i E FOR
�` ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
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F. Vehicle access to lots wiii be minimized during wet weather to the extent
T , practical.
° ' G. Vehicle fueling will use a fueling truck that will temporarily access the site
„ for fueling. Fueling of vehicles will occur away from watercourses. Any
- ! spilled fuel will be cleaned up immediately. There will be no bulk storage of
: :
fuel on-site.
; I H. Fuel, hydraulic oil and form oils will be stored offsite. To the degree that
hazardous materials used in construction (oils, solvents, etc.) must be
x � stored on-site, quantities of materials will be minimized, and storage will be
i j in accordance with the BMP section of this SWMP.
� , I. Temporary stockpiles for use in house backfill shall be stabilized if they will
: } be inactive for more than 14 days.
- J. Portable toilets will be located at least 50 feet away from storm sewer inlets.
; j They will be located in level locations, but not in drainage paths, curb and
gutter, or on sidewalks and drives. They shall also be stabilized to minimize
� � the risk of tipping over. Downstream perimeter controls shall be installed to
, � prevent leaks from entering the storm sewer system.
= � K. Trash bins will be located at least 50 feet away from storm sewer inlets.
, i They will be located in level locations, but not in drainage paths, curb. and
gutter, or on sidewalks and drives. Downstream perimeter controis shall be
� � installed to prevent contaminants in storm water from entering the storm
� ; sewer system
; f VII. Inspection and Maintenance
it
All temporary and permanent erosion and sediment control practices shali be
� maintained and repaired by the contractor during the construction phases as
!,; needed to assure continued performance of their intended function. Silt fences
may require periodic replacement and all sediment accumulated behind them
i ' must be removed and disposed of properly. All disturbed surface areas are to
; j be stabilized in accordance with the approved SWMP/Erosion Control Plan or
„
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� ; STORMWATER MANAGEMENT PLAN (SWMP)
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� FOR
ST. VRAIN LAKE GRADING IMPROVEMENT PLANS
i� Page 19
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�� approved amendments and shall be reviewed onsite by the SWMP
� ' Administrator.
T�
The SWMP Administrator shall individually observe each BMP that is shown on
' ' the approved SWMP/Erosion Controi Plan or approved amendments. This
, k review shall include completing and signing the "Field Review ReporP' (see
i � Appendix 'B') for each review date. Any deviations from the approved plan shall
" be noted on the Report and discussed with the city erosion inspector. The
T , reviewer shall especially note any BMP that is not in compliance with the
' ! approved plan/approved amendments. Deficiencies that are not immediately
` repairable should be reported to the construction superintendent, the owner, or
Q 1 his/her designee for instructions on how to proceed. The review shall also
� j include recommended courses of action based on the field review. BMPs shall
be reviewed in accordance with the Erosion Control BMP and/or Sediment
, , Control BMP specifications and criteria listed hereinafter.
� � The Stormwater Discharge Permit will require that a thorough inspection of the
- � storm water management system be performed at least every 14 calendar
G days, and after every precipitation or snowmelt event. In the event the project
has been winterized and/or no construction activity is occurring for an extended
' � period of time, a field review maybe completed every 30 calendar days with the
, � approval of the Weld County inspector.
The following are some of the inspection and maintenance practices that will be
; ; used to maintain erosion and sediment control BMPs:
• "All measures will be maintained in good working order, if a repair is
, ; necessary, it will be initiated within 48 hours of the report.
' . Built-up sediment will be removed from the silt fence when it has reached
� one-third the height of the fence, or if the silt fence no longer functions
properly.
% . Built-up sediment will be removed from BMPs when it has reached one-half
the height of the BMP, or if the BMP no longer functions properly.
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�� FOR
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� � Page 20
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� S . Silt fence will be inspected for depth of sediment, tears, to see if the fabric is
securely attached to the fence posts, and to see that the fence posts are
? � firmly in the ground.
" • The sediment basins will be inspected for depth of sediment, and built up
�t sediment will be removed when it reaches the sediment elevation identified
� j on the plans and/or at the completion of the project.
T, VIII. References
i �
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A. Weld County Ordinance Code, Chapter 24, Weld County, December
q � 2002.
iJ
B. Urban Storm Drainage Criteria Manual, Urban Drainage and Flood Control
T � District, Volume 1-2, June 2001.
� i
C. Urban Storm Drainage Criteria Manual, Urban Drainage and Flood Control
= 1 District, Volume 3, December 2004.
�
: i
D. Califomia Sforrnwater BMP Handbook, California Stormwater Quality
- � Assoc., January 200S
< 1
E. Soil Survey of Weld County, Colorado, U.S. Department of Agriculture
° r Soil Conservation Service, September 1980.
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APPENDIX A-
� MAPS AND SEDIMENT POND RISER PIPE
CALGULATIONS
, �
� .
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� � SH 66
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� = � ST.YRAIN LAKES Z
�'k �:����� ° FUTUBE PHASES °
11 `��mz�!R, o g
' W 3
'f� - _ - 3
` NlELD COUNTY ROAD 28
ii � G�EE�
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' � � � ARBWR �R.� .� .w.
1 � T ,�� . �., D �
O m WELD COUNTY z� Q-��
" R 24.5 a o; P .
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� � WELD COUNTY ROAD 119 QP
i i TO �
LONGMONT �
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TO
� i DENVER
� I
� 1
� � Carroll s�. Lange=
, , VICINITY MAP �� P,o,e,=�o�a,E�9��,=s�.�as�.er�,s
t6s sauln unlan Blm..soilelss
� � N . T. S . � �/ �yV,CAPR0 L�LANGE C�M
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t�� �
'u � Carroll & Lange =
\ 165 South Union Blvd.,Suite 756
,�� / Lakewood,Colorado 80228
fij 303/980.0200 Job. No. 3075
Fax:303/980-0917
�� Date 06/08/06
' } PROJECT St.Vrain Lakes Sheet 1 of 4
�� SUbject Temporary Sediment Basin BY MMU
� ;
�'' Sediment Pond 1
; y Tributary
Disturbed Area= 24.5 acres
T Undisturbed Area= 0 acres
? f Temporary Sediment Basin = Disturbed Area x 1800 ft'/acre+ Undisturbed Area x 900ft'/acre
iV
Temporary Sediment Basin = 44100 ft'
` } = 1.0124 acft
if
Volume Provided= 1.0600 ac-k (Sedimentation Pond 1
�� = 46173.6 ft'
° � Sediment Pond 2
Tributary
� ' DisWrbed Area= 59.81 acres
� t
i y Undisturbed Area= 0 acres
Temporary Sediment Basin = Disturbed Area x 1800 ft'/acre+ Undisturbed Area x 900ft'/acre
��
; � Temporary Sediment Basin = 107658 ft3
' = 2.4715 ac-ft
� � Volume Provided = 2.5000 ac-ft (Sedimentation Pond 2
< i = 108900.0 h'
; ? Sediment Pond 3
a j . _ � � . . � Tributary� . � - � . . . . � . . �
Disturbed Area= 22.7 acres
, � Undisturbed Area= 0 acres
Temporary Sediment Basin= Disturbed Area x 1800 ft'/acre + Undisturbed Area x 900ft'/acre
Temporery Sedimenl Basin= 40860 ft3
' ! = 0.9380 ac-fl
� �
31
Volume Provided= 0.94 ac-ft (Sedimentation Pond 3
�.� = 40946A ((3
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� Sediment Basin.xls
� : Carroll & Lange =
� 165 South Union Blvd..Suite 156
� / Lakewood,Cobrado 60228
303/980-020o Job. No. 3075
Fax: 303/980-0917
�� Date 06/08/06
PROJECT St.Vrain Lakes Sheet 2 of 4
�� SUbJ@Ct Temporary Sediment Basin By MMU
� 1 Sediment Pond 4
; �
� s Tributary
Disturbed Area= 12.2 acres
q� Undisturbed Area= 0 acres
� I� Temporary Sediment Basin = Disturbed Area x 1800 ft'/acre+ Undisturbed Area x 900ft'/acre
51
Temporary Sediment Basin= 21960 ft'
' � = 0.5041 ao-ft
1
Volume Provided= 0.55 ac-ft (Sedimentation Pond 4
T� = 23956 ft'
₹� Sediment Pond 5
Tributary
''� Disturbed Area = 12.6 acres
i � Undisturbed Area= 0 acres
Temporary Sediment Basin=Disturbed Area x 1800 ft'/acre+ Undisturbed Area x 900ft3/acre
� � Temporary Sediment Basin= 22680 n'
i = 0.5207 ac-ft
' � Volume Provided= 0.6 ac-ft (Sedimentation Pond 5
i I = 26136 ft'
� t Sediment Pond 6
1 i - TribuYary
` ' Disturbed Area= 29.3 acres
Undisturbed Area= 0 acres
� � Temporery Sediment Basin = Disturbed Area x 1800 ft'/acre+ Undisturbed Area x 900ft3lacre
ii
Temporary Sediment Basin= 52740 ft'
it _ � = 12107ao-ft
j }
Volume Provided= 1.21 ac-ft (Sedimentation Pond 6
{ F = 52707.6 ft'
� ;
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Sediment Basin.xls
�
►� Carroll & Lange =
165 South Union Blvd.,Suite 156
�� Lakewood,Coloredo 80228
3o3/980-0200 Job. No. 3075
Fax:303/980-0917
Date 06/08/06
�� PROJECT St.Vrain Lakes Sheet 3 of 4
� � SubjeCt Temporary Sediment Basin BY MMU
� ;
I� Sediment Pond 7
� � Tributary
Disturbed Area= 22.4 acres
Undisturbed Area= 0 acres
:� ! Temporary Sediment Basin = Disturbed Area x 1800 ft3/acre+Undisturbed Area x 900ft'/acre
; }
Temporary Sediment Basin = 40320 ft'
; ? = 0.9256 ao-ft
, �
7
Volume Provided= 123 ac-ft (Sedimentation Pond 7
= 53578.8 ft3
� f
� � Sediment Pond 8
Tributary
: ; Disturbed Area= 17J acres
� Undisturbed Area= 0 acres
Temporery Sediment 8asin = Disturbed Area x 1800 ft3/acre+ Undisturbed Area x 900ft'/acre
f�
! Temporary Sediment Basin = 31860 ft'
= � = 0.7314 ao-fl
` � Volume Provided = 0.71 ao-ft (Sedimentation Pond 8
i, i = 30927.6 ft'
� i Sediment Pond 9
: ; Tributa'ry . . _
" ' Disturbed Area= 28 acres
Undisturbed Area= 0 acres
Temporary Sediment Basin = Disturbed Area x 1600 ft'/acre + Undisturbed Area x 900ft'/acre
Temporary Sediment Basin = 50400 ft3
:� �
_ = 1.1570 ac-ft
: i
Volume Provided = 1.2 ac-ft (Sedimentation Pond 9
r �
= 52272 h'
� '
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I. Sediment Basin.xls
� ; '�II Carroll & Lange =
iiit r�� 165 South Union Blvd.,Suite 156
� `I, Lakewood,Colorado 80228
303/980-0200 Job. No. 3075
Fax:303/980-0917
�� Date 06/OS/O6
, ' PROJECT St.Vrain Lakes Sheet 4 of 4
�� SUbject Temporary Sediment Basin BY MMU
Jt
' � Sediment Pond 10
d ; Tributary
Disturbed Area= 13.33 acres
T � Undisturbed Area= 0 acres
Temporary Sediment Basin = Disturbed Area x 1800 ft'/acre+Undisturbed Area x 900ft'/acre
ii
Temporary Sediment Basin= 23994 ry'
f� = 0.5508 acft
� I
Volume Provided= 0.54 ac-ft (Sedimentation Pond 10
{ � = 23522.4 h'
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Sediment Basin.xls
� SEDIMENTATION VOLUME vs. STAGE
, for
' SEDIMENTATION POND 1
� PROJECT NAME: ST. VRAIN LAKES FILWG NO. 1 DATE: 615/2006
PROJECT NO.: 3075 DESIGN BY: MMU
S7
� ACCUMULATED
� t IIVCREM'ENTAL� TOTAL TOTAL
ELEV. � �� AREA(FT�) STAGE(FT) VOLUME(FT') VOLUME(F'I'). VOLUME(nC-F"[')�
�}f 4836.00 � 5,869 0.�0 0 0 0.00
t 4837.00 7,120 1.00 6,484 G,484 0.l5
4838.00 8,456 I.00 7,778 14,263 033
?� 4839.00 9,863 I.00 9,150 23,413 0.54
� � 480.0.00 11,323 IA0 1Q585 33,998 0.78
� ' 484L00 12,878 I.00 12,092 46,090 1.06
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aeaz.00
..
______
_ _._ ___
' -y W WS ELE .4 41
�1 q8a1.00
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___
.._ ......_ - __ .....
� � 4840.00
._. ._..__ _...___
_— _'
_—....__ .. -.._ ____ __._.....
.W EL V.4 39
£( � 4839.00
i. 1 W _ __. _. . -_....__ . ._...
� _"'__
._._ "'_—_-_
6
' j ai 4838.00
i � _....___. ..__ ._.__. _ — ._ _ _
4837.00
T+
t{ — __'_ __.... __....— __..
�1 � —' - ._._ ......_'_ "_ _' _ _'_ :
4836.00
� � _ ___ ._._ __ __
1 � 4835D0
0 0.050.1 0.15020250.30.350.4 0.450.50.550.60.650.70.750.80.85 0.90.95 1
� i VOLUME(AC-F!)
LJ
�
,
. 1
Sedimentation Volume =0.53 ac-ft
� Stormwater Capture Volume=0.53 ao-ft
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I
;
CARROLL LANGE,INC. 6/5/2006
i
�1 ; \ Carroll & Lange =
� 165 South Union Blvd.,Suite 156
� Lakewood,Coloredo 80228
303/980.0200 Job.No. 3075
Fax:303/980-0917
�� Date 06/06/06
i PROJECT St.Vrain Lakes Sheet 1 of 1
S� SubjeCt Riser Pipe-Sedimentation Pond t By MMU
� I
�� Release Water Quality Capture Volume over 40 hours
� ;
li
Dwq = Stormwater Capture Water Surface Elev. -Sedimentation Volume Water Surface Elev.
T� Dwq=4841 ft-4639 ft= 2.00 ft
IJ
Area Required per Row of Holes,A=WQCV/I(4o
�r
l � IC4o=0.013(Dwq)2+022(Dwq)-0.10
T 1 �o= 0.392
i �
t� WQCV= 0.53 acft
fi A= 1.352041 sq-inch
f
, i
Determine Hole Size and Number of Holes per Row(Figure 5-2)
'1
� Try: 3 Columns of 13/16"Holes with 8" Riser Pipe
, �
(0.52 sq-inch/hole)(3 hole)= 1.56 sq-inch
, { Determine Number of Rows
J Number of Rows= Dwq/(Minimum Row Spacing (4 inches)+ Dia. Hole)
� � Number of Rows-=� 5.30973 Use 5 Rows � - - - � �
! Use 5 Rows of 3 x13/16"Holes with 8" Rfser Pipe
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� Sediment Basin.xls
� SEDIMENTATION VOLUME vs. STAGE
for
� SEDIMENTATION POND 2
PROJECT NAME: ST. VRAIN LAKES FILING NO. 1 DATE: 6/5/2006
1 PROJECT NO.: 3075 DESIGN BY: MMU
��
� F � � � ACCUIVIULATED �
. INCREMENTAL TOTAL TOTAL
� ELE�!. AREA{FI'Z STACE�. FT) VOLUME(FT�), VOLUME.(FT'j .� VOLUME(AC-FT)
4830.00 16,173 0.00 0 0 0.00
�� � 4831.00 19,177 I.00 6,392 6,392 �O.15
4832.00 22,292 1.00 20,715 27,I08 0.62
S� 4833.00 25,518 ].00 23,SB7 SQ99S 1.17
? �� 4834.00 28,854 L00 27,169 78,163 1.79
1 � 4835.00 32,300 L00 3Q561 108,724 2.50
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TOTAL VOLUME(FT3)
�.� 4836.00 -
i f --_ _. _ _. _.._ ---
4835.00 W W EL V. 83 0
��� - --... ____---- - - --
� aaaa.ao -- -—- --
� —
__ - - -- --- ---. _ _ _-- — - _
• S �. S E EV. 833 1
f � 4833.00
w
�7 .__ - _ -.__._. . ...__.._.__._-.__ - ..____....... __._...
t <
€ y 4832.00
1
' 4831.00 � .
[
j . ' _ __ _ __ _'___
4830.00
r
_ _ _------.___
' 4829.��
0.0 0.1 02 0.3 0.4 0.5 0.6 07 0.8 0.9 1.0 1.1 L2 1.3 1.4 1.5 1.6 17 1.8 7.9 2.0 2.1 2.2 2.3 2.4 2,5 2.6
i
' VOLUME(AGFT) �
1 �
i
I
Sedimentation Volume=125 ac-ft
1 Stormwater Capture Volume = 1.25 ac-ft
�
I
I
CARROLL LANGE,INQ . 6!5/2006
}
' /� Carroll & Lange =
� '��/ �\-, 165 South Union Blvd.,Suite 156
���.. � � I/ Lakewood,Colorado 80228 �
� 303/980-0200 Job.No. 3075
Fax:303/980-0917
�� Date 06/06/06
� } PROJECT St. Vrain Lakes Sheet 1 of 1
� � SubjeCt Riser Pipe-Sedimentation Pond 2 By MMU
! �
T? Release Water Quality Capture Volume over 40 hours
: �
Dwq = Stormwater Capture Water Surface Elev. -Sedimentation Volume Water Surface Elev.
�t
Dwq=4835 ft-4833.1 ft= 1.90 ft
; i
Area Required per Row of Holes,A=WQCV/ICao
� �
� � ICao=0.013(Dwq)Z+0.22(Dwq)-0.10
I I Kao= 0.36493
�
WQCV= 1.25 ao-ft
�
A= 3.425314 sq-inch
1
t
Determine Hole Size and Number of Holes per Row(Figure 5-2)
� Try:3 Columns of 1 1/4"Holes with 8"Riser Pipe
� (1.250 sq-inch/hole)(3 hole)= 3.75 sq-inch
; Determine Number of Rows
� Number of Rows= Dwq/(Minimum Row Spacing (4 inches)+Dia. Hole)
� Number of Rows= 4.34286 Use 4 Rows
' Use 4 Rows of 3 x 1 1/4" Holes with 8"Riser Pipe
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Sediment Basin.zis
�
SEDIMENTATION VOLUME vs. STAGE
for
SEDIMENTATION POND 3
� PROJECT NAME: ST.VRAW LAKES FIL�NG NO. 1 DATE: 6/6/2006
I PROJECT NO.: 3075 DESIGN BY: MMU
S�
! � ..... . �. ' � ACCIl'1V�IT]„4�`�:b
� T'�T'G�71`IEIi'TetiL 'F�fiAL TO'I'AI.,
� 1
ELEY. ,. ":?#.E�kT;�. STA.{'r�' $�I��Jlt`�E kT3 VQ,T�,I7?1�,�+. >; �.. �. VOLilh1E(e1,C-FL3.:.�
j � 4834.00 1,591 0.00 0 0 0.00
1 i 4835.00 3,084 L00 2,297 2,297 0.05
4836.00 4,832 1.00 3,925 6,222 0.14
? 1 4837.00 6,7t l 1.00 5,746 i 1,967 027
� 4838.00 8,703 1.00 7,685 I9,653 0.45
` � 4839.00 1Q806 L00 9,735 29,388 0.67
} 4840.00 13,015 L00 ]1,893 41,281 0.95
11
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� TOTALVOLUME(FT3)
� ' 4841.00
' F __ _ _ _ _______ ___......_—_
" aeao.00 SWC WS LEV.4840.
�---- -- --- -----
--___._.- ---- - —
' � 4839.00
, S ____ . _.__.__._.__. ._.__. _.......___.._.—__---_—_ _ _SEO�NS-EECr46382 ..____.--...
�
4838.00
, ._....._..._.. . _..___..._._ ._._.._.__.__—.. — _._ - ____.__— —. _.__.____-- — _—.
I
. , � 4837.00
w
c�
? F 4836.00
N
i _'..._._..._. ..____. _.._.... '__.-____ - _ __—___.__ _—___._ —_____— .___- _.___.
4835.00
1 — — —_______. —_ — �__._.__._._._�_._____—._—_— _ _--__— —
� 4834.00 . _ . . .
a 4833.00
' . ..__...._ .._........__ ._..._. ..___ .__._____.. ._..
.._____—. __ _.___. -__.___—_ .'_"._
� 4832 00
0.0 0.1 02 0.3 0.4 0.5 0.6 0.7 0.8 0.9
� VOLUME(AC-FT) _ .
1
i
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Sedimentation Volume=0.48 ac-ft
; Stormwater Capture Volume=0.48 ac-ft
�
,
�
,
CARROLL LANGE,INC. 6/6/2006
i
�. Carrol� & Lange =
� �,I\ 165 South Union Blvd.,Suite 156
� `/ Lakewood,Colorado 80228
( 303/980-020o Job. No. 3075
Fax:303/980-0917
# Date O6/O6/06
� ' PROJECT St. Vrain Lakes Sheet t of 1
�� SUbjeCt Riser Pipe-Sedimentation Pond 3 By MMU
l ;
? 1 Release Water Quality Capture Volume over 40 hours
j � Dwq=Stormwater Capture Water Surface Elev.-Sedimentation Volume Water Surface Elev.
T � Dwq =4840 ft-4838.2 R= 1.80 ft
:i
Area Required per Row of Holes,A=WQCV/I(4o
Pi
i 1 Kao=0.013(Dwq)Z+0.22(DwQ)-0.10
' � Kao= 0.33812
1� WQCV= 0.48 ao-ft
� � A= 1.419614 sq-inch
Determine Hole Size and Number of Holes per Row(Figure 5-2)
u t Try:3 Columns of 13/16"Holes with 8"Riser Pipe
, (0.52 sq-inch/hole)(3 hole)= 1.56 sq-inch
� � Determine Number of Rows
-� Number of Rows=Dwq/(Minimum Row Spacing (4 inches)+Dia. Hole)
{
� � Number of Rows= "4.48785 Use 4 Rows �
T ! Use 4 Rows of 3 x 13H6" Holes wlth 8" Riser Pipe
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Sediment Basin.xls �
� SEDIMENTATION VOLUME vs. STAGE
for
SEDIMENTATION POND 4
�� � PROJECT NAME: ST.VRAIN LAKES FILING NO. 1 DATE: 61612006
i { PROJECT NO.: 3075 DESIGN BY: MMU
i} � �� ACCUM'ULA'i'ED�
INCI2�3t�1ENTAL TOTAL TOTAL
EI.EV. AREA:FI'Z) STAGE FT yb7�J' Fefl�' VOLUME(FT') VOLUME(nC•F7)
'�� 4869.00 2,957 0.00 0 0 0.00
� k 4870.00 4,406 I.00 3,657 3,657 0.08
4871.00 5,884 I.00 5,127 8,784 020
� � 4872.00 7,472 I.00 6,662 15,446 0.35
" � 4873.00 9,161 I.00 8,302 23,748 0.55
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dl
Fl
1 �
� TOTAL VOLUME(FT3)
4874.00
� �kp
� 1 ___ — _..___..___._._._ __—___ '— __—__ "__'...._
' 4873.00
T � —— —_
� 4872.00
tJ
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4871.00
.,� j � __..._'__ __'__ _ ___ '..._. _ ......"'_ _'__ "' '__
' Y � 4870 00
F .. ..__. .____—___.—____ _____
__...__ '__.._._._ __ _
* l N
4869.00
t � ___. _...._--_ _ .-_._ .._.. ....__
l 4868.00
,, � . _____ _ ..___-_-_ _.-_ _-__._ .__ ..__ -___. _
'. � 4867.00
t �
._._._ __ . -_ __--___ -_.__-_ _._...... _._.
4866.00
> > 0.0 0.1 0.1 02 02 0.3 0.3 0.4 0.4 QS 0.5 0.6 0.6
VOLUME(AC-Ff)
ii
� ' Sedimentation Volume=0.28 ac-ft
� j Stormwater Capture Volume =028 aoft
f '
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, ;
1 �
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CARROLL LANGE,INC. 6/612006
+ i
1
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�i ; �` Carroll & Lange =
165 South Union Blvd.,Suite 156
{�� \/ Lakewood,Colorado 80228
i � 303/980-0200 Job.No. 3075
Fax:303/980-0917
� Date 06/06/06
� � PROJECT St.Vrain Lakes Sheet 1 of 1
� � SUbJeCt Riser Pipe-Sedimentation Pond 4 BY MMU
[ 1
� 1 Release W ater Quality Capture Volume over 40 hours
ii
Dwq = Stormwater Capture Water Surface Elev.-Sedimentation Volume Water Surface Elev.
� � Dwq =4873 ft-4871.7 ft= 1.30 ft
ti
Area Required per Row of Holes.A=WQCV/IC4o
�i
; j ICao=0.013(Dwq)2+0.22(Dwq)-0.10
+� Kao= 0.20797
: �
1, }
` WQCV= 028 ac-ft
T � A= 1.346348 sq-inch
: t
Determine Hole Size and Number of Holes per Row(Figure 5-2)
„
� Try: 3 Columns of 13/16" Holes with 8"Riser Pipe
; ,
.,
(0.52 sq-inch/hole)(3 hole)= 1.56 sq-inch
�
, j Determine Number of Rows
. � Number of Rows= Dwq/(Minimum Row Spacing (4 inches)+Dia. Hole)
� � Number of Rows= 3.24122 Use 3 Rows
" Use 3 Rows of 3 x 13/16"Holes with 8" Riser Pipe
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Sediment Basin.xis
t�
j SEDIMENTATION VOLUME vs. STAGE
; for
SEDIMENTATION POND 5
�1 PROJECT NAME: ST. VRAIN LAKES FILING NO. 1 DATE: 6/6/2006
PROJECT NO.: 3075 DESIGN BY: MMU
� I ... . . . ACCUlYkUi.ATED�� � .
. I'I�iCR-E11�ElYTAL TO'�1`AL TU'I'A-L
� i 484�1.00 2,646 � 1�.00 l,89 3 I�(� VQL[7D�(va,GirT)..�..
.� ELEV. AR�EA.(FT) .. STA�� :�[`_ VQi,S7ME(FT ) VDLW
0 0.00
,889 0.04
4842.00 4,212 I.00 3,396 - 5,285 0.12
t i 4843.00 5,970 I.00 5,066 IQ351 024
4844.00 7,SI7 I.00 6,873 I7,224 0.40
' ' 4845.00 9,643 I.00 8,714 25,938 0.60
.�
; �
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. TOTAL VOLUME(FT3)
t 4846.00
! 1 _ . _ __ _._- -
. 3 ---- - - ---- ---
• 4845.0o SW WS EL V.4845.-- �� ----- -�--
T7
_ ____.. __-_- __-__- ____"_' _' '-'__- __ _'-' - - --
�
° ' 4844.00
.�
} _..__________..
.._- _ _ ____._..__ . __"''__- ._..__.___.. ....".____.- ....__-___..__--_
� 4 � 4843.00 SED. S ELEV. 843.1
_ l
W
(J ___.__.__' -______......._.____-- '___ __ _-_"___'_'_"__-
. , Q _-__-__.-____ _ ._'- -__-_- _'-_ '--
y 4842.00
� i
- � 4841.W
. J . . . - _ __.__ ._�� --__ _ � _ -___ -- _- . . . � .__ . _
4840.0a
}
4839.00
� 0.0 0.7 0.1 02 02 0.3 0.3 0.4 0.4 0.5 0.5 0.6 0.6 0.7 �
. - VOLUME(AFFT) -
�
f
Sedimentation Volume=0.30 ac-ft
1 Stormwater Capture Volume=0.30 ac-ft
i
�
CARROLL LANGE,fNQ ---- --- ---- —�'iib(2006- -==-
1
; \ Carroll & Lange =
165 South Union Blvd., Suite 156
�l / Lakewood,Colorado 80226
303/980-020o Job.No. 3075
Fax: 303l980-0917
� Date O6/O6l06
� ' PROJECT St. Vrain Lakes Sheet 1 of 1
�� SUbjeCt Riser Pipe-Sedimentation Pond 5 By MMU
il
r � Release Water Quality Capture Volume over 40 hours
' � Dwq=Stormwater Capture Water Surface Elev. -Sedimentation Volume Water Surface Elev.
� � Dwq =4845 ft-4843 ft= 2.00 ft
i �
Area Required per Row of Holes, A=WQCV/Kao
�l
{ j K4o=0.013(Dwq)z+ 0.22(Dwq)-0.10
!i Kao= 0.392
iJ WQCV= 0.3 aoft
„
' ' A= 0.765306 sq-inch
� f
Determine Hole Size and Number of Holes per Row(Figure 5-2)
' i
, � Try: 2 Columns of 3/4"Holes with 8"Riser Pipe
. (0.44 sq-inch/hole)(2hole)= 0.88 sq-inch
;
� ; Determine Number of Rows
� � Number of Rows= Dwq/(Minimum Row Spacing (4 inches)+Dia. Hole)
' {
Number of Rows= 5.05263 Use 5 Rows
� Use 5 Rows of 2 x 3/4" Holes with 8" Riser Pipe
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�� Sediment Basin.xls
i
� .
SEDIMENTATION VOLUME vs. STAGE
for
SEDIMENTATION POND 6
�l PROJECT NAME: ST. VRAIN LAKES FILING NO. 1 DATE: 6/6/2006
� � PROJECT NO.: 3075 DESIGN BY: MMU
��jL � ACCIJI�7LA��'I1���
� ; TiNCREMENTAL T��'3SL TOTAL
E�LEY._:.. AR��A FT�) STAGS :F3"� VQLUME(FT') VQ'[�I�lkfi'�,". ' �; � VQLUME(AC-F"1')
'+i 4837.00 1,824 0.00 0 0 0.00
� } 4838.00 3,679 L00 2,698 2,698 0.06
4839.00 5,817 1.00 4,707 7,405 0.0
S�a 4840.00 8,528 1.00 7,129 14,535 0.33
; " 4841.00 11,240 I.00 9,853 24,387 0.56
i � qgq2,00 14,066 I.00 12,627 37,014 0.85
4843.00 17,003 I.00 I 5,5 I I 52,525 12 I
T4
� 1
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TOTALVOLUME(FT3)
4844.00 -
� i
': � __'...._____ ..._.'_ _ -_ _.__.-_-_
y � 4843.00 S C S E EV.484 .0
i1 � __.._ ... _._.
; a8a2.00
. i
_._.____ _. .___ _ _ ._...._ __ _-
__. __ .. ... ....
�� 4841.00 ED. S LEV 484 .0
; F �
_.__- ____ .. . ._..._____ _ _.. __._... .__ .
�l
� 4840.00
-�t � -______ __.._.-__. ___. .__._____.- .
y -
i i 4839.00
11 -_ _
�
4838.00
. � . . _ � . . . _ . . .
; � __ . .___. __ -_ __._ .�.____ .
4837.00
7 '.
' � 4836.00
0.00 0.05 0.10 0.15 020 025 0.30 0.35 O40 0AS 0.50 0.55 O60 0.65 0]0 O75 0.80 0.85 0.90 0.95 1.00 7.05 1.70 1.15 110 125
� ! VOLUME(AGFf)
� .
iJ
iI �
1 (
Sedimentation Volume =0.61 ac-ft
� , Stormwater Capture Volume =0.61 ao-ft
. 1
� 1
1 '
1
il
CARROLL LANGE,INQ � 6/6/2006
ii
��
; \ Carroll & Lange =
165 Soutb Union Blvd., Suite 156
Lakewood,Colorado 80228
� 303/980-0200 Job. No. 3075
Fax:303/980-0917
� Date 06/06/06
�1 PROJECT SL Vrain Lakes Sheet 1 of t
�� SUbJBCt Riser Pipe-Sedimentation Pond 6 8y MMU
1
�? Release Water Quality Capture Volume over 40 hours
1 ;
Dwq = Stormwater Capture Water Surface Elev.-Sedimentation Volume Water Surface Elev.
�� Dwq =4843 ft-4841 ft= 2.00 ft
� i
Area Required per Row of Holes,A= WQCV/ICQo
1
? � Kao=0.013(Dwq)Z+0.22(DwQ)-0.10
*; 1 Kaa= 0.392
� � WQCV= 0.61 ao-ft
� � A= 1.556122 sq-inch
; �
Determine Hole Size and Number of Holes per Row(Figure 5-2)
I� Try: 3 Columns of 13/16"Holes with 8"Riser Pipe
(0.52 sq-inchlhole)(3 hole)= 1.56 sq-inch
j Determine Number of Rows
, Number of Rows= Dwq/(Minimum Row Spacing (4 inches)+Dia. Hole)
� � Number of Rows = 4.98649 Use 4 Rows
� Use 5 Rows of 3 x 13/16" Holes with 8" Riser Pipe
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Sediment Basin.xls
� SEDIMENTATION VOLUME vs.STAGE
for
� SEDIMENTATION POND 7
7 PROJECT NAME: ST.VRAIN LAKES FILWG NO. 1 DATE: 6/6/2006
' 1 PROJECT NO.: 3075 DESIGN BY: MMU
� . ACCUMULATED �
� IIYCREMENTAL TOTAL TOTAL
� ELEV. AREA{,�'I'3) . .STAGE �'T� VOLiIME(F'Ci) . VOLUME(FC') VOLUME(AGFT).
� r 4877.00 14,796 0.00 � �� 0 0 0.00
i 4878J1 16,755 1.71 27,007 � 27,007 0.62
4879.00 18,841 029 S,I03 32,110 0.74
�t 4880.00 21,055 I.00 1Q938 52,048 I.19
7 ;
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� TOTALVOLUME(FT3)
� � 4881.00
i
1.� ._..___ -.___..__- ....._.__. _.. _____ ...'_._._
" ' 4880.00 SW W EL V. 880 0
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- 4879.00
; I � S D. EL V. 78. 1
w ......_.....__. _ ____._ ____....... ____ .._._._ ._.__ ...__...
c7
____.._. _____. _ _._.._...__
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� � y 4878.00
r ,
__..__..______ . _-...__.__
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q � ..____.... __._..____ _ " - . ' _- -_ _..' ___ -
1
� � 4876.00
0.00 005 0.10 0.15 020 025 030 0.35 040 0.45 0.50 0.55 0.60 0.65 0]0 OJ5 0.80 0.85 0.90 0.95 t.00 1D5 1.10 1.75 120 725
� ! VOLUME(AC•Ff)
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Sedimentation Volume=0.62 ac-ft
� � Stormwater Capture Volume=0.62 ao-ft
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CARROLL LANCE,INC. 6/6/2006
i
�
�1 ; \ Carroll & Lange =
165 South Union Blvd.,Suite 156
f� / Lakewood,Colorado 80226
j � 303/980.0200 Job.No. 3075
Fax:303/980-0917
�+ Date 06/06/06
!
1 1 pROJECT St. Vrain Lakes Sheet 1 of 1
� t SUbjOCt Riser Pipe-Sedimentation Pond 7 By MMU
9t
', 1 Release Water Quality Capture Volume over 40 hours
� �
Dwq = Stormwater Capture W ater Surface Elev.-Sedimentation Volume W ater Surface Elev.
' l Dwq=4880 ft-4878.71 ft= 1.30 ft
i ''
t ;
Area Required per Row of Holes,A=WQCV/I(40
: 1
il
; ; Kao= 0.013(Dwq)2+022(DwQ)-0.10
i � Kao= 0.20797
i � WQCV= 0.62 ac-ft
� 1 A= 2.981199 sq-inch
. ;
Determine Hole Size and Number of Holes per Row(Figure 5-2)
.�
! Try: 3 Columns af 1 1/8"Holes with 8"Riser Pipe
i ;
„
(0.99 sq-inch/hole)(3 hole)= 2.98 sq-inch
; j Determine Number of Rows
r , Number of Rows= Dwq/(Minimum Row Spacing(4 inches)+ Dia. Hole)
'
�
� 1 ' Number of Rows= 3.12625 Use 3 Rows
° ' Use 3 Rows of 3 x 1 1/8" Holes with 6"Riser Pipe
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Sediment Basin.xls
�
� SEDIMENTATION VOLUME vs. STAGE
� for
� SEDIMENTATION POND 8
PROJECT NAME: ST. VRAIN LAKES FILING NO. 1 DATE: 6/612006
� � PROJECT NO.: 3075 DESIGN BY: MMU
� � � � A,C�UA?ULATED
� � iNCREMEIVTAL TO1'AL TOTAL
.� '� .V, qREA(FTZ).. S�'e�� '� � VOI,UME(F"T�). VOLUl1''IF' �FT') VOLUME,�(AC-F1��.,�
�Z 4859.00 2,840 0.00 0 0 0.00
i � 4860.00 3,996 L00 3,402 3,402 0.08
4861.00 5,319 I.00 4,642 8,044 0.18
t, 4862.00 6,806 L00 6,047 I4,091 032
� ' 4863.00 8,352 I.00 7,565 21,656 0.50
' � 4864.00 IQ005 I.00 9,166 30,822 OJI
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TOTAL VOWME(FT3)
r � 4865.00
iI __ _ _ _ _ - ---- ---_ _ __.
4864.��
Tl ._....._.._ .__ ___.._-_____ __. __.____.-__-_-_
"_'_...__. .._..._.. _._ - - -_- - ...
I �
' S 4863.00
,--� __-___. ...... _..__..___..___._ ._..__ __"S O�Wff CEV.- 2.3
; � � aesz.00
W ___-- ..._._ .._._."__.- - __- -_._-_ __._._.... . .._"...._.. ..__..___..-.....___.
(7
Q
y 4861.00
; l
p 4880.00
. ) . _- _- - ___ _........... �.._.___ . . _ - _ .
4859.00
F
i
4858.00
0.00 0.05 0.70 0.15 020 025 0.30 0.35 0.40 0.45 0.50 0.55 0.60 065 0.70 0.75
� VOLUME(AGFf)
i '
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Sedimentation Volume=0.36 ac-ft
� Stormwater Capture Volume=0.36 ac-ft
1
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i
CARROLL LANGE,INC. 6/6/2006
� , /�\ Carroll & Lange =.
� _I/ 165 South Union Blvd.,Suite 156 .
� Lakewood,Colorado 80228
� 303/980-0200 Job.No. 3075
Fax:303/980-0917
Date 06/06/06
i , PROJECT St.Vrain Lakes Sheet 1 of 7
� j SUbjeCt Riser Pipe-Sedimentation Pond 8 BY MMU
�� Release Water Quality Capture Volume over 40 hours
� t Dwq =Stormwater Capture Water Surface Elev.-Sedimentation Volume Water Surface Elev.
j� Dwq=4864 ft-4862.3 ft= 1.70 ft
i �
Area Required per Row of Holes,A=WQCV/Itdo
�}
� f K4o=0.013(Dwq)2+022(DwQ)-0.10
e
T j+ Kao= 0.31157
! 1
WQCV= 0.36 ac-ft
; � A= 1.155439 sq-inch
! f
l �
Determine Hole Size and Number of Holes per Row(Figure 5-2)
.�
:, � Try:3 Columns of 3/4" Holes with 8"Riser Pipe
(0.44 sq-inch/hole)(3 hole)= 1.32 sq-inch
�i
i
.; j Determine Number of Rows
-� Number of Rows= Dwq/(Minimum Row Spacing (4 inches)+Dia. Hole)
�- Number of Rows= 4.29474 Use 4 Rows
� Use 4 Rows of 3 x 3/4"Holes with 8" Riser Pipe
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: Sediment Basin.zis
� SEDIMENTATION VOLUME vs. STAGE
; for
SEDIMENTATION POND 9
PROJECT NAME: ST.VRAIN LAKES FILING NO. 1 DATE: 6/6/2006
I PROJECT NO.: 3075 DESIGN BY: MMU
� ACCUI� '�b
. INCRFM�NTAL TC��f'AsL TOTAL
-� E�.�V. �-��: . STiA�(FI' VQLUME k"I'3) VQ�„U�F,��„� - V{.�LUME{AGFT).
' 4886.00 4,286 0.00 0 0 0.00
i 4887.00 5,592 L00 4,925 4,925 0.11
4888.00 7,011 1.00 6,288 11,212 0.26
? � 4889.00 8,541 I.00 7,763 IS,976 0.44
�,' � 4890.00 10,179 L00 9,348 28,324 0.65
� 4891.00 1],918 I.00 I 1,037 39,361 0.90
4892.00 13,761 I.00 12,828 52,189 L20
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TOTAL VOLUME(FT3)
4892.50
1
I ..._..--- --.._-- ------- --- ._.-- --.._.._SWC LEV 9
j --
4891.50
t --._ ___..- ___ __._- _...___
, _ _- -___-_._-
� 4890.50
�
_..____....._._ __ .___ _.___ __.._.SED� tEVI� 885.8-_ ...._ __- __..__ ___..
� � 4889.50
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_._. ..._- - '______- _________
Q
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i 4887.50
' -__ _.__ ___ . ___._ __....__. __ - � _.___:._ ..__. �
�
4886.50
�
_....____ ______' _ _
� 4885.50
0.00 0.10 020 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20
l
' VOLUME(AC-FT)
1 -
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Sedimentation Volume=0.60 ac-ft
Stormwater Capture Volume=0.60 ao-ft
CARROLL LANGE,INC. 6/6/2006
�
i�
�f \ Carroll & Lange =
{, E'I 165 South Union Blvd ,Suite 156
�� •% 303/980.D200Iorado 80226 �ob. No. 3075
Fax:303/980-0917
� Date 06/06/O6
'� � PROJECT St.Vrain Lakes Sheet 1 of 1
L� Sub)eCt Riser Pipe-Sedimentation Pond 9 8y MMU
� i
i j Release Water Quality Capture Volume over 40 hours
� � Dwq= Stormwater Capture Water Surface Elev.-Sedimentation Volume Water Surface Elev.
� � Dwq =4892 fl-4889.8 ft= 2.20 ft
' i
Area Required per Row of Holes,A=WQCV/IC4o
T�
s ) Kao= 0.013(Dwq)2+022(DwQ)-0.10
+ � Kaa= 0.44692
i � WQCV= 0.6 ac-ft
� � A= 1.342522 sq-inch
ii
Determine Hole Size and Number of Holes per Row(Figure 5-2)
��
4 Try:3 Columns of 13/16"Holes with 8"Riser Pipe
�
(0.52 sq-inchlhole)(3 hole)= 1.56 sq-inch
� Determine Number of Rows
� Number of Rows=Dwq/(Minimum Row Spacing (4 inches) + Dia. Hole)
� � Number of Rows= 5.48514 Use 5 Rows
1 Use 5 Rows of 3 x 3/4" Holes with 8" Riser Pipe
1
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� Sediment Basin.xls
�� SEDIMENTATION VOLUME vs. STAGE
, for
SEDIMENTATION POND 10
� PROJECT NAME: ST.VRAIN LAKES FILING NO. 1 DATE: 6/6/2006
, PROJECT NO.: 3075 DESIGN BY: MMU
�i
� .'� . . � � � A�CC1MTIi.ATED � .
�� � � � INCREMENTAL TOTAL TaTAL
. E�.,�W. pZtEA(FT� S� �°� ,• . :< VULUME a VpLUIYIE(FT') VUZUM'E�{vLC=N9')�...:
'� 4898.00 3,546 0.00 0 0 0.00
�t
3 i 4899.00 4,675 1.00 4,098 4,098 0.09
4900.00 5,821 I.00 5,238 9,335 02(
�q � 4901.00 7,072 1.00 6,436 15,771 036
4902.00 8,424 1.00 7,735 23,SI0 0.54
77
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� TOTAL VOLUME(FT3) �
� .� 4902.50
��_r' _._-_._ .__....__ -______ _ _.._.._'___- .._.__ ___._.. �1N5-E-L �1449Q _____ -_'____ '
' � 4901.50
j
� 4900.50
i �
w
c� ._. .__—_ __._.___ —___.__ .
. _..__------- _.._---
..._... ___---
�
y 4899.$a
, � 4898.50 � �
' 4897.50
0.00 0.05 0.10 0.15 0.20 025 0.30 0.35 0.40 0.45 0.50 0.55
' VOLUME(AC-Ff)
1 -
1
Sedimentation Volume=0.27 ac-ft
� Stormwater Capture Volume =0.27 acft
!
i
CARROLL LANGE,INC. 6/6/2006
1
; \ Carroll & Lange =
� 165 South Union Blvd.,Suite 156
� Lakewood,Colorado 80228
303/980-020o Job. No. 3075
Fax:303/980-0917
�� Date 06/06/06
� PROJECT St.Vrain Lakes Sheet 1 of 1
�� Subject Riser Pipe-Sedimentation Pond 10 By MMU
sf
� ? Release Water Quality Capture Volume over 40 hours
i �
u � Dwq= Stormwater Capture Water Surface Elev.-Sedimentation Volume Water Surface Elev.
T � Dwq=4902 ft-4900.4 ft= 1.60 ft
a
Area Required per Row of Holes,A=WQCV/Kdo
� �
? � ICao= 0.013(Dwq)Z+022(Dw9)-0.10
'E Kao= 0.28528
i r WQCV= 0.27 ao-ft
� � A= 0.946439 sq-inch
;
: 1
Determine Hole Size and Number of Holes per Row(Figure 5-2)
, �
k Try: 2 Columns of 13/16"Holes with 8"Riser Pipe
t (0.52 sq-inch/hole)(2 hole)= 1.04 sq-inch
_f Determine Number of Rows
} Number of Rows= Dwq/(Minimum Row Spacing (4 inches)+Dia. Hole)
� Number of Rows= 3.9892 Use 4 Rows
! Use 4 Rows of 2 x 13/16" Holes with S" Riser Pipe
{
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Sediment Basin.xls
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' APPENDIX B - Standard Forrns
,
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" ' STORMWATER MANAGEMENT PLAN
�� ACTIVITY LOG
� Dafe Descrf ffon ofAcffvl
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� STORMWATER MANkGEMENT PLAN
�� ACTIVITY LOG
f ) pate Uescri tlon ofActfvif.
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� ACTI�/ITY LOG
,� Dafe Descr! tlon of Actfvl
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(4)ProJectName:
� STORMWATER MANAGEMENT PLAN
� F1ELD REVIEW REPORT
��
(1)Date of ProJect Revlew: (5)Reason(s)for Revfew:
� 1 ❑ Required 7 Calendar Day Review for Active Sites
� (2)ProJect Contractor. ❑ Required Runoft Event Review for Active Sites
❑ Required 30 Calendar Day Review for Completed Projects
1} (3) Stormwater Management Plan Administrator: ❑ Complaint:
� y ❑ Other.
B CONSTRUCTION&REASSE6SMENT
a� (a) Is the consWcfion site perimeter crontained?(Y/N) (d)Are areas used for material and waste storage and fueling contained?(Y/N I NA)
1 y (b) Is offsite tracking minimized?(Y f N) (e)Estimate of disturbed area at the time of the Review?_Acres
c Are disturbed areas contained9 Y/N
; i BESTMANAGEMENTPRACTICES BMPS .
11 �9� (10) (�1 ) (1z) (13) (�4)
BMP BMPs Status Reason for BMP Malntenance BMP Action Hem(s) Compliance
Description/ ChangeslAddition Required �atefor
;) LocaBon (All n�N) Aetion(s)
� j BMPs are to be
reviewedeachtime) p�p�an� Newto
��n9 PIW
c � Neetled
` j �M) IN
� EROSION & SEOIMENi CONiROL
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PAGE 1 OF 3
MODIFIEO CDOT FORM p 1176
�
� � 9 ) O
BMP BMP�Statue (11) (12) (13 14
DeecdpUon! Reason for BMP Malntenance 8MP Acdon ttem(s) Compllance
LoC8HOn � P��P�� N"'�° ChangealAddidon Requlred Datefor
Ed�tlnA PIW
�� (YIN) �Mal � (YIN) AcNon(s)
3
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PAGE 2 OF 3
' MO�IFIED CDOT FORM#117fi
�t
(9) (��) (��) (12) (13) (14)
�� BMP BMPe Stetua
Cl Descriptlon I Reaeon for BMP Mal�kenance BMP Actlon kem(s) Compllance
Locatlon P�P�� N"��° ChangesIAddRlon Requlred Datekr
F�clrtlnp PIuJ
�� : lYl�l Needee (yM) Actlon(s)
(YM)
MATERIALS HANULING,SPILL PREVEN710N WASTE MANAGEMENT AND GENER4L POLLUTION PREVENTION
�i Stockpile
f Management
i
Matenals
Management
�� , Spill Prevention
and Control
� � , Concrete Waste
i
Solid Waste
� Sanitary and
Septic Waste
�� : Vehicle and
Equipment
Management
4 �
i � Street Sweeping
Vacu�ming
�� Wind Erosion
i
Confrol
Other.
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CERTIFICATION: I certi thls Stormwater Mana ement Plan Field Review Report is com lete and accurate.
SWMP Administrator(Signature Required): Date:
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PAGE 3 OF 3
� MODIFIE�CDOT FOftM q 1176
� ; Calorado Depattment of Public Health Bc Environment FOR AGENCY USE ONLY
� Water Quality Cantrol Division
WQCD-P-B2 ��
4300 Cherry Creek Drive Soufh EFF
�� Denver, Colorado 80246-1530 YEAR MONTH DAY
INACTNATION NOTICE FOR
� CONSTRUCTION STORMWATER DISCHARGE GENERAL PERMTT CERTIFICATION
� ` Please orint or tvoe Form must be filled out completely
q� Certification Number: COR-03____ Ta�cpayer ID or EIN________
� ;
Permittee(Company)Name:
1 ?
� j Permittee Address:
�� Phone No. ( )
� �
Site/Facility Name:
�?
j f Conslruction Site Address/L,ocafion:
il
; � County: Contact Person:
s � `Surnmary of Vtork perfoaned and descriptian of final site stabilization:
� 1
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I certify under penalty of law that by the date of my signature below,all disturbed soils at the idenfified construction site
�l have been finally stabilized;all temporary erosion and sediment contro]measures have been removed;all conshucfion
' � and equipment maintenance wastes have been disposed of properly;and all elements of the StormwaterManagement
Plan have been completed.
j !
' I understand ihat by submitting this notice of inactivafion,I am no longer authorized to dischuge stortnwater associated
j } with conshuctaion activiry by the general pemut. I understand that discharging pollutants in stomtwater associated with
construcGon activifies to the waters of the State of Colotado,whete such dischazges are not authorized by a CDPS
j � pecmit, is unlawful under the Colorado Water Qualiry Con4ol Act and the Clean Water Act.
1 ) -
I certify under penalty of law that I have personally exanrined and am familiaz with the informa6on submitted herein, and
> ≥ based on my inquiry of those individuals immediately responsible for obtaining the information,I believe that the
� � information is true, accurate and complete. I am aware that there aze significant penaities for submitting false
information, including the possibility of fine and imprisonment. (See 18 U.S.C 1001 and 33 U.S.C. 1319.)
( ?
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Signature of Permit Applicant(Legally Responsible Party) Date Signed
� � Name(printed) Title
I � 9N7/cn/in
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Colorado Department of Public Health&Environment
" Watar Quelity Control Division R�
� WQCD P B2
4300 Cherty Creek Drive South gff
Denver, Colorado 80246-1530 Yeaz Month Day
�� NOTICE OF TRANSFN�i AND ACCEPTANCE OF TERIMS OF A
STORMWATER DISCHARGE GENERAL PERIl4IT CERTIFICATION
�I 1) To be completed by the NEW permittee:
I hereby accept transfer of this Colorado Dischazge Permit Gertificafion No. CO_______, Which was
T1 issued to I have reviewed the terms and conditions of this permit and the Stormwater
� } Management Plan and accept full responsibility, coverage and liability. This transfer will be effec6ve on:
� f The facility slte is tocated ah
i � Street Address
City, State and Zip Code
ii
� y County Name of facility or development
1
The NEW pecmittee is:
f� Company Name
3 � Mailing Address
' City, State and Zip Code
r ; Phone No. Fed. Ta�cpayer(or Employer)ID No._
--------
Local Coutact (familiar with:faci]ity)
' � Title � � Phone Number
' � I cettify under penalty of law that I have personally examined and azn familiaz with the information submitted herein, and
based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that the
� information is hue, accurate and com lete. I am aware that there aze si
P �cant penatties for submitting false information,
._ } including the�possibility offiue and�imprisonment.
jSignature of Peimit Applicant(Legally Responsible Party) Date Signed
� Name (printed) Tifle
I
2)To be completed by the Previous permittee:
t
� As previous permittee, I heteby agree to ihe transfer of the above referenced pertnit and certification and all responsibilities
thereof.
; Nazne
� Mailing Address
� C'tty, State end Zip Code
� Phone No. Fed. Talcpayer(or Employer)ID No._________
�
j Signatute of Pemut Applicant(Legally Responsible Pazty) Date Signed
,
� Name (printed) ntie
9/9�/trans
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, . APPENDIX C — Additional BMP Measures
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� Stt�e�±t Sweep��� �n�' 1��cuu�rn��g ��-�
�� — ob�ectfvea
. EC Eroslon Control
�� SE SedlmentControl �
TG Tracking Control ✓
WE Wind ErosiortControb
�� NS NonStortnwater
Manegemenf Confrof
� Wesfe Manegement and
� � Materials PolNdbn Conhroh
'�! Legend: � .
� f � ✓ PHmary Ob)ective � �
� Secondery Objective
� �
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� 1 Targeted Constituents
Description and Purpose sediment ✓
� � Street sweeping and vacuuming ineludes use of self-propelled Nutnents
'� � and walk-behind equipment to remove sediment from streets Trash ✓
and roadways, and to clean paved surfaces in.preparation for Metals
1� final paving. Sweeping and vacuuming.prevents sediment from gacteria
the project site from entering storin drains or receiving waters.
Oil and Grease ✓
, � Suitable Applications organics
' � Sweeping and vacuuming are suitable anywhere sediment is
` tracked from the project site onto public or private paved potential Alternatives
streets and roads,typically at points of egress. Sweeping and
� ' vacuuming are also applicable during preparation of paved None
i } surfaces for final paving.. .
, , Limitations
' Sweeping and vacuuming may not be effective when sediment
I� � is wet or when tracked soil is caked(caked soil may need to be
scraped loose).
.i Implementatfon .
■ Controlling the number of points where vehides can leave
1 the site will allow sweeping and vacuuming efforts to be
,j focused, and perhaps save money.
� ■ Inspect potenHal sediment tracking locations da'tly,
� ■ Visible sediment tracking should be swept or vacuumed on a �� � �
daily basis. INornle
_� StoQ a� r
� RssoNaHon
� � January 2003 Callfornla Stormwetar BMP Handbook 1 of 2
Construcklon
,
www,ca bmphandbooks.rnm
i
�-1
� Ul�a�er �o�se��t��r:� �'ra���iEes ��`��
-
� Objectives
EC Eroslon Control ✓
$E Sediment Control �
�� T6 TrackingContro4
j WE Wind Eraslon ConUol
NS NonStormwater �
� Management Control
a� � Waste Management artd
Materials Pollution Canfrd
�� - � Legend:
j ✓ Primery Objective
J Secondary Obfective
r
��
1 �a Targeted Constituents
" Description and Purpose Sediment ✓
I� Water conservarion practices are activities that use water Nutrients
� j during the construction of a project in a manner that avoids Trash
causing erosion and the transport of pollutants offsite. These Metals
r� practices can reduce or eluninate non-stormwater discharges.
Bacteria
�� Suftable Applications OilandGrease
r Water conservation pracrices are suitable for all wnstruction Organics
� sites where water is used, including piped water,metered
i r -water, trucked water, and water from a reservoir. potential Alternatives
-� Limitations None
i� . ■ None identified. .
r � Implementatfon
■ Keep water equipment in good working condition.
: i
■ Stabilize water truck filling area.
. ,
F ■ Repair water leaks prompfly.
il
■ Washing of vehicles and equipment on the construction site
il is discouraged.
ti
■ Avoid using water to clean construction areas. If water
� � must be used for deaning or surface preparation,surface
j should be awept and vacuwned first to remove dirt. This will ��� �
minimize amount of water required. �
tnlrcomle
1 Smrmwater
.J �- Ouellty
AssoNatlon
�� � �January 2003 CaIlfoMla Stormwater BMP Handbook 1 of 2
Constructlon
. www.wbmphandbooks.rnm
I
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�
� �avir� , �r����in� �pe�at�a�s� ���3
� ��d�
�� ' 06JeeEive.s
I EE. Eroslon Conirof
�� 3@ SedimentControl
� T8 Trecldng:ControF
WE Wind Erosion Contro6
� } NS NonStormwater �
} Menagement Conirof
� WasteMenagementand �
Materiafs Pdlution Contrd
� � . Legend: . . . .
✓ Primary Objecti�e
. t Secondary Objective
��
f�
� �
j � Targeted Constltuents
Description and Purpose ✓
', � Prevent or reduce the discharge of pollutants from paving Sediment
; } operations,using measures to prevent runon and runoff NuMents
pollution,properly disposing of wastes,and training employees Trash
and subcontractors. Metals
A � Bacteria
SUitable Applicatfons OilandGrease ,/
These procedures are implemented where paving, surfacing, Organics
' � resurfacin or sawcuttin ma
g� g, y pollute stormwater runoff or
, ) discharge to the storm drain system or watercourses.
Potentiai Alternatives
�. Limitations None
� ■ Finer solids aze not effecGvely remoyed by filtration
systems.
■ Paving opportunifies may be limited during wet weather.
Irnpiementatfon
General
j ■ Avoid paving during the wet season when feasible. '
, ■ Reschedule paving and grinding activities if rain is in the
Jforecast.
■ 1Y�ain employees and sub-contractors in pollution
Jprevention and reducHon.
■ Store materials away from drainage courses to prevent � � ��,�
� stormwater runon(see WM-i,Material Delivery and Storage). ���+
� Stormwater
Dualfq�
Assoaarlon
, January 2003 CaIlPomla Stormweter BMP Handbook 1 of 4
Constructlon �
www.cabmphand books,com
�
� I��'�� ����� a�� �r����� Q� ecat�a�r�s
� ' � �
� TTtiermoplastfe Striping
■ Thermoplastic striper and pre-heater equipment shutoff valves should be inspected to
�� ensure that they are working properly to prevent leaking thermoplasric from enter�ng drain
inlets, the stormwatea drainage system,or watercourses.
■ Pre-heaters should be filled caretully to preven4 splashing on spilling of hot thermoplastic.
11 Leave six inches of space at tl�e top of tAe pre-heater container when filling therinoplasric to
� j allow mom for maferial to move when the vehicle is deadheaded.
� � ■ Do not pre-heat,tcansfer, or toad tliermoglastic neardiain inlets or watercourses.
� ` ■ Clean trucl¢beds dailq of loose debris and melted tfiermoplasric. When possible;recycle
thermoplastic materiat.
T�
i � Raised/RecessedPavementMarkerApp[icarionandRemova(
■ Do not iransfer or load bituminous material near drain inlets,the stormwater drainage
T � system,or watercourses.
` ■ Melting tanks should be loaded with care and not filled to beyond six inches from the top to
� � leave room for splashing when vehicle is deadheaded.
, � ■ When servicing or filling melting tanks,ensure all pressure is released before removing lids
to=.avoid spills.
_6 �
` � ■ On large-scale projects,use mechanical or manual methods to collect excess bituminous
material from the roadway after removal of markers.
`� Costs;.. .. , .
i i ■ All'�f'the above are low wst measures.
� � Inspection and Maintenance
� � ■ Inspect and verifythat activity-based BMPs arQ in place prior to thecoinmencement of
associated activities. While acUvities associated with the BMP are under way, inspect weekly
, i during the rainy season and at rivo-week intervals in the non-raiuy season to verify
continued BMP implementation.
i ;
■ Reep ample supplies of drip pans or absorbent materials onsite.
. 7
i � � Inspect and maintain machinery regularly to minimize leaks and drips.
, References
� � Blueprint for a Clean Bay: Best Management Practices to Prevent Stormwater Pollution from
Construction Related Activiries;Santa Clara Valley 1Vonpoint Source Pollution Control Program,
1995�
( 1
� ; Hot Mix Asphalt-Paving Handbook AC igo/53'7o-i4,Appendix I, U.S.Army Corps of Engineers,
July 1991.
� � Stormwater Quality Handbooks-Construction Site Best Management Practices(BMPs)Manual,
� State of California Deparhnent of TransportaHon(Caltrans),November z000.
I l 4 of�4 Califomfa Stormweter BMP Handbook ]anuary 2003
�-�� Construdlon
' .
www.cabmphandbooks.com .
I
l ,
�
� ������@• ��l� �E�����E����� ���i����� ��-�
�
;
�� ; O6,�eEttves
E6 Erosion Control
�� SE Sedlment Controf
j TE TredcingControl
vEHICLe WE �nd Erosion Controf
WASH
�� AREa Ng Non•Stormwater �
� Menagement Control
Waste Management and
� MateFiels Poflution Controf
� [ . Leyendt � . .
1 � ✓, Primary Ob�eetfve
✓ Secondary OBjective
1�
Sump
�
'j ` Targeted Constituents
Description and Purpose sediment �
' � , .;�Uehicle and equipment cleaning procedures and pracfices
� Nutrients �/
� 1 •eliininate or reduce the dischazge of pollutants to stormwater Trash
from vehicle and equipment cleaning operations. Procedures
� 1 and practices inciude but are not limited to:using offsite Metals
� � #acilities;washing in designated, contained areas only; eacteria
eliminaring discharges to the storm drain by infiltrating the Oil and Grease ./
, t .wash water; and training employees and subcontractors in Organlcs ./
J ,,:;._prqpercleaningprocedures.
Suitable Applications Potenkial Aiternatives
� ! These procedures are suitable on all construction sites where None
;I velucle and equipm�nt cleaning is.performed. . .
� � Limitatfons
I � Even phosphate-free,biodegradable soaps have been shown to
be toxic to fish before the soap degrades. Sending
, vehicles/equipment offsite should be done in conjunction with
� TC-i, Stabilized Construction Entrance/Exit.
� -
Implementatton
1 Other options to washing equipment onsite include contracting
,J with either an offsite or mobffe commercial washing business. -
Theae businesses may be better equipped to handle and dispose
� of the ivash waters pmperly. Performing this work offsite can
� also be economical by eliminating the need for a separate washing
operation onsite. � ��
� If washing operations are to take place onsite, then: G�►Iromia
J � Stormweter
Guallty
AdfOCiAf�OR
�
_� ]anuary 200d Callfornla StortnWater BMP Handbook - 1 of 3
Consttuctlon
, � � www�.cabmphandbooks.com �
1
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'
� �'��1f��8' r'��� ��Lf��l17'��'r�1$ ;��`B�.�E�t,� ...:. . '..��'�
,
�� Inapee�ion and Malntenanee
r Inepeet and verify that activity-based BMPs are in place prior to the commencement of
associated activities. While activities associated with the BMP are under way,inspect weekly
�} during the rainy season and at two-week intervals in the non-rainy season to verify
conrinued BMP implemen�arion.
�� r Inspect BMPs subject to non-stormwater discharges daily while non-stormwaYer dlscharges
oecur.
�� r Inspection and maintenarice�s tninimai,althbugh sorne berm repair may be necessary.
� ■ Monitor employees and subcontracYors througfiout the duration of the construction project
� to ensure appropriate practices are being implemented.
t� ■ Inspect sump regularly and remove liquids and sediment as needed.
T� s Prohibit employees and subcontractors from washing personal vehicles and equipment on
�� the construcrion site.
References
T
! Stormwater Quality Handbooks-Construction Site Best Management Pracrices (BMPs)Manual,
i State nf California Deparhnent of Transportation(Caltrans),November z000.
r} '''Swisher, R.D. Surfactant Biodegradation, Marcel Decker Corporation, i98'7.
¢ �
��
� l
� j
il .
* �
t �
� i
� ,
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1 ,
1
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11
l! ]anuary 2003 Eellfornia Starmwater BMP Handbook 3of 3
� Construdion
www.ca bm pha n dbooks,com
I
U
J�l
� � I�'""�' �e��E'i�@ ���. :�."�QE����'�Q'��' �r"�IE�'J�`��.E,�
�� ■ Absorbent spill cleanup materials and spilt kits should be available in fueling areas and on
fueling trucks, and should l�e disposed of proper•ly after use:
�j ■ Drip pans or absorbent pads should be used during vehicle and equipment fueling, unless
) the fueling is performed over an imper[neable surFace in a dedicated fueling area.
■ Use absorbent materials on small spills. Do not hose down or bury the spill. Remove the
� � adsorbent materials promptly and dispose of proper]y.
r ■ Auoid mobile fueling of m.obile construetion equipment around the site;rat$er, tcansport the
� f equipment to designated fueling areas. With the e�cception of tracked equipment such as
1 j bulldozers and lazge excavators,most vehicles sHould be able to travel to a designated area
with litfle lost rime.
ri
� f ■ Train employees and subcontractors in proper fueling and cleanup procedures.
■ When fueling must take place onsite, designate an area away from drainage courses to be
�) used. Fueling areas should be identified in the SWPPP.
it
■ Dedicated fueling areas should be protected from stormwater runon and runoff, and should
. i be located at least So ft away from downstream drainage facilities and watercourses. Fueling
' � must be performed on level-grade areas.
� i
��
■ Profect fueling areas with berms and dikes to prevent runon, runoff, and to contain spills.
, � ■ Nozzles used in vehicle and equipment fueling should be equipped with an automatic shutoff
to control drips. Fl�eling operarions should not be left unattended.
�,
i ■ Use yapor recovery nozzles to help control drips as well as air pollurion whete required by
� Air Quality Management Districts (AQMD).
'? ■ Federal,state, and local requirements should be observed for any stationary above ground
) storage tanks.
� Costs
; ■ Al]of the above measures are low cost eucept for the capital costs of above ground tanks that
' meet all local environmental,zoning,and fire codes.
' Inspection and Maintenance
_� ■ Vehicles and equipment should be inspected each day of use for leaks. Leaks should be
repaired immediately or problem vehicles or equipment should be removed from the project
� site.
� ■ Keep ample supplies of spill cleanup materials onsite.
� ■ Immediately clean up spills and properly dispose of contaminated soil and cleanup
� materials.
_j
I 2 of 3 Callfornla Stormwater 9MP Hand600k ]anuary 2003
� , � . constructlon
www.cabmphandbooks..com
;
�
� _V`�h�i��� � E�u��r��t�.��;�a����na���e� , l��-���
�} � Obiectives
; EG Erosion Conhul
�� ' SE' Sedimenf Controd
� TE Tvacking ConWF
WE Wind Erosion Confrol
1 N3 Non-3tormwater �
Management Con W f
k P �a�° � WasteMan�qementand
Matetials Pollution Confrol
��� Legeodo- - � '
� ✓ P�Imary Objeetive
✓ Secondary ObJecttve
��
�
��
7!
I
` Targeted Constituents
Description and Purpose
,, Sedimenl
� Prevent or reduce the contamination of stormwater resulting Nutrients ✓
; � from vehicle and equipment maintenance by running a"dry Trash ✓
and clean site". The best oprion would be to perform
`� maintenance activifies at an offsite facility. If this oprion is not Metals
i � available then work should be performed in designated areas Bacteria
only,wkile providing cover for materials stored outside, Oil and Grease ✓
, � checldng for leaks and spills,and containing and cleaning up Organlcs ✓
spills immediately. Employees and subcontractors must be
� � trained in proper procedures,
Potential Alternatives
^. Suitable Applications None
; ; These procedures are suitable on all construcrion projects _ �
where an onsite yard area is necessary for storage and
� � maintenance of heavy equipment and vehicles.
, �
� J Limitations
Onsite vehicle and equipment maintenance should only he used
� where it is impractical to send vehicles and equipment offsite -
� for maintenance and repair: Sending vehicles/equipment
offsite should be done in conjunction with TC-i,Stabilized
? Construction Entrance/Exit.
i
J
Outdoor vehicle or equipment maintenance is a potenrially
� significant source of stormwater pollution. Activities that can
contaminate stormwater include engine repair and service,
changing or replacement of fluids,and outdoor equipment storage � � �
and parldng(engine fluid leaks). For further information on G��tn�a
� velucle or equipment servicing,see NS-8,Vehicle and Equipment stormwater
_� Cleaning, and NS-9,Vehicle and Equipment Fueling. oueney
� AssoNatlon
,
� January 2003� Californla Stortnweter BMP Handbook 1 of 4
Construdlori
,
www.ca bmp ha nd hooks.com
J
�
� �e��Ere 8�.��������� ,���i�t������ =��-��
�� Listed below is further informatlon if you must perform vehicfe.or equi�ment maintenance
onsite.
�� St{ferAlternutive ProduGts
■ Consider products that are less toxic or hazardous than regular products. These products
are often sold under an"environmentally friendIy"label.
� � ■ Consider use of grease substitutes for lubrication of truck fifth-wheels. Follow
manufacturers label for details on specific uses.
�j ■ Consider use of plastic fricrion plates on trueTe fifth-wfieels in lieu of grease. Follow
manufacturers label for detaiLs on specifie uses.
�1 Waste ReductQon
J Parts are often cleaned using solvents such as trichloroethylene,trichlotoethane,or methylene
chloride. Many of these cleaners aze listed in California Torric Rule as prioritypollutants. These
f 1 materials aze harmful and must not contaminate stormwater. They must be disposed of as a
�� hazardous waste. Reducing the number of solvents makes recycllng easier and reduces
hazardous.waste management costs. Often,one solvent can perform a job as well as two
. � different solvents. Also,if possible,eliminate or reduce the amount of hazardous materials and
waste by substituting non-hazardous or less hazardous materials. For example, replace
� `chlorinated organicsolvents with non-chlorinated solvents, `Non-chlorinated solvents like
=kerosene or mineral spirits are less toxic and less expensive to dispose'of properly. Check the
` � list of acrive ingredients to see whether it contains chlorinated solvents. The"chlor"term
:indicates that the solvent is chlorinated. Also,try substituting a wire brush for soh�ents to clean
., parts.
2
1 I .Recycling and Disposal
Separating wastes allows for easier recycling and may reduce disposal costs. Keep hazardous
wastes separate,do not mix used oil solvents,and keep chlorinated solvents (like,-
� trichloroethane)separate from non-chlorinated solvents(like kerosene and mineral spirits).
� . Pcomptly transfer used fluids to the proper waste or recycling drums. Don't leave full drip pans
or other open containers lying around. Provide cover and secondary containment until these
1 materials can be removed from the site.
�
� Oil fitters can be recycled. Ask your oil supplier or recycler about recycling oil filters.
i Do not dispose of extra paints and coatings by dumping liquid onto the ground or throwing it
into dumpsters. Allow coatings to dryor harden before disposal into covered dumpsters.
? Store cracked batteries in a non-leaking sewndary container. Do ttus with all cracked batteries,
� even if you think all the acid has drained out. If you drop a battery,treat it as if it is cracked.
Put it into the containment area until you are sure it is not leaking.
� Costs
C All of the above are low wst measures. Higher costs are incurred to setup and maintain onsite
maintenance areas.
I
1
� ]anuary 2003 CaliPomla Stortnwater BMP Handbook 3 of 4
i
� Construdlon �
www,ca�bm p ha ndbooks.co m
�
� �ar�C�'�'��:�:�t'��t,�.
�.� ��
_ � ...:._ . . -. .
�� ; Qb,�eetives
EC Erosion Contro4
r SE Sediment ControV
�� TC Trecking Control
WE Wind froslon Controt
' Ng 'Non-Storthwater �
�� ; i Management Controt
� � WasteManegementand �
�
Materfals Pollutiai Contrnl �
T� i Legend: - .
j � �� Primary Objective
✓ Sgeondary Objectfve
��
�� Targeted Constituents
Description and Purpose Sediment ✓
? � Concrete curing is used in the construcrion of structures such as Nutriems
� bcidges, retaining walls,pump houses,large slabs,and Trash
.:structuted foundations. Concrete curing includes the use of Metals ✓
� `both chemical and water methods. Discharges of stormwater
and non-stormwater exposed to concrete during curing may Bacteria
s shave a high pH and may contain chemicals,metals,and fines. Oil and Grease ✓
-�-.,
Proper procedures reduce or eliminate the contaminaUon of Orga�ics
' � stormwater runoff during concrete curing.
t � Potentlal Alternatiyes
Suitabie Appiications
r� Suitable applications include all projects where PorHand None
� � Cement Concrete(PCC)and concrete curing chemicals are
placed where they can be exposed to rainfall,runoff from other
{ 1
areas,or where runoff from the PCC will leave the site.
r i Limitat(ons
None idenfified. _
r ;
�j Implementation
Chemical Curittg
tI ; ■ Avoid over spray of curing compounds.
t ■ Minimize the drift of chemical cure as much as possible by
applying the curing compound close to the concrete surface.
I � Apply an amount of compound that covers the surface,but does
� not allow any runoff of the compound. � � ,�
��
1 ■ Use ro er stora e and handlin techni ues for concrete curin Gallfomla
, P P B S 4 8 stormwater
J compounds. Refer to WM-i,Material Delivery and Storage. auancy
� ' ASiOcIAffOf1
I � )anuary 2003 Califomla Stormwater BMP Handbook � � � 1 of 2
� Construction
. www.wbmphand books.rnm
I '
� i
�{
� �a������ -���������� ��.����
—�—�,�,_�, � �,�
�� , Objecttves
EC Eroslon Gontrol
� SE Sediment CootroV
TC Trecking Control
W8 Wind Erosion Controf
Non-Stomiwater
�1 NS Manegement Coniroi '�
� �, Weste Manegertrent and �
MateiialsPdltitlon ConWl
��� � Legend:
✓ Rrlmary O6ieetive�
✓ Secondary Objective
11
�� Targeted Constituents
Description and Purpose Sediment ✓
�� xG�ncrete finishing methods are used for bridge deck Nutdents
i � .rehabilitation,paint removal,curing compound removal, and
.:final surface finish appearances. Methods include sand Trash
f� blasting,shot blasting,grinding,or high pressure water Metals ./
+blasting. Stormwater and non-stormwater exposed to concrete Becteria
i .finishing by-products may have a high pH and may contain Ofl and Grease
,� chemicals,metals, and fines. Proper procedures and Organics ✓
j ,e: .implementation of appropriate BMPs can minimize the impact
i } that concrete-finishing methods may have on stormwater and
Potential Alternatives
non-stormwater dischazges.
� j Suitable Applications None
These procedures apply to all construction locations where
� 2 concrete finishing operations are performed.
� � Limitations
None identifled.
�1 Implementation -
■ Collect and properly dispose of water from high-pressure
� ? water blasting operations.
� ■ Collect contaminated water from blasting operations at the
top of slopes. Transport or dispose of contaminated water
� ) while using BMPs such as those for erosion control. Refer to
EC-9,Earth Dikes and Drainage Swales, EC-1o,Velocity � � ��
( Dissipation Devices, and EGu,Slope Drains. nwm�a
I � Stortntyater
� Guall(y
Aesoclatlon �
L.,
� lanuary�2003 California Stortnwater BMP Handbook S of 2
Constructlon �
� w w w.ca b m p h a n d b oo ks.to m
� !
� i
�
.
� ����c�'��;���i.��;�� :��e��� ��
� ; Objectives
EC ErogionContm4
S� SedimentControP
�� TC Trecking ControV
WE Wfnd Eroslon 6ontrof
; Non-SWmiweter
j� NS Management Controk
i � WasteManagementand
�' Matedels polfadon Control '�
�� ; ,Le9end: . � . .
� ✓ Primary Ob)ective�
✓ Secondary Ohfective�
� 1
; j Targeted Constituents
Descript(on and Purpose
'Erevent,ceduce,or eliminate the discharge of pollutants from Sediment ✓
,i •`'m�terial delivery and storage to the stormwater system or Nutrients ✓
` ! �watercourses by minimizing the storage of hazardous materials Trash ✓
r� : onsite,storing materials in a designated area,insfalling Mehals ✓
; secondary containment, conducting regular iaspections, and Bactena
i I training employees and subcontractors. Oil and Grease ✓
This best management pracrice covers only material delivery Organics ✓
� ai�d.storage. For other information on materials,see WM•2,
Tvtaterial Use,or WM-4,Spill Prevention and Control. For potential Alternatives
�y information on wastes,see the waste management BMPs in this None
; G section.
ll _ . .
Suitable ApPlications
� ) These procedures are suitable for use at all wnstruction sites
; f with delivery and storage of the following materials:
I � . ■ - Soil stabilizers and binders
li ■ Pesticides and herbicides �
� � ■ Fertilizers
`J ■ Detergents
' 1 ■ Plaster
J ■ Petroleum products such as fuel,oil,and grease � ��
Gllfomla
' � ■ Asphalt and concrete components �Q a��
Auoclatlon
l ��r
: � )anuary 2003 CaIlPomla Stormweter BMP Handbook 1 of 5
- Canstrudion
w w w.w b mp h a n d boo ks.co m
1
��-1
� l�a�e�r��� ������r� a��� ����a�� _ �1�-�
���
� ■ I€drums.mnst tse kep�uncovered',store them at a slight angle 4o reduce ponding of rainwater
on the lids to reduce corrosio�. Domed plastie covers are inexpensive and snap to the top.of
�-� drums,preventing.water from eollecting.
i 1 s Chemicals shouCd be kept in their original labeled containers,
� 1 ■ Employees and subcontractors should be trained on the proper material delivery and stor.age
i i practices.
■ EmpfQyees tcained in emergency spill cleanup procedures must be present when dangerous
� materials or 1'tquid chemieals are unloaded.
i;
■ If signiflcant residual materlals remain on tlie ground after construction is complete,
` ! properly remove materials and any contaminated soil. See WM-�, Contaminated Soil
j Management. If the area is to be paved,pave as soon as materials are removed to stabilize
the soiL
� Material Storage Areas and Practices
■ Liquids,petroleum products, and substances listed in 4o CERParts uo, u�, or 3oz should
be stored isapproved containers and drums and should not be overfiiled. Containers and
t drums should be placed in temporary containment facilities for storage.
t
■ Atemporary containment facility should provide for a spill containment volume able to
� contain precipitation from a 25 year storm event, plus the greater of Yo%of the aggregate
fvolutne of all'containers or i00% of the capacity of the largest container within its boundary,
whichever is greater.
! ■ A temporarycontainment facility should be impervious to the materials stored therein for a
j minimum wntact time of�2 hours.
� ■ A temporary containment facility should be maintained free of accumulated rainwater and
spills. In the event of spills or leaks,accumulated rainwater and spills should be collected
1 and placed into drums. These Gquids shot�ld be handled as a hazardous waste unless testing
determines them to be non-hazardous. All eoilected liquids or non-hazardous liquids should
� be sent to an approved disposal site.
� -
,
■ Sufficient separation should be provided between stored containers to allow for spill cleanup
� and emergency response access.
� ■ Incompatible materials,such as chlorine and ammonia,should nof be stored inthe same
�
temporary containment facility.
) ■ Throughout the rainy season, each temporary containment facility should be covered during
non-working days,prior to,and during rain events.
� ■ Materials should be stored in their original containers and the original product labels should
� be maintained in place in a legible condition. Damaged or otherwiae illegible labels should
� be replaced immediately.
�
,
�� January 2003 Callkmla Storinwater 8MP Handbook � 3 of 5
Constructlon
www.ca bm ph a ndbooks.eo m
;
N
� ,
� �a€e��a,�. De[��ce�c a��' Sta�a�� . ; �N�-�
�� Referenees
Btueprint for a Ctean.Bay:.Sest Managemeut Practices to Prevent Stormwater Eollution from
� Construetion Related Activities; SanYa Ckar�ValIey Nonpoint Source Follution Control Program,
� i995•
Coastal Nonpoint FolluHon Control Program: Program DeveIopment and Approval Guidance,
� � Woridng Group Worldng Paper; US'EPA,ApriI fgg2.
1
Stormwater Quality Hand600ks-Construction Site Best Management Practices($IvIPe)Manual,
�� State of California Department of TransporEation(Caltrans),November 2ocao.
` Stormwater Management for Cotastruction Aetivities;Developing PolIutian Prevenfiob P,lans
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and Best Management Practice,EPA 832-R-gzoo6; USEPA,Agril i992:
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jJanuary 2003 Callfomla Storrnwater 9MP Handbook 5 of 5 �
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� Elrni�a�Porc� � � �
Safer alternative building and construction produets may not be available or suitable in every
�� insEanee;
� Implementatfon
� � The following steps should:be taken to minimize riskc
� � ■ Minim9ze use of hazardous matertals onsite.
� t ■ Follow manufacturer instruetions regarding uses,protective equipment, ventilation,
� } tlamma6ility, and mixing of chemicals.
■ Train personnel who use pesticides. The California Department of Pesticide Regulation and
{ � caunty agricultural commissionets license pesricide dealers,certify pesticide applicators,
• f 8nd conduct onsite inspections.
� � �r po not over-apply fertilizers,herbicides, and pesricides. Prepare only the amount needed.
� j Follow the recommended usage instructions. Over-application is e�cpensive and
environmentally harmful. Unless on steep slopes,dll fertilizers into the soil rather than
, � hydro seeding. Appiy surface dressings in severa]smaller applications, as opposed to one
'"large application,to allow Hme for infiltraYion and to avoid excess material being carried
+ 1 offsite by runoff. Do not apply these chemicals just before it rains.
� ) ■ Tcain employees and subcontractors in proper material use.
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` } � Supply Material SafeTy Dafa Sheets(MSDS)for all matedals.
■ . Dispose-of latex paint andpaint cans, used brushes,.rags,.absorbent materials, and drop
� i cloths,when thoroughly dry and are no longer hazardous,with other construcrion debris:
�, ■ Do not remove the original product label; it contains important safety and disposal .
� � information. Use the entire product before disposing of the container.
■ Mix paint indoors or in a containment area. Never clean paintbrushes or rinse paint
! � containers into a street,gutter,storm drain,or watercourse. Dispose of any paint thinners,
; ; residue,and sludge(s)that cannoE be recycled,as hazardous waste.
; , ■ For water-based paint,clean brushes to the e�ctent practicable;and rinse to a drain leading to
� ; a saniYary sewer where permitted, or into a concrete washout pit or temporary sediment _
trap. For oil-based paints, clean brushes to the extent practicable, and filter and reuse
thinners and solvents.
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I i ■ Use recycled and less hazardous products when practical. Recycle residua]paints,solvents,
non-treated lumber, and other materials.
� 1 ■ Use materials only where and when needed to complete the construction acrivity. Use safer
alternative materials as much as possible. Reduce or eliminate use of hazardous materials
, i onsite when practical.
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; � 2 of 3 Callfomla Stormweter BMP Handbook )anuary 2003
, Construdion
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� ���c����� ��n�i������ , �l���
�j Ob�ecCPve�,
� EC Erosbn Control
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�� �., . � 3E Sediment Control
TC Trecktng Gonfro{
� WE Wind Erosfon Controf
Noo-Stormweter
,1 - E. NS ManagerrrenE Corifrol
i� � �, WasteManagementand �
Meterials Poll'ution Controf
�� �. _ .Legendc .,. � � �
✓ PtimaryO6fective�
! Secondary Ob�ect(ve
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� 1 Description and Purpose Targeted Constituents
z� Stockpile Management procedures and practices aze designed Sediment ✓
""fb reduce or eliminate air and stormwater pollurion from NuMents ✓
� � stockpiles of soil,paving materials such as portland cement Trash ✓
aoncrete(PCC)rubble, asphalt concrete(AC),asphalt concrete Metals ✓
;1 rubble,aggregate base, aggregate sub base or pre-mixed gacteria
� I aggregate,asphalt minder(so called"cald mix" asphalt), and Oil and Grease ✓
`'"'�essure treated wood.
Organics ✓
T � 5�itable Applications
` J Implement in all projects that stockpile soil and other potential Alternatives
materials.
r j None
� � . Limjtations
Noneidentified.
� f Implementation
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Protection of stockpiles is a year-round requirement. To
7 � properly manage stockpiles:
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� J ■ Locate stockpiles a minimum of go ft away from
concentrated flows of stormwater,drainage courses,and
�� inleta
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■ Protect all stockpiles from stormwater runon using a
temporary perimeter sediment barrier such as berms,dikes,
�� fiber rolls,silt fences,sandbag, gravel bags,or straw bale
barriers. �; �, �
�Iliomla
(� Starmwater
� auanSy
� � AssoNatlon
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� � )anuary 2003 . Califomla Stormwater BMP Handbook 1 of 3
Construdlon
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All of tlie above are]ow cost measures.
[� InspectPon and Maintenance
■ Inspect and verify that activity—based BMPs are in plaee prion to the commencement of
associated activities. While activities associated witl�tHe BMP are under way,inspect weekly
�� dnivig the rainy season and of rivo-iveek intervais in the non-rainy season taverify
oontinued BMP implementation
�� ■ Repair and/or replace perimeter controla aud eovers as needed to keep them functioning
il Peoperly.
.� References
� Stormwater Quality Handbooks-Construction Site Best Management Practices(BMPs)Manual,
State of California Deparhnent of Transportation(Caltr�an.$),November 2000.
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[, January 2003 Calikrt�la SEormweter BMP Handbook 3 of 3
- Construdlon
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� Sp�i.�� P���ent�a� ;��c� �Qr����� . _ . �;���
� r ' F+1�eTs
�� ■ Lubricants
■ Other petroleum distillates
L(mltatfons
'�} ■ In some cases it may be necessary to uae a private spill cleanup company.
■ This BMP applies to spills caused by the con4ractor and subcontractors.
�� � Procedures and pracrices presented in this BMP are general. Ctlntractor should identify
appropriate practices for the specific materials used or sfored onsite
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} Impiementatlon
The following steps will help reduce tHe stormwater impacts of leaks and spills:
�� Educarion '
`j ■ Be aware that different materials pollute in different amounts..Make sure that each
s employee knows what a"significant spill°is for each material they use, and what is the
, � approgriate response for"significant"and`insignificanY'spills.
� ■ Edueate employees and subcontractors on potential dangers to humans and the
�� environment from spills and leaks.
� Hold regular meetings to discuss and reinforce appropriate disposal procedures (incorporate
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into reguJar safety meerings).
� � r - Establish a conrinuing education program to indoctrinate new employees.
� ■ Have contractor's superintendent or representative oversee and enforce proper spill'
prevention and control measures..
t ; . .
General Measures
i � ■ To the extent that the work can be accomplished safely,spills of oil,petroleum products,
� � suhstances listed under 4o CFR parts uo,iiy, and 3oz, and sanitary and septic wastes
should be contained and cleaned up immediately.
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�� ■ Store hazazdous materials and wastes in covered containers and protect from vandalism.
■ Place a stockpile of spill cleanup materials where it will be readily aecessible:
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j ■ Train employees in spill prevention and cleanup.
r l ■ Designate responsible individuals to oversee and enforce control measures.
L} ■ Spills should be covered and protected from stormwater runon during rainfaA to the extent
that it doesn't compromiee clean up activities.
�J ■ Do not bury or wash spilis with water.
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2 of 6 Celifomla Stortnwater BMP Handbook January 2003
Constructlon
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� ■ 8pills should 6e cleaned up immediately:
- Contain apread of the spill.
��
� � - Notify the project foreman immediately.
�� - If the spill occurs on paved or impermeable surfaces, clean up using"dry"methods
(absorbent materials,cat litter and/or ragsj, Contain the spill by encircling with.
absorbent materials anddo not let the apillapread rvldely.
�� - If the spilT oecurs in dirt areas,immediateIy contain the spill by constructing an earlhen
dike, Dig up and properly dispose of contaminated soil.
? - If the spill occurs during rain, cover spill with tarps or other material to prevent
� contaminating runoff.
_ Sigttificant/Aazardous Spilis
� ■ For significant or hazardous spills that cannot be controlled by personnel in the immediate
vicinity,the following steps should be taken:
1 - Notify the local emergency response by dialing gii. In addition to 911;the contractor will
� notify the proper county officials. It is the contractor's responsibility to have all
_ ,. emergency phone numbers at the construction site.
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- For spills of federal reportable quantities,in conformance with the requiremeuts in 40
� CER parts 1io,119,and 302, the contractor should notify the National Response Center
s at(Soo) 424-8802.
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- Notification should first be made by telephone and followed up with a written report.
_] - The services of a spills contractor or a Haz-Mat team should be obtained immediately.
Construction personnel should not attempt to clean up until the appropriate and
� qualified staffs have arrived at the job site.
' - Other agencies which may need to be consulted include,but are not limited to,the Fire
Department,the Public Works•Department,the Coast Guazd,the Highway Patrol, the
� City/County Police Department, Department of Toxic Substances,California Division of
� Oil and Gas,Cal/OSHA,etc.
r Reporting
� + Report significant spills to local agencies, such as the Fire Department; they can assist in
cleanup.
� r Federal regulations require that any signifieant oil spill into a water hody or onto an
} adjoining shoteline be reported to the National Response Center(NRC) at 800-424-8802
,
(24 hours).
j Uae the following measures related to specific activities:
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� 4 of 6 " Callfomia Stormwater 6MP Handbook January 2003
� Construdlon .
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� .5���_P'reven��o�� �n� .�a�n��a�i �Ci,��
�� � Keep ample s�pplies o€spilf controt and cleanup material's onsite,near storage;anloading;
and maintenance areas.
�� ■ Update your.spill prevention and control plan and stock cleanup materials as changes oecue
� i in the types of chemicals onsite.
� � References
Biueprint for a Clean Bay: Best Ivfanagement Peaetices to Pre�vent 3tormwater Pollution from,
Conshvction ReIated AcHvities;Santa Glara VaII'ey Nonpoinb SouTee Pollution Controt Program,
�� 1996•
1 Stormwater Quality Handbooks-Construction 3ite Sest Management P'raotices(BMPs)Manual,
r State of California Department of Transporfation(Caltrans),November 2000.
j � Stormwater Management for Construction Activifies;Developing Pollution Prevention Plans
and Sest Management Ptacrice,EPA 832-R-92oo5; USEPA,Apri1199z.
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I 6 of 6 Cailfomla Stortnwater BMP Handbook January-2003
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�� � Higfiway.planting wastes;includiug vegetative material,plant containers;and�pa¢kaging
j materials
�f Limitarions:
� Temporary stoekpiling of certain wnstruction wastes may not necessitate stringent drainage
related controls during the non-rainy season or in desert areas with low rainfall.
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� � Implementatian
Ttie foIIowing steps will help keep a clean site and reduce stormwater pollntion:
� � r Select designated waste collecrion areas onsite.
ij
■ Inform trash-hauling wntractors tflat you wiU accept only waterEight dumpsters for onsite
� 1j use. Inspect dumpsters for leaks and repair any dumpster that is not watertight.
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■ Locate containers iu a covered area or in a secondary containment.
; € ■ Provide an adequate number of containers with lids orcovers that can be placed over the
� 3 container to keep rain out or to prevent loss of wastes when it is windy.
T � .�. Plan for additional containers and more frequent pickup during tke demolition phase of
' ` construction.
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�t � Collect site trash daily, especially during rainy and windy conditions.
�f ■ Remove this solid waste prompUy since erosion and sediment control devices tend to collect
litter.
; � r'° `3vlake sure that toxic liquid wastes (used oils,solvents, and paints) and chemicals (acids,
° 1 pesticides, additives,curing compounds)are not disposed of in dumpsters designated for
conshvction debris.
��t_ ■ Do not hose out dumpsters osthe construction sita I,eave dumpster cleaning to the trash _
hauling contractor.
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� , ■ Arrange for regular waste collection before containers overflow.
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■ Clean up immediately if a container does spill.
� � ■ Make sure that construction waste is collected,removed,and disposed of only at authorized
disposal areas.
� � Educarion
� j ■ Have the contractor's superintendent or representative oversee and enforce proper solid
waste management procedures and practices.
� 1 ■ Instruct employees and subcontractors on identification of solid waste and hazardous waste.
�, ■ Educate employees and subconri�actors on solid waste storage and disposal proceduces.
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! 2 of 4 Callfornla Stortnwater BMP Handbook ]anuary2003
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t r For ctisposal of hazardous waste,see yVM-6,Hazardous Waste Management. Have
hazardous waste hauled fo an appropriate disposal and/or recycling fac�lity.
�� ■ Salvage or recycle useful vegefat3on debris,packaging and surplus building materials when ' _
Practicat. For eacample, trees and sht�ubs fiom land oTearing�can be used as a brush.barrier,
or converted into wood chips,then used as mulch on graded areas. Wood pallets,cardboard
S'• boxes,and eonshvcHon scraps ean also be Feeycled. ''
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COSts
f� AIl of the above are low cost meaeures.
° ` Inspectfon and Maintenanee
�, ■ Inspect 8nd verify that activity-6ased BMPs are in place prtoe�o the commencement of
;: � associated activities. Wliile acrivities associated with the$MP ate under way,inspect weekly
dnring the rainy season and of hvo-week intervals in the non-rainy season#o verify
continued BMP implementation.
� �
, � ■ Inspeet BMPs subject to non-stormwater discharge daily while non-stormwater discharges
occur
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' r' `Tn�pEct coastruction waste area regularly.
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■° Arrange�or regular waste collecrion.
� Fieferences
Ptocesses,Procedures and Methods to Control Pollution Resulting from All ConsYruction
,t Aetivit3',43O/9-73-OO�,USEPA, i973•
� Stormwater Quality Handbooks-Construcfion Site Best Management Pracfices(BMPs)Manual,
State of Califomia Departrnent of Transportation(Caltrans),November z000.
.>
jStormwater Management.for Construction Activities; Deyeloping Pollution Prevention Plans
and Best Management Practice,EPA 832-R-92oo5; USEPA,April i99z.
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� 4 of 4 CaIlPomin Stortnwatec BMP Handbook lanuery 2003
Construetlon _
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� Iti addition, siees with existing,strvctures may contain wastes,wflich must be disposed of ia
accordance with federal,state,and local regulations. These wastes include:
�� � Sandblasting grit mixed with lead-,.cadmium-,or chromium-based paints
u
r Asbestos
i � ■ PCBs (particularly in older transformers)
Limftations
i� r Hazardous waste that cannot be reused or recycled must be disposed of by a licensed
� � fiazaadous.waste hanler.
' � ■ Nothing in ttus BMP relieves the con4ractor from responsibility for compliance with federal,
state„and local laws regarding storage,handling,transportarion,and disposal of hazardous
wastes.
j ■ This BMP'does not cover aerially deposited lead(ADL)soils. For ADL soils refer to WM-�,
� Contaminated Soil Mauagement.
; ;Impiementation
_ j T't�e following steps will help reduce stormwater pollution from hazardous wastes:
-� Material Use
j ■ Wastes should be stored in sealed containers constructed of a suitable material and should
.. be labeled.r
� + All hazazdous waste should tie stored, transported, and disposed as required in'
i �CFR 26i-263.
, ■ Waste containers should be stored in temporary containment facilities Yhat should comply
fwith the following requirements:
- Temporary contau�uient facility should provide for a spill containment volume equal to
1 1.5 times the volume of all containers able to contain precjpitarion from a 2g year storm
� event,plus the greater of 10%of the aggregate volume of all containers or i00%of the
capacity of the largest tank within its boundary,whichever is gregter.
�
` - Temporary containment facility should be impervious to the materials stored there for a
} minimum contact time of�2 hours.
? - Temporary containment facilities should be maintained free of accumulated rainwater
1 and spills. In the event of spills or leaks, accumulated rainwater and spills should be
placed into drums after each rainfall. These liquids should be handled as a hazardous
� waste unless testing determines them to be non-hazardous. Non-hazardous liquids
) should be sent to an approved disposal sit0.
� - Sufficient separation should be pmvided beriveen stored containers fo allow for spill
� cleanup and emergency response access.
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� January 2003 � � � Callkmla Stottnwater BMP Handbook � 3 of 7
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� ���rr�a�� :I�a�t� ��a�g��e�� _ ��=�
� - Eiearfy label all hazardous wasfe containers witH the waste being stored and the date of
aecumulation.
� } - Plaee fiaaardous wasYe eontainers in secondary conta�nment.
- Do not allow potenHally hazardous waste materials to accumulate on the ground.
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� ' - Do not mix wastes.
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- Use all of the product before disposing of the container.
1 i - Do not remove the originaI product label;it contains important safety and disposal
infortnation.
r } Waste ReeycIing Dispnsa( ,
■ Select designated hazardous waste coUection areas onsite.
� � ■ Hazardous materials and wastes should be stored in covered containers and protected from
1 vaxidalism.
�} •r Place hazardous waste containers in secondary containment.
� _ .
' � � Do not mix wastes,this can cause chemical reactions, making recycling impossible and
.�
"'"'` complicating disposal.
i
_ i ■ Recycle any useful materials such as used oil or waterbased paint.
l � . Make sure that toxic liquid wastes(used oils,solvents,and paints)and chemicals (acids,
" ` - pesticides,additives,cnring comgounds)are not disposed of in dumpsters designated for
� construcfion debris.
? r �ange for regulaz waste collection before containers overflow.
f
'� ■ 1�Iake sure that hazardous waste(e.g.,excess oil-based paint and sludge) is collected,
� removed,and disposed of only at authorized disposal areas.
�
; Dtsposal Procedure3
■ Waste should be disposed of by a licensed hazardous waste transporter at an authorized and
1 licensed disposal facility or recycling facility utilizing properly completed Uniform
i Hazardous Waste Manifest forma
� ■ A Deparhnent of Health Services certified laboratory should sample waste to determine the
j appropriate disposal facility.
■ Properly dispose of rainwater in secondary containment that may have mixed with
' hazardous waste.
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■ Attenrion is directed to"Hazardous Material","Contaminated Material", and"Aerially
Deposited Lead"of the contract documents regarding the handling and disposal of
� hazardous materials.
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� January 2003 CaOfomla Stormwater BMP Hendbo0k 5 of 7
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� ■ The Nat₹onal Response Center,at(800)q2q-SSo2, should be notified o€spills of federaT
reporfable quantities in conformance with the requirements in 4o CFR parts i1o, 1i�, and
� 302. ,
■ A copy of the hazardous waste manifests should be provided.
� Referenees :
Blueprin��or• a Cfean Bay: Best M2riageiuent P'ractices tb Pteveut Storwwatefi PolIution from
� Construcrion Related Activiries; Santa Ct�ra Vall�;y Nonpoint Source Pollution Control Frogram,
� 1995.
Processes� Procedures and Methods to Control Pollution Resulting from All Construcrion
i Activity,430/9-73-00�, USEPA, i973.
J
Stormwater Quality Handbooks - Constniction Site Best Management Practices(BMPs)Manual;
� State of California Department of Transportation(Caltrans),November 2000.
� Stormwater Mauagem'ent for Construction Activiries; Developing Pollution Prevention Plans
and Best Management Practice, EPA 83z-R-92oog; USEPA,Apcil i992•
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I � � ]anuary 2003 �� . CaIlPornla Stormwater BMP Handboak 7 of 7
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� �E��'��'���1���E�• �'���� ������$i'�'� '' , ' ���^�'
��� SWPPP. Recent eout�rvlinga holdrng contraetors liable for elea�ug cosfs when they
. unknowingly move contaminated soiT highlight the need for contractors to confirm a site
�� assessment is compTeted before earth moving 6egiris.
a
� � The folTowing steps wilt fielp reduce stormwater pollution from contaminated soil:
�1 r Conduct thorough,pre-construction inspections of the site and review documents related to
( ; the site. If inspection or reviews indicated presence o€eontaminated soils, develop a plan
before starting work.
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� ■ Look for eoneaminated soil as evidenced bp diseolorarion, odors, differences in soil
' � properties, abandoned underground tanks or pipes, or buried debris.
� ? ■ Prevent leaks and spills. Contaminated soiT can be expensive to treat and dispose of
� y properly. However,addressing the problem before:construcrion is much less expensive than
after the structures are in place.
� ■ The contractor may further identify contaminated soils by invesHgafing:
- Past site uses and activities
T}
` } - Detected or undetected spills and leaks
- Acid or alkaline solutions fzom eacposed soIl or rock formations high in acid or alkaline
s� forming elements
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- Contaminated soil as evidenced by discoloration, odors, differences in soil properties,
r , abandoned underground tanks or pipes,or buried debris.
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` ' - Suspected soils should be tested at a certified laboratory.
i 1 Education
�j ■. Have employees and subcontractors complete a safety.training program whieh meets 29
CFR 18io.1zo . covering the potential hazards as identified,prior to
q � perfoLzning any excavation work at the locations containing material classified as hazardous.
� } r Educate employees and subcontractors in identification of contaminated soil and on
�
contaminated soil handling and disposal procedures.
t ■ Hold regtdaz meetings to discuss and reinforee disposal procedures(incorporate into regular
safety meetings).
� � Handling Procedures for Material withAerial[y Deposited Lead(ADL)
■ Materials from areas designated as wntaining(ADL)may,if allowed by the contract special
� provisions,be excavated,transported,and used in the construction of embanlmients and/or
� I backfill.
■ Excavation,transportation,and placement operations should result in no visible dust.
I � ■ Caution should be exercised to prevent spillage of lead containing material during transport.
( � 2 of 5 Ca11PornIa Storinwater BMP Handbook January 2003
Constructlan
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� �'������������g����� ����
�� - � Diutsioc�of Occupatlon Safefy and Healtf�Adin�nistr�tion�� OSHA)'
- Local regulatory agencies
(j Procedures for. Underground SEarage Tank Remova/s
■ Prior to commencing tank removal operations, obtain the required underground storage
�� tank remova]permits and approval from the federal,state, and local agencies that have
� � jurisdiction over such work.
r Ta determine if if contains hazardous substances, arcange to have fested, any liquid or
� � sludge found in the underground tank prior to its removal:
,� t
■ Following the tanle removal,take soil saznples beneath Yhe excavated tank and perform
�� analqsis as required by the local agency representative(s).
� ■ The underground storage tanla,any liquid or sludge found within the tank,and all
contaminated substances and hazazdous substances removed during the tank removal and
� iransported to disposal facilities permitted to accept such waste.
�
Water Control
� ■ All iaecessary precautions and preventive measures should be taken to prevent the flow of
� water,including ground water,from mixing with hazardous substances or underground
- stor�e tank excavations. Such preventarive measures.may cansist of but are not limited to,
.-.� berms, cofferdams,grout curtains,freeze walls, and seal course concrete or any combination
thereof.
■ If water does enter an e�ccavation and becomes contaminated, such water,when necessary to
1 proceed with the work, should be discharged to clean,closed top,watertight fransportable
� holding tanks, treated, and disposed of in accordance with federal, state, and local laws.
. �
Costs
' Prevention of leaks and spills is inexpensive. Treatment or disposal of contaminated soil can be
� � �quite eacpensive. -
" ' Inspection and Maintenance
■ Inspect and verify that activity—based BMPs are in place prior to the commencement of
as'sociated activities. While activiries associated with the BMP are under way, inspect weekly
during the rainy season and of two-week intervals in the non-rainy season to verify
j conrinued BMP implementation.. ,
■ Arrange for contractor's Water Pollution Control Man�ger,foreman, and/or construction
� supervisor to monitor onsite contaminated soil storage and disposal procedures.
■ Monitor air qualiTy confinuously during eaccavation operations at all locations containing
� hazardous material.
' � ■ Coordinate contaminated soils and hazardous substances/waste management with the
1 appropriate federal,state,and local agencies.
_)
i4 of S Califomla Stormwater BMP Handbook January 200?
Construdlon
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'WA9HOUT SE Sediment Controk
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N5 NonStormweter
'� Management Controf
� WasteManagementand �
Materials Pdlution Caitrol
-'� . Cegends
✓ Prlmary Ob�ective
✓ Secondary Ob�ective�
�
�
�
� Targeted Constituents
Description and Purpose sediment ✓
� Pcevent or reduce the discharge of pollutants to stormwater Nutnents
from concrete waste by conducting washout offsite,performing Trash
onsite washout in a designated area,and trainSng employee and
subcontractors. Metals ✓
� Bacteria
� Suitable Applications Oiland Grease
Concrete waste management procedures and practices are Organics
� implemented on construction projects where:
` ■ Concrete is used as a construction material or where Potential Alternatives
1 concrete dust and debris result form demolifion activities None
i
) .s . Slurries containing portland cement concrete{FCC)or
asphalt concrete(AC)are generated,such as fromsaw"
1 cutting, coring,grinding,grooving,and hydro-concrete
i demolition
� ■ Conerete trucks and other concrete-coated equipment are
r washed onsite
I - .
■ Mortar-mixing starions exist
1
� ■ See also NS-8,Vehicle and Equipment Cleaning
Limitations
j ■ Offsite washont of concrete wastes may not always be possible.
� � � � �
Ilfornla
) Stormwater
} Cuallty
- Assoclanon
� ]anuary 2003 Califomla Btortniveler BMP Handbook 1 of 7
1 Constructlon
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�� � Below grade conerete washout facititiea are�ypieaF. A6ove grride faeilities are used i�
excavation is not praerical.
�� � A foreman oe eonstruetion supetvisor shotild monitoF onsite conceete worlting tasks, such as
saw cutting,coring,grinding and grooving to ensure proper methoeLs are implemented.
�� ■ Saiv-cut P�C sluxry should not be allowed to enter storm dra3ns or watercourses. Residue
from grinding operations sfiould be picked up by means of a vacuutn attaehment to the
grinding machine. 3aw cutdng residue should not be aHowed to flow across the pavement
�� and should not be lett on the surfaee of tfle pavement. See also NS-g, Paving and Grinding
Operations;and WM-iq Liquid 41Faste Ivlanagementi
�
■ Slurry residue should be vacuuxned and disposed.in a temporazy pit(as described in OnSite
� 1'emporaty Concrete Washout Facilit}�, Ctincr�te T7ansit Trucle Washout Piocedures,below)
and allowed to dry. .Dispose of dry slurry residue in accordance with WM-y,Solid Waste
Management
� Onsite Temporary Concrete WashoutFacility, Tr¢nsit Truck Washout
' .Procedures
■ Temporary concrete washout facilities should be located a minimum of go ft from storm
� drain inlets,open drainage facilities, and watercourses. Each facility should be located away
i from construction traffic or access areas to prevent disturbance or tracking.
� `r A sign should be installed adjacent to each washout facility to inform concrete equipment
� operators to utilize fhe proper fac$ities.
`■ Temporary concrete washout facilities should be constructed above grade or below grade at
1 the option of the contractor. Temporary concrete washout faciliHes should be wnstructed
i and maintained in sufficient quantity and size to contain all liquid and concrete waste
generated by washout operations.
i
I ■ Temporary washout facilities should have a temporary pit or bermed areas of sufficient
j volume to completely contain aIl liquid and waste concrete materials generated during
f
washout procedurea
) ■ Washout of concrete trucks should be performed in designate8 areas only.
� ■ Only concrete from mixer hvel;chutes should be washed into concrete wash out.
J ■ Concrete washout from conccete pumper bins can be washed into wncrete pumper tcucks
and discharged into designated washout area or properly disposed of offsite.
i
j ■ Once conerete wastes are washed into tfie designated area and allowed to harden,the
concrete should be broken up,re�noved, and disposed of per WM-g,Solid Waste
� Management. Dispose of hardened boncrete on a regular basis.
■ Temporary Concrete Washout Facility(Type Abbve Grade)
I - Temporary concrete weshout facllity(type above grade)should be conshvcted as shown
i on the details at the end of this BMP, with a recommended minimum length and
I January 2003 CaIlPomla Stomiwater BMP Handbook 3 of 7
. Constvuctlon
www.cabmpha ndbooks.com
i
� �
' , ����
� �a�����e V►��s�� �a��:���+����r��.. .
�r � Refer.enees
d 1 Blueprint for a Clean Bay: Best Management Practices to Prevent Stormwater Pollurion from
Conslruction Related AcriviHes; Santa Clara Va11ey Nonpoint Source Pollution Control Program,
�� 1995•
Stormwater Quality Handbooks-Construction Site Best Management Practices(BMPs)Manual,
a � State of California Deparlment of Transportation(Caltrans),November 2aoo.
: t
3 � Stormwater Management for Construction Activiries; Developing Pollution PrevenHon PYans
f� and Best Management Praetice,EPA 83z-R-92oo�; USEPA,April i992•
' I
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� Januaty 2003 CaIlPomle Stormwater BMP Handbook 5 of 7
Construdlon
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10� MIL- - (TYP; PLYWOOD
PLASTIC LINING pLAN 48" X 24"
� � � �' NOT TO SCALE � �PAINTED WHITE
. T1PE "ABOVE GRADE"
- ' � WITH STRAW BALE� .
� �CONCRETE � ���ACK LETTERS
� � � WASHOU � E HEIGHT
� �` i1.5" LAG
� . � SCHEWS
3� wOGD POST
1 � 3" X 3"� X 8'
3'
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T COPICP.ETE WASHOU7
� SIGIJ DETAIL
f,(. . � � _ . . . � (OR EOUIyA�ENT) . . - . .
STAPLES
� (2 PER BALE) 10 MIL BII�IDING WIRE
1 � PLASTIC -LINING . .
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STRAW BALE
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NATIVE MATERIAL WOOD OR� NOTES
METAL STAKES
� (OPTIONAL) (2 PER BALE) i. ACTUAL LAYOUT DETERMWED
1
W FIELD.
SECTION B-B 2 SHALL�BERN�TALLED WITHINGN
, NOT TO SCALE 30 FT. OF THE TEMPORARY
j CONCRETE WASHOUT FACILITY.
� ]anua 2003
� rY CaIlPornla Stormwater BMP Handbook 7 of 7
-s Constructlon
www.ca bmphandbooks.com
�
�� _
� 1�i�-� ����t�r:���'��t�.-��ts��e :�a���e����
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�� r Sanitary and sep4ie syetems that diseharge directTy into sanitary sewer systems,where'
permissible,should eomply with the local health agency,city,couniy,and sewer district
requirements,
� ) ■ Only reputable,licensed sanitary and septie waste haulers should be used.
� ■ Sanitary facilities should be located in a convenient location.
� 1 ■ Untreated raw wastewater should never be discharged or buried.
� ? ■ Temporary septic systems should treat wastes to appropriate levels before discharging.
�
I �
� If using an onsite disposal system (OSDS);such as a septic system; local health agency
� � requirements must be followed.
■ Temporary sanitary faci]ities that discharge to the sanitary sewer system should be properly
connected to avoid illicit discharges.
� ■ Sanitary and sepric faciliries should be maintained in good working order by a licensed
service.
� ■ Regular waste collection by a licensed hauler should be arranged before faciliries overflow.
Education
� r Educate employees,subcontractors, and suppliers on sanitary and septic waste storage a�d
disposal procedures.
� ■ Eduoate employees,subcontractors, and suppliers of potential dangers to humans and the
� environment from sanitary and septic wastes.
■ Instruct employees,subcontractors, and suppliers in identification of sanitary and septic
1 waste.
� ■ Hold regular meetings:to discuss and"re"uiforce disposal procedures(incorporate into regular
� safery meetings).
i ■ Establish a continuing educarion program to indoctrinate new employees.
� CosCs �
jAll of the above are low cost measures. -
� Inspection and Maintenance
■ Inspect and verify that acrivity—based BMPs are in place prior to the commencement of
J associated activities. While activities associated with the BMP are under way,inspect weekly
during the rainy season and of hvo-week intervais in the non-rainy season to verify
1 conHnued BMP nnplementation.
■ Arrange for regular waste collecrion.
1
� ■ If high winds are expected,portable sanitary facilities must be secured with spikes or
weighed down to prevent over turning.
� 2 of 3 Califumla Stormwater BMP Handbook lanuary 2003
� . Constructlon
www,cabmp ha nd books,com
LARGE MAPS AVAILABLE
FOR
VIEWING
AT THE CLERK TO THE BOARD'S
OFFICE, IN THE PUBLIC REVIEW FILE.
� CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Weld County, Colorado
JN: 3075
December 12, 2005
Revised March 15, 2006
Revised March 31, 2006
Revised April 28, 2006
Revised May 4, 2006
Prepared for:
St. Vrain Metropolitan District No. 1
c/o Carma Colorado, Inc.
9110 East Nichols Avenue, Suite 180
Englewood, CO 80112
� Fax: 303-706-9453
303-706-9451
Prepared by:
K in Jen ings, EI - �
@p0 FiE��,
eviewed o�-'�,.TA,c' �i�,�
�d:•�,o ��
i� � r;a
Fed a, P ,':�j �3l�
PE No. 3 446, Expiration Date: 05-31-2007 � �
Engineering Manager
Carroll & Lange, Inc.
,/� 165 South Union Boulevard, Suite 156
�% Lakewood, CO 80228
Fax: 303-980-0917
�� 303-980-0200
} TABLE OF CONTENTS
I. INTRODUCTION ..................................................................................................1
II. BACKGROUND INFORMATION .........................................................................1
III. SITE INFORMATION............................................................................................2
IV. FLOODPLAIN INFORMATION .............................................................................3
V. DRAINAGE DESIGN CRITERIA...........................................................................3
VI. BASIN HYDROLOGY ...........................................................................................3
VII. DRAINAGE IMPROVEMENTS .............................................................................4
VIII. HYDRAULIC ANALYSIS.......................................................................................4
IX. DISCUSSION OF RESULTS ..............................................................................12
X. MAINTENANCE..................................................................................................12
XI. OWNERSHIP......................................................................................................12
XII. CONCLUSIONS..................................................................................................12
XIII. REFERENCES ...................................................................................................13
XIV. VICINITY MAP AND REFERENCE MATERIALS
XV. LETTERS AND CORRESPONDENCE FROM
AFFECTED AGENCIES
XVI. CONDITIONAL LETTER OF MAP REVISION (CLOMR)
APPLICATION FORMS
APPENDICES
APPENDIX A — Hydrauiic Analysis
Pre-Project Conditions Model
(NAVD 88 Datum) with CHECK-RAS output
APPENDIX B — Hydraulic Analysis
Post-Project Conditions Model
(NAVD 88 Datum) with CHECK-RAS output
APPENDIX C — Fioodway Analysis
100-year Pre-Project model
(NAVD 88 Datum) with CHECK-RAS output
APPENDIX D — Maps
Existing Firm Maps with Proposed 100-Year Floodplain
; CLOMR Work Maps
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
I. INTRODUCTION
The purpose of this report is to present hydrologic data, hydraulic data, and
applications to acquire a Conditional Letter of Map Revision (CLOMR) from the
Federal Emergency Management Agency (FEMA). The St. Vrain Lakes
development will use the existing lakes as irrigation storage, recreational
amenities and for stormwater detention purposes.
The reach of the St. Vrain River under investigation is located in Sections 35
and 36, Township 3 North, Range 68 West, of the Sixth Principal Meridian,
County of Weld, State of Colorado. The site is principally bounded by
Highway 66 to the north, Weld County Road 13 on the east, the St. Vrain River to
the south, on the southwest by Interstate 25 (I-25), and on the west by Weld
County Roads 11 and 9�/Z. The site is located in the segment of the St. Vrain
River ranging from approximately 56,414 feet to 70,610 feet from the point of
confluence with the South Platte River.
II. BACKGROUND INFORMATION
The St. Vrain River has a tributary area of approximately 500 square miles. Its
headwaters originate from the Continental Divide in the Rocky Mountains down
to the North and South St. Vrain River. The St. Vrain River basin has elevations,
which range from 4,900 feet to over 14,000 feet at Long's Peak. The St. Vrain
River is a part of the South Platte River Basin. The study reach extends from
approximately 3,800 feet downstream of the Weld County Road 13 bridge to
downstream edge of the bridge at the I-25 frontage road. Native grasses make
up the existing vegetation. Gravel mining has occurred in the study reach of the
St. Vrain River creating existing lakes adjacent to the river.
Previous Studies. The Colorado Water Conservancy Board, in conjunction with
the Army Corps of Engineers (ACOE), prepared a detailed study on this stretch
of the St. Vrain River in 1977. The input HEC-2 model from this study was
obtained and used as the base model. However, the output data from this study
was not published and was not available in any form. Information from FEMA
was requested and FEMA has indicated that there are no detailed studies
available for this stretch of the St. Vrain River.
A previousiy submitted CLOMR for this same location of the St. Vrain River was
approved in 1999. The request was based on a different proposed design
concept and was not constructed. The data used to prepare the above-
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Page 2
mentioned CLOMR was reviewed and found to have no applicable information
for this request.
III. SITE INFORMATION
A. Wetland Investiciation. The services of ERO Resources Corp were obtained
to investigate the site for wetland issues and environmental impacts due to
proposed improvements. The Investigations by ERO Resources Corp
indicate there are wetlands and waters of the U.S. on the site. These areas
are identified on the plan.
B. Site Description. The site is located in Weld County along the St. Vrain
� River. The overall length of the proposed St. Vrain Lakes grading which lies
within the 100-year floodplain is approximately 8,500 feet. The site north of
the St. Vrain River, outside of the floodplain has proposed grading to
support future singie-family and commercial development. This stretch of
the St. Vrain River lies within Flood Zone A, an area having a one-percent
chance of being equaled or exceeded in any given year where elevations
are not determined (see correspondence from FEMA). Gravel mining and
reclamation has occurred to the north and south of the St. Vrain River by
the Siegrist Construction Co. in accordance with the Special Use Permit in
Weld County SUP-441:80:31.
C. Soiis. The U.S. Department of Agriculture Soil Conservation Service, Soil
Surveys of Weld County depicts soils in the floodplain along this stretch to
be Aquolls. Aquolls is a deep poorly drained soil that formed in recent
alluvium. This soil type has a good potential as a source of sand and gravel
because it generally has an underlying layer consisting of sand and gravel
within 48 inches.
D. Mappinq. The existing topographic conditions are based on a recent two-
foot contour interval aerial topographic map that has been prepared for the
project (NAVD88 datum). Additional topographic information has been
obtained from an ACOE study from 1977 titled St. Vrain River and Boulder
and Idaho Creeks Del Camino Area Study. The ACOE model data was
created using the NGVD 1929 datum. The St. Vrain Lakes project has been
designed using the NAVD 1988 datum. The NAVD 1988 datum is +/- 3.05
feet higher than the NGVD 1929 datum. This has been verified by
published elevations on a field benchmark (P 320), which is within the
St. Vrain survey (see communication memo on "Datum Difference for St.
, Vrain Lakes, October 15, 2006). An example workmap from this study is
included in Appendix D.
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Page 3
The existing topography for the Pelican Shores development, located just
upstream of WCR 13, was provided by JLB Companies, NGVD 29. This
topography was 4.5 feet lower than the St. Vrain Lakes datum as
determined from survey shots on monuments within the Pelican Shores
development. This information is reflected in the HEC-RAS model. All
elevations listed in this CLOMR request are on NAVD 1988 datum unless
otherwise noted.
IV. FLOODPLAIN INFORMATION
FEMA has adopted the FIRM maps 080266 0855C and 080266 0850C, both
dated September 28, 1982. The floodplain is defined as Zone A for the area
under investigation. Refer to the maps section in Appendix D for these maps
and work map sheets.
V. DRAINAGE DESIGN CRITERIA
�
The regulations, guidelines, and drainage design criteria used are those
contained within the Weld County Design Standards and the Urban Drainage
and Flood Control District.
VI. BASIN HYDROLOGY
This reach of the St. Vrain River has had no formal Flood Hazard Area
Delineation (FHAD) studies performed to date. The hydrologic data used for the
St. Vrain River were developed in an ACOE study in 1977. The hydrologic data
uses are also consistent with the peak discharge data from the Longmont Flood
Insurance Study published in 1987 by the Federal Emergency Management
Agency. A copy of the table from this FIS is located in Section XV. The first
cross-section of the "Existing Lakes" reach is located upstream of the first lateral
weir, before any flow has entered the lake, however HEC-RAS requires that a
flow rate be specified at the top of every reach and therefore a flow rate of 1 cfs
was input for the "Existing Lakes" reach to meet this requirement.
The following table lists the flows used at the top of each reach with the
respective cross-sections.
10 YR. 50 YR. 100 YR. 500 YR.
CROSS- FLOW FLOW FLOW FLOW
SECTION CFS CFS CFS CFS
I-25 TO WCR 13 71770 5,950 12,850 16,700 41,960
EXISTING LAKES 71599 1 1 1 1
FULL RIVER 65735 5,950 12,850 16,700 41,960
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Page 4
VII. DRAINAGE IMPROVEMENTS
Drainage improvements to the existing gravel mined lakes will serve as the
detention requirements of the St. Vrain Lakes development. The lakes will
regulate the release rate from the St. Vrain Lakes development for the 10-year
and 100-year event by the use of an outlet structure. This outlet structure will
release detained flows at the 5-year onsite historic rate. The outlet structure
elevation will be set at 4,819.0 feet and is sized so that 0.7 feet of head will
convey the 5-yr historic release rate. The emergency spillway will be set at a
crest elevation of 4,819.7 feet. The 100-year offsite flows will be conveyed over
the spiliway to the St. Vrain River.
The portions of the flood from the St. Vrain River, which overtop the berm, will be
conveyed through the lakes through proposed inline spillways and back to the
St. Vrain River.
VIII. HYDRAULIC ANALYSIS
The hydraulic analysis along the St. Vrain River was performed using the U.S.
Army Corps of Engineers' Water Surface Profile computer program, HEC-RAS.
Mannina's n-values — The typical Manning's n-values used for the hydraulic
models was 0.04 for the main river channel and 0.07 for the river overbanks.
These n-values are consistent with the ACOE model. In the "Existing Lakes"
reach, the n-values were adjusted according to the proposed condition.
Documentation to support this determination of the Manning's n-value is provided
in Appendix A. More about this is discussed in the Post-Project Conditions
Model.
Pre-Proiect Conditions Model — The original floodplain model data of the lower
St. Vrain River has been obtained from the ACOE. This model was titled
Vrain1.dat. This model was in the HEC-2 format prior to the bridge routines
changing from the Omaha District Bridge Routine to the Special Bridge or
Normal Bridge routine. The model was therefore updated and converted into
HEC-RAS format.
This model was run with a downstream boundary condition of a normal depth
with a friction slope of 0.0025 ftJft. This is the approximate slope of the channel
in this location as determined from the USGS Quad map. The model stretches
from the downstream edge of the I-25 Bridge to the fully effective portion of the
river downstream of the effects from the WCR13 bridge.
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Page 5
�
Photo No. 1 Photo No. 2
Downstream of I-25 Frontage Road Upstream of Interstate 25 Bridge
Bridge Cross-Section 70610
Downstream of the I-25 bridge and I-25 frontage road bridge exists a riprap
rundown for energy dissipation due to the effects of the bridge. This structure
can be seen in Photo No. 1. Carroll & Lange, Inc. surveyed this structure and
has included it in the model at cross-sections 71735 — 71608. The bridge at
Weld County Road 13 has been improved since the ACOE study and a field
survey was also performed on the bridge and updated in the modei.
'
.,,,.�.aa� . .: ,..,... �.., :,.:,::
e u � �lif�I ._�"� .
� �
��� Photo #3
;:�.
`� vj � New bridge at Weld County Road 13
II;II
and St. Vrain River,constructed 2004.
Cross-Section 56400
Ineffective flow areas were designated and incorporated into the model upstream
and downstream of the bridges at I-25 and WCR13. A contraction ratio of 1:1
was utifized upstream of the WCR13 bridge and an expansion ration of 1.5:1 was
utilized downstream of the bridges. These ineffective flow areas are shown on
the work maps.
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
i ST. VRAIN LAKES
I Page 6
It was determined that the topography to the south of the study reach remained
primarily unchanged since the ACOE study in 1977. Therefore the two-foot
contours from the ACOE 1977 study work maps were digitized and translated to
NAVD88 and used in the area south of the St. Vrain River. There were new
lakes as a result of gravel mining south of the St. Vrain River, upstream of
WCR13, that were not accounted for by the 1977 topography. Carroll &
Lange, Inc. surveyed the high water surface elevation of these lakes, assuming
the lakes would fill up during the flood and they were included in the model as
blocked obstructions. There is current gravel mining downstream of WCR13.
The effects of this mining were approximately modeled with the use of blocked
obstructions in the areas of the current lakes created by the mining. However,
the high water elevation of these lakes downstream of WCR 13 was not
surveyed because the mining is on-going and therefore continuing to change.
It was also determined that the actual location of the river has moved in several
locations since the 1977 ACOE study due to a combination of erosion and mining
operations. The location of the existing Last Chance Ditch was used as a
� reference basis when revising the river location as it was determined that the
ditch had not moved.
Cross-section 62715 and 59195 were added to model the oxbow configuration of
the St. Vrain River. This was done by placing the main channel stations of the
river at the upstream intersection of cross-section 62715 and the at the most
downstream intersection of cross-section 59195. The channel downstream
reach length was input at the length following the river, and the right and left
overbank lengths were input as the straight length to the downstream cross-
section.
Since the area north of the St. Vrain River was mined for gravel and will be
reclaimed as lakes, a berm effect has resulted in the area between the
excavated lakes and the St. Vrain River. This berm is not a certified flood levee
and the 100-year and the 500-year flood overtops this berm at several low points
along the top of the berm. Therefore, a lateral weir was modeled at four low-
point locations along the berm to model this split flow scenario. The existing and
proposed lateral weirs are modeled with a weir coefficient of 2.63.
Documentation to support this determination is provided in Appendix A. The
Flows that overtopped into the lakes were then modeled as flowing into a
separate reach named "Existing Lakes." There are existing berms that separate
each of the three lakes up to an elevation of approximately 4,828 feet. Inline
weirs have been modeled at these ground-overtopping locations. The flow in this
reach and the flow in the St. Vrain River join at a junction at cross-section 65735.
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAfN LAKES
Page 7
This junction is also modeled as an inline weir. This flow is therefore effectively
conveyed through the lakes and back into the river, not retained.
This floodplain has been plotted on the pre-project conditions CLOMR work map
provided within the map section of this report. The 10-, 50-, 100-, and the 500-
year events have been modeled and the results of these models have been
presented within Appendix B.
Post-Proiect Conditions Model — A post-project conditions HEC-RAS computer
model has been created to model the proposed grading within the floodplain.
The proposed grading lies exclusively within the reach "Existing Lakes" and at
northern edge of cross-sections 57401 and 56496. The grading at cross-
sections 57401 and 56496 is to facilitate a future detention pond for the future
phases of St. Vrain Lakes Filing No. 1. All other cross-sections are identical
between the pre-project and post-project models.
The lateral weirs modeled in the post project condition model have a weir
' coefficient of 2.63. The Manning's roughness coefficient for the along the
shoreline of the "Existing Lakes" reach is 0.035 because the proposed grading
. will be gently roiling and native grass and manicured turf. The Manning's
coefficient will remain 0.04 in the middle of the "Existing Lakes" reach as there is
no proposed change to this area. The Manning's coefficient was increased on
the cross-section for the inline weirs to account for the proposed riprap spillways
at cross-sections 69479 and 65125. Documentation to support this
determination of Manning's roughness coefficient is provided in Appendix A.
The berm effect for the post-project condition was modeled in the same manner
as in the Pre-Project condition model. The 500-year model will be assumed to
over-top the berm in the same manner as the 100-year model. The proposed
grading for the lateral weirs will regulate the quantity of flow that overtops the
berm and will keep this quantity of flow above the flow rate that overtopped the
berm during the pre-project condition. The results of the post-project conditions
model have been presented in Appendix A. The 10-, 50-, 100-, and the 500-year
events have been modeled. The resulting floodplains have plotted and shown on
the post-project conditions CLOMR work map provided within the "Appendix D —
CLOMR Work Map" section of this report.
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Page 8
The following table compares the Pre-Project Conditions model base flood
elevations and Post-Project Conditions models:
Pre-Project Pre-Project Change in
Post-Project Post-Project
Conditions Conditions 100-year
Reach Reach Model Model Conditions Conditions water
Station �NAVD 1988 (NGVD 1929 Model (NAVD Model (NGVD surface
Datum) Datum) 1988 Datum) 1929 Datum) elevation
I-25 to ��770 4833.11 4833.11 4833.11 4830.06 0.00
Junction
71765 4832.84 4829.79 4832.83 4829.78 -0.01
71735 4832.72 4829.67 4832.70 4829.65 -0.02
71701 4829.64 4826.59 4829.64 4826.59 0.00
71634 4830.64 4827.59 4830.64 4827.59 0.00
71608 4830.65 4827.60 4830.63 4827.58 -0.02
71168 4830.20 4827.15 4830.19 4827.14 -0.01
70728 4829.38 4826.33 4829.35 4826.30 -0.03
70235 4828.65 4825.60 4828.61 4825.56 -0.04
69741 4827.81 4824.76 4827.76 4824.71 -0.05
69293 4826.87 4823.82 4826.84 4823.79 -0.03
68844 4825.82 4822.77 4825.79 4822.74 -0.03
68234 4824.67 4821.62 4824.64 4821.59 -0.03
67624 4823.61 4820.56 4823.60 4820.55 -0.01
66814 4822.24 4819.19 4822.24 4819.19 0.00
Existing 71599 4828.58 4825.52 4825.46 4822.41 -3.12
Lakes
71254 4828.58 4825.52 4825.46 4822.41 -3.12
70988 4828.58 4825.51 4825.45 4822.40 -3.13
70673 4828.56 4825.51 4825.45 4822.40 -3.11
70493 4828.56 4825.51 4825.44 4822.39 -3.12
69651 4828.47 4825.42 4825.36 4822.31 -3.11
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRA�N LAKES
Page 9
Pre-Project Pre-Project Changein
Post-Project Post-Project
Conditions Conditions 100-year
Reach Reach Model Model Conditions Conditions water
Station �NAVD 1988 Model (NAVD Model (NGVD
(NGVD 1929 1988 Datum) 1927 Datum) surface
Datum) Datum) elevation
69589 4828.39 4825.34 4825.27 4822.22 -3.12
69479 4828.39 4825.34 4825.27 4822.22 -3.12
69314 4821.11 4818.06 4821.75 4818.70 +0.64
68798 4821.09 4818.04 4821.68 4818.63 +0.59
67578 4821.03 4817.98 4821.37 4818.32 +0.34
66768 4820.97 4817.92 4821.19 4818.14 +0.22
66055 4820.87 4817.82 4821.04 4817.99 +0.17
65190 4820.75 4817.70 4820.80 4817.75 +0.05
65125 4820.75 4817.70 4820.80 4817.75 +0.05
65050 4820.56 4817.51 4820.56 4817.51 0.00
Full 65735 4820.09 4817.04 4820.09 4817.04 0.00
River
64600 4817.95 4814.90 4817.95 4814.90 0.00
64120 4817.12 4814.07 4817.12 4814.07 0.00
63640 4816.29 4813.24 4816.29 4813.24 0.00
63177.5 4815.79 4812.74 4815.79 4812.74 0.00
62715 4815.37 4812.32 4815.37 4812.32 0.00
59195 4814.35 4811.30 4814.36 4811.31 +0.01
58515 4814.04 4810.99 4814.05 4811.00 +0.01
57401 4813.52 4810.47 4813.53 4810.48 +0.01
56496 4812.87 4809.82 4812.86 4809.81 -0.01
56290 4810.50 4807.45 4810.50 4807.45 0.00
55330 4809.06 4806.01 4809.05 4806.00 -0.01
53970 4807.92 4804.87 4807.91 4804.86 -0.01
53240 4805.38 4802.33 4805.38 4802.33 0.00
52370 4802.40 4799.35 4802.40 4799.35 0.00
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Page 10
100-vear Floodwav/ Encroachment Model — A floodway analysis was performed
on the St. Vrain River to determine the required floodway width needed such that
the 100-year water surface elevation is not increased by more than 1.0 foot. This
was done by method 4, which determines encroachment stations, so that an
equal loss of conveyance occurs on each overbank if possible. When the main
river channel is encroached upon, the water surface is raised and therefore more
Flow overtops the lateral weirs and flows into the "Existing Lakes" reach. This
increases the flow rate in the "Existing Lakes" reach and therefore raises the
water surface level in this reach before any encroachment has been applied. A
balance of the encroachments on both sides of the river has been attained. This
creates a condition where both the north and south side of the river share the
encroachment and maintain both sides to be developable.
In the vicinity of cross-sections 60842.5, 58930 and 58830 a vertical increase of
1 .0 feet is not obtainable due to the oxbow configuration of the river. The
bounding cross sections at WCR 13 were not encroached until a vertical
increase of 1-foot was obtained because of the overtopping flow on the north
side of the bridge at WCR 13. A path for this overtopping flow needs to be
maintained and therefore the encroachment limit is outside this area. In several
locations, a vertical increase of 1.0 foot on one cross-section wouid produce a
condition with a higher than 1.0 foot verticai increase at the upstream cross-
section, and therefore not all cross-sections are increased by 1.0 foot. The
floodway boundary is plotted on the work maps and the results from this analysis
are inciuded in Appendix C. Below is a table of the cross-sections with the
encroachment stations and the vertical increase this encroachment would
produce.
Reach River Sta Profile Delta (ft) Enc Sta L (ft) Enc Sta R (ft)
I-25 to Junction 71770 0.1 1000.0 1277.0
I-25 to Junction 71765 0.0 1976.0 2271.0
I-25 to Junction 71735 -0.3' 1991.0 2211.0
I-25 to Junction 71701 0.1 1879.0 2206.0
I-25 to Junction 71634 0.2 1859.0 2200.0
I-25 to Junction 71608 0.2 1858.0 2201.0
1-25 to Junction 71168 0.3 1933.5 2510.0
I-25 to Junction 70728 0.3 2129.0 2780.0
I-25 to Junction 70235 0.4 2069.0 2950.0
I-25 to Junction 69741 0.6 2009.0 3130.0
I-25 to Junction 69293 0.4 2030.5 3074.0
I-25 to Junction 68844 0.1 2052.0 3000.0
CONDITIONAL �ETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Page 11
Reach River Sta Profile Delta (ft) Enc Sta L (ft) Enc Sta R (ft)
I-25 to Junction 68234 0.3 1000.0 2150.0
I-25 to Junction 67624 0.3 2528.0 3750.0
I-25 to Junction 66814 0.3 2402.0 3600.0
Existing Lakes 71599 1.0 1775.0 1858.0
Existing Lakes 71254 1.0 2045.0 2112.0
Existing Lakes 70988 0.8 1910.0 2112.0
Existing Lakes 70673 0.8 1820.0 2112.0
Existing Lakes 70493 0.6 1800.0 2129.0
Existing Lakes 69651 0.3 1650.0 1987.0
Existing Lakes 69589 1.0 1560.0 1987.0
Existing Lakes 69479 1.0 1600.0 2052.0
Existing Lakes 69314 1.0 2100.0 2528.0
Existing Lakes 68798 1.0 1870.0 2402.0
Existing Lakes 67578 0.9 1450.0 1824.0
Existing Lakes 66768 1.0 1205.0 2173.0
{ Existing Lakes 66055 0.4 1300.0 2097.0
Full River 65735 0.4 2161.0 3180.0
Full River 64600 0.4 1483.0 2860.0
Full River 64120 0.3 1398.0 2800.0
Full River 63640 0.1 1313.0 2750.0
Full River 63177.5 0.1 1326.5 3079.0
Full River 62715 0.2 1340.0 3112.0
Full River 59195 0.4 1299.0 3069.0
Full River 58515 0.4 1620.0 3542.0
Full River 57401 0.5 2250.0 4049.0
Full River 56496 0.4 2565.0 3640.0
Full River 56290 0.9 2552.0 3665.0
Full River 55330 1.0 2457.0 3796.0
Full River 53970 1.0 2541.0 4231.9
Fuli River 53240 0.3 2646.0 4178.6
Full River 52370 1.0 2489.8 3934.8
*Note: This cross-section shows a decrease of 0.3 feet in water surface elevation
during the floodway analysis. This cross-section is located downstream of the
I-25 frontage road and just upstream of the riprap rundown located approximately
85 feet downstream of the I-25 frontage road. A picture of this riprap rundown
can be seen in Photo No. 1, located at the beginning of this section. The velocity
at this cross-section is changed from 7.64 ft/s to 9.23 ft/s with only a 0.02-foot
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Page 12
change in the energy head. This large increase in velocity with the energy head
remaining unchanged requires that the water surface elevation to become
lowered.
IX. DISCUSSION OF RESULTS
The 100-year floodplain elevations change very little between the Pre-Project
conditions model and the Post-Project conditions model in the river reaches of
the St. Vrain River due to minor topographic changes between pre-project and
post-project conditions. The resulting 100-year floodplain has been plotted and
shown on the post-project conditions CLOMR work map provided within the map
section of this report. The hydraulic results of the post-project conditions model
have been presented within Appendix C.
X. MAINTENANCE
The proposed improved reach of the St. Vrain River and the proposed
� emergency overflow spillways are located in an area, which will be owned and
maintained by the St. Vrain Lakes Metropolitan District No. 1. St. Vrain �akes
Metropolitan District No. 1 will also perform normal open space maintenance.
XI. OWNERSHIP
The St. Vrain Lakes Metropolitan District No. 1 has been formed and is in the
approval stage. The purpose of St. Vrain Lakes Metropolitan District No. 1 is to
provide sanitation, water, traffic and safety control, street, public transportation
and park and recreation facilities for the property owners of the district. The
district encompasses approximately 1,317 acres in northern Weld County. The
developer, Carma Colorado, will begin purchasing the land from the current
landowners early in 2006. Infrastructure within the district is currently in the
design phase.
XII. CONCLUSION
This CLOMR design report for the St. Vrain River drainageway has been planned
to mitigate the effects of development. The improved drainage features will
convey a portion of St. Vrain River flood through the proposed site by the
effective use of emergency overflows into and out of the existing lakes. Grading
of the existing lakes wiil allow for recreational use of the lakes and will provide for
detention and flood control.
CONDITIONAL LETTER OF MAP REVISION (CLOMR)
FOR
ST. VRAIN LAKES
Page 13
Information has been provided to estabiish a 100-year water surface elevation in
the vicinity of the proposed development. The limits of this study extend beyond
the limits of proposed construction to correctly model the downstream boundary
condition of the St. Vrain River.
XIII. REFERENCES
1. Flood Insurance Study (FIS), City of Longmont, Boulder County, Colorado
unincorporated areas, revised September 18, 1987, FEMA Community
Number 080027.
2. Conditional Letter of Map Revision for Siegrist River Dance, Tuttle
Applegate Inc, December 1999.
3. Urban Storm Drainage Criteria Manual, UDFCD, June 2001.
4. Soil Survey of Weld County, Colorado, US Department of Agricuiture Soii
Conservation Service, September 1980.
5. St. Vrain River and Boulder and Idaho Creeks Del Camino Area Study wifh
HEC2 Model Vrainl.dat, Army Corps of Engineers, 1977.
6. Wetland Delineation; St. Vrain Ponds Development Project, ERO
Resources Corporation, September 3, 2004.
7. Flood Insurance Rate Map (FIRM), Weld County, Colorado, Community-
Panel Number 080266 0855C; revised September 28, 1982.
8. Flood Insurance Rate Map (FIRM), Weld County, Colorado, Community-
Panel Number 080266 0850C; revised September 28, 1982.
9. Floodplain lnformation and Flood Control Plan for St. Vrain Creek at
Longmont, Colorado. Water Resources Consultants, Inc., April 1981.
10. HEC-RAS Hydraulic Reference Manual Version 3.1, Hydraulic Engineering
Center US Army Corps of Engineers, November 2002.
11. Handbook of Hydraulics, Sevenfh Edition, Ernest F. Brater, Horace W. King,
James E. Lindell, C.Y. Wei, 1996
XIV. Vicinity Map
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TABLE 5.1 Values oC C fn Formule Q = CLH'��for Broad-Crested Weirs �
Breadth of crest of weir, m
nleasured _ —
l�ead, m 015 020 0.30 0.45 0.60 0.75 0.90 7.20 1.50 3.00 4.50
0.10 1.61 1.55 1.50 1.46 1.44 1.44 1.43 1.40 1.35 1.41 1.49
0.20 1.70 1.60 1.52 1.46 1.44 1.44 1.48 1.49 1.49 1.49 1.49
),O` -j 0.30 1-83 1.73 1.65 1.52 1.4i 1.46 1.46 1.48 1.48 1.48 1.45
ui 0.40 1.83 1.80 1.77 1.61 1.53 1.48 1.46 1.46 1.46 1.48 1.46
N 0.50 1.93 1.82 1.81 1.70 1.60 1.52 1.48 1..47 1.46 1.46 1.45
0.60 1.83 1.83 1.82 1.67 1.57 1.52 1.50 1..48 1.46 1.46 1.45
0.80 1.83 1.83 1.83 1.S 1 1.70 1.60 1.55 1.50 1.48 1.46 1.45
0.90 1.83 1.83 1.83 1.83 1.77 1.69 1.61 ]..51 1.47 1.46 1.45
1.0 1.83 1.83 1.83 1.83 1.83 1.76 1.64 1.52 1.48 1.46 1.45
1.2 1.83 1.83 1.83 1.83 1.83 1.83 1.70 1.54 1.49 1.46 1.45
1.4 1.83 1.83 1.83 1.83� 1.83 1.83 1.53 7..59 1.51 1.46 1.45
1.5 1.83 1.83 1.83 1.83 1.83 1.83 1.83 1.70 1.54 1.46 1.45
1.7 1.83 1.83 1.83 1.83 1.83 1.83 1.83 1.83 1.59 1.46 1.45
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Page I of 3
� T e of Channel and Descri tion Minimum Normal Maximu
A. Natural Streams
1. Main Channels
a. Clean, straight, full, no rifts or deep pools 0.025 0.030 0.033
b. Same as above, but more stones and weeds 0.030 0.035 0.040 Si Ura��j
c. Clean, winding, some pools and shoals 0.033 0.040 0.045 R�urr i�e�'n
d. Same as above, but some weeds and stones 0.035 0.045 0.050
e. Same as above, lower stages, more ineffective 0.040 0.048 0.055 �"�''""��
slopes and sections
f. Same as "d" but more stones 0.045 0.050 0.060
g. Sluggish reaches, weedy. deep pools 0.050 0.070 0.080
h. Very weedy reaches, deep pools, or floodways 0.070 0.100 0.150
with heavy stands of timber and brush
2. Flood Plains
a. Pasture no brush o�e�benks
1. Short grass 0.025 0.030 0.03 � .
o �mP,a�ra
2. High grass 0.030 0.035 0.050
b. Cultivatedareas 'tX,i{`✓ �"k"
1. No crop 0.020 0.030 0.040 �"°^^
2. Mature row crops 0.025 0.035 0.045
3. Mature field crops 0.030 0.040 0.050
c. Brush
1. Scattered brush, heavyweeds 0.035 0.050 0.070 oue�6>•rks
2. Light brush and trees, in winter 0.035 0.050 0.060 e F {� �1n"4'`
3. Light brush and trees, in summer 0.040 0.060 0.080 p�;�pef
4. Medium to dense brush, in winter 0.045 0.070 0.110
5. Medium to dense brush, in summer 0.070 0.100 0.160
d. Trees
1. Cleared land with tree stumps, no sprouts 0.030 0.040 0.050
2. Same as above, but heavy sprouts 0.050 0.060 0.080
3. Heavy stand of timber, few down trees, little 0.080 0.100 0.120
undergrowth, flow below branches
4. Same as above, but with flow into branches 0.100 0.120 0.160
5. Dense willows, summer, straight 0.110 0.150 0.200
3. Mountain Streams, no vegetation in channel, banks
usually steep,with trees and brush on banks submerged
a. Bottom: gravels, cobbles, and few boulders 0.030 0.040 0.050
b. Bottom: cobbles with large boulders 0.040 0.050 0.070
B. Lined or Built-U Channels
1. Concrete
a. Trowel finish 0.011 0.013 0.015
b. Float Finish 0.013 0.015 0.016
c. Finished, with gravel bottom 0.015 0.017 0.020
d. Unfnished 0.014 0.017 0.020
e. Gunite, good section 0.016 0.019 0.023
f. Gunite, wavy section 0.018 OA22 0.025
file://C:U3EC�IIEGRAS\3.1.3�F3e1pTable_Mann.htm 4/24/2006
Page 2 of 3
g. On good excavated rock 0.017 0.020
h. On irregular excavated rock 0.022 0.027
2. Concrete bottom float finished with sides of:
a. Dressed stone in mortar 0.015 0.017 0.020
b. Random stone in mortar 0.017 0.020 0.024
c. Cement rubble masonry, plastered 0.016 0.020 0.024
d. Cement rubble masonry 0.020 0.025 0.030
e. Dry rubble on riprap 0.020 0.030 0.035
3. Gravel bottom with sides of:
a. Formed concrete 0.017 0.020 0.025
b. Random stone in mortar 0.020 0.023 0.026
c. Dry rubble or riprap 0.023 0.033 0.036
4. Brick
a. Glazed 0.011 0.013 0.015
b. In cement mortar 0.012 0.015 0.018
5. Metal
a. Smooth steel surtaces 0.011 0.012 0.014
b. Corrugated metal 0.021 0.025 0.030
6.Asphatt
a. Smooth 0.013 0.013
b. Rough 0.016 0.016
7.Vegetal lining 0.030 0.500
C. Excavated or Dred ed Channe/s
1. Earth, straight and uniform
a. Clean, recently completed 0.016 0.018 0.020
b. Clean, after weathering 0.018 0.022 0.025
c. Gravel, uniform section, clean 0.022 0.025 0.030
d. With short grass, few weeds 0.022 0.027 0.033
2. Earth, winding and sluggish
a. No vegetation 0.023 0.025 0.030
b. Grass, some weeds 0.025 0.030 0.033
c. Dense weeds or aquatic plants in deep channels 0.030 0.035 0.040
d. Earth bottom and rubble side 0.028 0.030 0.035
e. Stony bottom and weedy banks 0.025 0.035 0.040
f. Cobble bottom and clean sides 0.030 0.040 0.050
3. Dragline-excavated or dredged
a. No vegetation 0.025 0.028 0.033
b. Light brush on banks 0.035 0.050 0.060
4. Rock cuts
a. Smooth and uniform 0.025 0.035 0.040
file://C:�HEC�I-IEC-RAS\3.1.3�FielpTable_Mann.htm 4/24/2006
Page 3 of 3
b. Jagged and irregular 0.035 0.040 0.050
5. Channels not maintained, weeds and brush
a. Clean bottom, brush on sides 0.040 0.050 0.080
b. Same as above, highest stage of flow 0.045 0.070 0.110
c. Dense weeds, high as flow depth 0.050 0.080 0.120
d. Dense brush, hi h sta e 0.080 0.100 0.140
file://C:UIEC�I-IEGRAS\3.1.3�F3elpTable_Mann.htm 4/24/2006
XV. Letters and Correspondence from
Affected Agencies
� Michael Baker Jr., Inc.
` 3601 Eisenhower Avenue �
Suite 130 . �
Alexandria, VA 22304 �- , ,- ��
'�allengeUs.
� �
� Mailed Fro
; 102720C
031A 000
Attn: Kevin Jennings
Carroll and Lange, Inc.
165 South Union Blvd.
Suite 156
Lakewood, CO 80228
� �L�226t221D^3�Y G6?0. �����i��un�.����r�t��n��i�����u��{iu������uu��uu��ii���1
GL�iCY MAN
� �- r 7C
�� � ��%��z NATIONAL FLOOD INSURANCE PROGRAM
FEMA MAP COORDINATION CONTRACTOR
J �I
�� >
. �i�p3y`� *'?A�
Octaber 26, 2005
IN REPLY REFER TO:
Case No.: B0608015
Kevin Jennings
Carroll and Lange, Inc.
16� South Union Blvd.
Suite 156
Lakewood, CO 80228
Dear Mr. Jennings,
This is in response to your October 18, 2005, letter requesting FEMA back up data for St. Vrain
Creek in Weld County, Colorado. The area you have requested is designated as Zone A on the
Flood Insurance Rate Map. The Zone A designation identifies azeas having a one-percent chance
of being equaled or exceeded in any given year (base flood) that is detennined by approximate
inethods. There is no detailed modeling for this area. Please download a copy of the FEMA
publication "Ma�iaging Floodplain Development in Approximate Zone A Areas" from ihe FEMA
website, http.L/www.fema.gov/fhm/dl zonea.shtm. This will help you in developing the base
flood elevations for the Zone A area. Thank you for your request and we look forwazd to serving
you again in the future
If you have any questions regarding your request or this letter please contact me by telephone at
(703) 960-8800 x7484, or by electronic mail at Genevieve.bieniosek@mapmodteam.com
Sincerely,
_ �
G vieve Bieniosek
FEMA Project Library
3607 EisenhowerAvenue,Suite600,Alexandna,Virginia 22304-6425 PH:703.9fi0.8800 FX�703.960.9tt5
Michael Baker Jr.,Inc.,under contract with the FEDERAL EMERGENCY MANAGEMENT AGENCY,is a
Map Coordination Contractor for the National Flood Insurance Program
Jt. Vram Creek Weld County (:U Yage 1 oT 1
Kevin Jennings
From: Ruckman, Jody L NWO [Jody.L.Ruckman@nwo02.usace.army.mil]
Sent: Friday, September 23, 2005 10:46 AM
To: kjennings@carroll-lange.com
Subject: St. Vrain Creek Weld County CO
Kevin,
I have researched your request and I believe I have found the original study (VRAINi)as well as an updated
model (VRAIN97)of the same reach. The original is likely still considered by FEMA to be the effective model as
the updated model was not mapped, as per Tom Gorman of our office who worked on the updated model. You
will probably need to run the two models and compare them if you hope to use the newer model. These are
longer reaches than your study area but they do contain your reach of interest. I hope the attached models help
you with your study.
Good Luck,
Jody L. Ruckman, P.E., CFM
US Army Corps of Engineers, Omaha District
Attn: CENWO-ED-HB
106 South 15th Street
Omaha, NE 68152
402-221-4872
jody.l.ruckman @usace.army.mil
«VRAIN1.DAT» «VRAIN97.DAT»
10/25/2005
„ Carroil s� Lange= COMMUNICATION MEMO
" 165 South Union Blvd., Suite 156 10800 E.Bethany Dr., Suite 785 P.O.Box 3345
Lakewood, Colorado 80228 Aurora, CO 80014 63 Coopet Creek Way, Suite 334E
303/980-0200 (303)337-8017 Fax:3374272 Winter Park, CO 804823345 �
, Fax:303/980-0917 970/726-8100
� Fax:970l726-9100
PROJECT St, U/a n LakeS Job No. �Q75 CM
NAME(S) REPRESENTING Date �o / /S / 05
�;/� /7�¢.�/b�c�. �N'r1/d-L.a.ye Sheet / of �
f-/�o� T4M�+ C�.iie(� f La�c T[ME
--� �M EET W G
❑RECEIVED CALL
❑COMPLETED CALL
❑LEFT MESSAGE
SUBJECT: F/a�u.n C�i��'n`nct +�/' �t �/arn � �.oS
NOTE5: r
�ir �3Z9 � S� 'P5 0� �n>,-e��/o ti!`3 c�//�a.e- iiSrJ y�t aai Sur�ry
C n�m� �'�9 s f�. ��,l-<ey �Pnt�� .r*oi� /T �e,rc.r+1 au/ '
PIPJ � ��/' � l��,l IF79 L°aTe�/�'! 546t/3Cf 3 OS TYP� /"t �� !.+ rf/'•G�•Y
� � � ,�n yar�3�ir� P,puefr:��s nd �.s sto� b�Pro �'�P�i� U�i.�. r�.
.s� �/i' vl ,�n�es tln �l.�m
$� CQi�m Z9 D�1��� �'g -�z�
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; - �_-_°�
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w 3y� yg9s va S�SyZ.3 S -3.�Z
N 329 �/17y, y3 '�9�� 3G - 3e7
M 3� ? Saa 9 9 z $ed S'82 - 3, /o
CC: BY: /�eo,l1 �cnrr�119S
a
,� � � MEMORANDUM
TO: Kim Ogle, Planner DATE: 12-January-2006
CFROM David Bauer, P E , Public Works Department
.
COLORADO SUBJECT: CLOMR for PZ-1078 St. Vrain Lakes PUD
Weld County Public Works Department has reviewed the CLOMR report and application for the St. Vrain Lakes —
Carma project.
Comments
❑ St. Vrain Lakes PUD is planned for up to 5,131 single family residential and commercia] building sites. The south
edge of the proposed project borders the 100-year floodplain of the St. Vrain River.
❑ Carma / St. Vrain Lakes PUD (applicant) has submitted, to Weld County and FEMA, a 12/12/0S CLOMR report
requesting a revision of the 100-yeaz floodplain map. The report relies on an un-published 1977 U.S. Army Corps of
Engineers hydrology report for determination of the peak flow in the St. Vrain River. The peak flow in the St. Vrain
River is influenced by seasonal snowmel[ in addition to contributions from rainstorm runoff.
o A substantial amount of change to the St. Vrain River drainage basin up-gradient of the Carma/St. Vrain Lakes site
due to new development has occuned since 1977. Those structural changes likely contributes a significant amount of
runoff to the river. On-going sand and gravel mining up-gradient of and adjacent to the Carma/St. Vrain Lakes site
also likely influence the flood response of the river. The modeling approach presented in the CLOMR report is an
acceptable approach to evaluation the 100-year floodplain, however the hydrologic assumptions need verification.
❑ The applicant should verify and demonstrate in the 12/12/0S CLOMR report that the estimated peak flows passing by
the proposed development property accurately reflect current condi[ions.
o The report assumes that the existing berms, that were left by prior gravel and sand mining along the north side of the
St. Vrain River channel, will continue to exist in their present configuration during the 100-year flood. This
assumption may not be justified for un-armored, geotechnically unstable sand and gravel deposits. Additional
supporting information is needed to justify this assumption.
❑ The report does not address the length of time that the peak flow occurs. The 12l12/0S CLOMR report assumption,
that the ponds located at the St. Vrain Lakes site have capacity to receive the proposed overflows, needs to be
evaluated. It may be that the ponds' storage capacity is soon exhausted and that the remaining peak flows pass
downs�eam unattenuated in the main river channel causing higher water levels than projected.
o The CLOMR report cannot be accepted until it has been stamped, signed and dated by a pro£essiona] engineer
licensed in the State of Colorado
Recommendation
.......................................................................................................................................................................
❑ The Public Works Department does not recommend approval of this CLOMR application. Public Works is amenable
to meet with the applicant to discuss the above noted concems.
. Page 1 of 1
fhe applicant shall address the comments listed above at the speci�ic step�af thc revrew pxQeess s#ated. The review
process will continue only when all appropriate elements have been submitteds Any issue's bf concern'must be
' resolved with the Putilic Works Department prior to recordiug the change of ione and final plats.�
� uC: PK-107A St. Vrain I.ak�s Pl!D
nail &OriginaL Planncr
Page 2 of 2
Carroll s� Lange= ��
Professional Engineers Fi Land Surveyors ��
Lake�vood • Loreland • Wintcr Park �
January 30, 2006
JN: 3075
Weld County Public Works
Attn: David Bauer, PE
1111 H Street
P.O. Box 758
Greeley, CO 80632-0758
Re: CLOMR for PZ-1078 St. Vrain Lakes PUD
Dear David:
We have reviewed your comments made in a letter dated January 12, 2006. For ease
of addressing the comments, we have included the comments and offered our
responses in bold.
1. St. Vrain Lakes PUD is planned for up to 5, 131 single family residential and
commercial building sites. The south edge of the proposed project borders the
100-year floodplain of the St. Vrain River.
2. Carma / St. Vrain Lakes PUD (applicant) has been submitted, to Weld County
and FEMA, a 12/12/05 CLOMR report requesting a revision of the 100-year
floodplain map. The report relies on an un-published 1977 U.S. Army Corps of
Engineers hydrology report for determination of the peak flow in the St. Vrain
River. The peak flow in the St. Vrain River is influenced by seasonal snowmelt in
addition to contributions from rainstorm runoff.
Response: See response with comment 3.
3. A substantial amount of change to the St. Vrain River drainage basin up-gradient
of the Carma/St. Vrain Lakes site due to new development has occurred since
1977. Those structural changes likely contribute a significant amount of runoff to
the river. On-going sand and gravel mining up-gradient of and adjacent to the
Carma/St. Vrain Lakes site also likely influence the flood response of the river.
The modeling approach presented in the CLOMR report is an acceptable
approach to evaluation the 100-year floodplain, however the hydrologic
assumptions need verification.
Response: The hydrologic data used in the CLOMR (Conditional Letter of
Map Revision) report is consistent with the peak d9scharge data from the
Longmont Flood insurance Study published in 1987 by the Federal
Emergency Management Agency. A copy of the table from this FIS has
been attached for review.
A report by Water Resources Consultants, Inc. (WRC), titled Floodp/ain
Information and Flood Control P/an for St. Vrain Creek at Longmont,
165 South Union Blvd.,Sui[e 156•Lakewood,Colomdo 80228•Main (303) 980-0200•Fax(303) 980-09 V
3985 Sou[h Linceln A�'emie.Suite 250�Loveland.Colorado 805��7�,\lain (9�07 292-5635�Fax(970)292S639�Denver Dir. (3031 865-5088
97 Cooper Creek t1'a�'.Suite:?8� P-O.Eo�6:45�WinCer Park Colo�'ado 8048L�_4o�,Aiain �9�0� 726-8100�Fax �?rJ) 726-9100�Dem'er Dir.�505� 980-9600
Weld County Pubiic Works
Attn: David Bauer, PE
January 30, 2006
�� JN: 3075
Page 2
Colorado, published in April 1981, contains a table which was also
referenced for "Year 2000 Urbanization at Longmont and Lyons." This
table lists 100-year peak flows for the St. Vrain River at Idaho Creek
(located just upstream of I-25) of 17,070 cfs. On page 38 of this report,
there is discussion of the results under section C. Comparison of the Peak
Flows for DifFerent Development Conditions. Within this discussion, WRC
states, "...[VVJe can see that the percentage increase in peak flows
resulting from the year 2000 development conditions is minimal. Such
increases ranging from none to 1.55% will have a minimal impact on the
water surface elevations resulting from the 100-year frequency flood."
They continue on to say, "In some cases for the 50-year and 500-year
floods, because of flood peak desynchronization, the year 2000 urbanized
discharges are siightly lower than those for the existing conditions." The
referenced pages of this report are attached.
Due to this 'minimal difference,' the Army Corp of Engineers Study was
used in the CLOMR as this study contained a level of detail not found in
any other study including adjusted flow rates at all stations along the St.
Vrain River accounting for the routing effect of a flood in a river, as well as
the contributions from smaller tributary streams along the reach of the
river.
However, Carroll & Lange, Inc. performed an exercise as a check to the
sensitivity to the peak discharge on the water surface elevation. In order to
obtain an increase of one foot to the 100-year water surface elevation an
increase in flow of approximately 6,000 cfs would be needed. This is an
increase of apqroximately 38% to the total peak flow.
4. The applicant should verify and demonstrate in the 12/12/05 CLOMR report that
the estimated peak flows passing by the proposed development property
accurately reflect current conditions.
Response: See discussion above.
5. The report assumes that the existing berms, that were left by prior gravel and
sand mining along the north side of the St. Vrain River channel, will conitnue to
exist in their present configuration during the 100-year flood. This assumption
may not be justified for un-armored, geotechnically unstable sand and gravel
deposits. Additional supporting information is needed to justify this assumption.
Response: Concrete debris was placed along the river embankment during
the previous mining operation. However, we are currently working with our
geotechnical consultant regarding the stability of the existing river
embankment during flood events. Stability recommendations, if any, will
Weld County Public Works
Attn: David Bauer, PE
January 30, 2006
JN: 3075
Page 3
be incorporated into the design of the lake reclamation. We have also
recently met with the State Engineer's office regarding the existing
embankment. Based on this meeting, we have designed a widened
embankment to provide a minimum top width to height ratio of 10:1.
Although our HEC-RAS model includes a lateral weir with split flow
analysis in the north overbank (existing lakes) area, we are projecting the
floodplain elevations associated with the main river channel for this area.
This conservative assumption eliminates a levee effect for the existing.
embankment.
6. The report does not address the length of time that the peak flow occurs. The
12/12/05 CLOMR report assumption, that the ponds located at the St. Vrain
Lakes site have capacity to receive the proposed overflows, needs to be
evaluated. It may be that the ponds' storage capacity is soon exhausted and that
the remaining peak flows pass downstream unattenuated in the main river
channel causing higher water levels than projected.
Response: The portion of the flow that overtops the berm and flows into
the proposed lake area is directly connected to the St. Vrain River at a
junction at cross-section 64715, which is modeled as an in-line weir. This
flow is therefore effectively conveyed through the lakes and back to the
river with no attenuation.
7. The CLOMR report cannot be accepted until it has been stamped, signed and
dated by a professional engineer licensed in the State of Colorado.
Response: The CLOMR report has been stamped, signed, and dated by a
professional engineer licensed in the State of Colorado.
If you have any further questions or comments, please do not hesitate to contact us.
Sincerely,
CARROLL & LANGE, INC.
� �
Kevin Jennings, EI
Engineer 11
cl
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; Table 1. Swuaacy of Discharges
Drainage Area Peak Dischacges (cfs)
_ Floadin� Soucce and Location (Squace Hiles) 10-Yeac 50-Year 100-Year 500-Year
Dcy Czeek No. 1
Above Confluence With Steele Lakes
Tributacy --� 271 674 987 1,812
Above Confluence Wit4 Clovec Basin
Tcibutazy 1 56B 1,268 1,726 3,112
Below State Highway 119 —1 26D 330 350 415
tefthand Cceek
At Mouth 72 520 2,480 4,610 10,320
St. Vrain Creek (Vicinity
of Longmont)
r
At Mouth 924 5,350 12,120 16r520 40,080
�
Spring Gulch 1
At Mouth — 1,950 3,150 3,650 4,200
�ata Not Available
�
FLOODPLAIN INFORMATION
AND
FLOOQ CONTROL PLAN
FOR
ST. VRAIN CREEK
AT
LONGMONT, COLORADO
�Prepared for
CITY OF LONGMONT
, - BOULDER COUNTY � � �
and the
. � COLORADO WATER CONSERVATION -SOARD
� Prepared by
WF�C
WATER RESOURCES CONSULTANTS, INC.
2765 SOIITH COLORADO BOULEVARD, SUITE 218
DENVER, COLORADO 60222
(303) 757-8513
APRIL 1981
i
9utcon Rock Dam was then inserted in the calibrated SW[�f model of St.
Vrain Creek at the Lyons gage and rainfall was applied to the 211 square miles
of mountain area. It was found that 6-hour rainfall over South St. Vrain
Creek and North St. Vrain Creek below Button Rock Dam genera[ed higher dis-
charges at Lyons than did rainfall over the entire mountain area. The adop[ed
frequency curve at Lyons therefore does not reflect any contribution [o peak
discharges from the 109 square miles above But[on Rock. The adopted frequency
curve at the mouth was modeled hy applying 6-hovr rainfall Co the 924 square
miles of contributing basin area. This curve was developed for existing con-
ditions� and aith But�Eon-R�ock�-Dam in place. � - - - .
Two different 6-hour storms were used in determining ihe 5-, 10-, 50-,
100-, and 500-year discharge profiles. The profiles above Boulder Creek were
produced by centering a storm over Che St. Vrain basin above fioulder Creek,
excluding tti2 area abwe Button Rock Dam. From Che mou[h of Boulder Creek to
the mou[h of St . Vrain Creek, [he discharge profiles were developed by apply-
� ing rainfall [o the enti�re contribu[ing area of the 6asin.
. The iesulting peak flows, based on [he above described proc:dure , are
presenced in� Table-4 for the existing basin development conditions, and Table-
5 for year 2000 Urbaniza[ion. The discharge profiles for existing condi[ions
above Boulder Creek are shown in Figure-3.
C. Ccmparison of the Peak Flows for Uifferent Developmenc Conditions
Information rela[ed to the peak flows for the 100-year #lood for the
existing and year 2000 basin development conditions is presented in Tables
4 and 5. From this informa[ion, we can see that the nercenta¢e increase
in peak flows resultinR from the vear 2000 deueloDment conditions is minimal
Such increases ranQi�Q from none to I .SSX will have a minimal impact on the
water surface eleva[ions resultinR from the 100—year frequency flood. Further,
the proposed drainage improvements should be adequate to provide the protection
needed over the next 20 years . In some cases for the 50-year and 500- ear floods,
-38-
because of flood peak desynchronization, the year 2000 urbanized discharQes are
slightly lower than [hose for the existing Fonditions.
-39-
i
TABLE-4 '
ST. VRAIN CREEK DISCHARGES '
(EXISTING CONDITIONS)
Drainage
Station Area 5-Year 10-Year 50-Year 100-Year SQO-Year
(sq.mi.) (c.f.s. ) (c.f.s .) (c.f.s.) (c.f.s.) (c.f.s. )
Confluence, No. 211 , 102* 1 ,3D0 2,040 5 570 8,880 20,260
& So. St. Vrain ' '
Lyons Gage 212, 103* 1 ,300 2,030 5,560 8,830 20, 140
Triburaries Above 1 ) I* 1 ,450 2,480 6,060 8,970 20,Z70
Below 120* 1 ,650 3,050 6,850 9,750 21 ,440
Lykins Gulch Above 132* 1 ,980 3, 160 6,890 9,580 19,680
Be1ow 143* 2,450 3,690 7,610 10, 160 20,500
Dry Creek Above 144* 2,480 3,660 7,430 9,820 19 ,940
Selow 156* z, 7g0 4 , 110 8,240 10,.580 21 ,200
LefChand Cr. � Above 157* 2,7gp 4 , 110 8,240 10,580 21 ,200
The Slough Below 242* 3,500 5,250 10,950 14 ,850 28 ,670
Dry Creek 6 Above 245* 3,300 5, 120 10,790 14 ,610 28,470
Spring Gulch Below 274* 4 ,000 6,010 12,580 16,440 31 ,790
Boulder Creek A6ove 277* 4 ,000 6,010 12,500 16,440 31 ,790
Selow 825** 4,050 6, 110 12,500 16,630 42,400
Idaho Creek Above 837** 4,000 5,910 12 140 16 320 41 590
Below 849** �050 6,070 12 500 16 510 41 960
Right Bank Tribs Above 850** 3,900 5,760 12,350 16,350 41 ,360
Below 881** 4,000 5,920 12,900 16,760 41 ,900
Lef[ Bank Tribs Above 904** 3,800 S,SIO 12,370 16,530 40,520
Below 920** 3,800 5,520 12,400 16,560 40,590
Platteville Gage 976, 922* 3,700 5,410 12,200 16,540 40,230
Mouth 924** 3,650 5,350 12, I20 16,520 40,080
* Contributing Area (Excludes Area Above Sut[on Rock Dam)
** Contributing Area (Includes Area Above Button Rock Dam)
-40-
TABLE-5 I
ST. VRqIN CREEK
YEAR 2000 UR$ANI2ATI0N
AT LONGMONT AND LYONS !
Drainage
S[a[ion Area 5-Year 10-Year 50-Year 100-Year 500-Year
�sq.mi.) (c.f.s.) (c.f.s. ) (c.f.s.) (c.f.s. ) (c.f.s . )
Confluence No. 211, 102* 1,300 2,040 5,570 8,880 20,260
6 Sc. S[. Vrain
Lyo�s Gage 212, 103* 1,300 2,03G 5,560 8,830 20, 140
Tribu[aries Above I11* 1 ,450 2,490 6,070 9,.080 20,270
Below 120* 1,650 3,070 6,860 9,960 21 ,450
Lykins Guich Above 132* 2,050 3, J80 6,900 9,870 19,680
� � . Below � 143* ?,500 3,750 7,610 10,510 20,460
Dry Creek Above 144* 2,500 3,710 7,450 10,220 19,910
Below 156* 2,800 4 , 190 8,280 I1 ,080 21 , 140
Lefihand Cr. 6 Above 157* 2,800 4, 190 8,28U 1I,080 21 , 140
The� Slough . Below 242* 3,�00 5,520 11, 120 15,220 28, 500
Dry�Creek 6 Above 245* 3,600 5,440 II ,010 15,080 28, 370
Spring Gulch $elow 274* 4,400 6,510 13,050 17,450 31 ,920
Boulder Creek Above 277* 4,500 31 ,920
Below 825** 4,550 6,590 13, 130 17,520 42,240
Idaho Creek Above 837** 4,470 6,400 41 430
Below 849** 4,500 6,480 12,940 ]7,290 41 790
Right Bank Tribs Above 850** 4,300 6,280 12,780 17,070 41 , 190
Below 881** 4,450 6,SOD 12,800 17,270 41 ,730
Left Bank Tribs Above 904** 4,050 5,990 12,280 16,910 40,360
Below 920** 4,050 6,000 12,320 16,990 40,430
Plat[eville Gage 976, 922** 4,000 5,880 I2, 120 I6,830 40,070
Mou[h 924** 3,950 5,820 12,030 16,770 39,930
* Contrihuting Area (Excludes Area Above Button Rock Dam)
** Contributing Area (Includes Area Above Sutton Rock Dam)
Underlined Discharges (6,400) Indicate Discharges Above the Lines Were Obtained
from 277 Square Mile Contributing Area Ahove Boulder Creek.
—42—
,
a MEMORANDUM
� � 1'O: Kevin Jennings, Carroll & Lange, Inc. DATE: 21-March-2006
W���� FROM Brian Varre]la, P E , Public Works DepaRment
• SUBJECT: St. Vrain River Conditiona] Letter Of Map Revision(CLOMR)
COLORADO
Weld County Public Works Department has reviewed this CLOMR at the request of Carrol] & Lange. Comments
made during this intermediate review are not all-inclusive, and must be addressed before [he CLOMR will be
approved by Weld County staff.
Comments
❑ A CLOMR for the St. Vrain River at St. Vrain Lakes PUD(PZ-1078)was sent to Public Works by Kevin Jennings at
Carroll& Lange, Inc., on March 2Q 2006 for an intermediate review by staff prior to the next submittal.
o The following comments are not al]-inclusive. More comments may follow after the CLOMR has been re-submitted
to Public Works.
CLOMR Comments:
1. Reclaimed Mine Ponds (Gravel Pits):
a. It is recommended that a note be included in the report and in the model to discuss the n-value choice for
the gravel pit reach. FEMA will be looking for some justification of n-values for these features.
b. It appears there is a pond missing on the south overbank from Sections 56555, 55330, 53970, 53240, and
52370. The geometry of the cross section indicates deep overbank feamres, and the aenal photos at ihose
sections suggest the presence of ponds.
c. For the EXISTING LAKES reach:
i. The previous submitta] showed different proposed WSELs and operates independently of each
other, and the release weir returning flow will operate independently of both of these ponds. All
connections between ponds and to the nver willlikely have a short sec[ion of supercntical flow in
large storm events. To simulate these behaviors in HEGRAS,additional cross sections are
required in the EXISTING LAKES reach of the model.
ii. FEMA will require complete and accurate modeling of all proposed features conshvcted with fill
in this reach, including islands, peninsulas, weirs between ponds,retum weirs to the river, and
others. This is cntical for CLOMR approval and future LOMR submittals to FEMA. Please
make sure all features have cross sections on both sides,and across the top (if necessary), with
the exception of inline weirs (see the next comment).
iii. The overtopping ground sections between the ponds at section 69640 and 68595 should be
modeled as inline weirs to ef£ectively model the rapidly-varied flow charactenstics of these
features. Please refer to Chapter 8 of the Hydraulic Reference Manual for specifics on modeling
inline weirs.
iv. Please be sure that Manning's-n values are appropriate for proposed erosion control features on
the inline and]ateral weirs, and that the geometries match those o£the plan sheets submitted to
Public Works. ,
2. Boundary Conditions:
a. Each profile should have only one peak flow rate at the top of each reach for the entire study reach. The
reviewed model had multiple flow changes at multiple locations, but since the model uses optimized
lateral weirs for flow budgeting, it is no longer necessary to have intemal flow changes.
. ..... _.. ._. _ Page I of 3
b. How was the normal depth downstream friction slope of S f= 0.0015 fUfr determined? Downstream
topography from USGS maps suggests a different slope, and the current model shows an M1 profile from
Section 53240 and Section 52370. This profile is not likely—please revisit.
� 3. Ineffective Flow�
a. The ineffective flow elevation appeazs to be too ]ow on ihe nght overbank at Section 56414—this section
is never overtopped by any of the profiles in the study,and should be raised in similar fashion to adjacen[
sections.
b. The ineffective flow elevation may be too low at Sections 55330 and 53970—if this ineffective flow area
is attributed to road fill, it should be overtopped on the left bank of the roadway at CR 13 in the 100-year
storm and be fully effective downstream at 55330 and 53970. If there is another feature creating this
ineffective flow,please note in the cross section descnption boxes.
4. Bridge at WCR 13:
a. Sections 56414 and 56386 are crowding the bridge. The bridge appears to be 28 ft from upstream face to
downsheam face, and these sections are 28 ft apart. They should be moved back to a location that
intercepts the toe of slope where the shoulders intercept natural topography. Please refer to Figure 5.1
and Figure 5.2 (A) in the Hydraulic Reference Manual, Chapter 5, Page 5-3 and 5-6.
i. Please adjust the Distance for the deck and roadway embankment.
ii. Please adjust the width of your bridge—it should represent ihe distance from the upstream face to
the downstream face, or the out-ro-out dimension. This is where ihe 28 ft should be used.
iii. Abandon intemal bndge cross sections—there is no need for anydiing but the default BRU and
BRD sections, as described in Chapter 5 of the Hydraulic Reference Manual.
b. Side slopes of zero(vertical) are not representative of existing conditions at WCR 13. Please correct to
represent ihe appropriate shoulder slopes after moving the bounding sections away from the bridge.
c Why are the channel bank stations perched so high above the surrounding topo at Sections 56414 and
56386? Remember, these sections are the bounding sections for the bridge,and should represent natural
ropography without any road fill. All road fill data is entered into the Deck and Roadway Editor.
d. In the Bndge Modeling Approach window you have checked the boxes to calculate the Energy method
and Momentum method for low flow,but have selected the button to use the Energy Only method for
reporting. Please change this to Highest Energy Answer and ]et the program report the appropriate
method.
e. Continuity Challenge (Complex Issue)
i. The 100-year overtopping flow at the weir section of WCR 13 is about 2,000 cfs. The cross
section immediately upstream(56414) has a total discharge of 5,840 cfs in the lefr overbank
supplying ihe weir. There will be only 20 or 30 feet of distance between the upstream bridge face
and XS 56414. This flow distribution suggests 3,840 cfs abandons the lefr overbank and
squeezes through the bndge opening in less than 30 feet of longitudinal distance, and the
remaining 2,000 cfs flows over the weir. This discontinuity is a numerical anomaly of the
program, and is not physically possible at this bridge, and is likely to receive comment from
FEMA reviewers.
ii. The cross sections upstream of the bridge at Sections 56414 and 56555 need to be adjusted to
maintain continuity in HEGRAS. The program authors at HEC recommend changing the n-
value in the overbank such that the total flow azriving to the weir section of WCR 13 is within
10%to 20%of the totat flow over the weir. In this case,the weir is limiting how much flow is
conveyed in the left overbank at Sections 56414 and 56555. The Manning's-n values should be
increased in the left overbank at these sections to decrease the total conveyance upstream of the
road.
iii. Be sure to carefully document the use of artificially-high n-values in your CLOMR report and in
the description boxes of the Cross Section Data Editor in HEGRAS.
5. Weirs:
a. The weir coefficients for your lateral weirs are too high at side-spill weirs. These weirs are not as
efficient as inline weirs, and the Gvalue will not be 3.0. Please refer to the Hydraulic Reference Manua]
Chapter 5 (2002), King(1963), Brater and King(1976), HEG22 FHWA-NHI-01-O21 (2001),or other
hydraulic reference foran appropriate C-value.
Page 2 of 3
b. Note that inline weirs are con[rolled by the EGL where water approaches the weir directly,and the
velocity head approaches zero at the weir. Side weirs are controlled by the water surface,as they are
located adjacent ro flow regions with a positive velocity head.
6. Enors, Warnings, and Notes:
a. Section 62755 needs additional sections around it. The main channe] Froude number is 0.92 in the 100-
year storm,and the Summary of Errors, Warnings, and Notes indicating Ihe need for more cross sections
based on the change in velocity head, the total energy]oss, and the conveyance ratio.
b. Please check the model at other locations for these warnings. There are still too many of these throughout
the model, indicating the�eed for more sections.
The applicant shall address.the comments listed above. Th�;review pcocess wiYLcon#�"nue-when all,appcopriate
elemenfS have been submitted.: Any Issues of concern must be°:cesol�ed>vnfir'tF►e-Y'u6h�`Wvr-l�s Depastment prior to
approval of this CLCIMR. -
Page 3 of 3
Carroll s� Lange= /��
� ProFessional Engineers&Land Surveyors ;�--,
Lakewood • Loveland • WinterPark
, March 22, 2006
JN: 3559
Brian Varrella, PE
Weld County Public Works
1111 H Street
P.O. Box 758
Greeley, CO 80632-0758
Re: St. Vrain River Conditional Letter of Map Revision (CLOMR)
Dear Brian:
We have reviewed your comments made in a letter dated March 21, 2006. For ease of
addressing the comments, we have included the comments and offer our responses in
bold.
CLOMR Comments
1. Reclaimed Mine Ponds (Gravel Pits)
a. It is recommended that a note be included in the report and in the model to
discuss the n-value choice for the gravel pit reach. FEMA will be looking for
some justification of n-values for these features.
Response: The Manning's n-value for the split flow reach named
"Existing Lakes" in the pre-condition model is 0.07 for the over-bank
sections and 0.04 for the main channel. In the post-condition model
the Manning's n-value for the "Existing Lakes" reach has been revised
to be 0.03 for the main channel and the left over-bank section as this
area will be well-maintained, and the right over-bank section has been
revised to 0.035 as it wiil also be maintained but possibly to a lesser
degree. The Manning's n-values for the St. Vrain River reach wiil
remain the same from the pre-project condition to the post-project
condition since all the proposed grading lies within the "Existing
Lakes" reach.
b. It appears there is a pond missing on the south overbank from Sections
56555, 55330, 52970, 53240, and 52370. The geometry of the cross
section indicates deep overbank features, and the aerial photos at those
sections suggest the presence of ponds.
Response: The model has been revised to represent these existing
lakes. The high water elevation of these lakes was approximated with
respect to the surrounding topography.
I65 Sou[h Union Bl�d..Suite 156•Lakewood,Colorado 80228�Alain (303)980-0200•Fax(3031 980-0917
3985 South Linmin A�'enue,Suite 250�Loveland.Colorado 80537�btain (970) 29Z-5635�Fax(970) 292-5639•Denrer Dir. (3031 865-5088
47 Coope[Creek W'a��, Sui[e 52&•P.O.Bes 3345�Win[e[Pat'k. Colo[ado 80482-?345 �,Alain �9i01 %26-8100�Fax(9701 T2E-9100�Dem'e[Dic (30�" 9S0�6C0
Brian Varrella, PE
Weld County Public Works
March 22, 2006
JN: 3559
Page 2
c. For the Existing Lakes reach:
i. The previous submittal showed different proposed WSELs and
operates independently of each other, and the release weir returning
flow will operate independently of both of these ponds. All connections
between ponds and to the river will likely have a short section of
supercritical flow in large storm events. To simulate these behaviors in
HEC-RAS, additional cross sections are required in the EXISTING
LAKES reach of the model.
Response: Additional cross-sections have been added to the
"Existing Lakes" reach to more accurately simulate the weir flows
between the river and the lakes.
ii. FEMA will require complete and accurate modeling of all proposed
features constructed with fill in this reach, including islands,
peninsulas, weirs between ponds, return weirs to the river, and others.
This is critical for CLOMR approval and future LOMR submittals to
FEMA. Please make sure all features have cross sections on both
sides, and across the top (if necessary), with the exception of inline
weirs (see the next comment).
Response: The model has been updated to include accurate
modeling of all proposed features associated with the St. Vrain
Lakes development.
iii. The overtopping ground sections between the ponds at section 69640
and 68595 should be modeled as inline weirs to effectively model the
rapidly-varied flow characteristics of these features. Please refer to
Chapter 8 of the Hydraulic Reference Manual for specifics on modeling
inline weirs.
Response: All overtopping ground sections have been modeled
as either lateral weirs or in-line weirs.
iv. Please be sure that Manning's-n values are appropriate for proposed
erosion control features on the inline and lateral weirs, and that the
geometries match those of the plan sheets submitted to Public Works.
Response: The Manning's n-value has been increased in the
areas of the in-line weirs to account for erosion control features.
Brian Varrella, PE
Weld County Public Works
March 22, 2006
J N: 3559
Page 3
2. Boundary Conditions
a. Each profile should have only one peak flow rate at the top of each reach
for the entire study reach. The reviewed model had multiple flow changes
at multiple locations, but since the model uses optimized lateral weirs for
flow budgeting, it is no longer necessary to have internal flow changes.
Response: The profiles have been revised to have only one peak flow
rate at the top of each reach. The highest flow rate for each profile
was used as the peak flow rate at the top of each reach.
b. How was the normal depth downstream friction slope of Sf=0.0015 ft/ft
determined? Downstream topography from USGS maps suggests a
different slope, and the current model shows an M1 profile from Section
53240 and Section 52370. This profile is not likely — please revisit.
Response: The downstream friction slope has been revised to be
Sf=0.0025 ftlft.
3. Ineffective Flow
a. The ineffective flow elevation appears to be too low on the right overbank at
Section 56414 — this section is never overtopped by any of the profiles in
the study, and should be raised in similar fashion to adjacent sections.
Response: This cross-section has been removed because it was on
top of the bridge and incorrectly crowding the bridge.
b. The ineffective flow elevation may be too low at Sections 55330 and 53970
— if this ineffective flow area is attributed to road fill, it should be overtopped
on the left bank of the roadway at CR 13 in the 100-year storm and be fully
effective downstream at 55330 and 53970. If there is another feature
creating this ineffective flow, please note in the cross section description
boxes.
Response: WCR 13 causes the left bank ineffective flow areas for
sections 55330 and 53970 and the lowest portion of this road is 4811.
Brian Varrella, PE
Weld County Public Works
March 22, 2006
J N: 3559
Page 4
4. Bridqe at WCR 13
a. Sections 56414 and 56386 are crowding the bridge. The bridge appears to
be 28 ft from upstream face to downstream face, and these sections are 28
ft apart. They should be moved back to a location that intercepts the toe of
slope where the shoulders intercept natural topography. Please refer to
Figure 5.1 and Figure 5.2 (A) in the Hydraulic Reference Manual,
Chapter 5, Page 5-3 and 5-6.
Response: Cross section 56414 has been removed as it was on top of
the bridge and was modeling the bridge incorrectly.
i. Please adjust the Distance for the deck and roadway embankment.
Response: The distance has been revised.
ii. Please adjust the width of your bridge — it should represent the
distance from the upstream face to the downstream face, or the out-to-
out dimension. This is where the 28 ft should be used.
Response: The bridge is actually 65 feet wide from edge to edge.
The bridge had been modeled incorrectly in the prior model.
iii. Abandon internal bridge cross sections — there is no need for anything
but the default BRU and BRD sections, as described in Chapter 5 of
the Hydraulic Reference Material.
Response: The internal bridge cross-sections have been
remaved.
b. Side slopes of zero (vertical) are not representative of existing conditions at
WCR 13. Please correct to represent the appropriate shoulder slopes after
moving the bounding sections away from the bridge.
Response: The correct side slopes on the bridge have been inserted
into the model.
Brian Varrelia, PE
Weld County Public Works
March 22, 2006
JN: 3559
Page 5
c. Why are the channel bank stations perched so high above the surrounding
topo at Sections 56414 and 56386? Remember, these sections are the
bounding sections for the bridge, and should represent natural topography
without any road fili. All road fill data is entered into the Deck and Roadway
Editor.
Response: Cross-section 56414 has been removed from the model
because it was in the incorrect location. Cross-section 56386 has
been revised to show the appropriate grading.
d. In the Bridge Modeling Approach window you have checked the boxes to
calculate the Energy method and Momentum method for low flow, but have
selected the button to use the Energy Only method for reporting. Please
change this to Highest Energy Answer and let the program report the
appropriate method.
Response: The Highest Energy Answer option has been checked for
reporting so that the program can report the appropriate method.
e. Continuity Challenge (Complex Issue)
i. The 100-year overtopping flow at the weir section of WCR 13 is about
2,000 cfs. The cross section immediately upstream (56414) has a total
discharge of 5,840 cfs in the left overbank supplying the weir. There
will be only 20 or 30 feet of distance between the upstream bridge face
and XS 56414. This flow distribution suggests 3,840 cfs abandons the
left overbank and squeezes through the bridge opening in less than 30
feet of longitudinal distance, and the remaining 2,000 cfs flows over
the weir. This discontinuity is a numerical anomaly of the program,
and is not physically possible at this bridge, and is likely to receive
comment from FEMA reviewers.
Response: The model has been revised so that the flow which
overtops the road is within 10-20% of the left over-bank flow at
the cross-section upstream and downstream of the road.
ii. The cross sections upstream of the bridge at Sections 56414 and
56555 need to be adjusted to maintain continuity in HEC-RAS. The
program authors at HEC recommend changing the n-value in the
overbank such that the total flow arriving to the weir section of WCR 13
is within 10% to 20% of the total flow over the weir. �n this case, the
weir is limiting how much flow is conveyed in the left overbank at
Brian Varrella, PE
Weld County Public Works
March 22, 2006
JN: 3559
Page 6
Sections 56414 and 56555. The Manning's-n values should be
increased in the left overbank at these sections to decrease the total
conveyance upstream of the road.
Response: The n-value for the left over-bank area of the cross-
section downstream of the overtopping bridge was artificially
decreased to 0.04 to convey more flow. The n-value of the left
over-bank area of the cross-section upstream of the overtopping
bridge was increased to 0.1. This produced flows that are within
10-20% of the weir flow at the bridge.
iii. Be sure to carefully document the use of artificially-high n-values in
your CLOMR report and in the description boxes of the Cross Section
Data Editor in HEC-RAS.
Response: The artificially altered n-values have been
documented in the report and the model description box.
5. Weirs
a. The weir coefficients for your lateral weirs are too high at side-spill weirs.
These weirs are not as efficient as inline weirs, and the C-value will not be
3.0. Please refer to the Hydraulic Reference Manual Chapter 5 (2002), King
(1963), Brater and King (1976), HEC-22 FHWA-NHl-01-021 (2001), or other
hydraulic reference for an appropriate C-value.
Response: The weir coefficients for the lateral weirs in the pre-
condition model have been revised to 2.5, and the weir coefficient for
the post-condition has been revised to 2.6, since these will be
maintained weirs.
b. Note that inline weirs are controlled by the EGL where water approaches
the weir directly, and the velocity head approaches zero at the weir. Side
weirs are controlled by the water surFace, as they are located adjacent to
flow regions with a positive velocity head.
Response: Comment noted.
Brian Varrella, PE
Weld County Public Works
March 22, 2006
JN: 3559
Page 7
6. Errors. Warnings and Notes
a. Section 62755 needs additional sections around it. The main channei
Froude number is 0.92 in the 100-year storm, and the Summary of Errors,
Warnings, and Notes indicating the need for more cross sections based on
the change in velocity head, the total energy loss, and the conveyance ratio.
Response: A cross-section has been added upstream and
downstream of this cross-section.
b. Please check the model at other locations for these warnings. There are
still too many of these throughout the model, indicating the need for more
sections.
Response: Many of the other warnings have been eliminated by the
addition of cross-sections.
Should you have any further questions or comments, please do not hesitate to contact
me.
Sincerely,
CARROLL & LANGE, INC.
�`�r �
Kevin Jennings, EI
Engineer II
cl
cc: E / R
a MEMORANDUM
� '� � 1�*�
TO: Kevin Jennings, Carroll & Lange, Inc. DATE: 17-Apri]-2006
W���� FROM Bnan Varrella, P E , Public Works Depaitmeut
• SUBJECT: St. Vrain River Conditional Letter Of Map Revision (CLOMR)
COLORADO
Weld County Public Works Department has reviewed this CLOMR at the request of Carroll & Lange. Commenis
made during ihis intermediate review are not all-inclusive, and must be addressed before the CLOMR will be
approved by Weld Counry staff.
Comments
a A CLOMR for the St. Vrain River at SL Vrain Lakes PUD {PZ-1078)was sent to Public Works by Kevin Jennings at
Carroll & Lange, Ina The CLOMR is dated Mazch 31,2006,and was received by Public Works on April 14, 2006.
❑ The St. Vrain River CLOMR has been stamped, signed, and dated by Fred G. Tafoya,P.E. #30446.
a The £ollowing commenis are not all-inclusive. More comments may follow afrer the CLOMR has been re-submitted
to Public Works.
CLOMR Commenis:
This CLOMR submittal has been cazefully prepared, is well-documented,and shows vast improvements over previous
submittals. Weld County Public Works appreciates the high level of effort and detail Carroll &Lange staff has
nlaced into their hydraulic models for the St. Vrain Lakes CLOMR.
L General Comments:
a. Please remove all unused plans and geometries from the HEC-RAS model before final submittal.
b. Interpolated cross sections must either be replaced by actua] cross sections, or removed from the model.
It would be acceptable to remove the asterix (*) from the cross section name and note in the description
box that the section was creared using interpolation between Section X and Section Y.
c. Please choose another line color and/or line style for the existing FEMA 100-year Floodplain on all
drawing sheets. The current line is difficult to discem.
d. The section ID numbers do not correspond to main channel reach lengths in the model. Please update
section IDs for consistency with downs[ream reach length.
e. Many wamings still exist within the model calling for more cross sections. Please consider adding
sections as appropriate.
2. Pre-Project HEC-RAS Model Comments
a. Why is the left overbank ineffective in cross sections downstream of 56386? The bridge is overtopped on
the left overbank in the 50-, 100-, and 500-year models, and all downstream cross section left overbanks
should be fully effective for these sections unless a topographical feature exists to cause ineffective flow.
b. The upstream bndge face(BRU) section at WCR 13 shows ineffective flow for the 50-and 100-year
profiles. The roadway is clearly overtopped and overtopping flow is calculated(correctly)for both of
ihese profiles. The ineffective flow elevation at the upstream face of the bridge should be adjusted for
consistency.
c. XS 70645 shows both overbanks convey water in the 100-and 500-yeaz sirnulations. The work maps
show both overbanks are dry. Please correct the model or the work maps for consistency.
d. Please correct the ground at XS 69494 (Existing Lakes reach) to match the topography shown in the work
maps.
e. Please remove XS 68595 from the work map if it is not included in the HEGRAS models.
_ _ . Page l of 3
f. Please represent the actua] location of Ihe lateral weirs on the work maps where the overtopping crest is
located. Most of them aze shown about 10 to 50 ft north of the overtopping section on[he work maps.
g. Page 7 of the CLOMR text makes the following s[atement about the spli[flow(Existing Lakes)reach:
"Although our HEC-RAS model includes a lateral weir with split flow analysis in the north overbank
(exsting lakes) area, we are projecting the Jloodplain e(evations associated with the main river channel
for this area. This conservative assumption eliminates a levee effect jor the uisting embanlnnent. " This
is conservative with respect to preserving the embankment,but is not conservative with respect to WSEL
and floodplain/floodway delineation.
i. This is not an appropriate application of the split flow features of HEGRAS. The lateral weir
function is designed to allow the split flow reach to operate semi-independently of the adjacent
river, and for the main channel and adjacent split flow ponds to have different WSELs. Please do
❑ot project floodplain elevations from the main channel into the split flow reach.
ii. The proposed WSEL in the first pond is identified as 4819.0 ft-NAVD. This WSEL should also
represent the approximate still-water elevation of the blocked obstructions representing ponds
throughout the study reach. Please revise the Existing Lakes reach of all models to represent this
WSEL for the upper pond, and a similar WSEL for the lower pond. Please indicate the
appropriate operating WSEL for[he lower pond on the work maps.
h. Any and all cross sections inside defined zones of ineffective flow must have increased expansion and
contraction coefficients. This includes ineffective flow caused by bridge embankment and topographical
features. Please refer to the HEC-RAS Hydraulic Reference Manual,Chapter 5,Table 5.2 for appropriate
values of contraction and expansion coefficients.
3. Post-Project HEGRAS Mode] Comments
a. Please apply pre-project wmmenis to the post-project model,where applicable.
b. The description box in[he Plan Window indicates the model represents pre-project conditions. Please
revise the description for the post-project condition.
c. A Manning's-n value of 0.04 was applied to the ponds of the Existing Lakes reach in the pre-project
conditioa The post-project condition shows an n-value of 0.03 for portions o£the middle of the ponds,
but does not justify how the roughness is reduced by project activities.
i. Public Works agrees that the roughness should be increased in the vicinity of the weirs due to the
presence of proposed erosion protection Features,and due to potential turbulence associated with
the weirs (lateral contraction,vertical contraction, flow mixing,etc.). It may also be justifiable to
reduce ihe n-values slight[y around the shoreline of the lake (above the operating WSEL)to
account for potential maintenance activities on the lakeshore. However, the decrease in n-value
for the middle of ihe ponds is not justified.
ii. Please revise n-values for the Exis[ing Lakes reach of the proposed conditions model. Provide
documentation to suppoR n-values selected for the study reaches.
d. l'here is some re-grading that has occurred at XS 56555 and XS 56386(bounding sections for WCR 13)
from pre-project to post-project conditions. The report text does not indicate this difference in cross
section geometry. Please revise sections for consistency with pre-project conditions, or provide
documentation for the difference.
e. Why does XS 69640 appear in the Existing Lakes reach of the post-project model,but does not appear in
the pre-project model? Both models must have ihe same sections at the same locations, as per FEMA
regulations. Please correct for consistency and compliance.
E Existing conditions lateral weirs have a weir coefficient of 2.5. Proposed weirs have a coefficient of 2.6.
The please explain how both numbers were determined,and provide documentation supporting those
determinations. Please justify the difference in values from pre-project conditions to post-project.
4. 1-ft Floodway HEGRAS Model Comments:
a. A negative nse is no[acceptable. Please revise the 1-ft floodway at XS 70580 to remove the -1.6 ft rise.
b. ls the 1-ft floodway based on pre-or post-project conditions? The title in the plan window says it is pre-
project,but should be post-project. Please correct.
c. The 1-ft floodway model cannot neglect the split flow reach(Existing Lakes). There is a cleaz 100-yeaz
flow path into this reach by lateral discharge,between the ponds over the inline weir,and out of the reach
through the inline return weic This flow path must be represented inside the floodway to secure a future
zone of conveyance for public safety that may not be encroached upon.
__ ._:... _ Page 2 of 3
i. Please revise the floodway boundary by shifting both floodway lines(left overbank and right
overbank)[o the north. The flow path through the Existing Lakes reach must be included as part
of the 1-fr floodway.
ii. The revised encroachments must be defined to remove equal conveyance on either side of the
channel, as per Method 4 requirements identified on Page 1Q 2"d sentence.
d. The Energy O�ly and Momentum low-flow methods were selected in the pre-project simulation for ihe
WCR 13 bridge. Please select the same methods for analysis on the WCR 13 bridge in the post-project
model for consistency.
5. Text Comments
a. Please correct the following spelling errors: rip-rap=riprap, in-effective=ineffective, and Hec-Ras=
HEGRAS.
b. Please add brief discussion of why the 1 c£s of discharge must be applied to the Existing Lakes reach of
die HEGRAS models in the boundary conditions file.
c. Please add detail to the description of the `butlet structure" for the ponds identified on Page 4, Chapter
VII,2i°sentence. How is ihe last volume of flow in the pond emptied from the pond afrer the peak flow
has passed?
d. Remove the word"effective"from Page 4, Chapter VIII, First sentence. The hydraulic models and maps
submitted for this CLOMR are no[the current effective models approved by FEMA.
e. Please speciFy units on the friction slope(fUft) identified on Page 4,Chapter VIII,4'�pazagraph.
f. Please remove the fo]]owing statement from Page 7, 5'"paragraph, 3`d sentence, until a correct analysis
can prove othenvise: ". . . the proposed grading north of the berm will have no eJfect on the l00-year
flnodplain."
i. In the same paragraph,remove the following statement: "The proposed grading will regulate the
guantiry offlow that overtops the berm and will keep this qunntiry offlow at pre-conditions
level." This statement is untrue, as the discharge in the Existing Lakes reach is different between
pre- and post-project conditions in the models.
g. Page 1 i,Chapter IX, 1"sentence—what does "due to minor pre project and post-project conditions"
imply?
h. Page 11,Chapter XII, 2°d sentence—what does "mitigated the existing floodplain"imply?
i. Page 11, Chapter XII, 2"°paragraph—"tailwater effects"is the wrong terminology to apply to the choice
of downstream boundary condition. Please reword for accuracy.
j. Please add the HEGRAS Hydraulic Reference Manual (HEC 2002) to the list of references.
The applicant shall address the comm��ts lisled atiovQ. The review proce8s�ryatl co4tinne,wh�n.a�lapproprnate
elements have been submitted:'Any issves ofcaEneeii�ii'must b'e resolved�w+t�tJt��!,n�ilic Work§Depar.ttiiedf�'rior to
'• '�ap�roval of t6is CLOMT2. -
_ ._ ... _ Page 3 of 3
Carroll � Lange= �� � �I��
Professional Engineers 6i Land Sun�epors \I/
Lake�aood • Loveland • Winter Park
i
April 28, 2006
JN: 3559
Brian Varrella, PE
Weld County Public Works
1111 H Street
P.O. Box 758
Greeley, CO 80632-0758
Re: St. Vrain River Conditional Letter of Map Revision (CLOMR)
Dear Mr. Varrella:
Carroll & Lange, Inc. has reviewed your comments made in the memorandum dated
April 17, 2006. We have included these comments and offer our responses in bold.
1. Generai Comments
a. Please remove all unused plans and geometries from the HEC-RAS model
before final submittal.
Response: All unused plans and geometries have been removed from
the HEC-RAS modeL
b. Interpolated cross sections must either be replaced by actual cross
sections, or removed from the model. It would be acceptable to remove the
asterix (") from the cross section name and note in the description box that
the section was created using interpolation between Section X and
Section Y.
Response: The asterisk (") has been removed from the interpolated
cross-sections and a note has been added in the description box
indicating that it is an interpolated cross-section between the
appropriated sections.
c. Please choose another line color and/or line style for the existing FEMA
100-year Floodplain on all drawing sheets. The current line is difficult to
discern.
Response: The line color of the FEMA 100-year floodplain has been
revised to appear more apparent.
t65 Swth Union Blvd.,Suiee 156�Lakewood,Colorado 80228�.11ain(3031 98C-O200•Fax(303) 980-091 i
3995 Sou[h Linmin A�'enue.Sui[e 250�l.oveland.Colerade 80537�.\lain (?7�� 292-5635�Fas (970)292-5639�Dem'er Dir �3031 865-5088
4=Cceper Creek 1�ar.Sui�e 528� FDBcx 3345��^1in[e[Pa[k.Colurzdo 3J482-334��.Alain �9 h" �26-8100�Eax(970) 726-91J0•Dencer Uli- i3031 98�9b00
Brian Varrella, PE
Weld County Public Works
April 28, 2006
JN: 3559
Page 2
d. The section ID numbers do not correspond to main channel reach lengths in
the model. Please update section IDs for consistency with downstream
reach length.
Response: The section ID numbers have been revised to correspond
to the main channel reach lengths. The section IDs correspond to the
distance upstream from the confluence with the South Platte River.
e. Many warnings still exist within the model calling for more cross sections.
Please consider adding sections as appropriate.
Response: Four new cross-sections were added to the "I-25 to
Junction" reach, which is where many of' the errors were being
generated. The addition of these cross-sections eliminated many of
these errors.
2. Pre-Proiect HEC-RAS Model Comments
a. Why is the left overbank ineffective in cross sections downstream of 56386?
The bridge is overtopped on the left overbank in the 50-, 100-, and 500-year
models, and all downstream cross section left overbanks should be fully
effective for these sections unless a topographical feature exists to cause
ineffective flow.
Response: The left overbank ineffective area in the downstream cross-
sections from 56386 (56386 has been renumbered to 56290) has been
removed due to the bridge being overtopped in the 50-, 100-, and 500-
year models.
b. The upstream bridge face (BRU) section at WCR 13 shows ineffective flow
for the 50- and 100-year profiles. The roadway is clearly overtopped and
overtopping flow is calculated (correctly) for both of these profiles. The
ineffective flow elevation at the upstream face of the bridge shou�d be
adjusted for consistency.
Response: The ineffective flow elevation at the upstream face of the
bridge has been adjusted for consistency.
Brian Varrella, PE
Weld County Public Works
April 28, 2006
JN: 3559
Page 3
c. XS 70645 shows both overbanks convey water in the 100- and 500-year
simulations. The work maps show both overbanks are dry. Please correct
the model or the work maps for consistency.
Response: The south side of the existing frontage road at I-25 wili
have shallow ponding due to ineffective flow. This can be seen in the
pre-project model at cross-section 70770. This presence of water will
not occur on the north side of the frontage road at I-25 due to the left
overbank of the river upstream of the frontage road being at an
elevation of 4,836 feet. The 100-year floodplain elevation is
approximately at 4,833 feet and therefore does not make it over this
berm. The elevation of I-25 is at approximately 4,843 feet in this area
and therefore there is no effective flow conveyance in either the pre-
or post-project models.
d. Please correct the ground at XS 69494 (Existing Lakes reach) to match the
topography shown in the work maps.
Response: The topography for XS 69494 (renumbered to XS 70493)
has been revised.
e. Please remove XS 68595 from the work map if it is not included in the HEC-
RAS models.
Response: XS 68595 (renumbered to XS 69741) is present in both the
pre- and post-project mode�s.
f. Please represent the actual location of the latera� weirs on the work maps
where the overtopping crest is located. Most of them are shown about 10 to
50 ft north of the overtopping section on the work maps.
Response: The riprap areas represent the actual location of the lateral
weirs on the workmaps. Late�al weir 4 will be removed during the
post-project condition. The flow rate from this weir will be added into
the flow on the other weirs.
g. Page 7 of the CLOMR text makes the following statement about the split
flow (Existing Lakes) reach: "Although our HEC-RAS model includes a
lateral weir with split flow analysis in fhe north overbank (exsting lakes)
area, we are projecting the floodplain elevations associated with the main
river channel for this area. This conservative assumption eliminates a levee
Brian Varrella, PE
Weld County Public Works
April 28, 2006
" JN: 3559
Page 4
effect for the existing embankment." This is conservative with respect to
preserving the embankment, but is not conservative with respect to WSEL
and floodplain/floodway delineation.
Response: See the response to the next comment.
i. This is not an appropriate application of the split Flow features of HEC-
RAS. The lateral weir function is designed to allow the split flow reach
to operate semi-independently of the adjacent river, and for the main
channel and adjacent split flow ponds to have different WSELs. Please
do not project floodplain elevations from the main channel into the split
flow reach.
Response: The floodplain elevations have been revised so that
they represent the elevations associated with the correct reach
and not projected from the main river.
ii. The proposed WSEL in the first pond is identified as 4819.0 ft-NAVD.
This WSEL should also represent the approximate still-water elevation
of the blocked obstructions representing ponds throughout the study
reach. Please revise the Existing Lakes reach of all models to
represent this WSEL for the upper pond, and a similar WSEL for the
lower pond. Please indicate the appropriate operating WSEL for the
lower pond on the work maps.
Response: The proposed permanent WSEL of the first lake is to
be 4,819.0 feet. However, during the 100-year flood, this wili fill
up to the proposed spillway elevation of 4,824.0 feet It is
understood that this high water surface elevation is the WSEL
that is of importance in regards to this CLOMR report and
therefore the WSEL shown on the plan has been revised.
h. Any and all cross sections inside defined zones of ineffective flow must
have increased expansion and contraction coefficients. This includes
ineffective flow caused by bridge embankment and topographical features.
Please refer to the HEC-RAS Hydraulic Reference Manual, Chapter 5,
Table 5.2 for appropriate values of contraction and expansion coefficients.
Response: The expansion and contraction coe�cients have been
revised in the areas of ineffective flow.
Brian Varrella, PE
Weld County Public Works
, April 28, 2006
JN: 3559
Page 5
3. Post-Proiect HEC-RAS Model Comments
a. Please appiy pre-project comments to the post-project model, where
applicable.
Response: The applicable comments have been addressed on both
the pre- and post-project models.
b. The description box in the Plan Window indicates the model represents pre-
project conditions. Please revise the description for the post-project
condition.
Response: The description box has been revised.
c. A Manning's-n value of 0.04 was applied to the ponds of the Existing Lakes
reach in the pre-project condition. The post-project condition shows an n-
value of 0.03 for portions of the middle of the ponds, but does not justify
how the roughness is reduced by project activities.
Response: The post-project Manning's n-value for the middle of the
ponds has been revised to 0.04.
i. Public Works agrees that the roughness should be increased in the
vicinity of the weirs due to the presence of proposed erosion protection
features, and due to potential turbulence associated with the weirs
(lateral contraction, vertical contraction, flow mixing, etc.). It may also
be justifiable to reduce the n-values slightly around the shoreline of the
lake (above the operating WSEL) to account for potentiai maintenance
activities on the lakeshore. However, the decrease in n-value for the
middle of the ponds is not justified.
Response: The decrease in n-values for the middle of the ponds
in the post-project model has been removed. The shoreline n-
values in the post-project model was reduced from 0.07 to 0.035
to account for maintenance and improvement activities.
Brian Varrella, PE
Weld County Public Works
April 28, 2006
JN: 3559
Page 6
ii. Please revise n-values for the Existing Lakes reach of the proposed
conditions model. Provide documentation to support n-values selected
for the study reaches.
Response: Documentation in support of n-values has been
provided in Appendix A.
d. There is some re-grading that has occurred at XS 56555 and XS 56386
(bounding sections for WCR 13) from pre-project to post-project conditions.
The report text does not indicate this difference in cross section geometry.
Please revise sections for consistency with pre-project conditions, or
provide documentation for the difference.
Response: This inconsistency has been corrected.
e. Why does XS 69640 appear in the Existing Lakes reach of the post-project
model, but does not appear in the pre-project model? Both models must
have the same sections at the same locations, as per FEMA regulations.
Please correct for consistency and compliance.
Response: XS 69640 (renumbered to XS 70673) had appeared in the
pre-project condition as an inline weir and in the post-project
condition model as a cross-section. This has been corrected so that
this cross-section appears in both models as an inline weir.
f. Existing conditions lateral weirs have a weir coefficient of 2.5. Proposed
weirs have a coefficient of 2.6. The please explain how both numbers were
determined, and provide documentation supporting those determinations.
Please justify the difference in values from pre-project conditions to post-
project.
Response: The weir coefficients have been revised to 2.63 for both the
pre- and post-project models. This value was taken from a chart in the
Handbook of Hydraulics (see the list of references for more
information) and has been provided in Appendix A for documentation.
Brian Varrella, PE
Weld County Public Works
April 28, 2006
� JN: 3559
Page 7
4. 1-ft Floodwav HEC-RAS Model Comments
a. A negative rise is not acceptable. Please revise the 1-ft ffoodway at XS
70580 to remove the-1.6 ft rise.
Response: The removal of a negative rise at this XS was unattainable.
However, it was revised to only a negative rise of - 0.3 feet. An
asterisk was added to the table for this cross section and justification
for the negative rise was added below the table.
b. Is the 1-ft floodway based on pre- or post-project conditions? The title in the
plan window says it is pre-project, but should be post-project. Please
correct.
Response: The previous floodway analysis had been on the pre-
project condition, but this was revised and the current floodway
analysis is on the post-project model.
c. The 1-ft floodway model cannot neglect the split flow reach (Existing Lakes).
There is a clear 100-year flow path into this reach by lateral discharge,
between the ponds over the inline weir, and out of the reach through the
inline return weir. This flow path must be represented inside the floodway to
secure a future zone of conveyance for public safety that may not be
encroached upon.
Response: The Floodway model and the encroachment limit line have
been revised to represent the flow path to be maintained in the
"Existing Lakes" reach.
i. Please revise the floodway boundary by shifting both floodway lines
(left overbank and right overbank) to the north. The flow path through
the Existing Lakes reach must be included as part of the 1-ft floodway.
Response: See previous response.
ii. The revised encroachments must be defined to remove equal
conveyance on either side of the channel, as per Method 4
requirements identified on Page 10, 2n° sentence.
Response: The encroachment limit has been revised. When the
main river channel is encroached upon, the water surface is
Brian Varrella, PE
Weld County Public Works
April 28, 2006
JN: 3559
Page 8
raised and therefore more flow overtops the lateral weirs and
flows into the "Existing Lakes" reach. This increases the flow
rate in the "Existing Lakes" reach and therefore raises the water
surface level in this reach before any encroachment has been
applied. The revised encroachment limit line creates a condition
where both the north and south side of the river share the
encroachment and maintain both sides to be developable.
d. The Energy Only and Momentum low-flow methods were selected in the
pre-project simulation for the WCR 13 bridge. Please select the same
methods for analysis on the WCR 13 bridge in the post-project modei for
consistency.
Response: The same modeling methods have been chosen for both
models.
5. Text Comments
a. Please correct the following spelling errors: rip-rap = riprap, in-effective =
ineffective, and Hec-Ras = HEC-RAS.
Response: These spelling errors have been corrected.
b. Please add brief discussion of why the 1 cfs of discharge must be applied to
the Existing Lakes reach of the HEC-RAS models in the boundary
conditions file.
Response: Discussion has been added to the Basin Hydrology
section.
c. Piease add detail to the description of the "outlet structure" for the ponds
identified on Page 4, Chapter VII, 2"d sentence. How is the last volume of
flow in the pond emptied from the pond after the peak flow has passed?
Response: Discussion has been added to this paragraph to describe
the workings of the outlet structure.
d. Remove the word "effective" from Page 4, Chapter Vlil, first sentence. The
hydraulic models and maps submitted for this CLOMR are not the current
effective models approved by FEMA.
Response: The word "effective" has been removed from the sentence.
Brian Varrella, PE
Weld County Public Works
April 28, 2006
JN: 3559
Page 9
e. Please specify units on the friction slope (ft/ft) identified on Page 4,
Chapter VIII, 4�h paragraph.
Response: The units of(ff/ft) have been specified.
f. Please remove the following statement from Page 7, 5`h paragraph, 3`d
sentence, until a correct analysis can prove othenvise: "...the proposed
grading norfh of the be�n will have no effecf on the 100-year floodplain."
Response: This sentence has been removed.
i. In the same paragraph, remove the following statement: "The
proposed grading will regulate the quantity of flow that overtops the
berm and will keep this quantity of flow at pre-conditions level." This
statement is untrue, as the discharge in the Existing Lakes reach is
different between pre- and post-project conditions in the models.
Response: This sentence has been revised to state, "The
proposed grading for the lateral weirs will regulate the quantity of
flow that overtops the berm and will keep this quantity of flow
above the flow rate which overtopped the berm during the pre-
project condition."
g. Page 11, Chapter IX, 15t sentence — what does "due to minor pre-project
and post-project conditions " imply?
Response: This was an incomplete sentence and has been revised to
state, "The 100-year floodplain elevations change very little between
the Pre-Project conditions model and the Post-Project conditions
model in the river reach of the St. Vrain River due to minor
topographic changes between pre-project and post-project
conditions."
h. Page 11, Chapter XIi, 2"d sentence — what does "mitigated the existing
floodplain" imply?
Response: This was incorrect wording. The sentence has been
revised to state, "The improved drainage features will convey a
portion of St. Vrain River flood through the proposed site by the
effective use of emergency overflows into and out of the existing
lakes."
Brian Varrella, PE
Weld County Public Works
April 28, 2006
J N: 3559
Page 10
i. Page 11, Chapter XII, 2"d paragraph — "tailwater effects" is the wrong
terminology to apply to the choice of downstream boundary condition.
Please reword for accuracy.
Response: The wording "tailwater effects" has been revised to state,
"The limits of this study extend beyond the limits of proposed
construction to correctly model the downstream boundary condition
of the St Vrain River."
j. Please add the HEC-RAS Hydraulic Reference Manual (HEC 2002) to the
list of references.
Response: The HEC-RAS Hydraulic Reference Manual has been added
to the list of references.
Should you have any questions or additional comments, please feel free to contact us
at any time.
Sincerely,
CARROLL & LANGE, INC.
�( �
Kevin Jennings, EI
Engineer II
cl
Enclosures
cc: E / R
XVI. Conditional Letter of Map Revision (CLOMR)
Application Forms
,
;
FEDERAL EMERGENCY MANAGEMENT AGENCY O.M.B No.3067-0148
OVERVIEW & CONCURRENCE FORM ExpiresSep�emberJQzoos
PAPERWORK BURDEN DISCLOSURE NOTICE
Public reporting burden for this (orm is estimated to average t hour per response. The burden estlmate includes the time for reviewing instructions,
searching existing data sources,gathering and maintaining the needed data,and completing, reviewing, and submitting the form. You are not required
to respond ro this collection of information unless a valid OMB control number appears in the upper nght corner of this form. Send comments regarding
the acwracy of the burden estimate and any sug9estions for reducing this burden to: Information Collections Management, Federal Emergency
Management Agency, 500 C Street, SW, Washington DC 20472, Paperwork Reduction Project (3067-0148). Submission of the form is required to
obtain or retain benef ts under ihe National Flood insurance Program. Please do not send our com leted surve to the above address.
A. REQUESTED RESPONSE FROM FEMA
This request is for a(check one):
� CLOMR: A letter from FEMA commenting on whether a proposed project,if built as proposed,would justiry a map revision,or
proposed hydrology changes(See 44 CFR Ch. 1, Parts 60,65&72).
❑ LOMR: A letter from FEMA o�cially revising the current NFIP map to show the changes to floodplains,regulatory Floodway or flood
elevalions. (See Parts 60&65 of the NFIP Regulations.)
B. OVERVIEW
7. The NFIP map panel(s)affected for all impacted communities is(are):
Communi No. Communi Name State Ma No. Panel No. Effective Date
Ex:480301 City of Katy TX 480301 0005D 02/08/83
480287 Harns Coun TX 48201C 0220G 09/28/90
�266 Weld County CO 080266 0SSSC 9/28/82
266 Weld Counry CO 080266 0850C g/28/82
2. Flooding Source:SL Vrain River
3. Project Name/Identifier SL Vrain Lakes
4. FEMA zone designations affected:A (choices: A,AH,AO,A1-A30.A99,AE,AR,V,V1-V30,VE, B,C,D,X)
5. Basis for Request and Type of Revision:
a. The basis for this revision request is(check all that apply)
� Physical Change ❑ Improved Methodology/Data
❑Regulatory Floodway Revision ❑ Other(Attach Descnption)
Note: A photograph and narrative description of the area of concern is not required,but is very helpful during review.
b. The area of revision encompasses the following types of flooding and structures(check all that apply)
Types of Flooding: � Riverine ❑Coastal ❑ Shallow Floodin
g(e.g.,Zones AO and AH)
❑Alluvial fan ❑ Lakes ❑ Other (Attach Descnption)
Structures � Channelization ❑ Levee/Floodwall
❑ Bridge/Culvert
❑ Dam ❑ Fill ❑Other,Attach Description
FEMA Form 81-89,SEP 02 Overview 8 Concurrence Form MT-2 Form 1 Page 7 0(2
3���: � L
C. REVIEW PEE '
� Has the review fee for the appropriate request category been included? � Yes Pee amount: $4 000
� ❑ No,Attach Ezplanation
r.case see the FEMA Web site at http://www.fema.gov/miUtsd/frm fees.htm for Fee Amounts and Exem tions.
D. SIGNATURE
All documenls submitted in support of this request are correct to the best of my knowledge. I understand that any false statement may be punishable
by fine or imprisonment under Tille 18 of the United States Code, Section 1001.
Name: Tyler Packard Company: Carma Colorado Inc
Mailing Address� Daytime Telephone No.: Fax No.:
9710 E. Nichols Avenue,Suite 180 (303)706-9451 (303)70&9453
Englewood,CO 801�2
E-Mail Address: tpackard@carma.ca
Signature of Requester(re ' Date:
2� �
As the community official responsible for floodplain management, I hereby acknowledge that we have received and reviewed this Letter of Map
Revision(IOMR)or conditional LOMR request. Based upon the community's review,we find the completed or proposed project meets or is designed
lo meet all of ihe community Floodplain management requirements,including the requirement that no fill be placed in the regulatory Floodway,and that
all necessary Federal,State,and local permits have been,or in the case of a conditional LOMR,will be obtained. In addition,we have detertnined that
fhe land and any existing or proposed structures to be removed from the SFHA are or will be reasonably safe from flooding as defined in 44CFR
65.2(c),and Ihat we have available upon request by FEMA,all analyses and documentation used to make�his determination.
Community Official's Name and TiNe: K�nr6�la(}�uG �aUe!' � ?elephone No.:
� (970)353-6100
r 7unity Name: Weld Counry Co ity Official' SignaWr equired�: Date:
.
, S3O
CERTIFICATION BY REGISTERED PROFESSIONAL ENGINEER ANDIOR LAND SURVEYOR
This certification is to be signed and sealed by a licensed land surveyor,registered professional engineer,or architect authorized by law to certify
elevation information. All documenLs submitted in support of ihis request are corzect to ihe best of my knowledge. I understand ihat any false
statement may 6e punishable by fne or imprisonment under Title 18 of the United States Code, Section�00'I.
Certifiers Name: Fred Tafoya license No.: 30446 Expiratlon Date:
0531-2007
Company Name: Carroll&Lange, Inc. Telephone No.: (303)980-0200 Fax No.:
(303)980-0917
Signature• ` Date: /
✓�.+t, =� SlY/ a 6
Ensure the forms that are appropriate to your evision request are included in your submittal.
Form Name and INumberl Reauired if... E�F�+
Q,,d�°...,, as.*
� Riverine Hydrology and Hydraulics Form(Form 2) New or revised discharges or water-surface elevations O.���.TA FO`c�`,�
❑ Riverine Structures Form(Form 3) Channel is modified,addition/revision of bridge/culverts, �,�' ��d
additionlrevision of levee/floodwall,additioNrevision of dam l LL �,4� ��
, '•,I
� Coastal Analysis Form(Form 4) New or revised coastal elevations ,'. 4" Y •6 •
. / , ,�
, ioastal Siructures Form(Form 5) AdditioNrevision of coastal sWcWre
❑ Alluvial Fan Flooding Form(Form 6) Flood conhol measures on alluvial fans
FEMA Form 81-89,SEP 02 Overview&Concurrence Form MT-2 Form 1 Page 2 0(2
FEDERAL EMERGENCY MANAGEMENT AGENCY O.M.B No.3067-0748
RIVERINE HYDROLOGY & HYDRAULICS FORM ExpiresSeptember30,zoos
PAPERWORK REDUCTION ACT
Public reporting burden for this form is estimated to average 3 hours per response. The burden estimate includes the time for reviewing instructions,
searching existing data sources, gathering and maintaining ihe needed data, and compleling, reviewing. antl submitting the form. You are not
required to respond to this collection of information unless a valid OMB control number appears in the upper right corner of this form. Send
comments regarding the accuracy of the burden estimate and any suggestions for reducing this burden to: Information Collections Management,
Federal Emergency Management Agency, 500 C S[reet, SW, Washington DC 20472,Paperaork Reduction Project(3067-0748). Submission of the
form is required to obtain or retain benefits under the Nationai Flood Insurance Program. Please do not send your completed survey to the
above address.
Fiooding Source: St.Vrain River
Note: Fiil out one form for each flooding source studied
A. HYDROLOGY
1. Reason for New Hydrologic Analysis (check all thaf apply)
� Not revised(skip to section 2) ❑ No existing anatysis ❑ Improved data
❑ Alternative methodology ❑ Proposed Conditions(CLOMR) ❑ Changed physiral condition of watershed
2 Companson of Representative 1%-Annual-Chance Discharges
Location Drainage Area(Sq. Mi.) FIS(cfs) Revised(cfs)
Methodology for New Hydrologic Analysis (check all that apply) .
❑ Statistical Analysis of Gage Records ❑ Precipitation/Runoff Model (fR-20,HEC-1, HEC-HMS etc.]
❑ Regional Regression Equations ❑ Other(please attach description)
Please enclose all relevant models in digital fortnat,maps, computatlons(including computation of parameters)and documen(ation to support
the new analysis. The document,"Numerical Models Accepted by FEMA for NFIP Usage"lists the models accepted by FEMA. This document
can be found at: http>/www fema.gov/miUtsd/en_modLhtm.
4. Review/Approval of Analysis
I(your community requires a regional,state,or federal agency to review the hydrologic analysis,please attach evidence of approval/review.
5. Impacts of Sediment Transport on Hydrology
Was sediment transport considered? ❑Yes ❑ No If yes,then fill out Section F(Sediment Transport)of Form 3. If No,then attach
your explanation for why sediment transport was not considered.
B. HYDRAULICS
1. Reach to be Revised
Description Cross Section Water-Surface Elevations(ft.)
Effective Proposed/Revised
Downsiream Limit Fully effective downstream of 52370 4799.35 4799.35
WCR13 brdg
Upstream Limit Downstream edge of I-25 71770 4830.06 4830.06
Frontage Bridge
.� Hvdraulic Method Used
Hydraulic Analysis HEC-RAS[HEG2, HEC-RA5,Other(Attach description)]
FEMA Form 81-89A, SEP 02 Riverine Hydrology&Hydraulics Form MT-2 Form 2 Page 1 of 2
B. HYDRAULICS(CONTINUED)
3. Pre-Submittal Review of Hvdraulic Models
FEMA has developed two review programs, CHECK-2 and CHECK-RAS, to aid in the review of HEG2 and HEC-RAS hydraulic models,
respectively. These review programs verify that the hydraulic estimates and assump[ions in the model data are in accordance with NFIP
�� requirements,and that the data are comparable with the assumptions and limitations of HEG2/HEC-RAS. CHECK-2 and CHECK-RAS identify
� areas of potential ertor or wncem. These tools tlo not replace engineenng judgment. CHECK-2 and CHECK-RAS ran be downloaded from
http>/www.fema.gov/mib'tsd/frm soft.him. We recommend that you review your HEC-2 and HEGRAS models with CHECK-2 and CHECK-
RAS. If you disagree with a message, please attach an explanation of why the message is not valid in this case. Review of your submittal and
resolution of valid modeling discrepancies wili result in reduced review time.
HEC-2lHEC-RAS models reviewed with CHECK-ZCHECK-RAS? � Yes ❑ No
4. Models Submitted
Duplicate Effective Model' Natural File Name: Floodvray File Name:
Corrected Effective Model' Naturdl File Name: Ploodway File Name:
Existing or Pre-Project Conditions Model Natural File Name: Pre Project Plan Floodway File Name: Post Floodway
Revised or Post-Project Conditions Model Natural File Name: Post Project Plan Floodway File Name:
Other-(attach description) Natural File Name: Floodway File Name:
'Not required for revisions to approximate 1°/a-annual-chance floodplains(Zone A)—for details,refer to the corresponding section of the instructions.
The document "Numeriral Models Accepted by FEMA for NFIP Usage" lists ihe models accepted by FEMA. This document can be fountl at:
http:/lwww.fema.gov/mit/isd/en_modl.htm. -
C. MAPPING REQUIREMENTS
A certified topographic map musl be submitted showing the following infortnation(where applicable):the boundanes of the effective,ezisting,and
proposed conditions 1%-annual-chance floodplain (for approximate Zone A revisions) or the boundaries of the 7%- and 02%a-annual-chance
floodplains and regulatory Floodway(for detailed Zone AE,AO,and AH revisions);location and alignment of all cross sections with statloning control
indicated; stream, road, and other alignments (e.g., dams, levees, etc.); current communiry easements and boundaries; boundaries of the
requester's property; certification of a registered professional engineer registered in ihe subject State; location and descnption of reference marks;
and the referenced vertical datum(NGVD, NAVD,etc.).
Note that the boundanes of the existlng or proposed conditions floodplains and regulatory floodway to be shown on the revised FIRM and/or FBFM
must lie-in with the effective Floodplain and regulatory Floodway boundaries. Please attach a copy of the effective FIRM and/or FBFM, annotated
� show the boundaries of the revised 1%- and 0.2%-annual-chance Floodplains and regulatory floodway that tie-in with lhe boundaries of the
;ffective 1°/-and 02%-annual-chance floodplain and regulatory floodway at Ne upstream and downstream limits of the area of revision.
D. COMMON REGULATORY REQUIREMENTS
1. For CLOMR requesGs,do Base Flood Elevations(BFEs)increase? ❑Yes � No
For CLOMR requests, if either of the following is true,please submit evidence of compliance with Section 65.12 of the NFIP regWations:
. The proposed project encroaches upon a regulatory Floodway and would result in increases above 0.00 foot.
. The proposed project encroaches upon a SFHA with BFEs established and would result in increases above 1.00 foot.
2. Does the request involve!he piacement or proposed placement of fill? � Yes ❑ No
If Yes, Ne community must be able to cerlity that the area to be removed 6om the special flood ha�ard area, to include any structures or
proposed structures, meets all of the standards of lhe local floodplain ordinances, and is reasonably safe from flooding in accordance with the
NFIP regulations set forth at 44 CFR 60.3(a)(3),65.5(a)(4),and 65.6(a)(14). Please see the MT-2 insWclions for more infortnation.
3. For LOMR requests,is the regulatory floodway being revised? ❑ Yes ❑ No
If Yes,attach evidence of regulatory floodway revision notification. As per Paragraph 65.7(b)(1)of the NFIP Regulalions,notification is required
for requesLs involving revisions to the regulatory Floodway. (Not required for revisions to approximate 1°/-annual-chance floodplains(studietl
Zone A designation]unless a regulatory floodway is being added. ElemenLs and examples of regulatory floodway revision notification can be
found in the MT-2 Form 2 Instructions.)
4. For LOMR requesLs,does this request require property owner notlfication and acceptance of BFE increases? � Yes ❑ No
If Yes,please attach proof of property owner notification and acceptance (if available). Elements of and examples of property owner notification
can be found in the MT-2 Form 21nsWctions.
FEMA Form 81-89A,SEP 02 Rivenne Hydrology&Hydraulics Form MT-2 Form 2 Page 2 of 2
Carma (Colorado) Inc. Check Date: 11/3/2005 Check No: 00210
Voucher Invoice No Description Invoice Date Invoice Amount Discount Amount Paid
005480 CLOMR APP FE 10/26/2005 4, 000 .00 0 . 00 4, 000. 00
i
t
Check totals: . 4,000.00
Payee�: - FEiQA . � Vendor: 00574H� -. Check. No:� . 002102
*�k
��w^•-•, , � ' e��� � _ic � s r. _. .
� � • •' • : '• • • � • �� �.�
cS�q ._ ... � . _ ' •
_ ;�� . _ . �.V 'k..• � ��;c".f1 : rf. � ':,� Y� i.
.e:.�j C;��"(ET�'d ��d�.OT'dCID��� ZiYC�'. � . 'fi+�r�
. � � � Suite 180, 91�0 .� Nuchols Ave, , � .. ,:, `.,, ��
- Englewopd, CO tl{71Y2. ` � [ �, ��r ' , '
� - � .�- -� � �} "' ''� y�',,:-, nF � i' '�`b,�,k� .r�' r� �:� .�''=
compaes eawc , Chg�,�C Date Check No Check Amount
EI0Q E Arapahoe Rd. � .
?inglewood, Co eoll2 ' � : �at�1�3 �005 002102 ***+
. . c�°' $4,000.00
Four Thoti6�nd':any� Ob/Tb4--.----�--.-- -- --:-;.--------------------------- US Dollars
� �� .. .�. Per: � l/ 'ii !
i r',' i
1,�
FEMA
_.,,�� PO BOX 3173 � � ��
Per: +
°P MERRIFIELD, VA 22114. �.i , � � � �! �� p; °� �
. . . . i�: . .����Y��
, � � ��� .0;;1 ,r ;���� . � :
��'00 2 �0 2ii' �: LO 700 5 3 i 9i: 2 50088 5 58 3ii'
FEDERALEMERGENCY MANAGEMENT AGENCY
PAYMENT INFORMATION FORM
�ommunityName: WeldCounty
Project Identifier: Bayshore
THIS FORM MUST BE MAILED,ALONG WITH THE APPROPRIATE FEE,TO ONE OF TWO POST OFFICE BOXES (SEE BELOW)OR FAXED TO
THE FAX NUMBER BELOW.
Type of Request:
MT-1 application fee 1
MT-2 application fee f Onsert 3173 as the P.O. Box number in the address below)
External Data Requesis(EDRs) pnsert 398 as the P.O. Box number in the address below)
Pederal Emergency Management Agency
Revisions Fee-Collection System Administrator
P.O.Box 3173 �
Merrifield.Virginia 22116
Fax: (703)849-0282
Request No.: B06080'IS(if known) Amount: $4,000
❑ INITIAL FEE' ❑ FINAL FEE ❑ FEE BALANCE" ❑ MASTER CARD ❑ VISA � CHECK ❑ MONEY ORDER
`Note: Check only for EDR and/or Allwial Fan requests(as appropnate).
`Note:Check only if submitling a corrected fee for an ongoing request.
� MPLETE THIS SECTION ONLY IF PAYING BY CREDIT CARD
EXP.DATE
1 2 3 4 5 6 7 8 9 10 11 12 13 74 15 16 Month Year
CARD NUMBER
Da[e Signature
NAME(AS IT APPEARS ON CARD):
(please print or type)
ADDRESS:
(for your
credit card
receipt-please
pnnt ar type)
DAYTIME PHONE:
FEMA Form 81•107, Payment Information Form
APPENDIX A— Hydraulic Analysis
Pre-Project Conditions Model (NAVD 88 Datum)
with CHECK-RAS output
Pre & Post Construction Model Plan: Pre Project Plan 5/4/2006
' 71770 Legend
i
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711 �ny t- ... 77254 WS 100 year
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707
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69 -- 't.:.: �, O
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EXISTINGW(ES ]1599 SOyex 1.00 CB2I20 CB2]80 p62JB0 0.000000 000 5�2.J] 91866 000
E%ISTINGLAKES ]1254 f00year 100 <82]20 OB18.58 d83B58 O.WOWO 0.00 4]dSJ 9Jd.K 000
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EkISTINGLAI(ES ]1250 t0yp2� 100 682>2o aB2U6 E82J]9 OWJOW 000 515)l 921.99 000
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E%ISi1NGlAKES 10880 59yxx 100 a82).3o a82I.80 682].22 aB2]80 0.000000 000 fi58<9 10993� 000
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EXISTINGIAKES �(119] t0ym� 1.00 182].60 dB2])B CB2)]B 0000000 001 1919] 11N.]2 0.00
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E%ISTINGUIKES T.If�t 1Wym 518]0 <82]fi0 082B.CJ <828.4] O.OOOIBB 0.10 1185.BJ 1368.61 O.OB
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FXISTINGIAKES � 69J1/ Spp 9916.1] C819.50 4825.92 C82593 Od00Q52 0.91 9%3.52 15BC.98 O.Ofi
E%ISTINGLAKES �10 10ym 100 a81950 <819.60 <91960 O.OOOOpt 001 1<9.1U 1tW.H 0.00
FJ(ISIINGW(ES 6&114 � 50.yvx �� 121 091950 C819.95 a819.A5 O.OOOWO OOU 6J1.90 1<98.SC O.Op
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EXISIINGLAI�5� ��66i88 YOyYEr 1.00 JB1950 4919fA C819.80 OOOOOf2 0.% 99.W 10pJ.J4 001
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EXISTNGlAKE5�� B]5/9 �.100yxat 5C95] d619.50 dB210] <021U] O000052 0]S 1553.03 fON.Jfi 005
FXISTINGLAKES - 8/5/B. 500yea 1229186 CB1950 i925.51 0025.5] O00028] 1.95 628]]] 1089.]I 0.1�
FXISTNGIAKES 8I5/8 10ylv 100 <81950 G919C-0 <919.60 O000002 0.01 9]Al 1W].55 0.01
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I-25.bJiMbn ➢Hfi8 SOyear 12&SOW C81820 <829.41 082C39 /029]9 O000969 5.18 ]]]800 2052.]B 029
1-25:bJUnc4pn ]Ql29 100.-' 1629150 <BiB25 d82B.38 482]29 482995 0.00195] i.06 J]39.98 31&5.58 001
1-25bJu�ctiq� ]Q28. SW'ytier� 351]Bfi] <81825 C�1.86 4929.6J 08J2.95 OOdl01] 1026 5555.92 2286.60 OS]
1-SroJUxlpn �� ]QJ18- 10yT.V�. 5950.00 i81825 4B2618 48II.6I 6021W OW12]d lG] 1810.35 168029 0]t
625roJurcttm � ]0I28 50 � 13d50.W J61845 aeze.bs A82595 d029.18 0001)Sd 6]9 332019 212]2] OJ9
125roJweYpn ]OSBC LaI5Wtl
; 1.25bdvpEan ]d2]5 �1pp � � 1619021 4911A0 <028.fi5 6026.]9 CB289B 000151/ 6.W 1881]] 2039.00 03fi
I-251oJumXM ]0235 � SOOyeY� IIfil6.5] dB1140 C030.9d CO2].Y1 4fl91A] 0001898 ]90 )1it]C 212100 002
F15bJunctlon POZf5 10yCer� � 5950.00 d01iC0 J81fi25 d�B9 CB26<l 0.0010'H Ud 25]�.59 152<.90 029
� I-251odmc4an �]OZl5 50ypar. 128C980 4B1]00 C820.01 4025.92 dB28]0 0.001]91 519 0263.]3 20U]05 O.Jd
I-25bJrvclbri �C1 iWyla,- Ifi182.]0 d81fi0.5 <82i81 CBZfid5 4820]6 aooma 639 St25.55 19}225 099
I-25bJunctlon B9lH 500yeY� I]010.88 4B1fi0.5 4@9.B] 4821.fi3 d8]001 OW2]02 BA] P21.P 199]Ot O<6
L25bJunclbn 6%)N t0year 595000 <B1645 4825.50 C072.59 <825)B 0.001503 109 2321.11 1)BB.JJ Ol5
I-25bJmetim �]M SOyOer 4&9)9 CB1fiC5 CB2T21 C@5J6 6B2].SJ 0.001fi99 5.95 439389 1891.]fi 038
I-ZSbJuncUort �69359 la�So-uct
425bder.tian fi9N9 100yq 1618230 E0f560 dffi6.8] dP8.fi3 C@]29 0.002M0 692 SOB]A9 18]65B pH
4Z$bJ�vMlb11 69283 50pyear��.� ]2]05.91 J015fA <BLB.I4 GB2].0/ OB2931 OWi53] BBt 'l110]9 1IC825 008
L25bJunctlon 89293 10� 595000� <81580 d8201C 6821J4 4020.90 O.Wi1J2 591 1161.% 40025 O.H
I-L5yJwwtion fi92W 50 � 12&9J9 4915.60 48262d C825.26 482666 0.00205J fiW .HB1.45 1602d9 041
I-25bJu�Klipn fi9&4 , tOP � 1fi151A3 CBtd]5 OB25.82 <928.02 �.W21<3 I16 501988 181231 O<]
425bJun[tl�on 8891< SOR�" l96]9.1a 4814i5 082]]C 402824 0.0020]9 03C �01.W 1fi8�.10 �41
425bJun4tion 99646.' ' iQ��- 595000 0814I5 <B2]0] C823.93 0.002065 5.99 161i21 t�29.50 Oa0
F25bJurction 80&43 . �SO.ypy.. 12819]9 481i.15 <ffi5.2] C6L5.]2 0.00265J 8.98 4115.65 15B1_]9 0<3
615NJmv:11a� 89230� t00�eer[ 161516J JB10.00 i82<6] d02543 0.002019 1A 5�fi3.56 91LW 042
F25bJux.lion 80236 5ppy�[. 296i9.iC CB1000 0826>3 i82].13 0001]fifi B.N 91fi2.9] 1&1252 0�1
1-25bJulKtion fi�9C 1b. 5950.00 C81d00 a8]2.I1 <9I2.81 OOOt&59 5)B 211]2.85 1P19.69 0.]]
185bJun'Jbn BB23C� SUQear:"'�� 4909)9 IBiQ00 <B20.OB qffi950 O.OOZUZ6 129 dIfi9.16 ififi052 OC2
IQSbJuz�bn 8]6!t � �100yBx� 1615103 4B1].15 OBt361 692]98 0.002pJ1 B.BI 5505.]5 156145 OC1
L25bJiircYOn 6/821 50p: � ]95]g1C CB1345 ,ffi591 GB2614 O.W1)51 ].1P 9101.19 1683_99 0<0
L251oJurctlW 61fi24 tOyPe�• 5950.00 <B1JC5 <BN]9 <BT1S] QW1991 516 219t38 1]�.92 0.39
415bJunttiOn 8'IB]A 50y�gr t28CB]9 <81�.0.5 �B23.W C@3.JJ 0.002012 660 Cfi00.51 151fi9C O<1
4I5bJu�tion 614W La�5wct
M25bJunctian fi881< 10UyEs 1WR8] 6812&5 �812.TA CBY1.08 0.OO1fi20 SEJ fi0�/.61 151J.08 0]]
I-]SroJwwtlpn 68818 �SUp'�. � 2)OSB.11 4812.&5 <026.91 1815.01 0401056 5l0 10288.p2 1920.25 0.31
LY�bJ�mcWn 66810 10 SASOW C01285 CB]0.10 C930.3t O0015B8 OIO 2828.39 tiC0.35 035
1-Y5bJunctlon 68814 50� 12619)9 OB12fl5 08Y165 d931.B8 0.0p1815 SSB 5156A4 1552.fi3 OJI
FULLRIVER 65i35 tOp� i6]OO.pO C61195 <82U.09 0820A5 O0M]]C J]0 SB30.�] 1881 W Od8
:' FULLftIVEft 65]�5 SOpypy 9t96p.p0 CB1195 OBZ3.01 682].39 O.W139J 8.0.5 11J9].1J 2069�2 00]
FULLRIVER W%JS 10 �� 5950.0p CBfl.95 <91fl09 <810.]9 0002528 Sfi2 13]8d1 1]0)39 0.0]
FULLRIVER 85735 50 �N � 12fl5�.00 4B11.95 J819<B C919.& O00Y96B fi.89 0.5/219 1]SSd9 O<)
MEC-RNS Plaa Pre Pro�ecyConUnuM�
. ReaU Nivrr 5q Pmfile O Talal MIn C�FJ W S.Elev CM W.5. EG.Ekw E.G.Sbpe VN CMA Flaw fvea To0 W� FmuOe N C1�1
Insl (el (�I l�) IRl (nm) Wsl (wPl IXI
FUILRIVER 666W t00ypx 16)00.00 a8tOB5 <B1]95 dB18.09 OW1]fl5 54a 690599 1]BL0.5 a]B
FUILFIVER 8W0p SOOyea� <19fi000 <81085 OB305t <830J9 0.002605 935 10165A2 2645.10 O<B
FULLRIVER 6180J 10ypar 5950W C9W.A5 OBifiOfi <816]5 0.001109 11� ]586.69 1)35.SP 0]5
FULLftNER 60fi0p SOyear 11850.00 d810B5 IBt]35 �81]d> O.W1]92 i11 5BJJ.fi5 1]65.91 o.]]
FULLRIVER 61120 100yea� 16)0000 d8f020 <BI>.12 d815]2 49239 0.0020]fi 5)1 658B.B0 111<.9C O<OI
FULLRNER 6H2O 500yxar dt960pp IB10.10 �819.19 I018)6 aeiara 0002396 L66 4fi5d.]] ]5@21 O<6
FULLRNER 6U20 10year 595000 <81020 d915.P8 081<d0 I915J9 0001898 IJB ]J90.59 1fi91J0 0.]fi
FUILRIVER 60120 50 tIB50W <810�0 a818.Q <9150fi a816.62 O.W2D5 5.63 SH005 2112.56 O�I
FULLftNER GJ6,0 f00year 1fi�00.00 <909.55 1816.I9 I91065 G816/0 �.W19]6 5.1] fifi55.05 )120.�0 0]9
FULLRNER 63610 500 C1960.00 4909.55 dB18.53 4915J5 d918)5 0.002Y19 115 1]568J9 3&18.00 �CS
FULLRNER 63660 10yex 595000 a809.55 �91]fi0 181235 IB1J9] aW5929 106 212d]5 1816.N 0.6]
FOILRIVEft fi3610 W x R85000 aB09.55 9et5a9 dB1005 a815.65 0002P8 5.50 52]a2] 29229 oa2
FULLRIVER WiP5 10� tfi]W.00 CBOI61 dB15]9 �B1f 01 <815.85 0.0�0900 ]81 959T52 2651A1 03]
FULLflIVER 831]I.5 500 Ot9fi0.00 a80]6] <81819 <B13A6 <B1B26 0006556 JJ2 I1]OSA1 245958 022
FULLRIVER 831TI.5 10 � 5950W IBO)6� i8129J �90956 <BiJ.03 �.OW91] 266 ]8SB.62 1148.48 0.3J
FULLRIVFFt 8]1T/.5 SOy¢a� 12&5000 080].b] <81492 <910.56 �Bid99 0000918 ]fi5 1050.08 2B10.55 021
NLLRIVER 82115 t00y'a 16IOO.OU 090580 <815]] d81050 1915C6 0.000896 4IJ 8159.02 J311.20 ' 039
FULL�RIVER R]15 500 <19fi0.00 <BQ5.90 �8180] d91J.JJ I8100] O.OOOJtJ 290 3613153 ]190.0] 0.1)
FLLLRIVER B2]15 10 a 5950.00 <905.80 1912.E6 1809.00 <013.J0 00006I9 2fiB ]198.J3 25J3O0 022
NLLNIVER 62It5 50 12650.001 <805.90 d81453 d8�0.M 4914W OOW811 �fiB 6]J].01 ]161.1] 016
FULLRIVER 59195 tUOyea 1610D001 JB03]] i810.]5 <81140 IBL.50 0000896 <Sfi J6G9d1 J18J.C6 02B
FULLPNFlt 59195 500yp! <19fi0.00 <BW.JJ �81]]2 <81]OB �BP.W 00012)1 66) 1185840 ]]]1]6 0]5
FULL0.IVER 59f95 t0ywr 5950.00 <BW.3J <811.i0 �B09.ifi dB11.55 0000990 388 28]U.]5 2G106C 0.38
FULLRIVER 59185 WRx @850.00 <80.1]d 981]0] <B105i d01I.fi1 00009]9 Q]6 fi10B.1B J10.5.15 028
fl1LLRIVER 5&515 1pp Ifi]00.� <6O]&5 IB1101 1009.BC C81d.1] 0.0001aB ]Yl 919].20 2605.OJ 019
FULLftNER 5&515 SOO�ye <�9fi0.00 <80?93 <BRO) IBH.53 <BP.t5 0.000361 ]60 21096.]] 268956 019
FULLRNER 5&515 10yea� 595000 d90]fl5 aBI1.1C 0000.<3 <011]B 0000]15 21] 50.50.90 2AOBJ 016
fULLRNHt 5&515 50year t285000 a0O]65 a8ll.9 a009.d] a81I2a O0003]9 290 J916.)6 2596d6 ot9
NLLRNER 5)IOt 100 16]00.00 OBW.00 CBll53 0810]fi d01165 O00WQ 6�0 ])51P 28J4.92 O45
' FULLRNER 9101 5Wyva <1962W dePl.OU 091fi.W �BH99 C816)8 O.OOOfiPt <01 1]�]8.15 <21]5] Ob
iULLRIVER 5]i01 tU e 5950.00 <80140 CB10.W <808.% <81�]� 0.000156 JJ5 ]611]9 2629SJ 03<
" FULLRNEft S�Wt SO�ea 1]&50.00 <BO]00 <012.85 C809.96 <813.)6 OOOOJI] OOJ eCEB.45 2180.]B 0.25
FULLRIVER 58198 100 t6]O�.W C902.55 C912.8] dB09.L] ABiJ.W 0000890 ]22 9]90.4/ ]029.9) 01B
� FULLRNER 58198 5Wynr at96000 aB0155 a0136] 0911.]0 <815.90 OOOtD'! 69t t6059.51 51W.96 0.15
FULLRNER Sfid9fi 10yex 595000 d90255 <009.68 1009.]0 4809.92 0001f55 d09 1900.G 12BJBB 0.39
FULLRNE0. 5&Bfi 50 a 12050W aB02.55 C013.01 <BOB.51 CBi21fi 0OOO6fi6 J61 ]39109 J2]2.&t 023
FULLRIVER 5&W BnJgel
FLLLftNER 3fi290 100ytar 16i00.00, <002.15 C81050 <BOB38 4811.Bfi 0.001858 909 3Q185] ZW8.13 Ofit
FULLRNER SRBO 5U0 a19fi0.00 A002.15 ae1320 a912.91 d81<.]2 000]]N tO10 6601<6 JS(11.0.5 OS]
FULLRNER 58290 10yGx 595000 s002.t5 <80820 <805.35 <909.W OW10@ 509 1189.26 199.18 a.JJ
FlILLRNE(t $6Y90 50 �265000 a902.i5 dB09.B] 080]<0 a81100 OOW86'I 9.55 13@.L` 2�0.I0 055
FULLRIVEft. 551J0 100� 1fi]00.40 0]H9.]5 I9pB.Ofi e80)29 C809.15 0001319 5.]p ]OBB.i1 J<92.18 O�a
FULLRNER SSJ."f0 5W�ws� <1960.00 <]99.]5 <B11S0 C800.90 iB11.]9 0001]]8 i08 1JBJ9.58 186252 O<0
NLLRNER SSJ]0 10 595000 d]99.]5 <BU]11 <BOC39 <BU1]0 O.OOOBO) 1.1< ]8f0.19 ifAi.]] 0.36
FULLRNER 55]]0 50 1265000 <]99.]5 <BOB.<9 CBOfi.90 CB08.6I 00012]0 <.BB 59]020 1d90.<3 0.32
FULL.RNER 53910 100 tfi)W.00 C]98.15 IBO]92 dBOfi.]I dBUB.01 O.OOOBM 6.51 10155.]8 J1G6.45 DIJ
FlILLRNER 53910 3W 119fi0.00 <]98.15 dB09.B5 aB0]50 d61008 0.001395 612 1fiBfi9.80 J12d.12 0]8
NLLRIVQi 53910 10 5950.00 a]98.15 4805.]6 a8N.03 iB65.98 0.00121Y1 a.55 ]036.OB 2916.]9 0.]1
FULLRNER 536I0 50' 12fl5000 a]98.15 a90]JB aBDfiO] CBO)<9 O0W806 a.JO 80.522U ]t3fi.T/ a26
FIILLftNFR 532C0 1W 16]00.00 1]98.15 <BO5.]0 <90fi.<i O.W9]& 1109 3180.32 �1Y-0S5 OB2
FULLRIVER 532<0 500 <t960.00 4]98.15 <60]<2 <908.09 OOOSBfiJ 11Y] t0005.J8 J31B.62 0)0
FULLRNER 533d0 10yxx 595000 <]98.15 aeo�.�i <90129 O.W5196 J.30 14W.50 601dd Ofi0
FULLRIVER 53110 50ylM 1205000 di98.15 �806.92 OB05.9'! OW9lfl5 10]8 Z188.fi0 803A6 0.19
FULLRNE0. 52]IO 1Wyw i6)0000 i]95.55 1003A0 <00151 CB02.fi0 OW3501 55] 68P1.13 1]IlO OC]
FIILLRNER 52I]0 500yeaz <196000 1]95.55 �B01.fi1 C8035] <BW.BB OW1502 fi.90 1]1R.]B J118.J2 0.0.5
FULLRIVER 52310 10 595000 a]9555 <BW9] <BOO.W 000119 OW350] dl) ]W0.11 266].BB 0.01
FULLRIVER 52]]0 50 a 12&50W a]9555 IB019) aW129 <802.16 O.OOPSOU 5]2 5]W.t1 D10)0 Oa2
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HEGRAS Plan:Pre Project
� Reach River Sta Profile E.G. Elev W.S.Elev Q Tohal Q Weir Q Gates
(ft) (ft) (cts) (cts) (cfs)
EXISTING LAKES 70673 100 year 4828.58 4828.58 403.50 403.50
EXISTING LAKES 70673 500 year 4831.04 4837.00 6822.33 6822.33
EXISTING LAKES 70673 10 year 4827.78 4827.78 1.00 1.00
EXISTING LAKES 70673 50 year 4827.80 4827.80 1.00 1.00
EXISTING LAKES 69479 100 year 4826.39 4828.39 518.70 518.70
EXISTING LAKES 69479 500 year 4829.98 4829.86 8946.73 8946.73
EXISTING LAKES 69479 10 year 4827.78 4827.78 1.00 1.00
EXISTING LAKES 694�9 50 year 482779 482779 7.21 121
EXISTING LAKES 65125 100 year 4820.76 4820.75 673.77 673.77
EXISTING LAKES 65125 500 year 4823.77 4823.63 14902.78 14902.78
EXISTIIVG LAKES 65125 10 year 4819.59 4819.59 1.00 7.00
EXISTING LAKES 65125 50 year 4679.95 4819.95 �.21 1.27
�
HEC-RAS Plan:Pre Prqec�
Reach River Sb P�ofie E.�.US. Min EI Prs BR Open Area Prs O WS Q Talal Min EI Wei�Flow Q Weir Della EG
. i (tl) (fl) (59 ft) (fl) �C(5) (R) (c(s) (fl)
FULLRIVER 56400 100year a81J.03 4814.40 208528 16700.U� 481101 d326.9a 10]
fULLRIVER 56400 SOOyea� 4815.98 4814.40 20B52B OB34.09 41960.00 4811D1 26923.55 166
FULLRIVER 56400 10year a80s.92 a91440 208528 5950.00 aB11.01 132
FULLRNER 56400 SOye2r a812.16 481a.40 208528 12850.00 0B11O1 N95.09 1.16
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j as=�usernauoss-seao�aa�memr�iyao�eaeo�„�nreamonne� R5=1125d
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4835y WS 100 year I WS 100 year I
1 EG 100 year 4850 EG 100 year
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400 600 B00 1000 1200 1400 1600 1800 2000 400 600 B00 1000 1200 1400 1600 1800 2000 2200
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� Pre 8 Posl ConsWction Model Plan:Pre Proletl Plan 5/OROOfi Pre B Pos�ConsWciron Motlel Plan-Pre�m�ecl Plan 5/J/IDOfi
RS=70986 RS=]0673 IS
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wS 500 year WS WO year
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4815
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400 fi00 800 1000 1200 1400 1600/800 2000 2200 400 600 B00 1000 1200 1d00 1600 1800 2000 2200
Station(R) Station(0)
Pre 8 PosiConslmclion Motlel Plan:Pre Pro�eclPian 5/<2006 Pre 8 Po5lConslmtllon Mo0e1 PIan:Pre Pro�eclPlan 5/0/1006
�. RS=]0493 ft5=69651
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� Pie 6 Post Conslmcuon MOGeI Plart Pre Pm�ed Plan 5/02006 Pre 8 Gost Conslmclion Mo�el Pla2 Pre Pmjec�Plan 5/6R006
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200 400 600 800100012W140U1600180020002200 200 400 600 8001000120014001600180020002200
Station(R) Stalian(M)
Pre 8 Pos�ConsWdion MoOel PW¢Pre Pmjed Plan 5/42006 �re 8 Pos�ConslmCion Motlel Plart P�¢Pm�etl Pldn 5/d2006
RS=69314 ftS=fi8798
1�0]�- O4-� �0Pk--04-�
aBaO� Legentl 4B40� Legend
I EG Sa0 year EG 500 year
� —�_
I WS 500 year WS 500 year
4835� _.. ..._.__. _.. _...__..
EG t00 year A835 EG 100 year
� WS 100 year WS 100 year
--�—_
WS 5o year WS 50 year
4830
...__......... .._._.__..
EG 50 year qB30 EG 50 year
wS 1a year WS 10 year
..___.._...... __._._.___
a825 EG 10 year EG 10 year
C c
Gmund Gmund
� Bank Sta � 48Z5 Bank Sta
m '
w 4B20 �y., . k n,' w
,...n cv §�+� �. i�j
4820 �
d815
aeis
ae�o
a805 � 4810 �-r-�'r-�r�-r-�
200 a00 600 800 10001200160�160018002000 2200 400 600 800 1000 1200 1400 1800 1800 2000 2200
Y 5lation(fl) Station(fl)
�:t Pre 8 Po9 Cons W[Lon MoOel Plan'.Pre Prqecl P�an 5/0/2006 Pre 8 Posl Cqnslmclron Motlel Pla¢Gre Pm�M Plan SIO1200fi
RS=67570 RS=fifilfi8
-.07�� 04-� �0Pk--O4 -�
4B50� Legentl 4840 Leg¢nd
; __._...__.._ .__.._._.......
� EG 5o�year EG 500 year
{ w5 500 year WS 500 year
I ......__... _______..._..
� EG 100 year 4835 EG 100 year
dB40� WS 100 year WS 100 year
, W S 50 year W S 50 year
I ..__...-__._- _____._..._..
EG 50 year q830 EG 50 year
WS t0 year WS 10 year
4830 _.__.._'_'____ .._.._�•-_._...
EG 10 year EG 10 year
c �
� Ground GraurrJ
�
� � ° 4825 ..._"""_.__'__ ___'___ "_""_'""_ •
� Bank Sfa 'm Bank Sla
m'
w w
.,._... _. .. __ .
4820 ..:. ...f.....,..
<i"_� �- r,'p•'
4820
6810
4815
4800 4810
1000 1200 1400 1600 180U 2000 2200 2400 2600 1200 1400 1fi00 1800 2f100 2200 2400 Z600
Station(R) Slalion(ft)
Pre 8 Posi Consimclion Motlel Plan�Pre vro�ect Plan 5/a/2oo6 Pre 8 Posl ConslNcOon MOEeI Plan:Pre PmjeCl Plan 5laQoo6
. ftS=66055 RS=65790
i<.0I�-__ --A4- --�' . �-- O4--�
J850-, ' Le9end 4830 0 Legentl
� EGSOOyear . � ....__,_. .._.
T EG 500 year
� I WS SOo year WS SOo year
1 EG 100 year Cn!500 year
I —__-- ___..._._...
aBaO WS t0o year 0825 EG 100 year
� __-._ _..__._._..
wS 50 year WS 100 year
.._._....___..
EG 50 year W 5 50 year
____•._.._..
� WS 10 year � _ EG 50 year
.... ,a���= r r:�: ,:�.
CB30 EG 10 year d820 ' ' Cn1 t0�year
c . c ................._
� GrounE EG 10 year
o c
_ � o
� --'--- Bank Sta A W S 10 yea�
w w Cri150 year
4820 . �`:.." "• ""' 4815 CritlOyear
GmunG
•
Bank Sta
4B10 4810
a800i� .r--Tr�-'-���—� 4805
B00 1000 1200 1d00 1600 1800 2000 800 1000 1200 1400 1600 1800 200O 2200
Slation(fi) Stalion(fi)
Pre 8 Pos�Cons W clion MOJeI P�a2 Pre Pmjecl Glan 5/0I2006 Pre 8 Posl Con5lmNon Mo0¢1 Plart Pre Prqecl Plan 5/42006
RS=fi5125 IS RS=65050
I . k--.O4--� .04--�
J830� 0 Legend 003� 4gend
� .._._. _.._._._Y__.
�I EG 500 year EG 500 ear
I W 5 500 year W S 500 year
___..__.......
_ ...._......__.
EG 100 year EG 100 year
4025 WS 100 year W S 700 year
. ...___._ __....._ —�
; � WS so year � WS SO year
, ._...........__ ......_....___
EG 50 year EG 50 year
�"M` W510year WSiOyear
....y � _.,.�,- .
4820 �;'. *' ' ,i� ____..-...__ __"_ "'____._
�EG 10 year EG 70 year
� GrouM � GrouM
� • � 4820 F> f.f:'e'+`..° •
'm Bank SW fi i t - 8ank Sta
m d
:'.c +.� "�hyd
w w ti t a :'5 �",="i,�".
4815 y �? � #��,.
�
.� ,: 9:g�S'� �c:�
�t� w ( ��_ : �
� A r
� Y3
4875 � �$ �'�f S 7�y.� ;
� t� '�5},
i_ �
4810 �'��a�g���a4 }�} ��
4y,r�i4� � � `
' 3xt; �`� .,'����'
_ . r < _.>..
4805 4810
800 1000 1200 1400 1600 1800 2000 2200 800 1000 7200 1400 1600 1800 2000 2200
Station(R) Station Ifl)
Pre a vosl ConsWc�ion Moael Plan:Pre vm�ecl vlan 5/a/Ioo6 Pre 8 Fosl Conslmclmn MOGeI Plart Pre Projetl Plan 5/a2oob
� FS=]P]OTnecross-5ManI5NeEownneamWBeol�pe4351ranlaper ft5=]t)651neHMbelloweua5nMelNto`eNankoll�¢cmssse[ti
4855� 1�- o]---�O�-D7-�j 4850 �o7--�O�-D7--�
a Legentl �1 q Legend
EG 500 year � EG 500 year
WS 500 year WS 500 year
a850�
Crit 500 year 4845 Cnt 500 year
___-_ _._.__....
EG 100 year � EG 100 year
1
4045� WS100year _..._......__._.___..__..__.._..__-__.__.' W5looyear
..__...___ ____.__.._.
EG 50 year q8a0 � EG 50 year
� �� � �
-•-�...._ ___ W550Year � \ �� W550year
♦ ♦ �
o ae4o �\\ \\\\\ Cnt 100 year � � \ \\ Cdt 10o year
c
\ EG 10 ear Ctlt 50 ear
� 4835
\ Cnt 50 year m EG 10 year
'v \� \ . . .. . � . . �
w 4835 WS 10 year w WS 10 year
Cnl 10 year Cnt 10 year
.4,
Ground qg3p Gmund
•
4830 IneR Ineff
• •
Bank Sta Bank Sta
4825
4825
1
4820� 4820
-1000 0 10�0 2000 3000 4000 500 1000 1500 2000 2500 3000 3500 4000 4500
Station�ft) Stalion�R)
� Pre 8 Post Conslmcllon MOGeI Pb¢P�e Pm�ttt Plan SI6/2�06 Pre B Gost ConsWctlon MOGeI Plan:Pre Proletl Plan 5/NZ006
RS=M]5T�bCm5ssMan¢NeupsYeame]Beoll�enpmprunEown. R5=]�)U11neXecireMnevstsn��elehowNankolMacro55-xe[tl
4945i IOI 0 �07� 4945 � 0 �.07--�
� 4 Legend � 4 Legend
._..__._____ ...._._.___...
� EG 500 year � EG So0 year
I
.1..._ - ._ .........._.. _...........__._. WS500year WS5ooyear
ICrit5o0year I...- ------.- _-..._.____._. Cnt5ooyear
4B40 ��\ \\\\ EG 100 year 68i0 EG 100 year
�\ � � � � � WS1o0year EGSOyear
\\ EG SU year Crit 100 year
�\ \ \\ WS 50 year WS 100 year
4B35 � Cnt 100 year 4835 WS 50 year
.
� � ._� ___ .. . . . . _ . ... .. � .
c
Crit 50 year � Cri150 year
o ................._
_. _..
._ ..._.__'"-_'_
EG 10 year m EG 70 year
'm _'m
w WS70year w WS70year
4830 Cnt 10 year 4830 Crit 70 year
GrounO — Gmuntl
_ �
Ine(f Ineff
• ' •
9ank Sta Bank Sta
4825 4825
�. 4820 4820 �.�
1500 2000 2500 3000 3500 4000 4500 1500 2000 250D 3000 3500 4000 4500
Slation(R) Station(R)
Pre 8 PosiConsWcllon Motlel Plart Pre Pro�ec�Plan 5/a/Poo6 Pre 8 PoslCanslmclion MpOel Pla¢Pre Projetl Plan 5Iap006
PS=]16Ai�iscros5�sMnnslM1edown9reamNOeMNeeq�nOrvMmvn R5=)I60lIDacmss�sMonbappmemalely�O�ttlOpwnsb¢vnolNen
a845 �.0w-I' .07-� 4845 b�0J�--O]--�
1 � Legentl � Legend
l{I EG 500 year EG 500 year
7 j l WS 500 year WS 500 year
4Bao� � I EG 10o year 4040 EG 100 year
I �i WS 100 yea� WS 100 year
� EG 50 year �EG 50 year
...... . ........_.. .._____..._.. WS50year .__.. _ _......_ ___._.___........., WSSOyear
4835 4835
Crit 500 year Cnt 500 year
w. � � �� � � _._.._._._.... ♦ .__..........
'� � � � EG 10 year � EG 10 year
c � \ —-�— c
� WS loyear � ......... ..... . WS 10 year
� 6830 -'w"" � . ._ o :� . .
q Crit 100 year Tc 4830 ��-.i Grit 100 year
u
W Cn150 year w -_ Cnt 50 ear
Y
Cnt 10 year Cnt 70 year
:�u
4825 GmunA 4g25 „_� Groond
� �y �
IneR ' IneH
• •
Bank Sla Bank Sta
d820 4820
48151--f-r�- 4815
1500 2000 2540 3000 3500 4000 4500 1500 2000 2500 3000 3500 4000 4500
� Station(ft) Station(ft�
� Pre&Posl ConsWction Mo�el Plan Pre Prqetl Plan 5/E2006 Pre B Posl Conshuclion Motlel Plart P2 ProjM PUn Sp2006
RS=71168 RS=70728
aB45,1 'Ia�.07--� I4�-ID--�
� Legentl 4845 0 Legend
1
I ..__......_..... ..............._..
1 ! EG 500 year 1 EG 500 year
1 WS Sao year I WS 500 year
_.._._. -
a8a0 EG 100 year 4840 EG 100 year
� WS 100 year Cril W0 year
�� .__•____
EG 50 year I wS 100 year
� ..._._......_...
4835 I H'5 50 year 4835 EG 50 year
•-�-- � ----- -- Crit 500 year ws 5o year
• ..._......._..._ .... ..
_ ... _ ___--_—_
EGtOyear �������� � - - Crdlooyear
., ._ _-_-_'____-
� wS�o yea� � EG t0 year
.__..._.. � .
o . ....... o
— 4830 � � 'q 4830 -------- WS 10 ear
m ' -- Cnt100year � y
x .
> _
m .�� >. .. m - �.�.. ... ..
w � Crit 50 year w Cdt 50 year
Crit 10 year „;.,;�« Cnt 70 year
�
4825 Lat Shuct ygZg GmunG
Gmund "'� Inefl
a •
InaR Bank Sta
•
0ank$�a
4820 0820
4815 4815
. 1500 2000 2500 3000 3500 4000 4500 5000 2000 2500 3000 3500 4000 4500 5000
Station(ft) Stalion�fi)
Pre 8 Posl Con5WCion Mo4el Plan Pre Projetl Plan 5/0R006 Pre 8 Posl ConsWtlion Motlel Plart Pre Pm�ec�P�n SI42006
RS=70235 I ftS=fi9741
� 4845� 0 0� .07----� .I,�E--. Q��
Le end 4945 0�
7 a 9 74 Legentl
� • EG 500 year } EG 500 year
I
� w5 Soo year I WS W0 year
484� i EG f00 year d840 I EG 100 ear
Y
- w5 1oo year WS 100 year
EG 50 year I Crit 500 year
__._........_.
4835 �'i WS 50 year EG 5�year
4835
i Cril 500 year WS 50 year
. ___.........
j EG 10 year Cnt 100 year
c •_•-.____ ..._.{...._._ ..___._ . r.
_ ........ c
c CntlOoyear " .......-•---.....
� 4830 �� �\ c EG 10 year
- .-r— a ...____.. ...... __..._.._.
v ..............._._........ � \ WS10yea� � 4830 C�i�50yea�
W a Y_
"� �—'— Crit 5o year w WS 10 ear
___.... _.._ . Y
--- Crit f0 year x< �. �� _ Crft 10 year
'x "_., " . . �� . ,a�.:..._,:
O �
4825 Lat Strucl 4825 Grountl
Grauntl � �
IneR
♦ �
IneR Bank Sta
•
Bank Sta
6820 4820
4815i--�-----" �T.��--.� 4815
2000 2500 3000 3500 4000 4500 2000 250U 3000 3500 4000 4500 5000 5500
Station(R) Station(R)
, Pre 8 Pos�Con5Wtlion MoOel Plart Pre Pmlecl Plan 5/62006 Pre 8 Po51 Con5Wtlqn Moael Plan�Pre Pro�ect Plan 9E2006
RS=69293 RS=fi8844
_ IuI
4865 0 .07- � 4835 00�O7--�
�q LegenE 74 Legend
T EG 500 year EG 500 year
i �WS500year WSSOOyear
� . ....._____.
6840 __....._..__._.
EG 100 year EG 100 year
I Crit SU0 year 48a0 WS 100 ear
Y
. ....__.'-__..
I WS100year .._.._......._..____.......___' EG50year
..__•-___..
4835 EG 50 year WS 50 year
.....__ ._..____ _._._.�....__.
w5 5o year — EG 10 year
Cn[100 year 4825 � - WS 10 ear
c , 3.. Y
c —y_
c Crit 50 year c r���.� .`,-� GrouM
'� 0830 -_._...___ o -. ;, �
EG 10 year ' Bank Sta
'm v
w � WS 10 year w
.___......___........ �.
"---""'"'"""--""'--'— Cnt 10 year 4820
4825 — Lat�
Ground
IneH
Bank Sta 9875 '
4820
4875 4810
2000 2500 3000 3500 d000 A500 5000 2000 2500 3000 3500 4000 4500 5000
Station(fi) SWtion(ft)
Pre 8 Posl Conslmqion MoOel Plan�Pre Ro�ect Glan 5/<2006 Pre 8 Posl ConsWcllan Mopel Plart Pre Pm�etl Plan 5/<2006
I II� RS=68234 RS=67624
, I i�l`� 07 —� �.07--�
483510�Y Legend 4835 '4 Legend
14
EG 500 year EG 500 year I
WS 500 year WS 50o year
_ .
EG 100 year E6 1oo year
4630 W S 100 year 4B30 WS 100 year
EG 50 year EG 50 year
'_.._._____........... W S 50 year W S 50 year
_.__..•__..._ __....�...__..
EG 1�year •'.................. EG 1a year
4825 '-'- ------ WS10year d825 WSfOyear
— ,—'—
,r ., . �., • c _ _- __._._. �
� GrouM � --- Grovnd
- _ ___'_ • o . �
Bank Sta m Bank Sta
'm _
w w
E820 4820
4815 4815
aeia- -— aeio �,---,
1000 1500 2000 2500 3000 3500 4000 d500 5000 2000 3000 4000 5000 6000 7000
Station(ft) Station(R)
_y Pre B Posl Conslmtlion Model Plan:Pre Pro�ett Plan 5/02006 Pre d Posl Conslmc�on MoOH Poan�.Pre Pmjed Plan 5I42006
RS=66814 RS=65735
- a895 IOI0�.07� 4830 OO�.W—� .
�y LegenA �4 Legend
_..__•-___ ._•_._._.
EG 500 year EG 500 year
WS500year 48Z8 WS500year
...._.............. ......_....._..
EG 100 year EG 100 year
aB70 WS 100 year aeZ6 WS 100 year
.._.__�.____. _........_.....
EG 50 year EG SO year
WS50year 68Z4 W550 ear
........_......__.__...._.__.__ Y
.____'___._ ___"___-
EG 10 year EG io year
_ _____—____ ' '_ —�
4025 W 5 10 yed� 48� W$10 year
c
�
C�murid � Ground
� _____ '.-"___ BankSta n 9820 � -._ . ",. Bank5ta
> a � � ,�
w w -x'� �{'ro
C820 4818 t�;`�
4816
a815 4814
YB12
E810 4810
2000 2500 3000 3500<000 450U 5000 5500 6000 6500 2000 2500 3000 3500 4000 4500 5000 5500
i
Stalion(ft) SGtion(H) �
Pre 8 Posl Conslmclion Mo0¢I Plan:Pre Pm�ect Plan S/OR006 Pre 8 Posl Consimtllon Model Plan:Pre Pm�eC Plan 5142006
I �j$=6 j(j�� FS=N120 T�i5¢an nlerpolalM�msssecton MMem%5 81600 a�M%5 6]
4830 IO 0 .07� 4826 IO� 07 �
I � 4 Legend �4 Legentl
� EG 500 year EG 500 year
1 WS 500 year qgpq WS 500 year
,
� EG 100 year EG 100 year
� WS�00 year WS 100 year
4825 EG 50 year 48zZ Cn�500 year
, _.................
WS 50 year EG 50 year
EG 10 year 4820 WS W year
� _..____...._ ___._._........__ ___._..
WS 10 year '-- � EG 10 year
z �
c
— ....._........_..._....._......._..... Gmuntl � Lnt 100 Year
';c •
4820 BankSla � 4818 WS10year
u m
w w Cnt 50 year
-- 4816 �, CnttOyear
.t+,',-� R c;��
GmUntl
- q1'�T ��?�. •
� IneR
4015 4814 �
Bank Sla
5s
4812
4910 �� 4810
1000 1500 2000 2500 3000 3500 4000 4500 5000 1000 1500 2040 2500 3000 3500 4000 4500
SUtion(R) Station(f1)
. Pre 8 Posl Constmdion Model Plart Pre Pmlecl P�an 9</2�Ofi P2&Posl Con5leucllon Moael Plan:PR Pmiecl Plan 5/42006
RS=63640 as=ern s r�a a�.ne�o�am oossem�eerv�K�zs sawo am xs sz
07 07
I I � 4830 IO
a8z41 �� Legend �4 LegenA
1 EG 50o year EG 500 year
qg22. W S 5oa year W 5 500 year
_________ _.___..._.......
EG 100 year EG 100 year
WS 100 year 4ez5 WS 10o year
4820 Cnt 500 year EG 50 year
_ '__ _
...-.__....._..................__._.___-_ EG50year W550Year
4918 W S 50 year Crit 500 year
. .. 4820 _-___'-_'_-_
� Lnt 100 year EG 10 year
r s
� Grit 5o year � W S 10 year
� 4816 . .. ... .._.....-....._ o .
m -r_ � EG 10 year � Cril 100 year
v ��„ � m .. . .. .
w ��x��;, WS10yeat w _ Crit50year
_ 4x , . . -. . ,
4810 - i��ti ,
Cnt 70 year 48�5 ', �� Crit 70 year
� -- GrOUnd . GmurW
� � a
IneR � �.� IneR
4Bt2 Bank5ta _Jj '- BankSta
4810
4810
d808 C805
1000 1500 2000 2500 3000 3500 4000 4500 1000 2000 3000 4000 5000 6000
Station(R) $tation(fl�
Pre 8 Posl Cons W ceon MoOel Plan:Gre Gmje<i PWn 5/</2006 Pre B�osl Conslmtlion MOJeI Plan:Pre Pmle<�Pldn 5/C2006
RS=63)ISTM1e[ross�smqnazsume�t�e'maT[�annelEdnkstllpnswere RS=59195Tp¢crossIutlunusumMV�e'mapc�annel�anhavlonswere
4840 I00�--��'-O7�I a850 �.0]�.07--�
1 74 Legend d Legentl
� EG Soo year EG Soo year
4B35 WS 500 year WS 500 year
EG 100 year EG 100 year
a840
WS 10o year WS 10o year
4830 .__._...__._ ._._...........
EG 50 year EG 50 year
W S 50 year Crit 500 year
4925 Cnt 500 year W S 50 year
_-_'__ 4830 -._-__�__. .
� EG 10 year EG 10 year
c c
WSloyear � WS10year
0
= 492o Crit 100 year Cnt 100 year
w' 'a
w Cnt 50 year w Crit 50 year
4815
Cnt 10 year 4820 Crit 10 yea�
. - _.__...._ ..........."'
Grountl GrouM
_"__ .-_ �. . � 4
inef/ IneR
4810 Bank Sta Bank Sta
6810
4805
�
48001 aB00
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 7000
�� Station(ft) Station(ft)
- Pre 6 Posl Cons W clion MoOel Plart Pre Projecl Plan 516200fi Pre G Posl Consivi9on Abtlel Plart Pre Projecl Plan 5/42006
RS=58515 J I' I � R5=57401
a830� I�-.0�--'�4�'-.--O7— �l Le9end 4830 I�.07�.07—� Le9end
.___...._...... __.__.._.._..
� EG 500 year EG 500 year
WS S0o year WS W0 year
4825 EG 100 year 4825 EG 100 year
WS 100 year WS 100 year
......._•-_.__ "_"'__'___..
EG 5U year EG 50 year
4820 WS 50 year a820 WS 50 year
Crit 500 year Crit 500 year
.__....._.__. _-__-•.__...
EG 10 year EG to year
z �_ � " __._ ...._ —�--
'� WSloyear " } WSiOyear
� 4015 Crit 100 year � 4815 I Crit 100 year
>y ,. m .
"""'" ""'""""
w . . Cnt 50 year w �„r, Crit 50 year
_-_ Cnt 10 year „s', k� Crit 70 year
a810 Graund 4810 ` GmurM
♦ � x.. �.:� . �,
IneR ��R
• •
Bank Sta Bank Sta
4805 4805
4B00 4800
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 700�
Slation�R) $tation(fl)
Pre 8 Post Cons�mclion MoOel Plan:Pre Pm�ecl Plan Sl4/2006 Pre 8 Posl Conslmtlion Mpdel Pldn'.Pre Pm�ecl Plan 5/0I2006
as=ssassrneimo�e�oa��ma����asm�ma<msssenn�wasa�iai RS=56400 BRBndgeatWCRi3
4825� � 1���---.0]--� a825 �.1—�p�---.07-�
q legend 4 Legend
{ EG So0 year EG 500 year
WS 50o year W S 500 year
EG 10o year Cril5oo yeai
4820 4820 ___._...__-.
WS 100 year EG 100 year
_.__...,.... � . ...._
EG 50 year s; EG 50 year
WS50year ,�; _� ,y� WS100year
• ' :..:�IP�r ..�-.
. _ . _. ._.a � 4- 5'�., �
'�""� -'�-'- Crit500year "'�-�- 4 �^- W550 ear
y� v � Y
a815 ����\ \� ..EG 10 ear 4815 - -'! .:. � ..__.�.__._
\�� Y ' EG 10 year
r. �. ....� , , .
s ^ .
c _ .... �� WSloyear � ;.; _ ..�: Cntiooyear
0
- — Crit100year �'�� WSloyear
w ���`�Ye�� w '��`s Crit 50 year
<810 - — Cnt10 ear 6810 � •
Y Cnt10 year
Ground �
' i ..yg , Ground
� �
Ineff ��yry
• �
eank Sta Bank Sta
4805 4805
I
4800�.�-.--n,�T,-,� 4800r----�-
1000 2000 3Q00 4000 5000 6000 7000 8000 1000 2000 3000 6000 5000 6000 ]000 8000
� Station(fl) Statian(ft)
Gre 8 Posl ConsWctlon MoUel Plart Gre Prqecl Plan SI4R006 Pre 8 Post ConsWtlion MOtlel PWrt P2 Pm�ect Plan 5l6/2006
RS=56400 BR Bndge at W CR13 RIS� =Sfi290 CfOUNTY ROAD 13(NEW BRIDGE)
-O4 . ---A7--� I`-.06-ry.�--.07-�
G820
� � 4 Legend 4B18� b Legentl
.___........... .. ...
_..
EG 500 year } EG 500 year
WS 500 year 0816y WS 500 year
" � �,. Cril50U year Cnt 500 ear
� ' Y
___
......- EG 100 ear ...... ...........
4815 ',''� ,�..,. Y ....___ . ........__..____ EG100Year
� ' � AB16 -__'._..__
W S 100 year EG 5o year
.........-........
,., _
EG 50 year W 5 100 year
�"' WSSOyear aB�Z ___ WSSOyear
a.;: ""__.,...___ .._. __'.._.._"___
<.
EG 10 year EG 10 year
c' " ^
.J `:.- a':,:: .. �._... � _......... . ..
o �� Cnt 100 year � Cnt 700 year
� 4810 ° 4810
1° WS 10 year WS t0 year
> ^ .
_v , m'
w Crit 50 year w Cnt 50 year
Crit 70 year QB0B Cnt 10 yeaf
Ground Graund
• �
Inefr Ineff
� 4806
4805 Bank Sta Bank Sta
4B04
4800 4802
� 1000 2000 3000 4000 5000 6000 7000 8000 1000 2000 3000 400U 5000 6000 7000 8000
Station(fi) Station(ft)
Pre 8 Posl Cons W[uon Moaei Pla¢Pre Aolec�Plan 5/</20W Pre 6 Pos�fqnslmclion Metlel Pbn'.P2 Pm�etl PUn 5/</2006
t R$=55J]0 i�Gb
ptyrap0CNlo�malnnbrlli¢[msSMonwas�akenlm qS=539]0 i�ebpppraO�K�^�I ^��IorNucmss-zMunwasbkenlm
' 6820� �— 07 ��—.07—'� 4820 I .07—ry.�--07--�
I q Legend � d Legend
1 EG 50o year 1 EG 500 year
� WS 500 year j f WS 500 year
j EG 100 year I EG 100 year
4815 4815 --
WS 100 year WS 100 year
I Crit 500 year Gnt 500 yeat
....__.�.__ __.«._.__
. . . _. .._._._ EG 50 year EG 5U year
� �� WSSOyear WSSOyear
4810 ._...�.__._. 4810 ..__ _.___._.. ..._ .
" _. .__. _. ..._.
EG 10 year Gnt/00 year
z ___ �
'"'_' " ' . . ,
� -.-. Cri!100 year " _ y
o .;. o ...__..................... _ Cri150 ear
._ . .. . ............___
� - WS 10 year m : �, EG/0 year
W � � .r,�Y
Cb150 year w WS 10 year
�'-�:YUZ ��.x:
4805 Cnt 10 year 4805 �-�,; Cnt 10 year
GrouM Gmuntl
a
Ineff Ineff
• •
Bank Sla Bank Sla
4800 4800
4l95 4795
1000 2000 3000 0000 5000 6000 7000 8000 1000 2000 3000 4000 5000 6000 7000
Slation(ft) Stalion(R)
� Pre 8 Posl ConsWtlion MoOel Pla¢Pre Prqect Plan 9U2006 Pre&Posl Conslmclion MoCel Plan'Pre Prqetl Pbn 9M2006
RS=531C0 T�ebµqmp�Icinlormavonlorl�¢wu�sectnnwaslakmlm FS=51]ID Thpbygrap�eMormalunlorN¢[msss¢cbnwazUkenlm
4820 0]�07—� �--.07—�.�--0�
� Q Le9enE 4825 Q le9entl
._...........__. .._........__....
EG 500 year EG 500 year
W S 500 year W S 50o year
_._........._... .______....._.
EG 100 year 4820 EG 10o year
EB15 .........,......... ,
EG 50 year Crit 500 year
W S 100 year W S 100 year
__-..__...
WS50year 4875 EG50year
._...._.__-— '
EG 10 year W S 50 year
dBtO W$10 year Cril 100 y¢af
c t
�
� " _ __ ._...___._ . GrowM � Crit50year
o ._.. _._.._ • ° 4910 ........"•""____
A 0ank Sta A EG 10 year
> >
a ...._._.__..__ _ y
w '_____.__._" __'_ w WS70year
4805 '
��. Cnt to year
'�� 4805 .__....____ ....._._.. Ground
•
Bank Sta
a800
4800 �r �
4795 4795
1000 2000 3000 <000 5000 6000 7000 8000 1000 2000 3000 4000 5000 6000 7000 8000
.� Station(fl) Stalion(ft)
CHECK-RAS Program: MULTIPLE PROFILE Check
?roject File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\51'VRAIN.prj
Plan File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MO�EL\STVRAIN.p02
GeometYy File: P:\3559�3559-ENG\CLOMR\WMHINED CLOMR MODEL\STVRAIN.g03
F�^w File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.f02
�t File: P:\3559\3559-ENG\CLOMR\COMHINED CLOMR MO�EL\STVRAIN.mp
�ted profiles: #10 year,#50 year,#loo year,#5o0 year
__a: 5/4/2006
Time: 10:16:43 PM
River Station wSEL Q Total Top Wd[h Act Vel Head Profile Number
'_'_""___________'_'_'________________"_'_'_"__"__'_____________________'_____"
St. Vrain River,EXISTZNG LAKES
71599 482�.78 1 878.05 0 3
71599 4827.8 1 878.66 0 4
71599 4928.58 1 905.51 0 1
91599 4831.08 1 995.0� 0 2
71254 4827.78 1 921.99 0 3
91254 4827.8 1 922.2� 0 4
71254 4828.58 1 934.44 0 1
71254 4831.08 1 967.08 0 2
�0988 482�.78 1 1098.96 0 3
70988 4827.8 1 1099.23 0 4
70988 4828.SB 403.5 1113.48 0 1
70988 4831 6822.33 1183.85 0.04 2
70673 Inline Weir
70493 4827.7A 1 1103.72 0 3
70493 4829.79 1 1104.02 0 4
7�493 4828.% 403.5 1116.86 0 1
70493 4830.89 6822.33 1198.61 0.06 2
69651 4827.70 1 1362.55 0 3
69651 4827.79 1.21 1362.7 0 4
69651 4828.47 518.7 1368.61 0 1
69651 4830.41 8946.13 1412.76 0.08 2
69589 4827.76 1 1469-06 0 3
59589 482�.79 1.21 1469.�3 0 4
69589 4828.39 518.7 1485.95 0 1
09589 4829.86 8946.13 1517.69 0.12 2
' '9 Inline Weir
? 4819.6 1 1490.44 0 3
i4 4819.95 1.21 1496.54 0 4
69314 4821.11 518.7 1513.73 0 1
69314 4825.92 8946.13 1584.98 0.01 2
68798 4819.6 1 1003.34 0 3
68798 4819.95 1.21 1021.15 0 4
68798 4821.09 549.57 1078.27 0 1
68798 4825.83 12281.86 1464.38 0.04 2
67578 4819.6 1 1003.55 0 3
675�8 4819.95 1.21 1008.72 0 4
67578 4821.03 549.57 1024.36 0 1
67578 4825.51 12281.86 1089.34 0.06 2
66768 4819.6 1 917.5 0 3
66768 4819.95 1.21 920.6 0 4
6fi968 4820.97 673.17 937.42 0 1
66768 4825.13 14902.�8 980 0.12 2
66055 4819.59 1 830.57 0 3
66055 4819.95 1.21 834.02 0 4
66055 4820.67 673.1� 842.79 0.01 1
66055 4824.49 1490�.78 869.88 0.2 2
65190 4619.59 1 7169.55 0 3
65190 4819.95 1.21 1181.32 0 4
`05190 4820.75 673.1� 1207.36 0 1
65190 4823.63 14902.78 1254.86 0.14 2
65125 Inline Weir
65050 4818.48 1 1008.13 0 3
65050 4819.95 1.21 1038.73 0 4
65050 4820.56 673.17 1052.74 0 1
65050 4823.49 14902.78 1119.78 0.03 2
SC. Vrain River,I-25 to Sunc[ion
71770 4828.55 5950 254.94 0.52 3
71770 4831.56 12850 280.11 0.77 4
�1770 9833.11 16700 309.47 0.84 1
�»70 4841.22 47960 462 1.09 2 �
- 4828.28 595� 283.55 0.71 3
4831.26 12850 296.�9 0.98 4
i..�5 4832.84 16700 303.78 1.05 1
71765 4840.63 41960 338.36 1.54 2
71735 4828.04 5950 244.91 0.�6 3
�1735 4831.1 12850 296.21 1.02 4
91735 4832.72 16700 314 1.07 1
�1735 9840.6 41960 314 1.49 2
�1701 482�.13 5950 185.35 1.1 3
�1701 4828.9 12850 192.64 2.41 4
71701 4829.64 16�00 195.69 3.16 1
71701 4835.04 41960 221.68 5.58 2
71634 4827.56 5950 269.69 0.15 3
�1634 4829.82 12850 321.39 0.4 4
71634 4830.64 16700 332.97 0.56 1
"534 4833.67 41960 345 1.99 2
78 4827.56 5950 337.56 0.13 3
06 4829.82 12850 39�.75 0.35 4
. .008 4830.65 16700 403.79 0.49 1
71608 4833.75 41960 425 1.69 2
71465 La[eral Weirs
71168 4827.31 5950 523.23 0.1� 3
7ll68 4829.44 12850 580.51 0.35 4
71168 4830.2 16495.85 607.89 0.45 1
71168 4833.01 37324.55 629.5 1.1 2
70728 9826.�6 5950 716.91 0.3 3
70728 4828.69 12850 734.88 0.49 4
70728 4629.38 16297.5 736.69 0.5� 1
70728 4831.86 35138.67 737 1.09 2
70584 Lateral Weirs
70235 4826.25 5950 945.63 0.2 3
70235 4828.�1 12849.8 972.71 0.29 4
70235 4828.65 16180.21 9B9.55 0.34 1
70235 4830.94 31636.53 999 �.53 2
69741 4825.5 5950 ll47.91 0.28 3
69741 4827.21 12849.79 1226.98 0.32 4
69741 482�.81 16182.3 1244.13 0.35 1
69�41 4829.8� 33014.88 1261 0.54 2
69359 Lateral Weirs
69293 4824.44 595� 1128.3 0.46 3
69293 4826.24 12849.79 1398.92 0.42 4
69293 4826.89 16182.3 1410.4 0.42 1
69293 4828.�4 32305.91 1416.5 0.58 2
68844 4823.43 5950 1229.5 0.5 3
60844 4825.23 12849.79 1587.39 0.48 4
68844 4825.82 16151.43 1612.31 0.5 7
68844 4827.74 29679.14 16B4.1 0.5 2
68234 4822.41 5950 1028.69 0.4 3
68234 4824.08 12849.�9 1660.52 0.46 4
68234 4824.67 16151.43 1714.09 0.45 1
�4 4826.�3 29679.14 1832.52 0.4 2
4 4821.39 5950 1387.82 0.37 3
�'.j4 4823.03 12849.79 1516.94 0.35 4
67624 4823.61 16151.43 1561.15 0.35 1
� 67624 4825.81 29679.14 1fi63.99 0.33 2
�67487 Lateral Weirs
66814 4820.1 5950 1440.25 0.21 3
66814 4821.65 12849.79 1552.63 0.23 4
66814 4822.24 16027.83 1573.38 0.24 1
66814 4824.81 27058.2� 1924.25 0.2 �
SL. Vrain River,FULL RIVER
65735 4818.09 5950 1307.39 0.3 3
65735 4819.49 12850 1755.19 0.35 4
65735 4820.09 16700 1881.63 0.36 1
� 65735 4823.01 41960 2069.02 0.39 2
64600 4816-06 5950 1725.57 0.09 3
64600 4817.35 12850 1765.92 0.12 4
64600 4817.95 16700 1784.85 0.14 1
64600 4820.51 41960 2445.4 0.28 Z
64120 4815.28 595D 1639.21 0.1 3
64120 4816.47 72850 1790.27 0.15 4
64120 4817.1Z 76700 1804.8 0 16 1
64120 4819.49 41960 2502.24 0.25 2
63640 4813.6 5950 1511.41 0.32 3
63640 4815.49 12850 1730.06 0.15 4
63640 4816.29 16700 1748.32 0.15 1
63640 4818.53 91960 2838.4 0.22 2
63177.5 4812.97 5950 1328.48 0.04 3
63177.5 4814.92 12850 173�.67 0.07 4
63177.5 4815.79 16700 1758.44 0.08 1
63177.5 4818.19 41960 2859.58 0.07 2
62715 4812.66 5950 1179.64 0.05 3
62715 4814.53 12850 1731.4 0.07 4
52715 4815.37 16700 1768.02 0.09 1
6'�15 4818.03 41960 3290.47 0_04 2
5 4811.4 5950 1185.6 0.14 3
0 4813.47 12850 1676.06 �.14 4
S__d5 4814.35 16�00 1704.02 0.15 1
59195 4817.32 41960 1787.97 0.28 Z
59515 4611.14 5950 1422.19 0.04 3
58515 4813.17 12850 1429.77 0.07 4
58515 4814.04 16700 1431 0.08 1
58515 4817.07 41960 2292.81 0.09 Z
57401 4810.63 5950 1348.48 0.1 3
57401 4812.65 12850 1454 0.12 4
5�401 481J.52 16900 1454 0.13 1
57401 9816.61 41960 2183.38 0.13 2
%496 4809.6E 5950 518 0.24 3
56496 4812.01 12850 2297.42 0.12 4
56496 4812.8� 16700 235�.81 0.09 1
56496 4815.63 41960 2441 0.35 2
�00 eridge ql
�90 4808.2 5950 199.?8 0.4 3
290 4809.8� 12850 199.84 1.14 4
56290 4810.5 16700 1139.26 1.46 1
56290 4813.2 41960 1751.43 1.12 2
55330 480�. 17 5950 1693.37 0.13 3
55330 4808.49 12850 1890.43 0.18 4 �
55330 4809.06 16�00 2636.3 0.2 1
55330 4g11.5 41960 2938.1 0.28 2
53970 4805.�6 5950 2976.74 0.22 3
539�C 4807.38 12850 3136.77 0.12 4
53970 4807.92 16700 3166.65 0.12 1
53970 4809.85 41960 3724.12 0.21 2
53240 4803.71 5950 604.14 0.57 3
53240 4804.92 12850 803.46 1.05 4
53240 4805.38 16700 3060.55 1.09 1
53240 4807.42 41960 3318.62 0.67 2
52390 4800.9� 5950 2662.88 0.22 3
52370 4801.97 12850 2710.7 0.2 4
523�0 4802.4 16700 2727.47 0.2 1
52370 4804.61 41960 3116.32 0.27 2
'_____'___"'__________'_____________'__'_'____'___"_____________'__'_______"____'_
Boundary Condition Check
MP SW 01 The name of the stream is St. Urain River,i-25 to .7unction
(Normal S = o.001) is specified as the upstream boundary
for profile 100 year
MP SW 01 The name of the stream is SL Vrain River,I-25 to Junction
fNosmal S = 0.001) is specified as the upstream boundary
for profile 500 year
� �i 01 The name of the stream is St. Vrain River,i-25 to Junction
. (Normal 5 = 0.001) is specified as the upstream boundary
Eor profile 10 year
MP SW 07 The name of the stream is St. Vrain River,I-25 to Junctior,
(Normal S = o.001) is specified as the upstream boundary
for profile 50 year
hIP SW 01 The name of the s[ream is SL Vrain River,FULL R NER
(Normal S = 0.0025) is specified as the downstream boundary
for profile 100 year
MP SW 01 The name of the SCYeam is St. Vrain RiveI,FULL R NER
(Nonnal S = O.0025) is specified as the downstream boundazy
Eor profile 50o year
MP SW 01 The name of the stream is St. Vrain River,FULL AIVER
(Normal S = 0.0025) is specified as [he downstream boundary
for profile 10 year
MP SW 01 The name of Che stream is St. Vrain River,FULL RIVER
(Normal S = 0.0025) is specified as the downstream boundary
for profile 5o year
Discharge Check
_______'________
Water Surface Elevation Check
_"__________'_'__'____'__'___
2opwidth Check
R. 71735
MP TW 01 The topwidth is the same for profile number 1 and 2
Velocity head ior profile 1 or 2 is greater than 0.5 foot.
---END---
CHECK-RAS Program: NT Check
Manning's n value and Transition Loss Coefficient Review
Project Fi1e: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN_pr;
Plan File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.p02
GPome[ry Fi1e: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MO�EL\STVRAIN.g03
� File: P�\3559\3559-ENG\CLOMR\COMHINED CLOMR MODEL\STVRAIN.f02
�rt File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.nt
, :cted profiles: 100 year
Date: 5/4/2006
Time: 10:ll:?0 PM
SECNO STROCTURE NLOB NCHL NROB CNTR EXP
_'___'________"____________'___'_____"___'_'_____'________'_______'
St. VTain RiveY,E7tISTING LAKES
71599 0.0"1 0.04 0.07 0.1 0.3
71254 0.0"] 0.04 0.0"1 0.3 0.5
70988 0.07 0.04 0.07 0.3 0.5
70673 Inline Weir-Up 0.07 0.04 0.07 0.3 0.5
70673 Inline weir-Dn 0.07 0.04 0.07 0.3 0.5
70493 0.0'1 0.04 0.07 0.3 0.5
69651 0.07 0.04 0.07 0.3 0.5
69589 0-0'/ 0.04 0.07 0.3 0.5
69479 Inline weir-Op 0.07 0.04 0.0"] 0.3 0.5
69479 Inline Weir-Dn 0.07 0.04 0.07 0.3 0.5
69314 0.07 0.04 o.a"1 0.3 0.5
68798 0.07 0.04 0.07 0.3 0.5
67578 0.0'1 �.04 0.07 0.1 0.3
66768 0.0"] 0.�4 0.07 0.1 0.3
66055 0.0'] 0.04 0.07 0.1 0.3
65190 0.07 0.04 0.07 0.3 0.5
65125 Inline weir-Up 0.07 0.04 0.07 0.3 0.5
65125 Inline Weir-Dn 0.07 O.D4 0.07 0.3 0.5
St. Vrain River,I-25 to Junction
65050 ---- 0.0� 0.07 0.3 0.5
_'___ 0.04 _____
71770 0.07 0.04 0.07 0.3 0.5
�1765 0.0'1 0.04 0.07 0.3 0.5
"]1735 0.07 0.04 0.07 0.3 0.5
' "01 0.07 0.04 0.07 0.3 0.5
4 �.07 0.04 0.07 0.3 0.5
�B 0.0� 0.04 0.07 0.3 0.5
�1465 Lateral Weirs
�1465 Inline Weir-Op 0.07 0.04 0.07 0.3 0.5
�1465 Lateral Weirs
� ?1465 Inline weir-Dn 0.07 0.04 o.a7 0.3 0.5
71465 Lateral weirs
71168 0.07 0.04 0.0"1 0.3 0.5
���z8 ----- �.0'1 0.07 0.3 0.5
_____ 0.04 "___
70584 Lateral Weirs
70584 Inline Weir-Op ----- 0.�4 0.07 0.3 0-5
"'0584 Lateral Weirs
_'___ Q-�p _____
70584 Lateral Weirs
70584 Inline Weir-Dn ----- 0.07 0.09 0.3 0.5
70584 Lateral Weirs
'____ 0.04 '_'__
�0584 Lateial WeiYs
70235 0.07 0.04 0.07 0.3 0.5
69741 0.07 0.04 0.07 0.3 0.5
69359 Lateral Weirs
69359 Inline Weir-Up 0.07 0.04 0.07 0.3 0.5
69359 Lateral weirs
69359 Inline Weir-Dn 0.07 0.a4 0_07 0.3 0.5
69359 La[eral Weirs
69293 0.07 0.04 0.07 0.3 0.5
68844 0.07 0.04 0.07 0.1 0.3
68234 0.07 0.04 0.07 0.1 0.3
6'7624 0.07 0.04 0.07 0.1 0.3
67487 Lateral Weirs
67487 Inline Weir-Up 0.07 0.04 0.07 0.1 0.3
67487 Lateral Weirs
6"1487 IRline Weir-Dn 0.0'7 0.04 0.07 0.1 0.3
7 Lateral Weirs
S 'ain River,FULL RIVER
b �4 0.07 0.04 0.07 0.1 0.3
65735 Q.07 0.04 0.07 0.1 0.3
64600 0.07 0.04 0.07 0.1 0.3
64120 �.07 0.04 0.07 0.3 0.5
63640 0.07 0.04 0.07 0.3 0.5
63177.5 0.07 0.04 0.07 0.3 0.5
62715 0.0'1 0.04 0.07 0.3 0.5
59195 0.07 0.04 0.07 0.3 0.5
58515 0.0� 0.04 0.07 0.3 0.5
57401 p.0� 0.04 0.07 0.3 0.5
56496 0.1 0.04 0.07 0.3 0.5
56400 Bridge-Up 0.1 0.04 0.07 0.3 0.5
56400 Bridge-Dn 0.04 0.04 0.07 0.3 0.5
tF290 0.04 0.04 0.07 0.3 0.5
30 0.07 0.04 0.07 0.3 0.5
?0 0.07 a.04 0.07 0.1 0.3
.40 0.0� 0.04 0.0� 0.1 0.3
52370 0.07 0.04 0.07 0.1 0.3
______""_"'____'"____"'_______"_"'_"'"_""'"_"__'___'___'_____________________
---Summary of Statistics--
Minimum Maximum
Left overbank n Value: 0.04 0.1
Right overbank n Value: 0-07 0.07
Channel n Value: o.o4 0.0�
Contraction Coefficient: 0.1 0.3
Expansion Coefficient: 0.3 0.5
ROUGHNESS COEFFICIENT CHECK
'______'_____'_'_"__'__"______"__
TRP.NSITION LOSS COEFFICIENT CHECR
RS: 68798
NT TL 02 Contraction and expansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 66055
NT TL 01 This is section 4
Contraction and e�cpansion loss coefficients are 0.1 and o.3
They should 6e equal [0 0.3 and 0.5 respectively.
RS: 65050
NT TL 02 Contraction and expansion loss coefficients are 0.3 and o.5
respectively. However, this cross section is not at the structure.
They should be equal to 0.7 and 0.3.
r
RS: 71�7�
NT TL 02 Coatraction and expansion loss coefficien[s are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 71765
NT TL 02 Contraction and e�cpansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 71735
NT TL 02 ContTaCtion and expansion loss coeffiCients aYe 0.3 and 0.5
respectively. Howevez, this cross section is not at the structure.
They should be equal [0 0.1 and 0.3.
RS: �1701
NT TL 02 Contraction and e�cpansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal to 0.1 and o.3.
RS: 68239
NT TL ol This is section 4
Contraction and e�cpansion loss coefficients are 0.1 and 0.3
They should be equal to 0.3 and o.5 respectively.
RS: 67624
NT TL O1 This is section 3
Contraction and expanaion loss coefficients are 0.1 and 0.3
They should be equal [0 0.3 and 0.5 respectively.
R5: 64120
NT TL 02 Contraction and expansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
�. They should be equal to 0.1 and 0.3.
RS: 63640
NT TL 02 Contraction and e�cpansion loss coefficients are 0.3 and 0-5
respectively. However, this cross section is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 63177.5
9T TL 02 Contraction and expansion loss coefEicients aze 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal [O 0.1 and 0.3. �
RS: 62715
NT TL o2 Contraction and expansion loss coefficients are o.3 and o-5
respectively. However, this cross section is not at the structure.
� They should be equal to 0.1 and o.3.
k... � 59195 �
NT TL o2 Contraction and expansion loss coefficients are 0.3 and 0.5
respectively. However, this cross sec[ion is noe at the s[ructure.
They should be equal to 0.1 and 0.3.
RS: 58515
NT TL 02 Contraction and expansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at the struc[ure.
They should be equal to 0.1 and 0.3.
[2S: 55330
t7T TL 02 Contraction and e�cpansion loss coefficients are 0.3 and 0_5
respectively. However, this cross section is not at the structure.
They should be equal Go 0.1 and 0.3.
ROUGHNESS COEFFICIENT AT STRUCTURES
_"____'_'_"__'_____'_'____'_______
RS: 564�0
NT RS 02 The channel n value of 0.04 for the upstream internal bridge opening
section is equal or larger than the channel n value of 0.04 at Section 3.
Usually, the channel n value of the bridge opening section is
less than the channel n value of Section 3.
The selection of the n value(s) should be reevaluated.
R5: 56400
NT 2S o2 The channel n value of o.04 for the downstream internal bridge opening
section is equal or larger than the channel n value of 0.04 at Section 2
Usually, the channel n value oE the bridge opening section is
less than [he channel n value of Section 2.
The selection of the n value(s) sY,ould be reevaluated.
Vp'_'
CHECA-RAS Program, XS Check
Cross SecCion Location and Alignment Review
Project Fi1e: P:\3559\3559-ENG\CLOMA\COMBINED CLOMR MODEL\STVAAIN.prj
P1an File: P:\3559\3559-ENG\CLOMR\COMHINED CLOMR MODEL\STVRAIN.p02
�me[ry Fi1e: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.g03
w File: P:\3559\3559-ENG\CLOMR\COMHINED CLOMR MODEL\STVRAIN.f02
?or[ File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.xs
Selec[ed proEiles: 100 year
Date: 5/4/2006
Time: 10�1�:42 PM
SECNO Len Lob Len Chl Len Rob TopWdthAct Q Total Flow Code
___________________________________________________________________________
St. Vrain River,EXISTING LAKES
71599 345 345 345 905.51 1 B
71254 266 266 266 934.44 1 B
70988 315 315 315 1113.48 403.5 8
70673 Inline weir Up
70673 Inline Weir-➢n
70493 542 542 542 1116.86 403.5 B
69651 495 362 362 1368.61 518.9 B
69589 275 275 2�5 1485.95 518.7 E,6
694�9 Inline Weir-Up
69479 Inline Weir-Dn
69314 319 516 516 1513.73 518.7 B
68798 687 1220 lll2 1078.27 549.5� D,B
6�578 684 810 815 1024.36 549.57 B
56768 713 713 713 937.42 693.17 B
66055 1075 865 216 842.79 673.17 B
65190 140 140 140 1207.36 673.17 B
65125 Inline Weir-Up
65125 Inline Weir-Dn
65050 0 0 0 1052.�4 673.1�
St. Vrain River, I-25 to Junction
J1770 5 5 5 309.47 16700 B
71765 30 30 30 303.�8 16700 B
71735 67 6� 67 314 16700 B
���01 34 34 34 195.69 16700 C,B
'fl 26 26 26 332.97 16700 B
8 3�6 440 483 403.79 16700
..465 Lateral Weirs
�1168 376 440 483 607.89 16445.85
v072B 800.5 494 504.5 736.69 16297.5 H
70584 Latexal Weirs
�0235 800.5 494 504.5 989.55 16180.21
69741 268.5 448 455 i244.13 16182.3
69359 Lateral Weirs
69293 268.5 449 455 1410.4 16182.3
68844 391.5 610 556 1612.31 16151.43 D,B
68234 341.5 610 556 1�14.09 16151.43
67624 684 810 815 1561.15 16151.43 D,B
67487 Lateral Weirs
66814 1040 1079 1040 1573.38 16027.83 D,B
St. Viain RiveI,FULL RIVER
65735 95 1135 1025 1881.63 16700 D
64600 393.5 480 405 1784.85 16700
64120 393.5 480 405 1804.8 16700
63640 490 462.5 415 1748.32 16700
63ll7.5 490 462.5 415 1758.44 16700
62715 100 3520 100 1768.02 16700 B
59195 530 680 520 1704.OZ 16700 D,B
SB515 780 1114 480 1431 16700 B
57401 830 905 790 1454 16700 H
56496 233 206 1B0 2357.81 16700 D,H
56400 Bridge pl-Up
56400 Bridge pl-Dn
56290 �70 960 1165 1139.26 16900 D
55330 890 1360 1550 2636.3 16700 D,B
53970 740 730 820 3166.65 16700 D,H
53240 820 970 840 3060.55 16700 D,H
52370 950 1060 1150 2727.47 16700 D,B
__'_'_'__"___'__"'___"'_'_______________'__'___'___________'_'__________
B- �cked obstruction XS SC OS
� �tial depth XS SC 03
L jided flow XS SC 01
E=cross section extended XS SC 02
K=known water-surface XS SC 04
DISTANCE CHECA
_'________'___"
XS JT 01 Junction option is used.
For flood insurance study, this option should be used
if the [ribu[ary and main stream can have coincident peaks,
or it may be used for the stream without floodway.
It may also be used if the discharges at different time periods
are known from Che rainfall-runoff model.
How to remove Che junction is e�cpldined under Help.
i
,._ JT 03 The name of junction is : 65735
Trie reach length at the most downstream cross section Eor the
'St. Vrain River and I-25 to Junction' is not equal [o zero.
Please set the reach length equal to zero if juc[ion can be considered.
SPACING CHECK
INEFFECTIVE FLOW CHECK
______'_'______'___'___
DISCHARGE CHECK
_______"__'_"'
RS: 11168
XS oC 01 Discharge decreases in the downstream direction.
RS: 71168
XS DC o3 Discharge is difEerent between the upstream side and downstream
side of the structure
RS: 70728
XS DC 01 Discharge decreases in the downstream direction.
RS: 70235
%S DC 01 Discharge decreases in the downstream direction.
kS: 70235
XS DC 03 Discharge is different between the upstream side and downstream
side of the structure
. 1 68844
XS DC 01 Discharge decreases in the downstream dizection.
RS: 66814
XS DC 01 Discharge decreases in the downstream direction.
RS: 66814
xs DC 03 �ischarge is difEerent between the upstream side and downstream
side of the structure
RS: 62715
XS OC OS There is no flow on the right overbank a[ the downstream
cross section. There is no flow on the 1eEt overbank at this section.
XS OC 02 Constant dichazge used for the St. Vrain River,FULL RIVER
LOCATION CHECK
'__'"_"_______
BOUNDARY CONDITION CHECK
'_""_______'_""'_____'_
XS BC 02 The name of the stream is S[. Vrain River,I-25 to Junction
Normal S = 0.001 is specified as the upstream boundary
for profile 100 year
XS BC 02 The name of the stream is St. Vrain Aiver,FULL RIVER
Normal S = 0.0025 is specified as the downstream boundary
for proEile 100 year
%S 4C 03 Maximum number of iterations is 0
� It should not be less than 20.
LATERAL WEIRS CHECK
---END---
CHECK-RAS Program: Stncture Check
Project File: P:\3559\3559-ENG\CLOMA\COMHINED CLOMR MODEL\STVRAIN.prj
Plan File: P:\3559\3559-ENG\CLOMR\COMBINE� CLOMR MODEL\STVRAIN.p02
Geometry File: P:\3559\3559-ENG\CLOMA\COMBINED CLOMR MODEL\STVRAIN.g03
�'�w File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.f02
rt File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.br
�cted profiles: l00 year
�:.Le: 5/4/2006
Time: 10:ll:56 PM
RS Ma�cLoChord MnTpRd EGEL WSEL MinChE1 Structure
'_""______'_'______"_'__________'_'__'____'_"___'_____"'____'__'__'_'_____
St. Vrain River,EXISTING LAKES
71599 4828.58 4828.58 4827.2
71254 4829.SB 4828.58 4827.2 -
70988 4828.58 4828.58 4827.2
70673 4827.2 4828.58 4828.58 4827.2 Inline-Up
70673 4827.2 Inline-Dn
70493 4828.56 4828.56 4827.6
69651 4828.47 4828.47 4827.6
69589 4828.39 4628.39 4827.7
69479 4827.7 4828.39 4828.39 4827.7 Inline-Up
69479 482"l."l Inline-Dn
69314 4821.11 4821.11 4819.5
68798 4821.09 4821.09 4819.5
67578 4821.03 4821.03 4819.5
66768 4820.97 4820.97 4819.5
66055 4820.88 4820.87 4819.5
65190 4820.76 4820.75 4819.5
65125 4819.5 4820.76 4820.75 4819.5 Inline-Up
65125 . 4819.5 Inline-Dn
65050 4820.56 4820.56 4812
St. Vrain Aiver,I-25 to Junc[ion
71770 4833.96 4833.11 4822
71765 4833.88 4832.84 4822.7
71735 4833.79 4832.72 4822.34
71701 4832.79 4829.64 4821.95
71634 4831.21 4830.64 4819.15
'0B 4831.14 4830.65 4818.1
�8 4630.65 4830.2 4818.2
.a65 Lateral Weirs
70728 4829.95 4829.38 4818.25
70235 4828.98 4828.65 4817.4
� 70584 Lateral weirs
69741 4828.16 4827.87 4816.45
69293 4827.29 4826.87 4815.6
69359 Lateral Weirs
68844 4826.32 4825.B2 4814.75
68234 4825.12 4824.67 4814 �
67624 4823.96 4823.61 4813.45
66814 4822.48 4822.24 4812.85
69487 Lateral Weirs
St. Vrain Rivei,FULL RLVER
65735 4820.45 4820.09 4811.95
64600 4818.09 4817.95 4810.85
64120 4817.28 4817.12 4810.2
63640 4816.44 4816.29 4809.55
63177.5 4815.86 4815.79 4807.67
62715 4815.46 4815.37 4805.8
59195 4814.5 4814.35 4803.33 .
58515 4814.13 4814.04 4803.85
57401 4813.65 4813.52 4803
56496 4613.03 4812.87 4802.55
56400 4814.4 4811 4812.63 4811.56 4802.55 Bridge #1-Up
56400 4814.4 4811 4812.27 4811.5 4802.15 Brid9e #1-Dn
56290 4811.96 4810.5 4802.15
55330 4809.25 4809.06 4799.75
53970 4808.04 480'7.92 4798.15
53240 4806.47 4805.38 4798.15
52370 4802.6 4802.4 4795.55
._________"""""' ' """"___'_"_""_______________"____
. (/REACH: St. VraiR River, EXISTING LAKES
R..cR STATION: 70673
TYPE OF STRUCTU[2E: Inline
_____"___________'_"________'_'______'____"'"___'_______'_______"_"___'__'___
Description:
Distance from Upstream XS: 56
Deck/Roadway Width: 140
Weir CoeffiCient: 2.63
Maximum allowable submergence for weir flow: 0.95
Elevation at which weir flow begins: 0
Weir crest shape: Broad Crested
S�- River Length wSEL Surch. EGEL Topwidth
; Station Channel Actual �
S_____""__________________________'__'________'_'___'
_ � 71254 266.00 4828.58 4828.58 934.44
3 70988 315.00 4828.58 4828.58 1113.48
70673 140.00 4828.58 4828.58 0 Inline Weir-Up
70673 56.00 0 Inline Weir-Dn
2 70493 542.00 4828.56 4828.56 1116.86
1 6%51 362.00 4828-4� 4820.47 1368.61
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta R Elev
_'____'___'______"'____""__'__"____ _________________'_____________'
1 490 1670 4827 490 1650 4827
INLINE WEIR:
Inline Weir Gate: �
�ist IwD: 56 Height: 0 width o Invert: o
Gate Coeff: 0 GateType: TrunExp 0 OpenExp: 0
HeadExp: 0 TrunHght: 0 Weir Coeff: 0 WeirShape:
GateNumber: 0
LCntStaU: 0 RCntStaU: 0 LCntStaD 0 RCntStaD 0
____""_____'____'_'_____'_'__'_'__"__"_____'
MinTopRd: 4827.21
Gate ID Gate q Open Gate Q 4 weir Q Total Flow Type
Open Hght
_____________________________________________"________________________________
0 1 4827.22 403.5 403.5 Weir F1ow
' __'_________ _'_________________'_______
�
Opening Type SCagStaL StagStaR EncStaL EncStaR LIEStaS RlfStaS
______"_________________' ________________________________________
Inline 0 -9999 U
0 -9999 D
____________________________________________________________________'__________
LAbutSt RP.butSt LMn7pRd RMnTpRd MnTpRd Mx1.oCd
"_'_'_________'______'_'_'___'__'__"___'__'____'__'_'
0.00 0.00 4827.20 4827.20 4827.20 0.00 U
0.00 0-00 4827.20 482'1.20 4827.20 0.00 D
GEOMETRIC CHECK
TYPE OF FLOW CHECK
___'_____'_"""_'
RS: 70673
IW TF 01 Type of flow is weir Flow because,
1. Gate Flow discharge is equal to 4827.22
2. weir Flow discharge is equal to 403.5
DISTANCE CHECK
_'_____"_""""
INEFFECTIVE FLOW CHECK
'_'________'__""_____'
RS: 69651 This is Section 1
ST IF 07 Ineffective flow option was considered at this section.
However, it should be a fully e�cpanded cross section. �
Ineffective flow stations and elevations should be cleared from
this section, unless the ares beyond the ineffective flow stations
.. are not within the flow path of the stream.
; This message should be ignored if this section is Section 3 of the downstream
structure.
__________________________' ______________________"_"_____'__"'
RIVER/REACH: St. Vrain River, EXISTING LAKES
RLVER STATION: 694'/9
TYPE OF STRUCTURE: Inline
Description:
Distance from Upstream XS: 110
Deck/Roadway Width: 55
Neir CoeffiCient: 2.63
Maximum allowable submergeace for weir flow: 0.95
�'�vation at whicri weir Elow begins: 0
�� crest shape- Broad Crested
1______ __________________________
Sec River Length wSEL Surch. EGEL Topwidth
Station Channel Actual
'_""""__'__'__'__________'__'________'_"___"'____________"'___"
4 69651 362.00 4828.47 4828.47 1368.61
3 69589 275.00 4828.39 4828.39 1485.95
69479 55.00 4828.39 4828.39 0 Inline Weir-Up
69479 110.00 0 Inline weir-Dn
2 69314 516.00 4821.11 4821.11 1513.73
1 68798 1220.00 4821.09 4821.09 1078.27
__'____'_'_'_"_____"_'______'""'__'__'___'_'______'_______'_'___'_______'_'_
Ineffective Plow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta R Elev
'_"""'_"__'_"__'_'_'_'_________'_"_____'_"_'__'_'_______"'_________'__'
1 275 1420 4826 275 1420 4826
INLINE WEIR:
Inline weir Gate:
Dis[ IwD: 110 Height: 0 Width 0 Invert: 0
Gate Coeff: 0 GateType: TrunExp 0 OpenExp: 0
HeadEsp: 0 TrunHght: o weir Coeff: o weirShape:
CateNumber: 0
LCntStaU: 0 RCritStaU: 0 LCntStaD 0 RCntStdD 0
'__ _"____'____'_____'
MinTopkd: 4827.71
� ID Ga[e # Open Gate Q Q Weir Q Total Flow Type
Open Hght
" ________________________________________
� 0 1 4827.72 518.7 518.7 WeiY Flow
Opening Type StagStaL SCagStaR 6ncStaL EncStaR LlfStaS RlfStaS
__________"_________'__' ________ '__________'_'____'_______
Inline 0 -9999 U
0 -9999 D
_______"__ _________"'_____"�_________p__'____�___'_______'___
t.nnutSt RAbutSt LM[� Rd RMnT Rd Mn Rd MxI,oCd
__________'__"_________" "_______ __'__"________"'_
0.00 0.00 4827.70 482"/.70 4027.70 0.00 U
0.00 0.00 482"7.70 4827.70 4827.70 0.00 D
GEOMETRIC CHECK
__"_______'"____
TYPE OF FLOW CHECX
RS: 69479
IW TF 01 2ype of flow is Weir Flow because,
1. Gate Flow discharge is equal to 4827.72
2. weir Flow discharge is equal to 518.7
DISTANCE CHECK
_"'_______"_'
INEFFECTIVE FLOW CHECI(
'______"_____'"______'
69651 This is Section 4
. ��' 07 Ineffective flow option was considered at this section.
However, it should be a fully e>cpanded cross section.
ZnefEective flow stations and elevations should be cleared from
this section, unless the areas beyond the ineffective flow stations
are not within the flow path of the stream.
This message should be ignored if this section is Section 2 of
[he upstream structure.
RS: 68798 This is Section 1
ST IF 07 IneffecCive flow option was considered at this section.
However, it should be a fully espanded cross section.
Ineffective flow stations and elevations should be cleared from
this section, unless the ares beyond the ineffective flow stations
are not within the flow path of the stream.
This message should be ignored if this section is Section 3 of the downstream
� structure.
�
____"'___'____"_____'________"'_________'__"___"_'______"'_"'_'__"_"__
RIVER/REACH: St. Vrain River, EXISTING LAKES
RIVER STATION: 65125
TYPE OP STRUCTURE: Inline
_'___'___'_""""_____'_'"_'_"'_'______'_'_"____""'__'_____'""__"_____"___
Oescription:
Distance from Upstream XS: 65
Deck/Roadway width: 25
Weir Coefficient: 2.63
Maximum allowable submergence for weir fLow: 0.95
Elevation at which weir Elow begins: 0
Weir crest shape: Broad Crested
_____'__________""__________'_______'_"_____""'___'__________'__"_'_""_
Sec River Length WSEL Surch. EGEL TopWidth .
Station Channel Actual
______________________________________________________________'_________'______
4 66055 865.00 4820.87 4820.88 842.79
3 65190 140.00 4820.75 4820.76 1207.36
65125 25_00 4820.75 4820.76 0 Inline WEiT-Up
65125 65.00 0 Inline Weir-Dn
2 65050 0.00 4820.56 4820.56 1052.74
'___'_____'___'_"_____'_____'____""__"'__'_""'___'__'_'__________________
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta A Elev
______'__'_"__'___'__'________"___'______'___'_____'_"'_"'__'___""____'__
__'_'____'_"_'______'___'___'___'____'_____'_____________'__"'___""_'"_'____
�fE WEIR:
�e weir Gate:
Dist IwD: 65 Height: G Width 0 Invert: 0
Gate Coeff: 0 GateType: TrunExp 0 OpenErzp: 0
HeadEacp: o TrunHght: 0 Weir CceEf: 0 WeirShape:
GateNumbeT: 0
LCntStaU: 0 RCntStaU: C LCnLStaD 0 RCntStaD 0
__"_'_'_'_'_____'_"__"_____"__'____'_'_________________""'__
MinTopRd: 4819.51
Gate ID Gate p Open Gate Q Q Weir Q Total Flow lype
Open Hght
___'_"_________"'________________________'_'___'_"_"_"____'_________'_____
0 1 4819.52 673.17 673.17 Weir Flow
"'____________'_____'_________'___"___'__'__'___'______'_______________'__"'
Opening Type Stag5taL StagStaR EncStaL EncStaR LIfStaS RIfStaS
__'_""_____________"'________'________________________'________'______'__'__
Inline -88 -BB U
-88 -BB D
______"'____________'_________________________________'____________'___""___
LAbutSt RAbutSt LMnTpRd RMnTpRd MnTpRd MxLOCd
"'________"'____'_____'__"'_'""' "'
0.00 0.00 4819.50 4979.50 4819.50 0.00 U
0.00 0.00 4819.50 4819.50 4819.50 0.00 D
GEOMETAIC CHECK
_"'___"________
TYPE OF FLOW CHECK
__'__"__'_'__'___
65125
I�.. _c ol lype of flow is weir Flow because,
1. Gate Flow discharge is equal to 4819.Sa
2. Weir Flow discharge is equal to 673.17
OISTANCE CHECK
_"______"_'__
I�EFFECTIVE FLOW CHECK
- ---- --------
------------- ------------ -------------- ---- --------------
RIVER/REACH: St. Vrain River, I-25 to Junction
°T^ER STATION: 71965
�' OF STRUCTUAE: Inline
Y_'___'___"_____'______'___"'____________'__'__'_____'__________"___'____
Sec River Length w5EL Surch. EGEL Topwidth
Station Channel Actual
_______________________________________________________________________________
4 71634 26.00 4830.64 4831.21 332.97
3 71608 440.00 9830.65 4831.14 403.79
2 71168 440.0a 4830.2 4830.65 607.89
1 70728 494.00 4829.38 9829.95 736.69
_____"_'__'_"'______"_____________'___"_______'___"__'_____'______"______
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta R Elev
1 2283 4312.1 4843 2563 4564 4843
____"'_'_____'___"__'_'_'_'______'______'___________'_"'_'________'__'______ �
GEOMETRIC CHECK
_____________"_'
RS: ]1465
ST GD o3 The end station of 2000 from upstream road/weir data
is less than [he end station of 4312.1 from upstream internal
section/section 3.
The high chord elevatio� of 4830 for the end road/weir station is
greater than the ground elevation of 48ie.4e1 Eor the same ground station.
The road/weir profile may need to be extended.
TYPE OF FLOW CHECK
ANCE CHECX
.�__'_'___'_
?NEFFECTNE FLOW CHECK
'____'___"'___'___"__
_' ______"________'_"'
RIVER/REACH: 5[. Vrain River, I-25 to Junction
RIVER STATION: 70584
TYPE OF STRUCTURE: Inline
_"'_________'________'_'_"__'_______'_"__________"_______"_'_________"__'
Sec River Length WSEL Susch. EGEL TopWidth
Station Channel Actual
____"'___'_______'_______'___'_______""___________ "_____"""
4 7ll68 440.00 4830.2 4830.65 607.89
3 'J0728 494.00 4829.38 4829.95 736.69
2 70235 494.00 4828.65 4828_98 9B9.55
1 69741 448.00 4827.81 4028.16 1244.13
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta R E1ev
" _ '"________________'___"'_"_____'""_____"_______
1 2866 4932 4843 3068 4469 4843
GEOMETRIC CHECK
___________"'___
RS: 70584
ST ^-D 03 The starting station of 2430 from upstream road/weir data
� is greater than the starting station of 2129 from upstream internal
section/ secion 3.
� The high chord elevation of 4829.5 Eor the starting road/weir station is
greater than the ground elevation of 4824.25 Eor the same ground sta[ion.
The road/weir profile may need to be extended.
RS: 70584
ST GD 03 The end sta[ion of 3250 from upstream road/weir data
is less than [he end station of 4932 from upstream internal
section/section 3.
The high chord elevation of 4828.7 for the end road/weir staCion is
greater than the ground elevation of 4823.6a8 Eor [he same ground station.
The road/weir profile may need to be extended.
TYPE OF FLOW CHECK
__"_'_______'____
?.NCE CHECK
INEFFECTIVE FLOW CHECK
'____'__________'___"_
__"_______'_'_____"__'_'____"_"___'__'________'_______'______'___"_____'__
RIVEE2/REACH: St. Vrain River, I-25 to .7unction
RIVER STATION: 69359
TYPE OF STRUCTIIRE: Inline
_"____'__'______"_"_'_'___'____"___'___"__'_"_____"_____"'_'____'"____""_
SeC River LeRgth WSEL SllYCh. EGEL TopWidth
Station Channel ACtUal
' '____________________________________________________________________
4 70235 494.00 4828.65 4828.99 989.55
3 69741 448.00 4827.81 � 4828.16 1244.13
2 69293 949.00 4826.87 4827_29 1410.4
1 68844 610.00 4825.82 4826.32 1612.31
'_'_'______"____'__"_'______'___'_______'________"'__"_________'__'____'_'_
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L SLa R Elev
"_'__'_"'____"_'__'____'_____"__'____________"____"___'______'____"___"'
_ 3270 5227.1 4843 3477 4777 4843
__'__'__'_____________"_'________________"___'___'_________'_______'_'_""__
GEOMETRIC CHECK
'___'___"'__"__
R' 69359
. 03 The starting station of 355o from upstream road/weir data
is greater than the starting station of 2009 from upstream internz?
section/ secion 3.
The high chord elevation of 4828 for the starting road/weir station is
greater than the ground elevation of 4822.917 for the same ground station.
The road/weir profile may need to be extended.
TYPE OF FLOW CHECK
_____'_"___'__'__
DISTANCE CHECK
______'_'___'__
INEFFECTIVE FL0W CNECK
'"________'_"_______'_
__'______"____'__'_'____" " '""_'__'__________'__
RIVER/REACH: St. Vrain River, I-25 to JUnction
RIVER STATION: 67497
TYPE OF STRUCTURE: Inline
Sec River Length WSEL Surch. EGEL TopWidth
Station Channel Actual
___'___________________________________________________________________________
4 68234 610.00 4824.67 4825.12 1714.09
3 67624 810.00 4823.61 4823.96 1561.15
2 66814 1079.00 4822.24 4822.48 1573.38
Ineffective Flow, Section 3 Zneffective Flow, Section 2
Sta L Sta R Elev Sta L Sta R Elev
GEOMETRIC CHECR
_______""____'"_
TYP6 OF FLOW CHECK
__'_"_'__________
DISTANCE CHECK
'____'_'______'
INEFFECTIVE FLOW CHECK
___'___'_'__"__"'___' �
1_'_'_____'___________________'_'____"____'__'__
�_.ER/REACH: St. Vrain River, FULL RIVER
RIVER STATION: 56400
TYPE OF STA[1CTURE: Bridge
�escription: Bridge at WCR13
Distance from llpstream XS: 112
Deck/Roadway Width: 65
[veir Coefficient: z.�
Maximum allowable submergence for weir flow: 0.95
Elevation at which weir flow begins: 4811
weir crest shape: Broad Crested
Sec River Length WSEL Surch. EGEL TopWidth
Station Channel Actual
4 57401 905.00 4813.52 4813.65 1454 .
3 56496 206.00 4812.87 4813.03 2357.81
56400 65.00 4811.56 4612.63 190.39 Hridge J!1-Up
56400 29.00 4811.5 4812.27 790.4 Bridge #1-Dn
2 56290 960.00 4810.5 4811.96 1139.26
1 55330 1360.00 4809.06 4809.25 2636.3
IneffeCtive Flow, SeCtion 3 Ine£EeCtiVe FlOw, SeCtion 2
Sta L Sta R Elev Sta L Sta R Elev
_ "'___________'___ __'____"____'___'______'_________
1 1280 3203 4811 3665 7127 4819
2 3721 7132 481'1
i ,'�E:
eridge Name: Bridge pl
LowFlowMethod: xighest Energy Answer
Momentum Cd: 2
HighFlowMethod: Pressure and Weir flow
SluiceGate Cd: 0 Submerged Cd: 0.8006408
_____________'___' '"' '_______'
Additional eridge Parameters
Add Friction component to Momentum
Ib not add Weight component to Momentum
Class B flow critical depth computations use critical depth
inside the bridge at the upstream end
Criteria to check for pressure flow = Upstream energy 9rade line
___'___"" ____'____'__'_____'_______'_____"_______'______"'______"
MazcLowChord: 4814.4 MinTopRd: 4817.01 MinElPrs: 4814.4
Ooening Type StagStaL StagStaR EncStaL EncStaR LlfSta5 RIfSta5
'______'_'___________________"'________""_____'__________"________" -U
Bridge
D
LAbutSt RAbutSt LMnTpRd RMnTpAd MnTpRd Mxl.oCd
" ___'______'_'_'___________________"'__ ___"____'__
BTidge iFl 3465.24 3664.56 4811.00 4817.00 4811.00 4814.40 U
3465.52 3664.58 4811.00 4817.00 4811.00 4814.40 D
Name Q Total. Q Struc 4 weir Selected Method Flow Type
____"____" '______"_____"_____"___�'__""_"'_"_'____________'
F � #1 16700 12373.06 4326.94 Ener /Weir Low and Weir Flow
GEOMETRIC CHECK
________""______
T'!PE OF FLOW CHECK
RS: 56400 This is Bridge #1
BR Lw 01 Type of flow is 1ow and weir flow because,
1. EGEL 3 of 4813.03 is greater than MinTopRd of 4811.01.
2. EGEL 3 of 4813.03 is less than MxLOCdU of 4814.40.
DISTANCE CHECK
___________"__
#FECTIVE FLOW CHECK
' '__'______'________' .
P.S: 5�401 This is Sec[ion 4 �
ST IF o7 Ineffective E1ow option was considered at this section.
However, it should be a fully e�:panded cross section.
Ineffective flow stations and elevations should be cleared from
this section, unless the areas beyond the ineffective flow stations
are not within the flow path of the stream.
This message should be ignored if triis section is Section 2 of
the upstream structure.
RS: 55330 This is Section 1
ST IF 0� Ineffective flow option was considered at this section.
However, it should be a fully expanded cross section.
Ineffective flow stations and elevations should be cleared from
this section, unless the ares beyond the ineffective flow stations
are not within the flow path of the stream.
This message should be ignored if this section is Section 3 of the downstream
structure.
---END
�
STVRAIN.rep
.. HEC-RAS Version 3.1.3 May 2005
U.S. Army Corp oE Engineeis
Hydrologic Engineering Center
609 Second Street
Davis, California
X X %XXxxX XXXX XXXX XX XxXX
x x x x x x x x x x
x x x x x x x x x
xxxxxxx xxxx x xxx xxxx xxxxxx xxxx
x x x x x x x x x
x x x x x x x x x x
x x xxxxxx xxxx x x x x xxxxx
............................«....,.......,,._,.».,...,..........._......,,,,,__.
PROJECT DATA
Project Title: Pie & Post Construction Model
Project File : STVRAIN.prj
Ru� Date and Time: S/4/2006 10:12:05 PM
Project in English units
Project Description:
St. Vrain Rivez Pre and Pos[ Constcuction Model
This model was originally a
copy of an Army Corps of Engineers Study done on the St. Vrain River.
Modifications have been made to the model to accoun[ for recent bridge and topo
changes.
. LOCATION: WELD COUNTY,
COLORP.DO
STREAM:
SAINT VRAIN CREEK
�ESCRIPTION: HEC-RAS INPUT FILE
♦
+�tsa<+ii:::.3..:.:.....:..:x+R..++t++i+i+•x+xa�+x.r.:.>rxx.x:.x�x.:+�:.��»:rxx
PLAN DATA
Plan Title: Pre Project P1an
Plan File : p:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.p04
Geometry Ti[le: Pie Project Geometry Oata
Geometry File : p:\3559\3559-ENG\CLOMR\COMHZNED CLOMA MODEL\STVRAIN.g02
Flow Title : ProjeCt Flow Data
Flow File : p:\3559\3559-ENG\CLOMR\COMBINEO CLOMR MODEL\STVRAIN.f02
Plan Description:
The pre-project plan represents ihe field conditions as of Dec. 2005. The high
water eleva[ion of the existing ponds south of the St. Vrain River were
surveyed, however, much oE the topo on the south of Ghe St. Vrain 2iver was
taken from the original Army Corps of Engineers s[vdy from 1977.
Plan Summary Information:
Number of: Cross Sections = 43 Multiple Openings = o
Culver[s = 0 Inline Structures = 3
Bridges = 1 Lateral Stiuc[ures = 4
Page 1
STVRAIN.rep
, Computational Information
' Water surface calculation tolerance = 0.01
Cri[ical dep[h calcnlation tolerance = 0.01
Maximum number of iterations = 40
Maximum difference tolerance = 0.3
Flom tolerance factor = 0.001
Computation Options
Cri[ical depth computed only whzre necessary
Conveyance CalculaCion Method: AC breaks in n values only
Friction Slope Method: Average Conveyance
Computa[ional Flow Regime: Subcritical Plow
t:.:.:::.:.x:xxR��.x*�t�«x��E�rtrt.x,...:.:::i�:r:�t..rxti*i�rsx..xr.:..�:+:a...i•
FLOW ➢ATA
Flow Ti[le: Project Flow Data
Flow File : p:\3559\3559-ENG\CLOMR\COMBINED CLOMR MOOEL\STVRAIN.f02
Flow Da[a (cfs)
+�x:�x+:xx�wiwxwrrrR�Rrww++:.:ra�:.ia�x*xrw.rxR++::.+t+.+:*�..xrrw�wx�+x.xri+xx:t::F+»sx+.����r�xw�i..+a•
**River Reach RS * 100 year 500 year 10 year 50
year r
* St. Vrain River I-25 to Junction�1�70 ' 16700 41960 5950 .
12850 '
* St. Vrain River EXZSTING LAKES 71599 ` 1 1 1
1 *
* St. Vrain River FULL RIVER 65735 ' 16700 41960 5950
12850 *
::.:..:.....:.a+a...:.+.+....««.++x.:.:.....+.+*++:,...:..:a....w...xxx.::x:.:........+.......+..:.......
Bonndary Conditions
, +..:.......+...............:x:......x.x.,x...........+..:::::s.....:.+.....x+xxx:....+....+a...a..+....+
e • River Reach Pmfile ` Upstream Downstream *
� r++:w�.i«x�axx«x��tx.�w.:wR:x:.tt.��K«.:.�:t:t*a�.��x.r:r::::r�+i�.«w++r+w:.a�x.++�++x�+x�+.+++w�.Krt.Kr�
* St. Vrain River I-25 to Junction100 year * Normal S = 0.001 , *
* St. Vrain River I-25 to Junction500 year * Normal S = 0.001 `
* St. Vrain River I-25 to Junctionl0 year • Normal S = 0.001 '
' St. Vrain River I-25 to Junction50 year • Normal S = 0.001 '
* St. Vrain Rivei FULL RIVER 100 year * Noimal S = 0.0025 •
� St. Vrain RiVeY FULL RIVER 500 yeaY • NOYmal S = 0.0025 '
* St. VYain RiveY FULL RIVER 1� yeaY ' Normal S = 0.0025 '
� St. Vrain River FULL RIVER SG year * Nozmal S = 0.0025 *
.....+..x+.x:....:,.::..:+.+....:::,.....x.++:...+.......+:.,::..w..x.x...xx...+:...:......»+..:.x...a..
..:.:..,+..+.......++.x.xxx.+.:+..x+:..........+:,::::..+.x..xx,:.:.a:..++.x.x.:
GEOMETRY DATA
Geometiy Title: Pre PYojeCt GeometTy Oata
Geometry File : p:\3559\3559-ENG\CL0MR\C0MBINED CLOMR MODEL\S1'VRAIN.g02
Reach Connection Table
+..:+....+......+.++�a..�+.+..a.......+..wi�.:.......++x«++.a..x+.t�.•..+.+......
* River Reach * Upstream Boundary * Downstream Boundary *
.+.+.... x .,. +:.........w:....+++.+w,++.+w..x�.,:+.......x+�..++...+..w.x..+++.
" St. Vrain River EXISTING LAAES " * 65735 *
' SL Vrain Aiver I-25 to Sunction ' * 65735 •
• St. vrain River FULL RIVER • 65735 ` �
ti::�+:.xrrrxrrxxr+:��xrxw+xx�>tiR�RR.:i+w*rxr+:.+.tr+.�:i:at.�+a�vxwrrxxr�++tr+r
7UNCTION INFORMATION
Name: 65735
Descrip[ion:
Energy computation Method
Length across Junction Tributary
� River Reach River fteach Length Angle
St. Vrain River I-25 to dunction to SL Vrain River FULL RIVER 965
Page 2
STVRAIN.rep
St. Vrain River EXISTING LAKES to St. Vrai❑ River FULL RIVER 30
CROSS SECTION
RIVER: SC- Vrain River .
REACH: EXISTING LAKES RS: �1599
INPIIT
Descrip[ion: This cross-section is approximately 40 feet downstream of ihe
rip-rap rundown.
Sta[ion ElevaCion Data num= �
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
«.+:.:.............:.::..+....:..+...+....«.+.:.............:....+......_+.:�...
595 4840 985 4825 10"/0 4815 ll55 4813 1681 4813
1810 4B31 1858 4832
Manni�g's n Values num= 3
S[a n Val Sta n Val Sta n Val
..«......::.......::+.+:.........++.....+x.+.:.. �
5"/S .0� 985 .04 1858 .0'1
Bank Sta: LeEt Right Lengths: Left Chaanel Right Coeff Contr. Expan.
985 1858 345 345 345 .1 .3
Hlocked Obstructions num= 1
Sta L Sta R Elev
:+.+t+:+.:::+.+:i�ti:+t:
595 18�� 4827.2
CROSS SECTION OUTPUT Profile #100 year
•:t.:.i:xt+:«:::::::+t.tx.+awr.xw.:::.x.:.+iit�t«++.�++r.:.:e:i.t�.xt�t��a+++y.��a�kxx r:+n:+:t�:
* E.G. Elev (fU * 4828.58 * Element * Left OB • Channel * Right OB *
* Vel Head (fU * 0.00 * wt. n-Val. " 0.070 ' 0.040 * *
* w.S. Elev (ftl * 4828.58 • Reach Len. (ft) " 345.00 * 345.00 * 345.00 '
� Czi[ W.S. (ft) • * Flow Area (sq ft) " 109.01 • 1107.65 * *
* E.G. Slope (ft/ft) •0.000000 * Area (sq ft) * 109.01 ' 1107.65 * "'
* Q Total (cfs) * 1.00 � Flow (cfs) * 0.05 • 0.95 * *
, * Top Width (ft) * 905.51 * Top Width (£tI ' 97.86 ' 807.66 * *
• Vel Total (ft/s) * 0.00 * Avg. Vel. (ft/s) ' 0.00 • 0.00 " *
* Max Chl �pth Iftl * 1.38 * Hydr. Depth (fU * 1.11 * 1.3'1 * *
* Conv. Total (cfs) * 532"13.2 • Conv. (cfsl * 2486.1 * 50787.1 w `
* Length Wtd. (ft) * 345�.00 * Wetted Per. (ft) ' 9"1.88 * 807.75 • `
* Min Ch E1 (ft) * 4827.20 + Shear (lb/sq fU * 0.00 � 0.00 * *
* .41pha * 1.06 * Stream Power (lb/ft s) * O.oO * o.00 * *
* Frctn Loss (f[) ` 0.00 * Cum Volume (acre-fU ' 4.55 * 218.69 * 1.59 *
* C & E Loss (EU * 0.00 * Nm SA (acres) " 4.66 • 155.31 * "
+I+h+k4;kY'.lkY+T**1n'kRi'.!*4*#'!if#+#}i#+#Ri**f1'.lMA11:1�.!*!f+lki4##Y+#ii#i1f*+�.lf!*Ikift*k'kf1>+k#k*41i
CROSS SECTION OUTPUT Profile #500 year
.F�.a+.+.:++.+.«...+..+:+�++at+++t++i++�tr:iir:i.+++.+++++�++�+�+tiwwii�+xxr>.rx«xaxx++�+���r�we�•
' E.G. Elev (ft) * 4831.08 * Element ` Left OB * Channel � Right OB *
E Vel Nead (ft) * 0.00 i Wt. n-Val. * 0.0�0 • 0.040 * *
* W.S. Elev (ft) • 4831.08 • Reach Len. (ft) * 345.00 * 345.00 * 345.00 *
* Crit W.S. (fU * t Plow Area (sq ft) * 439.14 * 3149.�2 * '
* E.G. Slope (ft/ft) 'o.000000 * Area (sq ft) * 439.14 * 3149.72 * *
* Q Total (cfs) * 1.00 • Flow (cfs) * 0.06 * 0.94 * *
* Top Wid[h (fU * 995.07 + Top Width (ft) • 166.20 * 828.87 � *
• Vel Total (ft/s) * o.00 w Avg. Vel. (ft/s) * 0.00 * 0.00 * '
* Max Chl Dpth (ft) * 3.88 * Hydr. Depth (ft) * 2.64 * 3.80 * *
' Conv. Total (cfs) +302676.9 * Conv. (cfs) * 17811.2 *284865.8 * *
* Length Wid. (fU * 345.00 * Wetted Per. (fi) • 166.27 * 829.13 • *
• Min Ch E1 (ft) * 4827.20 • Shear (lb/sq fU * 0.00 * �.00 * *
* Alpha * 1.10 * Stream Power (lb/ft s) ^ 0.00 * 0.00 * *
'" Frctn Loss (ft) * 0.00 ' Cum Volume (acre-ft) * 20.29 " 787.41 " 3.39 •
R C 6 E Loss (ftI * 0.00 * Cum SA (acres) * 7.99 R 166.03 * •
+*'RAk14rt-.!R#Ylfk'ht*Rx+#f1**A'kMM'.!'.!'RTliftfFf�Yiffi4lf#Y#*M**t�.!#n%**1f4*A1#'A1'.!!'.11:ftf�.!'.!!!flR�.lkiTtstt
CROSS SECTION OUTPUT Profile #10 year
x.:xx:x:«..x....w+s.:..�.w�+....�.+:.««.....a.«......:.....w�.:.x+a.x.x.....:.�++�+.+.:+....+.+
* E.G. Elev (ft) * 4827.78 * Element � Left OB • Channei * Right OH *
R Vel Head (ft) " 0.00 " W[. n-Val. � 0.070 * 0.040 ` *
* W.S. Elev (ft) * 4827.78 * Reach Len. (ft) " 345.00 * 345.00 * 345.00 *
* Cri[ W.S. (ft) * � Flow Area (sq ft) ' 39.78 * 467.11 * "
• E.G. Slope (ft/ft) •0.�00000 ` Area (sq ft) * 39.78 * 467.11 ` *
Page 3
STVRAIN.rep
� ' Q Total (Cfs) R 1.00 * Flow (cfs) * 0.04 * 0.96 * •
t Top Width (fU * 878.05 ' Top Width (ft) * 76.10 ' 801.95 * *
* Vel To[al (ft/sl = 0.00 * Avg. vel. (ft/9) t 0.00 ' 0.00 " '
• Max Chl �p[h (ft) * 0.58 ' Hydr. Depth (ft) • 0.52 ' 0.58 * *
* Conv. Total (cfs) � 12649.� * Co�v. (cfs) * 54�.9 12101.7 • "
* LengGh WCd. (Et) * 345.00 ' Wetted Per. (fU ' 76.11 " 801.99 ' *
' Min Ch E1 (ft) ' 4827.20 * Shear (lb/sq fU * 0.00 * 0.00 � *
* Alpha = 1.04 * S[ream Power (lb/ft s) ' 0.00 * 0.00 * *
* Frctn Loss I£U * 0.00 � Cum Volume (acre-ft) • 0.79 � 36.59 R 0.58 *
� C � E Loss (ftl * 0.00 * Cum SA (acres) ` 4.11 * 15�.03 ' *
:..+...,.....:...,..,,..::.:.:...x.«....:..a++..a......::.,...:........:«..::.............x:.«.�
CROSS SECTION OUTPUT Profile #50 yeax
:.:r��.i....:.::.w::.:��kiira+t+�a:.r�:.xt+Ftt<<«�+xx.:.+.++�t.��+R��xx.::t�t.+�+�+�.�K.,+x+.+t.+�
* E.G. Elev (fU • 4827.80 * Element * Left OB * Channel � Right OB *
� Vel Nead (fU " 0.00 * Wt. n-Val. " 0.070 • 0.040 * *
• W.S. Elev (ft) * 4827.80 • Reach Len. (ft) + 395.00 ' 345.00 * 345.00 *
* Crit W.S. (ft) * ' Flow Area (sq ft) t 41.12 * 481.20 • *
* E.G. Slope (ft/ft) *0.000000 * Area (sq fU ' 41.12 " 48L 20 * * �
' Q To[al (cfs) ' 1.00 * Flow (cfs) * 0.04 * 0.96 " ^
• Top Wid[h (ft) � 878.66 * Tap Width IfU " 76.58 * 802.08 ' •
* Vel Total fft/s) * 0.00 " Avg. Vel. (ft/s) ' 0.00 * 0.00 * *
* Max Chl npth (E[) * 0.60 ^ Hydr. Depth (ft) * 0.54 + 0.60 a *
• Conv. Total (cfs) ' 13291.9 • Conv. (cfs) * 5�6.6 * 12715.2 • *
• Length Wtd. (fU * 345.00 • Wetted Per. (fU ' '16.59 * 802.12 • `
= Min Ch E1 (ft) * 462"1.20 • Shear (lb/sq fU ` 0.00 * 0.00 * '
= Alpha * 1.04 * Stream Power Ilb/ft s) i 0.00 • 0.00 • '
• Frctn Loss Ift) + 0.00 ` Cum Volume (acre-ft) ' 1.08 * 76.62 * 1.25 *
' C & E Loss (ft) * 0.00 '� Cum SA (acres) • 4.17 * 15�.81 ' *
�.:.:::.r.+.it�r.�+rati�wrxY�.t++rr.ta+�::+i�rr.»r,.++++.«t�Rr::.t+t�Kxwcwx:i+«at«i*r++tx++«xx
CROSS SECTION
RIVER: St. Vzain River
REACH� EXISTING LAKES RS: "/1254
� INPUT
Description:
Station Elevation Da[a num= 13
S[a Elev Sta Elev Std Elev Sta Elev Std Elev
- Fttiitfi#kMf'Ri�kt1'FtFi41i##YM11'.lfttlYfl:RRFtA444IiMfk�i4#Y'�1:+�F1#t1#+i'�ki4t4iif'fY
490 4858 655 4844.5 �30 4841 905 4835 975 4836
1000 4833 1151 4831 1311 4815 1966 4811 1658 4830
1901 4610 2005 4810 2112 4829
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
«...<:+..x.+.x.,....xx..+....w+��..x..x.....+.+.
490 .07 1151 .04 2ll2 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Espan.
ll51 2112 266 266 266 .3 .5
Blocked Obstructions num= 1
Sta L S[a R Elev
x..:+.a�++�k..+,.Rixr:o+.«
490 3000 4827.2 �
CROSS SECTION OUTPIIT Profile #100 yeaY
�x:.Rw:::+ts*wxrxx+r.:a«»ra�rs�t�r.�+�+3rr�r+�+++rwRiFii�w*::t�+r,�+;t+�t*+xix+�+ww�xr++t+r+wr+
* E.G. Elev (ft) ' 4828.58 * Element * Left OB • Channel ' Right OB *
* Vel Head ([U * 0.00 ' Wt. n-Val. * * 0.040 * *
* W.S. E1ev IfU * 4829.58 • Reach Len. (ft) ' 266.00 * 266.00 • 266.00 `
* Crit W.S. Iftl ' * Flow Area (sq ft) ' • 1274.53 * *
* E.G. S1ope (ft/fU *0.000000 t Area (sq ft) ' * 1274.53 * i
� Q Tota1 (cfsl * 1.00 � Flow (cfs) ' ' 1.00 '
* Top Width (f[) * 934.44 � Top Width (EU * R 934.44 • '
* Vel Total Ift/s) * 0.00 ' Avg. Vel. (ft/s) * * 0.00 * '
* Max Ch1 Dpch (ft) * 1.38 • Hydr. Depth (ft) ' • 1.36 * *
� Conv. Tota1 Ic£sl * 58222.9 ` Conv. (c£s) ' ' 58222.9
* Length Wtd. (ft) * 266.00 t Wetted Per. (fU * * 934.63 * - `
* Min Ch E1 (ft) * 4827.20 ' Shear (lb/sq ft) * 0��4
�i � Alpha • 1.00 ' Stream Power (lb/ft s) * * 0.00 * '
t * Frctn Loss (ft) * 0.00 * Cum Volume (acre-ft) " 4.12 * 209.26 * 1.59 '
Page 4
STVRAIN.rep
* C 6 E Loss (ft) ' 0.00 * Cum SA (acre.$) ' 4.28 * 148.42 • '
..x,:,:...,��r.+a=:..«+aa+F++ia+x.�.x+xw..»�t+k+�++:i�r+r+«xx«t+�t*�.:«rxr:+i:+::�.+wxiax�ixr{i
CROSS SECTION OUTPUT Profile q500 year
x:..,.:.:....x+...«r...x:......+,...+...+:+....xx+.+...+.xx..«xx:x...::+......+.:.«...:....+..:
* E.G. Elev (ft) * 4831.08 • Element * Left OH * Channel � Right OB *
• Vel Head (ft) ' 0.00 ' Wt. n-Val. • 0.070 * 0.040 * "
* w.S. Elev (ft) * 4831.08 ' Reach Len. (ft) • 266.00 * 266.00 * 266.00 '
* Crit w.5. (ft) � * Flow Area (sq ft) * 0.25 - • 3647.72 ' '
" E.G. Slope (ft/fU *0.000000 � Area (sq ft) ` 0.25 * 3647.72 " '
* Q Tota1 (cfs) ' 1.00 ' Flow (cfs) * 0.00 * 1.00 " �
* Top Wid[h (Et) * 96"1.08 ' Top Width (ft) ` 6.06 * 961.00 * *
* Vel Total (ft/sl * 0.00 * Avg. Vel. (ft/s) * 0.00 • 0.00 + *
+� Max Chl �pth (fU + 3.Be * Hydr. Depth (fU ` 0.04 * 3.Bo * *
� Conv. Tota1 (cfs) •329174.4 � Conv. (cfs) * 0.6 •3291�3.8 * '
� Leng[h Ntd. (fU * 266.00 ' Wetted Pet. (ft) ' 6.08 * 963.43 * '
• Min Ch E1 (ft) * 482"i.20 + Shear (lb/sq fU * 0.00 * 0.00 * *
* Alpha * 1.00 ' Stream Power (lb/ft s) * 0.00 * 0.00 * *
" FrcCn Loss (fU * 0.02 * Cum Volume (acre-£t) ' 18.55 ' 760.49 • 3.39 '
' C fi E Loss (ft) • 0.01 * Cum SA (aCie5) " 7.30 ' 158.94 ' '
.....:,.::.::x:::.:x::+.+++:+tx+:.a.�ixw�.x�xz+�+++y++ixx,+:::..:::�:s,F+�xixrxxwww+x.+:..x.::.:
4iarning: The cross-section end points had to be extended vertically for [he computed water surface.
CROSS SECTION OUTPUT Profile #10 yeai
itxi#ki#4*l4hiMR#li4kSfi'RSf*hYi*M1lfAF'.lFkliffiFiiF'.lk�.l�.ti4�.Fi4i11�#441Rii'Rt1T+ktii#t#hi4k#Yf1#+'.lRR•
� E.G. Elev (ftl * 482�."18 ' Element " Lef[ OB * Channel ' Right OH `
* Vel Head (ft) * 0.00 * Wt. n-Val. * * 0.040 " *
* W.S. Elev (£C) ' 4827.'J9 * Reach Len. (ft) • 266.00 * 266.00 * 266.00 •
* Cri[ W.S. (ft) � * Flow Area (sq ft) * • 535.77 * "
* E.G. Slope (ft/fU *0.000000 * Area (sq ft) ` ' 535.77 * *
` Q Total (Cfs) ' 1.00 * Flow (Cfs) ` ' 1.00 * *
• Top Width (ft) * 921.99 * Top Width (ft) * * 921.99 • *
* Vel Total (ft/s) � 0.00 ' Avg. Vel. (ft/s) ' ' 0.00 ' *
* Max Chl Opth (ft) + 0.58 ' Hydr. Oepth (ft) � " 0.58 ' `
* Conv- Total (cfs) ' 13858.5 * Conv. (cfs) * * 13858.5 • «
* Length Wtd. (EU ' 266.00 * Wetted Per. (ft) * ^ g22.pg " `
* Min Ch E1 (ft) • 482'1.20 * Shear (lb/sq ft) * ' 0.00 ' *
� * Alpha ' 1.00 ' Stream Power (lb/fC s) • * 0.00 ' `
� FrCtn Goss (ft) ` 0.00 + Cum Volume (aCZe-ft) ' 0.64 * 32.62 ` 0.59 '
* C s E Loss (ft) * 0.00 " Cum SA (acres) * 3.81 * 145.20 � *
+«+.....:,:..:+..+.:..+:...+..,.....+xx.:.:t+..w.x+:...........+.x+..w..x.xx:�:...:.,.:+:.:::+.::
CROSS SECTION OUTPUT PYoEile p50 year
:.:�..i.::..+.+.w+rwx.r+�xw.:rw:rxx+x+++rt�.�....«:x.r�.�r.r.«.*+wx�x.�:�xta+F+at++t+�it+.:t.�i
* E.G. Elev (ft) * 4827.80 * Element • Left OB * Channel * Right OB *
+ vel Head (EU * 0.00 * Wt. n-Val. * * 0.040 i •
' W.5. Elev (ft) ' 4827.80 � Reach Len. (ft) ` 266.00 * 266.00 * 266.00 �
* Crit w.5- fft) * * elow Area (sq ft) * * 551.97 • •
* E.G. Slope (ft/ft) *0.000000 ` Area (sq ft) ' * 551.97 + *
• Q Total (cfs) • 1.00 � Flow (cfs) * * 1.00 � •
* Top Widih (ft) * 922.27 * Top Width (EU * • 922.2"] ' `
• Vel To[al (ft/s) • 0.00 " Avg. Vel. (ft/s) ' * 0.00 ' `
* Max Chl Dpth (ftl ' 0.60 ' Hydr. Depth (fU • * 0.60 * *
' COnv. TOtdl (CfS) * 14561.4 * Conv. (CfS) ' ' 14561.4 * *
* Length Wtd. (ft) * 266.00 * Wetted Per. (ft) * * 922.35 i *
* Min Ch E1 (fU * 482'].20 • Shear (lb/sq fU * * 0.00 * R
' Alpha * 1.00 ' Stream Power (lb/ft s) ' * 0.00 * +
R Frctn Loss (ft) ' 0.00 + Cum Volume (acre-ft) * 0.92 * 72.53 ' 1.25 *
* C � E Loss (fU * 0.00 � Cum SA (acres) • 3.86 * 145.98 * *
i'F##ii4k4i#ik1F1*#1Y4fii*ik#F1-.lf1}:!f#*tF+fiY111*l41f14RlA4}kfiFti##1f#R#4T1Y�1l1f1f11i4ifii14f#
CAOSS SECTION
RIVER: St. Vrain Rivei
REACH: EXISTING LAKES RS: 70988
INPUT
Description:
Station ElevatiOn Data num= 13
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
ffi�afR�Rtki#i1A4#Ah1f11fAf#f'.l+�.l11A1}f�w#x�4f11l1�Ii1hl1�1�tiA{fti/itydkh*�.tMtikY�.F
� * 490 4838 655 4834 730 4834 905 4837.5 975 4830
Page 5
STVRAIN.rep
f 1000 4828 1151 4810 1311 4810 1468 4813 1658 4815
. 1901 4812 2005 4814 2112 4829.4
Manning's n Values num= 3
SCd n Val Std R Val Sta n Vdl
♦kirx�x�i����arxkx�����iii�xx�xxra��w��rx���x�:♦
490 .0� 1000 .04 2112 .0�
Hank Sta: Left Right Le�gths: LeEt Channel Right Coeff Contr. Expan.
1000 2112 315 315 315 .3 .5
Blocked Obstructions num= 1
S[a L Sta R Elev
......+:..x...:.:....xxx
490 3000 482�.2
CROSS SECTION OUTPOT Profile q100 year
A4ixY+Yl4iii#!llx1�#*i*WtY1iYi4i1tkt4�iit144tif#ifi�i!##F#fft*Fi�4kflffMMY#tY4RktltkAif11h1W#i1
� E.G. Elev (ft) * 4828.58 ` Elemen[ * Left OB t Channel * Right OB *
` Vel Read (fU ' 0.00 * wt. n-Val. * 0.070 • 0.040 + •
# W.S. Elev (fU * 4828.58 * Reach Len. (fU * 315.00 ' 315.00 * 315.00 *
* Cri[ W.S. (ft) * 4827.37 * Flow Area (sq ft) ' 2.07 * 1512.95 t *
* E.G. Slope (ft/fU "0.000034 * Area (sq £t) * 2.07 • 1512.95 ' '
' Q Total (cfs) * 403.50 * Flow (cfs) * O.11 * 403.38 ` *
• Top width (f[) + 1113.48 ' Top width (ft) ' �.20 * lla6.28 * *
* Vel Total (ft/s) * 0.2� * Avg. Vel. (ft/s) * O.DS t 0.27 • *
* Max Chl Dpth (ft) k 1.36 * Hydr. Depth (fU " 0.29 * 1.37 * •
' Conv. Total (cfs) * 69260.0 * Conv. (cfs) ` 19.2 * 69240.8 * *
' Length W[d. (ft) " 315.00 " WeCted Per. (ft) " 9.23 + 1106.42 * `
* Min Ch E1 (ft) * 482�.20 * Shear (lb/sq ft) * 0.00 ' 0.00 * *
* Alpha * 1.00 * Stream Power (lb/ft s) * 0.00 " 0.00 • *
* Frctn Loss (fU * ' Cum Volume (acre-ft) • 4 11 * 200 JS * 1.59 *
• C & E Lo55 (ft) � * Cum SA (acTe5) ' 4.25 * 142.18 * *
+3:::..a..x.RRx.�...rF+:�.+.a.r�a:t3FF�xx�++x+���xrrw.:x.+Kwx+xxfwrx+xxF+�wr�ii+aa+Wywt�+.��k+:
CROSS SECTION OUTPUT Profile q500 year
+�=x.Rr�3x.+�a�+Raw�:r+*r��++++rari++irKrxwwxrwa*wi.+x«.wr�r�w.�xx+wwrxx�.+xx.rrai++�xwt+ai�++•
* E.G. Elev (ft) • 4831.04 * Elemen[ * Left OH • Channel * Right OH �
� * Vel Head (ft) * 0.04 • Wt. n-val. * 0.070 • 0.040 * • �
" W.S. Elev (ft) ' 4831.00 ' Reach Len. (ft) * 315.00 • 315.00 * 315.00 *
. * Crit W.S. (ft1 * 4828.26 * Flow Area (sq ft) * �3.61 * 4210.23 * t
� * E.G. Slope (ft/Et) '0.000320 * Area (sq fU * 73.61 * 4210.23 * "
^ Q Total (c£s) * 6822133 * Flow (cfs) ' 28.41 t 6793.93 ' *
' Top Width (fU ' 1183.85 ' Top width (ft) * 71.85 ' 1112.00 * *
x Vel To[al (fC/s) * 7.59 � Avg. Vel. (ft/s) * 0.39 � 1.61 � �
* Max Chl �p[h (ft) * 3.80 * Hydr. Depth (ft) ' 1.02 r 3.79 � *
* Conv. Total (cfs) *381110.0 • Conv. (cfs) r 1586.8 *379523.2 r r
• Length W[d. (ft) * 315.00 • Wetted Per. (ft) ' �1.94 • 7113.81 ` '
* Min Ch E1 (fU � 482�.20 * Shear (lb/sq ft) . 0.02 * 0.06 = '
* Alpha � 1.02 E Stream Power (lb/ft s) * 0.01 * 0.12 * '
* Frctn Loss (£t) " ` Cum Volume (acre-fU ' 18.33 • �36.50 * 3.39 '
* C & E Loss (ft) ' • Cum SA (acres) * 7.07 * 152.61 * •
:w+*..kti�.:::..:.::.:.::..::.:.Fat+�+w..+:::.:::::::.:.������i.��xi+�xw:Rw.xx�rxxx�wxx+:��w+:.
CROSS SECTION OUTPUT Pmfile #10 year
:R�xaxxrrrxR�w.�w.+«�rwxrxRxwxxxx�w+:rrF..i�.»»x:.xxwxxw+��+s.�ai�x�x�+xW+r.+i�r+��*+�ti+irr•
* E.G. Elev (ft) * 4827.78 * Element • Lef[ OB * Channel * Right OH *
' Vel Head (ft) * 0.00 * Wt. n-Val. • ' 0.040 * �
� W.S. Elev (ft) * 4827.78 ' Reach Len. (ftl * 315.00 * 315.00 * 315.00 *
' Ciit W.S. (ft) > 4827.22 � Flow Area (sq ft) * � 639.16 ' * �
* E.G. Slope (ft/ft) •0.000000 • Area (sq fU * * 639.16 " *
* Q Total (cfs) * 1.00 " Flow (cfs) ` " 1.00 " *
* Top Width Ift) * 1098.96 * Top Width (fU R * 1098.96 * •
* Vel Total (ft/s) ' 0.00 + Avg. Vel. (ft/s) • * �.00 * *
* Max Chl Dpth (ft) • O.SB • Hydr. Depth (EU * • 0.58 * '
* Conv. Total (cfs) * 16542.9 ' Conv. (cfs) * ' 16542.9 • '
* Length Wtd. lfU * 315.00 * Wetted Per. (ft) * * 1099.04 * *
* Min Ch E1 (ft) * 4827.20 * Shear (lb/sq fU * • 0.00 * '
* Alpha " 1.00 � Stream Power (lb/ft s) ' ' �.00 * *
' Fictn Loss (ft) * ' Cum Volume (acre-ft) * �.64 * 29.03 * 0.58 *
x C 5 E Loss (ft) ' ' Cum SA (aczesl ' 3.81 * 139.03 * *
x+iti+a�a+ai�si+rrrxR�rx�x:�+�iiwawr�f�is���+ra�x����w+ttrr:ir��r��+���W�+Wrw��+erir��:ir���r�•
� CROSS SECTION OUTPUT Profile k50 year
) .x.:.�x.r..:.i.+.....�:�::.:i.i..R...::a�+.K�+..+k.«t+F�i�++�*k:��k,�+�+Fi+�F�+w��s�+aa++ri++:w
Page 6
STVRAIN.rep
* E.G. Elev (ft) * 4827.80 * Element * Left OB * Channel * Right 06 *
* Vel Head (fU * 0.00 * wt. n-Val. * * 0.040 * *
* W.S. E1ev (ft) � • 482"].80 * Reach Len. (ft) * 315.00 * 315.00 " 315.00 `
* Crit W.S. (fU ' 482"].22 * Flow Area (sq ft) ' * 658.48 * '
' E.G. Slope (ft/ft) '0.000000 * Area (sq f[) ' * 658.48 * '
* Q Tota1 (cfs) " 1.0� ' Flow (cfs) * * 1.00 ^ "
* Top Width (fU " 1099.23 � Top Width If[1 " ' 1099.23 * '
* Vel Total (ft/s) ' 0.00 * Avg. Vel. (£t/s) ' * 0.00 ^ "
• Max Chl �pth (ft) * 0.60 • Hydr. Depth (ft) * * 0.60 � '
* Conv. Total (cfs) ' 17381.8 * Conv. (cfs) ` a 1']381.8 " '
• Length Wtd. (ft) * 315.00 • wetted Per. (ft) * * 1099.31 ' `
* Min Ch E1 (fU " 482"].20 * Shear (lb/sq fU ' • 0.00 • '
* Alpha ' 1.00 + Stream Power (lb/ft s) " x o.00 � *
* Frctn Loss (fU * � Cum Volume (acre-fU * 0.92 * 68.84 • 1.25 *
• C & E Loss (fU ' ' Cum SA (acres) * 3.86 * 139.81 * •
t..w.+r+.:.xx::::....:«a...�.++.:::.«�.x+...:t.�.xxw.++:F.xs.�.x::.�+w.R..:::,ai�x+Ex:.::+.�:::::
INLINE STRUCTURE
RIVER: St. vrain River
REACH: EXISTING LAKES RS: "10673
INPUT
Description:
Distance from Upstream XS = 56
Deck/Roadway Width = 140
Weir Coefficient = 2.63
Weir Embankment Coordinates num = 14
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
kt+#+%1F114+tfhlFktttxtllRY+*Mt4tkFk+**#₹s'.lkY1MA'.lfit+#i%fiflttt+l*ihFtit+fki4-.l+A
453 4844 647 4839 858 4634 900 4833 1000 4832.5
1311 4830 1468 4828 1589 9827.4 1658 4827.2 1676 4828
1784 4828 1901 4829.5 2060 4629 2115 4829.1
Upstream Embankment side slope = 5.2 hori2. to 1.0 vertical
Dowastseam Embankment side slope = 5."] horiz. to 1.0 vertical
Maximum allowatle submergence for weir flow = .95
�� Elevation at which weir flow begins =
Weir crest shape = Broad Cres[ed
INLINE STRUCTURE OUTPUT Profile #100 yeaz Inl Strvct:
�{..�+�.r�xs++�:.i:�t«+w�.xrw:.::.Rx�x.,:e.x.r,r.t.x�x.�+,.t+:ii.«.w:st*�>+
' E.G. Elev (fU * 4828.58 * Q Gates (cfs) ' `
" W.S. Elev (ft) ' 4828.56 * Q Gate Group (Cfs) * 4827.22 •
* Q Total (cfs) * 403.50 * Gate Open Ht (ft) * 1.00 "
� Q Weir (cfs) � 403.50 * Gate #Open ' `
• Weir Flow Area (sq f[) � 300.24 * Gate Azea (sq £t) * •
* Weir Sta L£t (ft) ` 1422.69 * Gate Submerg • `
* Weir Sta Rgt (ft) ' 1829.02 * Gate Invert (f[) * '
* Weii Max Depth (ft) • 1.38 ' ' �
' Weir Avg �epth (ft) * 0.74 * ' '''
* Weir Submerg * 0.97 • ` `
* Min E1 Weiz Flow (ft) * 482�.21 • * '
+ WY Top Wdth (ft) ' 406.32 � t ` �
:x+�x+t�i�a�xx..�xx..+::t::t++stwx.r:�;+iirrxwa+t+r»r�+as�+*r��x:x�+++wr.+
INLINE STRUCTORE OOTPOT Profile #500 year Inl Struct:
x:.:..+..<+...x.»......:..:....+a.xx..+.:+.++..++...xx...+..+...xxx..x..+
* E.G. Elev (fU * 4831.04 • Q Gates (cfs) * '
� W.S. Elev (ft) * 4831.00 * Q Gate Group (cfsl * 0.00 *
* Q Total (cfsl ' 6822.33 * Gate Open Ht (fU * 0.00 '
* Q Weir (cfs) * 6822.33 * Gate #Open * 0 '
* Weir Flow Area (sq ft1 * 2099.50 " Gate Area (sq ft) * 4833.11 *
* Weir Sta Lft (ft) * 1187.13 * Gate Submerg * *
+ Weir Sta Rgt (fU * 2112.00 ; Gate Invert (Et) • •
* Weir Max Depth (fU ` 3.84 * * `
t Weir Avg Dep[h (ft) ' 2.26 * ` '
+ Weir Submerg ' 0.94 • ^ '
• Min E1 Weir Flow (ft) � 4827.21 " * `
' wr Top Wd[h (fU ` 930.87 • ' +
•.+...x�.�.+x..+.a.+..xxx:.x:.:x..x:x...+.a..a....+..+.,:....::+:..+e:...
�
Page 7
STVRAIN.rep
, INLINE STRUCTURE OUTPVT Profile it10 year Inl Struct:
. ,:+..::.:+...�.....�xx....+..,...,...+.....:........+..r..:.....:.::.:.+.
` E.G. Elev (fU ' 482"].78 * Q Gates (cfs) ' '
• W.S. Elev (ftl * 482"1."18 * Q Gate Group (cfs) * 0.00 *
* Q Total (cfs) � 1.00 * Gate Open Ht (fU ' 0.00 '
• Q Weir (cfs) � 1.00 * Gate #open + 0 *
* Weir Flow Area (Sq ft) ' 52.13 • Gate ALea (Sq ft) * 4841.22 '
� Weir Sta Lft (fU ' 1511.52 * Gate Submerg � "
• weir Sta Rgt (ft) ' 1671.14 * Gate Invert (ft) * *
* Weir Max Depth (ft) ' 0.58 � * �
" weir Avg Depth (ft) ' 0.33 � � *
• Weir Submerg � 0.98 �' * •
* Min E1 Weir Flow (ft) ' 482'1.21 * * '
+ Wr Top wdth (ft) � 159.63 t • *
....:.�„:+......r+++...........................:.....:.+..:..........«+.
INLINE STRUCTURE OUTPUT Profile k50 year Inl Siruct:
.+«xr.rx..�+r:xwiF�+i...i�+it:.::�ai>:FiiiF..�t�+++Fii:tiiat{+a++r*a++awiw
* E.G. Elev (ft1 ' 482�.80 ` Q Gates (cfs) * *
• W.S. Elev (fU • 482�.80 " Q Gate Gloup (cfs) * 0.00 '
* Q Total (cfs) * 1.00 * Ga[e Open HC (ft) * 0.00 *
* Q weir (cfs) * 1.00 * Gate qopen * 0 •
* Weir Flow Area (sq ft) * 54.97 * Gate Area (sq ft) • 4828.55 "
' Weir Sta Lft (ft) ' 1507.9'J � Gate Submerg * *
* Weir Sta Rgt (ft) ' 1671.54 ' Gate Invert (ft) ' •
* Weir MaX Depth (ft) * 0.60 " * "
* Weir Avg Depth (ftl * 0.34 ' ' •
* weir Submerg � o.9e * • *
• Min E1 Weil Flow (fU * 4827.21 ' * '
* Wr Top Wdth (ft1 a 163.57 • ` *
x.:..+:........:..x«.:«:.:.:>...:.:.......+.+...+....+»_•:.:::::...:.....
CROSS SECTION
RIVER� St. Vrain Rivez
� REACH: EXISTING LAKES RS: 70493
INPUT
Description:
Station Elevation Oata num= 13
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.:.:.+,.....:..+:.a..++a..:..+..x+..:::.:+.:....+a.....x..xx.+a....+.......x.x..
490 4838 655 4834 "]30 4834 905 4831.5 975 4830
1000 4827 1151 4810 1311 4811 1468 4813.5 1658 4875
1901 4811 2005 48ll 2112 4829.5
Manning'5 n ValUes num= 3
Sta n Val Sta n Val Sta n Val
...x.:.x+::<....::.x.x.:.:..,::.+..:.+.+:....+.+
490 .07 1311 .04 2112 .07
Bank S[a: Left Right Lengths: Le£t Channel Right Coeff Contr. Expan.
1311 2112 542 542 542 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
490 1680 4827 F
Blocked Obstructions num= 1
Sta L Sta A Elev
+.a�+*�iri.�aiw.Rxrrxrx.
490 3000 4827.6
CROSS SECTION OUTPUT Profile k100 year
.+...xx.�+�..:+...+++...+.«.....++..+.w.xx.xxxx+......:....+..*+x..�x++.+.«+.+w..++x«.+.s......
' E.G. Elev (fU ' 4828.56 * Element • Left OB * Channel * Right OH �
* Vel Head (ft) * 0.00 • wt. n-Val. * 0.070 * 0.o4o * '
� W.5. Elev (£U ' 4828.56 � Reach Len. (ft) ' 542.00 * 542.00 * 542.00 *
* Crit W.S. (ft) * ' Flow Area (sq ft) * 305.45 * 753.00 * '
* E.G. Slope Ift/ft) '0.000197 • Area (sq tt) * 305.45 + 753.00 * '
* Q Total (cfs) ` 403.50 * Flow (Cfs) ' 75.63 � 32'7.87 ' `
� Top width (ft) • 1116.86 ' Top Width (ft) ' 323.96 ` 792.91 ' "
t Vel To[al (ft/51 * 0.38 * Avg. Vel. (ft/s) ' 0.25 � 0.44 * '
ti ` Max Chl Opth (ft) ' 0.95 " Hydr. Depth (fU * 0.94 " 0.95 ' '
� ; Conv. Total (cfs) ` 33258.4 • Conv. (cfs) ' 6233.8 * 27024.6 " `
Page 8
STVRAIN.rep
� * Leng[h wtd. fEt) * 542.00 • Wetted Per. (ft) * 32a.01 • 792.96 * *
. * Mia Ch E1 (ft) * 4827.60 * SheaT (lb/Sq £t) * 0.01 i 0.01 • *
� ' Alpha * 1.14 ' Stream Power (lb/ft s) " 0.00 * 0.00 ' '
* Frctn Loss (ft) * 0.09 � Cum Volume (acre-ft) * 3.00 � 192.56 • 1.59 *
* C & E Loss (ft) � 0.00 * Cum SA (acres) * 3.06 * 135.32 ' '
.....x+x....+:::a,:.:.:...x:...+......++.....:...+x+:.++:...:......:a+.....«...+.+«...�:....+..
CROSS SECTION OUTPUT Profile k500 year
t....+.+x�:�x:..:,:.:.::x.=,::�:tr:��t+�.+x.xr+,r++r:wx.w.:i..::.:xt:+++::*t��t.�w.+��.r::.�:.•
� E.G. Elev (ft) * 4830.95 * Element * Left OB * Channel * Right OB *
* Vel Head (Et) * 0.06 • Wt. n-Val. " 0.070 • 0.040 ' '
* W.S. Elev (fU " 4830.89 ' ReaCh Len. (fU t 542.00 R 542.00 * 542.00 •
* Crit W.5. (ft) * • Flow Area fsq ft) • 1100.50 * 2621.05 * `
* E.G. Slope (f[/ft) *0.0006�8 * Area (sq ft) * 1100.50 * 2621.05 * •
+ Q To[al (cfs) � 6822.33 * Flow (cfs) ` 1240.85 * 5581.48 ' `
• Top wid[h (fU ' 1178.61 * Top Width (ft) ' 3�7.61 * Bol.00 ' *
* Vel Total (ft/s) * 1.83 � Avg. Vel. (ft/s) • 1.13 ` 2.13 � *
* Max Chl �pth (ft) • 3.29 • Hydr. Depth (ftl • 2.91 * 3.27 • •
* Conv. Total (cfsl +261986.5 * Conv. (cfsJ ' 47650.4 *214336.1 ' «
* Length Wtd. (fU * 542.00 * Wetted Per. (ft) ' 3�7.76 ' 802.50 ' *
* Min Ch E1 (ft) * 4827.60 * Shear (lb/sq ft) * 0.12 * 0.14 * *
* Alpha + 7.17 ' Stream Power (lb/ft s) ' 0.14 * 0.29 * '
• Frctn Loss (ft) • 0.45 • Cum Volume (acre-fU * 14.08 * 711.80 • 3.39 •
* C & E Loss (ft) ' 0.01 ` Cum SA (acresl • 5.44 * 145.70 * *
kti+.r+�trrK+aFitt�.�+�.+w+�.ii+.wxr:wx3.+:aii�ixax�..+xtt+t:F++it.Kir�.Rx:..x�:++tw��w+��xRK.r
warning: The cross-section end points had to be extended vertically for the computed water surface.
CROSS SECTION OUTPUT Profile #10 yeai
iixxr�iy«+��i+�.t�t:«rtai��ixxx.�x+�rr:�«:+�+�y*t.xx:+:ztii�:{+ti�.w�.x�xx+�+��++ri�++xwkr�.y.•
* E.G. Elev (fU R 482�.�8 * Element * Left OH * Channel * Right OB *
� vel Read (ft) t 0.00 • Wt. n-Val. * 0.070 • 0.040 * *
* W.S. EleV (ft� " 4827.78 ' ReaCh Len. (£t) * 542.00 * 542.00 * 542.00 t
* Crit W.S. (ft) ' ' Flow Area (sq ft) • 55.99 * 138.84 * '
* E.G. S1ope Ift/ftl '0.000000 * Area (sq ft) ' 55.99 ' 138.84 * *
� Q Total (cfsl * 1.00 ' Flow (cfs) * 0.19 * �.81 * *
* Top Width (fU * 1103 J2 ' Top width (ft) • 317.47 * 786.25 * *
* Vel To[al (ft/s) ' 0.01 ' Avg. Vel. (ft/s) ` 0.00 * 0.01 * '
� * max Ch1 �p[h Ift) � o.le + Hydr. �epth (ft) ' o.le � 0.18 * `
* Conv. Total fcfs) ' 1997.1 * Conv. (cfs) ' 373.7 * 1623.4 * *
• Length Wtd. (ft) ' 542.00 ' We[ted Per. (ft) * 317.48 R �86.26 * '
* Min Ch E1 (ft) ' 4829.60 R Shear (lb/sq ft) * 0.00 * O.OD * '
* Alpha � 1.14 • Stream Power (lb/ft s) * 0.00 ' 0.00 * *
* FYCtn Loss (ft) ` 0.00 ' Cum Volume (acre-fU ' 0.44 ' 26.21 * 0.58 '
* C & E Loss (Et) * 0.00 * Cum SA (acres) * 2.66 * 132.21 ' '
.::::..:.:...:...:..+.:.....«x....r...+.:.....+.w+x+::........+.+...x....x�:��.+++wx+.....w.+x.
CROSS SECTZON OUTPiTT Profile #50 year
Rx+��+x�RxK��rx�x*w���Ra�xxKx++xxx+x��+����{a�ir+x«+t+�F+�rr�K*xxwxr+rx:wxM++++�+�*x+�xs+�+xw•
* E.G. Elev (ft) * 4827.79 � Element * Left OB • Channel � Ri9ht OH •
k Vel Head (ft) ' 0.00 ' Wt. n-Val. ' 0.070 • 0.040 * *
* W.S. Elev (ft) * 482�.79 " ReaCh Len. (ft) * 542.00 • 542.00 * 542.00 •
i Crit W.S (fU * • Flow Area (sq ft) • 6L 57 • 152.66 * *
* E.G. 51ope (ft/ft) �0.0�0000 * Area (sq ft) * 61.57 * 152.66 " `
* Q Tota1 (cfsl * 1.00 * Flow (cfs) * 0.19 * 0.81 ' *
• Top Width (ft) * 1104.02 * Top Width (ft) • 317.62 * 786.40 " *
* Vel Total (ft/s) * 0.00 * Avg. vel. (ft/s) * 0.00 * 0.01 � *
* Max Chl Dpth (ftI + 0.19 • Hydr. Depth (ft) • 0.19 * 0.19 t *
* Conv. Total (c£s) ' 2339.1 * Conv. (c£s) * 437.7 * 1901.4 * •
* Length Wtd. (ft) * 542.00 * Wetted Per. (fU ` 317.63 * 786.41 * *
* Min Ch E1 (f[) * 482�.60 * Sheai (lb/sq ft) • 0.00 * 0.00 * *
* Alpha * 1.14 " Stream Power (lb/ft sl * 0.00 * 0.00 * *
* F[Ctn Lo9s (ft) * 0.00 ' Cum Volume (aCre-£t) * 0.69 * 65.90 * 1.25 *
* C & E Loss (ft) * 0.00 ' Cum SA (acres) * 2.72 R 132.99 * '
�::�xwxw.xrx::..xxiwxa:wx:x:�:t:+a:���t..t+..s.»w++�+��«+.+�i+yw��+iw�w��w+�w��+��+x+*�+x.��K.r
CRO55 SECTION
RIVER: St. Vrain River
REACH: E%ISTING LA%ES RS: 69651
INPUT
� �ea¢ip[io�:
Page 9
STVRAIN.rep
Sta[ion Elevation ❑a[a num= 12 �
' Sta Elev Sta Elev Sta E1ev Sta Elev Sta Elev
:.:::�:t:.:.::....+.+...xw..-r.+...:::�:i�.�+ta+::.r«.x*+.*...:.:.:.t.tx���..�tw+
490 9833 655 4831 �30 4830 905 4810 9"/5 4809
1000 4809 1151 4809.2 1311 4809 1468 4809 1658 4808
1901 4808.5 2112 4827
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
...+....:+..:...+....+.+«,«..«..:.....+.........
490 .0'] 730 .04 2112 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Ezpan.
730 2112 495 362 362 .3 .S
Ineffective Flow num= 1
Sta L S[a R Elev Permanent
490 1151 4827 F
Blocked Obstructions num= 1
Sta L Sta R Elev
.'+x�x�+.«rii..�..wx,i�..
990 3000 482"1.6 �
CAOSS SECTION OUTPUT Profile #100 year
�:,.:..+..+:..:..:......:..+.«..+.:.w.x..+++.x.x.x.....:...a:...oxx+:::..,.....:x.:.xxwx.:++.«+
" E.G. Elev (ft) ' 4828.4� • Element ` Left OB * Channel * Right OB `
* Vel Head (ft) " 0.00 + wt. n-Val. * * 0.040 " '
* W.S. Elev (ft) * 4828.49 * Reach Len. (ft) * 495.00 * 362.00 * 362.00 *
* Crit W.S. (ft) * * Flow Area (sq fU * ' 1186.97 � *
* E.G. Slope (ft/ft) *0.000168 • Area (sq ftI • ` 11B6.87 * '
* Q Total (cfs) " 518.70 ' FloW (Cfsl ' ' 519.70 * *
* Top Width (ft) * 1368.61 ' Top Width (ft) * '� 1366.61 * '
* Vel Total (ft/s) * 0.44 • Avg. Vel. (ft/s) * • 0.44 R '
* Max Ch1 Opth (ftl * 0.87 ' Hydr. Depth (EU * ' ��8� ' '
* Conv. Total (cfs) ' 400'/7.0 " Conv. (cfsl ' ' 40077.0 ' '
+ Length Wtd. (EU * 362.48 " Wetted Per. (ft) ` * 1369.53 ' *
• Min Ch E1 (ft) * 482"/.60 ' Shear (lb/sq ft) ' * 0.01 * *
* Alpha * 1.00 ' Stream Power (lb/ft s) * ` 0.00 * *
. f * Frcin Loss (f[) � 0.08 " Cum Volume (acre-Et) • 1.10 * 180.49 * 1.59 *
* C & E Loss (EU ' 0.00 ' Cum SA (acres) • 1.04 ' 121.8� * '
#'R+fi+iliRFi�lft+4fttfffitlxlh##tt{tkii4#%fRTf�.lfiil4FxrtM}�fi�tti�.lxkiTl'.!'.lf+i4l�hiMFAFRfFt1t�:#1*i:iM1e#
� Warning: The cross-section end points had to be extended vertically for the computed water surface.
CROSS SECTION OUTPUT Profile it500 }'ear
:.::..+..+.«x+.+..w..+.x.:.:....+..+xa:.+++..xx:+::.........:..:....x.x:+:.++:.+xx.x:..:...:..+.
* E.G Elev (ft) ' 4830.49 * Element • Left OB * Channel * Right OH +
* Vel Head (ftI * 0.08 * Wt. n-Val. * 0.070 + 0.040 * '
�` w.S. Elev (fU * 4830.41 ' Reach Len. (Et) ' 495.00 R 362.00 * 362.00 *
' Crit W.S. (fU ' ' Plow Area (sq £t) * 6.31 ' 3858.30 * ' _
* E.G. Slope (ft/fU *0.000994 * Area (sq ft) * 6.31 * 3850.30 * `
* Q Total (cfs) ' 894b.13 * Flow (c£s) * 1.47 * 8944.66 * *
* Top Width (£t) * 1412.�6 ' Top Width (ft) • 30.'16 * 1382.00 • *
* Vel Total (ft/s) ' 2.31 • Avg. Vel. (ft/sl * 0.23 " 2.32 " *
* Max Chl Dpth (Et) " 2.01 � Hydr. Depth (ft) * 0.21 • 2.79 * *
' Conv. Total (cfs) '283821.3 ' Conv. (cfs) * 46.6 *283774.� x '
* Length Wtd. (ft) * 362.73 • Wetted Per. (ft) * 30.76 * 1384.95 * '
* Min Ch E1 (ft) * 482'1.60 * Shear (lb/sq ft) + 0.01 * O.P � *
* Alpha R 1.00 * Siream Power (lb/ft s) * 0.00 * 0.40 * *
* Frctn Loss (ft) * 0.50 * Cum Volume (acre-ft) * 7.19 * 671.49 * 3.39 *
* C & E Loss (fU * 0.01 * Cum SA (acres) � 2.90 ` 132.12 � *
:.:::+:..+::xxxxx.+x:.,:.:..+.w..:....++.++..w..+x=:...x.+.x.....x.:�...+..•x...+....:r.x.++:..:
warning: The cross-section end points had to be extended vertically for the computed water surface.
warning: The conveyance ratio (upse:eam conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional ¢oss sections.
CROSS SECTION Ot1TPUT Profile q10 year
ii#k#*1#4f4#k*ki#{iiiii}FR£44i4iR'FMi###�lff�.l1441�1f1ft#Yf1f�tTkl₹Y111FiY4fRRIf4#f+iTftY#₹iM#h#F44
* E.G. Elev IfU ' 4827.70 " Element ' Lef[ OB � Channel * Right OH R
* vel Head (ft) * 0.00 * Wt. n-Val. � * 0.040 � *
* W.S. Elev (fU • 4827.7B * Reach Len. (ft) * 495.00 • 362.00 * 362.00 •
* Crit W.S. IfU • ' Flow ATea (sq fU " ` Z40��4 * `
�: * E.G. Slope (ft/fU "0.000000 ' Axea (sq fU ' ` 240.70 • �`
- � Q Total (cfs) ' 1.00 * Flow (cfs) ' ' 1.00 +
Page lo
STVRAIN.rep
�� + Top Width (ft) * 1362.55 * Top Width (ft) * * 1362.55 • *
= Vel Total �ft/s) * 0.00 ' Avg. Vel. (ft/s) * • 0.00 * *
� * Max Chl Dpth �fU ' 0.18 * Hydz. Depth (ft) * • 0.18 �" *
* Conv. Total (cfs) * 2814.9 * Conv. (Cfs) " * 2814.9 * `
* Length Wtd. (fU + 362.40 * Wet[ed Per. If[) * * 1762.73 � *
" Min Ch E1 (fU * 4827.60 F Sheaz (lb/sq fU ' * 0.00 * *
* Alpha * 1.00 • Stream Power (lb/f[ s) * * 0.00 t •
` Fzctn Loss (ft) � 0.00 * Cum Volume (acre-£t) � 0.09 R 23.85 ` 0.50 *
* C & E Loss (fi) � 0.00 * Cum SA lacres) • 0.68 * 118.84 * +
�::t.::wwri�+.:.r+t+*.��:xx:,�.x.t.xw+�a+i++.+�ia�+Fs..:....r.��a+�i:+x+i+t�a:*..�+tr+rRi�«�w.x+
Warning: The cross-section end points had to be extended vertically for the compu[ed water surface.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyancel is less than
0.7 or greater [han 1.4. This may indicate [he need for additional cross sections.
CROSS SECTION OUTPUT Profile #50 year
1*ffY:'kiii₹f+iY:1*4xri�Fk#M*kh4fihlii+i4iiMl�llk'.!k'.!#t1;t�+;#4*hifti[t�tx4*fR£kvlit�lAltin'kfRtfifARFA•
* E.G. Elev (ft) * 4829.79 "' Element * Left OB * Channel ' Right OB •
r Vel Head (fU * 0.00 * Wt. n-Val. * * 0.040 * •
• W.S. Elev (fU = 482"/."19 " Reach Len. (ft) * 495.00 * 362.00 " 362.00 *
' Crit W.S. (ft) * * £low Area (sq ft) � * 264.66 ' *
r E.G. Slope (ft/fU •0.000000 * Area (sq ft) � + 264.66 * w
' Q Total (cfs) * 1.21 * Flow (cfs) * * 1.21 * •
* Top Width (fU = 1362.70 * Top Width (ft) * < 1362.70 • *
r Vel Total (ft/s) * 0.00 � Avg. Vel. (ft/s) � * 0.00 * *
* Max Chl Dp[h (fU • 0.19 * Hydr. ➢epth (ft) * * 0.19 * •
* Conv. Tota1 (cfs) * 3296.8 * Conv. (cfs) � ; 3296.8 • +
* Leng[h Wtd. (ft) * 362.40 * Wetted Per. (ft) ' * 1362.91 * +
* Min Ch E1 (ft) * 4827.60 * Shear (lb/sq ft) * � 0.00 • *
• Alpha • 1.00 * Stream Power (lb/ft s) * * 0.00 * *
' Frctn Loss (ft) + 0.00 * Cum Volume (acre-fU * 0.31 • 63.31 ' 1.25 '
' C 6 E Loss (ft) � 0.00 * Cum SA (acres) * 0.74 * 119.62 * *
....x...+k.....++.....:...:x.x.:....x.�....+...a+.+.+...::.:....x..:.x.•.x...:.r.....+....::.x.
Warning: The cross-section end points had to be extended veitically for the computed water suzface.
Warning: The co�veyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.'1 or greater than 1.4. This may indicate the need for additional cross sections.
- � CROSS SECTION
RIVER: S[. Viain River .
REACH: EXISTING LAKES RS: 69589
INPUT
Descziption:
Station Elevation Data num= 8
Sta Elev 5[a Elev Sta Elev Sta Elev Sta Elev
•���::..wawt«::.+x��..::.�+..:...w..�rxx.+x�..+�xe+���r..�t.:.:xw�wx�r,r.w�xaww.w
275 4839 355 4834 445 483� 553 4827 776 4813
1652 4811 1809 4816 2009 4828
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
..+.+...+.....:..+......:<.+.:.......<.+..++.+..
275 .07 553 .04 2009 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E�cpan.
553 2009 2"75 275 275 .3 .5
Blocked Obstructions num= 1
Sta L Sta R Elev
«�•i:x..+�.x......+.xxx.
275 2066 482�.�
CROSS SECTION OUTPUT PYofile #100 yeai
Af'A-.lF+�tA4�MiiMt4iiTtAfAY#ik*'.l41(hiflAf'.Yh1#111:fii41#ii41#;1�.lff1f11#41i*##itI*f*1l1f1iF4i##1kM1lRi
� E.G. Elev (fU + 4828.39 • Element + Lef[ OB * Channel * Right OB •
* Vel Head (ft) * 0.00 * Wt. n-Val. + 0.070 * 0.040 * a
* W.S. Elev (ft) • 4828.39 * Reach Len. (ft) * 275.00 * 275.00 " 2'75.00 *
' Crit W.S. (ft) � 9827.86 • Flow Area (sq ft) • 15.47 * 998.83 * i
* E.G. Slope (f[/fU "0.000318 • Area (sq ftl ' 15.47 * 998.83 * +
• Q Total (cfs) + 518.70 * Flow (cfs) * 3.77 • 514.92 * *
� ' Top Width (f[) * 148i 95 * Top Width (ft) * 29.95 t 1456.00 R •
i t Vel Total (£[/s) 3 0.51 * Avg. Vel. (ft/s) * 0.24 * 0.5� * «
Page ll
STVRAIN.rep
* Max Chl Dpth (fU • 0.69 * Hydr. Depth (fU • 0.52 * 0.69 � *
. * Conv. Total (cfs) t 29067.3 • Conv. (cfsl * 211.4 * 28855.9 " �
* Length Wtd. (EU ' 275.00 • Wetted Per. (ft) + 29.97 * 1456.40 * �
• Min Ch E1 (ft) • 482�.70 ' Shear (lb/sq ft) = 0.01 3 0.01 ' *
* Alpha * 1.01 * Stream Power (lb/ft s) * 0.00 * 0.01 * +
* Frctn Loss (ft) ' • Cum Volume (acre-ft) * 1.01 * 171.41 * 1.59 *
* C & E Loss (ft) ' * Cum SA (acres) * 0.87 * 110.13 • �
i#1k1+fkYit�Rfff��fa+�+tti�xRf�tttf��;ki#ftffYifl�n*R4Y#444txfYiiMiYJkiiifkix4f1ixflx;ifYlkiikt
CROSS SECTION OUTPUT Pmfile #500 yeaY
xwx.Fir.«.�:.:..«...:.t:.:::.wx�r+i.�rax+wwwK�i::.:ww.:�.*i:�.wrrxR�xw�t+r::t:w.»w��.::...i�*+s
* E.G. Elev (ft) * 9829.98 * Element � Left OB * Channel • Right OB *
• Vel Head (fU * 0.12 * Wt. n-Val. * 0.070 • 0.040 * *
• W.S. Elev (EC) * 4829.B6 * Reach Len. (ft) " 275.00 * 275.00 ' 275.00 *
* Crit W.S. (ft) t 4828.75 ^ Flow Area (sq ft) * 82.80 * 3138.04 t •
* E.G. Slope (ft/fU *0.0020�3 * Area (sq ft) * 82.80 * 3138.04 � •
* Q Total (cfs) * 8946.13 " Flow (cfs) * 97.32 + 8848.81 + •
` Top Widih (fU * 7517.69 * Top Width (ft) * 61.69 + 1456.00 * *
* Vel Total (ft/sl * 2.�8 k Avg. VeL (ft/s) * 1.18 * 2.82 • *
* Max Chl Dpth (fU * 2.16 * Hydr. Depth (fU * 1.34 * 2.16 • �
* Conv. To[al (cfs) �196473.8 * Conv. (cfs) • 2137.3 �194336.5 � * •
• Length Wid. (fU * 275.00 * We[ted Per. (ft) * 61.74 • 1457.87 + �
* Min Ch E1 (fU * 4827 JO * Shear (lb/sq ft) * 0.17 • 0.28 * �
• Alpha * 1.02 • Stream Power (lb/ft s) • 0.20 * 0.79 » +
� Frctn Loss (ft) * * Cum Volume �acre-fU * 6.69 < 642.41 * 3.39 •
* C s E Loss (ft) ' • Cum SA (aCYes) + 2.37 * 120.32 • *
::»x....++,:.«.:.::x.....:.x.x.......:.:x:::xxx+.....+++s..:�.:x.x»r.x..+..+::::x....+..:..w+..
CROSS SECTION OUTPUT Profile #10 yeaY
l41t1M#i#4FS111#iitRti*1Y4Ri}AxfilYAliYiYtYi#fft�iiF*+iMWYi#Y1!#�f1f#xlfxlx4Wr#1i;Afiiil#414R1S
R E.G. Elev (ft) * 4827.78 * Element • Left OB ^ Channel • Right OB *
^ Vel Head (fU " 0.00 * Wt. n-Val. * 0.070 • 0.040 * *
* W.S. Elev (ft) t 4827.78 * Reach Len. (fU * 275.00 * 275.00 * 275.00 *
* Crit W.S. (ft) * 482�.�2 * Flow Area (Sq ft) • 1.22 + 111.28 * *
^ E.G. Slope (ft/fU *0.000�02 * Area (sq ft) • 1.22 ' 111.28 • •
* Q Total (Cfs) * 1.00 * FloW (Cfs) * 0.01 * 0.99 ' *
* Top Width (ftl + 1469.06 " Top Width (ft) t 16.78 * 1452.28 • �
f * Vel Total (ft/s) + 0.01 " Avg. Vel. (ft/s) • 0.00 • 0.01 * *
* Max Chl Dpth (f[1 * 0.08 � Hydr. Depth (ft) * 0.07 • 0.08 * � *
_ • Conv. Total (cfs) • 750.3 x Conv. (cfs) R 4.5 a 745.8 * •
. ^ Length Wtd. (fU " 275.00 * wetted Per. (ft) * 16.�8 * 1452.28 * *
� Min Ch E1 Ift) * 4827.7o * Shear (lb/sq ft) * 0.00 * o.00 * *
• Alpha * 1.01 + Stream Power (lb/ft s) * 0.00 * 0.00 * *
* Frctn Loss (ft) t + Cum volume (acre-ft) � 0.08 • 22.39 r 0.58 *
* C & E Loss (f[) t • Cum SA (acres) � 0.59 * 107.15 * *
•x++«�i��.��wi+.t.,�rwt�++i:..++:+w�x«.�a��x�..x�t*a�+F�t++++«�x�x>xxr�xa�ra»tw+�:xrwt+++:::x
CAOSS SECTION OUTPUT Protile �50 year
ii�.��:ia:�x«r�a�:+:..Rxxw.�+�a+++ta+�++��iit.Fx�:xwx.r�x�a�r�++ai++����tw:x.ri�.ra�r�++::x++++
* E.G. EleV (ftl * 4827 J9 ' Element • Left OH • Channel * Right OH �
` Vel Head (fU • 0.00 * Wt. n-Val. * 0.070 ' 0.040 * *
' W.S. Elev (ft) � 4829.�9 x Reach Len. (Et) • 295.00 • 275.00 � 295.00 �
* Crit W.S. (ft) * 4827.72 * Flow Area (sq £t) * 1.52 * 136.81 * *
� E.G. Slope (ft/ft) +0.000001 * Area (sq ft) * 1.52 * 136.81 * t
* Q Total (cfs) 3 7.21 * Flow (c£s) * 0.01 ' 1.27 * *
• Top Width (fU • 1469.73 " Tap Width (ft) * 17.16 * 1452.57 * *
* Vel To[al (ft/s) + 0.01 a Avg. Vel. (ft/s) � o.00 t 0.01 r •
* Max Chl Dpth (fU ' 0.09 ' Hydr. Depth (fU * 0.09 * 0.09 * *
* Conv. Total (cfs) * 1058.5 * Conv. (cfs) * 6.4 * 1052.1 * * �
* Length Wtd. (fU * 275.00 * wetted Pez. (ft) * 17.16 * 1452.58 * t
* Min Ch E1 (ft) ' 4827.70 • Shear (lb/sq ft) * 0.00 ' 0.00 r •
� Alpha * 1.01 * Stream Power (lb/ft s) * 0.00 * 0.00 * *
* Frctn Loss (fU * • Cum Volume (aCre-Et) * 0.30 * 61.64 * 1.25 •
• C 6 E Loss (EU * * Cum SA (acres) * 0.64 * 107.92 * �
#1f#1rtk*f�t4lKYfi�ii+iik4tfAR1flix*4!#fx1!*IxT1RxfllRxfi4x11fi##I#4iiY##R****kxf4#IA11ii11##F₹#
INLINE STRUCTURE
RIVER: St. Vrain River
REACH: EXISTING LAKES RS: 69479
ZNPllT
' Description:
Page 12
STVRAIN.rep
' Distance from Ups[ream XS = 130
Deck/Roadway width = 55
Weir Coefficient = 2.63
Weir Embankment Coordinates num = 10
Sta E1ev S[a Elev Sta E1ev Sta Elev Sta Elev
.<...........«.«.+++.....,...:..+.......:....+.+......+......+>..+.+......k,:...
445 4830 ]�6 4828 776 482'/.� 943 4828 1183 482B.5
1284 4828.6 1336 4828.3 1652 4827.9 1B09 4828 2009 9B28.4
Upstream Embankment side slope = 6 horiz. to 1.0 vertical
Downstream Embankment side slope = 2.8 horiz. to 1.0 vertical
Maximum allowable submergence for weir flow - .95
Elevation at which weir flow begins =
Weir crest shape = Broad Cres[ed
INLINE STRUCTURE OUTPUT Profile q100 year Inl Struct:
<:xi«.�xwrx��t.+t+:.:.it.ti+�sa.++���++at+at+i�t:�t.att..r.at+x+a�.x++.r�
` E.G. Elev (EU * 4828.39 ' Q Gates (cfs) t +
' W.S. Elev (ft) ' 4828.39 " Q Gate Group (cfs) * 4827.72 * �
* Q Total (cfs) * 518."10 * Gate Open H[ (fU " 1.00 *
'� p Weir (cfs) * 518.70 * Gate #Open * *
+ weir Flow Area (sq ft) • 339.45 * Gate Area (sq EC) * •
* Weir Sta Lft (ft) = 711.37 * Gate Submerg + *
+ Weir Sta Rgt (ftl ' 2004.36 ' Gate Invert (tt) r *
R Weir Max Depth (fU " 0.69 * * *
* Weir Avg Depth (fU ' 0.31 * i •
* Weir Submerg * 0.00 ' * *
' Min E1 WeiY Flow (ft) • 4827.71 " * *
* Wr Top wdth (ft) * 1103.22 ` * *
•tis�:�i�+:rxrxrwx...�a�a�K���r+.�+.r...w.�..wR.:.x:.:..+x.:�xxwr+ax..�+r+•
INLINE STRUCTURE OUTPUT Pro£ile #500 yeal Inl StruCt:
..x+.+..+....:,...+..........++...:«.,+..:....+::...,....::..:.=..x.:+..+
* E.G. Elev (fU * 4829.98 ' Q Gates (cfs) ' f
* W.S. Elev (fU * 4829.86 * Q Gate Group (cfs) F 0.00 •
' Q Total (cfs) * 8946.13 * Gate Open Ht (ft) ' 0.00 *
` Q Weii (cfs) * 8946.13 " Gate kOpen ' 0 •
� � WeiY Flow ATea (sq ft) * 2580.16 * Gate AYea (Sq fU R 4833.11 *
• Weir Sta Lft (ft) " 488.67 * Gate Submezg ' *
• weir Sta Rgt (ft) " 2009.00 * Gate Invert (ft) "' *
* Weir Max Depih IfU * 2.26 * * *
* Weir Avg Depth (ft) * 1.70 * * *
" Weir Submerg + 0.00 * * *
" Min E1 Weir Flow (ft) ' 4827.71 * * *
* Wr Top Wdth (fU • 1520.33 * * �
•#*ii++###ih4fTff�iYMM+1M1:}#Ti'.!�l1SR'.l1:*F'.11:tfiiit4#t�itttl;#:!#it4Rk#�.l41*i1M
INLINE STRUCTURE OUTPOT Profile k10 year Inl Struct:
...�.�+tt..:..:.+.+.+...««.+K+..`.x+.�K+x�x�......+........w+�xwx++.r+.�+x
` E.G. Elev (ft) • 4927.78 + Q Gates (cfs) * *
* W.S. Elev (£U = 4827.�8 R Q Gate Group (cfs) * 0.00 *
* Q Total (cfs) * 1.00 ' Gate Open Ht (ft) * 0.00 *
* 4 Weir (cfs) * 1.00 + Gate #Open * o *
* Weir Flow Area (sq f[) * 1.64 * Gate Area (sq fU * 4841.22 *
* Weir S[a LfC (fU * 776.00 * Gate Submerg i *
* Weir Sta Hgt (ft) 3 818.70 * Gate Invert (ft) * *
• Weir Max Depth (fU � 0.08 • * *
• Weii Avg Depth (fU * 0.04 * * �
* Weir Submerg • a.0o • • *
* Min E1 Weir Flow (fU * 4827 J1 * � •
* Wr Top Wdth (fU * 42.�0 * * *
.+.�x:i..�xxwxxwxxrr:+wtiaxirk�.t�r+i�ax��.+t+rix�i+:{ittt+t+�+��r+x��wxY�
INLINE STRUCTURE OOTPUT Profile $5� yeai Inl StruC[:
414FFs'.lA+14Tf1#ttifft�fi}ti4£Atf#4f4'.!'F'.lMT'.!'F4:!£tt;f#ttf#R11RRi1fYYfi1##+Yk
* E.G. Elev (fU * 4827 J9 � Q Gates (cfs) * *
* W.S. Elev (ft) ' 4827.99 + Q Gate Group (cfsl * 0.00 *
• Q Total (cfs) • 1.21 a Gate Open Ht (fU * 0.00 '
* Q Weir (cfs) ' 1.21 + Gate #Open * 0 *
" Weir Flow Area (sq fU ` 2.47 * Gate Area (sq ft) • 4828.55 *
• Weiz Sta Lft (ft) * �76.00 • Gate Submerg * •
* Weir Sta Rgt (ftl * 828.49 " Ga[e Invert (ftl * "
t Weir Max Depth (fU * 0.09 * * *
Page 13
STVRAIN.rep
• Weir Avg Dep[h (fU ' 0.05 " * *
. R weir Submerg • 0.00 * + w
* Min E1 Weir Flow (ft) * 4827.71 � * i
° Wr Top 47dth (f[) ' 52.49 * * _
«..+:::«+...+,:.:.a+::::,:++.��,�...,..,::.,..x.«,.�..�+....:w:..xwwr..wri
CRO55 SECTION '
AIVER: St. Vrain AiveY
REACH: EXISTING LAKES RS: 69314
INPUT
Description:
Station Elevation Data num= 15
Sta Elev S[a Elev Sta Elev Sta Elev Sta Elev
tF'RR#hf*Rift�t�.1�.11k4₹tf�4#filhit41f1l-.11ifffttkiR�RtAf'.l1ffAFM*#Yif##*Fi+Y#444WYliR
2]5 4839 355 4837 445 4820 553 4806 776 4806
864 4806 993 481"] 1183 4806 1284 4806 1336 4806
1403 4806 1609 4806 1652 4806 1809 4806 2009 4827
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
+..».x«....:x..x+..:.+.::::....+...........«....
2"/5 .07 445 .04 2009 .0"1
Bank Sta: Left Right LengChs: Left Charinel Right Coeff Contr. Expan.
445 2009 319 516 516 .3 .5
Hlocked Obstructions num= 1
Sta L Sta R Elev
r.x��x�:.:::„::+xx.xxH,
2"/5 2065 4819.5
CROSS SECTION OUTPUT ProEile p100 year
.....+..«...:.:.:.x:...x+x......+...+.+:.....w+.....:.....+..+...+++.+........:.::....:.x..xx..
• E.G. Elev (ft) * 4821.11 " Element 3 Left OB * Channel * Right OH *
* Vel Head (fU * 0.00 " Wt. n-Val. * 0.070 ' 0.040 • *
� * W.S. E1ev (fU * 4821.11 * Reach Len. (ft) * 319.00 • 516.00 • 516.00 *
� ' Crit W.S. (ftl * � Flow Area (sq ft) * 3.24 * 2409.06 * +
t E.G Slope (Et/ft) *O.0OOO1B ' Area (sq ft) * 3.24 * 2409.06 * *
* Q To[al (cfs) ' 518.70 • Flow (cfs) * 0.19 • 518.50 • *
* Top width (ft) ' 1513.73 ' Top wid[h (ft) * 5.86 * 75a7.87 * *
* Ve1 Total (ft/s) * 0.22 * Avg. Vel. (ft/sl • 0.06 ' 0.22 • '"
• Max Chl ➢pth (fU * 1.61 ` Hydr. Depth (ft) * 0.55 ` 1.60 • +
' Conv. Total (cfs) `122342.8 * Conv. Icfs) * 45.8 "122297.0 * +
* Length Wtd. (fU * 515.50 * wetted Per. (ft) * 5.96 * 1507.99 ' *
* Min Ch E1 fft) + 4819.50 * Shear (lh/sq fU � 0.00 * 0.00 +• *
• Alpha � 1.o0 • Stream Power (lb/R s) ' 0.00 * 0.00 " •
* Frctn Loss (f[1 ' 0.01 � Cum Volume (acre-fU * 0.95 * 160.65 "' 1.59 +
* C & E Lo55 (fU * 0.00 ` Cum SA (aCYes) ' 0.76 * 100.7B ' *
+w.t��+...::,.�:wrw..�.�+.+r:s+w+++yWa+�yww�::.+xxx.,�..+:.....:::.r���i+a++i��tt�+:i����a��t:.:�•
warning: The conveyance ratio (upstieam conveyance divided by downs[ream conveyance) is less than
0 J or greater than 1.4. This may indica[e the need foz additional cross sections.
CROSS SECTION OOTPUT Profile #500 year
++:ax�+x:�xx�xxw+a�i+.e��+��+x+ax+att*arx��.�+,x++x�.:::�ir++;rt��:ii�ira�rr+�«�R�rxrrr�x�r,irrrii
* E.G. Elev (ftl * 4825.93 • Element * Lef[ OB t Channel • Right OB *
* Vel Head (ft) * 0.01 t Wt. n-Val. * 0.070 • 0.040 • *
" W.S. Elev (ft) ' 4825.92 * Reach Len. (ftl ' 319.00 * 516.00 � 516.00 *
R Crit W.S. (fU • • Flow Area (sq Et) * 92.61 * 9769.90 * *
* E.G. Slope (ft/ft) *0.000052 ' Area (sq ft) * 92.61 * 9769.90 ' '
t Q To[al (cfs) R 8946.13 ' Flow (cfs) ' 28.88 i 8917.25 * *
* Top width (fU * 1584.98 ` Top Width IfU * 31.31 � 1553.6'I * +
i Vel Total (ft/s) x 0.91 R Avg. vel. (E[/sl * 0.31 • 0.91 * *
� Max Chl Dpth (fU * 6.42 * Hydr. Depth (ft) * 2.96 * 6.29 • �
' Conv. Total (cfs) '12a0269.0 * Conv. (cfs) " 4003.6 #1235266.0 * '
* Length Wtd. (ft) • 514.06 * wetted Per. (ft) * 31.87 * 1554.�4 * *
` Min Ch E1 (ft) * 4819.5o t Shear Ub/sq fU " 0.01 * J.02 * •
* Alpha x 1.01 ' Stream Power Ilb/ft s) * a.0o * 0.02 • �
* Frctn Loss (fU � 0.05 R Cum Volume (acre-ft) * 6.13 '" 601.67 * . 3.39 *
* C & E Loss (Et) * 0.01 * Cum SA (acres) * 2.08 * 37�.82 ' •
♦��ta�ti�aa��kt��r+rxiri��rr����a+kwiia�*a+rrrr�r�i:wi�»+ir�ti�i�rw�w��xs�:r:k+x��w�+x+�kx�����
Page 14
STVftAIN.rep
Warning: The ronveyance ratio (upstream conveyance divided by downstream conveyance) is less than
. 0.7 or greater than 1.4. This may indicate the need Por additional cross sections.
CROSS SECTION OUTPUT PYoEile #10 year
xxxF.».�:::.+...x.:::xxx��kxw..«a�Rt.*�{.r.....«+..xR+xx+:RKrtwr.:.x�raaw.ir:irr:.�+�i..+��ii+i::+
' E.G. Elev (fU * 4819.60 * Element * Left OB i Channel R Right Oe *
� Vel Head (ft) ' 0.00 • wt. n-Val. * * 0.040 � *
� W.S. Elev (f[) * 4819.60 � Reach Len. fft) ' 319.00 � 516.00 � 516.00 *
' Crit w.5. (fU * � Flow Area (sq fU * * 149.10 i t
* E.G. Slope (ft/fU *0.000001 * Area (sq ft) * � 149.30 * *
' Q Total (cfs) � 1.00 * Plow (cfs) * * I.00 • *
* Top Wid[h (fU * 1490.44 * Top Width (ft) _ � 1490.44 � t
� vel Tota1 (ft/s) • 0.01 * Avg. vel. (ft/s) * + 0.01 + *
* Max Chl Dpth (ft) * 0.10 + Hydr. �epth (ft) _ * 0.10 * *
* Conv. Total fcfs) t 1193.6 ` Conv. �cfs) * * 1193.6 * *
R Length Wtd. (ft) { 515.63 * wetted Per. (ft) * * 1490.45 '" t
+ htin Ch E1 (EU • 4819.50 * Shear (lb/sq ft) + * 0.00 * *
* Alpha • 1.00 " Stream Power (lb/ft s) * * 0.00 * t
* Frc[n Loss (ft) • 0.00 f Cum Volume (acre-ft) * 0.08 t 21.57 * 0.58 •
* C S E Loss (ft) * 0.00 * Cum SA (acres) " 0.54 * 97.86 * �
i4i1f:'kiY+4f�i�#R44ff+i��,l�.l1:RRFt#'F#*tih#14t'�aiFtit4fititkti4fwF�.!lkA1f**iMl4#X#+R##4Y#4#!#fi4#t}1A
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.� or qreater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Piofile #50 year
«.��++axa....:..ix..k+::t:.�x.r.wwx«rw.�ir+..:.:�i.x+t::..:+.:::::::.R::.x+.+..`kw.x�+.rw�tt�s�:
* E.G. Elev (ft) * 4819.95 * Element " Left OB • ChaRnel * Right OB +
* Vel Head (ft) * 0.00 * Wt. n-VaL i • 0.040 * •
t W.S. Elev (ft) * 4819.95 * Reach Len. (ft) * 319.00 * 516.00 * 516.00 *
* Cxit W.S. (ft) • ' Flow Area (sq ft) * x 6"1�.80 * *
* E.G. Slope Ift/ft) *0.000000 * Area (sq Etl ' * 677.80 * *
t Q Total (cfs) * 1.21 • Flow (cfs) * + 1.21 * *
' Top Width (ft) 3 1496.54 ' Top Width (ft) * " 1496.54 • *
* Vel Total (ft/s) ' 0.00 '" Avg. Vel. (ft/s) • * 0.00 * *
* Max Chl Dp[h (ft) * 0.45 * Hydr. Depth (ft) • +' 0.45 ' *
* Conv. Total (cfs) * 14849.3 " Conv. (cfs7 * * 14849.3 * *
* Length Wtd. (ft) * 515.61 * Wetted Per. (EU * � 1496_60 " _
* Min Ch E1 (ftl * 4819.50 �" Shear (lb/sq ft) * * 0.00 "' *
� A1pha • 1.00 * Stream Power (lb/ft s) * * 0.00 ^ *
* Frc[n Loss (ft) � 0.00 ' Cum Volume (acre-fU * 0.30 * 59.07 � 1.25 *
• C 5 E Loss (£U * 0.00 * Cum SA (acres) * 0.59 * 98.61 * �
++�r:.+rx.:..:..«..,�.+aata+�����:r:..x+::,.R...+.x.�.w..+.��.+�::.�.:a.�a:.:...��+�r:w.�.wxr:i+{tix
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION
RNER: St. Vrain River
REACH: EXISTING LAKES RS: 68798
ZNPUT
Description:
Station Elevation Data num= IS
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
��:xwxrx�Rt.�*e::::r...ix�.+.�+a+++:.+....:�x.�.ux�r:+�.xs,x+rrait++�>::::.�xwxw++a�+
459 4835.4 568 4830 620 4818 728 4812.8 796 4812.8
975 4814 1073 4823 1201 4825.1 1313 4823.5 1418 4819.5
1455 4818 1573 4812.8 1773 4812.8 1973 4817 2052 4826
Manning's n Values num= 3
Sta n Val Sta n val Sta n Va1
fYi###t44Sf}i!}i�.Fih*#i+##iI;AlA#*rttY+*ii44fY1tii
459 .D� 620 .04 2052 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E�cpan.
620 2052 683 1220 1112 .3 .5
Blocked Obstructions num= 1
Sta L Sta R Elev
..:x.w..:+.+«:...++�.+:a
459 2200 4819.5
Page 15
STVRAIN.rep
' CROSS SECTION OUTPUT Pmfile q100 year
. #iM\�#M+4ift4t#�+tt+fti4f#iti+tit+t}ftftRiitfi4R*f4ff#*t+*ix4kFt4xAAxlMAAx£Ix#t1xTtA4tM#kR1flxf
� E.G. Elev (ft1 * 4821.09 * Element * Left OB * Charmel t Right OB *
` Vel Head (ft) * 0.00 ' Wt. n-Val. R 0.070 * 0.040 * *
' W.S. Elev (fU ' 4821.09 t Reach Len. (ft) ' 683.00 ' 1220.00 ' ll12.00 '
* Ciit W.S. (ft) * * Flow Area (sq fU * 15.82 * 1635.93 • *
" E.G. Slope (ft/ft) `0.000046 * Area (sq ft) * 15.82 * 1635.93 ' '
* p Total (cfs) ' 549.57 ' Flow (cfs) * 2.52 * 54�.�6 * *
R Top width (fU * 1078.27 • Top Width (fU • 13.39 * 1064.88 ' *
. * Vel Total (ft/s) * 0.33 ' Avg. Vel. (EC/s) ' 0.16 * 0.33 * *
* Max Chl Dpth (Et) + 1.59 * Hydr. Depth (fU * 1.18 ' 1.54 * '
• Conv. Total (cfs) * 81273.6 * Conv. (cfs) " 372.0 * 80901.6 * •
• Leng[h Wtd. (ft) � 1218.77 * Wetted Per. (fU � 13.59 * 1065.07 " a
• Min Ch E1 (ft) ' 4819.50 * Sheai (lb/sq ft) ' 0.00 * 0.00 * •
* Alpha * 1.01 * Stream Power (lb/ft s) ' 0.00 * 0.00 + •
� Frctn Loss (fU ` 0.06 * Cum Volume (acre-fU + 0.88 * 136.69 • 1.59 *
* C 5 E Loss (ft) � 0.00 ' Cum SA (acres) * 0.69 • 85.54 • *
....x.:......x....+.,+.:......+........«..w:ww+xx:,..x„+..:.....:.:+......................+...
Warning: Divided flow computed for this cross-section.
CROSS SECTION OUTPUT Profile #500 year
..:+:.xxs+.:.x..+....++»+.w..+.....:.+:..x:...+...+.+s:..:r..:...x::.:....x.:x..�:w..+x.+��k...
* E.G Elev (fU * 4825.87 + Element � Left OH * Channel • Right OB •
• Vel Head (ft) * 0.04 � Wt. n-Val. * 0.070 * 0.040 * �
� W.S. Elev (fU * 4825.63 � Reach Len. (ft) • 683.00 * 1220.00 * 1112.00 R
R Crit w.S. If[) * * Flow Area (sq Et) * 12�.80 * 7475.68 ' *
* E.G. Slope (Et/ft) *0.000212 • Aiea (sq ft) * 127.80 * 7475.68 * *
* Q Total (cfs) *12281.86 * Flow (cfs) * 94.44 *12187.42 * •
• Top Width (ft) + 1464.38 * Top Width (ft) ' 33.91 * 1430.4� * t
* Vel Total (ft/s) * 1.62 ' Avg. Vel. (ft/s) * 0.74 * 1.63 * *
* Max Chl �pCh (ftl * 6.33 * Hydr. Depth (ft) * 3 J7 * 5.23 ' '
' Conv. Total (cfsl '842546.3 ` Conv. (cfs) • 64�8.5 •836067.8 * *
� Length Wtd. (fU • 1217.93 * Wetted Per. (ft) i 34.63 * 1431.09 � *
� Min Ch E1 (ft) * 4819.50 * Shear (lb/sq ft) • 0.05 ` 0.0� " "
' Alpha ' 1.01 * Stream Power (lb/ft s) • 0.04 * o.11 ' *
p * Frctn Loss (EU + 0.29 • Cum Volume (acre-fU Y 5.33 * 499.53 i 3.39 +
7 * C & E Loss (fU 0.01 * Cum SA (acres) 1.94 93.15
+x::..xx+>xx.:::.:.::..�r:�wi+.�.+��xx+.:+r�x+x.++..xx�t+a�aa�+�+��+.tRxRr::.+a�:a�t��+�w.r«+xx
� CROSS SECTION OUTPUT Pzofile #10 year
. :.......:x:x.w..w...�+:+�.+..+e�+..»...�xx.....:...:...x:,.:....++.....«+�x....++...+..++:.:x...
' E.G. Elev (ft) " 4819.60 • Element • Left OB * Channel * Right OH *
� ve1 Head (ftl ' 0.00 * wt. n-Val. • 0.070 � 0.040 * *
' W.S. Elev (ft) ' 4819.60 " ReaCh Len. (ft) • 683.00 ' 1220.00 • 1112.00 *
* Crit w.5. (ft) * ' Flow Area (sq ft) * 0.67 * 99.02 * R
* E.G. Slope (ft/ft) *0.000002 a Area (sq fU ' 0.67 + 99.02 * *
* Q Total (cfs) * 1.00 * Flow (c£s) * 0.00 * 1.00 * `
+ Top Width (fU * 1003.34 • Tap Width (ft) • 6.93 * 996.41 * *
* Vel Total (ft/s) ' 0.01 * Avg. Vel. (ft/s) • 0.01 ^ 0.01 ' '
* Max Chl Dpth (ft) ' 0.30 * Nydr. Depth (ft) • 0.10 ^ 0.10 + "
* Conv. To[al (cfs) * �92.2 + Conv. (cfs) * 3.0 � �89.2 * '
• Length Wtd. (ft) • 1218.99 ' Wetted Per. (ft) * 6.94 * 996.42 • �
* Min Ch E1 (£t) + 4819.50 > Shear Qb/sq ft) * 0.00 * 0.00 � *
* Alpha k 1.00 � Siream Power (lb/£t s) • 0.00 • 0.00 ' '
' Frctn Loss (fU ' 0.00 • Cum Volume (acre-fU * 0.07 * 20.70 * 0.58 *
* C 6 E Loss (ft) • O.Oo * Cum SA (acres) • 0.51 * fi3.13 ^ •
xx...x>+.+::.+..w..»..w..x.+.++..+....x..e++...+.rx�•.++....+x.�:•+++a....x..�++•++.+.•rx.x+.«x
Warning: Divided flow computed for this cross-section.
CROSS SECTION OUTPUT Profile #50 year
###+4f1+111xIFARitRfi##ikiflflxk##*#iif*Mfi�44Yiflxfxtlil*4#1lkRflAf+#1iY11Y41!#liiii#tf*k#*M#4
* E.G. Elev (fU � 4819.95 * Element * Left OH • Channel • Bight OB x
* Vel Head (fU * 0.00 * wt. n-Val. * 0.070 " 0.040 * �
• W.S. Elev (ft) " 4819.95 * Reach Len. (ft) * 683.00 • 1220.00 * 1112.00 *
" Crit W.S. (ft) ' * Flow Area (sg fU x 3.40 * 455.13 " �
� E.G. Slope (Et/fU *0.000000 * Area (sq Et) ' 3.40 * 455.13 * *
� Q Total (cfs) • 1.21 3 Plow (cfs) * 0.00 • 1.21 * *
* Top Widih (ft) R 1021.15 * Top Width (ft) � 8.47 * 1012.68 * *
* vel Total (ft/s) * 0.00 � Avg. Vel. (ft/s) * 0.00 * 0.00 * *
* Max Chl Dpth (ft) * 0.45 + Hydr. Depth (fU • 0.40 + 0.45 * *
* Conv. Total (cfs) ' 9958.6 • Conv. (cfsl • 39.1 • 9919.5 * •
� * Length Wtd. (ft) * 1218.95 • Wetted Per. (ft) * 8.52 • 1012.74 * `
Page 16
STVRAIN.rep
'�� = Min Ch E1 Ift) * a819.50 " Shear (lb/sq fU ' 0.00 * 0.00 � •
* Alpha * 1.00 * S[ream Power (lb/ft s) * o.00 * O.00 � *
� • Prctn Loss (ft) * 0.00 ' Cum Volume (acre-ft) * 0.28 ' 52.36 " 1.25 *
* C E E Loss (ft) • 0.00 ' Cum SA (acres) * 0.56 ' 83.75 * •
r+�x..,.,::.�:,.,..Wxx�xiax«x+:�...xx...xrr:xrwxx�+ra..�+.r.�xwxrx�.*+x«+wivK�x�+i*tirtikx.x+x�
Warning: �ivided flow computed for this cross-section.
CROSS SECTION
RIVER: SL Vrain River
REACH: E%ISTING LAKES A5: 6�5�8
INPUT
Description:
Station E1eva[ion Data num= 18 .
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.+.�:..::....+«.x+xxi.x��...+..+..+.:.t.:at+.�+�at�♦tir�t�ix+«w�xxx.r««r�wRrwwxk
1150 9850 1200 4848 7288 4846 1302 4843 1395 4825
1442 4816 1464 4812.8 1593 4809 ll98 4806 1863 4806
1950 4806 1996 4806 2026 4806 2058 4806 2196 4806
2380 4812.8 2398 4816.5 2528 4830.5
Manning's n Values num= 3
Sta n Val S[a n Val Sta n Val -
..:......:.....:.+.:::.:.......+.x+.....,.....xx
1150 .07 1395 .04 2528 .07
Bank Sta: Le£t Right Lengths: Left Channel Right Coeff Contr. Expan.
1395 2528 684 810 815 .1 .3
Blocked Obstructions num= 1
Sta L Sta R Elev
x...:x,.+..«....�.x.+...
1150 2600 4919.5
� CROSS SECTION WTPUT PYofile #100 year
+wx+«+�E.r���+.�.��a+t.*.wxw:...x::r::a:rtFa�+xrri.+w+w+xr�R+w::::�.:t..::�+a.��i+t:t.t�*+��+x+•
� E.G. Elev (ft) * 4821.03 * Element * Lef[ OB • Channel • Right OB *
* Vel Head (fU " 0.00 * Wt. n-Val. • • 0.040 ` *
* W.S. Elev (ft) * 4821.03 ' Reach LeR. (ft) ' 684.00 + 810.00 * 875.00 *
' Crit W.5. (ft) * � • FlOw AYea (Sq fU ' * 1552.03 * *
• E.G. Slope (ft/ft) •0.000052 ' Area (sq ft) " " 1552.03 * �
* Q Tota1 (cfs) * 549.5� • Flow (cfs) ' ` 549.5� * *
* Top Width (ft) * 1024.36 ' Top Width (ft) * * 1024.36 * *
• ve1 Total (ft/s) * 0.35 � Avg. Vel. (ft/s) * * 0.35 * *
* Max Chl Dpth (ft) � 1.53 * Hydr. oepth (ft) " * 1.52 * *
' Conv. Total Ic£s) * �6044.7 * Conv. (cfs) ' ' 76044.7 ' *
* Length wtd. (fU * 810.00 * Wetted Per. (ft) * * 1024.59 * *
* Min Ch E1 (ftl ' 4819.50 * Shear (lb/sq ft) * • 0.00 ' *
` Alpha * 1.00 • Stream Power Qb/ft s) + * 0.00 ' `
* Frctn Loss Ift) ' 0.06 * Cum Volume (aCre-ft) • 0.�6 * 92.05 * 1.59 •
* C & E Loss (ft) * 0.00 ' Cum SA (acres) * 0.58 * 56.28 * *
•at:.:�::s:.i�.�x+w++..xxw�+:t+::+��t�tF�++�www+��x��x+++t+a+�ta:+r�++atia++a++�+�a:�t�++i:+i:�
CROSS SECTZON OUTPUT PYofile #S00 yeaL
..+:::...::...x.x.x.x.x+.•x:x�:..::+.+++»w..a..x�..�.x.xx+++:.x.++..++.+:.+..+.x+..x•..•.�.+.•.
` E.G. Elev (fU * 4825.5� • Element * Left OB ' Channel * Right OH *
• Vel Head (ft) * 0.06 * Wt. n-Val. * 0.07� + �.040 ' *
* W.S. E1ev (ft) • 4825.A • ReaCh Len. (ft) � 684.00 * B10.00 * 815.00 •
• Crit W.S. (f[I * * Flow Area (sq ft) � 0.68 • 6287_10 * *
* E.G. Slope (Et/ft) '0.000267 * Area (sq ft) * 0.68 * 6287.10 * *
* Q Total (cfs) *12281.86 * Flow (cfs) " 0.09 *12281.77 � *
* Top Width (fU * 1089.34 ` Top Width (ft) * 2.65 * 1066.69 • �
• Vel Total (Pt/s) ' 1.95 ' Avg. Vel. (ft/s) * 0.14 k 1.95 * *
` Max Chl Dpth (ft) * 6.01 ' Hydr. Depth (fU * 0.26 * 5.79 * '
* Conv. Total (cfs) *752303.9 " Conv. (cfs) * 5.7 '752298.7 * *
• Length Wtd. (ft) � 809.97 ' Wetted PeL (fU * 2.70 k 1087.53 * *
• Min Ch E1 (EU * 4819.50 * Shear (lb/sq £t) + 0.00 * 0.30 � *
* Alpha * 1.00 * Stream Power (lb/ft s) + 0.00 * 0.19 * *
* Frctn Loss (ft) * �.32 * Cum Volume (acre-fU ' 4.32 * 306.80 * 3.39 �
• C & E Loss (ft) * 0.01 + Cum SA (acres) * 1.56 • 57.90 * *
' #*AxiW+4i+ik11F+#k#iifii#fkAilh4iiiiil*kkF41444i1141M3iMf#iAxif#Fi1ff!#+41#ii1444*#}4!*M*#�M*#*
Page 1�
STVRAIN.rep
CROSS SECTION OUTPUT Profile #10 year .
� ..*+w.:.+�..a:.:..:.,,.:::..:+.x...i+«.xiEr,:..:.....Fi.tx�+x:.:.w.+.�...+.....::::::.::..:.:::
' E.G. Elev (ft) * 4819.60 ' ElemenC " Left OB • Channel * Right OB *
* Vel Head (Et) * 0.00 * W[. n-Val. • ' 0.040 * *
* W.S. Elev (ft) ' 4819.60 ' Reach Len. (ftl * 689.00 * B10.00 * 815.0� "
* Crit w.S- (ft) � ' Flow Area (sq ft) * ' 9�.93 * i
• E.G. Slope (ft/Et) '0.000002 ` Area (sq ft) * ' 97.93 * *
* Q To[al (cfs) ' 1.00 " Flow (cfs) ' • 1.00 • *
* Top Width (fU ` 1003.55 * Top Width (ft) * • 1003.55 * '
* Vel Tota1 (f[/s) * 0.01 • Avg. Ve1. (ft/s) * ' 0.01 • �
* Max Chl Dpth ff[) ' 0.10 ' Hydi. Depth (fU * * 0.10 ' '
� Conv. Total (cfs) * �71.1 " Conv. (cfs) * * 771.1 * *
• LengCh Wtd. (fU ` 810.00 " Wetted Per. (ft) R • 1003.5� * *
• Min Ch E1 (ft) � 4819.50 � Shear (16/sq fU * ' 0.00 * *
• Alpha * 1.00 " Siream Power (lb/ft s) ' • 0.00 ' '
* Frctn Loss (ftl * 0.00 * Cum Volume (acre-ft) * 0.07 ' 17.34 * 0.58 *
* C & E Loss (ftl � 0.00 * Cum SA (acres) • 0.46 ' 55.12 * '
thAFt+t�t£x�kFkitf�ffFfiifltfft4#k#R�xxFf�4ii#ikF1+F1A4th#�k#+###i1iRWA��tAF�Yif#fff4t4YF#11411
CROSS SECTION OUTPUT Profile q50 yeai
:w.t+.F*i�it��a,irt.r.�:FRt+xx:w::.iai�axx..+.:.++:ii+iv�+xxx:xw�.::..��.iw..r�xxxw,::.:::.:.:.
* E.G. Elev (ft) " 4819.95 • Element * Left OB ' Channel * Right OB *
� Vel Head (fU ' 0.00 * Wt. n-Val. ' • 0.040 ` *
* W.S. Elev (fU ' 4819.95 * Reach Len. (fU * 684.00 ' 810.00 * 815.00 *
* Crit W.S. (ft) * • Flow Area (sq ft) � " 456.5� * *
* E.G. Slope (£t/ft) `0.000000 ' Area (sq ft) } * 456.57 * R
* Q Total (cfs) ' 1.21 * Flow (cfs) t • 1.21 * •
* Top Width (ft) ' 1008.72 * Top Width (ft) * * 1008.72 * *
* Vel Total (ft/s1 ' 0.00 * Avg. Vel. (ft/s) * ' 0.00 * '
E Max Chl Dpth (ft) ' 0.45 * Hydr. Depth (ft) * ` 0.45 * *
* Conv. Total Icfs) • 9997.9 ' Conv. (cfs) • " 9997.9 * •
t Length Wtd. (ft) ' P10.00 ' wetted Per. (ft) * * 1008.99 • '
* Min Ch E1 (fU ' 4819.50 " Sheaz (lb/sq ft) ' ' 0.00 * '
� Alpha ' 1.00 ' Stream Power (lb/ft s) • * 0.00 ' *
• Frctn Loss (fU * 0.00 * Cum Volume (acre-£t) ' 0.26 • 39.59 * 1.25 '
* C & E Loss (ft) * 0.00 * Cum SA (acres) • 0.49 • 55.44 * '
t .:.::::�i:k.«...+..«.�.+,.�3«:xtRx.::.:x�ixxr.i+��i+a»++x��i++a+r.xx+:�:t�t.+xwxiw.x.e�a�a+t+i
1 '
� CROSS SECTION �
RIVE2: St. V[ain River
REACN: EXISTING LAKES RS: 66768
INPUT
Description:
S[ation Elevation DaCa nUm= �5
Sta Elev Sta Elev Sta Elev Sta Elev S[a Elev
.+:�x.�...:+:.:..+......��.....+....:.+.....�..++....�...+...+�:...+.xx.x:.....x
1310 4835.5 1325 4834 1350 4829.5 1390 4833 1402 4829
1433 4823 1445 4818.5 1466 4812.8 1539 4812.8 1571 4812.8
1604 4812.8 1643 4812.8 16�2 4812.8 1748 4872.8 1801 4812.8
1932 4812.8 1944 4812.8 1961 4812.8 1978 4812.8 2002 4812.8
2106 4812.8 ' 2203 4812.8 2320 4813 2362 4820 2402 4822.8
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
iXIhAlstRftiiiki4tt11#kATxkithYTAfTatYAxTfffWwAx
1310 .0� 1433 .04 2402 .07 �
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Eapan.
1433 2402 713 713 713 .1 .3
Blocked Obstructions num= 1
Sta L Sta R Elev
+....w.:xx.x+..a..a....:
1330 2402 4819.5
CROSS SECTION OUTPUT Profile #100 year
::.x•xx•xx�+...:::++..a::.xx�:....a.:...a...w..+..::.x+:+.::.:x+::.:x«:+.....x....:.:�..•+.++..
* E.G. Elev (fU * 4820.97 • Element • Left OB " Channel * Right 06 *
� Vel Head (fU * 0.00 * wt. n-Val. ' ' 0.040 * *
� W.S. Elev (ft) * 4820.97 + Reach Len. (ft) * 713.00 * 713.00 * 713.00 R
* Crit W.S. (fU * ' Flow Area (sq fU ` ' 1359.59 � "
.i � E.G. Slope (ft/fU '0.000108 ` Area (sq ft) * * 1359.59 " *
Page 18
STVRAIPI.rep
* Q To[al (cfs) * 673.1� * Flow (cfs) ' * 673.17 • �
' * Top Width (fU * 93�.42 * Top Width (ft) * ' 937.42 * *
� Vel Total (ft/5) ' 0.50 * Avg. Vel. (ft/s) " + 0.50 ' *
� Max Chl Dpth (fU ' 1.4� • Hydx. Depth (ftl * * 1.45 * *
* Conv. Total Icfs) * 6469�.3 * Conv. (cfs) ' ' 6469�.3 ' *
' Length wtd. (ft) * �13.00 ' wetted Per. (ft) * ' 937-]� * "
' Min Ch E1 (fU * 4819.50 f Shear (lh/sq Et) " * 0.01 ' *
� Alpha * 1.00 * Stream Power (1b/ft s) * � 0.00 * '
* Frctn Loss Iftl ' 0.10 ` Cum Volume (acre-ft) " 0.76 * 64.96 * 1.59 *
* C & E Loss (ftl * 0.00 ' Cum SA (acres) * 0.58 ' 38.04 * *
...:w..a..:�..s::::.::.:.:.::..:....t.+�.x...+,::1..=.t:.��.��k�xx.�xx.+..+:.._::..,�:i:.�{.«�.
CROSS SECTION OUTPUT Profile p500 year
..a...+.+....+:..::...:....a::...r+....x.....xx:a.......+.................xx.+r.>:..w.+...++...
* E.G. Elev (ft) * 4825.25 * Element * Left OB * Channel * Right OB `
* Vel Head (ft) * 0.12 * Wt. n-Va1. * 0.070 • 0.040 * *
* W.S. Elev (ft) ` 4825.13 ` Reach Len. (ftI * 713.00 * 713.00 * 713.00 '
* Ciit W.S. (fU ' ' Flow Area (sq ft) * 11.71 ' 5361.33 ' *
• E.G. Slope (ft/ftl *0.0005�4 " Area (sq ftl ' 11.�1 " 5361.33 ' *
* Q Total (cfs) *14902.�8 * Flow (cfs) * 6.13 *14896.65 ' *
* Top Width (ft) ' 980.00 R Top Width (ft) * 11.00 * 969.00 * *
* Vel Total (ft/s) ' 2.77 * Avg. vel. (ft/s) * 0.52 ' 2.78 • #
* Max Chl Opth (fU * 5.63 * Hydz. Depth (fU * 1.06 * 5.53 * *
* Conv. Total (cfs) *621956.6 * Conv. (cfs) * 255.9 *621700.6 * *
* Leng[h Wtd. (ft1 • 913.00 ' wetted Per. (ft) ' 11.20 * 972.10 * *
* Min Ch E1 (ft) � 4819.50 • Sheac (lb/sq ft) * 0.04 * 0.20 " '
* Alpha � 1.00 ' Stream Power (lb/ft s) * 0.02 � 0.55 * x
* Frctn Loss (ft) � 0.55 * Cum Volume (acre-fU * 4.22 " 198.50 " 3.39 *
* C 6 E Loss lft) + 0.01 * Cum SA (acsesl ' 1.45 * 38.�9 * '
rx.:::::.wx.+w..�+.+.+x:.x«.xxrx::.::*<xi�w+v+r�.rx+�w:>�a�t+�x.xi�+x���*rr�vr��wx�wx+:w:tt:��r
Warning: The cross-section end poinis had to be extended vertically for the computed water surface.
CAOSS SECTION OUTPUT Profile $10 year
x«.xxiaa.x+w.x�+tx.++.x.+x.w*x.:..r::::a..��.�+*++.a�R.x+++t+t�«i.+i+xaaa+wwyr»+x..R+x+a+�+.t:
* E.G. Elev (ft) * 4819.60 * Element ' Left OB * Channel " Right OB •
* Vel Head (ft) * 0.00 * Wt. ❑-Val. ' • 0.040 * '
' W.S. Elev (fU ' 4819.60 * Reach Len. (ft) " �13.00 • 713.00 * �13.00 "
� * Csi[ W.S. (ft) * * Flow Area (sq Et) ' * 88.22 * �
' E.G. Slope (ft/fU '0.000002 * Area (sq ft) ' • 68.22 w r
' Q Total (cfs) * 1.00 * Flow (cfs) ' * 1.00 * "
* Top width (ft) * 91�.50 * Top Width (fU * * 917.50 * *
� Vel Total (ft/5) * 0.01 ' Avg. Vel. (f[/S) ` * 0.01 * *
* Max Chl Dpth (ft) * 0.10 • Hydr. �epth (ft) • ' 0.10 * *
' Conv. Total (cfs) * 687.8 ' Conv. (cfs) ' � 68�.8 * *
* Length Wtd. (ft) * 713.00 * Wetted Pez. (ft) * * 917.53 * •
* Min Ch E1 (fU * 4819.50 " Shear (lb/sq ft) * * 0.00 * *
* Alpha * 1.00 ' Stream Power Qb/ft s) ' � 0.00 * *
* Frctn Loss (ft) " 0.00 * Cum Volume (acte-ft) • 0.07 * 15.61 * 0.58 •
' C & E Loss (ft) * 0.00 * Cum SA (acres) * 0.46 * 3�.26 * '
sx+r.w.+....«+r..�.i�t+a.�rR�:R++..,+.:::tt.+a++x��.++i+x+.:xx:xx+x+x::w...:.:.::xt+i+a:a.+i�ti
CAOSS SECTION OUTPUT Profile #50 year
+�i.xr�.i++�+.t�+�+:::..:.:.i:++i��..�x..:::4�t�t:Fr�ti�t...+x�r+rt��..rt...wxxr�:x.xx:x:x+�=::+x
* E.G. Elev (£U * 4819.95 • Element * Lef[ OH * Channel * Right OB *
* Vel Head (ft) * 0.00 * Wt. n-Val. * * 0.040 * x
* W.S. Elev (ft) ' 4819.95 * Aeach Len. (fU� * �13.00 * 713.00 ' 713.00 �
* Crit W.S. (ft) * ' Flow Area (sq ft) ' • 417.15 * *
* E.G. Slope (ft/fU *0.000000 • Area (sq ft) ` • 417.15 * '
* Q Total (cfs) * 1.21 * Flow (cfs) * * 1.21 * *
* Top Width (ft) * 920.b0 * Top Width (fU * * 920.60 - *
* Vel Total (ft/s) * 0.00 * Avg. Vel. (ft/sl * t 0.00 * '
Y Max Chl Dpth (ft) * 0.45 ' Hydr. Dep[h (ft) * * 0.45 * *
* Conv. Total (cfsl t 9141.3 * Conv. (cfs) * • 9141.3 * *
* Length Wtd. (fU ' �13.00 * Wetted Per. (ft) " t 920 J2 * "
• Min Ch E1 (Et) * 4819.50 * Shear (16/sq ft) i * 0.00 * '
* Alpha + 7.00 * Siream Power Qb/ft s) * * 0.00 * *
" Frctn Loss (£U � " 0.00 * Cum Volume (aCre-fU * 0.26 * 31.4� * 1.25 *
* C & E Loss (ft) * 0.00 • Cum SA (acres) * 0.49 • 3�.50 ^ *
#+##i4Y#4F#Y++i{k#F+i#ti+fithf+�f44ah44i#iiR1Y44W#Y�1ff1I*!ik#itflkRli11fi1x1fM44fi41IRl1ktnil•
CROSS SECTION
Page 19
STVRAIN.rep
RIVER: St. Vrain Rivei
' REACH: EXISTING LAKES- RS: 66055
INPUT
Description:
Station Elevation Data num= 8
Sta Elev Sta E1ev S[a E1ev Sta Elev Sta Elev
:r+...+s.:...:+:.:...+.....+..�.x:..�..R.,:.:.+:+.+t:��...�...FttiiaFt«sii+a.+ir
855 4845 1000 4815 1162 4806 1582 4806 1656 �806
1708 4806 1763 4810 1824 4822.9
Manning•5 n Values num= 3
Sta n Val Sta n Val Sta n Val
..+......++..++..:..:.,.:::::...+........++.....
855 .07 1000 .04 1B24 .0�
Bank Sta: Left Right Lengths: Left Channel Aight Coeff Contr. Expan.
1000 1824 1075 865 216 .I .3
Blocked ObsCructions num= 1
Sta L Sta R Elev
.::.+.+r..:+..:xk.:..�..
855 1829 4819.5
CROSS SECTION OUTPUT Profile q100 year
..:::,::,.....:...x.:..::.:....:a.........x+......:..:.....x+.a«+....«...ixx.�++x..:.>.......+.
t E.G. Elev (fU * 4820.88 i Element * Left OB x Channel • Right OB i
t Vel Head (ft) ' 0.01 * Wt. n-Val. * 0.070 * 0.040 * *
* W.S. Elev (ft) • 4820.8� ' Reach Len. (ft) * 1075.00 * 865.00 * 216.00 *
* Crit W.S. (ft) • • Flow Area (sq ft) ' 34.38 * 1112.58 * '
' E.G. Slope (ft/ft) •0.0001�0 * Area (sq EU a 34.38 * 1112.58 ' '
r Q Total (cfsl * 673.17 � Flow (cfsl � 10.�6 * 662.41 i *
* Top Widih IEt) * fi42.79 � Top width (fU ' 28.38 ' 814.41 * �
* Vel Total (Et/S) * 0.59 * Av9. Vel. (ft/s) * 0.31 ' 0.60 * '
k Max Chl DpGh (ft) * 1.37 ' Hydr. �epth (ft) " 1.21 ' 1.37 * "
* Conv. TOGal (cfsl * 51705.9 • Conv. (cfs) ' 826.6 � 50879.4 W '
* Length Wtd. (£t) • 866.68 * WetCed Per. (ft) ' 28.52 * 814.55 * *
* Min Ch E1 (fU ` 4819.50 * Shear Qb/sq fU * 0.01 • 0.01 * *
.s * Alpha * 1.02 * Stream Power (lb/ft s) * 0.00 ' 0.01 r `
* Fxctn Loss (ft) * 0.12 ' Cum Volume (acre-ft) * 0.48 ' 44 J4 ' 1.59 *
' C & E Loss (ft) * 0.00 � Cum SA (aczes) ` 0.35 * 23 J1 * '
x+:..::.�.x.+:++++�++iaii.t�+...+:.««+t+wixrxxx��t+Ri+Fxxx+r+.x.::..Frxw�ixxxxwxxrR+:x+:�::.�tF
CROSS SECTION OOTPUT Pmfile #500 year
........+...+:.:..:,:.:......:...+.:..+.......+x:.w::....w.x++.+.::,+.....+.+.+....xx..x:.::::.
• E.G. Elev (R) * 4624.69 t Element * Left OB s Channel • Right OB •
* Vel Head (Ft) * 0.20 ' w[. n-Val. * 0.070 * �.040 ' '
* W.S. Elev (ft) ' 9824.49 * Reach Len. (ft) * 10�5.00 * 865.00 * 216.00 *
+ Crit w.S. (fU * ' Flow Area (sq ft) * 168.85 * 4087.04 * '
� E.G. Slope (ft/EU *0.001700 * Area (sq ft) ' 168.85 * 4087.04 ' '
* Q Total (cfs) *14902.78 * Flow (cfs) * 281.26 *14621.52 ' •
* Top Widih (ft) * 869.88 � Top Width (ft) ' 45.88 • 829.00 * *
* Vel Total (ft/s) * 3.50 � Avg. Vel. (ft/s) � 1.6� * 3.SB * '
• Max Chl opth (fU * 4.99 * Hydr. Depih (ft) ' 3.68 ' 4.96 * '
' Conv. Total (cfs) •449354.� ' Conv. (Cfs) � 8480.7 +440873.5 * '
* Length Wtd. (ft) * 867.20 * wetted Per. (fU " 46.39 • 025.95 ' *
* Min Ch E1 (ft) * 4819.50 " Shear (Sb/sq ft) * 0.25 * D.34 * *
* Alpha * 1.03 ^ Stream Power (lb/ft s) + 0.42 • 1.22 * `
* Frctn Loss (ft) * 0.90 " Cum Volume (acre-ft) ^ 2.�5 * 121.17 * 3.39 *
* C 6 E Loss (ft) • 0.02 " Cum SA (acres) ' 0.98 ' 24.11 • *
rxr�kxxxwrxxw:x::i.+�tyxw.�xx+:.t::�+aR�Rrw+:+++K+�x�.::t:�ta+.�:::�i+�ti+.�.«x.+;++*:+K.x:rx.:
warning: The cross-section end poinis had to be extended vertically Eor the computed water surface.
CROSS SECTION OUTPUT Profile #10 year
...+::..+......x.+:.::+.+..a.x+..:x..:.a.x.....+.+...x..+....+.x::..........x.��+�.+++...x:.::.
' E.G. Elev (ft) * 4819.59 * Element ' Left OB * Channel • Right OB •
* Vel Head (fU " 0.00 ` W[. n-Val. • 0.070 ' 0.040 • •
� W.S. Elev (ft) * 4819.59 " Reach Len. (ft) t 1075.00 * 865.00 * 216.00 *
* Crit W.S. (ft) R • Plow Area (sq ft) * 2.07 • 76.16 * *
R E.G. Slope (ft/ft) •0.000003 * Area (sq ft) * 2.0� * 76.16 • '
+ Q Total (cfs) � 1.00 + Flow (cfs) " 0.02 * 0.98 * *
* Top Width (Et) ' 830.57 � Top Width (ft) ' 22.21 • 808.37 * {
� • Vel Total (ft/s) * 0.01 ` Av9. Vel. (ft/s) ' 0.01 ' 0.01 � i
• Max Chl Dpth (fU • 0.09 � Hydr. Depth (fU ' 0.09 * 0.09 '
Page 20
STVRAIN.rep
` Conv. Total (cfsl ; 594.8 " Conv. (cfs) * 9.0 * 585.8 * '
� • Length Wtd. (fU * 866.60 � Wetted Per. (ft) * 22.22 ' 808.38 * *
� Min Ch E1 (ft) * 4819.50 * Shear (lb/sq fU ' 0.00 * 0.00 * *
* Alpha � 1.01 � Stream Powez (lb/ft s) * o.00 • 0.00 * •
* Frctn Loss (fU ' 0.00 ' Cum Volume (acre-fU ' 0.05 * 14.27 * 0.58 '
* C & E Loss (ft) • 0.00 * Cum SA (acres) * 0.27 ' 23.14 * *
;.�+x.r.++..::,++..+...�.:...�+�r�«+�+x.:,..:.:*x.x..:...«+..r:..+.«.._,.+:+i.iki�tii�+xx+rt....
CROSS SECTION OUTPUT Profile #50 year
:«:....:+:.+........x....+.x..»x...,..a.+xw..xx..::+.....:..................+»..+...+++�+......
" E.G. Elev (EC) * 4819.95 ' Element " Left OB ° Channel * Right OB *
* Vel Head (ft) * 0.00 * Wt. �-Val. ' 0.070 * 0.040 ' '
" w.S. Elev (ft) * 4819.95 * Aeach Len. (ft) ' 7075.00 * 865.00 ' 216.00 *
R Crit W.S. (fU ' * Flow Area (sq ft) ' 10.38 * 367.37 * '
* E.G. Slope (ft/ft) *0.000000 � Azea (sq ft) * 10.3B ' 367.37 * `
• Q Total (cfs) * 1.21 * Flow (cfs) ; 0.02 * 1.19 * *
i Tap Wid[h (ft) * 834.02 * Top Width (ft) * 23.94 * 870.07 * '
• Vel Total (ft/s) * 0.00 * Avg. Vel. (ft/s) * O.Oo * 0.00 * *
* Max Chl Dpth (fU * 0.45 r Hydr. Oepth (fU * 0.43 * 0.45 * '
' Conv. Total (cfs) * 8181.0 * Conv. (cfs) ` 125.9 � 8055.1 * '
* Length Wtd. (ft) " 866.62 * Wetted Per. (ft) * 23.99 * 810.12 � *
• Min Ch E1 (ft) * 4819.50 ' Shear (lb/sq ft) * 0.00 * 0.00 * '
• Alpha * 1.01 * Stream Power (lb/ft sl * 0.00 * 0.00 * `
* Frctn Loss (fU * 0.00 * Cum Volume (acre-ft) * 0.17 * 25.05 * 1.25 '
* C S E Loss (fU * 0.0� * Cum SA (acres) * 0.30 • 23.34 * '
tti+tTif4ttlttitita��titi4itt+4[+#tY#*1SA#k!l11i#Y#inxh£ttA£fYft+i4tii44*iYI�l4ifxl�fRRkx4#iY4F
CROSS SECTION
RIVER: S[. Vrain River
REACH: EXISTING LAKES RS: 65190
INPUT
Description:
Station Elevation Data num= 10
� Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
. .::.:.x..:.::,x.:::x=.++::.+.t......xxx.+:......+x..x.x...:...:.:r.+:.++:.wx:x.x
846 4830 948 4821 110� 4815 1200 4816 1326 4809
1408 4810 1564 4810 1�65 4810 2097 4810 2173 4822.6
Manning'S n ValUes num= 3 �
Sta � Val Sta n Val Sta n Val
<x....xx:xxx.x.:.:xxxx+.�..+.++<.++.w.xrx.+x.+a.
846 .07 948 .04 2173 .07
eank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E�cpan.
998 2173 140 140 140 .3 .5
Blocked Obstructions num= 1
Sta L Sta R Elev
•�t=+.iF+�.�r+:+e.���t.a
846 2173 4819.5
CRO55 SECTION OUTPUT Profile #100 year
+x+�.i.x��.k=.+.t::kF+.+�+x.�+.....+xxwx+:t:+it+++�..:::.:::�a:+it�a+�r��+warxxrr.�:x���:tt++i+
* E.G. Elev (fU x 4820.76 * Element * Left OB * Channel * Right OB *
' Vel Head (ft) 3 0.00 * Wt. n-Val. * • 0.040 R '
� W.S. Elev (ft) • 4820.75 " Reach Len. (ft) * 140.00 * 140.00 * 140.00 k
* Crit W.S. Ift) � 4819.72 * Flow Area (sq ft) * � 1488.91 * '
* E.G. Slope (ft/ft) *0.000112 * Area (sq ft) * * 1488.91 * *
* Q Total (cfs� r 6�3.1� � Flow (cfs) * � • 673.17 * •
* Top Width (ft) * 1207.36 � Top Width (ft) * * 12a7.36 ' '
• Vel Total (ft/S) ' 0.45 * Avg. Vel. (ft/5) � * 0.45 * *
� Max Chl Dp[h (ft) * 1.25 * Hydr. Depth (ft) • * 1.23 * *
* Conv. Total (cfs) * 63600.6 * Conv. (Cfs) * * 63600.6 * *
• Length wtd. (fU * 140.00 * Wetted Per. (ft) * • 1207.49 � '
* Min Ch E1 (ft) * 4819.50 * Sheaz (lb/sq ft) * • 0.01 * *
* Alpha * 1.00 * Stzeam Power (lb/ft s) * * o.00 * *
* Frcin Loss (ft) * * Cum Volume (acre-ft) * 0.05 * 18.91 * 1.59 *
* C & E Loss (ft) * * Cum SA (acres) • ' 3.63 * *
44#kAAxAktf*kiiltW5i414tfAx1lk**1�{4k1##1itiWilliWRi111R41f1#il4k#R+iMwW##Y#�tY1Y14Yi#i*4W##11# �
� CROSS SECTION OUTPUT Profile #500 year
14t#k*rtkkiiffFhMi*YhAFtY1*rtfMt1M+#}ii4{1##i##iiii4i#�4i#itM#A£Y!#}t4i###ik##iF4i#*#+f*k+4ii#i#Y
Page 21
STVRAIN.rep �
• E.G. Elev (ft) * 4823.�7 * Elemen[ + Left OB w Channel * Aight OB *
- * Vel Head (fU * 0.14 " Wt. n-Val. * 0.070 * 0.040 * «
• W.S. Elev (fU ' 4823.63 * Reach Len. (ft) ' 740.00 + 140.00 * 140.00 *
� Crit w.S. (ft) + 4821.19 * Flow Area (sq R 1 * 39.32 " 5005.69 * �
* E.G. Slope (f[/fU *0.0009B0 * Area (sq £[1 * 39.32 • 5005.69 * �
* Q To[al (cfs) �14902.78 * Flow (cfs) � 31.33 *14871.46 " •
` Top Width (ftl * 1254.86 * Top Width (fU � 29.86 * 1225.00 * i
* Vel Total (ft/s) * 2.95 " Avg. Vel. (ft/s) * 0.80 * 2.97 * *
* Max Chl Dpth (ft) + 4.13 * Hydr. Depth (ft) • 1.32 • 4.09 * •
* Conv. Total (cfs) `475941.9 ' Conv. (cfs) � 3000.4 '4�494L 5 ' •
� Leng[h W[d. �ft1 * 140.00 + Wetted Per. (fU * 29.97 • 1226.32 � �
* Min Ch E1 (Et) + 4819.50 * Shear (lb/sq ft) * 0.08 * 0.25 * *
* Alpha * 1.01 * Stream PoweL (lb/ft s) ' 0.06 • 0.74 ' +
* FYctn LOSS (ft) ' * Cum VOlume (acre-ft) * D.1B * 30.89 * 3.39 *
* C & E Loss (£t) * * Cum SA (acres) ' 0.05 � 3.�7 * 3
+.+.....:.xwx+.:.,«..+.:....+.a.a�x.�ri�si�..:.:.::x�*..._..+.«��a+::+�:.x+.R�xr.t+F.+.:::.k.+�
CROSS SECTION OUTPUT Profile #10 year
:++,...�.:�+.xa�x+:,..4.��i::+:..:�.wRw+.rt*��.+r.a.t.:::,...:+,:�„+xaKax»�+it.:�trx,+..«+ts.�
* E.G. Elev (ft) + 4819.59 • Element * Left OB * Channel * Hight OH '
t Vel ftead (Et) * 0.00 R Wt. n-Val. + * 0.040 • �
* W.S. Elev (ft1 • 4819.59 * Reach Len. (ft) * 140.00 * 140.0� i 140.00 *
* Crit W.S. (ft) * 4819.52 ^ Flow Area (sq ft) • + 107.79 * •
' E.G. Slope (ft/fU i0.000001 * Area (sq ft� E * 107.�9 ' *
' Q TOtal (Cfs) + 1.00 R Flow (C£5) • * 1.00 * *
* Top width (ft) • 1169.55 * Top width (fU * + 1169.55 * +
� Vel Total (ft/s) • 0.01 • Avg. Vel. (ft/s) • • 0.01 • +
� Max Chl Dpth (ft) t 0.09 * Hydr. Depth (ft) + * 0.09 w *
' Conv. Tota1 (cfs) * 617.0 • Conv. (cfs) * � 817.0 • *
' Lengih Wtd. (fU * 140.00 • Wetted Per. (fU * ' 1169.56 * •
� Min Ch E1 (ft) t 4819.50 + Shear Qb/sq ft) + - • 0.00 ^ *
* Alpha � ..00 * SCream Power (lb/ft s) • + 0.00 * *
• Frctn Loss (ft) * * Cum Volume (acre-ft) * 0.03 " 12.44 * 0.58 *
• C & E Loss (ftl * * Cum SA (acres) R * 3.50 * •
....:....+:...+++,.:........::+...:...:x�:......».xx+.+....:....«.x+....+..r.:.+.+...+.::...x..
� kR05S;3E*TwON;OUTPU+teP*oYile{p*0'yeax
F + +���:x.x.ti.+:..x:...xx�..�:.ia.�+:.t..�:wrw�.�.ti�«i++xi::
� + E.G. Elev (ft) i 4819.95 * Element ' Left OB • Channel * Right OB �
* Ve1 Head (f[) + 0.00 • Wt. n-Val. • • 0.04� * *
• W.S. Elev fftl ' 4819.95 * Reach Len. (ft) � 140.00 * 140.00 * 140.00 *
- * Crit W.S. (fU ' a819.52 * Flow Area (sq ft) * * 533.09 * *
* E.G. Slope (ft/fC) *0.000000 ' Area (sq ft) • � 533.09 * *
* Q TOGal (cfs) * 1.21 * Flow (cfs) i • 1.21 * #
* Tap Width (fU • 1181.32 * Top Width (fU * • 1181.32 * *
* Vel Total (ft/s) � 0.00 * Avg. Vel. (ft/s) * * 0.00 * *
* Max Chl Dpth (fU + o.n5 * Hydr. Depth Ift) * * 0.45 + *
' Conv. Total (cfs) � 11650.4 f Conv. (cfs) + • 11650.4 * *
• Length Wtd. (f[I * 140.00 * Wetted Per. (ft) ' * 1181.37 * *
* Min Ch E1 (ft) * 4819.50 ` Shear (lb/sq ft) + * 0.00 * *
' Alpha t 1.00 * Stream Power (lb/ft s) ' R 0.00 * *
+ Frctn Loss (ft) • * Cum Volume (acte-ft) ' 0.04 * 16.11 * 1.25 *
+ c � e Loss (fU + + Cnm �SA (acres) + ^ 3.57 • +
*it#f�i#}ftlk4hn44fti}+4�1F#+µl�In#thii###xliiif#ifllYiii##44i#k*##Wf�A#I!#*llAfxiR!#fxli#%#1ti
INLINE STRUCTURE
RIVER: St. Vzain River .
REACH: EXISTING LAKES RS: 65125
INPUT
Descriptio�:
Distance from Upstream XS = 65
Oeck/Roadway Width = 25
Weir Coefficient = 2.63
Weir Embankment Coordinates num = 10
Sta Elev S[a Elev Sta Elev Sta Elev Sta Elev
+:.++...+...................:::.:.....�+:+..+...,x..«......,.....:�........x+...
846 4829 948 4824 1061 4820 1107 4820 1200 4819.5
1326 4820.2 1408 4820.7 1564 4820.� 1�65 4821 2200 4821.8
4�� Upsiream Embankmen[ side slope = 3.3 horiz. to 1.0 vertical
.i �ownstream Embankment side slope = 2.9 horiz. to 1.0 vertical
Page 22
STVRAIN.rep
� Maximum allowable submergence for weir flow = .95
. Elevation at which weir flow begins =
weir crest shape - Hroad Crested
INLINE STRUCTURE OUTPUT Profile #100 yeaY Inl Struct:
..::..,,+..+::..,+..::,..:+....,.,.:....x>............:,:.:.....:.+.:...+
* E.G. Elev �fU � 4820.�6 * Q Gates (cfs) * *
+ w.5. Elev (ft) � 4820 JS • Q Ga[e Group (cfs) * 4819.5� •
* Q Total (cfs) * 673.17 * Gate Open Ht (fU • 1.00 x
* Q weir (cfs) + 673.17 * Gate pOpen * �
* Weir Flow Area (sq ft) * 286.40 • Gate Area (sq ft) + «
* Weir Sta Lf[ (ft) + 1039.59 * Gate Submerg * •
i Weir Sta Rgt (fU * 1602.63 ' Gate Invert (ft) • «
* Weir Max Depth (ft) • 1.26 * * *
* Weir Avg Depth (ft) * 0.51 ' • +
• Weir Submerg R 0.�5 ' � *
• Min E1 Weir Flow (fU * 4619.51 � * �
* Wr Top wdth (fU * 563.04 * « *
.+.......x..+.......«.x....:...+...x...++....++.:a.�.+..+++++.x....x.+..«
INLINE STRUCTURE OUTPUT Pmfile N500 year Inl Stiuct:
i.wx�a.,+::r.+«x�x ..ii��;�.:..+«.ww..w+<+�x+t�+�i:.a.wxxax�:+:��:wxxx
* E.G. Elev (ft) * 4823 J7 * Q Gates (cfs) * �
' W.5. Elev (£t) * 4823.63 > Q Gate GYoup (cfs) • 0.00 *
' Q Total (C£s) '14902.78 • Gate Open Ht (fU * 0.00 �
* Q Weir (cfs) �14902.�6 * Gate qOpen * 0 •
* Weir Flow Azea (sq ft) " 3555.98 * �ate Area (sq ft) * 4833.11 *
* Weir 5[a Lft (ft) + 954.47 t Gate Submerg • *
� weir Sta Rgt (ft) • 2173.00 * Gate Invert (ft) * +
� Weir Max Depth (ft) � 4.2� • * *
WeiY P.vg n�p�h (ftl * �.92 • + .
' Weir Submerg • 0.90 � * * +
' Min E1 Weir Flow (ft) * 4819.51 • � �
* Wr Top Wdth (ft) * 1218.53 • * w
..::..a,,..++:,..+...++:.:.x.++.....+.....s..�.xa.+..s...x..+:...:x.+..+x
/ INLINE STRUCTURE OUTPUT Profile q10 year Inl Struct:
.+..+.::+.:.....»....+.«++...+.:..:::+...xx.:...+.++++..t:.+...+t..+.w..:
• E.G. Elev (ft) + 4819.59 t Q Gates (cfs) ` �
* W.S. Elev (ft) ' 4819.59 * Q Gate Gxoup (cfs) * 0.00 *
* Q Total Icfs) � 1.00 + Gate Open Ht (ft) i 0.00 •
* Q Weir (cfs) � 1.00 * Gate #Open � 0 *
> Weir Flow Area (sq £t) * 1.56 * Gate Area Isq ft) * 4841.22 •
• Weir Sta Lft (ft) * 1182.84 * Gate Submerg * •
# WeiY Sta Rgt (fL) ` 1216.61 � Gate InveLt (fU * +
* Weir Max Depth (ft) * 0.09 * * *
* weir Avg Depth (ft) ' 0.05 ' * �
� Weir Submerg t p.aa F . +
* Min E1 Weir Flow (ftl * 4819.51 * * •
* wr Top Wdth (ftl ' 33.77 * • *
x.x:.::.wx.�...x.:w.�...::::::xx�.i*i�ri�s�s�xxwxwrx�rr<:�::+:rriit+x+��+
INLINE STRUCTURE OUTPUT Profile #50 yeaY Inl StruCt:
:::r..i:xx:xrw+x�::w.�:r+��.:x:xa+x«+tt+�+s+itx::xH.»��+++�+.::w:..xr�r�>
- • E.G. Elev (ft) + 4819.95 * Q Gates (cfs) + >
* W.5. Elev (ft) * 4819.95 ' Q Gate GToup (cfs) • 0.00 *
* Q Total (cfs) t 1.21 * Gate Open Ht (ft� * 0.00 *
* Q Weir (cfs) * 7.21 * Gate kOpen * 0 •
a Weir Flow Area (5q ft) � 3�.�3 ' Gate Azea (sq ft) * 9820.55 � �
* Weis Sta Lft (fU + 1115.54 • Gate Submerg * R
* weir S[a Rgt (ft) * 1281.72 * Gate Invert (ft) * *
� Weir Max Depth (fU * 0.45 * + +
' Weir Avg Depth (ft) � 0.23 + * .
* Weir Submerg • p.98 * + .
* Min E1 Weir Flow (fC) • 4819.51 * * *
* Wr Top Wdth (ft) + 166.18 * + •
xw.+.a�w...+.at......++..x..w..«...+,x..x..n...+...k.x....tt+...x::x::w+.
CROSS SECTION �
RIVEA: St. Vrain Rivet
' REACH: EXISTING LAKES RS: 65050
eage 23
STVRAIN.rep
INPUT
Description:
Station Elevation �a[a num= 8
Sta Elev 5[a Elev Sta Elev Sta Elev Sta Elev
xr.+.+a.+.,.:,.::.::::.....,....+«a......+:..+...:...:+...=.:..x+...+....«..x...
B2B 4830 1080 4819 1200 4812 1326 4812 1408 4812
1564 4812 1765 4812 2097 4812
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
.......:......,....+.......+.:xx............+...
828 .07 82B .04 2097 .07
Hank Sta: LeEC Right Lengths: Left Channel Right Coeff Contr. Expan.
828 209'/ 0 0 0 .3 .5
CROSS SECTION OUTPUT Profile }{100 year
♦:r.::wwwxxr�s�:::,.:.xt:.::::.:.r..x.+�.:.x.`�...x�...+�+t+�:w������+n::�F:.:....:....:x....�.kw
* E.G. Elev (f[) w 4820.56 * Elemen[ * Left OH ' Channel � Right OB *
+ Vel Nead (ft) * 0.00 * Wt. n-Val. * + 0.040 * •
' W.S. Elev (ft) w 4820.56 + Reach Len. (fU " 30.00 * 30.00 ' 30.00 *
• Crit W.S. (fU * * Flow Area (sq ft) * * 8313.46 '" �
' E.G. Slope (£t/ft) �0.000000 * Area (sq ft) ' • 8313.46 * •
* Q Total (cfs) * 673.11 + Flow (cfs) � * 6']3.17 • * ,
* Top Width (ft) * 1052.74 * Top Width (ft) f * 1052."14 * *
+ vel To[al (ft/s) ' 0.08 * Avg. vel. (f[/s) * * 0.08 ' *
� Max Chl Dpth (fU • 8.56 • Hydr. �epth (ft) � * �.90 • •
'� Conv. Total (cfsl '7217908.0 * Conv. (cfs) " *1217908.0 * •
k Length Wtd. (fU * 30.00 * Wetted Per. (ft) + � * 1061.54 + *
* Min Ch E1 (ft) * 4812.00 * Sheaz (lb/sq fU * ' 0.00 � •
• Alpha + 1.00 * Stream Power (lb/ft s) * * 0.00 * �
* Frctn Loss (fU * 0.00 * Cum Volume (acre-ft) * 0.05 * 3.16 • 1.59 *
* C s E Loss (f[) * O.11 * Cum SA (acres) * * * "
.+..+.....:..:+...«...a+.+..::..+«::..:..:::+.:x«.........:...+.:a:::...::...:::.....:::x.x...x
Warning: The cross-section end points had to 6e ex[ended vertically for [he computed water snrface.
i
CROSS SECTION OUTPUT Plofile #500 yeaY
xwxxw.xR+r�.�xx.r:..w::..:.::.sxx+:.:.�:.:.:x:.:...:.x::::::::.+t:w.:..::++:�a:.::::::::.::..i::.
� * E.G. Elev (fU * 4823.51 * Element ' Left OB * Channel � Right OH *
* Vel Nead (ft) � 0.03 * Wt. n-Val. * * 0.040 * *
* W.S. Elev (ft) � 4823.49 * Reach Len. (ft) • 30.00 • 30.00 * 30.00 *
* CYit W.S. (ft) * * FlOw Alea (5q fU ' *11492.14 ' *
" E.G. 51ope (ft/ft) *0.000055 ' Alea (5q £[) • *11492.14 * +
* Q Total (cfs) *14902 JB ' Flow (cfs) * �'14902."/8 • �
* Top widih (fU ' 1179.78 * Top width (ft) '� * 1119.78 • *
a Vel Total (ft/s) * 1.30 * Avg. Vel. (ft/s) * * 1.30 * *
* Max Chl Dp[h (ft) * 11.49 ' Hydr. Depth (Et) * * 10.26 * *
* Conv. Total (cfs) '2002090.0 * Conv. (cfs) ^ '�2002090.0 * •
* Length Wtd. (EC) * 30.00 * Wetted Per. (fU • ' 1131.57 • *
• Min Ch E1 (ft) + 4812.00 * Shear Ilb/�q fU ' ' 0.04 ' *
* Alpha * 1.00 • S[ream Power Qb/ft s) * * o.o5 * *
* Frctn Loss (f[) * 0.01 • Cum Volume (acre-ft) ' 0.11 * 4.38 * 3.39 •
* C & E Loss (fU � * 0.11 * Cum SA (acres) * * • *
•�rrrx��rr�r�rirx�+.xxw+.:k��++::+:+�i��ra+xx:++��r:��x:xi��+xrrr�x�x�xxr:�r:xx�xxr�wa�xx+::x:�+�•
Warning: The cross-secGion end points had to be extended vertically for the compu[ed water surface.
CROSS SECTION OOTPUT Profile #10 year
•.+.x�:.x:::a........++.+....+«+....a...+...:.+...+::«.+.+....++..w....x...x..+.:a.:.:.::+...++
* E.G. Elev (fU ' 4818.48 � Element * Left OB F Channel • Right OH *
� Vel Head (ft) * 0.00 * Wt. n-Val. * * 0.040 * *
* W.S. Elev (fU * a818.48 " Reach Len. (ft) • 30.00 * 30.00 " 30.00 *
* Crit W.S. (ft) * * Flow Area (sq ft) * * 6174.92 � *
t E.G. Slope (Et/f[) *0.000000 x Area (sq ft) * ' 6174.92 * *
* Q Total (cfs) ` 1.00 * Flow (Cfs) • • 1.00 ' '
* Top width (ft) R 1008.13 * Top Width (ft) • • 1008.13 * *
R Vel Total (Et/s1 " 0.00 * Avg. Vel. (ft/s) ' * 0.00 * *
* Max Chl Dpth (ftl * 6.48 * Hydr. Depth (fU " * 6.13 * '
� Conv. Total (cfs) *764540.9 a Conv. (cfs) * ^764540.9 ' *
� Length Wtd. (fU * 30.00 * Wetted Per. (ft) * � 1014.80 * *
i Min Ch E1 IfU * 4812.00 R Shear Qh/sq Et) • • 0.00 * *
� * Alpha * 1.00 • Stream Power Qb/ft s) * * 0.00 � •
Page 24
STVRAIN.rep
` Frctn Loss Iftl * 0.00 * Cum Volume (acre-ftl * 0.03 ' 2.34 * 0.58 *
, * C & E Loss Ift) = 0.09 '� Cum SA (acres) * " * '
,:.....+.+.:..:.,.+.......x...+....+.x..«....x.«:..:...,...:..+x+.+....+.«..«x++.:x..,.«-...++...
Warning: The cross-section end points had to be extended vertically for the computed water surface.
CROSS SECTION OUTPUT Profile p50 year
:+.,:a...::.::......,..:+:t.:..a...R�.x+....xx:::.:.:.:.:::.:.x.F++k+ii�i:.�,a.r:*:...x+�x«r�Rii
* E.G. Elev (fU • 4819.95 * Element • Left OH * Channel • Right OB *
� Vel Head (ft) * 0.00 * Wt. n-Val. ' * 0.040 * *
* W.S. Elev (fU ^ 4819.95 * Reach Len. (ft) * 30.00 ' 30.00 ` 30.00 '
' Crit W.S. (f[) * * Flow Area (sq ft) * * 7674.1"1 • *
' E.G. Slope (ft/fU "0.000000 • Area (sq ft) " ' "]674.1'J ' *
i Q Total (cfs) * 1.21 * Flow (cfsl ' ' 1.21 ' '
* Top Width (ft) 1038."13 • Top Width Ift1 * • 1038.73 � •
� Vel Total (Et/s) * 0.00 * Avg. Vel. (ft/s) * * 0.00 ' '
* MaX Chl Dpth (fU * '7.95 " HydY. ❑epth (ft) ' ' 7.39 * '
' Conv. Total (cfs) '1075759.0 ' Conv. (cfs) * *1075759.0 • `
• Length Wtd. (ft) ' 30.00 " Wetted Per. (ft) * ' 1046.91 * "
* Min Ch E1 (ft) * 4812.00 * Shear (lb/sq ft) " • 0.00 ^ +
* Alpha � 1.00 * Stream Powez (lb/ft s) * • 0.00 ^ *
* Frc[n Loss (ft) * 0.00 " Cum Volume (acre-fU * 0.04 * 2.92 * 1.25 '
* C & E Loss (ft) E 0.10 * Cum SA (acres) * * * '
+A*i*f+*kh*ifl+f+itttff�ttf�tttftif+#ia#Y#*ih'kXYn'Rf'Rh1YM'.l1:RTRf+4FA*kt#f#Ifl+F114f14ixk#*it4ilfi
warning: The cioss-section end points had to be extended vertically for the mmputed water surface.
CROSS SECTION � �
RIVER: St. Vrain River
REACY: L25 to Junctica ..... 71"0
INP[1T
Description: This cross-section is the downstream edge of the L25 frontage
road. The hlocked obstruction on the left overbank is because flow
cannot physically get to this area during the 100-year storm. The
flow will not overtop I-25 and the bank between I-25 and the
frontage road is at an elevation oE 4836. Duzing the 500-year
event, shallow ponding will be present at this low point in the
road, however, it will be ineffective flow because the flow will
nOt overtop I-25.
Station Elevation Data num= 25
Sta Elev 5[a Elev Sta Elev Sta 61ev Sta Elev
::::::.:+:::.:t+:..a+.Exxx.�.`..*.x+..::.::.::�+.:..::.::�:+::���..+;x�ri+�w3;�+�
-400 4852 -200 4842 0 4835 198 4832 325 4830
493 4830 843 4836 927 4837 1000 4832 1013 482�
1026 4826 105"1 4824 1065 4822 1145 4822 1163 4826
7248 4827 1261 4828 1277 4831 1305 4834.65 1909 4831.55
2561 4832.65 3217 4833.15 3fi84 4841.05 3�05 4841.05 3901 4843.05
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val '
..:.+a..:.+.+.+.x.....:a:.:::..:::<+..w+....++.x
-400 .07 1000 .04 127'J .07
Bank Sta: Left Right Lengths: Le£t Channel Aight Coe££ Contr. E�cpan.
1000 127'1 5 5 5 .3 .5
Ine£fective Flow num= 2
Sta L Sta R Elev Permanent
-400 843 4843 F
1305 3901 4843 F
Blocked Obstructions num= 1
Sta L Sta R Elev
..r+i+.t«a+a«ii«:+a+.k«,
-400 927 4836
CROSS SECTION OUTPUT Profile #100 year
ft1:RiX#F44#kil4�.1*;�.1hA'RF#4MMMi#iMkAR'.l1:fMf1�!'.l�.!'.lAfR#'R#Y1T'.lfe'.!1*f'.l1f1'.YF14*'RA1'.l1AA#11:i/:Mf'fi:hii#YYii##
* E.G. Elev (fU * 4833.96 * Element * Left OB * Channel * Right OB t
� Vel Head (ft) * 0.84 * Wt. n-Val. * 0.070 * 0.040 * 0.070 *
" W.S. Elev (fU ' 4833.11 + Aeach Len. (ft) * 5.00 * 5.00 * 5.00 *
* Crit W.S. (fU * 4829.63 * Flow Area (sq fU + 9.05 * 2261.38 * 17.13 •
� * E.G. Slope (ft/fU *0.002418 R Area (sq fU * 9.05 * 2261.38 " 1056.8� *
Page 25
STVRAIN.rep
* Q Total (cfs) •16700.00 * Flow (cfs) ' 6.38 +16675.17 � 18.45 *
� * Top Width (fU * 1874.04 � Top Width (ftl * 16.25 * 277.00 * 1580.78 *
• Vel Total (fC/s) * 7.30 * Avg. Vel. (ft/s) * 0.71 ' 7.37 * 1.08 *
* Max Chl Dpth (ft) * 11.11 " Hydr. Dep[h (ft) * 0.56 * 8.16 " 1.06 *
� Conv. Total (cfsl '339621.8 * Conv. (cfs) * 129.8 '339116.9 * 375.1 �
# Length wtd. (fU * 5.00 * We[[ed Per. (fU • 16.29 * 278.81 * 16.35 *
* Min Ch E1 (fU * 4822.00 * Shear (lb/sq ft) * 0.08 ' 1.22 • 0.16 *
� Alpha * 1.02 � S[ream Power (lb/ft s1 " 0.06 * 9.03 � 0.17 •
* Frctn Loss (ft) � 0.01 • Cum volume (acre-fU ' 29.42 * 179.01 • 648.79 *
* C & E Loss (ft) * 0.06 * Cum SA (acres) * 6.99 * 17.34 * 181.49 '
...::....:.x+.x++..::.:www�r...x..x.«..�....::.:....::..:..::..r:x+r.+ri..xxx..+.++.:..w:Rx:aR�
Warning: Oivided flow computed for [his cross-sec[ion.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile �500 year
.:.it::�«�.:::+r.,x�xWx�R�ta+t�ii.�+tx�i�:i��FkiwK.w++r.wwK+:.:...=t.+r:=.:..�.3::..:3::::��.�:
* E.G. Elev (fU * 4842.31 " Element * Left OB * Channel * Right OH *
• Vel Head (fU * 1.09 ' W[. n-Val. * 0.070 ' 0.040 * 0.070 *
* W.S. Elev (ft) * 4841.22 ' Reach Len. (ftl * 5.00 * 5.00 * 5.00 *
* Crit W.S. (ft) * 4834.03 * Flow Area (sq ft) * BB6.69 * 4506.32 * 235.00 •
* e.G. slope (ft/ft) •0.001331 • Area (sq ft) * 5823.28 ^ 4506.32 *18467.61 *
* Q Total (Cfs) *41960.00 ' Fiow (Cfs) ' 2175.88 *39036.80 * 747.32 *
• Top Width (fU • 3899.11 * Top Width (ft) * 1177.65 * 27�.00 * 2444.46 *
• Vel Total (ft/s) * �.46 * Avg. Vel. (ft/s) ' 2.45 � 8.66 * 3.18 *
* Max Chl Dp[h (ft) • 19.22 ' Hydr. Depth Ift) * 5.65 * 16.27 * 8.39 *
* Conv. Total (cfs) 'll50250.0 • Conv. (cfs) ' 59647.4 '1070117.0 * 20486�.3 *
* Length Wtd. (fU * 5.00 * We[ted Per. (ft) • 157.18 * 2�8.81 * 28.24 •
* Min Ch E1 (ft) * 4822.00 " Shear (lb/sq ft) * 0.47 * 1.34 * 0.69 '
* Alpha i 1.26 ' S[ream Power (lb/ft sl * 1.15 * 11.63 * 2.20 •
* Frcin Loss (f[) ' 0.01 ' Cum Volume (acre-ft) • 56.36 * 230.28 * 1210.02 *
* C & E Loss (ft) * 0.13 i Cum SA (acres) � 8.56 • 17.40 * 198.96 *
A#A#xix}ifRtfxiM#W1FYA1114i##4i+#iMYi144�R£tffttxi#S44#f#iY1ktY�xfAf1i1x4i1�1A�+4i1;Y4YY4ili#i#
� Note: Multiple critical depths were found at this locatio�. The critical depth wi[h the lowest,
i valid,
water surface was used.
CROSS SECTION OUTPUT P[ofile #10 year
�+.:a,r+:tx�...+w��xxx+.t;w+��atta�:+�+rax�k�w+rw+*.*++:+wx�r���xrxxr�+.�R:�+w+�«i+.�++�«at�:t�
* E.G. Elev (ft) ' 4829.07 � Element " Left OH " Channel * Right OB *
* vel Head (ft) * 0.52 • W[. n-val. * R 0.040 * *
' W.S. Elev (ft) • 4828.55 ' Reach Len. (ft) ` 5.00 * 5.00 * 5.00 �
* Crit W.S. (fU * 4826.9� * Flow Area (sq ft) ' * 1020_16 * '
" E.G. Slope (ft/ft) *0.003799 * Area (sq ft) * * 1028.16 * +
* Q Total (cfs) * 5950.00 ' Flow Icfs) ' ^ 5950.00 * *
* Top Width (fU ' 254.94 * Top Width (ft) * # 254.94 f •
* Vel To[al (ft/s) * 5.79 * Avg. vel. (ft/s) ' * 5 J9 * *
* Max Chl Dpth (ft) * 6.55 • Hydr. Depth (ftl * * 4.03 * *
' Conv. Total (cfs) * %531.8 * Conv. (cfs) ' ' 96531.8 * *
* Length Wtd. (ft) * 5.00 ' Wetted Per. (ft) ' * 255.89 * *
* Min Ch E1 (ft) � 4822.00 * Shear (lb/sq ft) * * 0.95 * *
; Alpha * 1.00 * Stieam Power (lb/ft s) * * 5.52 * *
* Frctn Loss (ft) * 0.02 * Cum Volume (acle-fU * 13.40 • 129.41 * 166.22 •
' C � E Loss (ft) * 0.06 ' Cum SA (acres) ' 3.62 ' 17.07 * 126.41 *
t4ifih4#�fi1*#i#ih*iiYR1+4i�*Rhk�A£4Ftttil4kR!*#+Tsi14#w1+XrtIxIkR4ili*t##{#i#hiiFlsfflff!*4i₹!Yi
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OOTPUT Profile #50 year
xw...x.x,x:..:..+.x...«.+..a.x..aw..+.,:.:.+.a.....:.......:.:xx�..x+•.>......+...x....«a.+...+
* E.G. Elev (fU * 4832.32 { Element * Left OB * Channel * Right OH *
* Vel Head (fU * 0.77 • wt. n-Val. * * 0.o4o * 0.070 "
* W.S. Elev (ft) * 4B31.56 • Reach Len. (fU * 5.00 ' 5.00 * 5.00 *
* Crit W.S. (fU ' 4828.83 * Flow Area (sq ft) * " 1830.18 * 1.18 i
• E.G. Slope (ft/fU *0.002889 R Area (Sq fU * * 1830.18 * 1.2� '
* Q Total (cfs) *12850.00 * Flow (cfs) ' *12849.43 * 0.57 "
* Top width (ft) • 284.72 * Top width (ft) * * 275.84 ' 8.88 *
• Vel To[al (ft/s) • 7.02 * Avg. Vel. (ft/s) * * 7.02 ^ 0.48 '
i� • Max Chl Dpih (f[) • 9.56 • Hydr. Oepth (ft) * " fi.63 � 0.28 *
Page 26
STVRAIN.rep
• Conv. Total (cfs) *239068.7 * Conv. (cfs) " *239058.0 * 10.6 *
' * Leng[h Wid. (ft) 3 5.00 * Wetted Per. (ft) * � 277.57 * 4.30 *
* Min Ch E1 (ft) * 4822.00 ' Shear (lb/sq ft) * • 1.19 • o.o5 '
* Alpha � 1.00 � Stream Power (lb/ft s) • � 8.35 " 0.02 *
t Frctn Loss (ftl * O.Oz * Cum Volume (acre-ft) * 24.08 * 165.6� * 511.46 '
* C & E Loss (ft) • 0.06 * Cum SA (acres) * 5.92 ' 17.30 * 174.12 *
+,�..»....�..+:,�.:.:«..F..ir....:�.+k.++.....:,�r:.i«.+.xxw+x�«r�x.��..�.x.���+r�.x.+xx»..w.+:�:
Warning: Divided Elow compu[ed for this cross-section.
Note: Multiple critical depihs were found at this location. The cri[ical depth with the lowest,
valid,
water surface was used.
CRO55 SECTION
RIVER: St. Vrain River
REACH: I- 25 to Junction RS: "11765
INPllT
�escription: Ineffective £low exists in [he left overbank of this cross-section
because of the elevation of I-25. The blocked obstrnction on the
left overbank is because flow cannot physically get to this area
during the 100-year storm. The flow will not overtop I-25 and the
6ank between I-25 and the frontage road is at an elevation of
4836. Dnring the 500-year event, shallow ponding will be present
at [his low point i� the zoad, however, it will be ineffective
flow because the flow will not overtop I-25.
Station Elevation Data num= 41
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.w�<:+«:t:.:::.:..::::.i::::t+t:..{.�F+++.+k.:r+*++,+i+x�+�.:+e:::�tisti�:+:x�++
590 4849 615 484'].5 555 4846 740 4843 815 4840
1000 4835 1118 4832 1292 4832 1949 4834 1596 4836
1"]00 483"1 184"/ 4840 1877 4840 1905 4841 1976 -0825
20"]2 4824.25 2115 4822.7 2159 4822."1 2182 4828.05 2326 4828.55
2471 4828.55 2648 4828.65 2782 4826.05 2800 4828.05 2934 4827.75
2954 4824.85 2974 4824.95 2992 4828.25 3125 4830.15 3199 4830.15
'� 3356 4830.25 3489 4830.55 3617 4829.85 3777 4830.85 3786 4826.55
3802 4826.55 3827 4831.15 3965 4831.95 4ll6 4833.05 4312 4834.55
4312.1 4834.55
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
:.x.x:..:x.x.xx:::+�.....::..+....+..+..x.«.+...
590 .0"] 19"16 .04 2182 .07
Hank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
1976 2182 30 30 30 .3 .5
Ineffective Flow num= 2
Sta L S[a R Elev Permanent
590 1905 4843 F
2245 4312.1 4843 F
Blocked Obs[ruc[ions num= 1
Sta L Sta R Elev
�+�:.:t:....::...�«::.++
590 1700 4836
CROSS SECTION OUTPUT Profile #700 year
4#i##44ii#44fi4t+fik[tF1##*ih+#44t#1+144h44i#4i41irt+i*++hfl:itl:1:%1:wYf�.11RffRIYMAfthf%+R4�.l1�.lY1#MSf
• E.G. Elev (ft) * 4833.88 * Element * Left OB � Channel * Right OB +
• Ve1 Head (ft) * 1.05 x Wt. n-Val. • 0.070 ' 0.040 • 0.070 *
"' W.S. Elev (ft) • 4832.84 * Reach Len. (£t) " 30.00 * 30.00 * 30.00 '
* Crit W.S. (ft) • 4830.05 + Flow Area (sq ft) * 136.27 * 1808.54 * 294.70 *
* E.G. S1ope (ft/ft) *0.0o2904 � Area (sq fU * 136.27 * 1808.54 * 6400.24 *
* Q Tota1 (cfs) `16700.00 * Flow (cfs) '" 381.11 *15375.98 * 942.91 *
* Top Width (fU * 2145.54 r Top Width (ft) " 34.78 * 206.00 * 1904.77 *
+ Vel Total (f[/s) F 7.46 • Avg. VeL (ft/s) * 2.80 i 8.50 * 3.20 *
* Max Chl Dpih (ftl * 10.14 * Hydr. Oepth (ft) * 3.92 � 8.78 * 4.68 •
* Conv. To[al (cfsl *309889.3 t Conv. (cfs) * 7071.9 �285320.5 � 17496.9 *
* Length Wtd. (ft) • 30.00 * Wetted Per. (ft) * 35.65 * 206.64 3 63.00 •
* Min Ch E1 (fU * 4822.70 R Shear Qb/sq ft) ` 0.69 * 1.59 * 0.85 *
+ Alpha * 1.21 * Stream Power (lb/ft s) * 1.94 k 13.49 * 2.71 •
� * Frctn Loss (ftl + 0.09 * Cum Volume (acre-ft) * 29.41 � 178.78 • 648.37 *
� * C & E Loss (ft) ' 0.01 * Cum SA (acres) * 6.98 * 17.31 * 181.29 *
Page 27
STVRAIN.rep
,:.,:.:r+�+:::.....::x+:.R.ixx�x.+�+a�w+�.+�+F+t�+*+�+w.rr�+�..w:x:a.a��wix:t.+�:+.a.t:x�r+w:�+
Note: Multiple ¢itical depths were found at Chis location. The critical depth with [he lowes[,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile p500 year
«k....+:.....xx.t...:.:...:::.,�xr:r:«.+�r��:t+t.�.�r+::�.:tt*..:x:�Rwxxw+r.x�i�«wwiit.+��i�r.�t�+i
' E.G. Elev (ft) 3 4642.17 � Element k Left OB t Channel � Right OB k
* Vel Head (fU ' 1.54 * Wt. n-Val. * 0.0�0 * 0.040 * 0.070 `
' w.5. Elev (ft) * 4B40.63 * Reach Len. (fU ' 30.00 * 30.00 ' 30.00 '
* Crit W.S (£U * 4834.4a * Flow Area (sq fU * 542.13 * 3414.20 * 785.75 '
* E.G. Slope (ft/ft) '0.007922 * Area (sq ft) * 4635.68 ' 3414.20 "22811.16 *
i Q Total (cfs) •41960.00 R Flow (cfs) * 1954.56 i36072.51 • 3932.93 *
' Top width (ft! � 3500.93 * Top Width (ft) * 1164.83 " 206.00 • 2130.10 *
r Vel Total (ft/s) * 8.85 * Avg. Vel. (ft/s) * 3.61 ' 10.57 * 5.01 '
' Max Chl Dpth (fU * 1�.93 k Nydr. Depth (ft) • 7.02 * 16.57 * 12.47 *
• Conv. To[al (cfs) •95�029.1 * Conv. (cfs) * 44579.8 *822746.5 * 89702.8 +
* Leng[h Wtd. (f[) � 30.00 • Wetted Per. (ft) " "/1.10 * 206.64 * 63.00 *
* Min Ch E1 (ft) * 4822.70 • Shear (lb/sq ft) • 0.92 ' 1.98 * 1.50 *
* Alpha + 1.26 ` Stream Power (lb/ft s) * 3.30 � a0.95 * 7.49 R �
� Frctn Loss (tU • 0.06 < Cum Volume (acre-ft) • 55.76 • 229.82 • 1207.65 *
* C & E Loss (ft) * 0.02 � Cum SA (acres) * 8.43 * 17.37 * 198.70 *
.+..+:.:,.:...x+..:....a......:.........:.:..aa+.......++.+...:..:......w........a.s..:.+:.....
Warning: Divided flow computed for this cross-section.
Warning: The cross-section end points had to be extended vertically for the computed water surface.
Note: Multiple critical depths were found aG this location. The critical depth with th= lowest,
valid,
water suxface was used. .
CROSS SECTIO.1 OUTPUT Profile #10 year
•+r�++,si.+::::::.:..:«x.:�..xx�.,Rr+,.�w.t:::tti.:.tax.t:�aF..:::..�aFFi+��t:++r:..awr:+.xy.+R+�+
* E.G. E1ev (fU * 4828.99 * Element ' Left OB * Channel * Right OB *
• Vel Head (ft) � 0.71 � Wt. n-Val. ' 0.0"!0 • 0.040 * 0.070 �
* w.S. Elev (ft) ' 4828.28 * Reach Len. (ft) + 30.00 * 30.00 * 30.00 *
y � Crit W.S. (fU * 4827.01 * Flow Area (sq ft) • 23.85 * 869.57 * 7.54 *
� * E.G. Slope (ft/fU '0.004908 � Area (sq ft) ' 23.85 • 869.57 * 246.51 *
• Q Total (cfs) * 5950.00 * Flow (cfs) * 48.R * 5898.97 * 2 J2 *
* Top Width (ft) * 578.67 * Top Width (fU ' 14.55 * 206.00 * 358.12 *
� * Vel Total (ft/s) ` 6.60 * Avg. Vel. (ft/s) * 2.03 • 6.98 * 0.36 *
� * Max Chl ➢p[h (fU * 5.58 F Hydi. �epth (ft) • 1.64 * 4.22 * 0.12 •
• Conv. Total (cfs) ' 84927.9 ` Conv. (cfs) ' 692.5 * 84196.6 * 38.8 •
• Length W[d. (ft) • 30.00 * Wetted Per. (ft) * 74.91 * 206.64 • 63.00 *
* Min Ch E1 (ft) ` 4822.70 ' Shear (lb/sq ft) " 0.49 * 1.29 • 0.04 R
• Alpha * 1.05 * Stream Power Qb/ft s) ' 1.00 • 8.75 • 0.01 �
* Fzctn Loss (ft) * 0.16 • Cum Volume (acre-£U * 13.40 * 129.30 ' 186.21 �
' C & E Loss (fU • 0.02 * Cum SA (acresl • 3.62 * 1"].04 � 126.39 *
ii1#1+#hi#+i4t14i++ffi+f4#tfkih#n#4ikR�.l51:}F44f4fitiiY4i+Ft1t4+1:ki1'kl1:RFtl4htiiF4##i%Y*#Yk4tY##if
Warning: Divided flow computed for this cross-section. -
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #50 year
41f�.FiYirt4#i1�!*Fth'k4#*f4Yhii4flFRiflk4+44f1if4:11f1fA'.ltt44#f4Yi412f11�.lf�.11Tf#ift#i###11MY4ihf11ff1
" E.G. Elev (fU * 4832.24 * Element " Left OB * Channel * Right OB +
> Vel Head (ft) • 0.98 * WC. n-Val. ' 0.070 * 0.040 ' 0.070 �
* W.S. Elev (ft) * 4831.26 ' Aeach Len. (ft) * 30.00 • 30.00 * 30.00 ^
* Crit W.S. (ft) ' 4829.15 * Flow Area (sq ft) • 8"/.01 * 1484.15 * 195.49 '
* E.G. Slope (ft/£t) R0.003476 • Aiea (sq ft) • 87.01 * 1484.15 * 3579.36 *
* Q Total (cfs) *12850.00 * Flow (cfs) * ��9.24 *72100.25 • 520.50 *
* Top Width (ft) � 1898.15 ' Tap Wid[h (EU • 27.79 * 206.00 * 1664.37 *
� Vel Total (f[/s) * 7.27 • Avg. Vel. (£t/s) * 2.63 * 8.15 * 2.66 *
* Max Chl �pth (fU * 8.56 * Hydr. Depth (ft) * 3.13 * 7.20 * 3.10 * �
' Conv. Total (cfs) *217950.6 * Conv. (cfs) * 3888.3 •205234.1 * 8828.3 *
* Length Wtd. (fU * 30.00 * Wetted Per. (ft) ' 28.49 * 206.64 • 63.00 *
t Min Ch E1 (ft) ' 4822.70 * Shear (lb/sq ft) ' 0.66 * 1.% ` 0.67 *
* Alpha • 1.19 * Stream Power (lb/ft s) * 1.75 * 12.71 * 1.79 *
* Frctn Loss (ft) * 0.11 * Cum Volume (acze-ft) • 24.07 t 165.48 ` 511.26 *
* C & E Loss (ft) • 0.07 * Cum SA (acres) ' 5.92 • 17.27 * 174.02 *
IM+h}#iikxf�lRfx#NftAYR'RiATftfYi+lYi'RMvl1ff14ftiifRk�.lAitilrl:t4!#i1M4'Il4itt4Yt4�+Yf�.!#'.l1:If�.!*1:#*F#♦
Page 28
STVRAIN.rep
'�� Note: Multiple critical depths were found at this location. The critical depth with the luwest,
� valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction RS: �1735
INP[JT
Description: This Cmss-section is the upstream edge of the rip-rap rundown.
Inefffictive flow exis[s in the left overbank of this cross-section ,
because of the elevation of I-25.
Station Elevation Data num= 31
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
•:tt+�r+:iae+.ts+�i�.�,e:+x+.+iitt:Ft+�ww�.rx..+xxrrxxx��+�++���rt�t�ar+awrwi+wxr+.
1866 4834 1991 4826.56 20�9 4826.48 2022 4022.34 2057 4822."J8
2089 4823.35 2134 4823.91 2170 4825.12 2211 4826.52 2326 4828.42
24�1 4828.42 2648 4828.52 2782 4827.92 2800 4829.92 2934 482Z 62
2954 4824.�2 2974 4824.�2 2992 4828.12 3125 4630.02 3149 4830.02
3356 4830.12 3489 4830.42 3617 4829.72 3777 4830.72 3786 4826.42
3802 4826.42 3827 4831.02 3965 4831.82 4116 4832.92 4312 483�4.42
4312.1 4839.42
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
..+.+x..::..:....:.xx:::..=.x.x.a:...++..:.x,....
1866 .0� 1991 .04 2211 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeft Contr. Expan.
1991 2211 67 6"1 67 .3 .5
Ineffective F1ow num= 2
Sta L Sta R Elev Permanent
1866 1897 4843 F
2211 4312.1 4843 F
Blocked 06structions num= 1
Sta L Sta R Elev
k;{*1866`***1820**462�+2
CROSS SECTION OUTPUT Pmfile #100 yeai
+��sa++taa�tt�Fsr++axw�xt+rta.y�wx:x+::««�trear�«Wexxrxxc�xxaxxwx:xrx:iat:���t��tx++++++<��r+a�
* E.G. Elev (fU * 4833.79 * Element " Left OB * Channel * Right OB *
* Vel Head (ft) * 1.0'/ • Wt. n-Val. " 0.070 • 0.040 * *
• W.S. Elev (ftJ * 4832.72 * ReaCh Len. (ft) " 67.00 • 67.00 ` 67.00 *
' Crit W.S. (fU ' 4829.92 * Flow Area (sq ft) * 315.92 * 1871.13 * *
* E.G. Slope (ft/fU '0.00301"I * Area (sq fU * 318.59 ` 18'J1.13 * 63"J0.30 *
• Q Total (Cfs) *16700.00 ' Flow (cfs) • 825.50 '15874.50 ' *
* Top Width (ft) • 2200.79 * TOp Width (ft) * 103.47 ' 220.00 * 18"]"/.32 *
* vel To[al (ft/s) * "7.64 * Avg. Vel. (ft/s) * 2.61 � 8.48 * *
* Max Chl Dpth (fU * 10.38 * Hydr. Depth (ft) * 3.36 '" B.51 * *
• Conv. Total �cfs) •304036.6 • Conv. (cfs) * 15028.9 *28900"/.7 • *
* Length Wtd. (ft) t 67.00 * Wetted Per. (ft) * 94.17 * 220.70 * +
* Min Ch E1 (ft) * 4822.34 * Sheaz Qb/sq ft) * 0.63 ' 1.60 * w
* Alpha ' 1.18 * Stream Power (lb/ft s� * 1.65 ` 13.55 ' `
* FZCtn Loss (ft) * 0.36 � Cum Volume (aCi'e-ft) * 29.25 ' 177.51 ' 643.97 �
* C & E Loss (ft) ' 0.63 * Cum SA (acres) * 6.94 ' 17.17 ' 1�9.99 *
i.�....rr+�+tw�.+��a.tFw.i+�i��;xrr,x��x++��:�:rrx:xaai�+�r���.xx+��rrri�x.�iiiirxia���xww�r.�iyt+
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
� Warning: The conveyance ratio (upstzeam conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
wa[er surface was used.
CROSS SECTION OOTPUT Plofile #S00 yeaL
k4kklf*4RFtF�.lTFY4k41tt'FYY41'hifYhl�.l114tFf1f4!##fiI#**fTfilf#1fF<vl�Fk#tl1RF1:AFIehl4FffRt'.lfvll�.ltf1#i
* E.G. Elev (ft) ' 4842.09 " Element * Left OH • Channel � Right OB *
+ Vel Head (ft) ' 1.49 " Wt. n-Val. * 0.070 * 0.040 R *
4� + W.S. Elev (fU R 4840.60 " Reach Len. (ft) * 67.00 ` 67.00 * 67.00 *
,i * Crit W.S. (ft) * 9834.47 R Flow Area (sq ft) * 1056.35 * 3604.06 � *
Page 29
. STVRAIN.rep �
• E.G. Slope (f[/fU •0.001855 * Area (sq ft) " 1289.41 ` 3604.06 *22731.08 *
� * Q Total (cfs) =41960.00 " Flow (cfs) R 4840.22 *37119.�8 * `
� Top Width (fU * 2446.10 i Top Width Ift) * 125.0o F 220.00 * 2101.10 *
+ Vel Total (ft/s) * 9.00 ` Avg. Vel. (ft/5) ' 4.SB ' 10.30 ' '
* Max Chl Dpth (fU ' 18.26 * Hydr. Depth (ft) ' 11.24 " 16.38 ' *
* Conv. Tota1 (cfs) '974134.3 " Conv. (cfs) t112369.4 •861764.9 ' *
t Length wtd. (f[1 * 67.00 " wetted Per. (fU ' 94.17 t 220.70 ' '
� Min Ch E1 (fU * 48a2.34 * Shear (lb/sq ft) R 1.30 * 1.89 � •
* Alpha • 1.19 * Stream Power (lb/ft s) ' 5.95 * 19.46 * *
* £TC[n Loss (ft) t 0.24 * Cum Volume (aCle-ft) • 53.72 * 227.41 * 1191.97 w
• C 6 E Loss (tt) ' 1.23 ' Cum SA (aczes) • 7.99 ' 17.22 ' 197.24 '
s�+�.+i.i�a..i:.:..:�*..rw.+r..+.+::.:aai�r«��.x�wwwx:x+..+:t:3::��tt:ii��.tatat.»i+.+.r+:++ts.
Warning: The cross-section end points had to be extended vertically for the mmputed water surface.
Warning: The veloci[y head has changed by more than 0.5 ft (0.15 m) . This may indica[e the need for
additional cross sections.
Warning: The mnveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.� or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT ProEile #10 year
.•.++x..+..x.xx»..x.+....x..kx�.+a+a.w•...xxx..:.::.+..s..xx...++.:++++....a..+.x.....xa.xx..xx
* E.G. Elev (ft) * 4628.81 * Element • Left OB * Channel � Right OB *
* Vel Head (fU ` 0 J6 * W[. n-Val. * 0.0�0 * 0.040 * *
• W.S. Elev (fU * 4828.04 * Reach Len. (ft) • 67.00 * 67.00 * 67.00 '
* Crit W.S. (ft) * 482�.08 * Flow Area (sq $) ' 18.47 * 842.57 * *
* E.G. Slope (ft/ft) *0.006006 * Area (sq ft) ' 18.47 * 842.5� * 279.70 •
� Q Total (cfs) * 595o.00 * Flow (cfsj * 24.8� * 5925.13 • 3
' Top Width (fU * 602.38 * Top Width (fU ' 24.91 * 220.00 ' 357.47 *
' Vel To[al (f[/s) * 6.91 • Avg. Vel. (ft/s) * 7.35 * 7.03 ^ *
* Max Chl Dp[h (ft) ' 5.70 " HydZ. Depth (ft) � 0.74 • 3.83 ' x
* Conv. Total (cfs) ' 76776.� ' Conv. (cfs) ' 320.9 * �6455.8 * '
" Length Wtd. (ft1 � 6�.00 ' Wetted Per. (ft) * 24.96 * 220.70 ' *
, -� * Min C,i E1 (ftl * 4822.34 * Sheaz (lb/sq ft) * 0.28 * 1.43 � •
" Alpha * 1.03 ' Stream Power (lb/ft s) � 0.37 * 10.0� ' � "
� * Frctn Loss (ft) * 0.98 * Cum Volume (acre-ft1 ' 13.39 * 128 J1 * 186_03 '
� � C 6 E Loss (ft) * 0.70 * Cum SA (acres) * 3.61 * 16.89 * 126.14 '
i4h+RFlFlftftttf₹Y+xit4iYii1Mlfk##11#+RxxRx4444i#*111xh!#Yi#4Y1RIififi#iY#41i#I#t}x!!*F#*4�!/4!
Warning: Oivided flow computed for this cross-section.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT PrOfile #50 year
���:�+3+++t.++i+x+t+�Fw..�wxx++���w�x+.++ttat�+++:�t+x+xrxx:+�++a��R�t�+��+it�t�rrix�rrr�rar�xx
* E.G. Elev (ft) * 4832-12 * Element ' Left OB * Channel • Right OH �
• Vel Head (£t) ' 1.02 * Wt. n-Val. • 0.070 ' 0.040 � *
• W.S. Elev (fU • 4831.10 * Reach Len. (ft) * 67.00 • 67.00 ' 67.00 3
* CTit W.S. (ft) * 4828.99 * Flow Area (sq ft) ' 1�2.86 * 1514.28 * *
* E.G. Slope (ft/fU '0.003764 * Area (sq fU * 172.86 * 1514.28 + 3514.97 *
` Q Total (cfs) '12850.00 * Flow (cfs) • 388.16 *12461.84 * '
* Top Width (ft) * 1925.36 * Top Width (ft) * 76.21 * 220.00 • 1629.14 *
* Vel Total (ft/s) • �.62 * Avg. Vel. (ft/sJ � 2.25 i 8.23 ' *
* Max Chl Dpth (fU ' 8.76 • Hydr. Depth (ft) * 2.27 * 6.88 � •
* Conv. Total (cfs) '209442.6 * Conv. (cfs) * 6326.6 *203116.0 • *
* Length wtd. (ft) * 67.00 * Wetted Per. (fU * �6.35 * 220.70 * *
* Min Ch E1 (ft) * 4822.34 * Shear (lb/sq ft) ` 0.53 ' 1.61 � *
* Alpha * 1.13 * Stream Power (lb/ft s) * 1.19 " 13.27 * •
* Frctn Loss (f[) * 0.41 * Cum Volume (acre-fU * 23.99 * 164.45 ' 508.81 *
• C & E Loss (fU * 0.41 * Cum SA (acres) 3 S.B9 R 17.13 * 172.89 *
4}+fiM#Yk#fif{tff4f4ti#hk1Yxl#4+YYt#i#11#₹ff#�4+�4i�t�*tf14kl#!#1YY1114Af**ki111kI*#4fif1f11fi#
Warning: The velocity head has changed by more than 0.5 ft (0.15 m1 . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
a.7 or greater than 1.4. This may indiwte the need for additional cross sections.
Note: Multiple cri[ical depths were found at this location. The critical dep[h with the lowest,
valid,
� water surface was used.
Page 30
STVRAIN.rep
CROSS SECTION
RNER: SC. VTain RiveY
REACH: I-25 to Ju�ction RS: 71"J01
INPUT
Description: Ineffective flow exists in the leEt overbank of this cross-section
because oE [he elevation of I-25.
Station Elevation DaCa num= 32
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.�.:.w.«.x.�:.:.�:x...�+.��a+:t..x«tr♦s.+�Fr.x�+.���:�.ti.�x�«�*w«�i�+ttwi+w�w.�
1897 4640 1994 4834.0'/ 19']5 4826.56 2002 4824.57 2026 4821.95
2091 4B22.39 2095 4823.26 2128 4623.18 2159 4824.29 2206 482"].88
2326 4828.49 24'/l 4828.49 2648 482B.59 2']82 4827.99 2800 4827.99
2934 4827.69 2954 4824.79 2974 4824.79 2992 4828.19 3125 4830.09
3149 4830.09 3356 4830.19 3489 4830.49 3617 4829.79 3777 4830.79
3"186 4826.49 3802 4826.49 3827 4831.09 3965 4831.89 4116 4832.99
4312 4834.49 4312.1 4834.49
Manning'5 n Values num= 3
S[a n Val Sta n Val Sta n Val
.::,...+:x+.«..+.+.:....x.=x....+....«...x>r:.:.
189] .0"J 19'JS .09 2206 .07
Baak Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
1975 2206 34 34 34 .3 .5
Ineffec[ive Flow num= 2
Sta L Sta R Elev Permanent
189"] 189"1 4843 F
2158 4312.1 4843 F
Blocked Obstruc[ions num= 1 �
Sta L Sta R Elev
.:3.xx«r.rxa...:::«xw.xt
189"/ 1877 4827.2
CROSS SECTION OUTPUT Profile #100 �rear
+.+..x.x��w.+.�a+:...+,xx.�x.+.r:.fri�x.�+arx�...x«+....er».+xw:��x�xwkxx.r�xrw.«,::+:a:....x+.x�xr+�
' E.G. Elev (fU * 4832.79 * Element * Left OB * Channel * Right OB *
* vel Head (Et) * 3.16 * Wt. n-Val. • 0.070 ` 0.040 " *
* W.S. Elev (fU * 4829:64 • Reach Len. (ft) * 34.00 ' 34.00 * 34.00 *
� Crit W.5. (fU ' 4829.64 • Flow Area (sq fU * 19.51 * 1164.53 * *
' E.G. Slope (ft/£t) *0.012576 � Azea (sq ft) + 19.51 ' 1336.�3 " 1365.97 *
* Q Total (cfs) *16']00.00 * Flow (cfs) * 60.'/l "16639.29 " *
' Top width (ft) + 11�0.51 * Top Width (ft) * 12.69 * 271.00 * 926.82 4
* Vel Total (ft/s) * 14.10 " Avg. Vel. (ft/sl ' 3.11 * 14.29 * *
' Max Chl Dpth (ft) * "1.68 ' Hydi. �epth (£t) ' 1.54 � 6.36 * *
' Conv. Tota1 (cfs) *146917.5 � Conv. (cfsl � 541.3 '148376.1 * *
' Length Wtd. (fU * 34.00 * Wetted Per. (£t) * 13.06 • 183.33 * •
' Min Ch E1 (ftl * 4821.95 * Shear (16/sq ft) * 1.17 * 4.99 * •
* Alpha * 1.02 ' Stream Power Qb/ft s) * 3.65 � 71.26 * +
* Frctn Loss (£t) • 0.10 * Cum Volume (acre-ft) * 28.99 * 175.04 * 638.02 *
• C 6 E Loss (ft) * 1.30 * Cun SA (acres) ' 6.85 * 16.82 * 177.83 T
.r:�t:x.,.:�:.:.+�.::,..t�+.:i.+.�.+.�.c.xww.::.::.,«:.��t:..+:.:::�wxw+.:na�.�..w..xr:x+�xr+wx.i
Warning: The energy equation conld not be balanced within the specified number of iterations. The
program selected the water surface that had the leas[ amount of error between computed and
assumed values.
warning: Divided flow computed for this cross-section.
Warning: The velocity head has changed by more than 0.5 ft (o.i5 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (ups[ream conveyance divided by downstream conveyance) is less than
0.7 oz greater than 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was greater than 1.o ft (0.3 m) . between the current and previous czoss
sec[ion. This may indicate the need for additional cross sec[ions.
warning: Dnring the standard step iterations, when [he assumed water surface was set equal to critical
dep[h, the calculated watez surface came back below critical depth. This indicates that there
is not a valid subcritical answer. The program defaulted to critical depth.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
wa[er surface was used. -
� CROSS SECTION OUTPUT Profile #500 year
Page 31
STVRAIN.rep
.::+.++:.xx+.x.«..,...<.++e.r....+...x...ir.x+•....w+.x.x.r..+...++...<...+i++...w....x..::..::
* E.G. Elev (fU * 4840.62 ' Element ' Left OB ' Channel * Right OB *
+ Vel Head (ft) ' S.SB * Wt. n-Val. ' 0.090 ' 0.040 " *
� W.S. Elev (ft) ' 4835.04 ' Aeach Len. (ft) ' 34.00 ' 34.00 ' 34.00 '
* Crit W.S. (fU * 4835.04� ' Flow Area (sq fU ' 150.1� ' 2153.52 • *
� E.G. Slope (ft/ftl "0.00992� * Area (sq ft) ' 150.17 R 2585.13 �10869.94 �
� Q Total (cfs) "41960.00 ' Flow (Cfs) � ��1.85 *41188.15 ' *
* Top width (f[) ` 2375.�8 � Top width (ft) ' 38.68 * 231.00 * 2106.10 *
• Vel Total (ft/s) * 18.21 * Avg. Vel. (ft/s) * 5.14 • 19.13 ' `
* Max Chl �pth (EU * 13.09 * Hydr. �epth (fU ' 3.88 + 11.77 " '
* Conv. Total (cfs) *421136.6 * Conv. (cfs) " 7746.8 F413389.8 * '
* Length W[d. (fC) k 34.00 * Wetted Per. (ft) * 39.64 a 183.33 " '
* Min Ch F.1 (ft) * 4621.95 * Shear (lb/sq tt) * 2.35 * 7.28 * •
* Alpha * 1.08 * Stleam Power (lb/ft s) " 12.07 ' 139.24 ` '
• Frc[n Loss (ft) ` 0.1� * Cum Volume (acre-ft) • 52.61 * 222.65 ' 1166.13 *
* C & E Loss (ft) * 1.�9 ' Cum SA (acres) ' 7.86 * 16.BB " 194.01 `
i#++�1#i+1F�kii4+i*i###h#*+t*WxWMfARtkFtt�;4lii�i+i#+M#fTifttifitl#k#Y+4iYf1A111R4T1Rf}#1#4+i4#
Warninq: The energy equation could not be balanced within the specified number of iterations. The
program used critical depth for [he water surface and continued on with the calculations.
Warning: The crnss-section end points had to be extended vertically for the computed water surface.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for �
additional cross sections.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
o.� or greater than 1.4. This may indicate [he �eed for additional �czoss sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate [he need for additional cross sections.
Warning: Durin9 [he standard step i[erations, when the assumed water surface was set equal to critical
depth, [he calculated water surface came back below critical depth. This indicates that there
is not a valid subcritical answer. The program defaulted to critical depth.
Note: Multiple critical depths were found at [his location. The cri[ical depth with the lowest,
valid,
water surface was used.
CAOSS SECTION OUTPUT Profile q10 yea[
+++rt..�rxr+x+.�.++xw�++::�:s+i�++Rx«�xxw::x:.tt��xK.w:.�t+s+.+xx::+z:.«it�W�F�Rx+.+3+t+tiaw.w+.
* E.G. Elev (ft) * 4828.23 ' Element * Left OB t Channel * Right 09 *
* vel Head (ft) ' 1.10 ' Wt. n-Val. * 0.0�0 ' 0.040 * *
* W.S. Elev (ft) ' 4827.13 ' Reach Len. (ft) • 34.00 • 34.00 * 34.00 *
' Czi[ W.S. (fU * 4826.4] * Flow Aiea (sq fi) * 0.67 • �06.23 * '
* E.G. Slope (ft/ft) *0.008516 � Area (sq fU * 0.67 * 761.90 • 91.98 *
* Q Total (cfsl ' 5950.00 ` Flow lcfsl * 0.56 * 5949.44 * '
• Top width (ft) ' 292.89 � Top Width (ft) * 2.35 * 221.19 * 69.35 *
* Vel Total Ift/s) " 8.42 * Avg. Vel. (ft/s) * 0.83 * 8.42 * '
• Max Chl Dpth (ft) • 5.18 ` Hydr. Depth (ft) * 0.29 * 3.86 * *
' Conv. Total (cfs) * 644�5.3 ` Conv. (cfs) * 6.1 * 64969.2 • '
* Length wtd. (ft) • 34.00 * We[ted Per. (fU * 2.42 i 103.33 * *
* Min Ch E1 (ft) * 4821.95 * Shear (lb/sq ft) • 0.15 * 2.05 * '
' Alpha * 1.00 * Stream Power (lb/ft s) * 0.12 * 17.25 * *
* Frctn Loss (ft) * 0.05 * Cum Volume (acze-£tl * 13.37 * 127.48 * 185.74 �
* C & E Lo55 (ft) * 0.47 ' Cum SA (aCYe5) ' 3.59 • 16.55 * 125.82 •
.xF....k+w+:..+.+.:.::::.:.++i....::..:=+.E.+.+::::.t..w:::.:.....:..::::��tii�.:.R..t.:���.�+:
Wazning: Divided flow computed for [his cross-section.
Warning: The veloci[y head has changed by more than 0.5 ft (0.75 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downsizeam conveyance) is less than
0.7 or greatez than 1.4. This may iadicate the need for addi�ional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile p50 year
•rxxrw�rx:wri<i.+M+��w�+�w+�*w.r=.+::i«a.xxi+:ixx+:::r�txx�x++irrx:x+�t+r��iiw�tii++i+irr�:��+a
• E.G. Elev (fU * 4831.30 ' Element * Left 00 � Channel * Right OB *
• Vel Head (ft) ' 2.41 * Wt. n-Val. * 0.o70 * 0.040 * *
* W.S. Elev (fU • 4828.90 • Reach Len. (ft) ' 34.00 * 34.00 ' 34.00 *
* Crit W.S. (ft) • 4828.66 * Flow Area (sq ft) * 11.25 • 1029.16 � •
• E.G. Slope (ft/fU `0.011275 * Area (sq ft) ^ 11.25 t 1165.85 * 701.57 *
• q Total (cfs) '12850.00 * Flow (cfs) * 27.59 `12822.41 * *
{ Top Width (ft) * 1110.10 * Top Width (fU * 9.64 ` 231.00 " 869.46 3
• Vel Total (E[/s) * 12.35 * Av9. Vel. (ft/s) ^ 2.45 ' 12.46 * *
" Max Chl Dpth (ft) * 6.94 ' Nydr. �epth (fU ' 1.17 R 5.62 * •
. * Conv. To[al (cfs) *121017.� ' Conv. (cfs) * 259.9 R120757.8 * *
Page 32
. STVAAIN.rep
* Length Wtd. (ft) * 34.00 * Wetted Per. (fU * 9.92 * 183.33 * i
. ` Min Ch E1 fft) * 4821.95 i Shear (16/sq ft) * 0.80 * 3.95 * *
* Alpha � 1.02 * Stream Power (lb/ft s) * 1.96 * 49.23 * •
` Frctn Loss (ft) � 0.08 � Cum Volume (acre-fU • 23.84 * 162.39 * 505.5� R
' C S E Loss (f[) r 1.00 * Cum SA (acres) 3 5.82 * 16.78 * 170.97 •
:.:.......:::...:::«.«w«..+t.....x:x�++wxx�Rrwax.a..x..x�.:...+xr»��:.:.x....�..++++r�i..++..+.
Warning�. Divided flow computed foi [his cross-section.
warning: The velocity head has changed by more than 0.5 ft (o.15 ml . This may indicate the need for
addi[ional cross sections.
warning: The conveyance ratio (ups[ream conveyance divided by downstream conveyance) is less than
0.7 or greater [han 1.4. This may indicate the need for addi[ional cross sections.
warning�. The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indica[e [he need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth oiith the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: SL Vrain River �
REACH: I-25 to Junction RS: �1634
INPUT
Description: This cross-section is ihe downstzeam edge of the rip-rap rundown.
Ineffective flow exisCs in the left over6ank of this cross-section
because of the elevation of I-25.
Station Elevation Data num= 34
Sta Elev Sta EleV Sta Elev Sta Elev Sta Elev
.+.r.::.x.::...:.+.........:xw.x...a...+.a............x.»:...+.....::.::.....x.+
1859 4832 1929 4827.01 1961 4819.73 1975 4819.15 1986 4819.52
2053 4819-86 2083 4819.68 2090 4819.16 2123 4619.51 2150 4879.69
2161 4819.61 2200 4827 2326 4828.29 2471 4828.29 2648 4828.39
2782 482�.�9 2800 482�-79 2934 4827.49 2954 4824.59 2974 4824.59
2992 482�.99 3125 4829.09 3149 4829.89 3356 4829.99 3489 4830.29
��. 3617 4829.59 3777 4830.59 3986 4826.29 3802 4826.29 3H27 4830.89
� 3965 4831_69 4116 4832.79 9312 4634.29 4312.1 4839.29
Manning's n Values num= 3
Sta n Val Sta n val Sta n Val
...::...:......>..+:.+...+..+>+:...,.»,........:
1859 .07 1929 .04 2200 .0�
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E>pan.
1929 2200 26 26 26 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev Permanent
1859 1866 4843 F
2211 4312.1 4843 F
Hlocked Obstructions num= 1
Sta L Sta R Elev
•....::,+.+.x...+wxxt�i•
1859 1877 4827.2
CROSS SECTION OUTPUT Plofile #100 yeaY
•++��++:.xt��:.::x+����w.�rx+rx.x:xxxwrxix.rw���+�+�s+F::w�wtrrz++t:.t:.rRirs�xt+�+a++���i++�t.
• E.G. Elev (ft) * 4831.21 * Element * Left OB * Channel + Right OB *
* Vel Head (ft) • 0.56 • Wt. n-Val. t O.U70 * 0.040 � 0.070 *
• W.5. Elev (ft) � 4830.64 * Reach Len. (fU * 26.00 * 26.0� � 26.00 *
* Cri[ W.S. (ft) * 4825.36 i Flow Area (sq ft) • 92.59 � 2731.03 3 39.45 *
• E.G. Slope (ft/ft) *0.001229 + Area (sq ft) * 92.59 * 2�31.03 * 2990.31 *
* Q Total (cfs) +16700.00 * Flow (cfs) * 102.40 *16528.82 * 66.78 *
" Top Width (ft) * 1947.62 * Top Width (ft) * 50.97 * 271.00 + 1625.66 "
� Vel Total (ft/s) * 5.83 * Avg. VeL (ft/s) * 1.11 + 6.05 * 1.74 *
* Max Chl Dpth IEt) � 11.49 " Hydr. Depth (fU • 1.82 * 10.08 * 3.59 �
* Conv. Total (cfs) *476416.7 * Conv. (cfs) * 2921.2 *477533.3 * 1962.3 *
� Length Wtd. (fU x 26.00 * We[ted Pe2. (ft) * 51.30 * 272.55 " 11.00 �
* Min Ch E1 (fU + 4819.15 ' Shear (lb/sq ft) * 0.14 * 0.77 * 0.28 *
" Alpha * 1.07 • Siream Power (lb/ft s) * 0.15 * 4.65 * 0.48 *
* Frc[n Loss (ft) r 0.03 * Cum Volume (acre-ft) * 28.95 " 173.46 " 636.32 "
" C & E Loss (ft) * 0.03 * Cum SA (acres) { 6.82 R 16.62 * 196.84 * -
, x.....:....+a.:....+++a..+.x«....+::+xx:x�xxx.....:..+a..+:...x...:.:x�.:w:.r....+..�+.w+..+».
Page 33
STVRAIN.rep
,� No[e: Multiple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OOTPUT Profile p500 year
x.rt.+�.:::::...xxi�:.:.::rti.:+:s:..:xxrwwwr:+.:a.:::x.«+x.R.x.t.�..s.xxrr::....:t..r+.r:i+RiF++
* E.G. Elev (fU • 4835.67 • Element • Left OB * Channel � Right OB �
• Vel Head (fU ' 1.99 * wt. n-Val. � 0.070 * 0.040 * 0.070 *
* W.5. Elev (fU * 4633.67 * Reach Len. (ftl * 26.00 * 26.00 � 26.00 *
" Crit 4l.5. (ft) ' 4829.76 � Plow Area (sq ft) • 2�8.24 * 3551.84 ' 72.77 *
' E.G. Slope (R/ft) R0.003113 * Area (sq £U * 291.69 * 3551.64 * 8513.73 �
� Q To[al (cfs) +41960.00 * Flow (Cfs) * H85.64 *90;"]0.62 * 303.�4 `
* Top Width (ft) R 2372.23 * Top Width (fU * 70.00 • 271.00 • 2031.23 •
` Vel Total (ft/S) ' 10.75 * Avg. Vei. (ft/s) ' 3.18 * 11.48 • 4.17 *
� Max Chl Dpth (ft) • 19.52 • Hydr. Dep[h (ft) " 4.42 � 13.11 * 6.62 •
* Conv. Total (cfs) •7519BB.8 ' Conv. (cfs) * 15872.1 *7306'13.1 * 5443.5 *
* Le�gth Wtd. (ftl ' 26.00 * Wetted Per. (ft) * 63.16 " 272.55 * 11.00 *
* Min Ch E1 (ft) * 4819.15 • Shear (lb/Sq fU * 0.86 + 2.53 * 1.29 `
* Alpha � 1.11 ' Stream Power (lb/ft s) ' 2."]3 " 29.08 * 5.37 *
� * Frctn Loss (fU * 0.0� * Cum Volume (acre-ft) ' 52.44 � 220.25 * 1158.57 *
* C & E Loss (fU * 0.15 ' Cum SA (acres) * 7.82 * 16.68 • 192.39 *
�ii�r�a:..i»«.+rrit�t�a�:�Fri��+.+��.ta���a+t+�+++��i+trt.it�tt:rai++:+�+.ax���t�:�x:+.,ux..a+.•
Warning: The cross-section end points had to be extended vertically for the computed water surface.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used. '
CROSS SECTION OUTPUT Profile q10 year
r+:.t�.:::.:.::xt.r++..«++.+,xx++x:.:.:::xr+�:::t�a+�i::::i<+ta.;t�:���t:z+��.++�r�t�.+�+it�����.
* E.G. Elev (ft) * 4827.71 • Element * Left OB ' Channel * Right OB *
" Vel Head (fU * 0.15 * Wt. n-Val. * 0.0"10 * �.040 " 0.070 *
+ W.S. Elev (ftl ' 4827.56 • Reach Len. (fU ` 26.Oo + 26.00 • 26.00 �
" Crit w.S. (ft) * 4B22.56 * Flow Area (sq fU * 2.11 R 1895.01 * 5.52 t
` E.G. Slope (fC/ft) *0.000538 ' Area (sq fU ' 2.11 ' 1895.01 * 155.62 •
" Q Total (cfs) * 5950.00 ' Flow (CfS) ` 0.44 * 5947.85 ' 1.72 *
7� ' Tap Width (ft) * 444.80 * Top Wid[h IfU * 7.69 * 271.00 * 166.10 `
�+� + Vel Total (ft/s) * 3.13 * Avg. Vel. (ft/s) � 0.21 * 3.14 * 0.31 '
� ' Max Chl Dpth (ft) ` 8.41 " Hydr. �epth (ft) ' 0.2� * 6.99 * 0.50 "'
* Conv. Total (cfs) *256533.0 * Conv. (cfs) � 78.9 f256440.1 * "]4.0 *
' Length wtd. (Et) • 26.00 • Wetted Per. (ft) * ']."/1 * 272.55 * 11.00 *
* Min Ch E1 (ft) ' 4819.15 • Shear (lb/sq ft) * 0.01 * 0.�3 * 0.02 *
' Alpha * 1.01 * Stream Power (lb/ft s) • 0.00 * 0.73 * 0.01 *
� Frc[n Loss (ft) • 0.01 * Cum Volume (acre-Et) * 13.37 * 126.44 * 185.64 *
' C & E Loss (ft) * 0.01 • Cum SA (acres) * 3.58 * 16.36 * 125.72 •
x+r�.x++.�i.x++�+.x:..+rF�xxt+«..»x+++x+x::�::t.:+t+�t�+x�+R*::R.:.>.��.::.�rt:����t�:it+yt�t�+
warning: Divided flow compnted for chis cross-section.
Note: Multiple critical depths were found aC this location. The cri[ical depth with the lowest,
valid,
water suxface was used.
CROSS SECTION OUTPUT Profile #50 year
...+«+++...::....:a:..+...+......x......k.a...+,.+.+.+..«...+..�+:.c.�+x+•..:+..:.+.+..�...++.a++
* E.G. Elev (ft) + 4830.22 * Element ' Left OB * Channel ' Right OB *
� vel Head (ft) ' 0.40 * Wt. n-val. ' 0.0'10 * 0.040 * 0.070 *
* W.S. Elev (ft) * 4829.82 3 Reach Len. (ft) * 26.00 * 26.00 * 26.00 *
* CriG W.S. (ft) * 4824.46 k Flow Area (sq fU • 55.31 i 2507.41 * 30.3B *
* E.G. Slope (ft/£t) "0.000974 * Area (sq ft) ' 55.31 � 2507.41 • ll89.45 *
' Q Total (cfs) *12850.00 * Flow (cfs) • 45.87 >12764.52 " 39.61 *
* Top WidCh (ft) * 134.06 * Top Width (fU ' 39.39 • 271.00 • 1040.67 '
* Vel Total (ft/s) * 4.96 ' Avg. Vel. (ft/s) ' 0.83 • 5.09 ` 1.30 *
* Max Chl Dpth (ft) * 10.67 * Hydr. Depth (ft) ' 1.40 * 9.25 * 2.96 *
* Conv. Total (cfs) �411693.1 * Conv. (cfs) * 1469.6 *408954.4 * 1Z69.1 *
* Length Wtd. (ft) • 26.00 * Wetted Per. (ft) * 39.49 * 272.55 * 11.00 �
� • Min Ch E1 (fU " 4819.15 • Shear (lb/sq ft) * 0.09 * 0.56 * 0.17 *
* Alpha ' 1.05 * Stream Power (lb/ft s) * 0.07 • 2.85 * 0.22 x
* Frctn Loss (ft) * 0.02 * Cum Volume (acre-ft) * 23.82 * 160-95 * 504.60 *
" C s E Loss (EU � 0.02 • Cum SA (acres) * 5.80 " 16.58 * ll0.22 *
•+i++��tir�i�+t»�xriat+aii��+w�+x�����ta+r,+w�.r+��rirri��rrir�w<xx����+x�R���+���t����x.������r,rr
warning: �ivided flow computed for this cross-section.
,� Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
Page 34
STVRAIN.rep
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction R5: �1608
INPUT
Description: This cross-section is approximately 40 feet downstream of the
rip-rap rundown.
Station Elevation �ata num= 30
Sta Elev Sta Elev Sta Elev S[a Elev Sta Elev
x.+..aKt�+.ti:.xxwx�+.xfxx.rw�xwxr.«+xxR+��wvww����r.>��.x+�++t.wrx.F*<s��+s�Ft.
1858 4832 1948 4826.2� 19�2 4820 1985 4819.05 1988 4818.51
2160 4818.1 2163 4619.14 2201 4826.83 2326 4828.24 2471 4626.24
264B 4828.34 2782 4027.�4 2800 4827.74 2934 482�.44 2954 4824.54
29�4 4824.54 2992 482�.94 3125 4829.84 3149 4829.84 3356 4829.94
3489 4830.24 3617 4829.54 3�77 4830.54 3786 48Z6.24 3802 4826.24
302� 4830.84 3965 4831.64 4116 4832.74 4312 4834.24 4312.1 4834.24
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
....::.x,:...::«..x...+..+.+..:x+:...r..........
1858 .OJ 1948 .04 2201 .07
Hank Sta: LeEt Right Lengths: Left Channel Right Cceff Contr. Eapan.
1948 2201 376 440 483 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanen[
2283 4312.1 4843 F
CROSS SECTION OUTPUT Profile #100 yeai
..+.:,.:.«+..........:,...::...#.,:.::::.:....:+...+.:::...........a++.......+a+..++.++.....+..
' E.G. Elev (ft) ' 4831.14 t Element ' Left 08 • Channel * Right OB *
" Vel Head (ft) 3 0.49 * Wt. n-Val. * 0.070 ' 0.040 * 0.0�0 *
* W.S. Elev (ft) ' 4830.65 • ReaCh LeR. (ft) * 376.00 * 440.00 * 483.00 *
/ * CYit W.S. (ftl " 4824.49 * FlOw AYea (Sq ftl " 150.62 * 2811.16 * 275.25 •
� * E.G. Slope (ft/ft) '0.000971 * Area fsq ft) * 150.62 * 2811.16 * 3086.38 *
* Q Total (cfs) *16700.00 * Flow (cfs) + 167.76 *16124.12 * 408.12 *
" Top Wid[h (ft) " 1946.75 ' Top Width (f[) � 68.79 * 253.00 * 1624.97 =
* Ve1 Total (ft/s) * 5.16 * Avg. Vel. (£t/S) ' 1.11 * 5.74 * 1.48 *
* Max Chl Dpth (ft) � 12.55 * Hydr. Depth (ft) * 2.19 * 11.11 * 3.36 •
• Conv. Total (cfs) '535975.7 * Conv. (cfs) * 5384.2 *517993.3 * 13098.2 *
* Length Wtd. (fU ' 444.11 * Wetted Per. (ft) * 68.93 * 254.83 ' 82.01 *
* Min Ch E1 (ft) ' 4fl18.10 + Shear (Sb/sq ft) * 0.13 + 0.67 * 0.20 *
* Alpha * 1.20 t Stream Power (lb/ft s) * 0.15 * 3.83 • 0.30 •
* Frc[n Loss (ft) � 0.4� * Cum Volume (acre-ft) � 28.88 * 171.80 • 634.50 *
* C & E Loss (ft) � 0.02 � Cum SA (acres) • 6.79 t 16.47 * 175.87 *
xtr.::::..xxx..�a.::..:x+:::.:R:..:R...::tt+�a.i�:.::..rxx+Rr�xKx:r�+tKxi�+tawa+3+�:tr:..xx+rr+
Note: Multiple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile q500 year
+�i:�.:x+s�.Kx�a��i+::+:.:.:xxxx:�x�t:t.:�t��x��e++xxx»wx*rt.r�is+��i:+w+a�+������rxxw+�++tY�ie
' E.G. Elev (ft) * 4835.44 " Element • Left OH * Channel • Right OB *
* Vel Head (fU * 1.69 * Wt. n-Val. * 0.070 " 0.040 * 0.070 *
R W.5. Elev (ft) * 4833.75 * Aeach Len. (ft) * 376.00 * 440.00 * 483.00 *
* Crit W.S. (ft) r 4829.42 ' Flow ATea (sq ft) * 415.74 t 3596 J2 * 529.86 *
' E.G. Slope (Et/fU *0.002475 • Area (sq ft) * 415 J4 * 3596 J2 * 8785.36 *
• Q Total (cfs) *41960.00 * Flow (cfs) * 1200.55 *38818.42 * 1941.03 *
* Top Width (fU * 2390.52 � Top Width (£t) * 90.00 * 253.00 * 2047.52 •
" Vel To[al (ft/s) � 9.24 • Avg. Vel. (ft/s1 � 2.89 k 10.79 3 3.66 *
" Max Chl Dpth (ft) * 15.65 * Hydr. �epth (ft) * 4.62 � 14.22 " 6.46 *
' Conv. Total (cfs) *B43472.6 * Conv. (cfs� * 24133.3 *780321.2 * 39018.2 >
* Length Wtd. (ft) ` 444.34 * Wetted Per. (ft) * 91.94 * 254.83 * 82.01 �
* Min Ch E1 (ft) * 4818.10 � Shear (lb/sq ft) • 0.90 * 2.18 " 1.�0 *
* Alpha * 1.27 • Stream Power (lb/ft s) r 2.02 � 23.53 * 3.66 *
• Frctn Loss (ft) � 1.04 * Cum Volume (acre-fU * 52.23 * 218.12 * 1153.40 � �
' C & E Loss (f[) " 0.29 * Cum SA (acres) + 7 J7 * 16.52 • 191.18 *
:+.:.....xw..w.+..++.:.,«...+.w..x....w:.x.:•..xx.....+..:....x.:w......r:..++..a.:rt�xxw:+....+
Page 35
STVRAIN.rep .
� Warninq� The cross-section end Foin[s had to be extended vertically for the computed water surface.
� Warning: The velocity head has changed by more than 0.5 ft (0.15 ml . This may indicaCe the need for
additional cross SeCtions.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between Che current a�d previous cross
section. This may indica[e the need for addi[ional cross sections.
Note: Multiple critical dep[hs were found at this location. The critical depth with the lowest,
valid,
energy was used. �
CROSS SECTION OUTPUT Profile #10 year
.:a.�x.xw::a�:,:.....x...«.�r.�«.���«x«E.�.x�x..:aw.x:..x.:::.:..�:a.tFwi..+*+r�a»r�t«..«.:++��E
* E.G. Elev (fC) � 4827.69 * Elemen[ ' Left OB ' Chan�el • Right OB *
* Vel Head (fU ` 0.13 * wt. n-Val. * 0.090 * 0.040 * 0.070 *
* W.5. Elev (ft) * 482"/.56 � Reach Len. (ft) ' 376.00 � 440.00 * 483.00 �
* Crit W.5. (ft) ' 4621.54 • Flow Area (sq ft) ' 12.99 • 2028.56 ' 23.37 *
* E.G. 51ope (Et/ftl *0.000391 ' Area (sq fU ` 12.99 ' 2028.56 ' 169.68 *
• Q Total (cfs) * 5950.00 * Flow (cfs) ' 4.06 * 5940.95 * 4.99 "'
* Top width (ft1 * 471.29 * Top Width (ft) • 20.20 * 253.00 ' 198.09 *
* Vel Total (ft/s) � 2.88 * Avg. Vel. (ft/s) ' 0.31 • 2.93 * O.�i *
* Max Chl Dpth (f[) * 9.46 * Hydr. Depth (ft) ` 0.64 • 8.02 ' 0.36 *
' Co�v. Total (cfs) *30088�.5 ' Conv. (cfs) * 205.2 •300429.9 * 252 A *
* Length Wtd. (ft1 ' 441.�9 " Wetted PeY. (£t) * 20.24 * 254.83 • 64.39 •
* Min Ch E1 (ft) * 4818.10 * Shear (lb/sq ft) ' 0.02 • 0.19 ' 0.01 *
* Alpha ' 1.03 ` StYeam Power (16/ft s) • 0.00 • 0.5'] * 0.00 *
• Fzctn Loss (ft) * 0.21 ' Cum Volume (acre-fU * 13.37 * 125.27 * 185.55 `
* C 6 E Loss (ft) * 0.01 �. Cum SA (acres) ' 3.5'1 * 16.20 * 125.62 *
::...:::+:++...::.....+++x.+..:..:.::,::,.t:rt�Frs,t++..::::�i:+i3�+�r:+R:rx.+:::::+:�+ri.r+++:..
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths w=re found at this location. The critical depth with the lowest,
valid,
enexgy was used. �
CROSS SECTION OUTPUT Pmfile #50 year
:i::::,.i+.:.,:+�::.t:..:i.�F+�.wix.++:.:.x.:::�as+++++.x+x::.�.i*+w���x»Kr:+�xx::i:::t�:i+F��+i
• E.G. Elev (ftl * 4830.17 * Element � Left OB • Channel • Right OB f
kf • Vel Head (EU ' 0.35 ' Wt. n-Val. * 0.090 * 0.04� Y 0.070 ;
,� • W.5. Elev (£tl ' 4829.62 * Reach Len. (ft) 3"]6.00 440.00 483.00
* Crit W.S. (ft) * 4823.54 * Flow Area (sq ft) ' 98.93 * 2601.15 • 207.18 '
. � E.G. Slope (f[/ft) "0.000�61 * Area (sq ft) * 98.93 * 2601.15 * 1848.82 *
� " Q Total (cfs) *12850.00 � F1ow (cfs) * 84.79 •12540.21 * 225.00 `
* Top Width (ft) * 13"]0.00 ' Top Wid[h (ft) * 55.75 • 253.00 * 1061.25 '
+ Vel Total (ft/s) ' 4.92 " Avg. Vel. (ft/s) ' 0.86 * 4.82 • 1.09 *
* Max Chl �pth (ft) ` 11.72 ' Hydr. Depth (fU * 1.77 * 10.28 * 2.53 •
* Conv. Total (cfsl '465910.8 ' Conv. (cfs) * 30"/4.2 *454678.5 • 8158.1 *
• Length Wtd. (ft) * 443.71 * wetted Per. (ft) ' 55.86 * 254.83 t 82.01 '
• Min Ch E1 (ft) * 4818.10 ' Shear (lb/sq ft) * 0.08 * 0.48 * 0.12 `
' Alpha ' 1.16 • S[ream Powe[ (lb/ft s) • 0.07 * 2.34 * 0.13 *
* Frc[n Loss (ft) • 0.38 • Cum Volume (acre-ft) * 23.77 t 159.43 * 503.51 *
* C & E Loss (fU * 0.00 • Cum SA (acres) ' 5.77 " 16.43 * 169.59 '
xx�xxxw+:t::xrt:t�R.�+ii.i+..x:t,.:�i+++ww�xR:x:::«�w.ww+x:x�:�:+ir.�>>xxr...::.::i++Fr.�+x�+:.+.
Warning: Divided flow computed for [his cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
LATERA7. STRUCTURE
RIVER: St. Vrain River
REACH: I-25 to Junction RS: 71465
INPUT
Description: This lateral weir is the first location where water overtops the
berm.
Lateral structure position = Next o[ left bank station
Distance from Upstream XS = 140
Deck/Roadway width = 30
Weir Coefficien[ = 2.63
Weir Flow Reference = Water Surface
Weir Emhankment Coordinates num = 5
, Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.........:.:.....x...«,,.:a.:.+a.,.,...,:..+«......:x+w.x.......:.sa.+:r.:w:.x..
Page 36
STVRAIN.rep
� 1561 4832 1621 4830 1726 4829.9 1970 4B29.4 2000 4830
weir crest shape � - Broad Crested
LATERAL STRUCTURE OUTPUT Profile q100 year La[ Struct
::..::.«xxi....ixa�.x.::.::i:...+��.f.ir+i1...��..tx�:.i+:.�.....+.xakt:.
' E.G. OS. (ft) * 4830.99 * Weir Sta US (ft) ' 160"/.22 *
* w.S. US. (ft) * 4830.R * Weir Sta DS (ft) * 1997.34 •
" E.G. DS (fU • 4830.43 + Weir Max Depth (fU * �.62 *
* W.S. DS (fU " 4829.94 • Weir Avg Depth (ft) * 0.53 *
* Q US (cfs) *16700.00 * Weir Submerg * 0.00 "'
* Q Leavi�g Total (cfs) * 406.91 * Min E1 Weir Flow (fU * 4829.40 •
* p DS (cfs) *16z9"1.50 * Wr Top Wd[h (ft) * 390.12 *
* Perc p Leaving * 2.41 * Q Gate Group Icfsl + *
* Q Weir (cfs) ' 906.41 * Gate Open Ht (fU * +
` Q Gates (cfs) � * Gate pOpen + *
* Q Culv (cfs) * � Gate Atea (sq ft) * � *
* p Lat RC (cfs) * * Gate Submerg * •
* Weir Flow Area (sq fU * 20"1.59 + Gate Inver[ (ft) ` '
:�...+Kr:..t:w+,r.�.��+::....++i.�...i.:twxxx*�r+w�r:rFi:.::axwxxx+r:�t*+�+i�:
LATERAL STRUCTURE OUTPUT Profile q500 year Lat Struct
i.:+::r:.x+ri��.x:�wRswxir�:+::...+.rrr+s�i++tx++++h�*+Fi.��+:.::+rx.+..x�
* E.G. OS. (ft) * 4835.02 � Weir Sta US (fU • 1561.00 •
* W.S. U5. (ft) * 4833.52 * Weir Sta DS (fU ' 2000.00 '
* E.�. DS (ft) ' 4833.�5 * Weir Max �epth (ft) � 3.44 *
t W.S. nS (ft) * 4832.65 * Weir Avg Depth (ft) t 3.25 *
` Q US (cfs) *41960.00 * Weir Submerg * 0.36 *
' Q Leaving Total (cfs) * 6823.34 * Min E1 Weir Flow (£t) * 4629.40 *
* Q DS (cfs) �35138.6� * Wr Top Wdth (fU � 439.00 R
' Perc Q Leaving * 16.26 ' Q Gate Giouo (cfs) * t
' Q Weii (cfs) * 6823.34 * Gate Open H[ (ft) ' •
* Q Gates (cEs) * � Gate NOpen * i
* Q Culv (cfs) * � Gate Area (sq ftl * *
' Q La[ AC (cfs) i � Gate Submerg * *
* Weir Flow Area (Sq fU • 1428.86 • Gate Invert (ft) * *
x..+x+:.:,,..�«xxt:a:::.+x+xxt�.�..::.::xxKx..w�+k..:.::..rr,wwwx:��..rx+.:.
LATEAAL STRUCTORE OUTPUT Profile #10 yeaY Lat StzuCt
:...�+i�t�:xxxxr,xi+t.�:x::<.w.+iat�a,.t::::wxw.wi+rkt..�:��xx+�r+.k�x++ii•
' E.G. US. (ft) * 4827.62 � Weir Sta US (fU • � '
* W.S. US. (ft) * 4827.48 � Weir Sta DS (ft) ' �
` E.G. DS (f[) � 4827.34 • Weii Max Depth (ft) • •
' W.S. DS (fU * 482�.13 T Weir Avg �epth (ft) * •
* Q US (cfs) * 5950.00 * Weir Submerg * *
* Q Leaving Total (cfs) * 0.00 * Mi❑ E1 Weir Flow (ft) " 4829.40 *
* Q DS (cfs) * 5950.00 * wr Top Wdth (fU * *
• Perc Q Leaving R o.00 t Q Gate Group (cfs) * *
* Q Weir (cfs) � * Gate Open At (ft) * �
• Q Gates (cfs) * � Ga[e qOpen * *
* 4 Culv (cfs) + + Gate Area (sq ft) * *
* Q Lat RC (cfs) + y Ga[e Submerg * *
* Weir Flow Area (sq ft) i + Ga[e Invert (ft) * *
.:.xx.xx..:..x+.:....:xxx.x.+.:..:..x:.xxx.+.++...x+xx.x:.........:....x.
LATERAL STRUCTT7RE OUTPUT Profile �50 year Lat Struct
..>......:..+:.:.:x.....r.:.:.......++r..:.xa..x.++t..+.++..«.+.+..+.++:..
'� E.G. US. (ft) * 4830.05 • Weil Sta US (ft) * *
* W.S. US. (ft) '� 4g29.70 * Weir Sta �S (ft) * •
* E.G. DS (ft) * 4829.60 * Weir Max Depth (ft) � *
* W.S. DS (ft) t 4829.20 • Weir Avg Oepth (fU * •
• Q US (cfs) *12850.00 ` Weir Su3Jmerg * *
• Q Leaving Total (Cfs) " 0.00 * Min E1 WeiT Flow (ft) " 4829.40 *
* Q DS (cfs) �12850.00 * Wr Top Wdth (ft) * *
� Perc q Leaving • o.00 = q Ga[e Group (cfs) * +
* Q Weir (cfs) * * Gate Open Ht (ft) � *
' Q Gates (cfsl � + Gate qOpen • *
* Q Culv (c£s) * • Gate Area (sq fU * *
` 4 Lat RC (cfsl * � Gate Submerg • +
' weir Flow Area (sq fU t ' Gate Invert (f[) " *
Wfk4**kf'.l1Rt44Viafi44+#*4tYiA�.Y#Yi4!!!*k4i4#Y##1;iM#1#Y##i###4ifi!*1f#i#k#M
,r CROSS SECTION
Page 37
STVRAIN.rep
RIVER� St. Vrain River
REACH: I-25 to Junctian RS: �ll68
INPUT
nescription:
Station Elevation �ata num= 23
Sta Elev Sta Elev Sta Elev Sta Elev Sta EleV
::....:.:.:..:.xx.».xx:..:x=..+:+....x+..+x..R.+.w..w.x....::+.w....x...:.++...+
1933.5 4830.8 2038 482�.9 205].6 4821.3 2076 4819.5 2096.3 4818.7
2101 4818.4 2204.5 4818.2 2222 4819.5 2255 4826.9 2358.4 4825
2�49 9825 2�6� 4823.5 2�95 4823.5 2824 9824.8 3069 4827
3949 4029 3969 4829 3975 4827 3999 4829 4008 4829
4130 4831 4294 9833 4564 4835
Manning's n Values num= 3
S[a n Val Sta n Val Sta n Val
•:..+.a+��i+{++++ti�trit.xikwi�....:..:i.wwxrwrw
1933.5 .07 2038 .04 2255 .07
Bank Sta: Left Right Lengths: Lef[ Channel Right Coeff Contr. Espan.
2038 2255 3�6 440 483 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanen[
2563 4564 4843 F
CROSS SECTION OUTPUT Profile #100 year
•ww:..:++�:�++�ts���a++r+x�wtrRx:�t.++aa»�r+xxx+�tr.xwx++:+�ix�.x.��++sWs�+�+wx�;x+t+�w�rxwrr:x
+ E.G. Elev (ft) r 4830.65 ' Element * Left OB * Channel * Right OH *
• Vel Head (ft) � 0.45 * Wt. n-Val. * 0.0�0 * 0.040 * 0.07� *
• W.S. Elev (ft) • 4830.20 ' Reach Len. (ft) * 376.00 * 440.00 * 483.00 *
* CYit W.S. (ft) ' 4825.89 ' Flow ATea (Sq ft) * 95.34 * 2231.48 * 1503.44 *
* E.G. Slope (f[/ft) *0.00ll5� • Area (sq ft) � 95.34 2231.48 * 60�5.33 *
` Q Total (cfs) *16445.85 * Flow (cfs) * 75.53 �132a7.32 * 3123.00 *
3 Top Width (ft) < 2126.10 • Top Width (fU " 82.89 * 217.00 � 1826.21 •
� * Vel Total (ft/5) * 4.29 ' Avg. Vel. (ft/s) + 0.79 R 5.94 * 2.08 *
. * Max Chl Dpth (ft) � 12.00 + Hydr. Depth (ft) i.15 10.28 4.88
• Conv. Total (cfs) *483585.1 ' Conv. (cfs) * ZZ21.0 '389533.3 * 91830.8 •
* Length Wtd. (ft) ' 450.20 * Wetted Per. lft) • 82.92 * 219.06 * 308.02 *
* Min Ch El (ft) * 4818.20 * Sheai (lb/Sq ft) * 0.08 " 0.74 * 0.35 '
* Alpha * 1.58 • Stream Power (lb/ft s) • 0.07 < 4.37 ' 0.73 '
* Frctn Loss (ft) * 0.66 • Cum Volume (acie-ft) • 27.82 * 146.33 * 503.71 •
* C & E Loss (ft) * 0.04 � Cum SA (acre5) * 6.13 * 14.09 * 156.73 *
£�ixkitk44ikfix+f#fAfRR#F*+41k1F�kti44W4%f#*4*+Y#f1£41+iiYRAtxFRfi�1f1li4fM#Yxkttlx#sff4441FiY#
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
enexgy was used.
CAOSS*SE*T*ON*OUTPUT**Pzof:.•.�.��.Ye+..............+.......+................... .. .........
..+.x .. w ..w . x.xx . x++ +
* E.G. Elev (ft) * 4834.11 * Element t Left OH * Channel * Right OH *
* Vel Head (ft) + 1.10 * wt. n-Val. * o.o70 * o.040 ' 0.0�0 •
• W.S. Elev (ft) ' 4833.07 * Reach Len. (ft) * 376.00 • 440.00 ' 483.�00 *
* Crit W.S. (f[) * 4829.40 * Plow Area (sq ft) * 382.31 * 2840.84 * 2368.33 *
* E.G. Slope (f[/ft) �0.002191 • Aiea (sq ft) * 382.31 * 2840.84 •11486.38 *
* Q Total (cfsl '37324.55 * Flow (cfs) * 889.25 •27267.54 • 916�.76 i
• Top Width (ft) * 2361.62 * Top Width (ft) * 104.50 * 217.00 * 2040.12
* Vel Total (ft/s) * 6.68 � Avg. Vel. (ft/s) • 2.33 * 9.60 * 3.87 *
x Max Chl Dpth (ft) * 14.81 3 Hydr. Depth (ft) * 3.66 * 13.09 * 7.69 •
* Conv. Total (cfs) *797350.4 • Conv. (cfs) * 18996.7 +582506.4 *195847.4 •
* Length Wtd. (ft) • 452.83 * Wetted Per. (fU * 106.75 * 219.06 + 308.02 �
` Min Ch E1 (fU * 4818.20 * Shear (lb/sq ft) * �.49 � 1 J7 1.05
* Alpha * 1.60 R Stream Power (lb/ft s) " 1.19 * 17.03 * 4.07 t
* Frctn Loss (ft) ` 1.16 � Cum Volume (acre-f[) * 48.78 * 185.61 � 1041.01 +
* C k E Loss {fU * 0.01 * Cnm SA (aczes) ' 6.93 * '14.15 " 168.51 �
khxxFlRx#R1F%fx!!#1*41k###+�AFfii4#Y1x##i441f#iY1#/4#Lflxlki4RlFfiTlfl��x#iYhl+4fik1ti4�*!!#4Fi
Wazning: The cross-section end points had to be extended vertically for the compvted water surface.
Warning: The enezgy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
�� Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
Page 3B
STVRAIN.rep
energy was used.
i
CROSS SECTION OOTPUT Profile #10 year
.+....+...+:.,x:.,..:,,,...:.:..:+.,,.,:+....+..+++..+._.....+........x.......x....+...«..+.:.r
; E.G. Elev (fU ' 4827.47 * Element � Left OB � Channel * Right OB '
* Vel Head iftl * 0.17 " wt. n-Val. • * 0.040 ' 0.070 *
' W.S. Elev (ft) • 482�.31 * Reach Len. (ft) ' 3�6.00 • 440.00 = 483.00 •
' Cri[ W.5. (fU * 4822.15 " Flow Area (sy ft) * * 1603.79 * 611.7� '
* E.G. S1ope (Et/ft) "0.000583 • Area (sq ft) ` * 1603.�9 * 1659.05 "
' Q Total (cfs) + 5950.00 ' Flow (Cfs) * * 5454.57 * 495.43 *
* Top Widih (ft) � 1169.09 ' Top Width (ft) * * 215.23 * 952.86 *
' vel Total (ft/s) � 2.69 " Avg. vel. (ft/s) " * 3.40 • 0.81 *
* Max Chl Dpih Ift) + 9.10 ' Hydr. Dep[h (ft) * * 7.45 * 1.99 *
* Conv. Total (cfs) *246431.8 * Conv. (cfs) � +225912.6 * 20519.2 '
* LengCh Wtd. (ftl * 443.71 • Wetted Per. (ft) * * 217.20 * 308.02 *
* Min Ch E1 (ft) " 4818.20 * Shear (lb/sq fU * * 0.27 * 0.0� '
• Alpha * 1.48 * Stream Power (lb/ft s) • * 0.91 • 0.06 *
* Frctn Loss (ft) * 0.36 * Cum Volume (acre-fU * 13.31 ' 106.93 • 195.41 *
* C 6 E Loss Ift) • 0.04 � Cum SA (acres) * 3.49 � 13.84 " 119.23 *
.+x+.::.......+........�.::�::.::..,:...:.x+....x+x...+«+x..+,....:..:::.....+.:::...:...::x.++:
Warning: Divided flow computed for this cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less ihan
0.7 or greater than 1.4. This may indicate the need for additional cross ,ections.
Note: Mul[iple critical depths were Eound at this location. The czitical depth with the lowes[,
valid,
energy was used.
CROSS SECTION OUTPUT Profile p50 yeax
..:+:...++::.:::..,+.�.....+++..+.+..x+...+x+.+:.:.:::..:+::.....+...x...xxx+x.x.+t.+........x:
t E.G. Elev (ftl * 4829.79 * Element ' Left 06 � Channel * Right OH *
k Vel Head (ftl * 0.35 * Wt. n-Val. ' 0.070 * 0.040 ` 0.0�0 *
• W.S. E1ev (ftl * 4829.44 * Reach Len. (fU * 3�6.00 * 440.00 * 483.00 *
* Crit W.5. (ft) * 4824.39 * Flow Azea (sq fU * 42.�6 * 2066.61 ' 1269.43 �
* E.G. Slope (ft/£t) *0.000969 ' Area (sq fU * 42.76 * 2066.61 ' 4�05.44 *
* Q Total (cfs) �12850.00 * Flow (cfs) * 23.74 *10669.99 * 2156.27 '
' Top width (ft) ' 2052.38 * Top Width (ft) * 55.51 ' 217.00 ' 1779.8� `
f� * Ve1 Total (ft/s) • 3.80 * Avg. Vel. (f[/s) * 0.56 ' 5.16 * 1.70 '
* Max Chl Dpih (ft) * 11.24 * Hydr. Depth (ft) * 0.77 • 9.52 * 4.12 *
� Conv. Total (cfs) *412787.5 * Conv. (cfs) * �62.5 •34275�.9 ' 69267.1 *
* Length Wtd. (fU * 448.92 " Wetted Per. (ft) * 55.54 * 219.06 * 308.02 +
* Min Ch E1 (ft) * 4818.20 * Shear Qb/sq ft) * 0.05 * 0.57 * 0.25 *
* Alpha * 1.56 * Stream Power (16/ft s) * 0.03 * 2.95 * 0.42 *
� Frc[n Loss (ft) * 0.57 * Cum Volume (acre-ft) * 23.16 ' 135.85 + 46�.18 *
* C 6 E Loss (ft) • 0.04 * Cum SA (acres) * 5.29 • 14.05 ' 153.84 *
t+t�.+.::::ra.«.xri�.rFRwti�.�a+t.+xF+�i��ixx.+r.x�r�+�.xi*.a+i+.a��i�++:+�t+iat++t:.xxrr.w���:
Note: Multiple critical depths were found aC this location. The critical depth with [he lowest,
valid,
energy was used.
CAOSS SECTION
RIVER: St. Vrain Rive[
REACH: I-25 to Junction RS: 70728
INPt1T
Descrip[ion:
Station Elevation Data num= 34
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
itf+Rii#I1iiY4t#+#Ax1tR#k*t�.!'.!1#1A�.l1:fh1:i1:R1Rl1Fk:t4A�.l�.lTR*:l1:kM1tx11'Rhi4#'FFi#*i#i'�#1
2129 4829.5 2155 4819.55 2214 4818.25 2249 4818.25 2281 4819.95
2310 4827.a5 2924 4824.25 2597 4924.25 2626 4822.75 2656 4824.35
2"184 9824.95 2800 4822.55 2836 4822.55 2850 4623.45 2887 4825.15
3032 4825.15 30�2 4926.55 3086 4823.55 3253 4823.65 3415 4823.65
3582 4823.65 3760 4823.65 3796 4828.95 3849 4826.95 3945 4826.95
4133 4827.85 4145 4824.85 4153 4824.85 4161 4826.05 4378 4831.45
4525 4833.05 4595 4833.35 4753 4834.95 4932 4836.75
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
♦'FiMiTAi#i1l4i�t#ti>�I1MIft4441#ti#IftY#Y+i�.lf4t4
' 2129 .07 2129 .04 2310 .07
Page 39
STVIL4IN.rep
Bank S[a: Left Righ[ Lengths: Left Channel Right Coeff Contr. E�cpan.
2129 2310 8�0.5 494 504-5 .3 .5
Ineffec[ive Flow num= 1
Sta L Sta R Elev Permanent
2866 4932 4843 F
Blocked Obstruc[ians num= 1
Sta L Sta R Elev
+.i.k..i��t�+ii:.,::.:..
2506 3792 4825.91
CROSS SECTION OUTPUT Profile q100 yeaY
i.+a�..r�r�:�R�+x�+:++i�.:�i**i:+.rraw..ww+rr:x:n�.+x:::k�:.::t:�:+:�t..w+r.+x«r+t,�W��+ri+rir:++�r
k E.G. Elev (fU * 4829.% * Element * Left OH * Channel � Right OB �
+ Vel Nead (ft) * 0.57 ' Wt. n-Val. * ' 0.040 * 0.070 *
' W.S. Elev (ft) � 4829.38 * Reach Len. (ft) ' 800.50 ' 494.00 ' 504.50 '
* Crit W.S. (fU * 4827.29 * Flow Area (sq ft) • ` 1633.94 � 2096.06 *
' E.G. Slope (ft/ft) *0.001957 t Area (sq fU * * 1633.94 ' 6295.56 �
• Q Total (cfsl `16297.50 * Flow (cfs) ' "11539.16 " 4758.35 * .
* Top width (Et) � 2165.58 � Top Width (ft) * � 180.69 * 1984.89 •
• Vel Total (ft/s) ' 4.37 * Avg. Vel. (ft/s) " • 7.06 • 2.27 *
* Max Chl Dpth (ft) ' 11.13 * Hydr. Depth (fU ' ' 9.04 * 3.'1"/ '
* Conv. Total (cfs) {368385.6 R Conv. (cfs) * *260828.9 *107556.7 *
� Length Wtd. (ft) ' 498.16 � Wet[ed Per. (ft� * ' 183.42 * �557.69 *
* Min Ch E1 (fU * 4818.25 * Sheaz Qb/sq ft) * • 1.09 * 0.46 *
+' Alpha * 1.93 • Stream Power Qb/ft s) ' * �.69 * 1.04 *
* Frctn Loss (ft) * 0.85 ' Cum Volume (acre-fU ' 27.40 * 126.81 * 515.13 •
* C & E Loss (ft) * 0.12 * Cum SA (acies) ' 5.7� * 12.09 * 135.60 *
fFi*'R'kx�.Y4*#f+M-.lRi+-.lxwfk#If*ff�f+TRitftiYYAhi#rtIlFT�fFtftiiwif#f4ik4'ki41'R:YRtR�f#itfif4fiit4[4iffi
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OOTPUT Profile k500 yea2
+i:e.:::r:::,:::.::::i�..��r�.i++x.a+++*a++�t.s�r:+rw.xx::.:�t�:�it�ir�.Rrx�+a*�+.+x+a�k�+�i++++
� * E.G Elev (ft) * 4832.95 * Element ' Left OB * Channel * Right OH *
, * Vel Nead (tt) 1.09 ' Wt. n-Val. 0.040 0.070
* W.S. E1ev (ft) ` 4831.86 ' ReaCh Len. (ft) ' 800.50 ' 494.00 * 504.50 '
* Crit W.S. (ft) ' 4829.63 * Flow Area (sq ft) ' ' 2082.35 * 3473.57 •
• E.G. Slope (ft/ft) '0.003047 * Area (sq ft) ' * 2082.35 *11340.85 '
* Q Total (cfs) *35138.67 * Flow (cfs) * '21360.37 *13778.29 •
' Top Width IfU • 2286.60 + Top Width (fU " * 781.00 ' 2105.60 *
* Vel Total (ft/s1 * 6.32 * Avg. Vel. (ft/s) ` * 10.26 * 3.97 '
* max Chl Dpth (ft) * 13.61 * Hydr. �epth (ft) * ' 11.50 t 6.25 "
* Conv. Total (cfs) *636574.1 * Conv. (cfs) * '386965.7 E249608.3 *
* Length Wtd. (ft) * 499.99 * Wetted Per. (ft) ' " 186.17 * 557.69 *
+ Min Ch E1 (fU * 4816.25 " Shear (lb/sq ft) * * 2.13 * 1.18 *
* Alpha * 1.�5 R Siream Power (lb/£t sl * * 21.83 * 4.70 *
" Frcin Loss (ft) * 1.20 * Cum Volume (acre-ft) * 47.13 * 160.74 • 914.46 +
* C & E Loss (ft) * 0.28 * Cum SA (acres) * 6.48 * 12.14 * 145.53 *
..:x+..+..x..........,:,:,.........::.::...x.`x+.,.:::::,.+.::.....:.:::......+..:,.:..::..:...:
Warning: The cross-sectio� end points had [o be extended vertically for the computed water surface.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the wrrent and previous cross
section. This may indicate the need for additional cross sections.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Pmfile it10 yedY
1fR1:Y#'.l111n1tI#filfffl#a1'.ltl:itFi4fY1'.lf1i###R1Rk1:Rft41i'k#iAt�fft4#f##+Tvl+kf##11f1fMAkiAi�#44#44+
* E.G. Elev 1ft) * 4627.07 * Element ' Left OB * Channel * Right OH *
* Vel Head (ftl • 0.30 • W[. n-Val. " t 0.040 • 0.070 *
• W.S. Elev (fU * 48a6.76 ' Reach Len. (ft� • 800.50 * 494.00 * 504.50 *
* Crit W.S. (fU * 4822.87 • Flow Area (sq fU * * 1163.56 t 640.69 *
* E.G. Slope (f[/fU '0.001234 " Area (sq ft) * * 1169.56 ` 1953.53 *
• Q Total (cfsl " 5950.00 • Flow (cfs) * * 5478.37 + 531.63 *
* Top Width (ft) ` 1684.28 " Top Width (fU * t 172.66 * 1511.61 �
� Vel Total (ft/s) ' 3.29 ' Avg. Vel. (ft/s) ` * 4.63 * 0.83 "
a ' Max Chl Dpth (ft) � 8.51 * Hydr. �epth (f[1 * • 6.77 * 1.18 `
� * Conv. Total (cfs) �169353.8 • Conv. (cfs) *159222.2 * 15131.6
Page 40
STVRAIN.rep
� ' Length Wtd. (fU * 495.95 � Wetted Per. (ft) ' + 1]4.88 * 545.54 *
. * Min Ch E1 (ft) * 4818.25 ' Shear (lb/sq fU * ' 0.52 * 0.09 t
k Alpha * 1.81 * StYeam PoweY (lb/ft 5) • � 2.39 � 0.08 *
* Frctn Loss (f[I � 0.5� ` Cum Volume (acre-fU * 13.31 • 92.92 * 158.15 *
' C & E Loss (ft) " 0.05 * Cum SA (acres) • 3.49 ' 11.88 * 105.57 •
+.*�+x.+:�,.«.:...:...:wwx++::..::..x.�«�r+���».x��x�+R+��.:::.�:R,.xxx:..F�.xR�i.ry+.r+t.::...
wazning: Divided E1ow computed for this cross-section.
Note: Mul[iple critical dep[hs were found at this location. The critical dep[h with [he lowest,
valid,
energy was used.
CROSS SECTION OOTPUT Profile #50 year .
w::+:�..ww�.�.:.:+x..�.i:..:::xa+xw.x+.xx�.+��+K+++aw�ii.*.::.:.:.::x:xwwwxr..w�+r�a+F+t+::.w:x
* E.G. Elev (ft) * 4829.18 ' Element R Left OH * Channel * Right OB *
' Vel flead (ft) + 0.49 • Wt. R-Val. * * 0.040 * 0.070 *
* W.S. Elev (fU • 4828.69 * Reach Len. IfU * 800.50 * 494.00 * 504.50 *
' Crit W.S. (ft) * 4825.75 * Flow Area (Sq ft) " + 1549.37 * 1710.82 *
* E.G. Slope (ft/ft) +0.001�54 " Area (sq ft) * * 1509.37 * 4931.06 *
= Q Total (cfs) •12850.00 ' Flow (cfs) * * 9639.00 � 3211.00 *
• Top Width (fU * 2127.23 * Top Width (f[) t * 178.88 • 1949.35 �
* Vel Total (ft/s) * 3.99 * Av9. Vel. (ft/s) ' * 6.39 * 7.80 *
� Max Chl Dp[h (ft) � 10.44 * Hydr. Depth (ft) * " 8.44 * 3.08 *
* Conv. Total (cfs) '306833.6 * Conv. (cfs) * •230161.1 i 76672.5 •
• Length Wtd. (EU * 497.64 R Wetted Per. Ift� � * 181.49 * 557.69 t
* Min Ch E1 (f[) i 4818.25 ' Shear (lb/Sq ft) * k 0.91 * 0.34 *
* Alpha * 1.98 • Stream Power (lb/ft sl * * 5.82 * 0.63 x
* Frctn Loss (ft) * 0.�� * Cum Volume (acre-fU ' 22.98 * 117 J9 * 413.75 *
' C & E Loss (ftI * 0.10 * Cum SA (acres) * 5.05 * 12.05 * 133.17 *
•{+t++.....r+++k....:::::..rxxxixwx��x*�a*at�++�++F�r+ti:.:::.x�xw+��.x+w.a�y+atrF:.:�::.:::::x
Waining: Oivided flow computed fot this cross-sectio�.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
.. LATERAL STRUCTURE
RIVER: S[. Vrain River
REACH: I-25 to Junction R5: 70564
INPUT
Description:
Lateial structure positio� = Next ot left bank station
Distance from Upstream XS = 165
Deck/Roadway Width = 35
Weir Coef£icient = 2.63
Weii Flow Reference = Water Surface
Weir Embankment Coordinates �um = 5
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
..�+.+...:xxx.x.......::...:.xx.+.w.x...w++......+w...+...++..x.s......x.+..+..+
2430 4829.5 2�45 4828 2914 4828 3065 4828.5 3250 4820.�
Weir crest shape = Broad Crested
LATERAL STAUCTURE OUTPUT Piofile #100 year Lat S[zuct
#lFkSxfllkrt#i+k+t#RfxMkk#1Y4+i#T[##Y4kki#};#₹4R#x4k1k1x4iiYkifFifsif�f4xR
* E.G. US. (ft) � 4829.63 * Weir Sta US (fU * 2541.32 R
� W.S. US. (fU * 4829.14 * Weir Sta DS (ft) + 3076.28 *
* E.G. DS (ft) • .4828.16 * Weir Max Oepth (ft) • 0.67 *
* W.S. DS (ft) * 4827.81 ' Weir Avg Oepth (fU * 0.37 *
* Q US (cfs) *16297.50 k Weir Submerg * 0.28 *
* Q Leaving Total (Cfs) • 116.74 " Min E1 Weir Flow (£U * 4828.00 *
* Q DS (cfs) •16182.30 " Wr Top Wdth (ft) * 534.96 a
' Perc Q Leaving * 0.71 * Q Gate Group (cfs) * *
* Q Weir (cfs) * 116.74 * Gate Open Ht (ft) * •
* Q Gates (cfs) * • Gate #Open * i
� Q Culv (cfs) • t Gate Area (sq ft) * +
* 4 Lat RC (cfs) * • Gate Submerg * •
. ' Weir Flow Area (sq ft) * 196.42 k Gate InveYt (ft) * *
.. ta.*r��trwi.r.....ak.+ws.r�:.i++at��«����r.:.�+�w+�++a�a..��txx�.wr��ra�W
Page 41
STVRAIN.rep
LATERAL STAUCTURE OUTPUT Profile #S00 yeaY Lat SCLUCt
' .....�+....:......+x«.x,..:...+.....,......+..........+,.........«+....+:
* E.G. US. (ft) ' 4832.45 ' Weir Sta US (fU ' 2430.00 *
• W.S. US. (fU ' 4831.55 * Weir Sta DS (ft) * 3250.00 �
� E.G. �S (ftI ' 4830.42 ' Weir Max Depth (ft) ' �.97 '
� W.S. �S (ft) * 4829.88 R Weiz Avg Depth (ft) ` 2.44 •
* Q llS (cfs) '35138.6� + Weir Snbmerg * 0.82 '
• Q Leaving Total (cfs) ' 2ll0.48 * Min E1 Weir Flow (ft) * 4828.00 •
* Q DS (cfs) •33014.89 ' Wr Top Wdth (ft) ' 820.00 *
* PeYC Q Leaving ' 6.04 * Q Gate Gioup ICfs) * `
* Q WeiY (Cfs) ' 2110.48 * Gate Open Ht (fU ' *
* Q Gates (cfs) � * Gate qOpen ' *
* Q Culv (cfs) • • Gate Area (sq fU * *
• Q Lat RC (cEs) • * Gate Submezg ' •
' Weir Flow Area (sq fU ` 2003.15 ' Gate Invert (fU ' '
*�;..x.:::.:♦xxt..a.++:..::iax�t:.x+Fr��*+:iF:.Krtx,.�tt++»�:x.+:i�.ar�..:
LATERAL STRUCTUAE OUTPUT Profile N10 yeai Lat StYUCt
*s+»xx+x+x.+..++.+eix.+.++.+�+x�w�x�+*�xrw::.+�axx++:F.rr�xxw:.�Fr+Rrr.+:
* E.G. US. (ft) * 4826.86 * weir Sta US (fU ` '
* W.S. US. (ft) ' 487.6.59 k Weir Sta DS (ft) * '
* E.G. DS (ft) ' 4625.78 + Weir MaX Oepth (ft) ' *
* w.S. �S (ftl ' 4825.50 * Weir Av9 Depth (fU * *
* Q US (cfs) " 5950.00 * Weir Submerg ' *
* Q Leaving Total (cfs) * 0.00 * Min E1 Weir Flow (fU * 4828.00 `
* Q DS (cfs) ` 5950.00 * wr Top wdth (ft) * '
i Perc Q Leaving • 0.00 * Q Gate Group (c£s) ` * �
• 4 weir (cfs) • ' Gate open Ht IfU * �
t Q Gates (cfs) ' ` Gate �Open * *
* Q Culv (cfs) ' ' Gate Area (sq ft) ' *
' Q Lat RC (cfs) ' • Gate Submerg * *
• Weir F1ow Area (sq fU ' * Gate Invert (ft) • '
...:+.+...:::x.+..+........s.............:+.++.x«+.++..��.+:..::.+..++.x+
LATERAL STRUCTURE OUTPUT Profile #50 year La[ Struct
♦k14k1i441#w#if�*f4t1#+i+ttiikl#RFi+iARft44#*M£�ffF+*h#fifS1#rt+iiiliYnRR4
* e.G. US. IfU R 4828.89 * Weir Sta US (ft) * 2735.22 *
.� ' W.5. U5. (ft) • 4828.46 * Weir Sta DS (£t) ' 276�.68 •
� E.G. DS Ift) * 482�.53 + Weir Max Depth (ft) ' 0.03 ' �
� ' W.S. �5 (ftl ' 482�.21 ` Weix Avg Depth (ft) • 0.02 f
� ^ Q US (cfs) *12850.00 * Weir Suhmerg * 0.00 '
� Q Leaving Total (cfs) * 0.22 • Min E1 Weir Flow (ft) ' 4828.00 #
i Q DS (cfs) *12849.79 * Wr Top Wdth (ft1 * 32.45 '
* Perc Q Leaving � o.00 * Q Gate Group (cfs) * `
* Q Weir (cfsl * 0.22 * Gate open Ht (ft) ` *
t 4 Gates (cfs) * * Gate #Open * *
• 4 Culv Icfsl ' � Gate area (sq ft) * *
* Q Lat RC (cfs) * • Gate Submeig * '
• Weir Flow Area (sq fU * 0.56 * Ga[e Invert (ft) " *
•1TFY4*iYh�*hfttihi#f+x+tYkMiR�₹iI*f}{##+Rhi₹/xxii4#WxFitTi4x�ki##4tAfti+
CROSS SECTION
RIVER: SC. Vrain Rivez
AEACH: I-25 to Sunction RS: 70235
INPUT
Description:
Station Elevation Data num= 21
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
k*It#i+iM#Fkt#1a�ifFktthxtk+4YR1#i#Y1tliIAl4ikRl£tlxif##iYfRx+#4Y1hf44iwYftt#Y+1
2069 4829 2117 4827.2 2136.9 4821 2181 4817.4 2224.5 4817.4
2240.2 4819.3 2255.2 4820.8 2283 4826.3 2408 4823 2657 4823
2679 4825 2741 4825 3175 4825 3829 4827 3989 4827
� 4003 4825 4028 4825 4078 4827 4126 4829 4192 4831
4469 4833
Manning�s n Values num= 3
Sta n Val S[a n Val Sta n Val
i..�+..,.:::...:....:....:.R.:+..+.i..+..�w:.k+«
2069 .07 2117 .04 2283 .07
� Bank Sta: LeEt Right Lengths: Left Channel Right Coeff Contr. Expan.
Page 42
STVRAIN.rep
211"1 2283 800.5 494 504.5 .3 .5
Ineffective Floui num= 1
Sta L Sta R Elev Permanent
3068 4469 4843 F
CROSS SECTION OUTPUT Profile $100 year
xx�xx��,:+::�x.+.........::..,:..+,..x.x*.ta:..:.:.:�....�..�rk:�::,�f.+�r.+w«.r�x�t:w::.�::.x�.�.i
* E.G. Elev �ft) + 4828.98 * Element * Lef[ OB * Channel * Right OB *
' Vel Head (ftl 3 0.34 * Wt. n-Va1. * 0.0']0 + 0.040 * 0.0�0 '
t W.S. Elev (ft) ' 4828.65 * Reach Len. (ft) * 800.50 * 994.00 ' 504.50 *
* Crit w.S. (ft) � 4826.39 * Flow Area (sq ft) * 27.86 * 1428.43 * 3425.49 �
* E.G Slope (ft/ft) *0.001514 � Area (sq ft) � 27.86 * 1428.43 ` 6101.94 '
* Q Total (cfs) '16180.21 * Flow (Cfs) * 18.52 • 8607.29 * "/554.40 *
• Top Width (ftl * 2039.04 � Top Width (fU * 38.55 • 166.00 • 1834.49 *
+ Vel Total (ft/sl � 3.31 * Avg. Vel. (ft/s) + 0.66 * 6.03 • 2.21 t
* Max Chl Dpth (ftl * 11.25 * Hydr. Oepth (ft) * 0.72 * 8.60 * 4.36 `
* Conv. Total (cfs) �415836.0 * Conv. (cfs) * 4"/5.9 *221209.7 •194150.3 *
* Length Wtd. (ft) ' 500.44 * Wetted Per. (fU * 38.57 * 167.82 * "795.13 *
* Min Ch E1 (f[) + 4817.40 + Shear (16/sq fU • 0.07 * 0.80 � 0.41 *
* Alpha * 1.97 * Stream Power (lb/ft s) + 0.05 ' 4.85 * 0.91 *
* Frctn Loss (fU * 0.82 * Cum Volume (acre-fU * 27.15 * 109.45 ' 443.33 *
* C & E Loss (ft) • 0.00 * Cum SA (acres) * 5.42 * 10.12 * 113.49 *
:x..+:Kr�::::x:....�;.3.:.,..»..x��.����+t:,i:.+.r.�..+.:�.s�.+.�.a�:++i:.»+xit�t:.�:a��.w�r::::
Note: Multiple critical depths were found at [his location. The critical depth '.uith the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile p500 year
«.:�.xrr..++:::+:....tx�+:tt:t.rw:xx.x�+xe��.:r:+,::t:ti�::�x:.x+x�+;rxwa+a+a«t::rx.+.+.«...r�+.
+ E.G Elev (ft) i 4831.47 '� Element < Left OB " Channel * Right OB •
+ Vel Head (fU * 0.53 * Wt. n-Val- * 0.070 * 0.040 � 0.070 *
* W.S. Elev (fU " 4830.94 * Reach Len. (ft) * 800.50 * 494.00 � 504.50 *
* Crit W.S. (fU * 482"/.92 ' Flow Area Isq ft) * 136.29 ' 7809.22 5226.23 F
* E.G. Slope (ft/ft) *0.001898 ' Area (sq fU ' 136.29 * 1809.22 •10390.24 '
* Q Total (cfs) *31636.53 * Flow (cfs) * 246.02 *14288.60 °17101.91 *
' * Top Width (ft) � 2121.00 * Top 4lidth (ft) w 48.00 • 166.00 * 190�.00 *
• Vel To[al (ft/51 * 4.41 * Avg. Vel. (ft/s) + 1.81 ' 7.90 * 3.2'/ *
* Max Chl Dpth (ft) * 13.54 * Hydr. Depth (ft) • 2.84 * 10.90 3 6.66 •
* Conv. Total (cfs) *"126206.3 � Conv. (cEs) " 5647.3 *327990.2 *392568.8 *
* Length Wtd. (ft) * 504.23 * Wetted Per. (ft) * 49.9'/ • 167.82 * 785.13 �
* Min Ch E1 (ft) * 4817.40 * Shear (lb/sq ft) • 0.32 * 1.28 * 0.�9 •
* Alpha * 1.75 � Stream Power (lb/ft s) • 0.58 * 10.09 * 2.58 �
* Frctn Loss (ft) * 1.05 • Cum Volume (acre-ft) * 45.88 * 138.67 ' 788.62 *
• C 6 E Loss (ft) * 0.00 * Cum SA (acres) • 6.04 * 10.17 * 122.29 *
+�xx+Kx+.:�.«..+..t+ai�.3.+xR.+x.k+�.aaxt,::i�:....:a+xc.«i���a�i+���++�axxxrr,+*.:ix��.+tt:..r.
Warning: The cross-section end poincs had to he extended vertically for the computed water surface.
Warning: The energy loss was greater than I.o ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Mul[iple critical depths were found at this location. The ciitical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Pmfile #10 year
.+���.w..+��+......+tt�«a�.::..*.R.x�wFxwrt..::::::..x.r,xx.xx«rxr.x���t+�x:.r,x.nr,�r:..:ax++;:xxr•
* E.G. Elev (ft) + 4826.44 + Element * Left OH • CLannel * Right OB *
* Vel Nead (fC) T 0.20 * Wt. n-Val. • k 0.040 * 0.070 *
• W.5. Elev (ft) • 4826.25 • Reach Len. (ftl ' 800.50 * 494.00 * 504.50 *
' CYit W.S. (ft) * 4822.88 • Flow AZea (sq ft) ' * 1071.59 * 1542.00 '
* E.G. Slope (ft/ft) +0.001071 ` Area (sq ft) * * 1031.59 * 1985.20 *
* Q Total (cfs) k 5950.00 * Flow (cfsl * • 4267.27 * 1682.73 *
* Top Width (ft) = 1524.98 * Top Widih (fU * • 162.67 * 1362.37 *
* Vel Total (ft/s) * 2.31 • Avg. Vel. (ft/s) t * q.14 * 1.09 *
* Max Chl �pih (fU * B.85 * Hydr. Depth (ft) * * 6.34 '� 1.97 *
' Conv. Total (cfs) �181828.5 * Conv. (cfS) * *130405.2 * 51423.3 *
* Length Wtd. (fU * 496.86 t Wetted Per. (ft) t * 164.33 • 783.10 *
* Min Ch E1 (ft) * 4817.40 * Shear (lb/sq ft) * * 0.42 � 0.13 *
# Alpha i 2.36 * Stzeam Power (lb/ft s) t * 7.74 � 0.14 *
* FrCtn Loss (fL) • 0.64 * Cum Volume (acre-ft) * 13.31 * 80.44 • 738.24 *
* C & E Loss (ft) + 0.03 * Cum SA (acres) + 3.49 • 9.98 a 88.93
14Yk'.!klfi#4++i+ii4a�#ki414#i#+Yi###*i#M1Th1t1###k111Mt;1###+t*T#M4A+#Yi�##ihM#i#iifi4i#'.lf1f11:R1#Y
, Warning: �ivided flow compu[ed for this cross-section.
Page 43
STVRAIN.rep
j Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CAOSS SECTION OUTPUT Profile #50 year
w..::,:t:::::::...t.:F�.�.�.+.x:.+«at.x�x.r:.::��xx�:..:..::.:Fxi+.::...:t.r:r+:���{w��.,::,..t
* E.G. Elev �ftl � 4828.30 • Element ` Left OH R Channel * Right OB *
� Vel Head (ft) ' 0.29 * WL �n-Val. ' 0.070 " 0.040 * �.0�0 '
* W.5. E1ev (f[) � 4828.07 ' Reach Len. Ift) • 800.50 ' 494.00 * 504.50 *
* Cri[ W.S. (fU * 4825.92 3 Flow Area Isq ft) ' 8.B3 • 1323.62 * 2929.88 "
t E.G. 51ope (ft/fU `0.001391 � Area (sq ftl � 8.83 ' 1323.62 " 4948.52 *
i Q To[a1 (cfs) "12849.80 • Flow (cfs) • 3.84 " 7265.76 * 5580.20 '
* Top Wid[h (fU * 200�.05 ' Top Width IfU * 21.71 * 166.00 ^ 1819.34 t
k Vel Total (ft/s) " 3.01 * Avg. Vel. (ft/s) ' 0.43 ° 5.49 * 1.90 *
* Maz Chl Dpth (ft) � 10.61 * Hydr. �epth (fU ' 0.41 * 7.97 ' 3.�3 *
� Conv. Total (cfs) •344558.9 * Conv. (cfs) * 102.9 *194826.5 *149629.4 '
* Length Wtd. Ift) • 499.50 " Wetted Per. (ft) * 21 J2 * 167.82 * 785.13 •
• Min Ch E1 (fU * 4817.40 ' Shear (lb/sq ft) ' 0.04 * 0.68 ` 0.32 *
' Alpha * 2.05 * Stream Power (lb/ft s) ' 0.02 * 3 J6 ' 0.62 '
* Frctn Loss (ft) * 0.77 • Cum Volume (acre-ft) • 22.89 • 101.73 * 356.54 *
* C & E Loss (fU * 0.01 * Cum SA (acres) * 4.85 ' 10.10 * 111.35 *
.+:..x.......x..+xx.x.+:..++.a..+::,.+.+..xx.:+...+.+.+..+:..a+t..x.xx..+....xx..+.+..w+..«.ww.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CRO55 SECTION
RIVER: St. Vrain Aiver
AEACH: L-25 to JunCtion RS: 69�41
INPUT
Description:
Station Elevation Data num= 35
Sta Elev S[a Elev Sta Elev Sta Elev Sta Elev
J .x:x+:.:a.......xx..::a.+r+.xxx+x=....+,++..*+•::.,.+...x.s..a...x+x::....x.r...
2009 4828.4 2106 4825 2148 4816.45 2200 4816.45 2215 4819.45
2256 4825.65 2427 4824.�5 2b24 4823.85 2824 4B24.25 3024 4823.65
3771 4823.35 3194 4821.75 3227 4B23.55 3426 4825.05 3521 9822.85
3608 4823.05 3624 4824.15 3675 4B24.25 3689 4823.35 3710 9825.45
3826 4824.�5 3864 4824.85 3916 9828.45 3931 4826.05 3949 4824.85
3955 4824.85 3963 4828.55 4025 4830.65 4227 4832.35 4427 4833.75
4627 4834.05 4827 4834.25 5027 4634.65 5227 4836.65 5227.1 4836.65
Man�ing's n Values num= 3
Sta n Val Sta n Val Sta n Val
....x..x:..+...t..++.xx.x�..++..x+::...xxx:.....
2009 .0� 2106 .04 2256 .07
Bank Sta: Left Ri9ht Lengths: Left Channel Right Coeff Contr. Expan. �
2106 2256 268.5 448 455 .3 .5
IneEfective Flow num= 1
Sta L Sta R Elev Pezmanent
3270 522�.1 4843 P
CROSS SECTTON OUTPUT Profile #100 year
#1x*xlxx�4++4Y1+xFx£At+eliilftll4i11f1Fttt4#%tflFiixlYfTkiNki##Fhih##fi*4�xik##Y111Txx}i#1i111M
x E.G. Elev (fU • 4828.16 • Element * Left OB * Channel * Right OB *
• Vel Head (fU * 0.35 • Wt. n-Val. * 0.070 * 0.040 • 0.070 t
* W.S. Elev (ft) * 4827.81 * ReaCh Len. (ft) * 268.50 * 448.00 • 455.00 *
* Crit W.S. (fU * 4826.15 * Flow Area (sq ft) * 112.53 • 1251.62 • 3761.40 �
R E.G. Slope (ft/fU *0.001774 * Area (sq ft) • 112.53 � 1251.62 * 6022.89 ;
* q Total (cfs) '16182.30 • Flow (cfs) * 126.11 * 7998.40 * 8057.80 *
* Top Width (ft) " 1922.25 * Top width (ft) * 80.13 * 150.00 * 1692.12 *
* Vel Total (f[/s) ' 3.16 * Avg. Vel. (ft/s) " 1.12 • 6.39 * 2.14
* Max Chl �pth (ft) ' 11.36 * Hydr. Depth (ft) * 1.40 * 8.34 ' 3.71 {
* Conv. Total (cfs) "384220.2 * Conv. (cfs) k 2994.2 *189907.9 •191318.2
* Length Wtd. IfU " 450.19 * Wet[ed Per. (ftl " 80 18 * 151.62 � 1014.11 *
* Min Ch E1 Ift) ' 4816.45 • Shear (lb/sq ft) * 0.16 * 0.91 0.41
• Alpha " 2.26 • Stream Power (lb/ft s) " 0.17 ; 5.84 R �.80 i
! * Frctn Loss (ft) ' 0.85 R Cum Volume (acre-ft) " Z5.86 94.25 373.12
� • C s E Loss (ft) * 0.02 R Cum SA (acres) " 4.33 * 8.33 * 93.06 *
Page 44
. STVRAIN.rep
.+:.+.::x.....*w::«:.x.++�+��xrrr.r�xkr+i.:.:i+++r+rirxx�ti,rr�:w..«i++:.w..'fi.:.Rx:.�..i+.i��.r
i
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The cri[ical depth with [he lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Piofile p500 year
x�+.:..:...++.:..:...+::.r:wi:ait+.,.w.:+...k..��...t*:.,x.x.�r.i.::wxx.r.r*.t�xrxxww��.�w�xw»i..
* E.G. Elev (fU � 4830.41 * Element * Left OB i Channel � Right OB *
i Vel xead (f[) � 0.54 = wt. n-Val. t 0.0"10 * 0.040 * 0.070 �
* W.S. Elev (fU ` 4829.87 * Reach Len. (ft) + 268.50 * 448.00 * 455.00 �
* Crit W.S. (ft) * 4827.62 * Flow Area (sq ft) * 307.60 ' 1561.00 * 5852.78 *
* E.G. Slope (ft/ft) *0.002302 • Area (sq ft) • 307.60 " 1561.00 * 9564.50 *
" Q To[al (cfs) *33014.88 * Flow (cfs) * 669.18 *13166.64 "19179.05 '
* Top Width (ft) + 1993.01 * TOp Widih (ft) • 9'1.00 * 150.00 * ll46.01 *
' Vel To[al (ft/s) * 4.28 ' Avg. Vel. (ft/5) R 2.18 * 8.43 " 3.28 *
' Max Chl Dpth (fU * 13.42 * Hydr. Depth (ft) + 3.17 * 10.41 • 5.77 =
* Conv. Total (cfs) *688112.1 * Conv. (cfs) ^' 1394'1.5 *2"14425.6 *399739.1 *
" Leng[h W[d. (ft) * 449.10 * Wetted Per. (ft) * 98.53 a 151.62 * 1014.11 t �
* Min Ch E1 (ft) � 4816.45 ' Shear (lb/sq ft) * 0.45 * 1.48 * 0.83 *
* Alpha * 1.90 • Stream Power (lb/ft s) ' 0.98 + 12.48 * 2.72 *
* Frctn Loss (ftl * 1.08 * Cum Volume (acre-ft) * 41.80 * 119.56 * 6']3.06 *
* C & E Loss (ft) * 0.01 * Cum SA (acres) i 4.71 + 8.38 * 101.14 *
. +tit.x:.xx�.a:.++t.:.::xx..r:++iit+.tti...x»+x++..r.+�a.:s:,:xwwxirv�+*:��.:x�+++�+a�+.RxxR»�rr�
Warning: The cross-section end poin[s had to be extended vertically for the computed water surface-
Warning: The energy loss was greater than 1.0 ft (0.3 m� . between the current and previous cross
sectio�. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile k10 year
•.,t:.,..x.::::..+ta+.:,.wx.++i+tir�t::::::«:x:.+x.rx.r�t�a�:x:xr:»+«itrt�tt:rtkr.�.r�rrt�at+��r:ar
* E.G. Elev (fU * 9825.78 * Elemerlt ' Left OB * Channel " Right OB "'
* Vel Head (ft) * 0.28 t Wt. n-Val. • 0.0"10 * 0.040 • 0.070 *
,j� ^' W.S. Elev (ft) + 4825.50 ' Reach Lerl. (Et) • 268.50 * 448.00 * 455.00 �
* Crit W.S. (ft) + 4822.59 * Plow Area (sq ft) * 3.51 * 904.82 • 1418.78 '
* E.G. Slope (ft/fU •0.001583 * Area (sq ft) � 3.51 * 904.82 * 2174.5'/ 3
� Q Total (cfs) � 5950.00 * Flow (cfs) * 1.17 * 4420.28 • 1528.55 *
' Top Width (ft) * 1768.33 ' Top Width (fU * 14.15 * 148.98 * 1605.19 *
• Vel Total (ft/5) * 2.% � Avg. Vel. (ft/s) � 0.33 * 4.89 * 1.08 *
* Max Chl Opth (ftl * 9.05 * Hydr. Depth (ft) � 0.25 t 6.07 * 1.44 +
• Conv. Total (cfs) *149531."/ * Conv. (cfs) * 29.4 *111087.7 * 38414.6 *
* Length Wtd. (£t) * 449.34 • Wetted Per. (ft) * 14.16 * 150.fi0 * 984.88 *
* Min Ch E1 (ft) • 4816.45 * Shear (lb/sq ft) • 0.02 * 0.59 * 0.14 �
* Alpha * 2.76 • Stream Power Qb/ft s) * 0.01 * 2.90 * 0.15 *
• Frctn Loss (ft) * 0.83 * Nm Volume (acre-ft) • 13.28 • 69.46 '" 114.15 �
, " C & E Loss (f[) +� 0.05 + Cum SA (acres) • 3.36 * 8.21 * 71.74 *
+�x++:a....+.:...r:�ta..t.:.:+a.�n.F.,:.:,:::.+.R..+,rx.t�t.:+�:::..x.iw;t�:.::.:xxxwwxw��tYr*«x.r
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #50 yeaz
k##AA4+i#hitF�.!*#i#Y4i�.Y#i###41i1:�)�.Y4kih#f#�Yt44Flf'.!>1f#1TYiR*##4iAlfTlflli#4Y:+�1ihlfM1h1:4!>+YYlk41
* E.G. Elev (ft) i 4827.53 * Element * Left OB * Channel * Right OH •
* Vel Head (ft) * 0.32 w Wt. n-Val. * 0.070 • 0.040 * 0.070 �
* W.S. Elev (ft) * 482z 21 • Reach Len. (ft) * 268.50 * 448.00 + 455.00 *
* Crit W.S. (ft) * 4825.76 ' Flow Area (sq ft) R 69.52 • 1161.46 * 3151.91 *
" E.G. Slope (ft/fU *0.001699 � Area (sq ft) + 69.52 * 1161.46 * 5009.93 •
* Q Total (cfsl *12849 J9 * Flow (cfs) � 64.94 � 6911.10 * 5873.75 *
* Top Width (ft) + 1891.36 " Top Width (f[) * 62.98 * 150.�0 * 1678.38 *
+ Vel Total (ft/s) • 2.93 * Avg. vel. (ft/s) ` 0.93 ` 5.95 * 1.86 *
* Max Chl Dpth (ft) t 10 J6 * Hydr. �epth (ft) • 1.10 * 7.74 * 3.11 •
* Conv. Total (cfs) *311729.1 � Conv. (cfs) � 1575.4 '167659.6 *142494.1 *
* Length Wtd. (ft) * 450.25 * Wetted Per. (ft) * 63.02 * 151.62 • 1014.11 �
* Min Ch E1 (f[) � 4816.45 * Shear (16/sq ft) * 0.12 * 0.81 * 0.33 *
* Alpha � Z.qO + Stream Power (16/ft s) * 0.11 ` 4.84 > 0.61 *
� * Frctn Loss (ft) * 0.84 + Cum Volume (acre-fU * 22.17 * 9"1.64 * 29B.87 *
! * C & E Loss (Et) * 0.03 • Cum SA (aczes) + 4.08 � 8.31 • 91.10 *
Page 45
STVRAIN.rep
i R4#tfF'.l�tfff+�ttifftfth+l4#'R+ki#t1t114A+4}�kiiF++Y*ikktMlh+Y1:t'Rh1iAk₹4tt44fiRFi;i+ihff4l:Tl1+4[i
warning: Divided flow computed for [his cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
LATERAL STRUCTURE
RIVER: St. Vrain River
REACH: L25 to Junction RS: 69359
INPUT
Description:
Lateral structure position = Next ot left bank station
Distance from f7pstream xS = 290
Deck/Roadway Width = 25
Weiz Coefficient = 2.63
Weir Flow Reference = Water Sutface
Weir Embankment Coordinates num = 5
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
....++..xx..xx.+::..+++....x.:...+..xw+.+«.x+..+.++x:..+..+.x.x.:...x.:+..+..«..
3550 4828 3912 4827 3785 9826.4 4056 4826.3 4108 4827
Weir crest shape = Bioad Crested
LATERAL STRUCTORE OUTPUT Profile #100 year Lat Struct
•a++R:::.��:«+.awt.rwr:::r�+�xRrxx��*•r:Rt+.��rw+�F+arr:+:�atr�x..�++rxr+•
• E.G. OS. (ft) * 4827.59 * Weir Sta US (ft) R 3736.33 *
' W.S. US- (fU * 4827.20 * Weir Sta DS (ft) ` 3930.29 *
* E.G. �5 (fU * 4826.43 * Weir Max �epth (fU * 0.29 *
* 4I.S. DS (fU ' 4825.93 * Weir Avg Depth (ft) • 0.14 '
' Q US (cfs) "16182.30 ' Weir Su6merg * 0.00 *
* Q Leaving Total (cfs) • 31.21 * Min E1 Weir Flow (ft) � 4826.30 �
t * Q �S (cfs) *16151.43 * Wr Top Wdth (ft) * 193.96 "
' Perc Q Leaving o.19 • 4 Gate Group (cfs)
* Q Weir (cfs) ' 31.21 * Gate Open H[ (Et) * '
' 4 Gates (cfsl 3 * Gate #open * `
* Q Culv (cfs) � ' * Gate Area (sq ft) * '
� * Q Lat RC (cfs) * • Gate Submez9 * '
* Weir F1ow Area (sq fU ' 27."]5 * Gate Invert (ft) ' *
i4f#kh'Rtftt#4iiRIRl:f+ii+tltk#iiinilT44#i*fi4Y1f1:Rtk4kFf:tf4*fi'RRA�.tkt#iltti
LATERAL STRUCTUAE OUTPUT Profile #500 yeaz Lat StruCt
*x�*x+�:tt+rR.�r:x+x::r.r.xat++++x:++t++��;.+.r»aw*+«:..+.ixwxw++++i�r,:t+x
* E.G. US. (ft) * 4829.70 * Weir Sta US (ft) * 3550.00 *
+ W.S. [1S. (ft) ' 4829.14 " 47eir Sta DS (fU * 4108.00 *
* E.G. DS (f[) ' 4828.36 * Weir Max Depth (fU * 2.16 *
+ W.S. DS (fU • 4827.85 ' Weir Avg Depth (ft) • 1.72 `
* Q US (cfs) *33014.88 * Weir Submer9 ' 0.00 '
• Q Leaving Total (Cfs) *. 3338.53 ' Min E1 Weir Plow (ft) * 4826.30 ;
* Q DS (cfs) *29679.14 " Wr Top Wdth (ft) * 558.00
" Perc Q Leaving * 10.10 * Q Gate Group lcfs) ` `
+ Q Weir (cfs) �" 3338.53 • Gate Open Ht (ft) * '
* Q Gates (cfs) * * Gate #Open * ' .
* 4 Culv (cfs) * * Gate Area (sq fU * *
Q Lat RC (cfs) * ' Gate Submerg " �
* Weir Flow Area (sq ft) * 95�.20 * Gate Invert (Et) * '
.«ax+.....x++.x...»..+.+..xx+.+.x..+++.x.:.�xx.w...:+....x:«++.»:.:++...:
LATERAL STRUCTURE OUTPUT PYofile #10 yeai Lat S[YllCt
��xxr++.+:aF{Fx.riz+Fi.���+�.ax�++i��+iix���+irxxt��+::rtir,�+r+�xrr:.+t+ww
+ E.G. OS. (fU • 4825.21 * Weir Sta US (ft) * '
r W.5. US. (fU * 4824.81 * Weir Sta DS (ft) * "
* E.G. �S (ftl ` 4824.04 �` Weir Max Depth (ft) * *
+ W.5. DS (ft) " 4823.54 * WeiY Avg Depth (Et) * `
R p US (cfs) * 5950.00 * Weir Submerg * '
R Q Leaving Total (cfs) * 0.00 • Min E1 Weir Flow (ft) * 4826.30 `
* Q �S (cfs) * 5950.00 • Wr Top Wdth (fU ` *
* Perc Q Leaving * 0.00 • Q Gate Group (cfsl `
• Q Weir (cfs) ' ` Gate Open Ht (ft) �
• p Gates (cfs) ' ' Gate qOpen '
Page 46
STVRAIN.rep
. • p Culv (cfsl * * Gate Area (sq fU * '
+ Q Lat RC (cfs) * * Gate Submerg * *
* Weir Flow Area (sq fU * + Gate Invert (ft) • *
3.::.«::.::,w,xx..::,:t�.a+:.x�.wx.+...x«txxx�+Kxt�r++..+��ikw��is:::,:�.
LATERAL STRUCTURE OUTPUT PTofile q50 yeae Lat StiuCt
�.:i+F.+«..:.....:......:...�x+:.«t..�k.xs.+.+..a+.++rrk.x+:k�.i..:.:.:..
* E.G. US. (ft) * 4826.9� * Weir Sta US (fU � •
t W.S. US. (fU ' 4826.58 * Weir S[a DS (fU • *
F E.G. DS (ftl * 4825.82 + WeiY Max �epth (ft) ' *
* W.S. �S (ft) � 4825.34 • Weir Avg Depth (fU * *
" Q US (cfs) *12849 J9 ' Weir Submerg * �
• Q Leaving Total (cfs) � 0.00 * Min E1 Weir Flow (ft) * 4826.30 *
* Q DS (cfs) *12849.�9 � Wr Top Wdth (ft) • *
' Perc Q Leaving � 0.00 * Q Gate Group (cfs) * '
+ Q Weir (cfsl " * Gate Open Ht (ft) * *
F Q Ga[es (cfs) * t Gate $Open * �
* Q Culv (cfs) * + Gate Area (sq ft) � *
• Q La[ RC (cfsl * * Gate Submerg * *
* Weir Flow Area (sq ft) • • Gate Invert (fU * *
+.+F+t�,+.::..:+.�kk..tx.::.:...:+.:.:.....t:�:x+:...::x.rwwx*>RKx.xi.w�x
CROSS SECTION
RIVER� St. Vrain River
REACH: I-25 to dunctio� RS: 69293
INPUT
DesCription:
Station Elevation Data num= 20
Sta Elev S[a F.IPv Sta Slev Sta Elev Sta Elev
.���t�3.�x�:,.i:..�aar«xF.+�:.�::.:+.+i.+::.��ti��ir��+sx:::ix:�.:::,.+,.+.�+.+.
2030.5 4827.2 2089 4824 2109 4815.6 2163 4815.7 2163 4818.2
2219 4820 2229 4825 30�4 4823 3254 4823 3622 4825
36�1 482� 3696 4829 3768 4829 3805 4827 3820 4825
3844 4825 3860 4829 3966 4831 4302 4831 47�7 4833
Manning's n values num= 3
Sta n Val Sta n Val Sta n Val
:.:.:x+«........+:++....+....x.+:.x:,:..:::...x. .
2030.5 .07 2089 .04 2229 .07
Bank Sta: Left Right Lengths: Left Channel Right Cceff Contr. Expan.
2089 2229 268.5 449 455 .3 .5
Ineffec[ive Flow num= 1
Sta L Sta R Elev Permanent �
344] 4�]� 4B43 F
CROSS SECTION OUTPUT Profile q100 year
+w..x.::.�._.�:..:�.a.�..a::..k:.i::,....::�.�:t::si.,::.�.xr�++»x.�xx.+<tw+.���:+iti:::::�.:.:
* E.G. Elev (fU " 4827.29 • Element ' Left OH t Channel • Right O8 w
* Vel Head (ft) * 0.42 ' Wt_ n-Val. * 0.0�0 * 0.040 ' 0.�70 *
• W.S. Elev (ft) * 4826.87 ' Reach Len. (ft) * 268.50 ' 449.00 ' 455.00 *
* Crit W.S. (fU * 4825.63 * Flow Area (sq ft) * 75.09 * 1225.56 * 3�62.83 *
' E.G. Slope Ift/£U *0.002020 * Area (sq ft) • �5.09 * 1225.56 + 4280.13 *
* Q Total �cfs) •16182.30 * Flow (cfs) * 90.98 * 8475.56 a 7615.77 *
* Top Width (ft) * 1696.58 * Top Width (ft) * 52.39 * 190.00 * 1484.18 '
• Vel To[al (ft/s) * 3.20 * Avg. Vel. (ft/s) * 1.21 * 6.92 * 2.02 *
• Max Chl Dpth (fU * 71.27 * Hydr. Depth (ft) * 1.43 i 8.75 * 3.09 •
• Conv. Total (cfs) •36�0ll.0 ' Conv. (cfs) * 2029.0 r188557.4 *169429.6 *
R Length Wtd. (ft) * a51.06 • Wetted Per. (fU * 52.47 * 145.40 * 1218.01 *
� Min Ch E1 (ft) * 4815.60 * Shear Qb/sq £t) * 0.18 + 1.06 * 0.39 *
* Alpha � 2.64 t Siream Power (lb/ft s) * 0.22 * 7.35 * 0.79 *
* Frctn Loss (ft) � 0.94 * Cum Volume (acre-fU ^ 25.28 • 81.51 * 319.31 *
' C 6 E Loss (ft) + 0.03 ' Cum SA (acies) � 3.92 * 6.84 * 76.48 '
•x.r+w.xawy+a���i�xk.�iR.+ait�+�iF+ia:�++��+���+��tkx�:�x++a+�++�.ai+�i�++�xirtxx.�.�.�.��+«x+:�
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
.' CROSS SECTION OUTPOT Profile #500 yeaT
Page 47
STVRAIN.rep
+ rxRR..«iii.�+.:..,+r+x:..«xiriiRrrwx+r�:..:tFxwxx.t.s.+�xxaa�*��rxrwR�a:r+a�i+.�ttty++ttrt.�w+w �
, * E.G. Elev (ftl ' 4829.31 * Element Left OB + Channel * Right oB *
• Vel Head (fi) � 0.58 ` W[. n-Val. • 0.0�0 * 0.040 • 0.070 *
F W.S. Elev (fU * 4828.�4 ' Reach Len. (EC) * 268.50 • 449.00 � 455.00 '
' Cri[ w.S. (ft) ` 4827.04 * Flow Area (sq fU ' 183.49 * 1487.30 ' 6040.04 •
* E.G. Slope (ft/ft) *0.002537 ' Area (sq fU ' 183.44 ' 148�.30 ' �ll6.41 *
* Q Total (cfs) �32305.91 � Flow (cfs) * 412.60 *13113.44 i18��9.88 *
• Top Width (ft) • 1�48.25 ' Top Width (ft) * 5H.50 * 140.00 * 1549.�5 *
� ve1 Total (ft/sl � 4.19 + Avg. Vel. (ft/s) * 2.25 * 8.82 ' 3.11 �
* Max Chl Dpth (fU i 13.14 * Hydr. Oepth (ft) * 3.14 * 10.62 ' 4.96 *
* Conv. TOtal (Cfs) *641386.9 ' Conv. (Cfs) ' 6191.5 *260348.3 •372847.1 *
* Length Wtd. (ft) ' 450.95 " wet[ed Per. (ft) * 60.12 ' 195.40 * 1218.01 +
* Min Ch E1 (ft) * 4815.60 * Shear (lb/sq ft) i 0.48 * 1.62 * 0.79 *
* Alpha a 2.12 3 Stream Power (lb/ft s) * 1.09 " 14.28 * 2.44 *
* Frctn Loss (ft) * 1.04 ' Cum Volume (acie-£t) � 40.29 * 103.69 * 585.94 *
* C 6 E Loss (ft) * 0.04 � Cum SA (acres) * 4.23 * 6.89 * 83.93 *
i1*hf�*kkYiYt4f+ttff#iiiR}FMtt}4#iR4{iiitiififYKlRii+#1k*1#*4i14#41i4i#x�MiMAAk1�#1!hlFlFxk4+*•
Warning: Divided flow computed for this cross-section.
Warning: The cross-section end points had to be extended veztically for the computed water surface.
Warning: The energy loss was greater than 1.o ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CAOSS SECTION OUTP➢T Profile #10 yeaY
+x,�s.xrxxxx+w.:.xrt+x�Rr�.RarRxrx+:s:t.a+:ii�r.�r«xw��x�t+ta+���r�ax+xxr:x+::.�::i;+:+xw�.r.x+
* E.G. Elev (ft) * 4824.90 * Element * Left OB * Channel * Right OB *
* Vel Head (fU * 0.46 • Wt. n-Val. * 0.070 ' 0.040 • 0.070 •
' W.S. Elev (ft) ^ 4824.44 ' Reach Len. (ft) ' 268.50 * 449.00 • 455.00 *
' Crit W.S. (ftI * 4821.74 * Flow „rea (sq ft) * 1.77 • 666.19 * 8�3.90 *
* E.G. Slope (ft/fU *0.002172 * Area (sq ft) * 1.7� * B86.19 * 687.97 '
* Q Total (cfs) * 5950.00 * Flow (cfsl ' 0.64 • 5149.10 * 800.26 t
* Top width (tt) * 1200.25 R Top Width (ft) * 8.04 * 138.88 * 1053.32 *
* Vel Total (£t/s) * 3.38 ; Avg. Vel. (ft/s) * 0.36 # 5.81 * 0.92 *
A * Max Chl Dpth Ift) ' 8.84 * Hydr. Depth (ft) * o.Zz ` 6.38 * 0.89 *
1 " Conv. Total (cfs) *12�660.9 * Conv. (cfs) * 13.7 *110477.1 * 17170.2 �
' � Lengih Wtd. (ft) ' 449.70 * Wetted Per. (ft) ' 8.05 ' 144.15 t 981.38 *
* Min Ch E1 (ft) ` 4815.60 * SheaY (lb/Sq ft) • 0.03 ' O.B3 * 0.12 *
� * Alpha * 2.57 ' Stream Power (lb/ft s) * 0.01 ' 4.84 * �.11 *
* Frctn Loss (ft) • 0.95 � Cnm Volume (acre-ft) ` 13.26 • 60.25 * 98.16 *
* C & E Loss (ft) ' 0.01 * Cum SA (acres) � ` 3.29 ' 6.73 * 57.86 *
:.x++:i,«xxrwr:xrKwrr+�x�.:aie++r�r.�.::ai�+w*�++xxrix�w.++a.�+w�rxw:::*.:�«t���.rr��xr�.xw:.t.
warning: Divided flow computed for Ghis cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used. �
CROSS SECTION OOTPUT Profile #50 year
......+.+.....+.++.«...,:..:...........:::...:..:.:::::..:w+x..::.:::.:....:.:.»..xx.xx::.:..:.
* E.G. Elev (ftI " 4826.66 * Element * Left OH " Channel * Ri9ht OB +
* Vel Head (ft) ' 0.42 * Wt. n-Val. * 0.070 ' 0.040 � 0.070 *
• W.S. Elev (ft) * 4826.24 + ReaCh Len. (ft) * 268.50 r 449.00 * 455.00 '
* Crit W.S. (ft) * 4825.26 * Flow Area (sq ft) * 45.�9 + 1137.65 ' 2998.02 *
� E.G. Slope (ft/ft) *0.002053 ' Area (sq ft� * 45.79 * 1137.65 R 3355.26 •
* Q Total (cfs) *12849.79 * Flow (cfs) � 47.92 * 7546.11 t 5256.26 *
* Tap Width (ft) * 1642.49 ' Top Width (£t) * 40.92 • 140.00 • 1461.58 *
* vel Total (Et/s) • 3.07 * Avg. Vel. (ft/s) * 1.04 * 6.63 ' 1 JS *
+ Max Chl �p[h (ft) * 10.64 * Hydr. Depth (fU * 1.12 * 8.13 ' 2.46 •
* Conv. Total (cfs) *283621.9 " Conv. (cfs) * 1046.7 *166558.5 �116016.7 •
* Length Wtd. (ft) * 450.94 • Wetted Pei. (ft) • 40.98 ' 145.40 R 1218.01 *
• Min Ch El (ft) ' 4815.60 ` Shear Qb/sq ft) * 0.14 � 1.00 * 0.32 *
* Alpha * 2.87 • Stream Power (lb/ft s) * 0.15 ` 6.65 * 0.55 *
* Frctn Loss (fU ' 0.93 " Cum Volume (acre-ft) * 21.82 ` 75.82 k 255.18 *
* C & E Loss (ft) • 0.02 ' Cum SA (acres) * 3.76 ^ 6.81 • 74.70 *
1i4k111ffR11£11FthI*F#iFM111k#}#i�4#f#AAffYifftAk141fR*!*t+#Y##xx�litT#*FYlMfxlFxkhf#i*#Y1l�i�!
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth wiCh the lowest,
valid,
energy was used.
Page 48
STVRAIN.rep
CROSS SECTION
RIVER: St. Vrain River
REACN: I-25 to Sunction RS: 68844
INPOT
Description:
Station Elevation oata num= 28
..:..�.x..xxE.e+..:.:5.•.x:.E:ex.....S.:k..�E+:.«.�+�+::::xxE.ea.:..�s»a:...E.r•
2052 4826 2071 4823 2099 4814.75 21�2 4814.85 2202 4823.05
2400 4823.45 2602 9822.35 2802 4822.55 2843 4822.75 3000 4B23.25
3200 4821.75 3234 4822.25 3248 4821.25 3295 4823.05 3402 4825.25
3601 4824.35 3656 482�.25 36�4 4828.05 3690 4823.65 3706 4823.65
3732 4828.05 3�56 4827.55 3801 4829.15 4001 4830.45 4200 4831.35
4401 4832.15 4601 4832.�5 4802 4833.25
Manning's n Values num= 3
Sta n Val S[a n Val Sta n Val
+x.�..a.«.w+..::..x,:...xxa+.:...+...:..........
2052 .07 2071 .04 2202 .07
Bank Sta: Left Right Lengths: Left Channel Right Cceff Contr. E�cpan.
20�7 2202 341.5 610 576 .1 .3
Blocked obstnctions num= 2
Sta L Sta R Elev Sta L S[a R Elev
�w�::.:..�ai�r.���::.�+.+�.t:r.xr:::t.....+.x�+:
2316 2773 4819.9 2859 3523 4821.57
CROSS SECTION OUTPUT Profile #100 year
s.«.++:.::.w...:...x..:.::..:.a.:.««.+.....:.....s.:.....xx::..x+x..+....xx.+.:.::.......,..+..
' E.G. Elev (ft) * 4826.32 * Element • Left O8 * Channel * Right OH �
� Vel Head (ft) * 0.50 * Wt. o-Val. • 0.070 � 0.040 * 0.070 •
' W.S. Elev (ft) + 4825.82 * Reach Len. (ft) * 34L 50 * 610.00 * 556.00 '
* Crit W.S. (ftl � * Flow Area (sq fU ' 25.11 • 1204.48 t 3820.08 •
t E.G. Slope (ft/ft) *0.002143 * Area (sq ft1 * 25.11 a 1204.48 � 3820.08 *
, * Q Total (cfs) *16151.43 * Flow (Cfs) * 30.75 * 8987.09 ' �133.59 *
� • Top Width (ft) * 1612.31 * Top Wid[h (ft) * 1�.83 * 131.00 ' 1463.48 *
* Vel Tota1 (ft/5) + 3.20 * Avg. Vel. (ft/s) * 1.22 * 7.g6 • 1.8� *
* Max Chl Opth (fU • 11.07 + Hydr. �epth (ft) ' 1.41 * 9.19 * 2.61 •
* Conv. Total (cfs) �348868.5 * Conv. (cfs) * 664.1 *194119.9 x154084.5 *
' Leng[h Wtd. (ft) * 570.97 * Wetted Per. (fU * 10.06 * 133.29 • 1964.08 •
• Min Ch E1 (ft) • 4814.75 • Shear (lb/sq ft) • 0.19 * 1.21 � 0.35 *
* Alpha * 3.18 * Stream Power (lb/Et s) * 0.23 * 9.02 * 0.65 *
* FrCtR Loss (ft) * 1.19 • Cum Volume (acre-ft) * 24.97 * 68.99 * 277.01 *
" C & E Loss (ft) " 0.02 Cum SA • . + .
:..:...:.: ..::,...:_.:......:,...++......::(a+reslw:::.�+++:x:xx3.70{*xx+... 4:xr.::R61.08xx.
Warning: Divided flow computed for this cross-section.
Warning: The energy loss was greater than 1.0 f[ (0.3 m) . between [he current and pcevious cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPllT Profile #500 year
ra+.:�xr�+�::..r++t::�..a<..++..+�......xx�::::...x.+:.::.ry+r�xxxxx�t��xx+ti:�xx�++*+rr�x�+�.+
' E.G. Elev (ft) * 4828.24 * Element • Left OB " Channel � Right OB •
• Vel Head (ft) " 0.50 ' Wt. n-Val. * 0.070 * 0.040 � 0.070 x
* W.S. Elev (ft) • 4827.79 * Reach Len. (ft7 ` 341.50 • 610.00 * 556.00 *
' Ciit W.S. (ft) • ' Flow Area lsq ft) * 61.48 � 1455.99 * 6684.13 *
• E.G. Slope (ft/ft) +0.0020�9 * Area (sq ft) * 61.48 * 1455-99 = 6684.13 *
* Q Total (cfs) *29679.1a • Flow (cfs) � 121.89 *12141.03 *17416.22 *
* Top Width (ft) • 1684.10 � Top Width (ft) � 19.00 • 171.00 * 1534.10 rt
* vel Total (ft/s) * 3.62 * Avg. Vel. (ft/s) * 1.98 * 8.34 * 2.61 *
' Max Chl Dpth (ft) * 12.99 * Hydr. Dep[h (ft) * 3.24 * 11.11 * 4.36 *
* Conv. Total (cfs) '650923.6 * Conv. (cfs) � 2673.3 •266277.4 *3819�3.0 *
* Length Wtd. (ft) * 563.58 r Wet[ed Per. (ft) * 20.97 * 133.29 � 1535.18 *
* Min Ch E1 (f[) � 4814.75 • Shear (lb/sq fU + 0.38 * 1.42 * 0.57 t
" Alpha � 2.4g R Stream Power (lb/ft s) * 0.75 * 11.82 * 1.47 *
• Frctn Loss (ft) � 1.08 * Cum Volume (acre-ft) * 39.53 a 88.�2 ' 573.87 w
" C & E Loss (ft) • 0.03 • Cum SA (acres) * 3.99 * 5.49 ' 6�.82 *
ifkt#tFxhliRkf!#1YAAx1x4YktT1#Ii#i4t£*xxfi#41#x1IiR#}1lftf141k#W#1#i114kif1+f#**11hin�Alil144�f
Warning: Divided flow computed for this cross-section.
/ Warning: The cross-section end points had to be extended vertically for the computed water surface.
Page 49
STVFL4IN.rep
Warning: The energy loss was greater than 1.0 f[ (0.3 m) . between [he current and previous cross
- ' section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile $10 year
...::..x+x.x+x....x...+..::.........+x,.:.�x+�.xx..:......,:::.:,...«....w+++....x......+......
' E.G. Elev (ft) ' 4823.93 ' Element ' Left OB + Channel t Right OB *
* Vel Head (Et) • 0.50 * Wt. n-Val. * 0.070 ' 0.040 ' 0.070 •
* W.S. Elev (fU ' 4823.43 * Reach Len. (fU * 341.50 * 610.00 * 5%.00 R
* Cri[ W.S. (ft) • * Flow Area (sq ft) * 0.58 '" 891.57 * 755.06 *
� E.G. Slope (ft/ft) *0.002066 * Area (sq ft) • 0.58 * 891.57 * 755.06 "
* Q To[al (cfs) ' 5950.00 * Flow (cfs) • 0.20 ^ 5344.23 * 605.57 *
* Top Widih (ft) 1229.50 " Top Width (ft) * 2.71 * 131.00 " 1095 J9 *
� Vel Total (ft/s) * 3.61 * Avg. Vel. (ft/s) * 0.34 • 5.99 * 0.80 *
* Max Chl Dpth (ft) * 8.68 * Hydr. Depth (fU ' �.21 * 6.81 * 0.69 •
• Co�v. Total (cfs) *130905.3 ' Conv. (cfs) • 4.3 *117577.9 * 13323.0 '
* Le�gth Wtd. (ft) * 590.40 • wetted Per. (ft) * 2.'14 ' 133.29 * 1095.86 '
* Min Ch E1 (ft) * 4814.75 * Shear (lb/sq ft) * 0.03 * 0.86 * 0.09 •
* Alpha '* 2.48 * Stream Power (lb/ft s) * 0.01 * 5.1"/ � 0.07 �
* Fmtn Loss (fU * 1.09 * Cum Volume (acre-fU * 13.26 * 51.09 * 89.5"7 *
* C fi E Loss (f[) * 0.03 * Cum SA (aCies) ' 3.26 ' 5.34 ' 46.64 *
YtRtf}}f�#£!£t+t+*ii##F4Yi�k�.ltMt1f4411iiR1�lii#+RRt11+f'.l�.lFF44F+iFf£fFti14#iA�.!}'Fi+#iiiM+ff�.lfttflk
Warning: Divided flow computed for this cross-section. .
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Pmfile p50 year
*#ti4i4+kF[+ii�.lfi!##tii4#lihkR'I'T1ftt+ifl'F1:'.lt4411iift4fi'f#�.ltfi4lh4YAttti141k'.lFRt'kf'kliflti#i4itihht
* E.G. Elev (ft) * 4825.72 • Element * Left OH * Channel � Right OB *
' Vel Nead (ft) * 0.48 * Wt. n-Val. • 0.0�0 • 0.040 " 0.070 *
• W.S. Elev (ft) ' 4825.23 • Reach Len. (ft) " 341.50 * 610.00 * 556.00 '
• Cri[ W.S. (ftl * * Flow Area (sq fU * 15.79 * ll28.11 * 2971.75 �
* E.G. Slope (ft/ft) *0.002053 ' Area (sq ft) ' 15.79 * 1728.11 ' 2971.75 +
t Q Total (Cf9) '12849."/9 ' Flow (Cfs) ' 16.21 * 7885."/3 ' 4947.85
� Top Width (ft) ' 1587.39 * Tap Width (ft) ' 14.14 * 131.00 * 1442.24 '
� Vel Total (ft/s) * 3.12 ' Avg. Vel. (ft/s) ' 1.03 * 6.99 * 1.66 *
• Max Chl �pth (ft) * 10.48 * Hydr. �epth (ft) * 1.12 * 8.61 • 2.06 i
,f • Conv. Total (cfs) �283607.3 ' Conv. (cfs) ' 357.� ^174042.0 *109201.6 '
� * Length Wtd. (ft) ' 574.29 ' Wetted PeY. (ft) * 14.32 * 133.29 * 1442.71
* Min Ch E1 (ft) �` 4814.�5 " Shear (lb/sq ft) � 0.14 * 1.08 * 0.26 •
* Alpha * 3.19 " Siream Power Qb/ft s) .* 0.15 Y 7.SB 4 0.44 f .
� Frctn Loss (fU * 1.1� * Cum Volume (acie-£U * 27.63 64.14 222.14
t C & E Loss (fU * 0.01 • Cum SA (acres) "' 3.59 * 5.42 * 59.53 '
Yifi'tiif+kfi#*i*'.!liT1}YY#hRfi1111i1'.lffiktiiff##I11FiiYiF4At!#1IAFfi1#4MARR#i/�.!'.lffti₹##'klh�4iklti
warning: Divided flow computed for [his cross-section.
Warning: The energy loss was greater Chan 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: St. Vrain Rivei
REACH: L25 to SURCtion RS: 68234
INPUT
Description:
Station Elevation Data num= 16
Sta Elev Sta Elev S[a Elev Sta Elev Sta Elev
.x:.++...+xxx++..+�x.•+.+.xx..:....«.:.......r.x+a+a....++..«....x+++•++.xx�•++++
1000 4829 1035 4820 1184 4820 1196 4814 1272 4814
1285 4820 2242 4823 2586 4B23 2760 4825 2785 4027
2802 4825 2827 4925 2873 4829 3324 4831 3553 4833
4674 4833
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
f4#YY11Fkk##i11h##tfii*A*I1ii!!*YYff11tt11f!#11R
1000 .07 1184 -04 1285 .07
eank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E�cpan.
1184 1285 341.5 610 556 .1 .3
r CROSS SECTION OUTPUT Profile q700 year
Pa9e SO
STVAAIN.rep
.�.::+a.:w.x�:=�.:::.«�+,`..R+.w.i..+r+x�w��xxx�+taa++w+++:...i+�.::.w�r�+yr,+x�w+zxxw.x�ar+�w...x
.� * E.G. Elev (fU * 4825.12 i Element • Left OH * Channel * Right OB *
* Vel Head (ft) * 0.45 * Wt. n-Val. * 0.070 * 0.040 ' 0.070 *
* W.S. Elev (EU * 4824.67 • Reach Len. (fU ' 341.50 * 610.00 " 556.00 •
� Crit w.S. Ift) * + Flow Area (sq fU * 737.57 * 1002.27 * 3�23.�3 *
* E.G. Slope (ft/f[) "0.002019 * Area (sq ft) * "13"1.5"1 * 1002.27 + 3723.73 •
' Q Total (cfs) *16151.43 ' Flow (cfs) * 1989.34 * 7589.64 * 6673.45 *
* Too Width (ft) ' 1714.09 * Top Width (f[) * 16"/.15 * 101.00 " 1445.94 •
* Vel Total (ft/s) * 2.96 + Avg. Vel. (ft/S) * 2.56 + 7.57 * 1.79 '
• Max Chl Dpth (ft) • 70.67 * Hydr. Depth (ft) * 9.41 * 9.92 * 2.58 '
* Conv. Total (cfs) *359431.8 * Conv. (cfs) ' 42022.8 *168898.8 •148510.2 *
* Length Wtd. (f[) * 55"1.66 * Wetted Per. (ft) � 167.74 �' 103.73 * 1445.96 *
+ Min Ch E1 (ft) * 4814.00 * Shear (lb/sq ft) * 0.55 * 1.22 '" 0.32 '
k Alpha * 3.32 * Stream Power (lb/ft s) � 1.42 " 9.22 * 0.58 k
* Frctn Loss Ift) * 1.13 * Cum volume (acre-ft) { 21.98 * 53.54 * 228.eb *
* C & E Loss (ft) � 0.03 * Cum SA (acres) � * 2.98 * 3.82 * 42.51 *
+xr:+xrrr..+at:�+��i�xr�r.wrcxr.w+w+r�x�ira�+�r,r+�wxr�xw�xxRtxwwrrw�xrtri+w+t�t�axrx��+ii;�+�rt
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between [he current and ptevious cross
section. This may indicate the need for additional ¢oss sections. �
CROSS SECTION OOTPUT Profile #500 yeai
+i+h*MMMM*41#+d1RFvlFA#hk'R1'.lR�.!'.lMf'.l1:Afkh#Mh'k+h#'kk4+Wf£'.!h}kM#1tRhf:fl:4RfA+'.!*h'.lh11111f1�1#ii114##+it#
* E.G. Elev (ft) * 4827.13 * Element * Left OH * Channel * Right OH *
' Vel Head (fU * 0.40 • Wt. n-Val. * 0.070 * 0.040 * 0.070 R
* W.S. Elev (ft) * 4826.�3 * Aeach Len. (ft) ' 341.50 * 610.00 * 556.00 *
• Ciit w.S. (ftl * " Flow Area (sq ft) * 1091.44 * 1211.07 * 6860.42 �
* E.G. Slope (ft/ft) *0.001766 * Area (sq ft) * 1091.44 ` 1211.07 + 6060.42 *
* Q Total (cfs) •29679.14 • Flow (cfs) • 3286.09 * 9730.32 *16662."73 *
` Top Width (ft) * 1832.52 * Top Width (ft) * 175.19 ' 101.00 • 1556.34 '
* Vel To[al Ift/s) * 3.24 * Avg. Vel. (ft/s) • 3.01 * 8.03 * 2.43 *
' Max Chl �pth (ft) ' 12.73 * Hydr. Depth (ft) * 6.23 * 11.99 * 4.4i '
* Conv. Total (cfs) *706201.8 * Conv. (cfs) ' 78191.0 •231528.5 *396482.3 *
F Length Wtd. (fU ' 552.73 � Wetted Per. (f[) * 176.04 * 103.73 ' 1556.60 *
* Min Ch E1 (ft) * 4814.00 t Shear (lb/sq ft) * 0.68 * 1.29 * 0.49 •
i Alpha * 2.43 ` Stream Power (lb/ft s) * 2.06 ' 10.34 • 1.18 *
t Frctn Loss Ift) ' 0.97 ' Cum Volume (acre-ft) * 35.02 * 70.04 * 427.42 •
� ' C & E Loss (fU • 0.02 ` Cum SA (acres) ' 3.23 ` 3.87 * 48.10 '
.+�t+t::.:x..+wxx.t���t�ai.+�+.wr�++wa+.y.+�ii+x++Rs.++�.r:x++i++w+r�arww+riaw��+e�+:++*+<t::��xx
Warning: Divided flow computed for this cross-section.
CROSS SECTION OIITPUT Profile #10 year
++rasa+�t+�t.+.:��xkxs�+r++x+�,x�i+.ir,i.r:+.x+xr..w.+a.rexax:.r:r:�.r.��.r»*t»+��t�x+s++�*rr+++aa+:
* E.G. Elev (ft) * 4822.81 • Element ' Left OB * Channel * Right OB •
* Vel Head (ft) * 0.40 � Wt. n-Val. * 0.0"]0 * 0.040 * 0.070 *
t W.S. Elev (ft) * 4822.41 ` Reach Len. (ft) • 341.50 "' 610.00 * 556.00 *
* Crit W.S. (ft) < k Flow Area (sq ft) * 3�0.64 * 774.57 • 927.64 •
* E.G. Slope (ft/ft) *0.001659 " Area (sq ft) * 370.64 * 774.57 * 927.64 •
* Q Total (cfs) * 5950.00 ` Flow (cfs) * 564.73 * 4477.25 * 908.62 *
t Top Width (ft) * 1028.69 � Top WidCh (ft) * 158.38 * 101.00 * '169.31 •
* Vel Total (f[/s) w 2.87 t Avg. Vel. (ft/s) * 1.52 • 5.78 * 0.98 *
* Max Chl Dp[h (ft) * 8.41 * Hydr. �epth (ft) * 2.34 t 7.67 * 1.21 *
• Conv. Total (cfs) �146082.2 • Conv. (c£s) * 13850.4 *109923.8 * 22308.0 a
* Length Wtd. (ft) * 572.74 • Wetted Per. (ft) * 158.68 * 103.73 * 769.31 *
* Min Ch E1 (ft) * 4814.00 * Shear (lk�/sq ft) * 0.24 * 0.77 * 0.12 •
* Alpha * 3.10 * Stream Power (lb/ft s) ` 0.37 * 4.47 * 0.12 *
* Frctn Loss (ft) ' 1.04 " Cum Volume (acre-ft) * 11.80 R 39.42 * 78.84 *
* C � E Loss (ft) ` 0.01 "' Cum SA (acres) * 2.62 " 3.72 * 34.73 *
11/4YFR#44Y+*₹15+1t1;fS1T1:T�.!lS1h11:il1RhY1f11'ktf111i111:f14'k41ifI4f4+#4Y#FlttiiY4*'4I+#!#144h#M11R1
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and pzevious cross
sec[ion. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile #50 year
+..Ra.++.+.+�.+.++++.�.t..+.s..i.++....«..+...�+,......ax.:u:+.+H«.....w.+..++.a+.+.++.........:.
+ E.G. Elev (ft) t 4824.54 * Element ` Left OB • Channel * Right OB *
* Vel Head (ftl * 0.46 * Wt. n-Val. * 0.070 * 0.040 * 0.070 *
* W.S. Elev (ft) * 4824.08 * Reach Len. (ft) ' 341.50 * b10.00 * 556.00 *
* Crit W.S. (ft) * • Flow Area (sq fU * 639.74 * 942.74 * 2886.66 a
• E.G. Slope (ft/ft) *0.002026 r Area (sq fU ' 639.74 * 942.74 * 2886.66 *
' Q TOtal (cfs) �12849.79 � Flow (Cfs) + 1506.22 � 6864.38 * 4479.19 *
• Top Width (ft) * 1660.52 • Top Width (ft) • 164.85 * 107.00 • 1394.6'/ "'
t + Vel Total (ft/s) * 2.68 ; Avg. Vel. (ft/s) * 2.35 * 7.28 ` 1.55 *
Page 51
STVAAIN.rep
, * Max Chl Dpth (fU * lO.OB * Hydr. Depth (ft) * 3.88 • 9.33 * 2.0'1 *
* Conv. Total (cfsl `285498.4 * Conv. (cfs) ' 33465.4 *15�513.8 * 99519.2
* Length Wtd. ff[1 * 560.20 * Wetted Per. (ft) * 165.37 • 103.73 % 1394.68 �'
* Min Ch E1 (ftl ' 4814.00 • Shear (lb/sq fU ` 0.49 * 1.15 0.26
* Alpha ' 3.61 " Stream Power (lb/f[ s) * 1.15 �' 8.37 { 0.41 #
* Frctn Loss Iftl ` 1.13 ' Cum Volume (acre-fU ' 19.06 49.64 184.75
* C & E Loss (ftl ' 0.04 � Cum SA (aczes) * 2.88 * 3.79 • 41.43 *
+x4fi+1i4hi*�'F*fttt+�-.l+f�itttMlf£tkkrtl}4+*rt'.l+4fift�1F#h+�k.lY1+SA#14MAfR!'I:YfiilY'.lkk*i1fl}4#i#YiR#
Warning: The energy loss was greater than 1.0 ft (0.3 ml . between the current and previous cross
section. This may indicaee the need For additional cross sections.
CROSS SECTION
RIVER: St. Vrain River
REACA: I-25 [o Junction RS: 67624
INPUT
Description:
$tation Elevation Data num= 50
Sta Elev Sta Elev Sta Elev S[a Elev Sta Elev
+...x..++.+x.:..+....+..«..:::...x:«.+.:..:.x...xx..xx+::..+....+.»x....x.....x.
2528 4825.8 2597 4817.4 2640 4816.5 2651 4816.5 2678 4814.85
2696 4813.45 2742 4813.45 2769 4824.95 2794 4824.25 2816 4824.25
2842 4820.95 3017 4820.35 3083 4821.45 3117 4820.05 3218 4820.05
3417 4820.05 3507 4820.05 3527 4820.45 3619 4821.65 3817 4819.85
3918 4821.25 3990 4818.55 4017 4019.05 4169 4824.45 4193 4828.65
4213 4823.15 4226 4823.15 4243 4826.75 4419 4828.25 4608 4829.25
4616 4628.35 4623 4829.25 4816 4829.45 5017 4830.35 5172 4831.85
5198 4831.85 5206 4829.35 5217 4831.25 5223 4830.55 5230 4832.15
5250 4829.25 5418 4830.05 5532 4831.25 5541 4830.55 5549 4831.25
5620 4831.35 5818 4831.55 6020 4831.95 6221 4831.95 6356 4832.75
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
) +..x=+ax..:+....x+.kx..++.w..+:e.xx+a...+..:..a.
} 2528 .07 2651 .04 2769 .07
Bank S[a: Left Right Len9ths: Left Channel Right Cceff Contr. E�an.
2651 2769 604 810 815 .1 .3
� ffiocked Obstiuctions num= 1
Sta L Sta R Elev
o:t��.rx++�+r+::.x�::«r
3099 4069 4820.03
CROSS SECTION OUTPUT Piofile #100 yeaY
•x�3x�rr,at.�:.tFwFr+taww:�+wxx+i�r�t+��++.3+xw.+s�a+3a�x:4�rr�+�+Rr,:i�r+��t++tiRi��+�xxw+�+
�;E*G. Elev (ft) ' 4823.96 • Element * Left OH • Channel * Right OH *
> Vel Head (ft) • 0.35 * Wt. n-val. r 0.070 � 0.040 + 0.070 x
• W.S. Elev (ft) + 4823.61 * Reach Len. (ft) * 684.00 * 030.00 815.00 ;
* Crit W.S. (ft) • * Flow Area (sq ft) ' 523.23 ; 973.31 R 4009.21 *
* E_G. Slope (ft/ft) *0.002031 * Area (sq ft) * 523.23 973.31 * 4009.21
• Q Total lcfs) *16151.43 R Flow (cfs) # 1456.56 i 6688.90 * 8005.97 *
t Top Width (f[1 * 1561.15 * Top Width (ft) 105.03 114.86 * 1341.26 *
* Vel Total (ft/s) ' 2.93 ' Avg. Vel. (f[/S) ' 2.78 * 6.87 2.00
* Max Chl Dpth (ftl ' 10.16 * Hydr. Depth (ft) * 4.98 8�4� * z.99 �*
* Conv. Total (cfs) •358365.6 i Conv. (cfs) • 3231'1.9 ^148412.4 *177635.3
* Lengih Wtd. (f[) * 801.68 * Wetted Per. (ft) { 105.42 * 117.04 + 7341.69 *
* Min Ch E1 (ft) ` 4813.45 • Shear (lb/sq ftl 0.63 * 1.05 0.38 *
� Alpha ' 2.58 ` Stream eower Qb/ft sl * 1 JS R 7.25 * 0.76 +
* Frctn Loss (£t) * 1.45 * Cum Volume (acre-ft) ; 17.04 rt 39.70 ; ll9.51
0.03 Cum SA (acres) 1.91 2.30 24.73 *
C & E Loss �(ftµ * `
....+.+.«.+s. .. ..,..x:..x.x.+...+:t..+++.:•+.x..:.x�..x.,.x:+..x...x•+.:x+:.x.:.•.+:+:..•..>.
� Warning: �ivided flow computed for this cross-section.
warning: The energy loss was greatei than 1.o ft (0.3 m) . between the current and previous cross
secGion. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile #500 year
•xiirx++i+3++r:rx�Rw+iii+Kiwear���txi�xrr�.+ii*+.r�+:�+��+�w�+t+wk+�+r�t+r�x+�+xk+�rxx�+x
*RE+G{*Elev lft) * 4826.14 * Element * Left OB ; Channel * Right OB *
� * Vel Head (ft) ' 0.33 * Wt. n-Val. ` 0.070 ; 0.040 * 0.070 *
+ w.S. Elev IfU * 4825.81 * Reach Len. (ft) 684.00 810.00 * 815.00 •
Page 52
STVRAIN.rep
� * Crit W.S. (ftl = * Flow Area (sq ft) � 7'l3 JB * 1230.43 * 7096.99 *
+ * E.G. S1ope �ft/Et) •0.001751 * Area (sq ft) ' "773.76 ' 1230.43 ' 7096.99 *
i Q Total (cfs) *29679.14 * Flow (cfs) +' 2335.83 • 9005.61 *1833�.70 '
* Top wi.dth (fU • 1683.99 � Top Width (ft) * 123.00 " 118.00 * 1442.99 �
* Vel T0Ga1 (ft/s) • 3.26 * Avg. Vel. (ft/e) " 3.02 " 7.32 " 2.58 "
* Max Chl Dpth (f[) * 12.36 � Hydr. Depth (fU ` 6.29 � 10.43 "' 4.92 *
* Conv. To[al (cfs) *'109183.2 * Conv. (cfs) * 55814.'/ �215189.1 *4381'19.4 *
* Length W[d. (ft) ' 802.74 * Wetted PeY. (ft) " 123.53 * 120.45 • 1444.14 *
* Min Ch E1 (ftl � 4813.45 ' Shear (lb/sq ft) * 0.68 * 7.12 * 0.54 t
� Alpha * 1.98 * S[ream Power (lb/ft s) * 2.0"l • 8.17 * 1.39 *
• Frctn Loss (fU * 1.09 " Cum Volume (aCYe-ft) • 2'].70 * 52.95 * 338.35 *
' C 6 E Loss (ft) * 0.04 * Cum SA (acres) * 2.06 R 2.33 * 28.96 k
+i=::x«x«t.+.:....��::.x++x++�,t�i�.:xrww+.wr..:.�r::a....�w�r**��tF::::w+xxR+a.��.:.::w.*.wF..
Warning: Divided flow computed for [his cross-section.
Warning� The cross-section end points had to be extended vertically for the computed water surface.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . betw?en the curzen[ and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile p10 yeaz �
:+..��,x>>r:x.+:t,x�.��i���=::�x:.rx*i++�taii����:R»*..++�+.:t:t:..w.x��.r:r.i�iat+.axa�..r+n.���:.+
* E.G. Elev (ft) • 4821.7"/ * Element * Left OB * Channel * Right OB *
* Vel Head (fU * 0.37 * Wt. n-Val. * 0.070 ' 0.040 * 0.070 +
* W.S. Elev (ft) • 4821.39 * Reach Len. (ft) * 684.00 * 810.00 � 815.00 *
' CYit W.S. (fU • + Flow Area (sq ft) • 310.28 * 724.09 * 1157.01 �
* E.G. Slope (ft/ft) �0.0o19B1 * Area (sq ft) " 310.26 • 724.09 " 1157.01 '
* Q Tota1 (cfs) * 5950.00 • Flow (cfs) * 684.13 * 4170_66 ' 1095.21 *
* Top Width (ft) "' 138'1.82 ' Top Width (ft) * 86 J9 ' 109.65 * 1191.38 *
+ Vel To[al (ft/s) '� 2.�2 * Avg. Vel. (f[/s) ' 2.20 * 5."J6 * 0.95 +
> Max Chl Dpth (fU * 7.94 i Hydr. Depth (ft) ' 3.57 * 6.60 * 0.97 >
* Co�v. To[al (cfs) *1336"/3.9 * Conv. (cfsl * 15369.7 * 93698.9 * 24605.2 *
' Length Wtd. (ft) * 798.% ' Wetted Per. (ft) • 37.04 * 117.39 * 1191.52 •
* Min Ch E1 (fU * 4813.45 * SheaZ (lb/sq ft) ' 0.44 * 0.80 ` 0.12 �
"' Alpha + 3.25 = Stream Power (lb/ft s) • 0.97 * 9.63 # 0.11 *
* Frctn Loss (fU * 1.41 ' Cum Volume (acre-ft) * 9.13 * 28.93 ' 65.53 '
* C & E Loss (Pt) � 0.05 • Cum SA (acresl * 1.66 * 2.24 ' 22.22 *
:..�«a�.+aaK���iri�:+:::.*�++y��++�.i++r�a:r�a,�xx.rxs+at�::+.x:rrxrx*++a��:��.�x«�+�a:.:ar�..*+:
f
Warning: �ivided flow computed for [his cross-section.
warning: The energy loss was greater than 1.0 ft (0.3 m) . hetween the current and px'evious cross
sec[ion. This may indicate the need for additional cross sec[ions.
CROSS SECTION OUTPUT Profile q50 yeaY
i4tRiMai1*hfititf+k**i+litfxTtFF}�.t'.!'.lR1:Mt#'.l+4#!*<1tRkkFt'.l4144i'�RtxSi#!>T�.!*'.lfi111i##�.!lf�thl#144iktf
' E.G. Elev (£t) � 4823.37 = Element + Left OH * Channel * Aight OB >
* vel Head fft) * 0.35 * Wt. n-Val. + 0.070 * 0.040 * 0.070 *
' W.S. Elev (ft) • 4823.03 * Reach Len. (ft) k 684.00 * 810.00 * 815.00 *
� Crit W.S. (ft) * + Flow Area (Sq ft) * 463.0� * 906.30 • 3231.21 *
* E.G. Slope (ft/ft) *0.002022 • ALea (sq ft) • 463.40 * 906.30 * 3231.21 *
* Q Total (<fs) 312849."19 * F1ow (cfs) * 1223.21 ` 5977.07 * 5649.52 •
' Top Width (ft) � 1516.94 > Top Width (ft) * 100.21 ' 113.48 * 1303.25 *
* Vel Total (ft/s) * 2.79 ' Avg. Vel. (ft/s) * 2.64 ' 6.60 * 1.'15 *
* Max Chl Dpth (ft) * 9.SB ' Hydr. �epth (ft) • 4.62 * 7.99 3 Z.qg t
* Conv. Total (cfsl •285�43.9 * Conv. (cfs) + 27200.7 *132913.5 •125629.7 *
+ Leng[h Wtd. (ft) * 801.11 ' Wetted Per. (ft) + 100.56 * 115.54 * 1303.52 F
* Min Ch E1 (ft) � 4813.45 * Shear (lb/sq ft) • 0.58 * 0.99 • 0.31 *
* Alpha * 2.85 * Stream Power (lb/ft s1 • 1.54 � 6.53 "' 0.55 •
+ FrCtn Lo55 (ft) * 1.46 * Cum Volume (aCre-ft) * 14.74 x 36.69 ' 145.71 •
* C & E Loss (fU * 0.03 * Cum SA (acres) * 1.85 * 2.29 � 24.21 3
11:1f+t4fff4tf%4f4xfF'RitY<i14+ikk4+F1kI�.F*11+�.lF*i##;Y1+#iR+#1+#1f4ii4!'.lf41:444+#dlfk4iYiliit;xthla#
Warning: Divided flow computed for [his cross-section.
Warning: The energy loss was greater than 1.o ft (0.3 m) . between the curren[ and previous cross
section. This may indicate the need for additional cross sections. �
LATERAL STRUCTURE
RIVER: SL Vrain River �
REACH: I-25 [o Junction RS: 67487
INPUT
. Description: This is the last location where water overtops the berm and spills
into the lakes.
Page 53
STVRAIN.rep
Lateral structure posi[ion = Nex[ o[ left bank station
� Distance from Upstream XS = 50
Deck/Roadway width = 39
Weir Coefficient = 2.63
Weir Flow Reference = WaCer Suzface
Weir Embankment Coordinaees num = 4
Sta E1ev S[a Elev 5[a Elev Sta Elev
.:.....+..«.....+.............«..+..,......,.+.,,...............
5602 4823.� 5686 4822.9 6150 4822.9 621"1 4823.5
Weir crest shape = Broad Crested
LATERAL STRUCTURE OOTPUT Profile M100 year Lat S[ruct
•k:��r�a++�a+iaWxxxx...r+.+:�Ftt�i.r++:irx�xx+r:.::iir.:...:aa+�rrwx..ta+
* E.G. OS. (ft) * 4623.87 ' Weir Sta US (ft) * 5624.08 "
" W.S. f7S. (fU * 4823.53 ' Weir Sta DS (ft) * 5972.00 *
* E.G. DS (ft) ' 4822.74 " Weir Max �epth (ft) * 0.48 *
* W.S. �S (ft) ' 4822.48 ' Weir Avg �epth (ft) * 0.24 "
' Q US (cfs) `16151.43 • Weir Submerg R 0.00 *
+ Q Leaving Total (cfs) � 123.64 ' Min E1 Weir Flow (fU * 4822.90 *
' Q DS (cfsl *16027.83 ' Wr Top Wdth (ft) * 347.93 *
* Perc Q Leaving ' 0.77 ' Q Gate Group (cfs) ' `
^' Q Weir (cfs) * 123.64 ' Gate Open Ht (fU * `
� Q Gates (cfsl ` ' Gate pOpen * *
� Q Cvlv (cfs) ` * Gate Area (sq fU * '
+ Q Lat RC Icfs1 • * Gate Submerg * *
* Weii Flow Area (sq ft) � 84.35 ' Gate Invert (ft) * `
r��x�++i.+�+:a...x.�:x.,.,:tx*+.�:::�xvr:r:,t.ar+x:+:.�+xr:�.arrrirr:aai.w
LATERAL STRUCTURE OUTPUT Profile #500 year Lat Struct
��..:.++.i+x�r:t++.+.::.ai.��r�w++::+i+...++ir�.:::..�w.:::�i�wnx�+::i�.rxx
* E.G. US. (ft) ' 4826.07 + Weir Sta OS (fU � 5602.00 *
' W.S. US. (ft) ' 4fl25.75 • Weir Sta �S (ft) ' 6217.00 *
' E.G. DS (ft) • 4825.21 ' WeiY Max �epth (fU ` 2.74 •
` W.S. DS (f[) ' 4824.99 * Weir Avg Depth (ft) • 2.41 *
! • Q US (cfs) '296']9.14 * Weir Submerg * ��94 �
� • Q Leaving Total (cf51 ' 2662.11 * Min E1 Weir Flow (fU * 4822.90
t Q �S (cfs) '2"1058.22 ' k'r Top Wdth (fU * 615.00 �
* Perc Q Leaving * 8.83 • 4 Gate Group (cfs) * `
� � Q Weix (Cf5) * 2662.11 � Gate Open Ht (ft) * •
* Q Gates (cfs) * ' Gate #Open * `
* 4 Culv lcfs) � ' Gate Area (sq ft) • `
* Q Lat RC (cfs) ' * Gate Submer9 • `
` Weir Flow Area (sq fU ' 1484.20 * Gate Invert (ft) ` `
a��i�arr:r,xwr::.:.:�,i.ix:,.::�a+.,x...ai+xt+ar+R..iia+�re«�rr.rw::�+a�rr�:�+
WTERAL STRUCTURE OUTPUT Piofile p10 year Lat Struct
R'kfAik'.ltifiii4k*i�t1'��fiFii�A�sRi*�.11ft4fl'kflf4i#+�illkittiiiMRle1lslii#Atf
i E.G. US. (f[) ` 4821.68 ' Weir Sta US (Et) * '
R W.S. US. (f[) ' 4821.31 • Weir Sta DS (£U * *
* E.G. DS (ft) • 4820.59 * Weir Max �epth (ft) * •
* W.S. DS (ft) ' 4820.33 • Weir Avg Depth (ft) • *
+ Q US (cfs) ' 5950.00 ' Weir Submer9 * `
� Q Leaving Total (cfs) ' 0.00 * Min E1 weir elow (ft) * 4822.90 *
� Q DS (c£s) * 5950.00 * Wr Top Wdth (ft) * '
` Pezc Q Leaving ' 0.00 * Q Ga[e Gioup (cfs) ` `
� Q Weir (cfs) ' " Gate Open Ht (ft) ^ `
+ Q Gates (cfs) ` • Gate pOpen ` `
t Q Culv (cfs) * * Gate Area (sq ft) ' *
* Q Lat RC (cfs) ' ` Gate Submerg ' t
• Weir Plow Area (sq ft) " * Gate Invert (fU ` '
.w..x..�.++....:..::....::..+.xx•.+..:....w++...x.,....::+..:.....:..t+....
LATERAL STRUCTIIAE OOTPIIT Profile #50 year Lat Struct
..x..+.x+.....,.::,..,:.:.w..,.+,.a.�..,xx......::...,...a..++:.+..+....w
* E.G. US. (ft) ' 4823.28 " Weir Sta US (ft) • '
+ W.S. US. (ft) * 4822.94 • Weir Sta DS (fU ' "
� E.G. DS (fU ' 4822.15 * weir Max Depth (fU ' '
+ W.S. �S (ft) " 4821.90 ' Weir Avg �epth (fU ' '
+ Q US (Cfs) '12849.79 ' Weir Submerg * `
� Q Leaving Total (cEs) ` 0.00 ' Min E1 Weir Flow (ft) • 4822.90 k
� Q DS (cfs) '12849.79 • Wr Top Wdth (f[) ' '
� Perc Q Leaving • 0.00 • Q Gate Group (c£s) ` `
Page 54
STVRAIN.rep
� * Q Weir (cfs) * � Gate Open Ht (ft) * +
� * Q Gaees (cfs) � + Gate #Open + «
` 4 Culv (cfs) * * Gate Area (sq ft) • {
* Q Lat RC (cfs) • + Gate Submerg * t
' Weir Flow Area Isq fU * ' Gate Invert (ft) * *
:.::r:...t.+.xx+:.,..x.w+«:a:...x«+�:r++r+:„::..:.....:ax++.:..�.,��r,t�xi+
CROSS SECTION
RIVER: St- Vzain River
REACH: I-25 to Junction RS: 66814
INPUT
DeSCYip[ion:
Station Elevation Data num= 50
S[a E1ev Sta Elev Sta Elev Sta Elev Sta Elev
«::x+*rx�+.,.��i�,�:i.�,:....F*+:::xrwrr..ii+t::t::::xx+x�+x++x+:�::x.+x«�x.r�taw
2902 4822.3 2423 4819 2541 4B16 2561 4815.55 2582 4812.85
2604 4812.85 2629 4812.85 2658 4815.85 2674 4820.55 2689 4821.45 �
2697 4815.45 2"/19 4819.35 2765 4B16.25 2807 4817.25 2835 4819.85
2917 4820.05 3120 4818.95 3188 4819.55 3221 4818.75 3318 4818.65
3521 4818.35 3785 4818.25 3921 4821.05 3983 4823.65 4120 4824.85
4321 4824.95 4374 4826.55 4384 4820.95 4404 4820.95 4421 4826.25
4432 4824.75 4523 4824."15 4722 4824.95 4804 4825.05 4825 4824.25
4841 482'1.35 4881 4826.�5 4925 4827.05 5123 4828.55 5258 4828.85
5272 4830.05 5282 482"/.35 5296 4829.35 5321 4B29.35 5334 482"7.35
5348 4928.35 5523 4829.25 5721 4H29.45 5920 4830.45 612'/ 4830.05
Manning'S n ValUes �Um= 3
Sta n Val Sta n Val Sta n Va1
«++.�.....«..x.....x.:...w........x.k+.««x..x.«s
2402 .0"1 2541 .04 2674 .0�
Bank Sta: Left Right i.engths: Left Channel Right Ccef£ Cwtr. E�[pan.
2541 2674 1040 10"19 1040 .1 .3
Blocked Obstructians num= 1
F� Sta L Sta R Elev
t::xaxraxt+�:xxxx.:+i:>s
2402 2402 4825
CROSS SECTION OUTPUT Profile #100 year
+:xR+.i++�tt:xxux��i+::+x�xrw.+«wi+�ta+i�Rxxxr�r:i�it+Fr+��xt�xx:xx:�.�.r�+i�x+x.:xwrwr�iF:�.wrxxw
' E.G. Elev (ft) * 4822.48 * Elemen[ * Left OB * Channel * Right OB F
* Vel Head (fU * 0.24 * Wt. n-Val. � 0.070 * 0.040 ' 0.0�0 '
* W.S. Elev (fU * 4922.24 * Reach Len. (Et) • 965.00 * 965.00 * 965.00 *
* Crit W.S. (ft) � * Flow Area (sq ft) ' 592.49 * 1032.69 * 4452.44 •
* E.G. Slope (ft/ft) '0.001620 * Area (sq f[) * 592.49 * 1032.69 • 4452.44 *
* Q Total (cfs) �"16027.83 ' Flow (cfs) * 1331.31 * 6023.50 � 8673.02 '
* Top Width (ft) * 15�3.38 * Top Width (ft) * 138.61 * 133.00 ' 1307.77 +
• Vel Total (ft/s) * 2.64 * Avg. Vel. (ft/s) * 2.25 * 5.83 ' 1.95 *
* Max Chl Dpth (fU t 9.39 " Hydr. Depth (ft) * 4.27 * 7.76 * 3.42 i
' ConV. Total (cfsl *398248.8 � Conv. (cfs) * 33079.5 *14966�.8 '215501.4 *
* Lengih Wtd. (ft) • 965.00 t Wetted Per. (ft) • 138.90 F 134.01 > 1304.60 *
* Min Ch E1 (ft) � 4812.85 * SheaY (lb/sq ft) � 0.43 * 0.78 � 0.35 '
t Alpha * 2.19 * Stream power (lb/ft s) * 0.97 t 4.55 * 0.67 *
• Frctn Loss (ft) * 2.02 * Cum Volume (acre-ft) + 8.28 * 21.05 � 100.35 �
' C � E Loss (Et) * 0.01 * Cum SA (acres) * * * *
.x....++xa:+..+..«...+..++...:.+...++.++.k..a.:a..x...r.:.......�,x+w....+r:�.+x.x«...s..:::..x..
Warning: �ivided flow computed for [his cross-section.
Warning: The energy loss was greater than i.o ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OOTPUT Profile $500 yeaz
•��..a�.+�+:kt+.++�t.:.w»w�.��i:.:.wrx�x.r:.xx��Fi+::�+tw++��at+.x+x�xwx��r«.�+w��.txi.��i�x:rr+i
* E.G. Elev (ft) * 4825.01 * Element * Left OH � Channel * Right OB �
+ Vel Head (ft) * 0.20 • Wt. n-val. * 0.070 + 0.040 � �.070 *
* W.S. Elev (ft) * 4824.81 * Reach Len. (ft) * 965.00 * 965.00 { 965.00 +
� R Crit W.S. Ift) * * Plow Area (sq ft) � 950.29 • 1375.06 a 7972.67 >
* E.G. Slope (ft/ft1 *0.001056 * Azea (sq ft) • 950.29 + 1375.06 * 7972.67 •
* Q Total (cfs) *27058.22 � Flow (cfs) R 2330.45 t 7839.69 *16888.08 �
* Top Width (Pt) * 1924.25 * Top Width (ft) * 139.00 * 133.00 * 1652.25 +
� * Vel Total (ft/s) * 2.63 • Avg. Vel. (f[/s) * 2.45 * 5.70 * 2.12 "
Page 55
STVRAIN.rep
* Max Chl Dpth (ft) * 11.96 • Hydr. Dep[h (ft) " 6.84 " 10.34 * 4.83 •
' Conv. Tota1 (cEs) *832496.3 * Conv. (cfs) * 71700.5 •241202.7 •519593.1 `
* Length Wtd. (fH • 965.00 • Wetted Per. (ft) • 141.81 ' 134.01 ' 1656.25 *
* Min Ch E1 (ft) ' 4812.85 " Shear (lb/sq ft) • 0.44 ' 0.68 * 0.32 "
* A1pha ` 1.84 � Stream Power (lb/ft s) * 1.08 ' 3.86 * 0.6"] *
' Frctn Loss (fU * 1.60 * Cum Volume (acre-fU * 19.11 * 28.73 ' 19'1.3� �
* C & E Loss (ft) ' 0.02 * Cum SA (acres) * ' ` `
«,:..._:..:.:,.:.«..,:.:,,.:...:.:.R�x.«..«.+:,.::,.:�.:�.+.tii.«+R��Fxi.x*+«cr�+:«,::ai.+..:..
Warning: Divided flow computed for [his cross-section.
Warning: The cross-section end poin[s had to be exte�ded vertically for the mmputed water surface.
warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indica[e the need Eor additional cross sections.
CROSS SECTION WTPOT Profile St10 year
wR.:,i.�:+.:..:..::x+:+.a.+ia.xwr.x+.,:.:..�:�a�.�tr++,+..,,++i:��i.��+.�r�w«rwwr.rr«xx.:rxt+.+�
� E.G. Elev (ft) ' 4820.31 • Element * Left OH * Channel * Right OB *
* Vel Head (ft) ` 0.21 * Wt. n-Val. • 0.070 ` 0.�40 * 0.0"]0 *
* W.S. Elev (ft) * 4820.10 * Reach Len. (Et) * 965.00 * 965.00 * 965.00 '
* Cri[ W.S. (ft) " ` Flow AYea (Sq ft) * 310.05 • 748.01 ' 1770.21 '
* E.G. Slope (ft/ft) "0.OO15B8 * Area (Sq ft) • 310.05 " 748.01 * 1770.21 '
• Q Total (cfs) ' 5950.00 * Flow (cfs) * 480.42 * 3513.11 * 1956.46 *
* Top wid[h (fU * 1440.25 * Top Widih (ft) � 124.97 * 131.45 * 1183.82 '
+ Vel Total (ft/s) * 2.10 ' Avg. Vel. (ft/s) ' 1.55 * 4.70 � 1.11 *
+ Max Chl Dp[h (ftl * 7.25 * Hydr. Depth (ft) * 2.49 " 5.69 ' 1.50 *
' Conv. Total (cfs) i749288.0 * Conv. (cfs) * 12054.0 * 88145.5 * 49080.5 *
= Length w[d. (fU ' 965.00 * wetted Per. (ft1 * 125.09 * 132.40 k 1185.61 *
' Min Ch E1 (Et) ' 4812.85 * Sheaz (lb/sq ft) " 0.25 * 0.56 * 0.15 *
* Alpha * 3.08 * Stream Power (lb/ft s) * 0.38 " 2.63 * 0.16 �'
'� Fic[n Loss (ft) * 1.91 ' Cum Volume (acre-ft) � 4.26 * 15.24 * 38.15 *
' C & E Loss (Et) * 0.01 ' Cllm SA (aCTe5) ' ` ' '
:�t+++.k«+wt«w=..::...x:.:�+{:x.irr:r+xi..+.+x..+.+t::.r�x.�.ar.+.+;++:ii�++��+..r:+x+:::::ar�t*�+
Warning: Divided flow computed for this cross-section.
Warning: The energy loss was greatez than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
�� CROSS SECTION OUTP[1T Profile #50 year
..x..::+,:.::.x...+.+...x.x.:::...+..xx+:+...,r..:.::.......x»x.x+..«..........:...«aw+..xxx.x.
* E.G. Elev (ft) * 4821.88 • Element * Left OB • Channel ' Righ[ OB *
* Vel Head (ft) • 0.23 * Wt. n-Val. ' 0.070 • 0.040 * 0.070 '
* W.S. Elev (fU * 4821.65 * Reach Len. (ft) * 965.00 '�' 965.00 " 965.00 *
' Crit W.S. (fU ' * Flow Area (sq Et) ' 511.90 * 954.30 * 3690.29 '
* E.G. Slope (ft/E[) *0.001645 � Area (sq ft) * 511.90 � 954.30 * 3690.24 *
� Q Total (cfs) *12849.79 ' Flow (cfsl * 1071.15 ^ 5322.�1 * 6456.64 '
t Top Width Ift) * 1552.63 • Top Width (fU " 134.86 * 133.00 � 1294.78 •
* Vel Total (ft/s) * 2.49 ' Avg. Vel. (ft/s) * 2.09 ` 5.58 ` 1.75 +
* Max Chl Opth (ft) � 8.80 * Hydr. Depth (ft) * 3.80 * 7.18 R 2.87 *
* Conv. Total (cfs) '316819.2 * COnv. (Cfs) ' 26409.7 *131219.3 *159192.2 �
* Length W[d. (f[) • 965.00 * Wet[ed Per. (ft) • 135.10 * 134.01 * 1287.35 *
* Min Ch E1 Ift) * 4812.85 * Shear (lb/sq fU ' 0.39 * 0.73 ' 0.29 '
• Alpha * 2.38 * Stream Power (lb/ft s) ' 0.81 * 4.08 * 0.52 •
* Frctn Loss (Pt) * 2.02 � Cum Volume (acre-ft) * �.08 * 19.39 ' 80.96 `
* C 6 E Loss (ft) * 0.01 * Cum SA (acres) ' * * *
F'.l�.tl:FtttfiYllf'.l11x'R'.lSA}t###YY*+Fftttti*1f#ititY**hi+ffSi4fAIY'Rfii�i+*#i:4#:!f#�+fiYlikl#ii###iM##
Warning: Divided flow computed for ihis cross-section.
Warning: The energy loss was greater than 1.o ft (0.3 m1 . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: St. Vrain RiVeT
REACH: FOLL RIVER RS: 65735
INPUT
Description:
Station EleVation Data num= 44
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
•itirr�i.+��+�+�+ii�rxrr:�xit�xxr...iw+.xx.+.���:+;+�+.i�s*++aati�+�+ea�a+a��ww+♦
2097 4821.8 2122 4819 2161 4813.5 2185 4813 2200 4817.95
2252 4811.95 2287 4816.75 2342 4816.55 2417 9815.65 2502 4815.85
2522 4817.35 2539 4816.95 2740 4816.85 2903 4816.65 2926 4812.55
Page 56
STVRAIN.rep
2945 4812-55 2974 4816.25 3140 4876.85 3339 4817.65 3538 9818.55
' 3"141 4818.85 3880 4819.85 3887 4819.05 3892 4819.85 3912 4819.85
3949 4818.85 3964 4819.65 4ll2 4822.65 47"]3 4823.45 4229 4826.05
4243 4820.05 4251 4820.05 4275 4826.05 4321 4824.55 4359 4824.95
4502 4826.55 4556 4826.55 4756 4826.55 4956 4826.% 5156 4827.55
5229 4828.35 5246 4829.15 5253 4826.45 5264 4829.25
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
+a.++.....,..,:.:..�...:.x...�+..+.::.+...+..+..
209] .0� 2161 .04 2261 .0"/
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Espan.
2161 2281 95 1135 1025 .1 .3
CROSS SECTION OVTPOT PYofile #100 year
�<.t+�r*+:+:x:x::.wr:::x.x.x��::�we�;x:rt++r.:t�+Fr�xr:w+:+�t+�++:+a:t:��i:w�t*r+xr�+«xx�xxrxxxrxx
' E.G. Elev (ft) * 4820.45 * Element * Left OH * Channel " Right OB '
' Vel Nead (ft) * 0.36 " Wt. n-Val. * 0.090 * 0.040 ' 0.070 *
* W.S. Elev (ft) * 4820.09 * Reach Len. (ft) * 95.00 • 1135.00 ' 1025.00 •
* CYit W.5. (ft) * * FlOw ATea (sq ft) * 155.01 * 867.97 ' 460"/.39 *
* E.G. Slope (ft/ft) *0.002774 * Area (5q fU * 155.01 * 867.97 * 4607.39 *
* Q Total (cEs) "'16700.00 * Flow (cfs) * 372.62 * 6336.38 ' 9991.01 '
' Top Width (ft) * 1881.63 ' Top Width (ftI ' 48.72 * 120.00 * 1712.90 *
� Vel Total (ft/s) • 2.97 * Avg. Vel. (ft/s) * 2.40 * "].30 * 2.17 *
* Max Ch1 �pth (ft) r 8.14 * Hydr. Depth (ft) * 3.18 * 7.23 * 2.69 *
* Conv. Total (cfs) '317066.6 ' Conv. (cfs) * 7074.5 *120302.6 *189689.5 *
* Length Wtd. (fU * 1043.56 ' We[ted Per. (ft) ' 49.17 * 120.44 ' 1713.74 *
* Min Ch E1 (ft) * 4817.95 * Shear (lb/sq ft) * 0.55 * 1.25 * 0.47 *
* Alpha * 2.63 * Stream Power (16/ft s) "' 1.31 * 9.11 * 1.01 *
* Fmtn Loss (ft) * 2.29 * Cum Volume (acre-ft) ' 695.34 • 338.84 * 888.45 *
* C & E Loss (ft) 3 0.07 * Cum SA (acres) ' 229.47 * 43.14 * 277.49 *
�.r.x��ixx+++.::..:.,:rt�++t+i+aa�+�wxxtr.r:w+::.:s.3.�xwwr:xr�Rx.r:+xxxxxxx.�.rxx:..::�..��x.��xxrt
Warning: Divided flow computed for ihis cross-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the curren[ and previous cross
� section. This may indicate the need for additional cross sections.
/
� CROSS SECTION OUTPOT Profile #500 year
++:..::..,.:..+..:..::....+.e+++a.«..+..++w....x.x::..:.+.........:.....xx.x.r:..:+x....x+++...
• E.G. Elev (ft) * 4823.39 ' Element * Left OB • Channel "' Right OB *
* Vel Head (ft) * 0.39 ' wt. n-Val. • 0.070 * 0.040 * 0.0"]0 �
" w.S. Elev Iftl * 4823.01 * Reach Len. (ft) • %.00 * 1135.00 * 1025.00 i
* Crit w.5. (ft) * * Plow Area (sq ft) * 328 JS � 1218.25 * 9846.13 *
• E.G. Slope (ft/£t) •0.002363 * Area (sq fU ' 328.�5 * 1218.25 * 9846.13 R
a Q Total (cfsl '41960.00 • Flow (cfs) * 991.86 *10288.63 *30679.52 r
" Top Width (ft) * 2069.02 • Top width (ft) ' 64.00 * 120.00 * 1885.02 •
� Vel Total (£t/s) '� 3.68 * Avg. Vel. (ft/s) * 3.02 * 8.45 * 3.12 *
" Max Chl Op[h Ift) • 11.06 • Hydr. Depth (ft) "' 5.14 * 10.15 * 5.22 "
� Conv. Total (cfsl *863245.1 * Conv. (cfs) * 20405.5 •211668.5 �631171.2 *
' Length Wtd. (fU ' 1030.BB * We[ted Pei_ (ft) * 65.75 * 120.44 * 1886.84 •
* Min Ch E1 �fU " 4811.95 * Shear (lb/sq fU • 0.74 • 1.49 * 0.77 *
* Alpha • 1.83 • Stream Power (lb/ft 5) * 2.23 * 12.60 * 2.90 *
* Frctn Loss (ft) ' 2.57 * Cum Volume (acre-ft) ' 1301 J6 * 454.29 * 1689.07 •
* C 6 E Loss (ft) * 0.03 * Cum SA (acres) ' 254.04 • 42.99 * 3"/0.10 *
ii#*iiiFf+i4titti�tfttFsk+44tfk#k4444ixi*f#!4#k1#i*h:'vl�.l4i+titf4kiiYitiYrt*k1#+If+M'.lfA4###!#R#+f#
warning: �ivided flow computed for this cross-section.
Warning: The cross-section end points had to be extended vertically for the computed water surface.
Warning: The energy loss was greater than 1.o ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile q10 yeaY
x��:::{:i:.:,.:t.t::::+::.��t+akta.�tx+�.�t:i�:..+.w.`.�.w:w..:::.::x�++++.xi+i+i++.ww.»w.x+x�,+�+:
* E.G. Elev (fU * 4818.39 ' Element ' Left OB � Channel * Right OB *
• Vel Head (ft) • 0.30 * Wt. n-Val. * 0.070 * 0.040 * 0.070 +
* W.S. Elev (fU • 4B18.09 * Reach Len. (ft) * 95.00 * 1135.00 * 1025.00 *
* Crit W.S. (£U ' * F1ow Area (sq fU * 74.63 * 627.86 * 1673.68 •
�' E.G. Slope (ft/fU '0.002528 * Area (sq ft) * 74.63 * 627.86 • 1673.68 •
" Q Total (cfs) ' 5950.00 * Flow (cfs) * 13�.63 * 3525.67 * 2286.70 �
* Top Width (ft) * 1307.39 * Top Width (ft) * 32.53 * 120.00 * 1154.85 *
* Vel Total (ft/s) ' 2.50 ' Avg. Vel. (ft/s) ' 1.84 • 5.62 '" 1.37 •
��� * Max Chl Dpth (ft) ' 6.14 * Hydr. Depth Iftl ' 2.29 * 5.23 * 1.45 *
* Conv. Total �Cfs) 'll8342.5 * Conv. (cfs� ' 2"J3"/.4 " 70123.7 * 45481.4 '
Page 57
STVRAIN.rep
* Length Wtd. (fU x 1060.80 * Wetted Per. (fU * 32.85 * 120.44 i 1155.52 * �
� * Min Ch E1 (ft) • 9811.95 * Shear (lb/sq fU * 0.36 * O.B2 * 0.23 *
� " Alpha � 3.11 * Stream Power (lb/ft 5) * 0.66 * 4.62 + 0.31 *
* Frctn Loss (fU * 2.18 * Cum Volume (acre-ft) * 269.52 * 233.04 � 393.27 *
' C S E Loss (fU " 0.06 • Cum SA (acres) * 15�.87 ' 41.63 • 163.34 +
�t:..+x,::Ki:.*.i:..+k�x.+,:..���+:��.rxrw�x*:ii+wia:wwirF���:+�xrr+�r..r�x:�iat..xw�rra��t�+ri
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
secLion. This may indicate [he need for additional cross sections.
CROSS SECTION OUTPUT Profile #50 year
....+..x...:.....«t«««+...::x...:.,.x:x.x..+.x....:.xx.x..+..++..........:.+,.x:.+.:�.�+..+.�..
w E.G. Elev (ft) * 4819.84 * Element * Left OB * Channel • Right OB *
+ Vel Head (EU � 0.35 * Wt. n-Val. t 0.070 ' 0.040 • 0.070 *
' W.S. Elev (EU + 4819.49 * Reach Len. (£t) • 95.00 * 1135.00 * 3025.00 *
* Crit W.S. (ft) + � Flow Area (sq ft) r 127.55 � 796.43 � 3618.51 *
w E.G. Slope (ft/fU •0.002�68 * Area (sq ft) * 127.55 • 796.43 * 3618.A *
* Q Total (cfs) i12850.00 ' Flow (cfs) • 290.42 • 5483.83 * �075.75 "
* Top Width (ft) • 1�55.19 * Top Width (ft) * 43.40 • 120.00 * 1591.75 *
* Vel Total (ft/sl " 2.83 * Avg. Vel. (f[/s) * 2.28 * 6.89 * 1.96 r
• Max Chl Dpth (fU * 7.54 • Hydr. Depth (f[) ' 2.94 * 6.64 * 2.27 •
� COnv. Total (Cfs) �244247.4 * Conv. (cfs) ' 5520.2 •104234.3 '134492.9 �
' Length Wtd. (ft) * 1047.48 t Wet[ed Pei. (ft) � 43.81 � 120.44 * 1592.54 *
* Min Ch E1 (ft) ' 4811.95 * Shear (lb/sq ft) * 0.50 * 1.14 ' 0.39 *
+ Alpha * 2.81 � Stream Power (lb/ft s) • 1.15 * 7.8� * 0.77 •
* Frctn Loss (ft) * 2.31 * Cum Volume (acze-ft) * 553.28 * 307.00 ` 727.45 "
* C & E Loss (fU rt 0.07 + Nm SA (acres) • 177.66 * 42.91 * 210.91 �
xF+�t:a�x�+ti:::.Rx.+::.x..w+�.+�t����::.w.ra.xr+ar.a:..:.:.rr�+t+a.��:::..��+t�Fi+t���w+iw�*i+
Warning: Divided flow computed for this cross-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the curren[ and previous cross
sec[ion. Tnis may indicate the need for additional cross sections.
CROSS SECTION
� RIVEA: St. Vrain River
REACH: FULL RIVER RS: 64600
INPUT
Descsiption:
� Station ElevatiOn Data aUm= 56
Sta Elev Sta Elev Sta Elev S[a Elev S[a Elev
#iixif#W*itt�RfAA*ikk##fitfklllthit+##nFi#fi4�iAR}1xf1i1f144i1i**�Iltlftxlfhii#W
1200 4829.3 1200.1 4829.3 1243 4826 1266 4824.6 1324 4822.6
1370 4821.3 1399 4820.2 1483 4816 1500 4810.85 1525 4810.85
1549 4810.85 1560 4811 1604 4813.95 1626 4814.05 1684 4814.55
1735 4B14.95 1749 4814.85 1832 4814.15 2030 4814.65 2118 4814.55
2131 4812.85 2140 4814.35 2157 4812.25 2171 4814.35 2232 4814.55
2432 4814.55 2584 4913.85 2614 4811.55 2628 4811.05 2698 4811.05
2�20 4812.55 2761 4814.25 2829 4814.75 3029 4814.25 3188 4814.35
324� 4819.55 3429 4819.25 3629 4819.55 3804 4819.95 3812 4822.45
3820 4820.05 3828 4821.25 3855 4821.25 386� 4820.45 3878 4821.45
4029 4822.45 4091 4822.25 4108 4823.55 4125 4818.85 4135 4876.85
4157 4823.35 4231 4822.85 4430 4823.25 9631 4823.65 4739 4823.85
4768 4826.45
Manning�s n Values �um= 3
Sta n Val Sta n Val Sta n Val
+...x�x...+a++...a.x.....x.:�+..+..x..x.:x.xxwx:
1200 .07 1483 .04 1560 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
7483 1560 393.5 480 405 .1 .3
CROSS SECTION OUTPUT Profile p100 year
M1fh�ii+#k!*11itRx4h*4ii4#41#fiM*f!#11kif11T1x1hk1ix1fi1144fW14iiii4#i1Y#41##iiYfiY{I!!##R1f#fY
* E.G. Elev (ft) * 4818.09 * Element � Left OB � Channel * Right 06 *
+ Vel Head (ft) * 0.14 * Wt. n-Val. * 0.070 * 0.040 • 0.070 +
* W.S. Elev Ift) + 4817.95 � Reach Len. (ft) * 393.50 + 480.00 * 405.00 •
" Czit W.S. (f[) • * Flow Area (sq fU ' 38.03 * 502.11 * 6365.85 •
� E.G Slope (ft/ft) *0.001785 • Area (sq ft) + 38.03 * 502.11 a 6365.85 •
+ Q To[a1 (cfs) *16700.00 • Flow (cfs) * 33.51 • 2732.76 •13933.72 •
J • Top width (ft) R 1784.85 " Top Width (fU * 39.00 • 77.00 * 1668.85 *
Page 58
STVRAIN.rep
* Vel Total (ft/s) " 2.42 * Avg. Vel. (ft/5) t 0.88 " 5.44 * 2.13 *
� * Max Ch1 Dpth (ft) * 7.10 � Hydr. Depth (ft) * 0.98 t 6.52 * 3.81 *
* Conv. Total Icfs) *395239.6 � Conv. (cfs) * 793.2 * 646�6.5 *329770.0 •
r Length wtd. 1fU * 41�.89 " we[ted Per- (ft) x 39.05 * 77.�6 * 1669.82 *
' Min Ch E1 (ft) ' 4810.85 " SheaY (lb/sq ft) ' 0.11 • 0.72 * 0.42 *
* Alpha � 1.51 * Stream Power (lb/ft s) 3 0.10 * 3.92 * 0.93 *
* Frctn Loss (ft) * 0.80 * Cum Volume (acre-fU * 695.13 * 320.99 * 759.35 '
� C 6 E Loss (ft) " 0.00 * Cum SA (acres) * 229.38 ' 40.57 ' 237.70 '
w..:.:.+..«:.....:..:r«+xw::.::.i:...�xx.x�xx=+.rxt++a++ix.xafx+rw...:..��:t,ir+��+y+ai�x.+..�x
CAOSS SECTION OOTPOT Profile #500 year
�x..+:.a....:..+...+........+:..::++..a..ax«xxx�,:...:+a.+...x..wr........,.x.+«..+..r...+..+..
� E.G. Elev (fU * 4820.79 * Element * Left OB ` Channel * Right OB *
* Vel Head (ft) " 0.28 * Wt. n-Val. ` 0.070 ' 0.040 " 0.070 *
* W.S. Elev (fU ' 4820.51 * Aeach Len. (ft) ` 393.50 * 480.00 * 405.00 "
* Crit W.S. (ft) * " Flow Area (sq EU • 203.90 * 699.38 '11261.�3 *
t E.G. Slope (ft/f[) R0.002635 # Area (sq fU • 203.90 * 699.38 *11261.73 '
* Q Total (cfs) '41960.00 * Flow (cfs) ' 3�6.�4 " 5�6�.45 '35815.81 '
* Top Width (ft) # 2445.40 * Top Width (ft) * 92.23 * 77.00 * 22�6.17 *
• Vel Total (ft/s) * 3.45 � Avg. Vel. (ft/s) * 1.85 • 8.25 * 3.18 *
� Max Chl Dpth (ftl * 9.66 * Hydr. Depth (fU ` 2.21 * 9.08 � 4.95 *
* Conv. Total (cfs) *817449.4 ' Conv. (cfs) ' 7339.6 *112359.3 •697750.5 *
' Length Wtd. (ft) * 414.96 * Wetted Per. (ft) * 92.34 * 77.76 ' 2277.80 *
* Min Ch E1 (ft) • 4810.85 * Sheaz (lb/sq ft) * 0.36 ' 7.48 * 0.81 *
* Alpha * 1.51 * Stream Power (1L/ft s) " 0.67 � 12.20 * 2.59 *
* Frctn Loss (ftl * 1.04 • Cum Volume (acre-ft) � 1301.16 * 429.31 � 1440.73 *
' C & E Loss (ft) * 0.01 • Cum SA (aCYes) ' 253.8� * 40.92 • 321.14 *
���i++xw�yw...+kx�+.xxw..x.xxrrxfi:.s�+t�ixxwK.. :s.�+x+t�++i����x�x++rw�i+t��i+tr�.r�.wax+.rK
Warning: Divided flow computed for this cross-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m1 . between the current and previous cross
section. This may indicate [he need for additional cross sections.
CROSS SECTION OUTPUT Profile #10 year
++xx.wi+.+..+{x��{it::�r�«.y+x�xx�i.++t:.:�++a++xxx+.x.:x:.::�ts++ti�F.R�»r.wr�*�x++�ki�x+a+tar+
* E.G. Elev (ft) * 4816.15 • Element ' Left OB ' Channel * Righ[ OB *
� Vel Head (ft) * 0.09 • Wt. n-Val. ' 0.0�0 • 0.040 * 0.0�0 *
* W.S. Elev (ft) * 4B16.06 ' Reach Len. (fU • 393.50 * 480.00 ' 405.00 `
� * Crit W.S. (ft) * * Flow Area (sq ftl * 0.03 t 356.49 • 3230.16 *
* E.G. Slope (ft/fU •0.001�09 * Area (sq ft) • 0.03 * 356.49 " 3230.16 *
' Q Total (cfs) * 5950.00 " Flow (cfs) * 0.00 * 1510.84 * 4439.15 *
* Top Width (ft) * 172S 57 ' Top Width (fU ' 1.18 { ��.00 • 1647.39 •
* Vel Total (ft/s) * 1.66 ' Avg. Vel. (ft/s) • 0.�8 * 4.24 * 1.37 •
* Max Chl Dpth (ft) * 5.21 • Hydr. Depth (ft) ` 0.03 * 4.63 * 1.96 *
* Conv. Total (cfs) R143923.8 ' Conv. (cfs) * 0.1 ' 36545.6 *107378.2 *
* Length Wtd. (ft) * 424.78 R wetted Per. (ftl " 1.18 • 77.76 i 1648.28 *
� Min Ch E1 (ft) * 4810.85 � Shear (lb/sq f[) * 0.00 ' 0.49 * 0.21 *
{ Alpha * 2.1� k Stream Power (lb/ft s) R o.00 � 2.0� * o.a9 *
* Frctn Loss (EU * 0.76 • Cum Volume (acie-ft1 ' 269.43 * 220.21 * 335.58 �
* C & E Goss (Et) ` 0.00 • Cum SA (acres) • 157.83 ' 39.06 ' 150.37 *
4iittytfttttttxfx�x4xA�RlRRxt£fttifYt₹4flthkxxxAx?fttt+###4##+1S##*i4#t###�AFlfktt+#k##t##aYrt*•
CROSS SECTION OUTPUT Pmfile #50 year
I4lxT4FYifYlY4tii1##ii##1+i#t�Ii*AF�Iki�ixkif4iiti1xx1AfxlF�fk�*f*xk#YM#4i%41k14f1Tfxfft*1FliR*
* E.G. Elev (ft) * 4617.47 � Element * Left OB • Channel T Right OB *
3 Vel Head (ft) * 0.12 t Wt. n-Val. + 0.070 � 0.040 * 0.070 *
* W.5. Elev (ft) * 4817.35 " Reach Len. (ft) • 393.50 * 480.00 ' 405.Oo R
' CZit W.S. (ft) * ' Flow AYea (Sq ft) � 18.12 � 455.60 * 5359.93 •
* E.G. Slope (ft/fU *0.001792 " Area (sq fU * 18.12 r 455.60 k 5359.93 *
* Q Total (cfsl *12850.00 ' Flow (cfs) * 12.50 t 2328.35 *10509.16 •
* Top Width (Pt) * 1765.92 � Top Width (ft) * 26.92 • 77.00 * 1662.00 t
• Vel TOtal (ft/s) * 2.20 � Avg. Vel. (ft/S) * 0.69 R 5.11 * 1.96 �
* Max Chl Dpth (ft) * 6.50 ` Hydr. �epih (ft) * 0.6� * 5.92 * 3.22 `
* Conv. Total (cfs) *303561.0 � Conv. (cfs) * 295.2 � 55003.5 *248262.3 *
R Length Wtd. (ft) R 419.47 � Wetted Per. (ft) ' 26.96 * 77.76 * 1662.94 *
* Min Ch E1 (ft) * 4610.85 ` Shear (lb/sq ft1 * 0.08 * 0.66 * 0.36 *
* Alpha k 1.62 ` Stream Power (lt/ft s) * 0.05 * 7.35 • 0.71 *
* Frctn Loss (ft) * 0.84 � Cum Volume (acre-ft) F 553.12 * 290.69 * 621.81 *
* C & E Loss (fU * 0.00 * Cum SA (acres) * 177.58 t 40.34 • 172.63 *
.++.x...x.:x::.:..:...+...+:........:�.....x+..:.,.x..++.x.....+.........++:w:x..::..:.:.:..x::
CROSS SECTION
Page 59
STVRAIN.rep
RIVEA: St. Vrain RiveY
� REACH: FULL RNER RS: 64120
INPUT
Description: This is an interpolated cross-section between XS 64600 and XS
63640.
Station Eleva[ion Data num= 96
Sta Elev Sta Elev Sta Elev Sta Elev Sta elev
........:.:x...x....,...xx...x..x......x.:a..+r.«...xwx..xx..:s:+x.x+..::x.+.++.
1195 4824.8 1195.0� 4824.8 1195.1� 4824.�9 1211.5 4823.52 1225.84 9822.33
1242.34 4B21.15 1252.�6 4820.6 1283.95 4819.44 1316.94 4818.35 132B.6B 4817.89
1337.75 481�.55 1361.69 4816.4� 1398 4814.5 1416.5 4810.2 1442.78 4810.2
1468 4810.2 1480.5 4811.48 1516.5 4812.73 1521.12 4812.77 1527.4 4812.62
� 1541.43 4813 1541.SB 4813 1594.97 4813.89 1596.12 4813.9 1621.21 4814.51
1642.05 4B14.56 1654.98 4614.48 1672.48 4814.3� 1731.6 4814.1 1781.56 4814.17
1837.19 4813.49 16BB.46 4813.57 1914.39 4813.5� 1995.62 4873.57 2007.62 4812.73
2015.93 4813.49 2031.63 4812.45 2044.55 4813.51 2100.86 4813.65 2105.52 4813.65
2200.42 4813.55 2295.5 4813.62 2322.59 4813.56 2425.82 4813.14 2453.51 4811.94
2466.44 4811.67 2531.06 4811.57 2542.93 4811.99 2551.37 4812.32 2589.22 4813.28
2631.29 4813.5� 2649.83 4812.99 2651.99 4813 2670.55 4812.97 26B9.1 4813.55
2763.27 9813.35 2836.62 9813.25 2919.25 4813.28 2944.34 4812.19 2967.25 4812.19
�978.16 4812.2 2983.41 4812.37 3015.24 4814.92 3037.87 4816 3198.5 4B15.86
3205.89 4815.52 3232.31 4814.37 3280.31 4815.�1 3390.52 4816.12 3417.75 4816.23
3552.0] 4876.71 3559.46 481�.98 3566.89 4816.79 3574.23 4817.41 3599.15 481�.47 �
3610.23 4817.09 3620.39 4817.62 3634.81 4817.7 3727.53 4819.23 3759.79 4819.53
3817.02 4819.76 3832.71 4820.5 3848.41 4818.24 3850.79 4818.25 3857.64 4818.26
3877.95 4820.54 3946.26 4820.38 4066.9� 4820.68 4129.97 4820.75 4289.29 4820.92
4315.53 4821 43�3.28 4821.16 4409.28 4823.19 4415.23 4823.26 4423.46 4823.75
4442 4824.65
Manning's n Values num= 3
Sta n Val S[a n Val Sta n Val
i+i*KY�1f4kktYhtt*A#+#f}wffh4tF1R4Atifttx4kk+##*
1195 .07 1398 .04 1480.5 .07
Hank Sta: Left Right Lengths: Left Channel Aight Coeff Contr. Espan.�
1398 1480.5 393.5 480 405 .3 .5
:� Ineffective Flow num= 1
Sta L Sta R Elev Permanent �
� 3152 4442 4817.5 F
CROSS SECTION OUTPUT Profile #100 year
:.:x.x::,xx:.x+..x.a.r..xxx.....+........ww..w.x.+......�.x.xx+x.+:..++.:.........r.:.xt..•w.k>
* E.G. Elev (ft) * 4817.28 ' Element • Left OB R Charmel * Right OH *
a Vel Head (ft) * 0.16 + Wt. n-Val. * 0-070 ' 0.040 * 0.070 '
* W.S. Elev (ft) * 481�.12 * Reach Len. (ft) ' 393.50 * 480.00 * 405.00 *
* Crit W.S. (ft) * 4815.32 ' Flow Area (sq ft) * 64.22 ' 523.40 * 6001.17 R
* E.G. Slope Ift/ft) *0.002076 � Area (sq ft) * 64.22 a 523.40 * 6475.48 *
* Q Total (cfs) '16700.00 ` Flow (cfs) * 72.56 * 3022.07 *13605.37 *
* Top Width (fU ' 2214.94 • Top WidGh (ft) * 50.80 * 82.50 * 2081.65 *
* Vel Total (ft/s) * 2.53 ' Avg. Vel. (ft/s) * 1.13 • 5.77 * 2.29 �
* Max Chl Dp[h (ft) � 6.92 • Hydr. �epth (fU * 1.26 * 6.39 * 3.59 *
* Conv. Total (c£5) *366566.1 * Conv. (cfs) * 1592.6 • 66334.7 *298638.8 •
' Length Wtd. (fU ' 418.37 * Wetted Pei. (ft) x 50.87 ' 83.06 • 1671.92 *
r Min Ch E1 (ft) + 4810.20 * Shear (1b/sq ft) ' 0.16 * O.B2 • U.4� *
' Alpha * 1.59 ' Stream Power (lb/ft s) ^ 0.18 * 4.71 * 1.05 *
+ Frctn Loss (ft) • 0.84 ' Cum Volume (acrE-ft) * 694.67 R 315.34 * 699.65 *
* C & E Loss (fU * 0.01 ' Cum SA (actes) • 228.97 • 39.69 * 220.26 *
!M*114xtAxlxxxtAxxRITR1fR*kllitifY41x�1i1ifiYif11R1##1Wiff!!4#++Y#li11Yfl11iMRxRxtkF##I#i*i#1Y4
Warning: Divided Elow computed for this cross-section.
Note: Multiple critical depths were found a[ this location. The czitical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT PYofile �500 yea2
♦::rtxwkx�xx:+t+x��s�t+r+xw+����x�+*+r+�wx+++++�aaw���++�i��a��x�w++i�r*i��rrr�x+��i+i*�+Mr�ia•
* E.G. Elev (ft) * 4819.74 * Element * Left OB * Channel � Right OB `
* Vel Head (ft) * 0.25 * Wt. n-Val. * 4.0�0 * 0.040 • 0.070 *
* W.S. Elev (ft) * 4819.49 • Reach Len. (ft) • 393.50 * 480.00 + 405.00 •
* Crit W.S. (fU • 4816.76 * Flow Area (sq ft) * 256.95 • 718.90 �11678.48 •
* E.G. Slope (ft/fU *0.002396 * Area (sq Et) • z56.95 * 718.90 'S1678.48 •
' • Q Total (cfs) *41960.00 * Flow (cfs) * 454.71 � SR0.14 *35995.14 *
. * Top Width (fU * 2502.24 • Top Width Ift) 115.48 82.50 * 2304.26 *
Page 60
STVRAIN.rep
� * Vel To[al (ft/s) * 3.32 ' Avg. Vel. (ft/s) * 1.77 * 7.66 * 3.08 *
' Max Chl Dpth (ft) * 9.29 * Hydr. �epth (ft) ' 2.23 * 8.71 * 5.07 '
' Conv. Total (cfs) *857295.8 * Conv. (cfs) * 9290.3 'll2579.2 *735426.3 �
� Length Wtd. (EC) * 414.63 ' Wetted Per. (ft) * 115.59 ' 83.06 a 2305.16 *
* Min Ch E1 (ft) ' 4810.20 * Shear (lb/sq ft) * 0.33 * 1.29 ` 0.76 '
= Alpha + 1.45 * Siream Power (lb/ft s) * 0.59 t 9.92 * 2.34 *
� Frct❑ Loss (ft) * 0.9� " Cum Volume (acre-ft) * 1299.10 * 421.50 * 1334.09 �
* C & E Loss (ft) i 0.01 * Cum SA (acres) * 252.93 � 39.54 " 299.65 *
x..x.:::.:x.......+...a:....a...x.+.....x..+..++x,....x:<::.x.+..+.:..:..:.+.........+..+.....+
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at [his location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #10 year
wKxx.:wrxxxxxxx++rri.x+r�wRrrx�rti.�.�..:x�r3+3+:+:R:.i*i.�++�w++r.i�r+i.xxx�Rxw.xax�x�wx«wrxi+•
* E.G. Elev (ft) " 4815.39 * Element t Left OB * Channel * Right 08 •
* Vel Nead (f[) � 0.10 � Wt. n-Val. ' 0.070 " 0.040 * 0.070 *
* W.S. Elev (ft) � 4815.28 ' ReaCh Len. (ft) ` 393.50 * 480.00 * 405.00 *
* Ciit W.S. (fU ' 4614.40 * Flow Area (sq £U * 5.62 ' 371.42 ' 3003.55 '
� e.G. Slope (f[/fU *0.001888 R Area (sq ft) " 5.62 * 371.42 R 3027.95 �
� Q Total (cfs) t 5950.00 * Flow (cfs) + 2.77 * 1627.36 * 4319.87 *
* Top Width (ft) * 1692.�8 * Top Width (Ft) * 14.40 * 82.50 a 1595.89 �
* Vel Total (ft/s) ' 1.76 t Avg. Vel. (ft/s) � 0.49 ' 4.38 * 1.44 *
* Max Chl Dpth (ft) * 5.08 ' Rydr. Depth (ft) * 0.39 * 4.50 * 1.95 *
* Conv. Total (cfs) "136923.3 • Conv. (cfs) * 63.7 * 37449.4 * 99410.2 *
* Length Wtd. (ft) � 428.84 ' Wetted Per. (ft) * 14.42 * 83.06 * 1542.71 i
R Min Ch E1 (fU * 4810.20 * Shear (lb/sq fU * 0.05 x 0.53 " 0.23 i
* Alpha * 2.18 * Stream Power (lb/ft s) * 0.02 t 2.31 • 0.33 {
* Frctn Loss (ft) ' 1.40 ' Cum VOlume (aCie-ft) • 269.41 * 216.20 • 306.49 '
* C & E Loss (ft) * 0.0� " Cum SA (acres) * 157.76 * 38.18 * 135.30 •
kxxxxxw,.x:xx+rx+w.wrxKxx�+w.rR+::.ir:::...:.�++tt+s+�xx.�t.xx�.xx+aa+��+++�rw��.xwxxw.w...�wa+
Warning: Divided flow computed for chis cross-section.
Warning: The conveyance ratio (upstxeam conveyance divided by downstream conveyance) is less than
0.� or greater than 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
' section. This may indicate the need for additional cross sec[ions.
Note: Multiple critical depths were found at this location. The critical depth with ihe lowest,
valid,
water surface was used.
CBOSS SECTION OUTPUT Pio£ile p50 year
�x:w:x:xxxx.+i:r:i:xxxRxw+:.r.x.r...ax.t++t++..w.+.:.sw.:xw::.w+xx::x+.xxx»xr�xx+x��.xx+wtia:a�:
* E.G. Elev (ft) ' 4B16.62 • Element * Left OB ' Channel * Right OB '
� Vel Head (ft) * 0.15 t Wt. n-Val. * 0.070 " 0.040 ' 0.070 *
* W.S- Elev (ft) * 4816.49 ' Reach Len. (£t) � 393.50 * 480.00 � 405.00 *
' Crit W.S. (ft) ` 4815.06 ' Flow Area (sq ft) * 35.68 " 4fi9.30 " 4905.06 •
• E.G. Slope (ft/fU '0.002275 * Area (sq ft1 * 35.68 * 469.30 * 5123 JO •
* Q Total (Cfs) *12850.00 * Flow (Cfs) ' 35.70 • 2637.63 �'10176.67 *
* Top width (ft) * 2122.56 * Top width (ft) * 36.2� * 62.50 • 2003.80 *
* Vel Total (ft/s) * 2.38 + Avg. VeL (ft/s) * 1.00 • 5.62 ' 2 07 t
+ Max Chl Dpth (ft) * 6.27 • Hydr. Depth (ft) * 0.98 rt 5.69 t 2.93 *
^ Conv. Total (cfs) '26943�.6 • Conv. (cf5) • 748.5 ' 55305.6 *213383.5 *
* Length Wtd. (ft) * 420.27 * Wetted Per. (ft) * 36.32 * 83.06 ' 1671.92 *
* Min Ch E1 (ft) " 4810.20 � Shear (lb/sq ft) * 0.14 • 0.80 � 0.42 *
* Alpha ' 1.75 * Stream Power (lb/£t s) � 0.14 + 4.A ' 0.86 *
* Frctn Loss (£t) * 0.98 * Cum Volume (aCie-Tt) * 552.87 * 2B5.59 ' 573.08 *
* C & E Loss (ft) * 0.00 • Cum SA (acres) * 177.29 * 39.46 � 155.59 *
##44Y4+Y4##ii#4##ihlMklxxRx}k4fAxlf++fk1414lt14F#iiii#iYtxii##itFi+#�#hfsfl4lk44k*#+4*1x44*f11i
Note: Multiple czitical depths were found at this location. The critical depth with the lowest,
valid,
watei surface was used.
CROSS SECTION
AZVER: St. Vrain River
REACH: FULL RIVER RS: 63640
INPUT
e De9Cziption:
Page 61
STVRAIN.rep
Sta[ion Elevation Data num= 46
' Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
...x.,«:.,....:.,.+.+.....::,..,:r...x.xa..w+.....x:++a:..x..:.:.x.....+.::.....
1190 4820.3 ll90.1 4820.3 1200 4819.5 1225 4917.1 1271 4815.1
1291 4814.4 1313 4813 1333 4809.55 1387 4809.55 1901 4811.95
1434 48ll.85 1444 48ll.25 145� 4811.95 1507 4813.25 1530 4814.25
15�� 4814.05 1677 4814.05 1728 9B12.55 1775 4812.45 1974 4812.75
2061 4812.55 2173 9812.�5 2375 4812.05 2456 4812.55 2473 4011.25
2492 4811.25 2509 4912.45 2577 4812.25 2720 4812.25 2743 4810.05
2764 4810.05 2�74 4810.05 2808 4812.45 29�6 4812.45 300� 4809.45
3051 4812.05 3177 4812.85 3376 4813.85 3461 4816.25 3574 981�.65
37�2 4818.25 3976 4818:25 4053 4818.55 4086 4822.55 4099 4822.85 '
4116 4B22.B5
Manning's n Values num= 3
Sta � Val Sta n Val Sta n Val
:::::.:xx+.�t:.++rri���x�.wrxttrii::ii.:ti�x+�x:
1190 .0� 1313 .04 1401 .0�
6ank Sta: Left Right Leng[hs: Left Channel Aight Coeff Contr. Expan.
1313 1401 490 462.5 415 .3 .5
Ineffective Flow num= 1
Sta L S[a R Elev Permanent
2992 4116 4817.5 F
CROSS SECTION OUTPOT PYOfile W100 year �
..::::...x.:.:::::,:.:::.::+:.:+>:...,.x...w..>x....:.........w...++.....r.x.+++..++.a+.+...x.+
* E.G. Elev (fU • 4816.44 * Element * Left OB * Channel * Right OH *
� Vel Head (fU ' 0.15 ' Wt. n-Val. * 0.070 ' 0.040 ' 0.070 *
* W.S. Elev (ft) * 4816.29 * Reach Len. (ft) * 490.00 * 462.50 • 415.00 *
• Crit w.S. Ift) * a814.45 � Flow area (sq ft) • 103.93 * 541.66 * 6009.46 *
+ E.G. Slope (ft/ft) '0.001936 � Area (sq ft) ' 103.93 ' 541.66 * 7518.37 *
* Q Total (Cfs) '16700.00 � Flow (Cf51 * 127.05 ` 2962.38 �13610.56 '
� Top Wid[h (ft) ' 2220.40 ' Top Width (ftl * 69.32 w 88.00 * 2063.07 `
• Vel To[al (ft/S) ' 2.51 * Avg. Vel. (ft/S) • 1.22 ' 5.47 w 2.26 '
' Max Ch1 Dp[h (ft) * 6.84 * Hydr. Depth (ft) * 1.50 ' 6.16 ' 3 JB *
* Conv. Total (cfs) r379547.3 • Conv. (cfs) * 288�.6 * 67327.2 *309332.5 t
. ' Length Wtd. (fU " 422 JS * Wetted Per. (fU * 69.41 * 88.50 * 1591.46 "
* Min Ch E1 (ft) ' 4809.55 * Shear Q6/sq ft) " 0.18 * 0.74 * 0.46 *
* Alpha * 1.51 * Stream Power (lb/ft s) � 0.22 * 4.05 * 1.03 *
* Frctn Loss (ft) k 0.54 * Cum Volume (acre-fU ' 693.91 * 309.47 * 634.60 •
* C & E Loss (ft) * 0.04 * Cum SA (acres) * 228.43 " 38.75 * 201.00 R
....«.,.+.x........+....:..+a:....:.....«..:+.......x.,x.:x.xx.x.x..,...�...x...+��..x:+x..:..:
Warning: The conveyance ratio (upstream conveyance divided by downstream mnveyance) is less than
0.7 or greater than 1.4. This may indicate the need foz additional cross sections.
warning: The cross section had to be ex[ended vertically during the critical depth calculations.
Note: Mul[iple critical depths were found at this location_ The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Pro£ile #500 year
+t«irit�:++���+rF����ixtx��a�>+tr��i+tixxwif�wwxx�+t+it.t�ir*�+w*���xirxrraaRxwxxwxx K�x�xrxtx
* E.G. Elev (ft) * 4818.�5 * Elemeat * Left OB • Channel ' Right OH *
* vel Head (ftl * �.22 * Wt. ❑-Val. * 0.070 * 0.040 i 0.07� *
* W.S. Elev (f[) * 4818.53 * Reach Len. (ft) • 490.00 * 462.50 * 415.00 •
* Crit W.S. (ft) ' 4815.�5 * PloW ATea (Sq ft) • 304.52 * �39.15 *12503.13 *
* E.G. Slope (ft/ft) *0.002309 * Area (sq ft) • 304.52 * 739 15 *12503.13 *
* Q Total (cfs) '41960.00 * Flow (cfs) � 639.41 * 5430 J9 *35889.80 *
' Top Width (ft) * 2838.40 ' Top Width (ft) * 102.92 * 88.00 • 2647.49 *
t Vel Total (ft/s) * 3.10 * Avg. Vel_ (ft/s) * 2.10 * 7.35 * 2.87 �
� Max Ch1 Opth (fU * 9.08 * Hydz. Depth (ft) * 2.96 • 8.40 ; 4.72 '
� Conv. Total (cfs) •873304.3 * Conv. (cfs) * 13307.9 •113029.9 '�46966.6 ^
* Length Wtd. (ft) * 420.39 * Wetted Per. (Et) ' 103.09 * 88.50 * 2648.14 �
* Min Ch E1 (ft) • 4809.55 • Shear (lb/sq fU ' 0.43 " 1.20 * 0.68 •
* A1pha ' 1.47 • S[ream Power (lb/ft s) * 0.89 * 8.84 * 7.95 *
* Frc[n Loss (fU * 0.42 • Cum Volume (acre-ft) * 1296.56 ' 413.46 * 1221.67 *
* C & E Loss (ft) * 0.08 • Cum SA (acres) * 251.94 ' 38.60 ` 276.83 *
##FZIi1tiI4##WifIiY4�f�*Aflxki;4ilfifii1111f1fFtMf+#Ytifi*+Atx4f41#i1#1f1xI1il14**4>*1!#/*1#4#+
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greatez [han 1.4. This may indicate the need for additional cross sections.
Warning: The cross section had to be extended vertically during the critical depth Calculations.
.' Note: Multiple critical depths were found at this location. The critical depth with the lowest,
Page 62
STVRAIN.rep
valid,
' water surface was used.
CROSS SECTION OUTPUT Profile N10 year
�.�...x.+++ia:+:.:.:...t,::..+++i+.air:r+x�wr:�R++.::.t:.rrxx.��i++++rf..��wR:.ia«w�+k++iFar+...�.
* E.G. Elev (ft) * 4813.93 * Element ' Left OH * Channel * Right OB *
+ Vel Head (f[) * 0.32 � Wt. n-Val. ' 0.0']0 * 0.040 ' 0.070 "
� W.S. Elev (ft) � 4813.60 ' Reach Len. (f[) • 490.00 * 462.50 * 415.00 •
* Crit W.S. (£t) * 4812.25 * Flow Area (sq ft) * 2.86 * 305.38 * 7816.12 *
* E.G. Slope (ft/ft) '0.006929 * AYea (sq ft) * 2.86 * 305.38 ' 2194.75 •
* Q Total (cfs) * 5950.00 * Flow (cfs) • 2.27 ' 2156.24 * 3"191.50 •
* Top Width (fU " 1846.24 * Top Width (ft) * 9.40 * 88.00 * 1948.76 •
* Vel Total (ft/s) • 2.80 * Avg. Vel. (ft/s) x 0.79 * 7.06 * 2.09 *
• Max Chl Dpth (ft) * 4.15 x Hyd2. �epth (ftI • 0.30 * 3.47 * 1.28 *
� Conv. Total (cfs) t 71481.4 * Conv. (cfs) * 2"1.2 * 25904.3 • 45549.8 *
' Length Wtd. (fU ' 42Z 28 * wetted Per. (Et) * 9.50 * 88.50 * 1414.37 �
* Min Ch E1 (ft) * 4809.55 * Shear (lb/sq ft) * 0.73 * 1.49 * 0.56 t
* Alpha t 2.66 * Stream Power (lb/ft s) � 0.10 * 10.54 * 1.16 t
* Frctn Loss (ftI * 0.77 + Cum Volume (acre-ft) * 269.37 * 212.47 * 282.21 '
' C S E Loss (fU ' 0.14 � Cum SA (acres) ' 157.65 * 37.24 * 119.75 '
i:t.:+:+.::.:::::a..�.+rt�+::.:�x�{i�x+a+x.+w�+x+..+:�+3�i+a�i�raix+twaxa:.x+++x���*at+*x.w»y+x
Warning: Divided flow computed for this cross-section.
Warning: The conveyance ratio (upstream conveyance div:ded 6y downstream conveyance) is less [han
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
water surEace was used.
CAOSS SECTIDN OUTPUT Profile µ50 year
rrw.x+i�:.:x::.xr:xx:.:+...:�t��t�ta�t++iawrxxw�.t+t�:.+�y.+xi+xxrtxx.:,���:x�t+3+t�+3a+.r�+aa*x
' E.G, Elev (ft) * 4H15.65 • Element ' Lef[ OB * Channel * Right OB '
' Vel Nead (fU * 0.15 * W[, n-Val. * 0.070 * 0.040 * 0.070 •
� W.S. Elev (ft) * 4815.49 * Reach Len. (f[) • 490.00 * 462.50 * 415.00 '
• Crit W.S. (ft) * 4814.05 * Flow Area (sq fU ' 56.14 * 471.80 * 4746.29 '
• E.G. Slope (f[/ft) *0.002378 • Area lsq ftl * 56.14 * 471.80 * 5892.90 *
• Q Total (cfs) +12850.00 '� Flow (cfs) ' 61.85 * 2608.26 *10179.88 `
+ Top width (ftl * 2172.29 * Top Width (fU ' 51.06 * 88.00 k 2033.23 •
� + Vel Total (ft/s) * 2.44 � Avg. Vel. (ft/s) • 1.10 * 5.53 * 2.14 *
" Max Chl ➢pth (f[) * 6.04 • Hydr. �epth (ft) ' 1.10 • 5.36 * 2.98 •
* Conv. Total (cfs) '263502.1 + Conv. (cfs) * 1268.4 * 53485.1 "208748."/ •
* Length Wtd. (fU * 423.49 * Wetted Per. IfU ' 51.13 * 80.50 * 1591.46 *
* Min Ch E1 (ftI F 4809.55 * Shear (lb/sq fU * 0.16 * 0.79 * 0.44 *
• Alpha x 1.66 • Siream Power Qb/ft s) * 0.18 * 4.38 * 0.95 *
+ Frctn Loss (fU ' 0.61 ' Cum Volume (acre-ft) * 552.46 * 280.41 * 521.87 *
* C & E Loss (fU • 0.04 * Cum SA (aCres) '� 1"/6.90 * 38.52 * 136.82 *
*rxw�x:+xkR.r+xr,xw»ix�w.xx�x;�:�ta�++�r�i��ry:r:�+:++++�++i++�>.r�r«..r�x+.�a�k+�������++a�+�axw
Warning: The conveyance ratio (upstzeam conveyance divided by downstream conveyance) is less [han
0.7 or greater than 1.4. This may indicate the need Eor additional cross sections.
Warning: The cross section had to be extended vertically during the critical depth calwlations.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 63177.5
INPUT
Description: This is an interpolated cross-section between XS 63640 and XS
62715.
Station Elevation Data num= 86
Sta Elev Sta EleV Sta Elev Sta Elev Sta EleV
##�1!#**k1#'I*#1#+k1l11*###Y+iii#Yiiif1t141A11A:!'.lfR}fM1f41lR�.ttt#ifTFtit+kt4fi*f#4Y
1158 4828.65 1158.14 4828.64 1171.7 4827.64 1205.95 4824.92 1236.74 4823.06
1260.96 4820.37 1296.36 4818.17 1310.75 4816.87 1326.5 4015.13 1348.5 4807.67
1375.5 4807.67 1405.43 4809.45 1418 4812.12 1452.59 4812.94 1461.6 4B12.42
1474.81 4812.12 1491.99 4812.48 1558.04 4813.12 1598.43 4813.62 1650.53 4813.52
1689.9 4813.52 1782.65 4813.25 1850.03 4812.3 1912.12 4812.0'1 2026.96 4811.79
2756.48 4813.86 21�5.04 4873.53 2223.24 4812.58 2280.36 4807.28 2289.98 4807.27
,� 2437.95 4807.38 2547.43 4807.23 2596.51 4812.42 2613.4 4812.89 263'/.53 4809.86
Page 63
STVRAIN.rep
2687.41 4808.55 269�.06 4808.46 2701.08 4808.46 2704.83 4808.47 2717.1� 4806.58
� 2735.6� 4809.5� 2753.37 4811.14 2796.81 4815.49 2811.84 4814.49 2834.3 4812.29
2859.41 4810.55 2881.8� 4809.6 2883.69 48�9.47 2952.07 4808.9 2964.13 4808.88
2971.71 4808.88 3006.77 4808.88 3160.63 4808.88 3165.24 4908.71 3191.02 4807.7�
3218.77 4807.�� 3231.98 480�.77 3276.9 4808.98 3326.94 4808.98 3498.86 4808.98
3539.81 480�.48 359�.94 4808.77 3764.41 9809.17 3935.9 4809.5 3989.8 4817.6
402�.33 4817.32 4042.89 9817.39 4075.07 4816.83 4139.63 4818.17 4211.02 4819.21
4288.92 4819.11 4291.46 4819.1 4322.03 4820.09 4332.49 4817.6 4341.34 4817.61
9357.43 4820.18 4452.35 4820.64 4550.51 4820.75 4612.43 4820.75 4774.93 4820.25
4820.04 4820.26 4921.77 4820.45 4935.82 4821.09 4965.36 4822.49 4982.54 4822.67
5005 4822.7
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
..+�....++......:........+..................++.:
1158 .07 1326.5 .04 1418 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. � EzPan.
1326.5 1418 490 462.5 415 .3 .S
Ineffective Flow num= 1
Sta L Sta R Elev Pexmanent
3079 5005 4817.5 F
CROSS SECTION OOTPUT Profile p100 yeaz
+a++*t3+:�wxxw+.r++::irrr��:�:s+xi+ia��+�ks�rt�t�:F�sstt+rt�i+++w++r��rwarr««�+�.+x�sfrx«.*�+
• E.G. Elev (ft) * 4815.86 * Element ' Left OB + Charmel � Right OB *
* Vel Head (fU + 0.08 • Wt. n-Val. * 0.070 * 0.040 * 0.0�0 *
* W.S. Elev (ft) + 4815.�9 • Aeach Len. (fU ' 490.00 * 462.50 * 415.00 >
t Crit W.S. (ft) * 4811.01 * Flow Area (sq fU ' 1.95 * 594.77 ' �965.80 *
* E.G. Slope (ft/ftl •0.000900 " Area (sq fU * 1.95 * 594.�� •14055.50 *
* Q Total (cfs) *16700.00 • Flow (cfs) • 0.59 ^ 2282.47 t14416.94 +
• Top Widih (ft) • �657.17 • Top Width (fU * 5.94 * 91.50 • 2559.73 *
• Vel Total (ft/s) * 1.95 * Avg. Vel. (f[/s) * 0.30 * 3.84 * 1.81 =
' Max Chl Dpth (ft) * 8.56 * Hydr. ➢epth (ft) ' 0.33 ' 6.50 * 4.80 *
' Conv. Total (cfs) '556�30.3 • Conv. (cfs) • 19.6 * 76091.2 *480619.5 �
' Le�gth Wtd. (ft) ' 422.10 * Wetted Per. (ft) • 5.98 * 93.06 � 1662.33 *
• Min Ch E1 (ft) * 480�.67 � Shear Qb/sq ft) 3 0.02 * 0.36 * 0.27 *
� * Alpha + 1.27 * Stream Power (lb/ft s) * 0.01 k 1.38 * 0.49 *
� Frctn Loss (ftl ' 0.40 * Cum Volume (acre-ft) * 693.31 R 303.44 * 531.83 R
* C & E Loss (ft) ' 0.00 * Cum SA (acres) • 228.00 • 37.80 * 178.97 '
tllthti%Af+xf%1h11##1*#tii#>tttYllffit111Tx#1xx#}�#iii4tY#1#YYMl1l41xlxRlf#tA#if!#k!#Y4*ff+###♦
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPOT Pmfile #500 year
R�#ffYxf�i+#4+i14#Fi4i[#hi#tYYYiY1M1RYl114k1f1k#if4+i4i#4fl11+xxxtxllx#f11#4f####YYiflfAFxlxl4R
* E.G. Elev (ftl • 4818.26 * Element R Left OH * Channel * Right OH *
• Vel Head (ft) * 0.07 • Wt. n-Val. * 0.070 * 0.040 ' 0.0�0 '
* W.S. Elev (ft) * 4818.19 • Reach Len. (ft) ' 490.00 * 462.50 • 415.00 �
* Crit W.S. (£t) * 4813.46 * Plow Area (sq £t) * 44.05 * 914.45 *20346.51 '
* E.G. Slope (ft/f[) *0.000556 * Area (sq ft) • 44.05 * 814.45 *20346.51 •
x Q Total (cfs) '41960.00 ' Flow (cfs) • 28.17 * 3030.80 *38901.03 *
* Top Widih (ft) t 2859.58 * Top Width (ft) * 3U.35 * 91.50 * 2737.73 *
* Vel TOCal (ft/s) * 1.98 • Avg. Vel. (ft/s) * 0.64 * 3.72 * 7.91 •
* Max Chl Dpth (ft) * 10.96 * Hydx. Depth (ft) * 1.45 * 8.90 * 7.43 *
* ConV. TOGal (Cfsl *1778845.0 • Conv. (Cfs) * 1194.3 *12848�.0 "1649164.0 *
* Length Wtd. (ft) * 418.20 * Wetted Per. (ft) * 30.57 ' 93.06 * 2739.88 *
� ' Min Ch E1 (ft) � 4807.67 • Shear Qb/sq ft) * 0.05 � 0.30 * �0.26 *
* Alpha ' 1.12 • Stream Power Qb/ft s) • 0.03 * 1.13 * 0.49 �
• Frctn Loss (ft) * 0.17 k Cum Volume (acre-ft) " 1294.60 F 405.22 * 1065.19 *
" C s E Loss (ft) * 0.01 � Cum SA (acres) ' 2A.19 * 37.65 • 251.18 R
•xxx..xx:�.:.:xa.x.axx.:.:+...x�.x..+..+�:++..a++..w.i:+..+.«.a.��..;x.x+..+.+�.x+...++..�+++..
Warning: �ivided flow computed for this cross-section.
Note: Mvltiple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #10 year
h11111f*fifltihYkWY#i#kxxxfTf4i*Y#MY�YhYIf1#f�A4}4iW#41M1#1k�Y141f11fiRIIf#ix4Y111l4R1Rlf#fYhii
� E.G. Elev (ft) � 4813.02 * Element ` Left 08 " Channel � Right OB *
� • Vel Head (ft) * 0.04 * Wt. n-Val. • * 0.040 * 0.0�0 *
Page 64
STVRAIN.rep
� ' W.S. Elev (fU * 4812.97 * Reach Len. (fU * 490.00 ` 462.50 # 415.00 *
� " Crit W.S. (ftl * 4809.56 � Flow Area (sq ft) ' + 344.16 * 3524.46 *
� " E.G. Slope (ft/ft) *0.000813 * Area (sq fU ' ' 344.16 * 7111.52 T
* Q To[al Icfs) * 5950.00 * Flow (cfs) � t 916.40 * 5033.60 *
� Top width (ft) � 220B.4B t Top Width (ft) " * 85.14 • 2123.35 "
� Vel Total (ft/s) t 1.54 * Avg. Vel. (ft/S) • � 2.66 " 1.43 *
• Max Chl �pth (f[) + 5.�4 " Hydr. Depth (fU * ' 4.04 � 2.83 '
* Conv. Tota1 (Cfs) '208679.2 * Conv. (Cfs) � • 32140.1 +776539.1 •
{ Lengch wtd. (ft) • 422.95 � Wetted Per. (ft) * � 86.34 * 124a.41 +
* Min Ch E1 (tU � 4807.67 * Shear (lb/sq ft) * • 0.20 • 0.14 *
* Alpha + 1.19 ' Stream Power (lb/ft s) • * 0.54 ' 0.21 *
• fictn Loss (ft) + 0.31 " Cum Volume (acre-ft) ' 269.35 ` 209.02 ' 237.88 �
* C & E Loss (fU * 0.00 * Cum SA (acres) * 157.60 • 36.32 * 101.30 *
i:s�:�....*+�r�+::::.::xwxkx+.r.RK�..w<+.Kw.+wx+ww..�x.ww.xwarw�+w..K+r�w�Rrw.xrxrawWa��+.i�+.�
Warning: Divided flow computed for this cross-section.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPOT Profile p50 year
wr.w��k.�+.+aa+.x*xx.�+i++y+xa*x+ix+.++++++t++++�iii+x*�xi�.ia.++w�ixM.+x.xwat+r�+t*w+rai+«i+++
* E.G. Elev (ft) * 4814.99 * Element * Left OB * Channel * Right OB *
+ vel xead (fU � 0.0� * wt. n-val. * � 0.040 * 0.0�0 "
* W.S. Elev (ft) � 9814.92 • Reach Len. (ft) * 490.00 ' 462.50 ' 415.00 *
* Crit W.S. (ft) * 4810.56 3 Flow Axea (sq fU ' * 515 J6 * 6534.31 •
* E.G. S1ope (ft/fU *0.0009�6 ' Area (sq ft) * � A5.76 *11849.�6 *
* Q Total (cfsl *1Z850.00 " Flow (cfsl * * 1885.05 �10964.95 R
' Top Width (ft) > 2630.65 * Top Width (fU * * 90.89 ' 2539.76 *
* Vel Total (ft/s) * 1.82 * Avg. Vel. (ft/s) * * 3.65 • 1.6B *
* Max Chl Dp[h (ft) ' 9.69 * Hydr. Depth (fU * * 5.67 ' 3.97 '
* Co�v. Total (cfs) +410923.2 * Conv. (cfs) ' * 60281.0 •350642.2 *
' Length Wtd. (ft) * 422.33 * Wetted Per. (ft) • * 92.42 • 16a8.06 *
� Min Ch E1 (ft) * 480�.67 * Shear (lb/sq fU ' * 0.34 � 0.24 �
* Alpha * 1.31 * Stieam Power (lh/ft s) ' * 1.25 ' 0.41 *
• Frctn Loss (ft) * 0.39 * Cum Volume (acre-ft) * 552.14 * 275.16 * 437.35 '
'. * C 6 E Loss (ft) * 0.00 * Cum SA (acres) � 176.61 * 37.57 t 715.03 �
; .::....+...x....:+:....:.:.:..::::x.+.:::.:....::.++.+....+...:.«..:a.....+..+..+...+..:.:.:..x
warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth �xi[h the lowest,
valid,
wa[er sur£ace was used.
CAOSS SECTION
RNER: St. Vtain River
REACH: FULL RIVEA RS: 62715
INPUT
Descrip[ion: This cross-section assumed the 'main channel bank sta[ions' were
located at the first (upstream) intersection with the river. The
channel downstream reach leng[h was then assumed to follow the
dog-leg portion of the river, whereas the left and right overbank
lengths were just the distance to the next cross-section over-land.
Station Elevation Data num= 45
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
Fi#i+#iA*1:A'Rff-.l-.l4k#tTi�fFff�.lTfSx*#*1#<#f4!##!##}i+#4i++4+#4*tkfAF£1*kt441iffi*ff
1126 483"1 1226 4830 1320 4820 1340 4817.27 1364 4805.8
1414 4B0"1.65 1435 4812.3 1478 4813 1773 4813 2192 4811
2353 4815 2436 4812.5 2507 4802 2839 4802 2900 4012.5
2921 4813.5 2951 480'1.5 3013 4805 3025 4804.05 3030 48U4.85
3050 4805.05 3073 4806.95 3095 4B10 3149 4818.5 3257 4806.5
3342 4805.5 3357 4805.5 3410 4805.5 3607 4805.5 3808 4805.5
4565 4805.5 4632 4821.5 4698 4820.5 4738 4818.8 4907 4821.5 �
5007 4820.55 5045 4822.45 5058 4817.45 5069 4817.45 5089 9822.55
5207 4823.25 5406 4823.25 5608 4822.25 5808 4822.35 5894 4822.55
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
..«�.:.......+..:.....++..+.+.:.......:..i:..�:.
�.� 1726 .07 1340 .04 1435 .07
i
Page 65
STVRAIN.rep
Bank Sta: Lef[ Right Lengths: Left Channel Right Coeff Contr. Expan.
. 1340 1435 100 3520 100 .3 .5
Inef£ec[ive Flow num= 1
Sta L S[a R Elev Permanen[
3112 5894 481].5 F
Blocked Ohstructions num= 2
Sta L Sta R Elev Sta L Sta A Elev
..x..�+.:..xa........,+xx..:::::x+�w�a,+��x��.�.
2436 2900 4808 3257 4632 4808.5
CROSS SECTION OUTPUT Profile Si100 year
.......:.+x..+«..::.....+.::........+..x.....+.+.x.......:x.x....::.�..r.....+.x..+...:...+.....
* E.G. Elev (fU = 4815.46 * Element * Left OB * Channel * Right OB *
t Vel Head (f[) * 0.09 + Wt. n-Val. � * 0.040 * 0.070 •
{ W.S. Elev (ftl + 4815.3� * Reach Len. (ft� F 100.00 * 3520.00 * 100.00 *
* Crit W.S. (ft) * 4810.54 * Flow Area (sq ft) + * fi41.30 ' "1618.52 *
* E.G. Slope (ft/fU �0.000996 * Area (sq fU * • 641.30 *17165.46 *
* Q To[al (cfs) •16�00.00 * Flow (cfsl + * 2709.81 •13990.19 •
' Top Wid[h (ft) + 3214.28 * Top Width (ft) i * 91.02 ' 3123.2E '
' Vel To[al (ft/s) ' 2.02 * Avg. Vel. (ft/s7 R • 4.23 • 1.04 R
* Max Chl Op[h (fU * 70.52 * Hydr. �epth (ft) * * '/.05 * 4.54 *
* Conv. Total (cfs) �529107.3 * Conv. �cfs) • * 85855.1 •443252.2 �
* Length Wtd. (ft) * 1001.22 * Wet[ed Per. (Et) t • 93."/3 ' 1678.98 3
"� Min Ch E1 (ft) • 4805.80 • Shear (lb/sq ft) * � 0.43 * 0.28 *
* Alpha ' 1.40 ' Stream Power (lb/ft s) * * 1.80 * 0.52 •
' Fictn Loss (ft) * 0.94 * Cum Volume (acre-fU * 693.30 � 296.88 * 383.11 +
" C & E Loss (ft) * 0.02 * Cum SA (acres) * 227.97 * 36.83 * lA.90 *
+.:.wxwxiy:t+xr+t+.:,.xrtr:r::.:.xxt.*r�«,x:�...:rxxr:t��i:�it�«....�+io:��i:.�r�t�+�ts::x�<wr�*t�
warning: ➢ivided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION WTPUY Pmfile #500 year
:x:r++�i+:.x«a«+:x«.+�r.i:t.,.:c...aar+��:r�R:xwwx.wxxx.ix+�t.,:::wix�a+w�a�:ixxx�w�i�x:ir+F+�a.
} ' E.G. Elev (ft) i 4816.0"/ '" Element • Left OB " Channel • Right OB •
,y ' Vel Head (ft) • 0.04 R Wt. n-Val. * 0.070 ' 0.040 ' 0.070 •
* W.S. Elev (ft) + 4878.03 * Reach Len. (ft) * 100.00 • 3520.00 = 100.00 *
* Crit W.S. (ft) k 4813.33 * Plow Area (sq EU * 2.09 * 889.91 *25539.52 •
. * E.G. Slope (ft/ft) *0.000323 * Area (sq ft) * 2.09 • 889.91 •25539.52 *
' Q Total (cfs) •41960.�0 * Flow (cfsl * 0.41 • 2583.02 •39376.5"/ •
' Top Width (fU * 3290.47 * Top Width (ft) • 5.54 • 95.00 • 3189.93 �
* Vel Total (ft/s) t 1.59 • Avg. Vel. (ft/s) • 0.20 � 2.90 * 1.54 �
* Max Chl Dpth (ft) * 13.18 * Hydr. Depth (ft) * 0.36 * 9.3"l W 8.01 *
* Conv. Total (cfs) k2335130.0 * Conv. (cfs) * 23.1 *143748.3 *2191359.0 t
• Length Wtd. (ft) F 695.65 * Wetted Per. (ft) � 5.59 * 98.14 t 3196.27 •
' Min Ch E1 (ft� * 4805.80 • Shear (lb/sq ft) * 0.01 a 0.18 * 0.16 *
* Alpha • 1.09 * Stream Power (lb/ft s) � 0.00 � 0.53 • 0.25 *
* Frctn Loss (fU * 0.40 * Cum Volume (acre-ft) • 1294.34 * 396.17 * 846.61 *
* C & E Loss (f[) * 0.0� * Cum SA (acres) * 250.99 * 36.66 • 222.94 *
+++.xx,.+...:.:,....:.::..........::..a...::..::..:..::+.xx::.......+...::x::..xx..:......+::::
Warning: Divided flow computed for [his cxoss-section.
Warning: The conveyance ra[io (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Protile p10 year
!1#kht*t4+i#i+fiiblF-.!*+44Yiiii#fl4AiA#�.lv!l11:f£ltfix#t£k*vltlffAfSf#li11Yi##ii#f4#;1ifl1f4R£lf11#4
* E.G. Elev (ft) * 4812.70 * Element * Lef[ OH * Channel * Right OB *
* Vel Head (ft) • 0.05 * wt. n-Val. * * 0.040 " 0.070 *
* W.S. Elev (ft) * 4812.66 * Reach Len. (ft) � 1�0.00 • 3520.00 * 100.00 •
* Ciit W.5. (ft) + 4809.00 • Flow AYea (SQ £t) ' � 401.98 • 3396.34 *
• E.G. Slope (ft/ft) t0.000679 * Area (sq ft) * • 401.98 • 9090.28 "
* Q Total (cfs) x 5950.00 + Plow (cfs) * * 1075.53 � 4874.47 *
* Top Width (f[) • 2573.00 * Top Width (ft) • + 85.34 ' 2487.66 *
x Vel Total (ft/s) • 1.57 * Avg. Vel. (ft/s) i � 2.68 * 1.44 *
' Max Chl Dpth (ft) t 7.81 � Hydr. Oepth (ft) * • 4.71 * 3.10 k
• Conv. Total (cfs) *228397.2 * Conv. (cfs) * * 41285.3 *197111.9 *
�,i * Length Wtd. (ft) * 1386.25 * Wetted Per. (ft) * * 87.44 t 1096.10 *
* Min Ch E1 (Et) * 4805.80 * Shear (lb/sq fU * * 0.19 * 0.13 *
Page 66
STVRAIN.rep
� Alpha � 1.22 * Stream Power (lb/ft s) * * 0.52 ' 0.19 �
. � Frctn Loss (ft) ' 1.13 ' Cum Volume (acre-fU * 269.35 * 205.06 • 160.70 *
' C & E Loss (ft) * 0.03 * Cum SA (aaes) * 157.60 * 35.42 " "/9.34 "
.�.«.+.:..rK.���x...xxx�.k.r.x...a.:...xx.�.=�.+�.r.x:.�.r��::w:i.t::x+r:+..�aa:..:3t�k:�xi�«xt+r.
Warning: Divided flow compu[ed for [his cros�-sec[ion.
warning: The energy loss was greater than 1.0 ft 10.3 m) . between the wrrent and previous cross
section. This may i�dicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION 0[1TPUT Profile q50 year
�i++.rW..+.rrii+�::::F.:txi�.tt�iFx�+r.a.+xx«xx:x.+�++i.ri�+�+iwrxwxxx���.�x�+.+:...«i�.yta...iw.
* E.G. Elev (ft) ' 4814.60 ' Element * Left 06 � Channel � Right OB *
* Vel Head (fU ' 0.07 • Wt. n-Val. * • 0.040 ' 0.070 *
' w.5. Elev (ft) • 4014.53 • Reach Len. (fU * 100.00 3 3520.00 " 100.00 '
* Crit W.S. (ft) • 4810.04 * Flow Area (sq Et) ' * 565.24 " 6211.83 '
' E.G. Slope (ft/fU '0.000871 * Area (sq ft) ' * 565.24 '14545.44 *
* Q Total (cfs) �12850.00 " Flow (Cfs) • • 2081.86 *10966.14 *
* Top Width (ft) " 3161.17 * Top Width (ft) * ' 89.26 * 30"/1.91 '
+ Vel Tota1 (ft/s) ' 1.90 * Avg. Vel. (Pt/s) ' * 3.68 * 1.73 '
� Max Chl Dp[h (ftl ' 9.68 � Rydr. Depth (ft) * * 6.33 ' 3.78 *
a Conv. Total (cfs) *435461.3 * Co�v. (cfs) ` ' 70550.2 *364911.1 *
* Length Wid. (fU ' 10"J0.98 ' Wetted Per. (ft) a * 91.78 R 1644.11 '
* Min Ch E1 (fU * 4805.eo • Sheai (lb/sq fU * * 0.33 * 0.21 •
* Alpha ' 1.31 * Stream Power (lb/ft s) * * 1.23 * 0.36 •
* Frctn Loss (ft) '� 0.97 � Cum Volume (acre-ft) * 552 14 * 269.42 • 311.61 *
• C s E Loss (£U ' 0.02 ' Cum SA (acres) ' 176.61 * 36.62 * 88.30 *
•�3*�x:t�i.++:+:�+:::i::{::�Fi++«.+aw«.rxr:xrx::..F�x+�+xwx.t.wx�+k��xw++�3ew�t�r+w+Way+.xR.w+.t
Warning: �ivided flow computed for this cross-section-
Note: Mul[iple critical depths were found at this locaGion. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
AEACH: FULL RIVER R5: 59195
INPllT
Description: This cross-section assumed the 'main channel bank stations' were
located at [he last (downstream) intersection with the river.
5[ation Elevation Da[a num= 43
Sta Elev Sta Elev S[a Elev Sta Elev Sta Elev
...:...:..,..:._.::...:.......:....,.....+..++..::.:.......a+x...+...:..::::::::
1105 484"J 1214 4828 1272 4821 1299 4810 1344 4809
1402 4812 2118 4811 22�8 4810 2296 4815 2365 4815
2443 4805.5 2814 4805.5 2859 4805.5 2896 4813.5 2911 4073.5
29"]0 4803.33 3026 4803.46 3056 4806 3�69 4810 3095 4817.12
3130 4817.5 3191 4805.5 4583 4B05.5 4625 4819.5 4715 4818.5
4747 4B1"1.5 4776 4818.5 4936 4821.5 5007 4820.36 5045 4822.26
5058 4817.26 5069 481"].26 �� 5089 4822.36 520"] 4823.06 5406 4823.06
5608 4822.06 5808 4822.16 5894 4822.36 5902 4821_56 5915 4822.36
6009 4822.06 6211 4821.86 6362 4821.56
Manning's n values num= 3
Sta n Val Sta n Val Sta n Val
.+.xx.......+++.+.+.�+..+.+:+.w...+..:.+....xx..
1105 .07 2911 .04 3069 .07
Bank Sta: Left Righ[ Lengths: Left Channel Right Coeff Contr. Expan.
2911 3069 530 6B0 520 .3 .5
Inef£ec[ive Flow num= 1
Sta L Sta R Elev Permanent
3069 6362 4817.5 F
Blocked Obstructions �um= 2
Sta L Sta R Elev Sta L Sta R Elev
♦Y*Fili*4ii#1+ti#Yi;1}if##4Rh#k#+#4FFiiY#1f'.!AlAT
2300 2900 4808 3191 6000 4808.5
- CROSS SECTION OUTPUT Profile #700 year
Page 6�
STVRAIN.rep
«..x.....x.«.,:...........«...+..,.x.+....«.«...x..x+........x..x.+....ka.�...+rx.++..�x:x:.+..
� * E.G. Elev (fU * 4814.50 * Element i Left OB * Channel • Right OB *
* Vel Head (fU "' 0.15 t wt. n-Val. = 0.070 * 0.040 * �
* W.S. Elev (ft) • 4814.35 * ReaCh Len. (fU * 530.00 ' 680.00 * 520.00 "
' Crit W.S. (ft) ' 4811.14 • Flow Area (sq ft) + 6273.07 � 1335.04 * •
• E.G. Slope (ft/f[) *0.000888 * AYea (sq ft) � 6273.07 * 1)35.04 ' 8483.11 "
* Q To[al (cfs) *16700.00 • Flow (cfs) *10608.4"/ * 6091.53 * +
* Top width (ft) t 3183.46 ' Top Width (fU * 1546.02 " 156.00 • 1479.44 *
* Ve1 Total (ft/s) • 2.20 * Avg. Vel. (ft/s) * 1.69 � 4.56 ' i
� Max Chl Dpth (ft) + 11.02 * Hydr. Depth (fU • 4.06 • 8.45 • �
* Conv. Total (cfs) *560313.9 * Conv. (cfs) '355932.5 '209381.3 * `
' Leng[h Wtd. (ft) � 587.08 * Wetted Per. (fU • 1548.53 * 159.SB ' R
* Min Ch E1 (fU " 4803.33 � Sheaz (lb/sq fU ' 0.22 + 0.46 * �
* Alpha + 1.95 ' S[Team PoweY (lb/ft 5) • 0.38 ' 2.12 * *
� Frctn Loss (ft) * 0.34 • Cum Volume (acre-ft) R 686.10 � 217.02 ' 353.67 •
* C & E Loss (ft) ' 0.03 * Cum SA (acres) * 226.20 * 26.7"] * 146.62 �
:�.:....ixrt++:at.�i+�t�+i:t.:r:xR++x.++wrx+:rixxyat�i:*:....r.xKr:.t+�a�.�.wwxxrx�+iwar�t+xia.t
Warning: Divided flow computed for Chis cross-sec[ion.
Warning: The conveyance ratio (ups[ream conveyance divided by downstream conveyancel is less [han
0."1 or grea[er [han 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTP[TT Profile #500 year
.:::::.x�ia:....:.:.rx...w�t..xttFi�:�:+.::::::+:..:::..:««+.«r.�:i.t.,�:.t:�xr:wx�aixx.�.�.r::a:
• E.G. Elev (ft) * 481�.60 * Element * Left OB • Channel � Right 08 *
* Vel Head (£U " 0.28 * Wt. n-Val. * 0.0']0 ' 0.040 ' `
* W_S. Elev (ft) * 4817.32 * Reach Len. (fU ' 530.00 ' 680.00 * 520.00 *
' CTit W.S. (ft) ' 4813.48 ' Flow Area (sq ft) �11054.00 * 1804.10 ' *
� E.G. Slope (ft/ft) *0.001291 * Area (sq f[) *11054.00 ' 1804.10 *129'<9.37 *
• Q Total (cfs) R91960.00 * Flow (cfs) *29926.93 *12033.07 * *
' Top Width (fU * 3331.36 R Top WidCh (ft) • 1629.97 " 158.00 * 1543.39 •
* Vel Total (ft/s) t 3.26 � Avg. Vel. (ft/s1 * 2.71 + 6.67 • *
* Max Chl Dpth (ft) * 13.99 • Hydr. Depth (ft) � 6.78 • 11.42 • *
* Co�v. Total (cfs) *1177186.0 • Conv. (cfs) *839598.9 *33�SB"l.4 * *
� � Length wtd. (f[) < 569.56 * Wetted Per. (ftl ' 1633.19 • 159.58 t �
* Min Ch E1 (ft) = 4803.33 * Shear (16/sq ft) � 0.54 * 0.90 • *
� Alpha * 1.69 • Stream Powez (lb/ft 5) ' 1.45 ' 5.98 • *
• Frctn Loss (ft) * 0.35 * Cum Volume (acre-ftl ' 1281.65 * 287.32 ' 802.46 *
' C & E Loss (fU * 0.10 * Cum SA (acres) * 249.12 * 26.44 ' 21"1.51 `
�xF«..�::.+.::::::x.+xxt....+�w.xwiR»���xx.�rxi..i+.E.r:xt+irr*:.�.t:::.::.�w:.:.rr.wx+r+.t+*.r+�+
Warning: Divided flow compu[ed for this cross-section.
Warninq: The conveyance ratio (ups[ream conveyance divided by downs[zeam conveyance) is less than
0.7 or greater [han 1.4. This may indicate the need tor additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #10 year
+...«»�r,++.�wa+�xiw��ir*��::{�.�::���itt::�.+t+ia+�.+«:�ri,.�:+,:i.wxx+xxx.�,x:wr,:�x:r�xr,ww+:r�xr+
* E.G. Elev (fU • 4811.55 * Element ' Left OB ' Channel * Right OB *
* Vel Nead (fU * 0.14 � Wt. n-VaL � 0.0"]0 * 0.040 * *
* W.S. Elev (ft) * 4811.40 * Reach Len. (ft) ` 530.00 ' 680.00 * 520.00 *
* Crit W.S. (tt) ' 4809.16 * Flow Area (sq ft) * 1948.52 * 881.83 * *
* E.G. Slope (ft/ft) *0.000990 • Aiea (sq fiJ • 1948.52 * 881.83 * 4170.96 *
* Q To[al (Cfs) * 5950.00 • Flow (Cfs) * 2549.99 * 340�.01 * •
* Top Width (ft) * 2630.44 • Top Width (ft) * 1039.77 • 145.83 * 1449.83 •
� Vel Total (ft/s) " 2.10 ` Avg. Vel. (ft/s) � 1.31 t 3.86 * *
* Max Chl Dp[h (ft� * 8.07 • Nydr. Depth (ft1 ' 1.87 * 6.05 * *
' Conv. Total (cfs) "189065.6 • Conv. (cfs) • 81027.9 *10fl037.7 * *
• Length Wtd. (fU * 610.97 * Wetted Per. (f[) * 1040.89 * 147.23 * "
* Min Ch El (ft) * 4803.33 � Shear (lb/sq ft) * 0.12 i 0.37 * t
* Alpha * 2.09 • Stream Power (lb/ft s) * 0.15 '� 1.43 * *
* Frctn Loss (EU + 0.31 * Cum Volume (acre-ft) � 267 12 * 153.19 F 145.48 *
* C 6 E Lo5s (fU " 0.05 ' Cum SA (aCres) R 156.41 � 26.08 * 74.82 *
Yi++�iFM+tFT�*+hf:'���kRAhi'YaiF}#F4tf#1tf411ii+FtF1Y#4##IiMiM1ki11Yf1fMilf}f11:Tf�.lRRk1Mt'.!R'.lR+#ttt♦
wazning� Divided Elow computed for this cross-section.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
, 0 J or greater than 1.4. This may indicate the need for additional cross sections.
' Note: Multiple critical depths were Eound at [his loca[ion. The czitical depth with the lowes[,
Page 68
STVRAIN.rep
valid,
. water surface was used.
CROSS SECTION 0[1TPUT PYofile $50 yeaT
xx.x.+.++..:::.......:.x+..+.+:.i....+«+.+:�.«+...x�+:::=xaaw.:.ati��.�ax+:x.+.+:riwxxx+.+:�ri�
* E.G. Elev (ft) * 4813.61 * Elemene ` Left OB * Channel * Right OB '
* Vel Nead (EU ' 0.14 � Wt. n-Val. " 0.0"]0 * 0.040 ' `
* W.S. Elev (ft) ' 9813.4"/ ' Reach Len. (EU * 530.00 ' 680.00 * 520.00 '
* Crit W.S. Ift) * 4810.5"/ ' Flow Area (sq Et) ' 4912.�"/ ll95.40 * *
a E.G. Slope (ft/fU *0.000939 * Area (sq fU * 4912.77 * 1795.40 • �180.18 �
* p Total Icfs) �12850.00 * Flow (cfs) " '1635.31 � 5214.69 ' *
� Top Widih IfU * 3145.15 ' Top Width (ftl * 1518.2"1 " 157.81 ' 1469.07 •
* Vel Tota1 (ft/s) * 2.10 * Avg. Vel. (ft/s) * 1.55 * 4.36 ' *
* Max Chl Dpth Ift) ' 10.14 * Hydr. Depth (ft) * 3.24 * "1.57 � *
* Conv. Tota1 (cfs) '�192"]0.3 * Conv. Icfs) '249125.1 *1']0145.2 ' `
' Leng[h Wtd. (ft) ' 591.82 ' Wetted Per. (ft) • 1520.43 * 159.39 • "
" Mi� Ch E1 (ft) * 4803.33 " Shear (lb/sq ft) * 0.19 * 0.44 * "
* Alpha * 2.07 ' Stream Power (lb/ft s) ' 0.29 * 1.92 * *
* Frctn Loss (ft) ' 0.34 ' Cum Volume (acre-ft) • 546.50 * 198.29 * 286.6� *
� C & E Loss (ft) ` 0.04 * Cum SA (acres) * 1"14.8"1 * 26.64 * 83.09 *
.��xi+xKa.�x:..::::.:,:.....x..xw++::+++K�.rw+.ti.:...:::�irx+x...+:...a:��....::*t�+wkx�xa++t+i
Warning: Divided flow computed for this cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstxeam conveyancel is less than
0."1 or greater than 1.4. This may indicaCe the need for additional cross sections.
Note: Multiple critical depths were Eound at this location. The critical depth with the lowes[,
valid,
water surface was used.
. CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVEA RS: 58575
INPUT
Description:
� Station Elevation Data num= 48
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
:+�+�.x+x.e+::.:+:«+i�++w»+.:.ixxtrwiRr:xx:.:+tw»w:::t..xt+xrxx.ww+,..�txrr:.xwx..+
1330 482'J.3 1350 4822 1370 4821.2 1384 4819.5 1402 4815.2
1458 4602 1598 4803 1740 4805.'7 1802 4805.7 1839 4805.5
1892 4805.2 1995 4807.5 2065 4810 2107 4803 2201 4802
2399 4802 2599 4802 2693 4802 2722 4802 2750 4802
2"J98 4602 2996 4B02 3070 4802 3203 4802 3234 4802
3251 4802 3309 4B07.65 3331 4805.15 3345 4805.75 339"1 4805.85
3432 4803.85 3499 4803.85 3542 4807.75 3557 4813.5 3563 4808.15
3630 4805.5 398'1 4805.5 4023 4816.5 4095 481'1.5 4183 4818.6
4228 4818.5 4983 4820.5 5009 4816.5 5143 4816.5 5204 4815.65
5419 4817.05 5455 4819.05 5455.1 4819.05
Manning's n Values num= 3
Sta n Val Sta n Val SLa n Val
»...+..+..+:.:«.+.+.x+...+.x::.++>::..x.:�.....+
1330 .0"] 3309 .04 3542 .0"/
eank Sta: Left Right Lengths: Left Channel Ri9ht Coe£t Contr. Expan.
3309 3542 780 1114 480 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev Permanent
1330 2256 4815.5 F
3687 5455.1 4877.5 F
Blocked Obstructions num= 3
Sta L Sta R Elev Sta L Sta R Elev Sta L Sta A Elev
#i+k*t�titiiiYF#i:4:*1i#�RIAt#4:Y+4ii#iY11AR14#4i#i#1Rt'.ltfti4RntT₹ifi1tT11k
1330 3309 4808 4983 6000 4820.5 3551 3987 4808.5
CROSS SECTION OUTPUT Profile #100 year
4#i+�.l414Rif •�#4+ii:t#ilY�Ift�R##+44MYI�.l1fR'.11ftffl#1#1%1R'.l11:14k4i1it+41lfffAnk�.lhf4#I1f1t�.ltlix#t
+ E.G. Elev*(fU ' 4814.13 " Element * LeE[ OB � Channel * Right oB *
* Vel Head (ft) * 0.00 R Wt. n-Val. * 0.070 ' 0.040 � 0.070 *
� W.S. Elev (fU * 4814.04 * ReaCh Len. (ft) • 700.00 * 1114.00 ' 480.00 '
' Crit W.S. (fU ' 4809.84 t Flow Area (sq ft) " 6363.25 � 2076.20 r �57.84 *
� � E.G. Slope (ft/ft) '0.000408 * Area (sq fU •11340.81 " 2076.20 �' 2489.86 "
Page 69
STVRAIN.rep
� * Q Total (cts) *16�00.00 * Flow (cfs) ' 9052.34 * 6682.14 ' 965.52 "
' � Top Width (fU * 2605.03 * Top Width (ft) * 1902.09 ' 233.00 � 469.94 *
+ Vel To[al (ft/sl ` 1.82 * Avg. Vel. (f[/s) ' 1.42 * 3.22 * 1.2� '
* Max Chl Dpth (fU * 10.19 * Hydr. Depth (ftl ' 6.04 * 8.91 * 5.23 *
* Conv. To[al (cfs) '826�3�.3 * Conv. (cfs) '448135.6 '330�98.8 • 47797.8 "
* Length W[d. (ftl * 848.30 * Wetted Per. (fC) * 1053.00 ' 233.�4 • 147.99 •
* Min Ch E1 (fU * 4803.85 ' Shear (lb/sq fC) " 0.15 ' 0.23 * 0.13 *
* Alpha � 1.62 � S[ream Power (16/ft s) i 0.22 ' 0.73 • 0.17 '
* Frctn Loss (ftl * 0.46 ' Cum Volume (acre-fU ` 578.90 * 190.40 t 280.17 *
* C & E Loss (ft) + 0.02 * Cum SA (acres) � 205.22 * 23.72 ' 134.99 *
...x.ww...+...:.,,::,,...:.:..:..........::.,::....x.+.......:...:.+.:....x......w,.:.....xx:.+
Note: Multiple critical depths were found at this location. The critical dep[h with the lowest,
valid,
water surface was used.
CROSS SECTION OQTPUT Pxofile #500 yeai
:::.:+a+iiF+i..::..:.:.....=:tt����tr:�r..3xt3++++ir+.r.::.:r.::t�yay�Rx::.:t+iaknaw� + wx:�ri�
* E.G. Elev (ft) r 4817.15 * Element * Left OB • Channel R Right OB "
• Vel Head (ft) ' 0.09 • Wt. n-Val. * 0.070 ' 0.040 * 0.070 '
� W.S. Elev (EU * 4817.07 t Reach Len. (ft) w 780.00 * 1114.00 * 480.00 *
' Crit w.5. (ftl ' 4811.53 * Flow Area (sq ft) *17118.02 * 2780.55 r 1196.17 *
* E.G. Slope (ft/ftl '0.000362 * Area (sq ft) *17118.02 • 2780.55 * 3941.84 rt
* Q Total (cfs) '41960.00 ' Flow (cfs) *29771.11 '10242 J1 * 1946.18 *
* Top width (ft) ` 2669.56 * Top Width (ft) * 1914.81 • 233.00 • 521.75 •
• Vel Total (ft/s) * 1.99 # Avg. Vel. (EC/s) * 1.74 * 3.68 * 1.63 '
* Max Chl Dp[h (ft) * 13.22 * Hydr. Depth (ft) • 8.94 * 11.93 * 8.25 +
* Conv. Total (cfsl "2205056.0 " Conv. (cfs) *1564513.0 *538268.� *102274.3 *
* Length Wtd. IfU * 807.38 * Wetted Per. (ft) " 1916.07 ' 233.74 ' 147.97 *
• Min Ch E1 (ft) ' 4803.85 * Shear (lb/sq fU • 0.20 * 0.27 * 0.18 *
• Alpha ` 1.41 • Stream Power (lb/ft s) * 0.35 * 0.99 * 0.30 •
* Prc[n Loss (ft) ' 0.38 * Cum Volume (acre-ft) 3 1110.26 ' 251.53 * 701.75 *
* C & E Loss (ft) * 0.01 " Cum SA (acresl * 227.55 • 23.39 * 205.18 *
...:.:.........a...+......:+:.....+..x..........x..::::.......++:.:.:..+...:.:.::............x«
Note: Mul[iple critical depths were found a[ [his location. The critical depth wi[h the lowest,
� valid,
watez surface was used.
CROSS SECTION O�TPUT Pro£ile �10 yeal
�xa�x+r�::�.r3::+t::xxxxw�xR+:i++w�r��+k++i+x�.x+::.:t:��.ax:+w+�+rtiMRxw+�Rxt+x...x+:�x+it+�+�+
� � E.G. Elev (ftl ' 48ll�.18 * Element � Left OB • Channel � Right OB �
* Ve1 Head (fU ` 0.04 ' Wt. n-Val. ' 0.070 ' 0.040 ' 0.070 *
` W.S. Elev (fU " 4811.14 * Reach Len. (ft) • 780.00 * 1114.00 " 480.00 *
* Crit W.S. (Et) ' 4808.43 • Flow Asea (sq ft) ' 3304.51 i 1399.39 ' 347.05 *
* E.G. Slope (ft/ft) '0.000315 • Area (sq ft) * 5841.55 R 1399.39 ' 1154 16 *
* Q Total (cfs) ' 5950.00 * P1ow (cfs) * 2666.75 � 3039.98 * 243.27 *
• Top Width (ft) ` 2570.83 * Top Width (ft) • 1889.77 * 233.00 * 440.06 *
* vel Total (ft/s) • 1.18 * Avg. Vel. (ft/s) ' 0.81 * 2.17 + 0.70 *
* Max Chl Dp[h (ft) * 7.29 * Hydr. Depth (fU * 3.14 * 6.01 + 2.55 *
• Com. Total (cfs) •335472.5 * Conv. (cfs) •150356.7 *171400.0 * 13715.9 *
* Length Wtd. (f[) ' 916.48 * Wetted Per. (ft) ' 1053.00 * 233.�4 ` 137.82 *
* Min Ch E1 (ft) ' 4803.85 * Shear Qb/sq ft) * 0.06 � 0.12 ' 0.05 '
• Alpha * 1.96 t Stream Power (lb/ft s) * 0.05 * 0.26 • 0.03 k
* Frctn Loss (ft) * 0.43 * Cum Volume (acre-ft) • 219.�3 " 135.39 • 113.69 *
* C & E Loss (ftl t 0.02 * Cum SA (acres) * 138.58 * 23.12 * 63.53 •
i+#ArtRrt#tisRtki#ii*411Ftxtti+R1�1lkli4fh111hx4SiiifF*li�4iA1xxf41Yf1i!!x#+iY1vlFxSfit4#ii1f1x1S1
Warning: Divided flow computed £or Chis cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream wnveyance) is less than
0.7 or greater [han 1.4. This may indicate the need for additional cross sections.
Note: Mul[iple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #50 yeaY
x��x�+��r�>>ix�x+Far+rw+i:a+a���+�ai+x+kx+��a�w+at��+.::*+tr+a�x�ki+i+�+R+++tiir�kk+ix+iew����♦
; E.G. Elev (ft) ' 4813.24 * Element " Left OB • Channel * Right OH *
+ Vel Head (fU * 0.07 ' Wt. n-Val. * 0.070 • 0.040 � 0.070 •
• W.S. Elev (ft) k 4013.17 * Reach Len. (ft1 " 780.00 ' 1114.00 � 480.00 �
• Crit W.S. (fU * 4809.47 * Flow Area (sq ft) ' 5442.90 ' 1872.55 ' 631.31 +
* E.G. Slope (ft/�ft) R0.000379 • Area (sq ft) ' 9687.96 � 1872.55 e 2081.04 ^
} • Q Total (cfs) `72850.00 • Flow (cfs) ' 6726.98 � 5424.13 * 698.88 {
. * Top Width (ftl * 2596.16 • Top Width (ft) ' 1898.38 233.00 464 J8
Page 7o
STVRAIN.rep
* Vel TOCa1 (ft/s) * 1.G2 • Avg. Vel. (ft/s) ' 1.24 k 2.90 * 1.11 '
.. * Max Chl Dpth (f[) ' 9.32 ' Hydr. Depth (ft) � 5.17 * 8.04 ' 4.39 •
* Conv. Total (cfs) '659798.� * Conv. (cEs) '345405.1 *2�8508.� * 35885.0 *
+ Length Wtd. (ft) * 862.13 * Wetted Per. (fU * 1053.00 * 233.�4 ` 146.55 *
• Min Ch E1 IfU * 4803.85 * Shear (16/sq ft) * 0.12 • 0.19 t 0.10 •
i Alpha " 1.69 ' Stream Powez (lb/ft s) * 0.15 " 0.55 ` 0.11 +
* Frctn Loss (ft) ' 0.45 ' Cum Volume (acze-fL) � 45�.68 * P4.34 ' 231.40 +
• C & E Loss (ft) * 0.02 * Cum SA (acres) � 154.08 ' 23.SB ' 71.55 '
x+:x+r.�«.��«.F....r+,:�txF.x��xx+R.x:.a+rFr�.x+x+r�.R,.,:::wa.r::r+.+a+.aa.x.ww=+,..:+t+Rta+r�i
Warning: �ivided flow compu[ed for this cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance; is less than
0.� or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were Eound at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 5�401
INPUT
Description:
Station Elevation Da[a num= 50
Sta E1ev Sta Elev Sta Elev Sta Elev Sta Elev
t4�Y4*kx*#1+lly#TAi+iFtxAxt�F41i441f11M1fiThikYY1Y+3£5Fii+iWMiillYYfxAxk£�tt{#11
1320 4626 1390 4824 1360 4822 1480 4812.8 1529 4815
1535 4813 1582 4823.5 1638 4824.5 1674 4828.1 1844 4027.5
1857 4824.5 2048 4802 2080 4802 2098 4802 2243 4802
2267 4802 2515 4802 2706 4802 2854 4802 3055 4H12
3082 4811 3100 4803 3776 4803 3789 4806 3212 4805
3225 480� 3244 4807 3340 4812.5 3399 4806.25 3401 4805.5
4333 4805.5 4401 4816.5 4503 4815.5 4612 4817.3 4665 4B16.5
4908 4816.5 49�4 4805.5 5269 4805.5 5314 4817.5 5409 4816.5
5445 9816.8 5539 4814.65 5544 4816.65 5571 4816.65 5579 4815.45
� 5586 4817.15 5760 4814.75 5940 4814.65 6174 4814.65 6378 4818.25
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
++.....:.:.x+x....a..++..x.x:+:+.x.x..k�..+.:..x
1320 .0� 3082 .04 3244 .0�
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
3082 3244 830 905 790 .3 .5
Ineffective Flow num= 2
Sta L Sta R EleV Pezmanent
1320 2532 4815.5 F
3986 6378 4817 F
Blocked Obstructions num= 2
Sta L Sta R Elev Sta L Sta A Elev
#*i�h*M�R**kY#x}#+kkkMMkxrit��f4kiFRA+#itt�ltfii
1857 3082 4806 3380 5409 4808.5
CROSS SECTION OUTPUT ProEile #100 yeaz
•+��st�i.:��t+�t:++.:++:eat�«ir+�Rx.x:�:++�++�+.x+::a++sxr+r.rxwi�i:x�+�;�f+i+�ii+r+��xx�tx�x�♦
* E.G. Elev (fU � ' 4813.65 � Element * Left OB * Channel � Aight OH r
+ Vel Head (fU R 0.13 t Wt. n-Val. ' 0.070 * 0.040 * 0.070 •
* W.S. Elev (f[) ' 4813.Sa * Reach Len. (fU * 830.00 * 905.00 ' 790.00 *
* Crit W.S. (ft) t 4810.36 * Flow Area (sq ft) � 2700.98 * 1440.32 • 3529.96 *
• E.G. Slope (ft/fU *0.000742 * Area (sq fU * 5873.62 * 1440.32 * 7193.87 *
* Q Total (cfs) *16700.00 • Flow (cfs) * 4734.94 * 6196.58 * 5768.48 *
• Top Width (fU * 2834.92 * Top Width (ft) * 116L 14 * 162.00 * 15ll.78 R
� Vel Total (ft/s) t 2.15 * Avg. Vel. (ft/sl • 1.70 � 4.30 • 1.63 *
t Max Chl Dpth (ft) * 10.52 * Hydr. Depth (fU ' 5.06 * B.B9 * 4.76 x
* Conv. Total (cfs) *613279.7 * Conv. (cfs) *173882.6 *227559.2 •211837.8 *
* Length Wtd. Ift) ` 855.38 * Wetted Per. (ft) * 550.12 * 164.21 * 742.62 *
* Min Ch E1 (ft) ' 4803.00 • Shear (lb/sq ft) * 0.23 a 0.41 * 0.22 �
* Alpha • 1.86 * Stzeam Power (lb/ft s) • 0.40 * 1.75 * �.36 *
* Frctn Loss (ft) i 0.61 * Cum Volume (acre-fU * 424.70 " 145.43 * 234.82 "
* C s E Loss (fU ` 0.01 � Cum SA (acres) * 177.79 ' 18.67 * 124.07 �
a....xw:.+.x...+....x.....,.::....+..xwx.x:xx..xx...xx..«xxx....+..:w.+.+..::��..:.s.+e...:wxw+
Page 71
STVRAIN.rep
, Warning: Divided flow compuGed Eor this cross-section.
' Note: Multiple critical depths were found at [his location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT PioEile #500 year
+tr��+a�w«...,._.,.:...:,+:+.i.:x..,:�..xart.�r�..�.i.ir�F,s�+F�t�:�::.i�..r..a,.....�x..xx.wx.
� E.G. Elev (fU * 4816.�6 * Element * Left OB * Channel " Right OB "
* Vel Head (fU * 0.13 * Wt. n-Val. * 0.070 ' 0.040 * 0.070 '
• W.S. Elev (fU " 4816.63 * Reach Len. (fU ' 830.00 ° 905.0� * 790.00 •
* Crit w.5. (fU * 4811.99 • Flow Area (sq ftl ` 9697.73 * 1993.96 * 5836.76 '
* E.G. Slope (ft/fU *O.000621 * Area (sq f[) * 9697.73 ' 1943.96 •13�54.96 *
� Q Total (cfs) +41960.00 * Flow (Cfs) *20406.76 k 9347.55 *12205.69 *
* Top Width (fU * 4217.57 * Top Width (fU * 1279.38 ' 162.00 ' 2776.19 *
* Vel Total (ft/s) + 2.40 ' Avg. Vel. (ft/S) " 2.10 * 4.81 * 2.09 '
* Max Chl Dpth (ft) k 13.63 * Hydr. Depth (ft) • �.58 * 12.00 E 7.87 *
' Conv. Total (cfs) *1683755.0 • Conv. (cfs) *818874.8 •375094.9 #489785.5 *
• Length Wtd. (f[) � 84�.34 " Wetted Per. (fU ' 1280.93 • 164.21 • 742.62 *
* Min Ch E1 (ftI � 4803.00 " Shear (lb/sq fU t 0.29 ' 0.46 * 0.30 *
* Alpha * 1.49 * Stream Power (lb/ft s) + 0.62 * 2.21 * 0.64 '
* Frctn Loss (ft) + 0 J2 � Cum Volume (acce-ft) • 870.18 ' 191.12 * 607.01 '
* C & E Loss (ft) " 0.06 * Cum SA (aczes) * 198.95 ' 18.34 * 187.01 '
.+r�:f.Kyy�t::::..xx..r�:�ri��.+.tFk�aa�t.:t+tit���i*�+rr�r�r3.+++yaii�«t+w�ia�«++;W+ax�yw�tii
Warning: Divided flow computed for this cross-section.
Warning: The conveyance ratio (upstream <onveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indica[e the need for additional cross sections.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #10 year
•:�.::xxww+x:,x+...:<:..:.:..t:+«........+t.i��x�.�xw�x.:.x:..w�wR:xrrx,::::...,+..::R:xx+:::..
* E.G. Elev (fU ` 4810 J4 * Element * Left OB • Channel * Right OB *
* Vel Head (ft) • 0.10 " Wt. n-Val. ' 0.070 • 0.040 • 0.070 *
* W.S. Elev (ft) * 4810.63 * Reach Len. (ft) t 830.00 * 905.00 * 790.00 '
l * Crit W.S. (ft) + 4808.86 • Flow Area (sq ft) " 1234.95 ` 912.67 * 1434.18 '
% • E.G. Slope Ift/fU *0.000756 R Area (sq ftl ' 26�2.75 * 972.67 * 2941.62 "
• Q Total (cEsl * 5950.00 * elow (cfs) * 1324.67 * 3263.94 * 1361.40 *
. * Top Width (ft) * 2629.53 * Top Width (ft) � 1052.B0 ^ 161.17 * 1415.56 F
� * Vel Total (ft/s) * 1.63 R Avg. Vel. (ft/s) R 1.07 * 3.36 ' 0.95 `
a Max Chl Dpth (ft) * �.�63 * Hydr. Depth (fU ` 2.49 • 6.03 * 2.07 •
* Conv. Total (cfs) �216425.8 * Conv. (cfs) ' 48183.5 '118722.7 i 49519.5 *
a Length Wtd. (fU * 8�8.89 • Wetted Per. (ft) ` 495.59 ' 163.31 * 692.25 "
* Min Ch E1 Ift) * 4803.00 = Shear Qb/sq ft) * 0.12 * 0.28 * 0.10 *
* Alpha * 2.99 ` Stream Powei (lb/ft s) * 0.13 * 0.94 ' 0.�9 '
* Frc[n Loss (ft) * 0 JB t Cum Volume (acre-ft) * 143.50 * 105.06 * 91.12 •
* C 6 E Loss (Pt) * 0.04 ' Cum SA (acres) * 112.24 * 18.08 � 53.26 *
•++s:.�.::.:,:..,..�ir�ix«h�x+�.:rr..,R,.+�.�:+ariwxrar�x�::xr:::.:i:�:�t:a�.it++t��wi�tww�+.�•
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at ihis location. The critical depth with Che lowest,
valid,
water surface was used.
CAOSS SECTION OUTPUT Profile #50 yeaT
�xwxixx�xxxw..y..+iFR+i:.x+.x�:w+t�+;+iFi+tit+ir.r+:�r+��is+r���rr�rw�r+w�.r��:rxx+�a+�++a++tii
* E.G. Elev (fU * 4812.78 * Element � Left OB t Channel * Right OB R
* Vel Head (ft) * 0.12 * Wt. n-Val. � 0.070 • 0.040 � 0.070 * �
* W.S. Elev (f[) * 4812.65 * Reach Len. (ft) * 830.00 ' 905.00 � 790.00 •
' Ciit W.S. (ft) ' 4809.96 * Flow Area (sq EU ' 2303.49 * 1299.68 * 2805 J9 •
* E.G. Slope (ft/fU '0.000�47 * Area (sq fU * 4884.05 • 1299.68 * 5887.40 *
• Q Total (c£s) *12850.00 * Flow (cfs) ' 3471.66 ' 5240.30 * 4130.03 '
+ Top Width (ft) ` 2784.38 * Top Width (EU * 1124.43 * 162.00 * 1497.95 *
+ Vel Total (ft/5) ' 1.98 ' Avg. Vel. (f[/S) ' 1.51 ' 4.03 * 1.43 *
* Max Chl Dpih Ift) " 9.65 ` Hydr. Depth (ft) * 4.19 ' 8.02 * 3.89 *
* Conv. Total Icfs) r47�185.3 * Conv. (cfs) `127029.2 '191744.2 *151411.9 *
* Length Wtd. (fU • BSB.98 • Wetted Per. (£U ' 550.12 + 164.21 * 742.62 •
• Min Ch E1 (fU * 4803.00 * Shear (lb/sq f[) ' 0.20 * 0.37 * 0.18 �
* Alpha � 2.02 • Stream Power (lb/ft sl ' 0.29 * 1.49 " 0.26 �
* Frctn Loss (ft) ' 0.61 * Cum Volume (acre-ft) * 327.21 * 133.78 } 187.49 �
* C � E Goss (fU * 0.01 * Cum SA (acres) * 127.02 * 18.53 � 60.73 *
..+a.+...::.a+...a.....,�,:..R........�....:+«.+a+�+a...i+�.«::r,,..+i:.t«w3.xaR.:..x.:.t.:.�x�
�
Page 72
STVRAIN.rep
� warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
' valid,
wa[er surface was used.
CROSS SECTION
AIVER: St. Vrain River
REACH: FOLL RIVEk RS: 56496
INPUT
Description: The left werbank mannings for this cross-section was artificially
raised so that the weir flow over the bridge is within 10-208 of
the left overbank flow for this cross-section.
Station Elevation Data num= 50
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
♦���at:+ix:�t::+t.F.t���+..w+xx+�+x��:k�a.�i�i.xxr+.++r+.x.rxw�t+a+tttt.+xwxw.;+
1280 4815 1300 4813 1373 4811.5 1597 4810.5 1805 §810
2022 4810 2027 4810 2044 4814 2059 4814 2083 4813.5
2169 480"/ 2192 4807.3 2395 9806 2423 4806 2474 4806.8
2594 4806.9 2'132 4806.5 2766 4806.5 2820 4800.5 2877 4808.5
2938 4804.5 3134 4801 3347 4807 3429 4809.5 3451 4803.55
3549 4802.55 3614 4802.55 3640 4806.15 3687 4807 3'/21 4807
38"]3 4808.5 3951 4807.7 4020 � 4HOZ 5 4043 4807.9 4248 4808.5
4552 4810.5 4690 4812.5 4968 4813.5 5169 4814.7 5402 4815.9
5675 4816.9 5917 4821 6029 4816.15 6050 4814.75 6076 4814.�5
623'i 4814.45 6441 4815.35 6696 4814.65 6920 4813.85 �132 4814.95
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
::t+at�..t+rxr++.+..w+»+::t�i�ii+.itxx.x:rx.++:�
1280 .1 3429 .04 3640 .0�
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
3429 3640 233 206 180 .3 .5
Ineffective Flow num= 2
� Sta L Sta R Elev Permanen[
� 1280 3203 4811 F
3721 ']132 481� F
Blocked Obstructions num= 3
. Sta L Sta R Elev Sta L Sta R Elev Sta L Sta R Elev
+:��+r��.i�x.r:«..+.+.::..t.�x+xrr.�..:ra�aa+x+�.sr::xi+ta:++rs+r++R+r++�a
1280 2027 4B12 2044 3429 4808 4248 4815 4808.5
CROSS SECTION OUTPUT Profile k100 year
+x�s.+i+xva�i.Rix+xa��+t++.+t+rx�.+�r���t3++i++xr.x+ii3+�e+i:��x�Rxxrx��:xxkrR+++�+�tii���xr�.t
` E.G. Elev (ft) ` 4813.03 t Element * Left OH t Channel * Right OB •
* Vel Head (ft) • 0.09 ' Wt. n-Val. • 0.100 ` 0.040 * 0.070 *
* W.S. Elev (ft) * 4812.8'1 * Reach Len. (ft) ' 112.00 * 112.00 * 112.00 •
* CLit W.S. (ft) � 4809.43 � FloW AYea (sq ft) * 6900.89 ' 1994.54 * 495.54 '
* E.G. Slope (ft/£t) '0.000690 ' ALea (sq ft) • 6900.89 * 1994.54 � 4342.23 "
* Q Total (cfsl *16700.00 • Flow (cfs) * 5261.42 ' 6426.76 * 684.87 3
• Top Width (ft) ' 3429.97 ' Top Width (ft) • 2065.81 * 211.00 ' 1153.16 '
* Vel Total (ft/s) * 1.32 * Avg. Vel. (ft/s) � 0.96 * 3.22 E 1.38 *
* Max Chl opth (tt) * 10.32 * Hydr. Depth (ft) * 3.34 t 9.45 " 6.12 +
* Conv. Total Icfs) ^635633.9 * Conv. (cfs) *270292.0 *330158.5 * 35183.4 *
* Leng[h Wid. (fU ' 112.00 * Wetted Per. (ft) * 2066.10 * 212.oa * 81.07 *
• Min Ch E1 (ft) ' 4802.55 * Shear (lb/sq ft) * 0.14 t 0.41 * 0.26 *
* Alpha " 3.31 * Stream Power (lb/ft s) * O.11 ` 1.31 " 0.36 *
* Frctn Loss (ft) ' 0.14 * Cum Volume (acie-ft) ' 303.00 * 109.75 ' 130.21 '
* C & E Loss (ft) � 0.27 * Cum SA (aczesl • 147.05 � 14.79 * 99.90 •
•f�.lfiki4lkFiSii4Y'R111:'R'Rh}1F'.!}fttitii4l#1#Y:f44RfAttttY#f*ii4R11fl11lhRkA#41tf�ftttk#xt1#*�.lY:+ktYi
Warning: Divided flow computed for this cross-section.
warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less ihan
0.7 or greater than 1.4. This may indicate the need for additional cross cections.
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
'� CROSS SECTION OUTPUT Profile #500 year
Page �3
STVRAIN.rep
+�xRx+wwwwtr::....t��.:.wx.xryxwxx:w.::.+vix�rxww.+�+a��x:r*r.:R�r�wxr�w+twwwt++��wix++��+ai.+.a
' * E.G. Elev (fU * 4815.98 * Element * Left OB ^ Channel + Right OB *
i Ve1 Head (fU ` 0.35 * Wt. n-Val. ` 0.100 * 0.040 ' 0.070 *
• W.S. E1ev (ft) * 4815.63 " Aeach Len. (ft) ' 112.00 * 112.00 ' 112.00 *
' Czit W.S. (ft) • 4Bll."10 ' Flow Area (sq ft) �12762.59 ' 25�6.85 • 719.08 '
* E-G. Slope (ft/fU `0.001237 i Area (sq ft) '12762.59 * 2576.85 i 9418.85 *
' Q Total (cfs) •41960.00 * Flow (cfsl *21864.23 *1'1794.39 "' 2301.38 '
* Tap Width (ft) * 5164.96 ' Top Width (fU ` 2149.00 ' 211.00 * 2804.96 *
* vel Total (ft/s) �' 2.61 * Avg. Vel. (ft/s) 3 1.71 * 6.91 * 3.20 t
* Max Chl Dp[h (ft) ' 13.OB ' Hydr. Dep[h (f[) ' 5.94 ^ 12.21 * 8.88 *
• Conv. Total Icfsl "1193125.0 * Conv. (cfs) *621705.4 *505980.0 ' 65439.3 *
* Length Wtd. IfU * 112.00 x Wetted Per. (fU * 2150.12 * 212.04 * 81.01 `
* Min Ch E1 (ft) * 4802.55 * Shear (lb/sq ft) + 0.46 ' 0.94 * 0.69 '
* Alpha • 3.2"1 * Stream Power (lb/ft s) • 0.79 * 6.48 * 2.19 R
* Frctn Loss (ft) * * Cum Volume (acre-ft) * 656.20 * 144.16 ' 401.40 '
" C 6 E Loss (Et) � ' Cum SA (acres) * 166.29 "' 14.46 . 136.40 *
k'R*t�'.lk+fikkiti#i1#t�4tF#it*iftllii�tlfFfftffi##i#RliFtkFARtt�,1#lf141i4#nf4�.lf1'.l1f1eAt1:4k4lif#4k#k
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPOT Profile #10 year
.x......x...:.+:+..xxx:xx.:.,:..:+...+.....,«.....+....::.:..:..:...:+:.xx�.......++++..++:w:w.
* E.G. Elev (ft) ' 4809.92 " Element • Left OH * Channel * Right OH •
* Vel Head (f[) * 0.29 • Wt. n-Val. * 0.100 • 0.040 * 0.070 *
� W.S. Elev (ft) * 4809.68 ' Reach Len. (ft) " 112.00 ' 112.00 * 112.00 '
t Crit W.5. (ft) F 4806.20 * Flow Area (sq ft) � 342.60 * 1321.05 ' 236.99 *
• E.G. Slope (ft/ft) '0.001055 ' Area (sq ft) * 2085.98 " 1321.05 * 1274.07 *
* Q Tota1 (cfs) * 5950.00 i Flow (cfs) * 218.21 * 5397.51 * 334.28 •
a Top Widih Ift) i 2293.69 "' Top Width (fU • 1295.45 * 211.00 * 7fl7.24 •
' Vel Total (ft/s) * 3.13 " Avg. Vel. (ft/5) * 0.64 * 4.09 * 1.41 *
• Max Chl �pth (ftI * 7.13 * Hydr. Depth (ft) ' 1.52 • 6.26 • 2.93 *
" Conv. Total (cfs) '183164.1 * Conv. (cfsl ' 6717.4 3166156.2 ' 10290.5 "
+ Length Wtd. (ft) • ll2.00 • Wetted PeI. (ft) * 226.02 * 212.04 * 81.01 �
* Min Ch E1 (fU • 4802.55 • Shear (lb/sq ft) * 0.10 * 0.41 * 0.19 *
" Alpha ' 1.56 � Stream Power (lb/ft s) ` 0.06 * 1.68 " 0.27 �
4 * Frctn Loss (f[) • ' Cum Volume (acre-ft) • 98.16 * 67.23 ' 52.90 *
+ C 6 E Loss (ft) ' ' Cum SA (acres) * 89.87 • 14.22 • 33.28 *
•.+...xx::x.:::.a::.+t�s++�wR+x+:::.iwrcr:..:k+�++xr+x+::«x+ixf�:.:.+tr.i+wt�+x�+{tt:+aw�r+�.�
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #50 year
•R�w:.�:x:��+t+*t�t�t:aixx�xxr+�+���yrx:w:��t»rr��+�+���rwx:::��r+r�xs,a�+���a+ix�xr��+�x:��.k�x
• E.G. Elev fft) * 4812.16 • Element * Left OB * Channel • Right OB *
" Vel Head (ft) * 0.12 • Wt. n-Val. * 0.100 * 0.040 * 0.070 *
* W.S. Elev IfU * 4812-01 ' Reach Len. (fU * 112.00 * 112.00 ' 112.00 *
* Ctit W.5. (fU ' 4808.54 • Flow Aiea (sq fU * 5154.52 * 1813.52 ' 426.05 "
* E.G. Slope (ft/ft) '0.000666 * Area (sq ft) • 5154.52 * 1813.52 * 3430.46 •
* Q Total (cfs) *12850.00 * Flow Icfs) * 4419.01 * 6595.62 * 640.28 *
^ Top Wid[h (ft) * 3232.83 * Top Width (ft) * 2005.42 * 211.00 * 1016.41 •
* Vel Total (ft/s) • 1.58 * Avg. Vel. (fG/s) * 0.86 * 3.64 * 1.50 *
* Max Chl Dpth (ft) • 9.46 * Hydr. Oepth (fU • 2.57 • 8.59 • 5.26 *
" Conv. Total (cfs) '497861.6 • Conv. (cfs) *188766.1 *281744.5 * 27351.0 •
* Length Wtd. (ft) * 112.00 * Wetted Per. (ft) * 2005.62 * 212.04 " 81.01 *
* Min Ch E1 (ft) * 4802.55 * Shear (lb/sq fU • 0.11 * 0.36 k 0.22 *
* Alpha * 3.17 • Stream Power (lb/ft s) * 0.09 * 7.29 k 0.33 *
* Frctn Loss (ft1 * 0.16 � Cum Volume (acre-ft) • 231.58 • 101.44 * 103.00 *
* C & E Loss (ft) * 0.34 ' Cum SA (acres) * 97.20 * 14.66 * 37.93 *
#*fiRTRF'.lift4lF#i1h#i�.lfA4F4iiil:RAi441k11FkhiYlifl:�t4S11f�1ifi#i141IA#11#i!I*kli1i144l11:ff1£#f#11f
Warning: Divided flow computed for this cross-section.
Warning: The velocity head has changed by more than o.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need Eor addi[ional cross sections.
Note: Multiple critical depths were found at this location. The critical dep[h with the lowest.
valid,
energy was used.
BRIDGE
Page �4
STVRAIN.rep
RIVER: St. Vrain River
REACH: FULL RLVER P.S: 56400
INPUT
Description: Hridge at WCR13
Distance from Upstream XS = 112
Deck/Roadway Width = 65
Wei[ Coefficient = 2.7
Opstream Deck/Roadway Coordinates
num= 22
5[a Hi Cord Lo Cord Sta Hi Coid Lo Cord Sta Ni Cord Lo Cord
.:.+.+...,...:.,...x.....:,.+.+..:.:::.......::.....++........:.....+...
1260 4820 4800 1673 4820 4800 1"/59 4820 4800
1955 4816 4800 21"/4 4812 4800 2591 4811 4800
2991 4812 4800 3146 4814 4800 3290 4817 4800
3465 4820 4B00 3466 4820 4814.4 3664 4820 4814.4
3665 4820 4800 3865 4818 9800 4065 4817 4800
4465 4817 4800 4865 4817 4800 5265 4817 4800
5665 4617 4800 6065 4B1'] 4800 �127 4817 4800
7132 461'1 4800
Upstream Bridge Cross Section Data
Station Elevation OaCa num= 50
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
...�:,:s:...+....+ax+.:.+a+x».....+s.«.x.::...+:....+...x.+:+....x+«:.:::...+.».
1280 4875 1300 4813 13"/3 4811.5 159"] 4810.5 1805 4810
2022 4810 2027 4810 2094 4814 2059 4814 2083 4813.5
2169 480"] 2192 4807.3 2395 4806 2423 4806 2474 4606.8
2594 4806.9 2732 4806.5 2766 4806.5 2820 4008.5 28�"1 4808.5
� 2938 4804.5 3134 4801 334"1 4807 3429 4809.5 3451 4803.55
3549 4802.55 3614 4802.55 3640 4806.15 368'] 9807 3"]21 4807
3873 4808.5 3951 4809.7 4020 4807.5 4043 4807.7 4248 48G8.5
4552 4810.5 4690 4812.5 4968 4813.5 5169 4814.7 5402 4815.9
56"15 4816.9 5917 4821 6029 4B]6.15 6050 4814.75 6076 4814.75
623"] 4814.45 6441 4815.35 6696 4814.65 6920 4813.85 7132 4814.95
Marming's n Values num= 3
Sta n Val Sta n Val Sta n Val
f#k#Y*itk4-.!%'.!'.lFFttkkiMf'.ltRf*4i#Y'R£'.!#RiMW'.!R#£Yi#Y .
1280 .1 3429 .04 3640 .0"/
Bank Sta: Lef[ Right Coef£ Contr. Expan.
3929 3640 .3 .5
.Ineffective Flow num= 2
Sta L S[a R Elev Permanent
1280 3203 4811 F
3721 ']132 481'] F
ffiocked Obstructions num= 3 .
Sta L Sta R Elev Sta L Sta R Elev Sta L Sta R Elev
F*£ttxli*tflk#t1##+'1i+4+iF*#1k*##FifFi'h�i4i#Yi1k#RtiY#YY4i!#ii414#441�.l1t
1290 2027 4812 2044 3429 4808 4248 4815 4808.5
Downs[Leam Deck/Roadway Coordinates
num= 21
Sta Hi Cord Lo Cord Sta Ni Cozd Lo Cozd Sta Hi Cord Lo Coid
�w.xrwx�a+rir.r;xx�x�k:i++�r�r���k�i�+»wt:i��t...+.:*FR�.wxwtxi�+�si�+�a
1673 4820 4800 1'159 4820 4800 1955 4816 4800
21"]4 4812 4800 2591 4811 4800 2991 4812 4800
3146 4814 4800 3290 4817 4800 3465 4020 4800
3466 4820 4814.4 3664 4820 4614.4 3665 4820 4800
3865 4818 4800 4065 4817 4800 4465 4817 4800
4865 4817 4800 5265 4817 4800 5665 4817 4800
6065 4817 4800 7127 4817 4800 7132 4817 4800
Downsiream Bxidge Cross Section Data
Station Elevation Data num= 21
Page 15
5TVRAIN.rep
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
,.:.....,.:..x+....«:........a..+..«.x........,,.:..:x......,xxx:..+r+:.....+.a+
� 16�3 4818 � 2074 4B10 2540 4810 2]�5 4810 3202 4811
333� 4811 3465 4811 3466 4804.05 3500 4802.15 3590 4802.15
3664 4802.15 3665 4809 3666 4810 3�55 4810 4234 4810
4�16 4810.65 4914 4812.05 5567 4813.55 6205 4814.45 6900 4814.85
�12� 9816.85
Manning'5 n Values num= 3
Sta n Val Sta n Val Sta n Val
:.:.,...:»::.++..........:::...+.........s.a.+,.
16�3 .04 3465 .04 3665 .07
Bank Sta: Lef[ Right Coeff Contr. Espan.
3465 3665 .3 .5
Ineffective Flow num= 1
Sta G S[a R Elev Permanen[
3665 �727 481� F
Ups[ream Embankmen[ side slope = 2.� horiz. to 1.0 vertical �
�ownstream Embankment side slope = 3.2 horiz. to 1.0 veitical
Maximum allowable submergence for weir flow = .95
Elevation at which weir flow begins = 4811
Energy head used in spillway design =
Spillway height used in design =
Weir crest shape = Broad Crested
Numbes of Piers = 2
Pier Da[a
Pier Station Upstream= 3525 Downstream= 3525
Upstream num= 2
Width Elev Width Elev
•x:..:.:..xw.:..:..,.........:..
4 4800 4 4814.45
. Downstream num= 2
Width Elev Wid[h Elev
..� >..:.x+4•*':4800`+f*•**4*4814*45
Piez Data
Pier Station Opstream= 3602 Downstream= 3602
❑pstream num= 2
width Elev widih Elev
.:+..::.+..+:+..:,....:...+.....
4 4600 4 4814.45
Downstream num= 2
widih Elev Wid[h Elev
x+a.:.::....a::.:..,........w+..
4 4800 4 4B14.45
Number of Bridge Ccefficient Sets = 1
Low Flow Methods and Data
Eneigy
Momentum Cd = 2
Selected Law Flow Methods = t[ighest Energy Answer
High Flaw Method
Pressure and Weiz flow
Submerged Inlet Cd =
Submerged Inlet + outlet Cd =.8006408
Max Low Cord = 4814.4
Additional Bridge Parameters
Add Fric[ion component to Momentum
�o not add Weight component to Momentum
Class B flow critical depth computations use critical depth
inside [he bridge at the upstream end
Critezia to check for pressure flow = Upstream energy grade line
BRIDGE OUTPOT Profile q100 year
....+.::+.....::+..:::.:...:..+..ea.++...w..x...+..::...a..e:x..:.r..,•.:�:.t::...t�.�..:...
' E.G. US. (ft) * 4813.03 ' Elemen[ •Inside BR US �Inside BR DS a
Page 16
STVRAIN.rep
= W.S. US. (fti * 4812.87 • E.G. Elev (ft) • 4812.63 * 4812.27 *
� * Q Total (cfs) + 16700.00 * W.S. Elev (ft) * 4811.56 * 4811.50 *
* Q Bridge (cEs) * 12373.06 * Crit W.S. (ft) " 4809.80 * 4808.56 *
* Q weir Icfs) • 4326.94 � Max Chl �pth (ft) * 9.01 * 9.35 *
• Weir Sta Lf[ (ft) ' 2117.41 • Vel Total (ft/s) ' 8.00 * 7.07 •
'� Weir Sta Rgt (ft) ' 30"11.'_1 • Flow Area (sq ft) ' 1545.80 ' 1']49.21 *
' Weir Submerg ' 0.00 " Froude p Chl * 0.50 * 0.41 *
* Weir Max �epth (fU ' 2.03 * Specif Force (cu ft) ' 9589.03 t 10759.27 •
* Min E1 Weir Flow (fU * 4811.01 " Hydr Depth (fU ' 8.12 * 9.19 '
* Min E1 Prs (ft) * 4814.40 • W.P. Total (ft) • 240.29 * 244.34 *
* Delta EG (ft) * 1.07 * Conv. Total (cfs) ' 195095.1 * 241366.5 •
* Delta WS (fU * 2.37 * Top Wid[h (ft) ` 190.39 * 190.40 •
* 9R Open Area (sq fU * 2085.28 � Frctn Loss (fU * 0.21 * 0.10 *
* HR Open Vel (ft/s) * 8.�0 ' C fi E Loss (fU ; 0.14 * 0.21 •
* Coef of Q * * SheaY Total (lb/sq ft) * 2.94 ' 2.14 *
* Br Sel Method *Energy/Weir * Power Total (lh/ft s) • 23.55 * 15.13 *
.w++.+.....:.x,.++x+.+x+.:..:.x+.x.+.+....+x..x..+:x.x:.....++.......x.xx..x:.+.x:..x.a+....:.
Note: Momentum answer is not valid if the water surface is above the low chord or if there is weir
flow. The momentum answer has been disregarded.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
Note: Notes(60) : This is an inside cross section of a perched bridge that has energy, low flow inside
of the bridge and weir flow over the embankmenL The reported hydraulics are based on [he
flow and area inside of the bridge.
warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
addi[ional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
Note: Notes(60) : This is an inside cross section of a perched bridge that has er�ergy, low flow inside
of the bridge and weir flow over the embankment. The repor[ed hydraulics aze based on the
flow and area inside of the bridge.
� BRIDGE OUTPUT Profile q500 yeaz
. »++:+:��t++xx3x����x+�RR���+�t::�:3t+��+xr���xfr���+tis�+�+�fi�aiw�W::i:�rx«:::::::�+�++�r���
* E.G. US. (fU * 4815.98 * Element *Inside BR I1S *Inside HR DS *
' W.S. U5. (fU ' 4815.63 ' E.G. Elev (fU • 4815.98 � 4875.68 '
* Q Total (cfs) ' 41960.00 * W.S. Elev (fU ' 4815.63 • 4814.44 '
* Q Bridge (cfs) " 17036.45 * Cri[ W.S. (ft) * 4815.04 ' 9614.40 *
* Q Weir (cfs) ' 24923.55 * Max Chl Dpth (fU * 13.08 ' 12.29 *
• weir S[a Lft (ft) * 1956.23 * Vel Total Ift/s) ` 6.67 ' 8.23 *
* Weir Sta Rgt (ft) ' 3240.92 * Flow Area (sq f[) ' 6292 JO ' 5097.83 '
+ Weir Submer9 * 0.32 k Froude � Chl t 0.34 * 0.42 '
• Weir Max Depth (ft) " 4.98 * Speci£ Force (cu £t) � 33952.94 * 29255.25 *
* Min E1 Weir Flow (ft) � 4811.01 * Hydr Depth (ft) ' 5.04 * 4.52 *
* Min E1 Prs IfU ' 4814.40 ' W.P. Total (ft) * 1696.46 ' 15"J8.86 *
* Delta EG (ft) * 1.66 * Conv. Total (cfs) ' ' "
* Delta WS (ft) * 2.43 � Top Width (ft) * 1249.07 * 1127.06 *
* BR Open Area Isq ft) * 2085.28 ' Frctn Loss (ft) * * `
* 9R Open Vel (ft/s) * 8.17 * C 6 E Loss (ft) * * *
* Coef of Q * '� Shear Total (lb/sq fU * ` *
* Hr Sel Method * Piess/Weir * Power Total (lb/ft s) ' + "
�++++�iaa+:::+�t��:x+::w�x:�«�t++i�Kt:w..x+x�>�++sa+r�r:wi+ww«x�xx:+Rxxx:cxx�.+.�:i+�ttat+si+
Note: Momentum answer is not valid if the water surface is above the �low chord or if there is weir
flow. The momentum answer has been disregarded.
Note: The downstream water surface is below the minimum elevation for pressure flow. The sluice
gate equations were used for pressure flow.
Note: For [he cross section inside the bridge at the upstream end, the water surface and energy have
been projected from the upstream cross section. The selected bridge modeling method does
not compute answers inside the bridge.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
No[e: For the cross section inside the bridge at the downstream end, the water surface and energy
are 6ased on critical depth over the weir.
Note: Multiple critical depths were found at this loca�ion. The critical depth with the lowest,
valid,
energy was used.
Page 17
STVRAIN.rep
BRIDGE OUTP�T Profile #10 year �
� .::._:.+:.+rwa:.rv��F�..:,.x:wiir.ar+�:.:Rrw.+x�+R�r:wixwx++++rxrtK�ti�.r:.a.:Rr*tt+.aira.�.ti
� ' E.G. O5. (f[) * 4809.92 • Element +Snside BR US "Inside BA DS *
� W.5. US. IEt) * 4g09.68 � E.G. Elev (ft) • 4609.83 � 9808.66 '
* Q Tota1 (cfs) " 5950.00 * W.S. Elev (fU * 4809.36 * 4808.23 '
* Q Bridge (cfs) * 5950,00 * Crit W.S. (f[) + 4806.50 * 4805.47 +
* p Weir (cfs) � * Max Chl Dpth (fU * 6.81 F 6.08 *
* Weii Sta LfG (ft) * • Vel Total (ft/s) * 5.28 * 5.28 '
* Weir Sta Rgt (fU * ` Flow Aiea (Sq ft) ' 1126.66 ' ll25.94 '
� Weir Submerg � • Froude p Chl � p.38 * 0.38 =
* Weir Max Depth Ift) * * Specif Force (cu fU ' 4a91.01 * 4317.11 3
• Min E1 Weir Flow (fU * 4811.01 ' Hydr Depth (fU t 5.91 • 5.90 *
' Min E1 Prs (f[) • 9814.40 ' W.P. Total (ft) + 227.08 ' 224.70 •
* Delta EG (fU + 1.3� * Conv. Total (Cfs) " 121568.9 * 122476.2 *
* Delta WS (fU * 1.48 ' Top Width (ft) * 190.70 • 190.86 •
' 6R Open Area (sq ft) � 2085.28 • Frctn Loss (ft) * • �
� aR Open Vel (ft/s) * 5.28 * C & E Loss (ft) * * *
* Coef of Q � F Shear Total (lb/sq ft) r 0.�9 � 0.74 •
* 6r Sel Method • Momen[um ' Power Total (lb/ft s) ' 3.92 � 3.90 *
tt++:.r::...rx.::..:x�..�t.r«i�a..,..:..x+R.�.riF+re3y+s�+s+Rxwwi.+K�ii.it�t+..:a�..xw.�x.wx* �
Note: Multiple cri[ical depths were found at this location. The critical depth with the lowes[,
valid,
energy was used.
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
BRI�GE OUTPUT Profile N50 year
xr�ri�r�+.���:.r«�r>t+t��.::.:xsxr.rR+xr+;r�aw*�++�+i.»++�+i++����.wrr.xrR.w�+��MwiM.��M��v�r
• E.G. US. (ft) * 4812.16 • Element ^Inside BR US •Inside BR DS •
' W.S. US. (ftl � 4812.01 * E.G. Elev (ft) � 4811.66 * 4811.18 '
* Q Total (cfs) � 12850.00 " w.S. Elev (ft) * 9810.36 * 4810.25 i
F Q Bridge (cfs) * 11654.91 * Cri[ W.S. (fU * 4808.77 * 4807.55 *
* Q weir (cfs� + 1195.09 * Max Chl Dpth (fU i 7.81 * 8.10 *
* Weir Sta Lft (ft) * 2165.13 * Vel Total (ft/s) � 8.85 * 7.71 *
* Weii Sta Rgt (ft� * 3003.56 � Flow Area (sq ft) * 1316.54 * 1512.40 *
f ' Weir Submerg x 0.00 * Froude # Chl • 0.59 * 0.48 *
' ' Weir Max Depth (ft) * 1.76 t Specif Force (cu ft) 3 7997.00 • 8803.15 *
• Min E1 Weir Flow (ft) ' 4811.01 � Hydr Depth (ft) � 6.91 * 7.94 *
* Min E1 Prs (ft) � 4814.40 t W.P. Total (ft) y 233.06 * 236.8� +
• Delta EG (fU * 1.16 t Conv. Total (cfs) ' 153498.7 * 193360.9 *
+ Delta WS (ft) + 2.15 F Top Widih (ft) • 190.56 " 190.58 •
* BR Open Area (sq ft) * 2085.29 � Frctn Loss (ft) * 0.29 ' 0.11 `
* HR Open Vel (£[/5) * 8.85 + C 6 E Loss (ft) * 0.19 ' 0.06 *
+ Coef of Q * • Shear Total 11b/sq fU * 2.47 * 1.76 *
* Br Sel Method *Energy/Weir * Power Total Qb/ft s) * 21.88 � 13.57 *
.Y+....+.:...::+...+...+:.s+:..«:.:.:..:,::.:..+:.+.++..++.++.:+::::x.:x..«..x..xx..x:..:rx..
Note: Momentum answer is not valid i£ [he water surface is above the low chord or if there is weir
flow. The momentum answer has been disregarded.
Note: Multiple critical depths were found at [his location. The critical depth with the lowest,
valid,
energy was used.
Note: Notes(60) : This is an inside cross section of a perched bridge that has energy, low flow inside
of the bridge and weir flow over the embankment. The reported hydraulics are based on the
£low and area inside of the bridge.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
Note: Notes(6o) : This is an inside cross section of a perched bridge that has energy, low flow inside
of the bridge and weir flow over the embankment. The reported hydraulics are based on the
flow and area inside of ihe bridge.
CROSS SECTION
RNER: St. Vrain River
REACH: FULL RIVER RS� 56290
INPUT
' Description: COUNTY ROAD 13 (NEW BRI�GE)
Page 78
STVRAIN.rep
The manning's value for [he left
' over-bank section of this cross-section has been artiEicially
lowered so that [he weir flow over the bridge is within 10-20% of
[he left overbank flow for this cross-section.
Station Elevation Da[a num= 21 �
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
s+xxax::...w:t�:...x+«++....:..=,.:w�.�...+..i:i..:�...:.:t..�*rr.��.xsit.x:�:x.
1673 4818 2074 4810 2540 4810 2775 4810 3202 4811
333� 4811 3465 4811 3466 4804.05 3500 4802.15 3590 4802.15
3664 4802.15 3665 4809 3666 4810 3755 4810 4234 4810
4]16 4810.fi5 4914 4812.05 5567 9813.55 6205 4814.45 6900 4814.85
7127 4816.85
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
+....::,:.+..:+...........«...............+.+.:+
1673 .04 3465 .04 3665 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
3465 3665 770 960 1165 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanen[
3665 7127 481� F
CROSS SECTION OUTPUT Pio£ile q100 year
:.«..��.:::xxxr+r�i+:..:+:.w.K.xrx,�....::.x:::r...x::x�iKiFit+3x++a:a.a:.K»x.wa+F�s++:+�..:..:
* E-G. Elev (ft) � 4817.96 � Element * Lef[ OB * Channel * Right OB •
' Vel Head (ftl * 1.46 ` Wt. n-Val. * 0.040 * 0.040 ' *
* w.S. Elev (ft) * 4810.50 * Reach Len. (ft1 * ��0.00 * 960.00 * 1165.00 *
' Crit W.S. (ft) ' 4808.36 * Flow Area (sq ft) < 409.68 • 1628.84 * •
' E-G. Slope (ft/fU •0.004656 * Azea (sq ft) * 409.68 * 1628.84 * 37�.25 *
' Q Total (cfs) •16�00.00 ` Flow (cfs) * 597.26 "161�2.74 ' •
* Top width (ft) • 20�8.72 * Top Width (ft) ' 939.33 * 199.93 x 939.46 "
* Vel Total (ft/s) * 6.19 ' Avg. Vel. (ft/s) ' 1.46 ' 9.89 � +
' Max Chl Dpth (ft) � 8.35 " Hydr. Depth (ft) w 0.44 * 8.15 � t
* Conv. Total (cfsl '244730.1 " Conv. (cfs) * 8�52.5 tZ359��.6 � «
• Leng[h Wtd. (ft7 * 89�.�9 * Wetted Per. (ft) � 939.34 * 211.49 * •
.F ' Min Ch E1 (fU * 4802.15 * Shear (lb/sq ft) + 0.13 * 2.24 R *
' Alpha * 1.41 * Stream Power (lb/£t s) * 0.18 * 22.13 ' *
* Frc[n Loss (ft) * 2.08 ` Cum Volume (acre-ft) * 293.99 * 101.87 * 124.24 *
* C & E Loss (ft) * 0.63 * Cum SA (aCYes) ' 144.0B * 13.91 * 98.06 *
...kkkitx:t.+r.;x..six+...r.wix�F:ir���a...x.rxx+�R:wRwx.x��itti�.ika�w�wxw�r�y+++t:+��.+..;t�:
Warning: Divided flow computed for this cross-section.
warning: The velocity head has changed by more than 0.5 ft (0.15 ml . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate Che need £or additional cross sections.
Warning: The energy loss was grea[ec Chan 1.0 ft (0.3 m) . between the curren[ and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depih with [he lowest,
valid,
energy was used.
CROSS SECTION OUTPUT PzoEile #500 year
.�+x+:x:.xx.+i+���x.w*�yiF:�:::x:w�r�itr+�r.�+r�++:��axwrixrrrrtret+�+��xkrrrW��+*+..a�.:x�twe+
+ E.G. Elev (ft) * 4814.32 * Element * Left OB • Channel • Right OB +
r Vel Head (ft) • 1.12 * Wt. n-Val. * 0.040 * 0.040 * *
* w.S. Elev (ft) * 4813.20 * Reach Len. (ft) • 770.00 • 960.00 * 1165.00 �
* Crit W.S. (ft) t 4812.91 * Flow Area (Sq ft) � 4232.40 � 2169.06 ' *
' E.G. Slope (ft/ft) *0.003734 � Area (sq fU * 4232.40 ' 2169.06 + 3862.% *
* Q Total (c£s) •41960.00 ' Flow (Cf5) '18756.18 *23203.82 * *
* Top Width (ft) + 3501.45 • Top Width (ft) * 1551.43 * 200_00 * 1750.02 *
* Vel Total (ft/s) * 6.55 * Avg. vel. (ft/s) * 4.43 • 10.70 * *
* Max Chl Dpth (ft) * 11.05 * Hydr. Depth (ft) * 2.73 ` 10.85 3 +
* Conv. Total (cfs) •686713.9 * Conv. (cfs) *306962.0 *379751.8 * •
* Length Wtd. (fU ' 861.38 � Wetted Per. (ft) � 1551.47 • 212.00 * +
' Min Ch E1 (fU ' 4802.15 * Sheaz (lb/sq ft) * 0.64 * 2.38 ' *
• Alpha * 1.68 * Stream Power (lb/ft s) * 2.82 * 25.51 * *
• Frctn Loss (fU ' 2.11 * Cum Volume (acre-ft) ' 626.81 t 133.80 * 387.61 *
* C s E Loss (ft) r 0.42 � Cum SA (acres) * 159.26 • 14.12 � 132.21 •
�*hlkktiiA**44i4ftT*#wYii4fffth##kh4+iFkTAxxtlxlY*x11l1Yi1tifihltl#114iM*1t11fY1YiY4*f1f11�iR11
Page 79
STVRAIN.rep
warning: The velocity head has changed by more [han 0.5 ft (0.15 m) . This may indicate the need for
� additional cross sections.
warning: The conveyance ratio lupstream conveyance divided by downs[ream conveyance) is less than
0.� or greater than 1.4. This may indica[e the need for additional cross sections.
4�arni�g: The energy loss was greater than 1.0 ft (0.3 m1 . between the current and previous cross
sec[ion. This may indicate the need for additional cross sections.
Noee: Mul[iple critical dep[hs were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile fl10 year
.:..ti,,.x.+..xi,:..x.Rw�:..t::::,��.:.t,i:�,:+t..�,.:.::.::.R,:,xrww�xir.Kv«xr.r�«.+ti�«+r:.�x•
' E.G. Elev (ft) * 4808.60 * Element * Left OB " Channel * Right OB *
� Vel Head (fU * 0.40 � Wt. n-Val. � * 0.040 * '
* W.S. Elev (fU * 4808.20 � Reach Len. (fU * 7"]0.00 * 960.00 * 1165.00 *
' Crit W.S. (tt) � 4805.35 * Flow Area (sq fL) � * 1169.28 * '
* E.G. Slope (ft/ft) *0.001882 + Area (sq ft) � � 1169.28 * *
* Q Total (cfs) + 5950.00 * Flow (cfs) * * 5950.0� * '
* Top Width (ft) ' 199.48 " Top width (ft) � + 199.98 " *
* Vel Total (ft/s) * 5.09 * Avg. Vel. (ft/s) ' • 5.09 * •
* Max Chl Dpth (ft) � 6.05 * Hydz. Oepth (fU ' * 5.86 * �
* Conv. Total (cfs) *137169.9 � Conv. (cfs) * "137169.9 * •
* Length Wtd. (f[) * 919.50 * We[ted Pez. (ft) * * 208.36 '* *
* Min Ch E1 (ft) " 4802.15 " Shear (lb/sq ftl ' ' 0.66 * *
� Alpha * 1.00 • Stream Power Ilb/ft s) * * 3.35 * *
* Frctn Loss (fU * 1.16 R Cum Volume (acre-ftl * 95.48 • 75.79 * 51.11 *
� C � E Loss (fU + 0.14 � Cum SA (acres) * 88.20 * 13.33 * 32.22 *
«x.++a,+..++.x.+...........+...............:..x..:.x....w:.::.:..::«a•......+......+....+>++...
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
o.� or greater than i.n. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were fou�d at this location. The ¢itical depth with [he lowes[,
valid,
energy was used.
� CROSS SECTION OUTPUT Profile #50 year
+.::::,wxxxxwx�r:x+�rt�xx�wt+.k+++.w.++...:r,:x+t::�tt:�..:::.::::�*.::a.::::�x:r+:ia:i::x:.::R::
* E.G. Elev (£t) * 4811.00 * Element • Left OB • Channel * Right OB �
* Vel Head (ftl * 1.14 ' W[. n-Val. * * 0.040 � *
* W.S. Elev (fU * 4809.8� • Reach Len. (ft) * 770.00 t 9fi0.00 ' 1165.00 *
• Cri[ W.S. (ft) ' 480�.40 ' Flow Area (sq f[) * * 1502.35 * *
* E.G. Slope (ft/ft) '0.00386� " Area (sq ft) * * 1502.35 ' 0.38 *
* Q TOta1 (C£5) *12850.00 * Flow (Cfs) * '12850.00 • *
* Top width (ft1 " 200.�0 • Top width (fU * * 199.84 * o.e� �
* Vel Total (£t/s) w 8.55 * Avg. Vel. (ft/sl ' * 8.55 * *
* Maz Chl Dpth (ft) + 7.72 * Hydr. Depth (ft) i * 7.52 * *
• Conv. Total (cfs) "206650.3 * Conv. (cfs) * *206650.3 � *
a Length Wtd. (EU ' 905.08 • Wetted Per. (ft) * * 210.85 * *
'" Min Ch E1 (ft) * 4802.15 ' Shear (lb/sq ft) ' • 1.72 * '
• Alpha * 1.00 • Stream Power Qb/ft s) * * 14.'I1 ' *
R Fmtn Loss (fU * 1.86 � Cum Volume (acre-fU * 224.95 * 94.50 * 98.39 *
* C E E Loss (fU * 0.48 ' Cum SA (acres) t 94.62 • 13 JB ' 36.58 •
+�R:rt.ritaaFttt�t.+:�:a.it.:x�r+kw:,t�xr�v�+.+::::a�:+::«i+:.r.����rR»ax�.+r�x�.�.::::r.:�::::..
Warning: The velocity head has changed by more than o.s ft (0.15 m) . This may indicate ihe need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstzeam conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was greater than 1.o ft (0.3 m) . between the curren[ and previous cross
section. This may indicate the need for additional cross sections.
Note: Mul[iple critical depths were found a[ this location. The critical depth with the lowest,
valid,
enezgy was used.
CAOSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 55330
INPUT
Description: The topographic information for this cross-section was taken trom
Page 80
STVR4IN.rep
the ACOE HEC model. The ineffective flow on the left and right
� side is due to the bridge at WCR 13.
Station Elevation Da[a num= 69
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
:,..x.+...x.+,::.+:+.....,..:,x+:..+x...::..:.x:.....:.:...++«.:..:+..:,:.+.....
1290 4819.05 1290.1 4819.05 1329 4818.15 1354 4818.15 1406 4805.05
1480 4805.05 1499 4810.55 1515 4810.55 1523 4814.55 1552 4802.85
1685 4802.85 171� 4810.45 1751 4807.'/5 1'I8� 480"].75 1823 4812.15
1907 4810.75 1941 4812.65 2040 4606.65 2392 4804.95 2648 4804.95
2671 4807.45 2"104 4808.55 2"136 4802.65 2'1�� 4804.25 28"16 4B05.05
2890 4802.25 289] 4805.05 3138 4805.35 3227 4811.25 3317 4811.85
3382 4807.85 3424 4805.95 34"]6 4805.95 3481 4807.85 3493 4806.15
3534 4806.15 3600 4805.35 3614 4808.75 3635 4001.15 3657 4799."/S
3737 4'J99.75 3']50 4801.65 3773 4810.05 3"/99 4806.15 3903 48�6.05
412"] 4804.15 4146 4802.65 4166 4804.25 4293 4805.65 4596 4806.35
48'/B 4805.65 4929 4804.25 4952 4805.25 5227 9B06.45 5299 4808.75
5584 4813.15 5748 4813.45 6013 4814.15 6329 4814.25 6338 4815.65
6360 4812.35 6370 4814.25 6398 4814.25 6412 4B12.35 6423 4814.05
6643 4812.95 6828 4812.35 7095 4811.25 "1264 4811.15
Manning's n Values num= 3
Sta n Val Sta n Va1 Sta n Val
...+....:..:..:...........:...x+++.xx.+.+.a...�.
1290 .07 3614 .04 3773 .0'1
Bank Sta: Left Right Lengths: Left Channel Right CceEf Contr. E�Jan.
3614 3"/"]3 890 1360 1550 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
4473 7264 481� F
Blocked Obstructions num= 3
Sta L Sta R Elev Sta L Sta R Elev Sta L Sta R Elev
�.a+�«+wxr+xix:..,..::.::r��wr:+.*:x+�yF+r:x++>i*+w+..::,++.t�xi+x....t.+
3"]"]3 5584 4809 6643 "/264 4812.95 1329 322"] 4805
CROSS SECTION OUTPUT Profile #100 year
iRFt[t4i1*#ki:M4fiRfi#-.Vaf�t#t#ik4fR#RFtlf4+#h#'.11iiit#1AMltxtf+4xk�.li�llvlii444#f%M'.lAfikili+li*ki#1♦
� • E.G. Elev Ift) ' 4809.25 ' Element ' Left OB ' Channel i Right OH *
� • Vel H=ad (ft) ' 0.20 ' Wt. n-Val. ' 0.0"]0 * 0.040 0.070
• W.S. Elev (tU ' 4809.06 • Reach Len. (ft) ' 890.00 ' 13fi0.00 � 1550.00 3
" CriC W.S. (fU " 480"1.29 * Flow Area Isq ft) � 5861.28 • 1198.16 * 39.26 *
• E.G. Slope (ft/ft) *0.0013"19 * Area (sq ft) ' 5861.28 * ll98.16 * 87.0"1 i
' q Total (cfs) *16']00.00 • Flow (cfs) *10343.49 " 6351.95 * 4.56 '
* Top Width (fU '� 3482.16 • Top Width (ft) * 7786.64 * 756.28 • 1539.24 *
� Vel Total (f[/s) * 2.35 * Avg. Vel. (ft/s) * 1.'J6 * 5.30 * 0.12 •
• Max Chl Dpth (ftl ' 9.31 * Hydr. Depth (ft) • 3.28 * 7.67 * 0.06 *
* Conv. Total (cfsl R449667."1 * Conv. (c£s) '278511.0 *171033.8 * 122.9 *
* Leng[h Wtd. (ft) ' 1121.99 * Wetted Per. (fU ' 1790.'15 * 159.06 � 693.38 '
' Min Ch E1 (ft) " 9799.75 ' Shear (lb/sq fU * 0.28 " 0.65 * 0.00 *
* Alpha ` 2.28 ' Stream Power (lb/ft s) • 0.50 ' 3.44 ^ O.Oo *
* Frctn Loss (ft) * 1.18 ` Cum Volume (acse-ft) � 238.56 * 70.72 " 118.03 �
' C 6 E Loss (ft) ' 0.04 * Cum SA iacies) ' 119.99 ' 9.99 * 64.91 *
::xrx:...:t�+i:ta+.:.3�aR�x*:.w+k.+a+:.«.kwx:::+k�x..c++++.+ti+.+�.::�+���t.xx.x.:t�.a�.r..:.iti:
Warning: Divided flow computed for this cross-section.
Warning: The energy loss was greatez than 1.0 ft (0.3 m) . between the current and pr.evious czoss
section. This may indicate the need Eor additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #500 year
:.:+•..:+..+r++.....+r::x:x.�:......«.....+:.:.+++.+..«:.xx.::.+.:.:..x.::..+«...x..:�.+:+.�.+..
* E.G. Elev (fU ' 4811.79 ` Element ' Left OB • Channel * Right OB `
� Vel Read (ft) " 0.28 * Wt. n-Val. * 0.070 * 0�.040 * 0.070 '
* W.S. Elev (Pt) * 4811.50 • Reach Len. (fU � 890.00 • 1360.00 * 1550.00 R
* CTit W.S. (ft) " 4608.90 ' Flow Area (Sq ft) '10514.16 ' 1586.01 * 1749.40 •
* E.G. Slope (ft/ft) R0.001736 * Area (sq ftl *10514.16 * 1586.01 " 4061.72 •
* Q Total (cfs) t41960.�0 t Flow (cfs7 *27874.77 *11236.04 * 2849.19 "
• Top Widih (ft) " 3942.52 " Top Width (ftl * 20'/9.10 * 159.00 " 1704.41 *
• Vel To[al (ft/s) � 3.03 R Avg. vel. (ft/sl �' 2.65 * 7.08 * 7.63 '
� Max Chl ➢pth (ft) * 11.75 * Hydr. Depth (fU ' 5.06 * 9.97 * 2.50 *
* Conv. Total (cfs) *1007078.0 * Conv. (cfs) *669020.0 ^269675.2 * 68383.1 "
* Length Wtd. (ft) + 1089.33 t Wetted Per. (fU * 2085.05 * 161.96 * 700.08 �
Page B1
STVRAIN.Yep
* Min Ch E1 (fU � 4799.75 " Shear Qb/sq fU " 0.55 * 1.06 * 0.27 *
/ * Alpha * 1.99 R Stream Power (lb/ft s1 ' 1.45 * Z 52 * 0.44 *
* Frctn Loss (ft1 ` 1.69 * Cum Volume (acre-ft) * 496.48 " 92.42 ' 281.64 *
" C S E Loss (ftl ' 0,04 ` Cum SA (acYes) " 127.17 ' 10.1'/ " 86.02 *
:::.Fr.....x.��.................taa.:.t�t.:�itr++i..*::::...:::.:.xx+rwRR.::...:.at.t:i+i:::.rx
warning� Divided flow computed for this cross-section.
;�arning: The energy loss was greater than 1.0 ft (0.3 m) . be[ween the current and previous cross
sec[ion. This may indicate [he need for addiCional cross sections.
Note: Multiple cri[ical depths were found at [his location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #10 year
.+.:«::.+.x.,...,a....,a...........r....�•+�x.+.:.....:...:.«..+..xx.axx++:..+.::«.....«.....::
� E.G. Elev (fU * 480"].30 • Element ' Left OB ' Channel � Right OB '
+ Vel Head (ft) ' 0.13 * Wt. n-Val. * 0.070 * 0.04� * *
* W.S. Elev (ft) • 4807.1� ' Reach Len. (ft) ' 890.00 * 136�.00 ' 1550.00 *
* Crit W.5. (ft) ` 4804.39 * Flow Area (sq ft) • 2698.94 * 911.84 • *
' E.G. Slope (ft/fU *0.000907 � Area (sq ft) * 2696.94 ' 911.84 * *
* Q Total (Cfs) " 5950.00 • Flow (cfs) ' 2536.35 ' 3413.65 * *
' Top Wid[h (ft) * 1693.37 * Top Wid[h (ft) � 1546.61 * 146.76 ` *
* Vel Total (ft/s) • 1.65 ` Av9. Vel. (ft/sl • 0.94 * 3."14 " *
* Max Chl Dpth (ft) ` 7.42 • Rydr. Oepth (ft) • 1.75 * 6.21 ` •
* Conv. Total (cfs) *19�59"/.4 ` Conv. (cfs) • 84231.3 '713366.0 * *
* Length Wtd. (fU * 1243.57 * Wetted Per. (fU ' 1548.81 " 148.93 ' *
' Min Ch E1 (ft) * 4"]99.75 * Sheaz Qb/Sq ft) ` �.10 * 0.35 ' •
+ Alpha "' 3.10 � Stream Power (16/ft s) � 0.09 * 1.30 * *
* Frctn Loss (ft) t 1.29 * Cum Volume (acre-ft) * 71.62 a 52.85 * 51.11 *
• C & E Loss (ft) * 0.03 * Cum SA (aCres) ' 74.53 ' 9.52 " 32.22 *
i4itt{iiii1k14ttfff�tfttittYf4f#1'Rii11RA44RtRk1#+#fFtMtfttfftlYtii41##fY*#1rti1f1AifFfftttktRff�
Warning: Divided flow computed for this czoss-section.
warning�. The energy loss was greater than 1.0 ft (0.3 ml . between the current and previous cxoss
section. This may indicate the need for additional cross sections.
Note: Multiple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
� water surface was used.
CROSS SECTION OUTPOT PrOfile q50 yeaI
wx:.wxr+:+++a:::x:..x++a:.�air�R:r+:i�+++rwr�r:wxx::�:ta+i.Rr,r>:��i:r+ta+tt.aw�����ixr�rxRxxrx�+
" E.G. Elev (fU ' 4808.67 * Element ' Left OB * Channel * Right Oe *
* vel Head (ft) * 0.18 ' wt. n-Val. ' 0.07o * 0.040 * *
* W.5. Elev (fU ' 4808.49 ' Reach Len. (ft) ' 890.00 * 1360.00 ' 1550.00 '
'" Crit W.S. (ft) • 4806.90 * Flow Area (sq ft) * 4860.25 * 1109.95 � _
* E.G. Slope (ft/ft) *0.001270 • Area (sq ft) � 4860.25 * 1309.95 * *
* Q Total (cfS) '12850.00 ' Flow (Cfs) • 7428.8"/ * 5421.13 ' *
" Top Width (fU * 1890.43 * Top width (Et) • 1736.42 * 154.00 ' *
* Vel Total (ft/s) * 2.15 * Avg. Vel. (ft/s) * 1.53 • q,gg + '
* Max Chl Dpth (ft) • 8.74 • Hydr. Depth (ft) * 2.80 " 7.21 * *
• Conv. Total (cfsl *360567.2 * Conv. (cfs) *208451.8 *152115.3 * '
* Length Wtd. (ft) ' 1143.28 * Wetted Per. (£U ' 1'140.06 ` 156.64 * *
* Min Ch E1 (fU * 4799.�5 * Shear (lb/sq ft) ' 0.22 * 0.56 ' '
* Alpha * 2.46 • Stream Power (lb/ft S) ' 0.34 " 2.74 * *
* Frctn Loss (ft) * 1.14 * Cum Volume (acre-EU * 181.99 * 65.71 * 98.39 *
* C a E Loss (ft) * 0.03 * Cum SA (aCies) * 79.28 * 9.88 * 36.57 *
i4Ft4i#iY#1##I�#i*#44�#tllfAttii111:1AI+Ri##rt1X#:�FFi#1f#M�.l1f'.ltA+#1iY#k1fAIAAi*11i#iMf4I1R1k#1:*!1�!
Warning: Divided flow computed for Chis cross-section.
Warning: The energy loss was greatez than 1.0 ft (0.3 m) . between the current and previous cross
sec[ion. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACN: FULL RIVER RS: 53970
INPUT
Description: The topographic information for this cross-section was taken from
the ACOE HEC model. The ineffective flow on the left and right
Page 82
51'VRAIN.rep
side is due to the brid9e at WCR 13.
. Station Elevation Data num= 54
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
+.++......a+«+..........+.:.++.++.«+.+...+...+++.:...x..::+...+w..x�..::++.+rx+.
122� 4815.05 1250 480'1.05 1255 4806.15 1276 9804.45 1315 4805.85
1339 4808.35 1364 4908.35 1379 4811.25 1400 4811.45 1428 4807.35
1960 4809.95 1513 9808.75 1524 9805.85 1547 4B05.85 3200 4803.05
3513 4805.95 3565 4802.95 3728 4803.65 3743 4800.65 3"1B6 480D.65
3816 4811.85 3836 4803.95 3856 4803.95 3871 4799.35 3905 4798.15
3970 4798.15 3985 4803.'15 4052 4803.65 4390 4804.05 9400 4001.45
4413 4801.45 4426 4803 .65 452"] 4805.05 4552 4803.25 4603 4807.95
4893 4809.05 5133 4810.65 5388 4811.75 5662 4811.85 . 5686 4812.05
6109 4811.25 6341 4811.25 fi363 4811.85 6480 4811.25 6500 4811.75
6522 4811.45 6531 4810.15 6540 4811.45 6566 4811.45 6578 4810.15
6591 4813.25 6601 4812."]5 6�84 4813.55 6903 4813.85
Manning'5 n Values num= 3
Sta n Va1 Sta n Val Sta n Val
.«..*+.+..:..=.xx:.++.+x..xx.+.+.++.,:.........x
1220 .0"] 3856 .04 3985 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E�cpan.
3856 3985 "/40 730 820 .1 .3
Ineffective Plow num= 1
Sta L Sta R Elev Permanent
5452 6903 4817 F
Blocked Obsiructions num= 2
Sta L Sta R Elev Sta L Sta R 61ev
+�+t�+iw�:.::x+.::::.aaiiF+.i:t*i�x�ywx;x�+is+rr
1220 3816 4805 3985 6903 4803.8
CROSS SECTION OUTPUT Profile #100 year
.x..+:.+a++i.�:�.+sx+x�x+.++�+x.r+:at+*+xw����++.+..+x+a.+:�.rx+x::t+t�r�r�+r.x.+:tit�.e.,x::t++
• E.G. Elev (ft) ' 4808.04 * Element * Left OB ' Channel * Right OH *
' Vel Head (fU * 0.12 * W[. n-Val. ' 0.07� * 0.040 * 0.070 *
• W.S. E1ev (ftl * 4807.92 + Reach Len. (ft) ' 740.00 • 730.00 * 820.00 *
* Crit W.S. (£t) * 4806.37 * Flow Area (Sq ft) ' 6652.�8 * 1145.17 • 2357.83 *
f' * E.G. Slope (ft/fU *0.000826 * Area (sq fU ' 6652 JB '� 1145.17 * 2357.83 *
• Q Total (<fs) *16700.00 * Flow (cfs) t '1993.35 * 5194.25 ' 3512.40
* Top width If[) ` 3766.65 * Top width (fU ` 2420.00 * 129.00 ' 61'1.65 *
+' Vel Total (Et/s) ` 1.64 r Avg. Vel. (ft/s) * 1.20 * 4.54 * 1.49 '
" Max Chl Dpth (ftl * 9.77 * Hydr. Depth (ft) * 2.75 * 8.88 ' 3_82 *
* Conv. Total (cfsl *581083.2 * Conv. (cfs) '27813a.0 '180735.8 *122215.4 *
* Length Wtd. (ft1 • "161.47 " Wetted Per. (ft) * 2422.00 * 130.77 � 619.93 *
* Min Ch E1 (ftl * 4798.15 • Shear (lb/sq ft) * 0.14 * 0.45 R 0.20 *
' Alpha * 2.79 * SCieam PoweY (lb/ft S) * 0.17 • 2.05 ' 0.29 *
� Frctn Loss (ft) * 1.47 * Cum Volume (acre-ft) * 110.72 * 34.14 ' 74.54 •
* C & E Loss (f[) R 0.10 ` Cum SA (acres) ` 7'I.O1 a 5.53 ' 26.54 *
xx+�+ai�ii++.+R*.+.�++..::��..+w::�+ti�ir,xx:��t+t:+�xtix.�x:x:.s.�xwxw.+wxx:«:�a.�+wx�x::.:i.�++:
Warning: Divided flow computed for Chis cross-section.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downsiream conveyance) is less than
0.'1 or greater than 1-4. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 Et (0.3 m) . between the curren[ and previous czoss
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile tt500 year
#1F�.!£Rii4#FRi#1R%MiF'.!F#txit>khirf#*fi#ti*ik#*1#i#niiiY'khf{l4k1#Y44#Yi1f11Rt�.!#ifttfYh41f1f:t�1�f4
• E.G. Elev (fU * 4810.06 * Element * Left OB * Channel � Right OB *
• Vel Nead (fU * 0.21 * Wt. n-Val. *' 0.070 • 0.040 • 0.070 •
• W.S. Elev (fU * 4809.85 * Aeach Len. (ft) 3 740.00 * 7?0.00 ' 020.00 �
* Crit W.S. (Et) ' 4907.58 * Flow Area (sq ft) *11482.70 • 1394.54 * 3992.44 •
* E.G. Slope (ft/f[) *0.001395 * Area (sq fU '11482.70 * 1394.54 * 3992.44 '
• Q Total (cfs) "41960.00 * Flow (cfs) *24766.88 * 9374.43 ' 7818.69 a
• Top Width (fU ' 3'124.12 * Top Width (ft) ' 2566.93 " 129.00 + 1028.18 �
• Vel Total (E[/s) ' 2.49 • Avg. Vel. (ft/s) ' 2.16 * 6.72 • 1.96 *
* Max Chl Dpth (fU * 11.70 * Hydr. �epth (fU ' 4.47 * 30.81 * 3.88 "
� Conv. Total (cfsl *1123405.0 * Conv. (cfs) *663089.8 *25C983.9 *209331.7 �
. * Length Wtd. (ft) • �58.51 • Wetted PeY. (ft) ' 2570.38 ' 130.77 * 1028.46 *
Page 83
STVRAIN.rep
� * Min Ch E1 (fU * 4798.15 • Shear (lb/sq ft) * 0.39 * 0.93 ` 0.34 * �
* Alpha * 2.19 * Stream Power (lh/ft s) * 0.84 * 6.24 * 0.66 �
� Frctn Loss (ftl • 1.92 ` Cum Volume (acre-fU ` 2"11.76 * 45.89 ' 138.35 *
" C & E Loss (ftl * 0.05 ' Cum SA (aCre51 ' 79.71 ` 5.6'/ ' 3"1.40 '
+.::+ia+::::......:::.:..:.:...>�,�....�+:.Fixt�.xx.:.ix++«..x�+x«f.�+.:..«....+.....aaa..+:t�t..
warning: Divided flow computed for [his cross-section.
Warning: The conveyance ratio (upst:eam conveyance divided by downstream conveyance) is less than
0.7 or qrea[er [han 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was greater ihan 1.0 ft (0.3 m) . between the curren[ and previous cross
section. This may indicate [he need for additional cross sections.
Note: Mul[iple critical depths were found at [his location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Pro£ile q10 year
xxf.+:rr:w.+:.�r..:.:..:::.x.+xx.wxw:x.x+xxxxx:,ww..:.r.+t+at++.�sxtt�+r,w.a.x�k�rw.�a«+x+,;+++++a,
' E.G. Elev (ft) • 4805.98 * Element ` Left OB * Channel * Right OB �
• Vel Head (ftl • 0.�2 * wt. n-Val. * 0.0']0 * 0.040 ' 0.0'10 *
* w.S. Elev (f[) ' 4805."]6 * Reach Len. (ft) * 740.00 * 770.00 • 820.00 '
* Cri[ W.S. (ft) * 4803.03 * Flow Area (sq ftl * 1516.53 ` 866.89 * 1050.66 F
• E.G. Slope (ft/ft) *0.001207 " Area 1sq fU * 1516.53 * 866.89 ' 1050.66 •
* Q Total (cfsl * 5950.00 * Flow (cfs) ^ 869.34 • 3947.96 ' 1132.�0 3
+ Top Width (f[) * 2976.74 ' Top Width (fU * 2253.50 * 129.00 ` 594.24 •
+ Vel Total (ft/s) * 1.73 � Avg. Vel. (f[/s) ' 0.57 • 4.55 * 1.08 *
+ Max Chl Dpth (ftl * 7.61 * Aydr. Depth (ft) * 0.67 ' 6."12 * 7.77 *
• Conv. Tota1 (cfs) '171268.3 ' Conv. (cfs) * 25023.6 *113640.5 ` 32604.2 t
* Length Wtd. (fU * 753.65 * Wetted Per. (E[) • 2254.05 * 130.77 ' 594.42 '
" Min Ch E1 (fe) * 4'/98.15 ' Shear (lb/sq ft) * 0.05 * 0.50 • 0.13 *
* Alpha * 4.6� • Stream Power (lb/ft s) * 0.03 • 2.2"l * 0.14 *
* Frctn Loss (fU ' 1.66 * Cum Volume (acze-fU ' 26.56 * 25.09 • 32.42
* C & E Loss (Etl ' 0.04 * Cum SA (acres) * 35.71 • 5.21 ' 21.65 '
.xix�+i�a:+.�:::ra.::.,.:.+s.+.«.r++i+++atrxi.tr:��xx,.:.i�t�ttrixr.�r,�xt:xi::t.st.a::�t�ri.+xx+�:
Warni�g: Divided flow computed for this cross-section.
Warning: The <onveyance ratio (upstieam conveyance divided by downstzeam conveyance) is less than
� 0.7 or grea[er [han 1.4. This may indicate the need for additional cross sections.
. Warning: The energy loss was greater than 1.0 Et (0.3 m1 . between the current and previous cross
sec[ion. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water sur£ace was used�.
CROSS SECTION OUTPUT Piofile #50 year
wxx.+xx:w:x+x.::.:..:::,.:.i:::..+�w+ixr�:xx,::..:�xi.+�r.xx::r:�r..w+ww.+.+..:.:.t:t�r+.+wx:..
* E.G. Elev (ft) * 480�.49 * Elemeni * Left OB * Channel � RighC OB •
' Vel Head (ft) '� 0.12 ' Wt. o-Val. ' 0.070 * 0.040 * 0.070 *
' W.S. Elev (ftl ' 4807.38 • Reach Len. (ft) * 740.00 * "]30.00 * 820.00 +
a Crit W.S. IfU " 4806.07 * Flow AYea (sq ft) • 5351.20 * 1075.45 * 2025.55 *
* E.G. Slope (ft/fU •0.000806 • Area (Sq f[) ' 5351.20 ' 1075.45 * 2025.55 *
• Q Total (cfs) `12850.00 � Plow (cfs) * 5517.43 * 4621.42 * 2711.16 '
� Top Width (ft) � 3136."]"1 • Top Width (ft) ' 2395.99 * 129.00 * 611.'19 •
� Vel To[al (f[/s) * 1.52 " Avg. Vel. (f[/s) ' 1.03 ` 4.30 * 1.34 *
• Max Chl Dpch (fU * 9.23 • Hydr. Depth (ft) * 2.23 '� 8.34 * 3.31 *
* Conv. Total (cfs) "452585.7 ' Conv. (cfs) '194327.5 '162769.4 * 95488.8 •
* Length Wtd. (ft) * 760.46 * Wetted Per. (ft) * 2397.56 * 130.7"1 * 612.04 *
* Min Ch E1 (fU ' 4798.15 • Shear (lb/sq fU * 0.11 • 0.41 * 0.1"J '
* Alpha * 3.23 * Stream Power (lb/ft s) ' 0.12 x 1.�8 * 0.22 '
* FrCtn Loss (ft) ' 1.43 * Cum Volume (aCte-ft) • 77.67 * 31.60 * 62.35 *
* C 4 E Loss (ftl * 0.09 * Cum SA (acres) ' 3'1.06 * 5.46 * 25.68 *
�t++i�t�.r.:h..R.+:.::�.+:ti+ww�x+r+:��ii��ir+r:Ri+iiirrrrx++++a�r��ra:�x;�+�+��i+»rxx.xx�tt+t+�
Warnin9: Divided flow computed for this cross-section.
Warning: The velocity head has changed hy more ihan o.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indica[e the need for additional cross sections.
warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
sec[ion. This may indicate the need for addi[ional czoss sections.
Note: Mul[iple critical depths were found at this location. The critical depth wi[h the lowest,
valid,
water surface was used.
CROSS SECTION
Page 84
STVRAIN.rep
� RIVER: St. Vrain River
REACH: FULL RIVER A5: 53240
INPUT
Description: The topographic information for this cross-section was taken from
[he AWE HEC model.
Station Elevation Data num= 46
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.i�:.:...ix+.....�..�::.:rr,..+rr.::i:.r.«.R.�.t.:+..:xwwx.ti.aa..�xrxx+F+�ti�::r
1000 4817.25 1291 4816.05 1364 4809.05 1433 4807.75 1454 4802.45
1524 4806.85 1566 4800.25 1586 4800.25 1593 4805.35 1610 4805.35
1661 4813.25 1701 4805.05 1884 4801.45 1950 4800.05 3283 4800.25
3535 4801.45 3'J59 4802.65 378"] 4805.95 3B29 4�98.15 3903 4798.15
3926 4804.05 3948 4802.85 4068 4802.55 4086 4800.65 4289 4800.65
4309 4803.25 4549 4804.35 4799 480'].35 5041 4808.05 5288 4807.95
5463 4808.65 5657 4809.85 SB44 4809.75 6037 4809.85 6223 4809.95
6354 4610.15 6497 4810.65 6652 4810.25 6821 4610.15 7080 4810.95
'/250 4810.85 7426 4811.05 �535 4812.65 756"] 9813.55 7576 4813.15
7595 48ll.35
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
+.:.:::.....+x++.....a+.:.:+..+.+.....:.xx..w...
1000 .07 3"/8� .04 3926 .0"]
Bank Sta: Left Aight Lengths: Left Channe7 Aight Coeff Con[r. E�cpan.
3787 3926 820 870 840 .1 .3
Blocked Obstructions num= 2
Sta L Sta R Elev 5[a L Sta R Elev
++�x+�+r.>,�k+r.:..+r„�.k�+a:r:.xx�+.�.3ai:+:::.R:rx
1000 3"]87 4805 4309 7595 4800
CROSS SECTION OOTPUT Profile #100 year
. .+..++..+��+..+.+..x..+..+..k..:.....++.<.::.+x.:x.x.a...+.........+..+sxxx.x......::::i.....++
* E.G. Elev (ft) • 4806.47 * Element * Left OH * Channel * Right OB •
J * Vel Head (Ft) * 1.09 ' Wt. m Val. * 0.070 R 0.040 * 0.070 •
� R W.S. Elev (ft) * 4805.38 * Reach Len. (ft) * 820.00 t 870.00 * 840.00 i
* Crit W.S. (ft) * + Flow Area fsq ft) * 825.91 • 781.48 * 1880.92 i
' E.G. Slope (ft/ft) *0.008984 * Area (sq ft) * 825.91 * 781.48 * 1880.92 *
* Q Total (Cfs) *76700.00 * Flow (cfs) + 851.36 • 8664.92 • 7183.'l3 '
* Top Width (ft) * 3060.55 * Top Width (ft) R 2217.67 • 136.06 * 706.82 *
• Vel Total (ft/s) • 4 J9 * Avg. Vel. (ft/s) * 1.03 i 11.09 * 3.82 •
' Max Chl Dpth (ft) * 7.23 * Hydi. Depth (fU * 0.3'/ * 5."J4 * 2.66 +
* Conv. Total (cfs) '178189.4 * Conv. (Cfs) * 9084.0 * 92454.9 • �6650.6 *
' Leng[h Wtd. (ft) * 847.67 * Wetted Per. (fU * 2217.93 * 73Z 50 • 707.13 *
* Min Ch E1 (ft) + 4"l98.15 * Shear (lb/sq Ft) * 0.20 x 3.12 * 1.46 •
* Alpha * 3.06 * Stream Power (lb/ft s) R 0.21 3 34.56 * 5.57 •
* Frctn Loss (fU * 3.61 * Cum VolUme (acre-ft) * 47.20 ' 18.00 * 34.64 *
* C & E Loss (f[) ' 0.27 * Cum SA (acres) i 37.62 * 3.31 * 14.07 *
rwx:.xxr+i+�.::�.+{+i:..ix��r++�+���wwr:....,e+i�tt:�xx.rrN<+i�.�x�wr,rtrax�a�xx�*rit�:�::rxa�rrt�+
Warning: Divided flow computed for [his cross-section.
Warning: The velocity head has changed by more than o.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ra[io (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than i.a. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the� need Eor additional cross sections.
CROSS SECTION OUTPUT Profile #500 year
.+..:+�...+..+++:.+...+....�+.a.«.:.�+.w....+........«+.+.::xxx.....+•x�......+xx.x...r+.+:..:.
' E.G. Elev (ft) * 4808.09 � Element � Left OB � Channel * Right OB •
* Vel Head (ft) * 0.67 * Wt. n-Val. + 0.07a * 0.040 * 0.070 *
• W.S. Elev (ft) • 4807.42 * Reach Len. (ft) � 820.00 * 970.OD i 840.00 +
* Crit W.S. (ft) * + Flow Area (sq fU * 5443.23 * 1064.81 � 349�.32 •
* E.G. Slope (ft/ft) �0.005967 * Area (sq ft) + 5443.23 * 1064.81 * 3497.32 +
* Q Total (cfs) *41960.00 * Flow (Cfs) *15925.93 �11789.19 •14244.88 *
� Top Widih (ft) * 3318.62 • Top Width (ft) * 2286.63 " 139.00 � 892.99 •
* Vel Total (ft/s) * 4.19 * Avg. Vel. (ft/s) � 2.93 * ll.07 * 4.07 +
* Max Chl Dpih (ft) • 9.27 * Hydr. Depth (ft) * 2.38 * 7.66 * 3.92 *
* Conv. Total (cfs) R543203.4 * Conv. (cfs) +206173.0 *152619.8 *184410.6 *
* Length Wtd. (ft) ` 838.39 * Wetted Per. (ft) * 2267 JO + 140.50 + 893.32 •
Page es
STVRAIN.rep
* Min Ch E1 (f[) * 4"]98.15 * Sheaz (lb/sq ft) * 0.89 * 2.82 * 1.46 *
� ' Alpha * 2.46 • Stream Power (lb/ft sl * 2.59 * 31.26 R 5.94 *
* Frctn Loss (ft) • 3.09 * Cum Volume (acre-ft) * 127.99 * 25.29 R 67.85 *
' C & E Loss (ftl * 0.12 • Cum SA (acres) ' 38.48 * 3.43 ` 19.32 •
.+.+.+:..+....:�,+.:+F:..:.t.:..::..+�a+�.F:..:x:.�.*.x+:..:+..+.x.�..��«�x+xikx.xx..«�w+::t++t
Warning: Divided flow compu[ed Por [his cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than i.a. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m1 . between the current and previous cross
section. This may indicate [he need for additional cross sections.
CAOSS SECTION OUTPUT Profile k10 year
t+:w���.at:«::w.:.kx.+r��:i.x.;t:�t�FiiiaFwit.xxi*w«K.+..a:�r+xxrr:+�aara:rE�x.::a�.kr:+��taia+�
t E�.G. Elev (ft) ' 4804.29 ' Element * Left OB * Channel ' Right OB `
* Vel Head (fU * 0.5� * Wt. n-Val. ' * 0.040 * 0.0'10 �
• W.S. Elev (fU ` 4803.71 " Reach Len. (ft) ' 820.00 • 870.00 * 840.00 *
• Crit W.S. (ft) ' �" Flow Area (sq fU ' * 562.52 * 847.06 *
" E.G. Slope Ift/ft) •0.005196 * Area (sq ft) * • 562.52 • 847.06 •
" Q Total (cfs) * 5950.00 • Flow (cfs) * * 4052.61 * 189�.40 *
' Top Width (fU * 604.19 * Top Width (ft) • * 126.22 ' 47�.92 *
* Vel Total (Et/s) ' 4.22 • Avg. Vel. (ft/s) * " 7.20 ' 2.29 *
+ Max Chl �pth (ft) * 5.56 ` Hydr. Depth (ft) * • 4.46 ' 1.7"] •
" Conv. Total (cfs) * 82546.9 * Conv. (cfs) ' � 56223.6 " 26323.9 *
* Leng[h wtd. (fU * 856.38 � wetted Per. (ft) * * 12"1.46 * 478.22 *
• Min Ch E1 (ftl * 4798.15 * Shear (lb/sq ft1 * * 1.93 ' 0.57 •
* Alpha * 2.0'1 r Stream Power (lb/ft s) * * 10.31 * 1.29 *
� Fmtn Loss (fU * 2.99 * Cum Volume (acre-ft) * 15.60 t 13.11 * 14.56 *
" C 5 E Loss (ft) * 0.11 * Cum SA (acres) ' 16.57 * 3.07 * 11.56 *
�:x.:.xRxxixwa+:.+x+w.:�xx�+t++t�..�.x+,.::,:triaaxr:w+...:�t:.it�t«i+*+iii.�w�r�+x+rxx.x+:::t:�t�
Wazning: Divided flow computed for [his cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyancel is less than
0."1 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 f[ (0.3 ml . between the curzent and previous cxoss
section. This may indicate the need foz additional cross sections.
,� CROSS SECTION OUTPUT Profile #50 year
x...r.xx«x.x+x..:xx.++.:........w+..«++....+..x:.x:::.+....w.+.x..x:...x+++..+..a...x.xx:.:x:x.
* E.G. Elev (fU * 4805.97 * Element • Left OB * Channel " Right OH `
x Vel Head (ft) • 1.05 • Wt. n-Val. ' • 0.040 * 0.070 *
� R W.S. Elev (ft) ' 4804.92 * Reach Len. (ft) * 020.00 * 870.00 � 840.00 *
* Crit W.S. (ft) * ` Flow Area (sq £U ` ` 720.23 * 1568.3"] *
+ E.G. Slope (ft/£U *0.008385 ' Area (sq Et) ' * "120.23 ' 1568.37 *
' Q To[al (cfs) *12850.00 * Flow (cfs) * ' 7475.54 * 5374.46 *
i Top Widffi (fU ` 803.46 ` Top Width (£t) ` * 133.73 * 669.73 *
* Vel Total 1ft/s) a 5.61 ' Avg. Vel. (ft/s) ' * 10.38 • 3.43 *
* Max Chl �p[h (ft) � 6.77 * Hydr. nepth (ft) * � 5.39 * 2.34 *
• Conv. Total (cfs) '140328.7 t Conv. (cfs) ' ' 81636.8 t 58691.9 '
R Length Wtd. (ft) • 850.16 * Wetted Per. (fU * i 135.13 * 670.04 =
* Min Ch E1 (ft) " 4798.15 * Shear (lb/sq ft) ` ' 2 J9 � 1.23 +
' Alpha * 2.14 � Stream Power (lb/ft s) ' • 28.96 '^ 4.20 '
" Frctn Loss (ft) * 3.56 ' Cum Volume (acre-ft) * 32.22 • 16.55 ` 28.52 *
* C & E Loss (ft) * 0.26 * Cum SA (acres) * 16.71 • 3.26 * 13.62 +
•wxx..xrw+:�it+��i��w��.+::+:+x.xwx�r:+:::.a*aaRra+,�+++.+xawR:Ft�.�++xxr,::xxt:+�:�:��t.+..w:.:.::
Warning: The velocity head has chan9ed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio lupstream conveyance divided by downs[ream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was grea[ez than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need £or additional cross sections.
CROSS SECTION
RIVER: St. Vzain River
REACH: FULL RNEA RS: 52370
INPCTP
Description: The topographic information for this cross-section was taken from
the ACOE HEC model.
. Station Elevation Ddta num= 56
! Sta Elev S[a Elev Sta Elev Sta Elev Sta Elev
Page 86
STVRAIN.rep
.+«+.:..::......+,::.....xx.......+.+.+x.++..+...+.:::.x+.:+.....�.......x...x..
1650 4813.05 1690 4811.05 1720 4809.05 7760 4807.05 1760.1 4807.05
� 1772 4805.55 1809 4805.95 1861 4800."/5 1995 4799.35 2237 4796.75
2478 4�96.65 2594 4795.85 2843 4796.95 3092 4798.05 3214 4798.45
3244 4800.95 3266 4796.35 3285 4"196.35 3319 4798.85 3545 4799.85
3614 4800.35 3624 4801.55 3660 4"/9f.75 3682 4795.55 3"/52 4795.55
3785 4]97.25 3828 4803.65 3856 4800.05 4084 4799.25 4327 4799.65
4562 4800.95 4614 4809.05 4863 4804.35 5093 4805.15 5348 4807.65
5583 480"].55 5842 480"1.55 6121 9807.55 6363 4808.65 6595 4809."15
6864 4810.15 7045 4810.75 7097 4810."/S 7115 4809.75 7132 4812.35
7138 4808.65 �160 4808.65 7180 4812.55 "]19"/ 4810.45 7364 4810.45
7523 4810.05 7686 4809.55 "]782 4809.95 7821 4824.85 7835 4824.B5
7835.1 4B24.85
Manning's n Values num= 3
Sta � Val Sta n Val Sta n Val
+.+..+.++...+..+.......+:+..�..+...+.+.+.+...x.+
1650 .0"] 3624 .04 3828 .07
Bank Sta: Left Right Lengths: Left Channel Aight Coeff Contr. Expan.
3624 3828 950 1060 115� .1 .3
Blocked Obstruceions num= 2
Sta L Sta R Elev Sta L Sta R Elev
:..:.x.«...x.+.:...........xx.x.xx...x:..+.+::+.,:
165a 3624 4800 3828 7835.1 4800
CA055 SECTION OUTPUT Profile #100 year
kf�'RII'R+*k#i1i*thkik'.!+*!'hi#£'.!+ll:hthfiffti#tFxii�tttfftttt4f�f�.Y!*!F4#f�FFRxA*n#kf####kiF#rti�.FY4i*i
* E.G. Elev (ftl ' 4802.60 * Element * Left OB t Channel " Right OH '
• vel Head (fU * �.20 * Wt. n-Val. * 0.070 * 0.040 * 0.070 '
' W.S. Elev (ft) • 4802.40 * Reach Len. (ft) * t * *
* Crit W.S. (ft) + 4801.51 * Flow Area (sq ft) * 4188.71 ` 1020.72 ` 1711.69 •
* E.G. Slope (ft/ft) •0.002501 • Area (sq ftl • 4188.71 � 1020.72 * 1711.69 *
• Q Tota1 (cfsl *16700.00 * Flow (cfs) * 7867.46 � 5690.10 * 3142.45 �
` Top Width (ft) * 2727.47 * Tap Width (ft) " 1779.48 • 195.59 * 752.40 "'
* Vel Total (ft/s) * 2.41 * Avg. Ve L (ft/sl 3 1.88 * 5.57 • 1.84 *
* Max Chl Dpth �ft) * 6.85 ' Hydr. Depth (fU * 2.35 * 5.22 * 2.27 *
' Conv. Total (cfs) *333940.6 ' Conv. (cfs) *157321.2 *113781.7 * 62837."/ '
' * Length Wtd. (ft) r * Wetted Per. (ft) * 1779.78 • 196.36 * "152.62 *
* Min Ch E1 (YU * 4795.55 * Shear (16/sq f[) * 0.37 t 0.81 * 0.36 *
+ Alpha * 2.21 " Stream Power (lb/ft s) * 0.69 * 4.52 * 0.65 *
* Frctn Loss (ft) * a Cum Volume (acre-ft) * * * R
* C S E Loss (ft) * * Cum SA (acres) * ` • *
+.x:«..++.....::.::..+xx.x.x.xx«.•+..:.x:::...:.:::.+.:..+xx+x�..x+x..x.�x.:».x+.w.+.x+.+..+.:.
Warning: �ivided flow rompnted for this cross-sec[ion.
CROSS SECTION OUTPUT Profile #500 year
>4fffttfAff:f'.!'Fx'tittiFkAR'.l�.l1:f'.lR1:f�IFit�ftttttf�tfltttttttRi�tFf:R14t��.t;xt;;Iil£iR+fil4i#1#1f##Y+ii
' E.G. E1ev (ftl * 4804.88 * Element * Left OB � Channel * Right OH *
t Vel Head (ft) � 0.27 ' Wt. n-Val. * 0.070 ' 0.040 * 0.070 •�
R W.S. Elev (ft) * 4804.61 • Reach Len. (ft) * * * •
* Clit W.S. (ft) � 4802.59 * Flow AYea (Sq fU • 8155.38 * 146'].38 • 3540.01 *
* E.G. Slope (Et/ft) *0.002502 * Area (sq ft) * 8155.38 * 1467.38 * 3540.01 *
� Q Total (cfs) �41960.00 * Flow (cfs) •23690.84 �`10130 J9 * 8138.37 •
x Top Wid[h (ft) * 3116.32 * Top Width (ft) * 1601.63 * 204.00 � 1710.68 •
* Vel To[al (ft/s1 * 3.79 • Avg. Vel. (ft/sl * 2.90 * 6.90 � 2.30 *
* Max Chl Op[h (ft) * 9.�6 • Hydr. Depth (ft) ' 4.53 * 7.19 * 3.19 *
* Conv. Total (cfsl '838912.3 * Conv. (cfs) *473654.4 *202546.3 *1627ll.5 x
� Length wtd. (ft) * * Wetted Per. (ft) * 1802.04 ; 204.87 * 1111.04 +
� Min Ch E1 (ft) * 4795.55 * Shear (lb/sq fU * 0 J7 � 1.12 * 0.50 �
* Alpha * 1.70 "' Stream Power (lb/ft s) ' 2.05 * 7 J2 '" 1 14 R
• Fictn Loss (ft) * '� Cum Volume (acre-ft) ' • ' >
* C & E Loss (ft) * ' Cum SA (aCYes) * * • *
f11:*i'R#i4t44tfkF'.lRif'h1:i###i1#i#i;*4iii+####ki#i#4i4Mltti4kf�lA1:1:AI1:Mi1:AifSif#+*#4k#!'.lki1:�.l1:�.lk1fY4
CROSS SECTION OUTPUT Profile }{10 year
1fttRfl#ii4ii4i+ii#'.l1fRF#111Y#fi41�.lfkf111:1f1Rh+4ii1ifYlfii#k>!#R***f11lkk11RtY1'F44i4�ki{ftl:ki*11
" E.G. Elev (fU ' 48�1.19 " Element � LeEt 09 * Channel * Right OB *
• Vel Head (fU ' 0.22 * Wt. n-Val. � 0.0"10 * 0.090 • 0.070 *
* W.S. Elev (fU * 4800.9� * Reach Len. (fU * * * *
* Crit W.S. (ft) � 4800.64 � Flow Area (sq fU • 1665.69 � 750.20 * 662.57 *
* E.G. 51ope (ft/fU •0.002503 " Area (sq fU ' 1665.69 "' 750.20 * 662.57 *
* Q Total (cfsl * 5950.00 t Flow (cfs) * 1704.78 t 3580.02 * 665.21 *
Page 87
STVRAIN.rep
* Top Width (ft) ' 2662.88 '� Top Width (ft) ' 1760.43 " 181 JO � 720.75 *
* Vel Total (ft/s) • 1.93 * Avg. Vel. (ft/s) ` 1.02 * 4.7"l * 1.00 *
* Max Chl Dpth (fU ' 5.42 * Hydr. Depth (ft) ' 0.95 ' 4.13 * 0.92 *
* COnv. Total (Cfs) '118930.5 ' ConV. (Cfs) ' 340'J5.7 * "]1558.5 * 13296.4 *
Length Wtd. (f[) ' ' Wetted Per. (fU * 1760.63 ' 162.33 ' 720.82 t
* Min Ch E1 (EC) ` 4"J95.55 • Shear (lb/sq ft) ' 0.15 ' 0.64 • 0.14 *
� Alpha � 3."18 * Stream Power (lb/R s) " 0.15 • 3.07 � 0.14 *
� Frctn Loss Iftl * * Cum Volnme (acre-ft) * • ' *
* C fi E Loss (ftl ` � Cum SA (acres) * � ` "
i««x.«..�+.��.xa�.:ki.x+xa+�.x:x::::st:�ii+�*x++x+.:.:r+.��ai+:x.:.::3Fr:�:x.k..s...:::.�:.�:t�t
Warning: Divided flow computed for this cross-section.
CROSS SECTION 0[1TPOT Profile $50 year
a.......+.....+«+......,....:....++,...+...x...+.x.+.....+......+«..._+.__+_+.......+..+.x.+..x
' E.G. Elev (ft) ' 4802.16 * Element ' Left OH * Channel ' Right OH '
• vel Head (ft) * 0.20 * wt. n-Val. * 0.07� a 0.040 * 0.070 *
' W.S. Elev (fU ' 4801.9� "' Reach Len. (fU * ' * `
* Crit W.S. (fU ' 4801.29 ' Flow Area (sq ft) * 3423.28 ' 97"1.11 * 1389 J2 *
* E.G. Slope (ft/fU '0.002500 * Area (sq fU ' 3423.28 * 937.11 ' 1389."12 *
` Q Total (cfs) '12850.00 ' Flow (cfs) * 5628.07 * 4982.98 * 2236.94 '
' Top Width (ft) ' 2"110.70 ' Top Width (ft) * 1775.17 * 192.69 * 742.83 `
� Vel Total (ft/s) ' 2.23 * Avg. vel. (ft/s) ` 1.64 * 5.32 * 1.61 *
* Max Chl Dpth (fU ' 6.42 * Hydr. Depth (ft) * 1.93 * 4.86 ` 1.8"1 '
` Conv. Total (cfs) *257023.1 i Co�v. (cfsl *112571.6 � 99668.6 * 44782.9 •
* Length Wtd. (ft) ' * Wetted Per. (fU * 1775.45 * 193.44 * 743.01 *
' Min Ch E1 (ft) * 4795.55 ' Shear Ub/sq fU * 0.30 * 0.76 ' 0.29 *
� Alpha " 2.52 * SCTeam Power (lb/ft s) * 0.49 * 4.02 * 0.47 *
t Frct❑ Loss (fU * ' Cum Volume (acre-ft) * * * *
* C 5 E Loss (fU * " Cum SA lacres) '�' * * "
.+«..:...::.:,::.,...x+x.«::..:..«.,.....:::...+.+..x.:.«.....::...+..+...::..:.+...x::...r+.+.:
Warning: Oivided flow computed for this cross-sec[ion.
kY}.,yty�}##+hfit�itfif+it4##thiRtl4#i1A'.l+kFFitiiitikf}i#niiR�YFti##iR1}41t�fii##t
. SUMMARY OF MANNING'S N VALUES
1
� Aive[:St. Vrain River
it+..+x:x.�xxi�i++..w+:x.++3++++R+xat.x�i�+�rr:x:.r.R»::tr+..+:w•
+ Reach ^ River Sta. • nl ' n2 • n3 *
r+..xx�=a::t,�+Frw.�+��,.;++xwkx�.ra++++++�x�++i:�rx�x::+.�.r..x.++x
*EXISTING LAKES * 71599 ' .07' .04* .07*
�EXISTING LAKES * "11254 * .07* .04* .07*
*EXZSTING LARES * 70988 ' .07' .04' .0'/'
*EXISTING LAKES * 70673 'Inl Stiuct� * '
kEXI5TING LARES * 70493 • .07* .04* .07*
"EXISTING LAICES * 69651 * .07* .04* .0'1*
REXISTING LAKES � 69589 • .07* .04r .00`
'"EXISTING LARES * 69479 *Inl S[ruc[• ' •
REXISTING LAKES * 69314 * .07• .04• .07*
'EXISTING LAKES * 68"]98 • .0"1' .04* .0]•
*EXZSTING LAKES * 675'/8 • .0'/' .04' .07•
*EXISTING LAKES ' 66768 ' .07+ .04' .0'1*
'"EXISTING LAKES * 66055 * .07* .04* .0"/*
aEXISTING LAKES * 65190 • .07• .04* .07•
'EXISTINC� LAKES * 65125 'Inl Struct' ` '
•EXISTING LAKES * 65050 " .0'/• .04* .07*
*I-25 [o Junction� 71790 ' .07* .04* . .07�
'I-25 to Junction* "]1"/65 * .07• .04* .07*
*I-25 [o Junction* ]1']35 i .07* .04* .07*
'I-25 to Junc[ion* 71701 ' .07* .04� .07*
"I-25 to Junction* 71634 * .07* .04R .07*
�L25 to Sunction* 71608 ^ .07* .04r .07*
RI-25 to Junction* �1465 •Lat Struct* * *
*I-25 to Junction* 71168 * .07* .04' .07'
•i-25 to Junction* 70728 * .07* .04* .07*
tI-25 to Junction* 70584 •Lat Struct• « +
`I-25 to Junction� 70235 * .07" .04* .07*
*I-25 to Sunction• 69741 * .07a .04* .07*
•I-25 to Junction"' 69359 *Lat Struct* * `
*I-25 ta Tunction* 69293 * .07' .04" .07+
*I-25 [o .7unction* 68844 * .07* .04• .07*
•I-25 to Jnnction^ 68234 * .07+ .04' .07R
Page 88
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*I-25 to Sunction• 6�624 ' .07* .04' .07*
. tI-25 Co Junction• 67487 'Sat Struct* • "
*I-25 to Sunction* 6681a ' .0�* .04* .07*
`FULL RIVER * 65�35 * .07* .04* .07*
tFULL RIVER * 64600 * .07' .04* .07*
*FllLL AIVER * 6412a ' .07* .04* .0�'
'PULL RNER ` 63640 ' .07* .04" .07*
*FULL RIVER ' 6317].5 * .07' .04� .07*
*FULL RIVER ' 62�15 • .07* .04" .0�'
*FULL RNER • 59195 • .07a .04� .07*
"FULL RIVER ' 58515 ' .07' .04' .07'
*FULL RIVER + 57401 * .0�; .04* .07`
*FULL RIVER * 56496 • .1' .04* .07*
*FULL AIVER � 56400 �Biidge * ' t
•FULL RIVER ' 56290 ' .04* .04* .07*
*FIILL RIVER • 55330 ' .0�' .04* .07'
*FULL RIVER ' 53990 * .0�* .04* .07*
*FULL RSVER ' 53240 • .07' .04* .0�*
*fULL RIVER * 523�0 * .07* .04' .07*
..F..:.:�.:...+..++::.:::::.+i:s.xr.::.::.�.+«i..::::+.+x��++:..:
�.ww.r..::.x..:.::t::�tt�sax+�x��a++ia.w�xxx.i;++�rr��.r+�*tet<++a.rrxx:.:++3«t
SUMMARY OF REACH LENGTHS
Rives: St. Vzain River
xa...::.:+:.:+�::_.::::::::.x...+x.++a..R+x.�:++s+i.a+R�+i��:tF�«
* Reach = Aiver Sta. ' LeEt * Channel * Right "
...x.,:.:..:,..:+:....+..+..r..x..++.ax..xx:.:+....x.�..+...+a.w.
•E%ISTING i.AI:ES * �1599 * 345• 345• 345*
'EXISTING LAKES * �1254 � ° 266* 266' 266*
'EXISTING LAKES ' 70988 "' 315* 315• 315'
*EXISTING LAKES ' "/0673 *Inl Struct" * *
*EXTSTING LAKES ' 70493 * 542* 542* 542'
*EXISTING LAI(ES * 69651 ' 495* 362* 362"�
*EXISTING LARES * 69589 ' 275' 275* 275*
�� *EXISTING LARES * 694"19 {Inl Stiuct* • '
tEXI5TING LAKES 69314 319* 516• 516'
� •EXISTING LAKES ' 68798 ' 683* 1220• lll2'
*EXISTING LAKES * 67578 '" 684* 810• 815•
'EXISTING LAKES * 66768 * �13* '113* 713'
'EXISTING LAKES ' 66055 • 10�5' 865* 216*
•EXISTING LAKES x 65190 * 140* 140R 140'
*EXISTING LAKES T 65125 •Inl StYUCt• * "
'EXISTING GAKES ' 65050 * 0* 0* 0*
*I-25 [o Junction• 71770 * S` S* 5*
*I-25 to Junction� 71765 • 30* 30* 30*
•I-25 to Sunction* "1ll35 ' 6]* 6'J• 6"I*
*I-25 to Sunction' ]1"]O1 * 34* 34* 34*
*Z-25 [o SuncCion• 71634 • Z6* 26* 26'
*I-25 to Junction* 71608 * 376� 440* 493*
*I-25 to Junction* �1465 'Lat S[rucC* * `
*I-25 ta ,Tunction• "]1168 * 376* 440' 483• �
*I-25 to Junction� 70728 ' 800.5* 494R 504.5*
*I-25 to Sunction* "]0584 *Lat Struct* ' •
"I-25 to Junction* 70235 • 800.5* 494^ 504.5•
*I-25 to Junction* 69741 * 268.5* 448* 455*
*I-25 to Junction* 69359 *Lat Struct* * •
*I-25 to Junction* 69293 * 266.5* 449* 455*
*I-25 to JunctionT 68844 ' 341.5* 630* 556*
*I-25 to Sunc[ion* 68234 ' 341.5* 630' 556*
+I-25 to Sunction* 67624 • 684* 830* 615i
*I-25 to Sunttion* 6748"1 *LaC Stiuct• * "'
*I-25 to Junction* 66814 ' 1040* 1079* 1040*
*FULL 2IVER ' 65735 * 95" 1135' 1025"
"'FULL AIVER * 64600 ` 393.5* 480` 405*
+FULL ftIVER * 64120 * 393.5* 480* 405+
*FULL RIVER • 63640 * 490' 462.5* 415•
*FULL RIVER • 6317Z 5 ' 490^ 462.5* 415`
*FULL RIVER • 62715 ' 100+ 3520' 100•
*FIILL RIVER * 59195 a 530* 680* 520*
*FULL AIVER * 58515 * 780' 1114* 480*
•FULL RIVER + 57401 * B30' 905r 790'
� *FULL RIVEA ' 56496 • 233* 206* 180*
Page 89
STVRAIN.rep
*FULL RIVER ' 56400 *eridge * • *
� *FULL RIVER * 56290 ' 770' 960� 1165*
`FULL RIVEA ' 55330 ' 890' 1360* 1550'
•FOLL RIVER � 539�0 ' �40' �30' B20*
*FULL RNER • 53240 ' 820' 870' 840*
*FULL RIVER a 52370 * 950i 1060* 1150•
..+.,,::....:..:.................:..:....,.:«......xr+.xx...�.,.:
:.....,...+,..::.,..::::....:................x...:.....s+...a.......x+.x...:..«.
SUMMARY OF CONTRACTION AND EXPANSION COEFFICIENTS
RiveY: S[. VYain RiveT
wxxrwr:Rwr:fwwwrtKxff��xt���rrwx+�f+w+x�s«riitMi-.t-.txrt:r��Y#:
' ReaCh ' River Sta. * Contr. ' Espan. '
xxxwx+�awwrxr++Rxx..irnRrw..x;.++:ax�.,t+ra��xx+rr:t..+
•EXISTING LAKES * 71599 * .1* .3*
•EXSSSING LAKES ' 71254 � .3* .5'"
'EXISTING LAKES � 70988 ' .3* .5* �
*EXISTING LAKES * 70673 *Inl Struc[' * �
'EXISTING LAKES ' �0493 ' .3' .5*
*EXISTING LAKES � 69651 * .3' .5�
•EXISTING LAKES * 69589 * .3' .5�
*EXISTING LAKES * 69479 *Inl Struct' '
'EXISTING LAKES ' 69314 * .3' .5•
'EXISTING LAKES ' 68798 * .3' .5"
*EXISTING LAKES " 67578 * .1* .3'
*EXISTING LAKES ' 66768 * .1' .3"
'�EXISTING IJlKE5 ' 66055 • .1' .3+
*EXISTING LAKES * 65190 ' .3* .5*
*EXISTING LAKES * 6A25 'Inl S[ruct' '
*EXISTING LAKES • 65050 " .3* .5*
*I-25 to JunCtion' 71770 ' .3' .5'
*I-25 to Junction" 71765 * .3* .Sx
*I-25 [o Junction• 71735 ' .3* .5*
*L25 to Junction" 71701 ' .3* .5*
� kI-25 to Junction* �1634 � .3* .5�
. *I-25 [o Junction• �1608 .3* .5*
�I-25 to Junction* �1465 *La[ S[rvct' `
*I-25 to Junction' 71168 • .3" .5*
. *I-25 to Junction{ 70"l28 • .3• .5*
'I-25 [o Junction* 70584 *liat Struct* '
*I-25 to Junction� "]0235 * .3• .5*
�I-25 [o JunctionF 69741 * .3• .5*
'"L25 to Junction* 69359 •Lat S[n<[• *
•I-25 [o Junction' 69293 * .3* .5*
*I-25 to Junction* 68844 ' .1' .3*
*L25 to Sunction' 68234 * .1* .3*
tI-25 to JunctionR 67624 * .1• .3*
*I-25 to Junction* 67487 *Lat 5[ruct• *
*I-25 to Junction* 66814 * .1" .3*
+FULL AIVER * 65']35 * .1` .3*
•FULL RIVER • 64600 • .1' .3*
*FULL RIVER ` 64120 • .3� .5'
*PULL RIVER ' 63640 • .3' .5"
*FULL RIVER * 63177.5 * .3* .5'
*FULL RIVER ` 62715 * .3* .5*
•FULL RIV£R F 59195 * .3" .5•
`�FULL RIVER ' 58515 * .3� .5*
•FULL RIVER * 57401 • .3' .5*
>FULL RIVER '� 56496 " .3' ,5t
'FULL RIVER ' 56400 •Bridge ` "
*FULL RIVER * 56290 * .3' .5*
*FULL RIVER * 55330 • .3� .5'
*FULL RIVER ' 53970 * .1� .3*
*FIILL RIVER * 53240 * .1* .3"
*FULL RIVER * 52370 • .1� .3^
x+«++i�r�+r�xx:.,�.rF�ir.�«++��++rwi.+tratKr:wx++rxx++ta
Profile Output Table - CHECKRAS
•����irk�a�+++ri�rx.+i.�.�R�wKi*��w�wx�++�xx:x.+��xx+t�+K++x:�M»�xx:::::�i�xa..:..«.�«x.��ex.�w+rwa:.�s++ea
R}k#!*IklFiil#'.lAfF#tiil#k*i1iR:l1k4i1f1kFf###f1f{#}#1Yfl1lt411ItTflikktilRlFktt4iikFfiilf*##i4#ii#i#*i##�4
� •*ReaCh ' RiveY Sta * Profile k Fzoude i{ Chl * TOp Wdth ACt ' Conv. Total * Piof Delta WS
Page 90
STVRAIN.rep
� Left SGa Eff * Enc SCa L * Center Station * Enc Sta R � Rght Sta Eff � Min Ch E1 * Left Stagn * Right
� Stagn *
� « - x = . * (ft) * (cfsl * IfU
* (ft) * (ft1 " (£[) * (ft) * (ft) R (ft) " (ft) �
(ft) *
..,::.:..:...x...«++.x.:...:...:.+,..........+.x..�++::x+::xx:..:.+......+x.*+..w:.:..:...,:....+.,+:.,..
x.::..::.:..x..+..+.«+::.:.,....:..:.....xx.:......x:.::.....::..:::.a............*++..r.+..*+....+.+,.,:
**EXISTING LARES * "11599 ' 100 year '� 0.00 * 905.51 ' 53273.2 '
� 887.14 * 1421.50 ' ' 1792.66 * 4827.20 * *
• EXISTING LAxES * 71599 * 500 year * 0.00 * 995.07 * 302676.9 ' 2.50
* 818.80 • ' 1421.50 * * 1813.8� "' 4B27.20 i '
� EXIS'TING LAKES " "/1599 ' 10 year * 0.00 * 878.05 * 12649.7 ' -0.80
' 908.90 * * 1421.50 ' 1786.95 " 4827.20 * '
r EXISTING LAKES • 71599 * 50 year * 0.00 "' e"1e.66 R 13�91.9 * -0.�8
* 908.42 * 1421.50 ' ' 178'1.08 * 4027.Z0 • `
* EXISTING LAKES +• 71259 ' 100 year ' 0.00 * 934.44 "' 58222.9 *
' 1175.20 * ' 1631.50 * ` 2109.64 * 4827.20 * '
' EXISTLNG LARES • "/1254 * 500 yeaY • 0.00 • 96�.08 * 329179.4 ' 2.50
* 1144.92 * ' 1631.50 * • 2112.00 * 4827.20 ' "
" EXISTING LARES * 71254 • 10 yeai ` 0.00 ' 921.99 + 13856.5 � -0.80
� 1183.16 * ' 1631.50 ' ' 2105.15 • 4827.20 k •
* EXISTING LAKES * 71254 ' SO year * 0.00 * 922.27 � 14561.4 * -0.78
* 1182.98 * t 1631.50 * * 2105.25 * 4827.20 *
1 : � * . i .* F # • * x * :
/ * EXISTING LARES • ]0988 ' 100 yeaT * 0.04 * 1ll3.48 * 69260.0 *
* 992.80 " ' 1556.00 * ' 2106.28 3 4827.20 • •
* EXISTING LAItES ' '10988 * 500 year * 0.15 ' 1183.85 ' 387110.0 ' 2.43
* 928.15 • R 1556.00 i " 2112.00 * 4827.20 ' '
* E%ISTING LAKES * ']0988 ' 70 year * 0.00 * 1098.96 * 16542.9 * -0."J9
'+ 1001.81 * R 1556.00 * * 2100.77 * 4827.20 * •
• EXISTING LHRES * "J0988 ' 50 year ' 0.00 ' 1099.23 ' 19381.8 * -0."1"1
* 1001.66 * ' 1556.00 ' * 2100.90 * 4827.20 * '
* EXISTING LAKES * "706�3 * * Inl Struct * * `
* EXISTING LAKES * "10493 � 300 year * 0.08 * 1116.86 * 33259.4 *
• 987.04 r * 1711.50 * * 2103.91 * 4827.60 * •
* EXISTING LAKES " 70493 * 500 year * 0.21 * 1176.61 * 261986.5 * 2.34
i 933.39 * • 1711.50 * ' 2112.00 • 4827.60 * *
* EXISTING LAKES • 70493 � 10 year � 0.00 * 1103.72 ' 199�.1 * -0.78
r 993.53 � * 1711.50 " * 2097.25 * 4827.6� * *
* EXISTING LAKES • 70493 * 50 year * 0.00 * 1104.02 * 2339.1 * -0.�6
• 993.38 ' • 1']11.50 + * 209�.40 • 4A27.60 • '
+ i • + . ♦ . x
* Page 91
STVRAIN.rep
* EXISTING LAKES * 69651 * 100 year * 0.08 * 1368.61 * 40077.0 *
I * 743.39 ' * 1421.00 * * 2112.00 * 4827.60 * +
* EXISSING LARES � 69651 � 500 year ' 0.29 1412 J6 • 283821.3 1.94
• 699.24 * * 1421.00 * * 2112.00 * 4827.60 * •
' EXISTING LAKES * 69651 • 10 year " 0.00 * 1362.55 t 2814.9 * -0.69
' ]49.45 * i 1421.00 " * 2112.00 * 4827.60 * *
* EXISTING LAKES t 6%51 * 50 year * 0.00 � 1362.70 * 3296.8 * -0.68
* �49.30 � • 1421.00 * * 2112.00 * 4827.60 * '
* EXISTING LAKES * 69589 * 100 year * 0.11 ' 1485.95 * 2906�.3 *
` 523.05 * * 1281.00 ' * 2009.00 ' ?827.70 • `
* EXISTING LAKES * 69599 " 500 year ' 0.34 * 151�.69 • 196473.8 ' 1.4�
' 491.31 • � 1281.00 * * 2009.00 ' 4829.90 * '
* EXISTING LARES • 69589 � 10 year '� 0.01 ' 1469.06 ' 750.3 * -0.61
' 536.22 * � 1281.00 * * 2005.28 * 4827.70 " '
* EXISTING LAKES * 69589 * 50 yeaz R 0-01 * 1469.73 * 1058.5 * -0.59
* 535.84 * * 1281.00 * 3 2005.57 • 4827.70 k "
' EXISTING LAKES ' 69479 * ` Inl Stiuct • * �
` EXISTING LAKES • 69314 * 100 yeai * 0.03 * 1513.73 ' 122342.8 •
� * t 439.14 � * 1227.00 * * 1952.8"1 • 4819.50 * �
* EXISTING LAKES * 69314 • 500 year * 0.06 • 1584.98 * 1240269.0 " 4.87
. * 413.69 * * 1227.00 ' * 1998.67 * 4819.50 * '
* EXISTING LAKES * 69314 ' 10 year * 0.00 * 1490.44 '� ll93.6 ' -1.51
* 448.a9 • * 122"1.00 * * 1938.53 * 4819.50 * *
* EXISTING LAI(ES * 69314 * 50 year * 0.00 • 1496.54 * 14849.3 * -1.15
* 445.35 ' * 1227.00 ' • 1941.90 ' 4819.50 ' •
+ � . x • • � x
* EXISTING LAKES ' 68'198 * 104 year * 0.05 F 10'J8.2� • 812'J3.6 *
* 606.61 ' ' 1336.00 ' * 200B.91 ^ 4819.50 "' *
* EXZSTING LAKES * 68798 • 500 yeai • 0.13 * 1464.38 � 842546.3 • 4.�3
� 586.09 ' * 1336.00 * • 2050.4"/ ' 4819.50 ' '
* EXISTING LARES * 68798 * 10 year a 0.01 ' 1003.34 + 792.2 • -1.49 .
• 613.07 + R 1336.00 * * 1995.82 • 4819.50 * w
• EXISTING WKES * 68798 ' 50 year * 0.00 * 1021.15 * 9958.6 * -1.14
� 611.53 • * 1336.00 � * 1998.93 ' 4819.50 * *
. 4 . : . r � :
* EXISTING LAKES * 67578 * 100 year * 0.05 * 1024.36 • 76044.7 *
* 1435.72 i * 1961.50 * � 2440.08 * 4619.50 * F
' EXISTING LAKES ' 67578 * 500 year * 0.14 • 1089.34 * 752303.9 ` 4.48
* 1392.35 ` ' 1961.50 * * 2481.69 ' 4819.50 * f
* EXISTING LAKES ' 67578 ^ 10 year " 0.01 ' 1003.55 * 771.1 * -1.43
1423.21 * * 1961.50 * � 2426.76 * 4619.50 '" *
Page 92
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� * EXISTING LAKES * 67598 * 50 year * 0.00 ' 1008.72 ' 5997.9 * -1.08
� * 1421.35 ' • 1961.50 * ' Z430.07 i 4819.50 * *
. � . . x . « *
* EXISTING LAHES ' 66"768 ' 100 year ' 0.07 ' 937.42 * 64697.3 r
` 1438.42 � 1917.50 * * 23"J5.89 � 4d19.50 * *
* EXISTING LAKES ' 66"]68 * 500 year * 0.21 * 960.00 * 621956.6 • 4.16
* 1422.00 ' * 1917.50 ` * 2402.00 ` 4819.50 * '
* EXZSTING LAKES ' 66"/68 * 10 year * 0.01 ' 9ll.50 * 687.8 * -1.3"/
' 1442.08 * 191"1.50 * * 2359.58 ' 4819.50 * '
* EXISTING LAKES ' 66768 * 50 year * 0.00 ' 920.60 * 9141.3 * -1.01
* 1441.12 * • 1917.50 ' ' 2361.'13 • 4819.50 �
: � . + + : + •
* EXISTING LARES � 66055 * 100 year * 0.09 ' 842."19 * 51705.9 "
* 9']1.62 * * 1412.00 ' ' 1814.41 * 4819.50 * '
* EXISTING LAKES + 66055 " 500 yeaz * 0.28 + 869.88 * 449354.2 * 3.62
* 954.12 ` ` 1412.00 * ' 1824.00 * 4819.50 ' '
' EXISTING LAKES � 66055 * 10 year * 0.01 ' 830.57 * 594.8 ' -1.28
* 9"]"/."/9 + * 1412.00 * 3 1608.3"] * 4819.50 * '
* EXISTING LAKES * 66055 * 50 year * 0.00 ' 834.02 * 8101.0 ' -0.92
* 976.06 ' ' 1412.00 ' * 1810.07 • 4019.50 * *
.� • EXISTING LAKES * 65190 * * 100 yeaz • 0.07 * 1207.36 * 63F00.6 *
� * 954.51 * * 1560.50 • � 2161.67 " 4819.50 * '
* EXISTING LAKES ' 65190 * 500 year * 0.26 ' 1254.86 * 475341.9 • 2.88
• 918.14 * 1560.50 * • 21�3.00 " 4B19.50 * *
* EXISTING LAKES 3 65190 * 10 year * 0.01 * 1169.55 ' 917.0 * -1.16
* 985.30 * � 1560.50 • * 2154.86 • 4819.50 * *
• EXISTING LAI(ES * 65190 * 50 year + 0.00 * 1181.32 * 11650.4 * -0.80
* 9�5.92 * * 1560.50 ` * 215"1.09 * 4819.50 * "
* EXISTING LAKES * 6A25 * * Inl Struct • * *
• x + x x R + •
. k + + � a • �
i r . r w + � x
" EXISTING LAKES * 65050 * 100 year ; 0.01 * 1052.74 ' 1217908.0 *
� 1044.26 * + 1462.50 • ' 2097.00 * 4812.00 * *
• EXISTING LAKES * 65050 ' 500 year " 0.07 * 1119.78 • 2002090.0 * 2.93
• 977.22 * * 1462.50 * * 2097.00 * 4812.00 * *
k
� EXISTING LAKES * 65050 * 10 year * 0.00 • 3008.13 * 764540.9 * -2.08
* 1088.87 * * 1462.50 * * 2097.00 ' 4812.00 * �
* EXISTING LAKES * 65050 * 50 year * 0.00 � 1038.73 * 1075759.0 * -0.61
* 1058.27 * + 1462.50 � • 2097.00 * 4812.00 * '
• + * r * t; : � � * w * ♦
.\ �
.f � I-25 to Junction " 71770 ' 100 year • 0.45 * 309.47 * 339621.8 *
Page 93
STVRAIN.rep
• 983.75 * * 1138.50 * ` 1293.21 * 4822.00 + •
' I-25 [o JunCtion * ]17�0 • 500 yeaY ' 0.38 ' 462.00 * 1150250.0 * 8.10
' 843.00 ' * 1138.50 " ' 1305.00 ' 9822.00 ' *
• I-25 [o Junc[ion * �1"1']0 � 10 year * 0.51 * 254.94 * %531.8 -4.57
* 1�08.98 * ' 1138.50 * ' 1263.92 • 4822.00 * t
* I-25 [o Sunction • 7ll"]0 " 50 year + 0.48 280.11 * 239068.7 F -1.%
� 1001.16 * * 113B.50 F � 1281.26 * 4822.00 ' •
* L25 [o Ju�ction * 7ll65 * 100 year ° 0.51 ` 303.']8 * 309889.3
* 1941.22 ' * 20"/9.00 * ' 2245.00 " 4822."/0 * *
' I-25 to dunction � 71765 � 500 year • 0.46 338.36 * 957029.1 7.79
i 1906.64 * ` 2099.00 * � 2245.00 * 4822."]0 °' �
* I-25 to Junction • 71765 • 10 year * 0.58 ' 283.55 * 84927.9 * -4.56
� 1961.45 • * 2079.00 * • 2245.00 " 4822.70 � •
* I-25 to Junc[ion • 71765 ` 50 year * 0.54 * 296.79 ' 217950.6 * -1.57
* 1948.21 � * 2079.00 R * 2245.00 ' 4822.70 * '
* I-25 to Junction * "11"!35 * 100 year * 0.51 r 314.00 • 304036.6 "'
* 189'1.00 * ' 2101.00 " * 2211.00 " 4822.34 * "
�' I-25 [o Junction * "]1"!35 ' 500 year * 0.45 � 314.00 • 974134.3 �.88
+ 189"1.00 * ' 2101.00 * � 22ll.00 ' 4822.34 � "'
'� I-25 [o Junc[ion * �1735 * 10 year * 0.63 244.91 r '16�76."] * -4.68
' 1966.09 * ` 2101.00 ' * 2211.00 * 4B22.34 * *
! * •
t I-25 [o Sunction * 71735 * 50 year * 0.55 ' 296.21 * 209442.6 * -1.62
* 1919."]9 * ' 2101.00 ' * 2211.00 * 4622.34 * '
* I-25 to Junc[ion * "]1701 * 100 year * 1.00 * 195.69 ' 148917.5 *
* 1962.31 * ' 2090.50 * * 2158.00 ' 4821.95 * *
' I-25 to Junction ' "]1701 * 500 year * 0.98 ' 221.66 ' 421136.6 ' 5.40
* 1936.32 * * 2090.50 * * 2158.00 t 4821.95 • *
� I-25 to Junction * 71701 * 10 year * 0.76 • 185.35 ' 64475.3 * -2.50
` 19']2.65 * ` 2090.50 ' • 2159.00 ' 9821.95 * '
* I-25 to Junction ' �1"/01 * 50 yeaz * 0.93 192.64 • 12101"1.7 T -0."/4
• 1965.36 * * 2090.50 * ' 2158.00 * 4821.95 * '
: * x : + : • +
� I-25 to Junction '" �1634 * 100 yeax * 0.34 * 332.97 • 476416.7 •
+ 1878.03 * * 2064.50 ' * 2211.00 * 4819.15 * *
t Z-25 to Junction * "]1634 * 500 year i 0.56 * 345.00 ' 751988.8 • 3.03
� 1866.00 * * 2064.50 ' ' 2211.00 * 4819.15 * '
• L25 [o Junction * 71634 * 10 year * 0.21 • 289.69 � 256533.0 * -3.08
� 1921.37 * * 2064.50 ` � ' 2211.00 * 4819.15 * *
+ I-25 to Sunction ; 71634 ' 50 year * 0.29 * 321.39 * 411693.1 * -0.83
+ 1889.61 * + 2064.50 ' ' 2211.00 * 4819.15 x '
* Page 94
STVRAIN.rep
� k I-25 [o Junction * "11608 { 100 year * 0.30 * 403.79 � 5359�5.7 �
� * 1879.21 * 2074.50 * * 2283.00 * 4818.10 * '
* I-25 to Junction * 71608 • 500 year " 0.50 • 425.00 * 8434"12.6 ' 3.10
+ 1858.00 � R 20"14.50 * * 2283.00 F 4818.10 ' '
* I-25 [o Junction * �1608 * 10 year * 0.18 * 337.56 * 30088"J.5 * -3.09
* 192"].BO • ' 2079.50 * ' 2265.36 ` 4818.10 * '
* I-25 to Junction " '11608 * 50 year " 0.26 * 390.75 * 465910.8 * -0.83
* 1892.25 * * 2074.50 * * 2283.00 • 4818.10 "' *
* S-25 to Sunction + 71465 ' ' La[ Strvct ' • *
* I-25 [o Junction • 71168 * 100 year R 0.33 * 607.89 * 4835fl5.1 *
a 1955.11 * * 2146.50 * x 2563.00 • 4818.20 * *
" I-25 co Junction � 71168 * 500 year • 0.47 • 629.50 * 797350.4 * 2.81
* 1933.50 • "' 2146.50 * * 2563.00 * 4B18.20 * *
* I-25 to Junction ' 71168 * 10 year * 0.22 * 523.23 ' 246431.8 • -2.90
* 2039."]9 • ' 2146.50 + '" 2563.00 ' 4818.20 ' •
* I-25 to Sunction * '11168 * 50 year * 0.29 * 580.51 ' 412:'87.5 * -0.76
* 1982.49 * * 2146.50 ' t 2563.00 * 4818.20 " "
* I-25 to Sunctio❑ + 70726 � 100 year * 0.41 t 736.69 • 368385.6 •
� * 2129.31 ' * 2219.50 ' • 2866.00 • 4818.25 * t
* I-25 to Sunction � 70728 ` 500 year a 0.53 * 737.00 * 636574.1 * 2.48
* 2129.00 " * 2219.50 '" * 2866.00 * 4816.25 * *
* L 25 to Junction * 70728 * 10 year * 0.31 * 716.91 • 169i53.0 * -2.62
'" 2136.16 * * 2219.50 * * 2866.00 • 4818.25 * R
• I-25 to Junction * 70"]28 ' 50 year * 0.39 * 734.88 ' 306A33.6 * -0.69
' 2131.12 * * 2219.50 • * 2866.00 • 4818.25 * '
� * . a s + x +
• I-25 to SunCtion • 70584 * * Lat StiuCt * w {
. � � � � : x +
� * x + � r . :
* I-25 to Junction * 70235 ' 100 year * 0.36 • 989.55 ' 415A36.0 *
* 2078.45 * * 2200.00 * * 3068.00 * 487"1.40 * *
* I-25 to Junction ' 70235 t 500 year * 0.42 • 999.00 � 7267.06.3 * 2.29
'* 2069.00 * * 2200.00 * * 3068.00 * 4817.40 * *
* I-25 to Junction * 70235 ' 10 year ` 0.29 * 945.63 * 181828.5 ' -2.40
* 2120.06 * * 2200.00 * • 3068.00 • 4817.40 * *
* I-25 to Junction " 70235 ' 50 year * 0.34 ^ 972.71 * 344558.9 * -0.63
* 2095.29 • * 2200.00 � * 3068.00 * 4817.40 * *
. + * . � +* « * « * : f :
�. * I-25 to .7unctio[1 * 69741 * 300 year * 0.39 * 1244.13 * 304220.2 +
� * 2025.8'7 " * 2181.00 i • 3270.00 * 4816.45 ' *
Page 95
STVRAIN.rep
1 * I-25 to Junction � 69741 - 500 year ' 0.46 x 1261.00 = 688112.1 � 2.06
` 2009.00 • 2181.00 " ' 3270.00 ' 4816.45 ' •
* I-25 to Sunction " 69�41 * 30 year * 0.35 * 1147.91 * 149531.� * -2.31
` 2091.85 ' * 2181-00 " * 3270.00 * �816.45 • '
* I-25 to Sunction * 69741 ' 50 year * 0.38 * 1226.98 " 311729.1 * -0.60
' 2043.02 k 2181.00 * ' 3270.00 t 4816.45 * '
* I-25 [o Junction • 69359 � R Lat Struct * * *
* I-25 [o dunction • 69293 * 100 year � 0.41 * 1410.40 * 360011.0 �
* 2036.61 • • 2159.00 ' * 344�.00 ' 4815.6a ' *
* I-25 to JunCtion " 69293 * S00 year � 0.48 • 1416.50 * 647386.9 ' 1.87
* 2030.50 * ' 2159.00 * ' 3447.00 ' 4815.60 ' *
' I-25 [o Sunction � 69293 ' 10 yeaY * 0.41 * 1128.30 • 12�660.9 ' -2.43
' 2080.96 ' * 2759.00 ' ' 3447.00 * 4815.60 ' '
I-25 [o Junction ' 69293 ' 50 year * 0.41 * 1398.92 * 283621.9 • -0.63
• 2048.08 * " 2159.00 ' • 3447.00 * 4815.60 • *
* I-25 to Ju�ction * 68844 * 100 year * 0.43 * 1612.31 * 348868.5 `
* 2053.17 R * 2136.50 t * 3718.80 * 4814.75 * '
� * I-25 to Junction * 68844 * 500 year � 0.44 * 1684.10 * 650923.6 * 1.92
* 2052.00 * * Z136.50 ' ' 3761.23 * 4814.75 * �
. * I-25 [o Junc[ion • 68844 ' 10 year ' 0.40 * 7229.50 ' 730905.3 * -2.39
* 2068.29 ' * 2136.50 ' • 3313.36 * 4814.75 * *
+ I-25 to Junction � 68844 * 50 year * 0.42 * 1587.39 • 283601.3 * -0.58
• 2056.86 * * 2136.50 ' ' 3715.35 • 4814.�5 * *
+
* I-25 to Junction ' 66234 ' 700 year ' 0.42 * 1714.09 ` 359431.6 '
* 1016.85 * * 1234.50 * ' 2730.94 * 4814.00 t *
' I-25 to Junction ' 68234 * 500 year * 0.41 * 1832.52 * 706201.8 * 2.0�
' 1008.82 * * 1234.50 + * 2846.93 * 4814.00 * '
w I-25 [O lunction * 68234 • 10 year * 0.37 * 1028.69 " 146082.2 • -2.25
* 1025.62 * ' 1234.50 ' • 2054.31 • 4814.00 • *
* I-25 to JunCtion ' 68234 ' 50 year * 0.42 * 1660.52 * 285498.4 ' -0.59
* 1019.15 * ' ' 1234.50 * * 2679.67 * 4814.00 ' *
# � x , : : : •
. . . . . � : .
.
" I-25 to JuncCion ' 67624 * 100 year • 0.42 * 1561.15 * 358365.6 •
• 2545.97 • � 2710.00 R • 4228.18 * 4813.45 * `
" I-25 to .7unction • 67624 ' 500 year * 0.40 * 1683.99 • 709183.2 ' 2.20
" 2528.00 * * 2710.00 * � 4238.56 * 4813.45 * `
* I-25 to Junction � 67624 ' 10 year * 0.39 * 1387.82 ' 133673.9 * -2.22
� 2564.21 + * 2710.00 * " 4082.93 * 9813.45 * *
. " I-25 to Sunction " 67624 • 50 year • 0.41 * 1516.94 * 285743.9 " -0.59
Page 96
STVRAIN.zep
� " 2550.79 * ' 2�10.00 * # 4128.90 ' 4813.45 ' *
� ' * * x . : . * • * * *
' I-25 [o Sunction * 6748"/ * * Lat Struct * * '
� w ; i * ++ r * ♦ * . * i
* L25 to Sunction � 66814 * 100 year * 0.37 � 1573.38 * 398248.8 �
* 2402.39 • * 2607.50 " * 4408.13 * 4012.85 « '"
• L25 to Junction ' 66814 * 500 year ' 0.31 • 1924.25 * 832496.3 " 2.5"/
* 2402.00 * * 260"/.50 ° * 4827.90 " 4012.85 • •
* I-25 to Junction * 66814 * 10 year * 0.35 * 1440.25 * 149288.0 ' -2.14
* 2416.03 * ' 260"1.50 � ` 3874.63 * 4812.85 *
� I-25 to Junction " 66814 * SO year * 0.3"] ` 1552.63 316A19.2 * -0.59
* 2406.14 * * 2607.50 ' * 4406.24 * 4812.85 * "
* FllLL RIVER * 65735 ' 100 year • 0.48 * 1881.63 * 31"/066.6 '
• 2712.28 • ' 2221.00 * • 4251.16 * 4811.95 * "
• FULL RIVER ' 65735 " 500 yeaY `" 0.47 * 2069.02 * 863245.1 * 2.92
' 2097.00 * * 2221.00 " * 4262.83 " 4817.95 * *
* FLILL RIVER * 65�35 * 10 year * 0.43 • 130"/.39 ' ll8342.5 * -2.00
" 2128.4� * ` 2221.00 • ` 3435.85 * 4811.95 � *
* FULL RIVER * 65"135 * 50 year * 0.47 ` 1755.19 ' 2447.4'1.4 -0.60
� x = 2117.60 ' * * µ 2227.00 '* * * 3961.05 * 4811.95 '" * *
+
* F(1LL RIVER " 64600 * 100 year * 0.38 * 1784.85 * 395"1.39.6
� 1444.00 ' * 1521.50 * ` 3228.85 ' 4810.85 * •
' FULL RIVER " 64600 * 500 year * 0.48 • 2445.40 * 817449.4 2.56
• 1390.77 * * 1521.50 " * 4143.13 ` 4810.85 * *
* FIILL RIVER * 64600 * 10 year * 0.35 * 1725.57 • 143923.8 R -1.89
* 1481.82 � * 1521.50 • ' 320�.39 * 4810.85 * "
* FULL RIVER * 64600 ' 50 year * 0.3"/ * 1%5.92 • 303561.0 * -0.60
• 1456.08 * ' 1521.50 ' ' 3222.00 * 4810.85 * `
' FULL RIVER * 64120 * 100 year * 0.40 * 1804.80 • 366566.1 *
* 134'].20 � '" 1439.25 * * 3152.0� * 4810.20 � •
* FULL RIVER " 64120 * 500 year • 0.46 * 2502.24 * 857?.95.8 " 2.37
* 1282.52 * * 1439.25 * ' 3868.63 * 4810.20 * *
' FULL RIVER * 64120 * 10 yeaY * 0.36 * 1639.21 ' 136923.3 -1.84
• 1383.60 * • 1439.25 " ' 3022.81 • 4810.20 * *
• FULn RIVErz * 64120 * 50 year * 0.42 * 1790.27 * 26943�.6 * -0.66
` 1361.74 * "' 1439.25 * " 3152.00 * 4810.20 + *
� FULL RIVER * 63640 ` 100 yeaz * 0.39 ' 1748.32 * 379547.3 "
1243.68 • r 1359.00 * * 2992.00 * 4809.55 • *
* Page 97
STVRAIN.rep
� * F�LL RIVEA * 63640 * 500 year F 0.45 * 2838.4� R 873304.3 2.24
' * 1210.08 ' > 135�.00 * * 4048.49 * 4809.55 ' •
* FULL RNER � 63640 ' 10 yeal ' 0.67 ' 1511.41 91481.4 * -2.69
` 1303.52 * " 1357.00 ' * 2992.00 * 4809.55 ` *
• FOLI, RIVER • 63640 � 50 year * 0.42 + 1�30.06 � 263502.1 � -0.79
' 1261.94 * 135].00 * " 2992.00 ' 4809.55 + t
' FOLL RIVER * 63177.5 • 100 year " 0.27 * 1758.44 556730.3
' 1320.56 * * 1372.25 t * 3079.00 * 4807.67 � �
* FULL RIVER • 631�7.5 ' 500 yeaz � 0.22 • 2859.58 * 1�78845.0 * 2.90
' 1296.15 • * 13�2.25 * * 4344.95 * 4807.67 * *
* FULL RIVER � 631�7.5 + 10 year * 0.23 ` 1328.48 ' 208679.2 ' -2.81
* 1332.86 " * 1372.25 � * 3079.00 ' 4807.67 * *
• FOLL RIVER * 63177.5 ' 50 year k 0.27 a 173�.67 � 410923.2 * -0.86
• 1327.11 * * 1372.25 ' * 3099.00 * 4807.67 * '
" FULL RIVER * 62715 * 100 year * 0.28 • 1�68.02 * 529107.3
' 1343.98 * + 1387.50 * ' 3112.00 * 4805.80 • *
* FULL RIVER * 62715 * 500 yeai * 0.1� � 3290.47 * 2335130.0 � 2.66
• 1334.46 • ' 13B�.50 ' * 5071.26 * 4805.80 * *
* FULL RIVER * 62715 � 10 year � 0.22 * 1179.64 * 228397.2 ' -2.]1
* 1349.66 * * 1387.50 * * 3111.87 ' 4805.80 * *
� * FUfL RIVER • 62715 t ' 50 yeal • 0*26 * 1731.40 R 435461.3 * -O.B4
1345.�4 � 1387.50 ` 3112.00 * 4805.80 *
* FULL RIVER � 59195 * 100 year * 0.28 ` 1704.02 * 560313.9 t
* 1289.32 * • 2990.00 ' * 3069.00 * 4803.33 + *
• FULL AIVER � 591% • 500 year ' 0.35 ' 1787.97 • 1177186.0 ' 2.97
• 1281.03 * * 2990.00 * * 3069.00 ^ 4803.33 ' *
* FULL RNER + 59195 * 10 year • 0.28 * 1185.60 * 169065.6 * -2.95
* 1295.56 • * 2990.0� R ' 3069.0� • 4803.33 * *
' FULL RIVER * 59195 • 50 year • 0.28 * 1676.08 ` 419290.3 -0.88
* 1290.49 * • 2990.�0 ' * 3069.00 " 4803.33 ' *
a
* POLL RIVER * 58515 * 100 year * 0.19 * 1431.00 * 826�32.3 *
* 2256.00 * � 3425.50 + * 3687.00 '* 4803.85 * *
* FULL RIVER * 58575 * 500 year * 0.19 � 2292.81 ` 2205056.0 * 3.02
" 1394.19 * * 3425.50 * • 3687.00 � 4803.85 ' "
k FULL RIVER * SB515 * 10 year * 0.16 * 1422.19 � 335472.5 * -2.90
* 2256.�0 ' ` 3425.50 * ' 368�.00 * 4803.85 * *
* FULL RNER * 58515 k 50 year i 0.18 * 1429.�7 • 659798.7 * -0.87
* 2256.00 ' * 3425.50 * * 3687.00 * 4803.85 " *
� . * R � xY . � . * x * .
.
� * FULL RIVER * 57407 r 100 year * 0.25 * 1454.00 * 613279.7 *
* 2532.00 * * 3163.00 * * 3986.00 " 4803.00 ' *
Page 98
STVRAIN.rep
� * FULL RNER � 57401 ' 500 year * 0.24 � 2183.38 R 1683755.0 • 3.11
� ' 1430.05 " t 3163.00 • * 3986.00 * 4803.00 * *
* FOLL RIVER * 5�401 "' 10 year * 0.24 * 1348.48 ' 216425.8 ' -2.89
* 2532.00 * ' 3163.00 * ' 3986.00 * 4803.00 * *
FULL AZVER * 5"1401 ' 50 yeaT ' 0.25 ' 1454.00 ' 470185.3 * -0.8"/
* 2532.00 ` � 3163.00 • * 3986.00 • 4803.00 ' *
* FULL RIVER * 56496 * 100 year � 0.18 ' 2357.81 R 635633.9 "
* 13�6.27 ' • 3534.50 * " 3"/21.00 • 4802.55 + '
* FOLL RIVER � 56496 '" 50� year * 0.35 * 2441.00 ` 1193125.0 * 2.76
* 1280.00 * * 3534.50 ' * 3"121.00 • 4802.55 * *
* FULL RIVER * 56496 " 10 year ' 0.29 * 518.00 * 183164.1 * -3.19
• 3203.00 * ' 3534.50 E " 3"/21.00 ' 4802.55 * *
"' FULL RIVER * 56496 • 50 yeai ' 0.22 * 2297.42 t 497861.6 ' -0.86
i 1348.03 * ` 3534.50 * ' 3721.00 * 4802.55 + *
. . . + . � .
* FULL RIVER * 56400 BR U * 100 year * 0.50 * 190.39 * 195095.1 '
* 3465.24 ' * 3534.50 • * 3664.54 * 4802.55 " •
* FULL RIVER * 56400 BR U * 500 year * 0.34 * 1249.07 ` ' 4.07
* 1975.21 ' ` 3534.50 ' ' 3664.54 * 4802.55 * '
* FULL RIVER • 56900 BR U " 10 year * 0.38 * 190.70 ' 121568.9 • -2.20
3965.24 * � 3534.50 * ' 3664.54 * 4802.55 * '
� * FULL RIVER * 56400 BR U ' 50 year * 0.59 * 190.56 * 153498.7 * * -1.20
' 3465.29 * ' 3534.50 * ' 3664.54 * 4802.55 '�
� } + + + + + *
* FULL RIVER • 56400 BR D * 100 year * 0.41 * 190.40 * 241366.5 *
' 3465.52 ' ' 3565.00 ' * 3664.58 + 4802.15 * r
* FULL RIVER • 56400 HR D ' 500 year * 0.42 ' 1127.06 • • 2.95
' 2040.23 * " 3565.00 " ' 3664.58 • 4802.15 ' *
� FULL RIVER * 56400 BR D * 10 year * 0.38 • 190.86 • 1224'/6.2 * -3.27
* 3465.52 * * 3565.00 * ' 3664.58 * 4802.15 * *
* FULL RIVER * 56400 BR D * 50 year '" 0.48 * 190.58 * 193360.9 * -1.24
* 3465.52 * " 3565.00 * • 3664.58 * 4802.15 * *
F * � + � • : •
* FULL RIVER * 56290 ' 300 year * 0.61 * 1139.26 * 244730.1 *
• 2048.96 * i 3565.00 • • 3665.00 * 4802.15 ' *
R FULL RIVER • 56290 * 500 year � 0.57 * 1751.43 • 686713.9 * 2.70
r 1913.57 � � 3565.00 * ' 3665.00 * 4802.15 ' *
* FULL RIVER * 56290 * 10 year * 0.37 • 199.48 � 137169.9 � -2.30
" 3465.40 • * 3565.00 * " 3664.88 * 4802.15 * *
• FULL RIVER ' 56290 ' 50 year * 0.55 * 199.84 * 206650.3 • -0.63
* 3465.16 * * 3565.00 " * 3665.87 " 4802.15 ' •
R ' 1 1 f t 1 1
� i i 4 t 4 fi 4
!
. * FULL RIVER • 55330 * 100 year t 0.34 � 2636.30 � 449667.7 *
Page 99
STVRAIN.rep
� • 1390.10 * ' 3693.50 * ` 9473.00 a 4�99.75 ' *
� * FULL RIVER • 55330 " 500 year ' 0.40 � 2938.10 ' 1007078.0 * 2.45
� 1380.38 * * 3693.50 ' ` 4473.00 4"199.75 ' *
* FULL RIVER ' 55330 • 10 yeaY * 0.26 ' 1693.37 * 197597.4 ' -1.89
* 1397.58 * �' 3693.50 * ' 3765.12 * 4799.75 * *
* FULL RIVER * 55330 ' 50 year * 0.32 * 1890.43 * 360567.2 * -0.57
= 1392.35 * " 3693.50 * ' 3768.73 * 4799.75 i •
' FULL RIVER * 53970 ' 100 year ' 0.2"/ * 3166.65 * 581083.2 *
* 1246.74 * * 3920.50 * * 4602.65 * 4798.15 ' *
* FULL RIVER � 53970 * 500 year * 0.36 ' 3'124.12 * 1123405.0 * 1.93
* 1239.50 * * 3920.50 ' • 5013.18 * 4]98.15 ' x
* FULL RIVEA * 53970 ' 10 yeai • 0.31 " 2996.74 ' 171266.3 ' -2.16
' 1259.81 • " 3920.50 * * 4579.24 " 4798.15 * *
* FOLL RNER ' 53990 • 50 yeai • 0.26 f 3136.77 ' 452585.7 " -0.54
+ 1248.77 * * 3920.50 * ' 4596.79 * 4798.15 ' '
+ : * + ' •* � ' w + � +
• FULL RIVER ' 53240 ' 100 year * 0.82 � 3060.55 * ll8189.4 *
< 1442.41 * * 3856.50 * ' 4632.82 * 4798.15 + *
. * FULL RIVEA * 53240 ` 500 year "' 0.70 • 3318.62 • 543203.4 * 2.04
* 1434.30 * • 3856.50 ' ' 4818.99 * 4'198.15 ' `
• FULL RIVER ' 53240 * 10 year * 0.60 + 604.14 ' 82546.9 * -1.66
� • * 3798.47 * * 3856.50 * ' 4410.09 * 4]98.15 ' *
+ FULL RIVER � 53240 * 50 year * 0.79 * 803.46 * 140328 J * -0.45
� 3792.27 * • 3856.50 " ' 4595.74 * 4"/98.15 " `
R t * t * 1* # * t ^ £ * R
* FULL AIVER ' 523"/� * 100 year * 0.93 ' 2727.47 * 333940.6 *
3 1044.52 • ` 3726.00 * ' 4590.14 • 4795.55 " *
• FOLL RIVER * 52370 ' 500 year * 0.45 * 3116.32 * 838912.3 * 2-22
* 1822.3'/ * • 3726.00 • ' 4938.68 * 4795.55 * •
* FULL RIVER • 523"]0 * 1� year * 0.41 ' 2662.88 * 118930.5 * -1.42
* 1858.76 "' " 3726.00 * * 4569.56 * 4795.55 * *
* FULL RIVER * 523']0 * 50 year • 0.42 ' 2710.70 * 25"/023.1 * -0.43
• 1848.83 � • 3726.00 • * 4583.92 • 4795.55 • `
+�+++��r+ww+t�+xts++++�:ww::�rax.�+�t+.�xx.t+�+rwx3+tixx�+�+wr+�:�a+xx�+i+w�+�+:+r+Frixx:+trxx+��M+x�xxr,rxx
+*r+xrwxx+t+at+r.wicxx�::t�r;x�+.;+ti..��+++t+..++iiixx++++�xr,�+s+itr�+r�r�ir,�++�a�++�>+�ix�i�i�rrrx«���+
i
Page 100
1
l
APPENDIX B— Hydraulic Analysis
Post-Project Conditions Model
(NAVD 88 Datum) with CHECK-RAS output
Pre & Post Construction Mode� Plan: �post project plan 4/28/2006
� no
� � 599 Legend
i� ��r
K€f�.'�r;�..� 71168.-.�� ..�.
i�>�}� 71254 W$ 1
xf. 70728 -� 70988 WS 500 year
�' '}' �
j; �� 70493 �WS 10 year
7023 O
a � � 69651 W S 50 year
697
. g� 69589 Ground
69 3 •
. �a,. Bank Sta
`.��� 68844 ... 68798 Ineff
t,�f�� y 0
r n"#..:<.
; 682 LatStruct��
� ' _w
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h���� 67 � . 67578
� r
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z <�� ��,b�':.
v'�.� ..ys-;G�,•
5
66055
i� �
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. .�n-��. �I �65790
_ ; 64600
� , 64120
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i.. �', 63177.5
3 � �-� 627'I S
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Y
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59�95
£��'f .. �� 58515
4a� ,
�}� �..�'.. �.��
(T i F �
" 5740I
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'� ;'� R
56496
° � C Y
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�" ..aes,.
� ��
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. ,�ry :4..._rvC-r
i`,
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iw'i
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__. __
___ - - . 70988 �
. .___..,.__ 70493
-__—___�__ 69651
I-25 to JuncHorr-�� 9479
�� �� 68 68798EXISTING LAKES
6
_ _ _
67578
. ...--.- —_ 66768
66055
_ 35
. . . . �. �6IJ0�
--�--- 63640
.__ ._._. ...�_..N . 62715
<
� FULL RIVER d
— 59195
58515
m
— — 57401
. __.__.- 56496
�- 55330
53970
53240
52370
'r,nial VIS data
HEGRAS Plart pos�projecl
' ReacM1 RNerSla Pmfile OTolal MInL�EI W.SEIev CnlWS. E.GEIw� E.G. VrFCM1nI FbxArra TopWiEM FmiMeNGN
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EXISTINGLN(E$ ]1599 10ypM 1W dB2000 4BY6.OB 4824.08 Q.000006 O.W 59.59 IfiBJB 001
EXISTINGlAKE5 11599 SDyear 100 ae3a00 d83a]2 d02a]2 0000000 000 55].09 )]1.92 000
EXISTINGLPI(ES 1125C 1p0year 100 d92C.00 4825.C6 4825<6 OOOOOOp 0.00 6f0.OJ $61AC 000
EXISTINGLHNES ]1250 SOOyC2t 100 082d00 JB2B91 <928.9� O.W0000 000 01GS.Ti ]))OS 0.00
EYJSTINGW(ES J125C 10 100 482400 d83<OB 601d08 0000010 0.02 40.BZ SC6)9 002
EXISTINGUJ(ES ]45d 50 m t00 68l<.00 E92J)2 I92412 O.OOONO 000 396.53 55].61 000
FYJSTINGLAKES )0989 100yea <03.)6 <62aW OB2505 482<]0 IB25.0.5 0000180 0.61 G46] 93155 009
E%ISTINGW(ES 1O88B SOOyear Cfi92�1 482400 682896 C8255] i828.96 0.000115 �.11 021936 9]a.P o.09
E%ISTINGLN�S J09B8 t0y¢ar 1� 4B26.00 18Pt0] C8P402 <9240� O.W002J 00] 30.50 I9525 0.02
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FJUSTINGfi11�5:� � ]O6lJ Ini5vun
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FJUSfINGWfES� 1019J S�Oyear <692]i d8PL00 69ffifl'f C925.55 CBd8.81 O.OW100 IOJ C6tJ55 tOGO]i 009
E%Iu�INGC!V(ES' 10/93 10yEM tOJ aB2a00 �BZa.p6 ae3/o2 �824.08 O.OOOU11 o.a 26.69 e]].t5 aW
FXI$'rlNCitAl�6 .lOGS9� � SOyPe� 01.43 aeza.ao 482<.11 dB3411 4824J1 OdWOBC 0.2] ]0.5.10 099.Jf 006
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OOSI1NQ.lN�5�'..:6965Y SOyqt 182.]0 d82aW 4826.65 <B]<.tU C82a65 OWO11J OJO 615.1] 115B.ifi 0.06
EXISTIf161NlE$� "@SBB�. 100 615.94 I820.00 1835.3I <02E.J5 <92528 0 WOv92 090 6B9.9J 1J86.6] 0.15
EXISTNGUV�S�' ��64589. . 5W." 6291.09 i821 W <838.]] E825.82 4�8.>< 0000110 OAS fifi2Bd9 fd&5.OJ 0.00
E%ISi1MCi,LAI�5:�.�..68580 10 � IOU i826U0 <826.03 dB2J.02 4820.02 0061]A 009 I1�8 1�25?5 0.11
E%150N(i�L41�5 -89509 �50yeet. 1B4]0 482400 C8265fi C820.16 d821.5] OOOWII Ofi0 ]0541 OC32< 0.)C
E%IST�NG WtE$ .�B91IB In15Wn
E%ISTINGIN(ES" -8�114 100yeer 6C591 0819J0 0821.I5 4B20W E021]5 000046 �9� 108290 1d00.5U OW
IXISIING�5 <62114 50h 6291 W CBi9]0 C82fi.td CB2136 082fi.15 0000038 069 91C218 1498.8] OQ5
F10STINGLl+1�5 :8931d 10'yva . 100 49t9)0 0819.80 <919]2 C01980 6000008 Od1 508J 1]230fi 001
i EXISTINGW�ES - 6&Atd 50ytar �62.)0 J819]0 G820]8 E819&5 CO20]8 000000i 032 Sfi6.99 13539) 0.05
EXISTINGIA�fE5.���.�88i98 10�year. 12659 C819]0 CB2168 CO2009 <82t.fi9 O.W0111 010 10C19fi )62.Ofi 009
E%ISTINGW(�S�.c,-fiHIS18 500. � BP1.]0 C819]0 <B26.06 C821fi9 <az6t0 O.OOOtOC 1.62 52d025 993.00 0.12
E%ISTIMGlA1�5.':.66198 � 10" 100 J819]0 <Bi9i9 J819.]2 CBt9]9 0.0000�0 0@ 2]J filOA2 0.01
EX�$npG�AKE$�::.'ggl9g Sb�ea� � tB2.]0 181910 <820.]0 C019.65 C920)< OOOOL�9D OJO 539BB )1032 008
�%ISTINGLN�S �B752B 1WyPdl� �2659 <B19]0 d021]] d611.]9 OOOOOt 113 669<] 40B.OB Od5
FXl$l1NGlA1�5 :6]5IB 590yea� � 83]130 C919]0 4ffi548 G825.f5 0.0008}5 ]41 35]U.Bt 51B.12 025
EXI$IJMGLN�S 6i5/6 10� 1.00 <919]0 4B19J9 <Bi9]9 O.OWOIB 0.03 20]9 3]1.J] 0.02
F](�Sl1IJG�LAIiES 679/B SOY�. 182]0 4919)0 CBZ0.5] <0205i 0.0002]2 O56 ]]001 ]89.01 0.11
FXISTIN(i,WtE5 bBl68 100, I2fi59 <B19.I0 482119 <021.1H O0W1I5 058 12514i 96085 OOB
E$fl$TIryGLpI�E$ E6]88 $ppyej� � 11]2051 C019.10 48250] C8L5.1] OOOM54 21] 4]i6.]0 909.89 0.18
pU$TINGIAKf$ 88168� tOyeM�- 1W 4919]0 4819n d819.J1 O.OOOOf9 002 51C0 BJ200 001
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EJQ5�I[�(5l/1((ES ' 5519p tOpyCM�� ]26.59 <019]0 <82080 EB19.9C C820.80 000030] O61 1191C0 1085.I6 010
E}(�S{IN4 Y�+1�0 500 � 1tJ205J 4019]0 G82]8) CO21.19 082].9] �000025 3.48 C611fi0 11<]28 021
EX(511NGL'A�iES 6519b 10:� 100 <919]0 6819]2 4B19.12 OB1BM �.00�391 O.YS 2112 tOB1P6 006
E%ISTINGIalNE5�_• 65190 SOytie� 182.]0 �019]0 482�.tfi 081980 4920.18 O.W0.tfii O.JI �9YB0 1081.iJ O40
EXIStINGLAICE5� 85125 Inl5trun
EXISTINGIIJ(F.S:.:HS�iO 100 �2fi.59 4Bt]00 <82056 68211.58 OOOOOW 0.09 8980.60 110t28 0.00
.. _.... . ._ .. .
E%ISTJNGLPf�5 85050� SW� � tt]28.51 i013.�0 a82]50 082]52 OOOW32 093 12295.08 tiC550 0.05
EJN$71N6{,pKE3 8�05p. 10ye% . 1.00 d81300 0818.08 <918A8 OOOOOW 000 BI01.9fi tO8J.98 0.00
�1(IyT�NG(.p�$:. 65G50 SOyrer 192]0 6812.00 i81995 1819A5 0000000 O.M 9Wfi.12 1099.]J 0.00
I•ESb.JUrcIfV� 71�/0 . 10D Y 1fiJ00.00 4BT2.00 i8]].11 <029W 183398 O.W2420 ].]B �201A8 1B6].81 0.0.5
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4IS4iJivitlnn ]1]10 50��� 1285000 aB]2.00 de]15] 4828.8] de32.]3 0.002Bfi5 ]W �B�B.i5 286.]B O.Ce
I �y��p�yj�pp� � ���5$ tOpyvr tfi]0�.00 EBYl.]0 dB3283 C&lO.00 d8]3.88 0.002925 BSt �2].20 21d180 051
1
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F?$phiphGn. . )1]% 10 �arr 595000 OB22.>a 083829 1921a0 192855 OW692� 6.]9 090.61 51821 050
HEGRAS Plan:past projen(Con4nue0�
' Reac� Rrver5la . Pmfik QTodl. MInC�EI W.S.EIev CMW.S EG.EIev ��EGSbpe VdChN' �Flow�qrea TapWWN FmuGekChl
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L25bJuncWn ]i]]5 SOOy2az d19fi000 J622.J0 L&069 4B3G.60 49i3H 0001TI1 10.10 <928]1 2CCfi.ID 09E
1�25MJwction )1)% 10y¢6� 5950.00 4811.31 JB2B.Od J62]OB 482BBt 000600] ].OJ 861.1fi 602.5C O.W
I-25bJunctlon P19d5 SOyex i2850W 6923]C 4B31A2 OB28.99 4B32.1] OW]]24 B.30 f693S0 1929A2 OSS
425bJurictipn 91]Ot 100 � O 1fi]OO.W <821.95 J929fiC <82964 Cfl"f2]9 001396 id29 H9C.06 11]0.51 100
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1-25bJuu.tlan ]1631 100��at .�. i6]00.00 dB1915 E9JO.fid L82536 1831.18 0.001185 591 305159 196158 0.33
1�25bJ�mctlon )163/ 5�O�.yey d19fi000 C91915 48b11 C929.90 G095I8 O.W]5B1 10.fi8 6C60.69 2C2930 O51
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L254Jimmon ���]ta� ta�swn
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425bJivwWn,., . ]N6B . -50:� R)G8.5i IB1820 4829<t 482q.J9 <B29]6 O.OOOBi9 5.1fi �3550 201].90 0]U
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I-25�bJmkYiun'. � .P0215 � �50�earr 126GB]0 <81]d0 <83].9J dB15.88 q8282fi 0001389 SC> q22009 200C.B5 0.]J
_ 125bJi�litlon � 69Idb iW 1605506 d81fi.0.5 dB3P]6 <B261C �828.H 0001908 fiO2 5059.% 19195C OJ9
125lir:luitlbn 69141 5p0 35G69.91 <816.05 <930.1] <82]91 0830.I3 OW1�]] fl65 8098,98 2pptgp Od]
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125bJucUon G9P93.. 54p J]856]0 iHi5.60 e82s2(1 a8Y1.1] �929.89 0002111 BJO B512B] 183993 OOd
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125bJtinc7lan G929J 50 12fifi0.]0 6015.60 d92621 d825.12 4026.62 0.002013 855 0202.10 16IOBB 001
4Z5bJ1ifCtlwF` 8B6�4{� 'i9D - 159]OA1 G91C)5 C@SJ9 082829 O.UOEiCt ]pC SWS.W 1611]B OAJ
415bJi1¢tlon 89Aqp- ,506 3i889J0 d81t]5 1828d9 CB28.T2 0.0021�5 8]0 BWO.B3 1]21.91 O45
L256fJ�vKticn - BB&1i��- ,�AiY" 5950.00 a01a]5 482].C3 a82J.93 0.0�088 599 161)2t 1TL9.50 Oa0
125fo.lukLCn 6BBtlM1' 50 'y�. � 12fi60J0 601C.I5 d8Z5.20 C825fi8 OW201] fi96 IW3.88 15]142 042
I-25bJwKtlo� 89]39�- 1U6.�".. .�: �59]aCt 081<.00 4B2<.6d GBZSW O.W100B ]56 $625.p9 f11205 Q43
1=35N;{u4U0n 0823#. 500�3�i �. 31fi89.]oj C81<.00 C62>.15 483).5] 0.001815 BAO 9922.90 18M16.dB OC2
HZS�JiinGllp� 6@84-��_ 'f0� «�- S95p.Opi dB1a.W 4B�IA1 0812.81 0.001658 SIB 2W2.85 102868 0.]]
IRSWJNktld� bE139 � $U 1]668.�01 aB1s0� 482401 G821.51 O002p2] ]28 Nt082 t651]3 Oa1
L25bLnt40n B]�24 100yWf :' 159]dAt 401]AS d829.fi0 O8Yl.90 0.0@006 882 50fl5.1] 1560.C2 OAt
1.251aJurN9on �6]B24 . 5fp'... J]869)0 ABt]0.5 482fill C826.53 O001B65 ].12 9]02.]G 1609.01 Oa1
1-25bJunctlon� � 6Yfi2q 10yeai..�� 595000 aB1J45 a92t39 aazin OW1901 5.16 219138 138J.82 O.Jg
L25bJirtK001i 61614, .i..5pyga �� 12fi6B.J0 6013.d5 asn.s5 E820.]/ Qpp2p1) 6.5] 0.552.]9 1515Afi 061
1�25bJuiitlq� . 6Y/8� 1a151ruc1
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I-25bJNWUOn 809f0-� �IIQ �� ]Ofi32.J] C812.B5 dB]i.90 402520 0.001]9J 6.fi0 10552fi1 22]0.00 0.3fi
125bJqKtl00 BBB14 10 � 595000 0813.65 d820d0 /820.31 0.001508 110 TB2B2B tId0Y5 O35
115b]unrAon fi6911 � W� f16fi0.�0 4912.&5 482183 OB21.05 O.pp�5p0 S.SJ 51]iA0 t551.0] 006
, FULLRI�E�ER� &5]35 100. � -. 16]00.00 0811.95 GB20.09 i820.d5 O00P].1 ]f0 SBJ�J] 1881fi] OC9
NI,LRIVE(i: %]35 500yee�..� d19fi0.00 E811.95 C82J01 CBTJ39 0002381 816 it]86.16 20fi9.10 OE]
FUl1RIVER 65]35. � ]0����C � 5950.00 OBfl95 4B1B09 a810]9 O.p0152B SA2 33]B.tP t]OZJ9 O.aa
FULLRNER� 65/33 50p%� ', 12850.W dBfl95 4019.d9 d01981 OOS2169 B.EB 15�2./9 1>55,19 py)
NEC-RAS Plan.oosi pmi���Contlnuea)
Rexh RiverSta Prufile � �OTolal MlnChfJ W.SEIev CmW.S. E.G.EIe¢ E.G}3bpe � VNChM �� �FqwAree Top�,N�iGlh. -.FYpidepCN
. � frnl � (�U (nl (n) IXI. � - (Nn (wsl � (wn) �-.'L.-.
FULLRIVER 6G6pp ippypar � 16]00.00 <91065 aet).95 <818.09 0.0p1)BS 566 fiLW.Nb 1>948] 0]B
FULLNNEft BJ80p SOpyex 41960.W d910&5 d920.5] qB2081 �001608 821 1T2004J 2M6.60 Od8
FULLRIVER 61fi00 10ypdr 5950W dBtO&5 aBt606 aet6d5 O0D909 <2a J596.89 1]25.A a.15
FLLLRIVEF 64fi0p 50yvx 1285000 4810.85 <B11.J5 i81]d] 0.001]93 5.11 5&t365 1]f5.82 O.J]
fOLLRIVER 6tl20 t00yBY. 16]00.00 d8ID10 Ofi9.12 <915J2 dBt]28 000]0�5 ST/ 65B9.fi8 Y216.99 Od0
FVLLftIVER 6tl20 Spp�yeN 41960.00 481020 OB1953 d81616 1919.]] 000235] P.61 1f]33.82 250].01 Oi5
FULLRIVER 6C120 t0�yea� 595000 <B1020 ae�5ae aeiaao G8�5]9 OOOtB9B dA8 ]380.59 ifi92.]8 0.]6
FULLFNER 6N20 50yea� 12fl5000 <Bt0Y0 <816C] dB150fi d91662 O.OOi2]5 Sfi2 501005 2111.55 002
FULLRIVER fi]6d0 100yEN 16]40.00 dB09.55 <81629 d01CA5 d816dd 000193� U1 fi&5].fi1 Y120.55 OJ9
FULLRIVER 63610 500� �� H960.00 OBOA55 C91fl59 <B15]5 C818Bt O.W�112 ]20 19i10.91 2803.90 04C
FULLRIVER 636C0 10 5950.Op <8p9.55 <81J.fi0 aB1225 d91J.93 0.006929 IOfi 212415 106fi24 O.6J
Ff1LLPIVER 63600 SOyea�� 1285000 49p9.55 48�5d9 OB1a05 iB15.65 0.002A8 550 52]d2J 21]229 OA2
F1ILLRNER 631�I.5 iWyesi i6]W.00 CEO)fi] �915)9 <9t1.01 4B15.% O0W89B 1.90 8588.81 3851.Ii 02I
FULLflIVER fi31TI5 5WyeaP; 419fi0.00 <90]b) <9t9.36 4B1]96 d818.]] O.OOp540 J.88 31�0903 208641 0.]2
FULLRNER 931JI.5 t0year� 595000 <90)61 <9129] 4809.56 CBt].02 O00p913 T.% ]Bfi8.fi2 Y10B.4B 0.2J
NLLRAR2� 631T)5 .50 1]BSO.pp 9801.6J 481<.92 <B10.5fi 1814.88 0.0009]8 ].65 105008 2fi]O.fi5 0.2]
FULLP�� 62115� iWyts��� 16]00.00 0605.80 1815.3] G810.50 d815dfi O.WVJ9C 1.12 8265.00 321C.35 0.28
FULLRNER �. 62115 SOJyP3 -�':� 419fi0.00 09QS.W OBifl10 dB1]33 C81B1I O.W0313 38) 2fiGW.f5 3493.99 0.1fi
FII�RNER 62]15 1UyFar .. 5950.00 JBO5.� d812.fi6 i80900 <812.J0 0.000619 3fi8 3)98]2 25Tl.00 0.�2
FULGRNER � 62T15 50 12A50_00 dBl15.90 iB1650 <910.OE 481490 OW06I1 ]fiB 6Tq.0) 3161]] 026
fl1LLRNER 59195 100yc�a��..� 16]O�.W 1BOJ-J9 �91<]6 <811.1C d0A.50 0000865 656 1618]6 3183.fiC p28
NLLRNER 5819S .SUpjEal;.- 419fi0.00 CBOJ.JJ �Bi]42 �B1JIB d81]69 OW1215 656 1309202 9J42.81 03<
FULLWVER. � 59195 10ywa,,�. 5950.OU IBOJ.�3 1911.00 <809.16 C8t1.55 OOP}AO J96 2930.J5 2830.44 0.28
FURRIVEX. SB195 50.�rl8.� 4&50.00 dBW.A <B1JA] 68ID.5] <Bll.fit OOWlO9 lJ8 8109.18 310.5.15 030
FULLRNFR 58515 1W����'.. 161C0.00 dBdl.fl5 d910.0.5 <809.90 CBidII 000�006 �.21 920&46 2W5.10 0.19
FULLRNER 58515 5W,-� <19fi0.00 aB09.fl5 dB9.10 aetL5J 9BiZ26 0.000318 ]W 21]55.fi2 M1822 O.tB
FIILLRIVER 5%15 ID��� 5950W <801fl5 �B11JC <009.0 <9ll.iB OOOW15 29 5050.91 TSJ083 0.16
FULLRNER 5&515 50��' 12850.00 <BOJ.� 481JR i0W.0 4892< OOOOJ]9 290 i9lfi)fi 259B.ifi 0.10
FIILIRIVER 5J10t iQOye@/;.. ifi]00.00 C80]00 d81].5] CBtO,Jfi C81].fifi O000]J] <29 P96.11 2805.W 025
FULLRIVER � 9401 SOU,�� d1960.00 C80]00 d81fi]6 C811.99 L81689 0000591 4)J iT/3949 4l1].60 02C
.� FULLRIVER 5]d01 10y<a- � 5950.001 480JW a910.W C808.96 J810.]6 OOW]Sfi ]]5 ]fi01.1] 2629.50 024
NLLRNER . 5)d01 50y9X.. 12&50.OD C80J.00 d813.65 4809.96 4812.]0 �OW]d] 403 6109.95 2]81.38 035
FUILflIVER �� 56186. �t00..y�.".. 16100.OD <002.55 <B1I06 C009C] L81J0� OOODJIO J]] HIB3.W 2111.80 019
FULLRNER -- 5&99 � ��500�� 01980.00 IBWSS 4015.55 C01169 C8180Z 0001563 )]J 1M35.81 510]J9 0.39
FIILLRNER � 56198 10 5950.00 080255 i009.fi8 900fi20 <809.93 OOOtO5fi d09 1900.1C �A1.53 0.29
FIILLRNER� �5&96 � 50yvd�. .. 1]&50.00 aB02.55 a81I0t 00085d C81216 d0008fifi 3& ]JW.]5 256228 0.22
FULLRIVFR- ' �56100 Bntlge
NLLRNEIi 56290 100 1fi]00.00 <Bd2.15 4810.5� <BOB.lB OBi1.9fi 0.00.1655 9.88 2W&09 20]932 O61
F{1LLRIYER 58280 500 -' a1980.00 C802.15 <Bi].20 aB12.91 G81d]2 OW]]15 10]0 6100.80 350121 05]
FULLRNER SR90 10}C2� 59500p d802.15 <BO8.20 <805.]5 IBOB.fiO dW18B3 509 1160.99 199.d8 0])
FULLflIVFA� 5fi290 50�- 13950.W 4803.15 CBO9.BI C80J<0 GB11.00 O.W!%/ fl55 150215 20U.]0 OSS
FULLFfVER���- 55330 1 tB100.00 a199.]5 0009.05 0HO]29 0809Z5 0.001]90 5]1 10&5.90 3981.]9 031
FULLRh'� �� '+�� �Y� �� 41960.00 6i99.]5 401150 4W8.90 OBH]9 0.001]]B ].09 10840.85 J941.51 0.00
FUl'iA�/ER , 55]30- � 10'yCd[��-. 5950.00 d1B8.)5 400].16 deD139 O80]29 0.000918 ]i6 1585.08 1692A3 09
FLLL.RIV�R.: . 5531� $0 12&50.00 d199.]5 690B.08 OBOE.90 0808.66 0.0012]6 O.B9 5980.05 18�.I4 032
FULLRR�FA� SJ4/0�� 1 16]00.00 <]90.15 dB0)B1 dB06.]2 0900.W O.WOB]2 <.52 101fi8.85 N68.p �2]
FUI.LRNFR. � 539i0 50� 61960.Op <]99.15 CB09.85 dBW.5] G810W 0001]91 6Ji 1989>.iJ 3JA10 0.]6
F.ULLftNER� 53�0 t�;� 5950.00 419fl15 C805.]fi CB03.Qt G905.9] 0.00119] C.5] JU].18 D1212 0.�1
FULL RIVER 536N � 50�"'��� 1285000 619815 <00]3) OBW.01 dBOi 09 0.000802 <.19 &8C.95 3138.53 026
FULLRNER� 532d0 100}�x� ifi]OO.Po 0]98.15 G8L5]8 <806.<) OWB]81 11.09 ]C0032 90fi0.55 O.BI
FIILLRNER 532d0 500ylx Ot960.00 ai99.15 dB0iO2 0806.09 OW5981 11.tl! 10005.]6 JJ18.62 0.]0
FULLflIVER 532<0 10yp� 595000 CI98.15 aBOJ.1t 000429 40p51% ]ID 1C09.58 86M1.14 O.fiO
FUf1RIVEFt 53240� F,EI}ti�er 12850.00 d]9815 <900.93 4805.9] OWB]BS 10.J8 �388.60 90.l_I6 0]9
. FULLRIVER�. SZ110 100 � 1610D.00 q95.55 CBOZ.10 090151 dB02.60 O.W1501 55] 6921.12 I/21.4] 063
FUILRNER 52]l0 500� a1960.00 6]95.55 0801.61 OB02.5] aBOC_BB 0002502 6.9� 1]162.18 3118.92 00.5
Fl/LLRIVER 52R0 10.�� 595000 Ct95.55 4800.91 <800.61 C80149 U.W2503 O.TI ]WB.Q 1682.88 0.41
FULLRNER 52J]0 50�yCd(��� 12&5000 0]95.55 <90�9] <90129 4802.16 U0025W S.R 5]50di 2)10]0 Od2
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HEC-RAS Plan: post project
� Reach River Sta Profile E.G.Elev W.S.Elev Q Total Q Weir Q Gates
(ft) (k) (cfs) (ds) (cfs)
EXISTING LAKES 70673 100year 4825.45 4825.45 403.74 403.74
EXISTINGLAKES 70673 500year 4828.96 4828.94 4692.77 4692.77
EXISTING LAKES 70673 10 year 4824.07 4824.07 7.00 1.00
EXISTING LAKES 70673 50 year 4824.72 4824.72 82.43 82.43
EXISTINGLAKES 69479 100year 4825.28 482527 645.94 645.94
EXISTINGLAKES 69479 500year 4828.74 4828.73 6291.08 6291.08
EXISTING LAKES 69479 10 year 4824D2 4824.02 1.00 1.00
EXISTING LAKES 69479 50 year 4824.57 4ffi4.56 782.70 182.70
EXISTINGLAKES 65125 100year 4820.80 4820.80 726.59 726.59
EXISTING LAKES 65125 500 year 4823.97 4823.87 11326.57 11328.57
EXISTING LAKES 65125 t0 year 48�972 481972 1.00 1.00
EXISTING LAKES 65125 50 year 4820.16 4820.16 182.70 182.70
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r i�-- St. Vrain River FULL RIVER -�i I $, I �
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f Station(fl) Stalion(ft)
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.__-_"_"_-_
w 4830 EG 70 year w EG 10 year
Crit 10 year Cril 10 year
GrouM 482p Ground
l
4820 ' Ineff IneH
. • •
Bank Sta eank Sta
<810
4810
4800 4800 Tr��
200 400 600 800 1000 1200 1400 1600 1800 2000 400 600 800 1000 7200 1400 1600 iB00 2000 2200
� Sfalion(H) Station�ft)
� Pre 8 Posl CorislmcYion ModH Plan'po51 prqeq Olan E28R006 Pre 8 Post CmsUuction Moael Plan:pqst pmjecl Dlan 428R006
R5=6]5IBT�ewalerwilrynJb�8t9.]'mlM1elaFMup5b¢amulNepNPo R5=fi6]68T�ewalefwi�pOMbN19]nl�¢Iakesu0�amall�epmpo
� 4870 � '035--�-.04—�o I 4840 �035�--.04 ��.fI
� 3 Legentl 3 Legentl
5 ___-_'____ 5 ...._._•-.__'_
EG 500 year EG 500 year
W S 500 year W S 500 year
48fi0 4835
EG 100 year EG 100 year
W S 100 year W S 100 year
.__......._.... ___ __�."_.....
4850 EG 50 year EG 50 year
4830
WS 50 year WS 50 year
____�____ ____.'_"_'_
EG 10 year EG 10 year
4040 WS 10 year qez5 r WS 10 year
� � .
o Ground � Grountl
_ � o �
�^ BankSta ' Bank5ta
' 'm
w 4830 w
4820
4920 4815
4810 4810
d800 4805
1000 1200 1600 1600 1800 2000 2200 2400 2600 1200 id00 7fi00 iB00 2000 2200 2400 2600
Sta[ion(fl) Station(fl)
Pre 8 Posl Conslvnion MoOel Plart posl pml�plan C292006 Pre 8 Posl Conslrutlion MoOel Plan'.pwl P�%etl plan <282006
J RS=66055 e5=ss�sornasmeomoozm an.
. Sp ryaOalNePe'091akefI.wLkM1w
.035—�----.04� O35-�----.045---+�
4850� Le end 4840
3 9 3 Legend
g ._.__-•-._._ .._.
Y 5 EG 500 year
EG 500 ear
l WS 500 year WS 500 year
....._.__.__._ �
EG 100 year 4835 Crit 500 year
4840 _.__......___.
WS 700 year EG 700 year
EG 50 year WS 100 year
- • __.._...__
WS 50 year q830 EG 50 year
_.'___
EG 10 year WS 5o year
aeao
WS 10 year Cnl 100 year
c �
Grountl Crit 50 year
c �
� � o
V � � "LL"� Bank Sta � 4825 •
1° '° WS io year
> �
w yw _ .._._.•-_......
'� EG 10 year
4820
:._.».�: .. ... �;:.;. . ... .
� Cnt 10 year
a820 ��� � � � � � � � ���` Ground
•
Bank Sla
4810
4815
4800 yg�p
800 1000 1200 1400 7600 1800 2000 B00 1000 1200 1400 1600 1800 2000 2200
Station(ft) Station(fl)
'd PreBPostLonsWc�ionMotlel PlartOoslprolMPlan C292006 PreBPoSICon5irvcYonMOEeI Plan'.pos10ro1��Dlan a2B2W6
RS=65125 IS II RS=85050
4840 035-�--.045-+� Legend ��035�---.045-� Legend
tl 4835
5 ___""._"__.. ___...-
EG 500 year EG So0 year
WS 500 year WS 500 year
dB35 EG 100 year EG 100 year
WS 100 year 4830 WS 100 year
EG 50 year W S 50 year
__..,.._..__
4830 W S 50 year EG 50 year
EG 10 year WS 70 year
4825 _...._.•-_-__.
WS 10 year EG 10 year
c c
GroorA � Ground
� 4825 � ° •
� Bank Sta Bank Sta
m m
w w
4820 �
A !i&t�'� s ��"��:s �:/ }i� �. �
.t'a 3h :.r' �f� �i.+'�'4'A 'e��P' ,_'��
aezo =., ..�. '":q. .h � m .,; .. r,;f.
.,�""'�'.:x�g_. ,1;•-.,
ifi._
t;.fii' -ry"�:-
4815 '7,t�" �
4815 �Y�`'Art:
�::�.� , :_':.i` �_.. . ;
4910 4810
800 1000 1200 1400 7600 1800 2000 2200 B00 1000 1200 1400 1600 1800 2000 2200
Station(R) Station(fi)
Pre 8 Posl LOnsimpion Model Plan:0��Cqecl O�an dQfl4006 Pre 8 Pqsl ConsVutlion Motlel Plan:pos�prqlcl plan <2d2006
ft5=H9I0T�¢cm5ssxlqnsM¢OcwnslreamMOeoII�eL]5�mnbBe� R5=J965T�¢EIOCFetlohWuqpnonTeleM1oveNankcOecausellbxcan
� �—.�J—�. �--.��--� �—.0�—�.�--.0�---�
4855 � Legend 4645 4 Legend
� _....._.__. ____..._._...
EG 500 year EG 500 year
WSSOOYear '._____.. ._......__....____._____.._..._. WS500year
aeso
Crit 500 year Cnt 500 year
EG 100 year 4840 \ EG 700 year
W51o0year \ \\ W5looyear
4845 _ . . . _.___•_..__..
EG 50 year EG 50 year
. -..�_._.__.._....____.____ WS50year WSSOyear
� 4835
4840 � \ Crit 100 year ,.. Cnt ta0 year
i � .._...� ___ � -_ . .. .. ..
� \ EG 1 o year � CrR 50 year
o . o�_. ..;. . . ...._..�.....__
� Cnt 50 year 'm ' EG 10 year
'v
w WS 70 ear w
4835 Y WS 10 year
Cr�10 year <830 ..�;, ' Crit 10 year
� Grountl '�'� Gmuntl
--� •
4830 I�reff IneK
• •
Bank Sta Bank Sta
4825 �:�
4825
4820 . 4820 —.—�—�-�
-1000 0 1000 2�00 3000 4000 500 1000 1500 2000 2500 3000 3500 4000 4500
Station(R) Station(ft)
, Gre&Pwi Cons Wtlion MOEeI Plan:past prqect plan <284�06 Pre 8 Posl Consirvclbn MOEeI Plan�.posl qol�plan 42BR006
R5=]P]5ID¢Cmssseclnnkl�eupNeameEgeoll�enp�nOti�owrt R5=)f)O1qeMevtr2lbw��nN¢IeHowNanho�NSWsssttU
d845 Ipl p �.07� Le9entl 4845 SY 0 �.07—� Legentl
7 4 7 4
____.. _ ....._.."'"'__
EG SOU year � EG So0 year
_..._ _--_ ....._.... ...__...._. .. WSSooyear � W55aDyear
Cnt500year _" ____._._ ......__ _ Crit500year
48�� EG 100 year 4840 EG 100 year
\�\� \\\\ WS 10�year EG 50 year_
♦
�EG 50 year Cnt 100 year
W 5 50 year W S 100 year
6835 , � _ ., Crd100�year 4835 WS50year
r __... . . __ _" . . .. .. ........ .. � ...
y Cnl 50 yea� Crtt 50 year
� �
o _...._.�_.'__ o __
� _ ""'__.•.__.�_
�^ - - EG 10 year EG 10 year
'v 'y
w WS 70 year w WS 10 year
0830 — Cnt i�year 483� Cnl 10 year
7� '
Grountl Ground
a �
Ineft ��R
BankSta �;� 6ank5ta
4825 4825
4820 4820
1500 2000 2500 3000 3500 4000 4500 1500 2000 2500 3000 3500 4000 4500
� Station(fi) Station(ft)
Pre 8 Posl Conslrvction MoOel Plart posl praecl p�an iR82006 Pre 6 Pos�Lons�mcllon MoON Plan'.pcsl D�1K�Glan dR02006
� R5=I16A T�scrosiMoncl�eEownAream tlpeolNe�praON^�^ R5=]16�8 T�epomfeMnaapprodnalelY�01e¢IEo.mNeamolNen
� �om�—.o�--� I �o�--o�--'�
4845 Legend aB45 tl Legend
....._._.-_._... _.......,..._....
1 EG 500 year EG 500 year
WS 500 year W$500 year
4640 � EG 100 year 4840 EG 100 year
I W 5 100 year W 5 100 year
_ . _ -____.._.._._..
BG 50 year EG 50 year
,_.-__ .._.___. _._.__...... Crit500year '___'_ .........__• WSSOyear
4835 4835
�� \ � WS 50 year Crit 500 year
� ____...._._.. .._..........._.
\ EG 70 year EG 10 year
c "
"' ......... . _ . WS70year � ......... WS10year
o _ .. ... a ... ... .
'� 4830 " Cdt 100 year � 4830 ... Cnl 100 year
>y y ?s.
w � `�' Cn150year w �.�f � Onl5�year
rr Cnt 10 ear
Cnt 10 year ,�.,-; Y
4825 Grounl 4825 GrounA
� IneR
Ineft �'
� "E� Bank Sla
Bank Sta
4820 4820
4815 . . 4815
1500 2000 2500 3000 3500 4000 4500 1500 2000 2500 3000 3500 4000 4500
Station(ft) Slation(fl)
� Pre 8 Posl Conslmclion Moael Plan:D��0�q��Vlan Orz02 W6 Pre b Posl Conslrvcliw MOEaJ Plart D��P�oI�P�an d202006
I RS=]1168 RS=7a72e
4845 0 0�07� 4845 I 0�.07--�
�4 Legend 4 Legend
• EG 50o year
EG 500 year
I WSSOoyear � WS500year
....___.....__ .._.._...._...
ygq0 I EG 700 year 484o EG 100 year
I WS 10o year Crit 500 year
� EG 50 ear � WS 100 year
Y
W 5 50 year EG 50 year
J935 . . . . 4835
.........._I______. WS50 ear
Cnt 500 year Y
_.____.._......
'_'_____'""" ____— . .
� \ � �� EG 10 year Crit 700 year
� . \\ \ � � EG 70 ear
WS 10 year Y
� o —�
° 4830 " � = 4830 � W510 ear
,_ ,-......
A '+-. Cn1700Year m .:. �.y.:: Y..
>y v
w Gnt 50 year w r ��.,� � Crit 50 year
Cnt 10 year .�,��� Cdt 10 year
�` " Gmune
4825 Gmuntl q825 y
� IrieH
IneR �:,
• •
Bank Sta Bank Sta
4820 4820
6915 4815
1500 2000 2500 3000 3500 6000 4500 5000 2000 2500 3000 3500 4000 4500 5000
Station(ft) Station�ft)
Pre 8 Posl Cons W clron MOGeI Plarc.posl pmleC P�an CR9QOOfi Pre B Post Conslvttim MOEN Plan:posl pm�ect O�an d28200fi .
. RS=70235 RS=69747
4845 ryII �-.07--� .I �---.07 --�
7 q Legend d845 �4 Legend
_....._•-__ ....__..__.
! EG 500 year EG 50o year
� W S 500 year W S 500 year
4840 ....__... _.....__..._.
l EG 700 year Oaao EG 100 year
WS 100 year Crit 500 year
Crit S00 year W S 10o year
4835 EG 50 year 4835 � EG 50 year
1 W 5 50 year W S 50 year
EG�o year Cnt too year
._ ......__.._ `.
� -___ __.__..
c \\ \ CritlODyear s .... ...---'-........
o \ \\ c _.._. ........._..___.__._ EG 10 year
'- 4830 �— ° ,. .
'� ��� �� � WS 10 year m d830 Crit 50 year
y ___......_....____"._ . � ..
_ m
w "'� �-� Cdt 50 year w -- ...." """' - WS 10 year
rv-4 _
Crit 10 year ��"� Cnt 10 ear
_ 'a�4"x.l-�,'� _ .Y
4825 Grountl Qgps ;�5e,'.,.. � Ground
• � 5e^ '
IneR IneH
Bank Sta Bank Sta
4820 4820
4815 6815 .-,T--.—.�
2000 2500 3000 3500 4000 4500 2000 2500 3000 3500 4000 4500 50�0 5500
Station(k) Station(R)
' PreB Posl Con9roclion Model Plart pos�Pm�ec�plan YR82006 Pre 8 Posl Conslrvclion MotlN Plarc.posl prqecl plan 42B200fi
II RS=69293 II RS=68840
� I�I.�--.0�-� N.�--.07 --�
4845 00 4835 00
��4 Legend �4 Legend
EG 500 year EG 500 year
W S 500 year W S 500 year
._______"__ ..______.__
4840 EG 100 year EG 100 year
Cn1500year 4830 WS700 ear
Y
..._._.___"____-_'__._._...... .____...__'_
WS 100 year EG 50 year
.___'___..._
4835 EG 50 year W 5 50 year
WS50 ear __. ___' __..._.
Y --.— EG 10 ear
ai Y
Cnt 100 year 48z5 WS 10 ear
s . . _... � � �Y
s �
o Cnt 50 year c - � Groond
'_ 4830 ____"""_"".. o . ::'
.. — ds
� '_'_.......______..._.........'_" EG70year % ' BankSta
u
w WSioyear w �
���- - ' - CntlOyear 4820
.... �
:,.: ..�:���' �� .
4925 — '-"'`� �Lat Sbuct
" �
° �� Gmund
�
Ineff
� 4015
Bank Sta
4820
4815 4810
2000 2500 3000 3500 4000 4500 5000 2000 2500 3000 3500 4000 4500 5000
Station(ft) Station(ft)
Pre 8 Posl Conslmtllon MoOel Plart Dosl prqM plan 6R82 W6 P��Pos�Conslmclion MaEel Plan:pwt pmjM plan 4Q8l100fi
RS=68234 RS=67624
.I.j`--.07---� �.W—�
4835 �tY Legend 49a5 bb' L¢gend
7 4 74
..._.__.-___.. _.___•.__-_
EG 500 year EG 500 year
WS 500 year W$500 year
EG 700 year EG 100 year
4830 WS 700 year 4830 WS 700 year
---.,.__..... ____..-____..
EG 50 year EG 50 year
�� � WS50year WSSOyear
. _.._.-_ '"____.__......_ ............... .
EG 10 year EG 70 year
4825 WS 10 year 4825 WS 10 Year
� Grourid � Ground
o — � .
Bank S�a A k`,u�„„A'= Bank Sta
'a 'u
W w i
4820 �� 4820
4815 4815
4810 0810
1000 1500 2000 2500 3000 3500 4000 4500 5000 2000 3000 4000 5000 6000 7000
Station(fl) Station(ft)
�f Pre 8 Posl Conslmclion MoOel Plan'.pos�prolM 0�� d282006 Pre 8 Posl Canslrvclan MWeI Plan'.posl0�q�Olan 0282006
RS=66814 RS=65735
I.I �--.07-� C830 IryI.�.07-�
4835- 0'D Legend 74 Legend
74 -__._...._.....
__"_"'..Y._..
EG Sa0 ear EG 500 year
W S 5�0 year 4828 W S 500 year
EG 700 year EG 100 year
4830 W5100y¢B� 4826 WSi00y¢a� �
. ......«..___- "__-_'__-_.
EG 50 year EG 5o year
' 4824
WS50year .__........ WS50year
."._....__.-_____"
._"'""_•..___- _..."'..._"_..
EG 10 year EG io year
A825 •..•_____._..__.___ __" WSiOyear 4ffi2 W510year
c ' _ �_
-' Gmund ` Grauntl
a • C
A — Bank5fa m 4820 Bank5ta
W f {[ w 'Y' $. �-.�
W k _ -
♦: r,y. . ' �' .•.
_,,.
•" . d878 :..,µ �..
4820 M
, lt,.�. � .� .,
»t
687fi x
�
4815 4814
4812
4B7o d810
2000 2500 3000 3500 4000 4500 5000 550�6000 6500 2000 2500 3000 3500 4000 4500 5000 5500
Station(ft) Station(fi)
Pre 6 Posl ConsWcuon MOUeI Plan:post o�olecl o�an a2B2o06 Pre&Posl Conslmclion Model Plan:oasl projecl olan a(1fl2006
RS=64600 as=wrzo ma s a���merpoiaee wss-secuon ee�wren xs sasoo aiw xs c3 �
4830 IO � .07� Le9entl a826 IO�.07 � Le9end
74 74
-._.__a....._.. _._._....__._
EG 5�0 year EG 500 year
WS 500 year qgzq WS 500 year
_._...__...__. __-____....
EG 10a year EG 700 year
WS 100 year WS/00 year
_....._.__ . .. .
4825 EG 50 year 4822 Cnt 500 year
, _.........__....
W S 50 year EG 50 year
_ •_ _
�EGloyear QBZD WSSoyear
__�_ ...___.____.._-_-_"___._.___... -__-_T____-
W S 10 year EG 10 year
� �_ � . ... .. .. .
`. ........_................._..........._.. Gmund � Cnt 100 year
�
•
'm 4820 Bank5ta d818 WS10year
'w v
w w x s "'u- Crit 50 year
�
- 4816 t�,i�'�' Cnt i,year
� Grountl
1+ .{k 's�A� L
— r,ti al. ��9fF Ineff
4615 4814 t✓� �*°� BankSta
,, i
ti
4812
4810 4810
1000 1500 2000 2500 300� 3500 4000 4500 5000 1000 1500 2000 2500 3000 3500 4�00 4500
Station(8) Station(fl)
Pre 8 Posl ConsWtlion MOGeI Plan'.posl projml plan 02B2406 Pre 8 Posl Canslmtllon Moael Flan:posl prqecl Dlan 62&2006
RS=63640 as=s�i»s ms's+��mouaa w�unon eee.em zs wwa am xs sz
� 4824 l0'0�.07� Legend 4830 I0�.07� Legend
74 74
__._.".'.""__.. .._._._..__'_
EG 500 year EG 500 year
4qz2 WS 500 year WS 500 year
-____'_____ ""'"___"_""_"..
EG 1�o year EG 100 year
WS1o0year aeZ5 WSlooyear
482� Gnt 500 year EG 50 year
_____'___-_ �
_`_______ ___.___.__....._........... EG50year WS5oyear
4818 W$50 year Crit 500 year
* Cnt 700 year 4820 �EG 70 year
I
c _, . . � .
� .._._......_._........___......_...._. Cn�50year � W510year
� 481fi ; • . "_'"_'____-_ o _...._
'm = __ EG 10 year m Cnf 100 year
� _: . . >
y ' ,,.,, . �— y ..........__
w WS 10 year w Cri[50 year
;; ae.
' _ ._• � 4815 ..._.—..
487a - Crit 10 year r Crit 70 year
- Ground ��i�� . •
.::. ,sC.. Grountl
' .::.� � ..; �.:: �
I�ff Ineff
48i2 Bank SW Bank Sta
4810
4810 ,'3y`
4808 4805
1000 1500 2000 2500 3000 3500 4000 4500 1000 2000 3000 4000 5400 fi000
Station(R) Station(ft)
Pre S Posl Gonsimc�ion Mo0e1 Plan'.oosl o�q�p�an a28200fi Pre 8 Post Canslmcliw MOGeI Pian:00%�PM�dan drzBRoOfi
' R5=63n5Tnrscrosssenunassumepme'mancnannelEanMstalnns'were R5=59t95T�ewss5ectionazsumeEtlrt'mamcnan YbanFs�apons'were
d840 �'�07---� Le9end 4850 �.07�07-� Le9end
...___•___.. __".____.
EG 500 year EG 500 year
E835 W S 500 year W S 500 year
EG�00 year EG 100 year
WS 100 year 4840 WS 100 year
6830 _-_-_�...__._ __..........._..
EG 50 year EG 50 year
W S 50 year Cdt 500 yea�
4e25 Cnt 50o year WS 50 year
...._....-___- 4830 _.._....._.._..
EG 1 o year EG 10 year
'Y � W510 ear
� WS 70 year Y
� 6820 ... .. o _ _. . .
Cnt 100 year 'm Cnt 100 year
w Cnt 50 year w Crit 50 year
d815 ....�. :. ..
Crit 70 year 4820 Cnt 10 year
. a ..._._____ "'"""'""_" �
GrounO Grountl
___ � a
": �.�.' Ineff . .:.:.— ...:., Inefi
. 4910 BankSta �V '`�� Bank5ta
4810
� .
48U5
4800 ��—��T�T 4800
1000 2000 3�00 4000 5000 6000 1000 2000 3000 4000 5000 6000 7000
Station(ft) Sfa6on�fi)
� t Pre B Post GonsimcLon Moael Plan:post pmletl plan </18l100fi P2 8 Posl Conslrvtlion MoOel Plan:posl prol�Plan <2fl200fi
RS=58515 as=n�m rne noss-serno�ma�qee irom ine pre wm�n r zmvn uz
4830 �--07-�4�---O7--� L¢gend 4830 �.0��O7—+� LegenA
.....__•____ __...._.--..._..
EG 500 year EG 500 year
W S 500 year W S 500 year
..._______—
4825 EG 100 year 4825 EG 10o year
W S 10o year wS too year
____......._. _"_._—_'
EG 5o year EG 50 year
W S 5U year W S 50 year
4920 ...._ 4820 . . . .
Crit 50o year Cnt 500 year
_..__'.__ _ -__"'_'___
_
.._..__............._.... ___ EG t0 Year EG 10 year
^ " ""_" """_"
� WS70year K W510year
o . . .. ... `0 4815
- 4815 Crit 10o year � Cnt 10o year
� '__" ._. .. ......_. m "__J """"'""_ .... ..:Y...
w Crit 50 year w Crit 50 ea�
y. -
Cri1 10 year Crit 10 year
i �, .
4810 GrounG qg�p Ground
� Ineff
��� �„ y IneR
.
+��� Bank Sta Bank Sta
4905 d8�5
4800 4800
t000 2000 3000 4000 5000 6000 /000 2000 3000 4000 5000 60�0 7000
� Station(k) Station�R)
Pm 8 Posl Conslmc�ion Mo�el Plan:posl pq`M plan 4282006 Pre 8 Posl Cons�mtli0n MOG& PWn:O��p�ojM plan 4282006
as=ssassmsoo..�:enn�cm�qeo�mmme—o�emnau�onas.amnzoz RS=564I-00 BRBndgeatWCRJ13
�—.i---�.�—.07— "I �.��.P--.a�—�'I
4825 0 Le9end 4825 4 Le9end
___-_.-__ _._....,--__._
EG 500 year EG 500 year
WS 500 year WS 500 year
___._...._ ...
EG 100 year Cn�Sa0 year
...._...._'__
WS 100 year 4820 -f7 EG 100 year
.__._.,._..... ;12d : __-'-___..
EG 50 year �" �q EG 50 year
�
3�
WSSoyear ' . WS100year
. . _�� u ;.:..
. ._..... ... ' � '_ 2;�va+ ." �
. ............. ..__._' Cnt500year '_' s :�.:. WSSOYear
__.""___ ... 9 �'#:uti2t . :
.......�....._...
4815 ���� EG t0 year 4875 � ��� EG 70 year
� W 5 10 year � ,'_a;;� Cnt 100 year
c __... _ __"
o .. . o _____, , ... .
m — Cnt 100 year WS to year
_ �
> ...�.. � � ,.
m .< . y _'" . .... .
w Cn150 year w i Cnt 50 year
4810 --- Cnl 10 year 4810 Cnt 10 year
Graurb Grountl
a �
IneB IneH
• •
Bank Sta Bank Sla
4805 4805
4800 4600
1000 2000 3000 4000 5000 6000 7000 8000 1000 2000 3000 4000 5000 fi000 7000 8000
Station(ft) Station(tt)
� Pre 8 Post Con9mciron MoOel Plan:po510�o1��Glan d(282006 Pre 8 Pwl ConsWc4on Moael Plan:D��VrojM plan 6/282006
R5=56a00 BRBndgeatWCR13 RS=5629000UNTYROA�13(NEWBRIDGE)
oa ---m—� oa�—+�.�u�—�
6820 4 Le9end 4818 4 Le9entl
......_........_. "__""..._.....
EG 500 year EG 500 year
WS 500 year qg�s WS 500 year
', . �� r'� CrR 500 year Cnt 500 year
� i -_-__ ._.__
. . __._...._..._.
''----- � ` EG 1oo year _ __ __ ___. EG 100 year
0815 ': X�*�` 4814 -"--—"-----
� t` WS 10o yeer EG 50 year
t tn :"
.. __....----.
qF�i ,�'"y EG 50 year � WS 700 year
,�� ._... h�C��� ' . . .
�*j;r; WSSOyear 4872 __.._ ______ _. WSSOyear
_�. .____•—__ ....._"____
EG 10 year EG 10 year
^ � � �
� _.... "_""'"" ... .
c
Cnt 100 year � Crit 100 year
` o
; 4810 WS10year� A 4810 WSiOyear
m ' °
w Crit 5o year w Cnt 50 year
, ,
Gnt 10 year q808 - Cr�W year
G
Grauntl Gmund
a a
Ineff I�R
• •
4805 eank Sta 4806 - Bank Sta
6804
4600 4802
. 1000 2000 3000 4000 5000 6000 7000 8000 1000 2000 3000 4000 5000 6000 7000 8000
Station(ft) Stalion(ft)
Pre 8 aca�Consuutlion Moael Pian�.oosi prqM plan a28rz0o6 Pre 6 Past Consl�utlion Moael w,an:uos�o�l«+oia� a2fl2ao6
1 FS=55]]OT�ebpagrd0�kmlo�mMunlorN¢[msssMunwdslakenim RS=539]OLl�ebp�rapM1rnlo�malbnlo�Nscroc5-sMunwasla'�m/m
4820 � 0]--��.07� Le9entl 4820 �O7�.I�-.O�-� Le9end
tl
..__.-.._ __._...........
EG 500 year EG 50o year
W S 500 year W S 500 year
_._._._-.__ _.__..__..__
EG 100 year EG 100 year
4815 WS100year 4B15 WS100year
Cnt 500 year Crd 500 year
-_.__`__._ ._.._"'____-
� EG 50 year EG 50 year
_ ._... _... ._. _
. WS 50 year WS 50 year
'___-•------ ..._..._.._ . ..
4810 EG 10 year 4870 Crit 100 year
. __..._. __ ...... Y _ �
� '_,.:.__ . . . � ..
'— — ""' Crit 100 ear � ____ ______ Cnt W year
� _..
o . T o . �:. ..__._._._....
m WS 10 year ' ;�Yl�, i;'.�. EG 10 year
v ' 1 't t t s :e^�:
w Crit 50 year w '.= WS t0 year
, ` .,. . .,_,�esY .�_..
4805 Cnt 10 year 4B05 Crit 70 year
GromM Grountl
♦ 4
Ineff ��R
• •
Bank Sta Bank Sta
4800 4800
4795 . �•r^-Trf^� 4795 �
10�0 2�00 3000 4000 5000^6000 7000 e000 1000 2000 3000 4000 5000 6000 7000
Slation(ft) SWtiOn(fl)
��� Pre 8 Posl ConsW clim MOGN Flan�.pos�0��Wan i2B(L006 Pre B Posl Conslrvctim Model Plan:pos�p�qecl plan CR82006
0.5=5]1401�ew�rapMc�nlo�malon(o�NuvossscvunwaslaFenlm R5=523]OT�eb�/dp�c�lamq�unforN¢[mss[eMnwazlakenlm
4820 01�07—� Legend 4825 �.07��---07 Le9¢nd
._-__•.___.. "__-_•__.....
EG 500 yea� EG 500 year
W 5 500 year W S 500 year
EG 100 year 4020 EG 100 year
4875 �EG 50 year Crit 500 year
WS 100 year WS 100 year
_.__..-___
WS50year aets EG50year
EG 10 year year
WS 50
4810 WS 10 year Crilloo year
� Ground �' Crit 50 year
__...:...____.__......_ - c
° 4810
__._......_...
�� Bank Sta � EG 10 year
°1 w WS 10 year
w _'""....__._._ __...
4805 Cnt 10 year
,.H
G, �
:+�' 4805 '---'--. Ground
_ �
Bank Sta
4800
4800
4795 0795
j' 1000 2000 3000 4000 5000 6000 7000 8000 1000 2000 3000 4000 5000 6000 7000 6000
Station(fl) Station(ft)
CHECR-RAS Program: Ml7LTIPLE PROFILE Check
Project File: P:\3559\3559-ENG\CLOMR\CDMHINED CLOMR MODEL\STVRAIN.prj
Plan File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.p04
Geometry File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.g02
'�� v File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRASN.f02
rt File: P:\3559\3559-ENG\CLOMR\COMBffiED CLOMR MODEL\STVRAIN.mp -
°cted profiles: #10 year,#50 year,#100 year,#500 year
Date: 4/28/2006
Time: 11:33:26 AM
River Station WSEL p Total Top Wdth Act Vel Head Profile Number
'_"__________""_________"____"'______'_'__________.______"_"_____"_
St. Vrain River,EXISTING LAKES
71599 4824.08 1 768.18 0 3
71599 4824.72 1 777.92 0 q
71599 4825.46 1 798.1 0 1
71599 4828.97 1 919_02 0 2
71254 4824.06 1 546.79 0 3
71254 4824.72 1 553.61 0 4
71254 4825.46 1 561.44 0 1
71254 4828.97 1 777.05 0 2
70988 4824.07 1 434.56 0 3
70988 4824.72 82.43 439.73 0 4
70988 4825.45 403.74 442 0.01 1
70988 4828.94 4692.77 930.77 0.�2 2
70673 Inline Weir
70493 4824.06 1 430.33 0 3
70493 4824.71 82.43 433.78 0 4
7�493 4825.44 403.74 437.66 0.01 1
70493 4828.83 4692.77 1040.7� 0.02 2
69651 4824.05 1 941.29 D 3
69651 4824.65 182.7 945.02 0 4
69651 4825.36 645.94 949.39 0 1
69651 4828.77 6291.08 1267.9 0.02 2
69589 4824.02 1 542.11 0 3
69589 4824.56 182.7 544.81 0.01 4
69589 4825.27 645.94 548.33 0.01 1
64589 4828.73 6291.08 1465.43 0.01 2
'9 Inline Weir
_4 4819.8 1 523.51 0 3
00�14 4820.78 182.7 528.72 0 4
69314 9821.75 645.94 533.86 O.al 1
� fi9314 4826.14 6291.08 7498.67 0.01 2
68798 4819.79 1 517.31 0 3
68798 4820.74 182.7 527.69 0 q
6879B 4821.68 726.59 540.0� 0.01 1
68798 4826.06 6271.3 993.4 0.04 2
675�8 4819.78 1 371.77 0 3
67578 4820.57 182.7 389.81 0 4
67578 4821.37 726.59 408.06 0.02 1
67578 4825.48 8271.3 518.12 0.17 2
66768 4819.77 1 832 0 3
66�68 4820.46 182.7 845.2 0 4
66768 4821.19 726.59 860.65 0.01 1
66768 4825.07 11328.57 909.89 0.09 2
66055 4819.76 1 717.14 0 3
66055 4820.37 182.7 725.78 0 q
66055 4821.04 726.59 732.65 0.01 1
66055 4824.57 11328.57 �57.15 0.15 2
65190 4819.72 1 1081.26 0 3
65190 4820.16 182.7 1087.13 0 4
65190 4820.8 �26.59 1095.76 0.01 1
65190 4823.97 11328.57 1147.28 0.09 2
65125 Inline Weir
65050 4818.48 1 1080.96 0 3
65050 4819.95 182.7 1099.33 0 q
65050 4820.56 726.59 110�.28 0 1
65050 4823.5 11328.57 1145.54 0.01 2
St. Vrain River,I-25 to Junction
71770 4828.55 5950 254.95 0.52 3
71770 4831.57 12850 280.28 0.76 4
71770 4833.11 16700 298.77 0.84 1
- ��0 4841.06 41960 350.27 1.26 2
5 4828.28 5950 282.52 0.71 3
�5 4831.27 12850 294.9 0.98 9
71765 4832.83 16700 301.31 1.05 1
71765 4840.68 41960 333.74 1.54 2
71735 4828.04 5950 244.92 0.76 3
71735 4831.12 12850 296.57 1.02 4
71735 4832.7 16�00 323.22 1.08 1
71735 4840.69 41960 345 1.42 2
71701 4827.13 5950 185.36 1.1 3
71701 4828.84 12850 192.41 2.45 4
71701 4829.64 16700 195.69 3.16 1
71701 4835.04 41960 221.68 S.SB 2
71634 4827.56 5950 333.26 0.15 3
71634 4829.79 12850 380.05 0.39 4
71634 4830.64 16700 391.93 0.53 1
^'534 4834.11 41960 411 1.6� 2
]B 4827.56 5950 33?.61 G.13 3
�0B 4829.79 12850 � 390.24 0.36 4
,i608 4830.63 16700 403.51 0.5 1
71608 4834.08 41960 425 1.59 2
71465 Lateral Weirs
71168 4827.31 5950 523.24 0.17 3
71168 4829.41 12768.57 548.12 0.35 4
71168 4830.19 16297.26 560.07 0.45 1
71168 4833.4 37268.23 569.5 1.05 2
70728 4826.76 595� 716.94 0.3 3
70728 4828.65 12768.57 734.77 0.49 4
70728 4829.35 16297.26 936.61 0.58 1 �
70728 4832.27 37268.23 737 1.09 2
70584 Lateral weirs
70235 4826.25 5950 945.65 0.2 3
70235 4827.97 12668.3 971.55 0.29 4
70235 4828.61 16055.06 988.57 0.34 1
70235 4831.27 35669.92 999 0.61 2
69741 4825.5 5950 1148.13 0.28 3
69741 4827.16 12668.3 1225.55 0.32 4
69741 4827.76 16055.06 1242.63 0.35 1
69741 4830.17 35669.92 1261 0.56 2
69359 Lateral Weirs
69293 4824.44 5950 1158.08 0.46 3
69293 4826.21 12668.3 1428.37 0.41 4
69293 4826.84 15974.41 1439.99 0.4 1
69293 4829.2 33856.3 1446.5 0.5 2
68844 4823.43 5950 1229.5 0.5 3
68844 4825.2 12668.3 1577.42 0.48 4
68844 4825.79 15974.41 1611.36 0.5 1
68844 4828.19 33689.7 1721.91 0.53 2
68234 4822.41 5950 1028.69 0.4 3
68234 4824.04 12668.3 1657.33 0.46 4
68234 4824.64 15974.41 1�12.05 0.45 1
'4 4827.15 33689.7 1844.48 0.42 2
4 4821.39 5950 1387.82 0.37 3
r24 4822.99 12668.3 1A5.46 0.34 4
67624 4823.6 15974.41 1560.42 0.34 1
67624 4826.17 33689.7 1689.01 0.36 2
67487 Lateral Weirs
66814 4820.1 5950 1440.25 0.21 3
66814 4821.63 12668.3 1552.07 0.23 4
66814 4822.24 15974.41 1573.28 0.24 1
66814 4824.94 30632.43 2230.8 0.26 2
St. Vrain River,FULL RIVER
65735 4818.09 5950 1307.39 0.3 3
65735 4819.49 12850 1755.79 0.35 4
65735 4820.09 16700 1881.63 0.36 1
65735 4823.01 41960 2069.14 0.38 z
64600 4816.06 5950 1725.5'1 0.09 3
64600 4817.35 12850 1765.92 0.12 4
64600 4817.95 16700 1784.87 0.14 1
64600 4820.53 41960 2446.6 0.28 Z
64120 4815.28 5950 1639.21 0.1 3
64120 4816.47 12850 1790.27 0.15 4
64120 4817.12 16700 1804.81 0.16 1
64120 4819.53 41960 2507.01 0.24 2
63640 4813.6 5950 1511.41 0.32 3
63640 4815.49 12850 1730.06 0.15 4
63640 4816.29 16700 1740.36 0.15 1
63640 4818.59 41960 2843.9 0.21 2
63177.5 4812.97 5950 1328.48 0.04 3
63177.5 4814.92 12850 1737.67 0.07 4
63177.5 4815.79 16700 1758.46 0.08 1
63177.5 4818.26 41960 2866.11 0.07 �
62715 4812.66 5950 1179.64 0.05 3
62715 4814.53 12850 1731.4 0.07 4
62715 4815.37 16700 1768.03 0.09 1
6""�.5 4818_1 41960 3292.99 0.04 2
' 4811.4 5950 1185.6 0.14 3
5 4813.47 12850 1676.09 0.14 4
5..95 4814.36 16700 1704.12 0.15 1
59195 4817.42 41960 1788.22 ��Z� Z
SB515 4811.14 5950 1422.19 0.04 3
S8515 4613.17 12850 1429.77 0.07 4
58515 4814.05 16700 1431 0.08 1
58515 481'1.18 41960 2293.29 0.08 2
57401 4810.63 5950 1348.45 0.1 3
57401 4812.65 12850 1454 0.12 4
57401 4813.53 16700 7454 0.13 1
5�401 4816.76 41960 2186.84 0.13 2
56496 4809.68 5950 518 0.24 3
56496 4812.01 12850 1626.88 0.12 4
56496 4812.86 16700 1641.�5 0.09 1
-<496 4815.55 41960 2441 0.47 2
100 Hridge #1
290 4808.2 5950 199.48 0.4 3
$6290 4809.87 12850 199.84 1.14 4
56290 4610.5 16700 1139.49 1.46 1
%290 4813.2 41960 1751.41 1.12 2 '
55330 4807.16 5950 1692.43 0.13 3
55330 4808.48 12850 1889.74 0.18 4
55330 4809.05 16700 2635.85 0.2 1
55330 4811.5 41960 2937.29 0.28 2
53970 4805.76 5950 29�2.22 0.21 3
53970 4807.37 12850 3136.53 0.12 4
53970 480�.91 16700 3166.43 D.12 1
53970 4809.85 41960 3723.7 0.21 2
53240 4803.�1 5950 604.14 0.57 3
53240 4804.92 12850 803.46 1.05 4
53240 4805.38 16700 3060.55 1.09 1
53240 4807.42 41960 3318.62 0.67 2
52370 4800.97 5950 2662.88 0.22 3
52370 4801.97 12850 2710.7 0.2 4 �
52370 4802.4 16700 2727.47 0.2 1
52370 4804.61 41960 3116.32 0.27 2
_____'_____'_'__'___________'__'_"_"_'__'___'_"_____________'_'____"___'_________
Houndaxy Condition Check
_______'_________________
MP SW OS The name of the stream is St. Vrain River,I-25 to Junction
(Noimal S = 0.001) is specified as the upstream boundary
for profile loo year
MP SW 07 The name of the stream is St. Vrain River,I-25 to Junction
(Noxmal S = 0.001) is specified as the upstream boundaxy
for profile 500 year
�+7 01 The name of the sCream is St. Vrain River,I-25 to Junc[ion
' (Normal S = 0.0011 is specified as the upstream boundary
for profile 10 year
MP SW 01 The name of the stream is St. Vrain Aiver,I-25 to Junction
(Normal S = 0.001) is specified as the upstream boundary
for profile 50 year
MP SW 01 The name of the StYeam is S[. Vrairt RiveY,FULL RIVER
(Normal S = o.oD25) is specified as the downstream boundary
for profile 10o year
MP SW 01 The name of [he SCYeam is St. Viain RiveY,FULL AIVER
(Nomial S = 0.0025) is specified as the downstream boundary
for profile 500 year -
MP SW 01 The name of the s[ream is St. Vrain River,FULL RIVER
(Nozmal S = 0.0025) is �specified as the downstream boundary
foi profile 10 year
MP SW 01 The name of the stream is St. Vrain River,FULL RIVER
(Normal S = 0.0025) is specified as Che downstream boundary
for profile 50 year
Discharge Check
Water Surface Elevation Check
T� ��idth Check
—-END—-
i
CHECK-RAS Program: NT Check
Manning's n value and Transition Loss Coefficient Review
Project Fi1e: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.prj
Plan Fi1e: P:\3559\3559-ENG\CLOMR\COMHINED CLOMR MODEL\STVRAIN.p04
F�-metry File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.g02
File: P:\3559\3559-ENG\CLOMR\COM6INED CLOMR MODEL\STVRAIN.f02
.rt Fi1e: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.nt
Selected profiles: 100 year
0ate: 4/28/2006
Time: 11:33:46 AM
SECNO STRUCTURE NLOB NCHL NROB CNTR EXP
___'___'__"__'__'____'_'__'___'____'__'_'__"__"_'________'_'_'___'__'"_'___'_
St. Vrain River,EXISTING LAKES
71599 0.035 0.04 0.035 0.1 0.3
71254 0.035 0.04 0.035 0.3 0.5
70988 0.035 0.04 0.035 0.3 0.5
70673 Inline Weir-Up 0.035 0.04 0.035 0.3 0.5
70673 Inline Weir-Dn 0.035 �.04 0.035 0.3 0.5
70493 0.035 0.04 0.035 0.3 0.5
69651 0.035 0.04 0.035 0.3 0.5
69589 0.035 0.045 0.035 0.3 0.5
69499 Inline Weir-Up 0.035 0.045 0.035 0.3 0.5
69479 Inline Weir-Dn 0.035 0.045 0.035 0.3 0.5
69314 0.035 0.045 0.035 0.3 0.5
68798 0.035 0.04 0.035 0.3 0.5
67578 0.035 0.04 0.035 0.1 0.3
66768 0.035 0.04 0.035 0.1 0.3
66055 0.035 0.04 0.035 0.1 0.3
65190 0.035 0.045 0.035 0.3 0.5
65125 Inline Weir-Up 0.035 0.045 0.035 0.3 0.5
65125 Inline Weir-Dn 0.035 0.045 0.035 0.3 0.5
St. Vrain River,I-25 to JunCtion
65050 0.035 0.045 0.035 0.3 �.5
�1770 0.07 0.04 0.07 0.3 0.5
71765 D.09 0.04 0.07 0.3 0.5
71735 0.0� 0.04 0.0� 0.3 0.5 -
71701 0.07 0.04 0.07 0.3 0.5
. '4 0.07 0.04 0.07 0.3 0.5
8 0.07 0.04 0.07 0.3 0.5
:s65 Lateral Weirs
�1465 Inline Weir-Op 0.07 0.04 0.07 0.3 0.5
�1465 Lateral Weizs
71465 Inline Weir-Dn 0.07 0.04 0.07 0.3 0.5
71465 Lateral Weirs
71166 0.0� 0.04 �.07 0.3 0.5
70728 ----- 0.07 0.07 0.3 0.5
_'__' 0.04 "'__
70584 Lateral Weirs
705B4 InliRe Weir-Up ----- 0.04 0.07 0.3 0.5
70584 Lateral weirs
_'___ 0.07 '_'_'
�0SB4 Lateial WeiYs
70584 Inline Weir-Dn ---- 0.07 0.07 0.3 0.5
70584 Lateral Weirs
_'_"_ 0.04 '__'_
70584 Lateral Weirs
70235 0.07 0.04 0.07 0.3 0.5
69741 0.07 0.04 0.0� 0.3 D.5
69359 Lateral Weirs
69359 Inline Weir-Up 0.07 0.04 0.07 0.3 0.5
69359 Lateral Weirs
69359 Inline Weir-Dn 0.07 0.04 0.07 0.3 0.5
69359 Lateral Weirs
69293 0.0� 0.04 0.07 0.3 0.5
68844 0.07 0.�4 0.0� 0.1 0.3
66234 0.07 0.D4 0.07 0.1 0.3 �
67624 0.07 0.04 0.07 0.1 0.3
67487 Lateial Weirs
67487 Inline Weir-Up 0.07 0.04 0.07 0.1 0.3
6�48� Lateral Weirs
67487 Inline Weir-�n 0.07 0.04 0.07 0.1 0.3
F�'97 Latelal WeiYS
. rain River,FULL RIVER
�4 0.07 0.04 0.07 0.1 0.3
6�/35 0.07 0.04 0.07 0.1 0.3
64600 0.07 0.04 0.07 0.1 0.3
64120 0.07 0.04 0.07 0.3 0.5
63640 0.07 0.04 0.07 0.3 0.5
63177.5 0.07 0.04 0.0� 0.3 0.5
02715 0.07 0.04 0.07 p.3 0.5
59195 0.07 0.04 0.07 p,3 0.5
58515 0.07 0.04 0.07 0.3 0.5
57401 0.07 0.04 0.07 0.3 0.5
56496 �.1 0.04 0.07 0.3 0.5
56400 Bridge-Up 0.1 0.04 0.07 0.3 0.5 �
56400 Bridge-Dn 0.04 0.04 0.07 0.3 0.5
56290 0.04 0.04 0.07 0.3 0.5
.'"�30 0.07 0.04 0.07 0.3 0.5
�0 0.07 0.04 0.07 0.1 0.3
�40 0.07 0.04 0.07 0.1 0.3
�e370 0.07 0.04 0.07 0.1 0.3
---Summary of Statistics---
Minimum Maximum
Lef[ Overbank n Value: 0.035 0.1
Aight Overbank n Value: 0.035 0.09
Channel n Value: 0.04 o.07
Contraction Coefficient: 0.1 0.3
E�cpansion Coefficient: 0.3 0.5
ROUGHNESS COEFFICIENT CHECK
"""_'"_____'_____"""'""______'
RS: 71599
NT RC OS The left overbank n value of o.035 and the right overbank n value
of 0.035 are less than or equal to the channel n value of 0.04
The overbank n values sho�ld be reevaluated.
R5: 71254
NT RC OS The left overbank n value of 0.035 and the right overbank n value
of o.035 are less than or egual to the channel n value of 0.04
The overbank n values should 6e reevaluated.
RS: 70988
NT RC OS The left overbank n value of 0.035 and the right overbank n value
of 0.035 are less than or equal to the channel n value of 0.04
The overbank n values should be reevaluated.
AS: 70673
r ^ OS The left overbank n value of O.G35 and the right overbank n value
of 0.035 are less than or equal to the channel n value of 0.04
.� The overbank n values should be reevaluated.
FS: 70673
NT RC OS The left overbank n value of 0.035 and the right overbank n value
of 0.035 are less than or equal to the channel n value of 0.04
The overbank n values should be reevaluated.
RS: 70493
KT RC OS The left overbank n value o£ 0.o35 and [he right overbank n value
of 0.035 are less than or equal to the channel n value of 0.04
The overbank n values should be reevaluated.
RS: 69651
NT RC OS The left werbank n value of 0.035 and the right overbank n value
of 0.035 are less than or equal to the channel n value of 0.04
The overbank n values should be reevaluated.
RS: 69589
NT RC OS The left overbank n value of 0.035 and the right overbank n value
of 0.035 are less [han or equal to the channel n value of 0.045
The overbank n values should be reevaluated.
RS: 69479
NT RC OS The left overbank n value of 0.035 and the right overbank n value �
of 0.035 are less than or equal to the channel n value of 0.045
The overbank n values should be reevaluated.
RS: 69479
NT RC OS The left overbank n value of 0.035 and the right overbank n value
of 0.035 are less than or equal to the channel n value of 0.045
The overbank n values should be reevaluated.
R^ 69314
� t OS The left overbank n value of 0.035 and the right overbank n value
+ of 0.035 are less than or equal to the channel n value of O.D45
The overbank n values should be reevaluated.
RS: 68798
NT RC o5 The left overbank n value of 0.035 and the right overbank n value
of o.035 are less than or equal to the channel n value of 0.04
The overbank n values should be reevaluated.
R5: 69578
NT RC OS The left overbank n value of O.o35 and the right overbank n value
of 0.035 are less than or equal to the channel n value of 0.04
The overbank n values should be reevaluated.
RS: 66768
N� �C OS The left overbank n value of 0.035 and the right overbank n value
of 0.035 are less than or equal to the channel n value of 0.04 �
� The overbank n values should be reevaluated.
RS: 66055
NT RC OS The left overbank n value of 0.035 and the right overbank n value
of 0.035 are less than or equal to [he channel n value of 0.04
The overbank n values should be reevaluated.
RS: 65190
NT RC OS The left overbank ❑ value of 0.035 and [he right overbank n value
of 0.035 are less than or equal to the channel n value of 0.045
The overbank n values should be reevalua[ed.
RS: 65125
NT RC OS The left overbank n value of 0.035 and the right overbank n value
of 0.035 are less than or equal [o the channel n value of 0.045
The overbank n values should be reevaluated.
RS: 65125
NT AC 05 The left overbank n value of 0.035 and the right overbank n value
of o.035 are less Chan or equal to the channel n value of 0.045
The overbank n values should be reevaluated.
RS: 65050
NT RC OS The left overbank n value of 0.035 and the right overbank n value
of 0.035 are less than or equal to the channel n value of 0.045
The overbank n values should be reevaluated.
TRANSITION LOSS COEFFICIENT CHECK
RS: 68798
NT TL 02 Contraction and expan5ion loss CceEfiCients aYe 0.3 and 0.5
respectively. However, this cross section is not at the siruc[ure.
They should be equal to 0..1 and 0.3.
R�. '� 66055
NT TL 01 This is section 4
� Contraction and expansion loss coefficients are 0.1 and 0.3
- They should be equal to 0.3 and 0.5 respectively.
RS: 65050
NT TL 02 Contraction and e�cpansion loss coefficients are 0.3 and 0.5
respectively. However, this cross sec[ion is not at the structure.
They should be equal to 0.1 and 0.3.
R5: 71770
NT TL 02 Contraction and e�cpansion loss ccefficients are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 71765
NT TL 02 Contraction and expansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 71735
NT TL 02 Contraction and espansion loss coefficients are 0.3 and 0.5
respectively. However, this cross sec[ion is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 71701
NT TL 02 Contraction and eupansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal to 0.1 and �.3.
RS: 68234
NT TL 01 This is section 4 �
Contraction and expansion loss coefficien[s are 0.1 and 0.3
They should be equal to 0.3 and 0.5 respectively.
i
RS: 67624
NT TL 01 This is section 3
Contzaceion and expansion loss coefficients are 0.1 and 0.3
They should be equal to 0.3 and 0.5 respectively.
RS: 64120
NT TL 02 Contraction and expansion loss coefficien[s are 0.3 and 0.5
respectively. However, triis cross section is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 63640
NT TL 02 Contraction and expansion loss coefficients are 0.3 and 0.5 .
respectively. However, this cross section is not at the structure.
They should he equal to 0.1 and 0.3.
63177.5
N�r TL 02 Contraction and expansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 62715
NT TL 02 Contraction and expansion loss coefficients are 0.3 and 0.5
respectively- However, this cross section is not at the structure.
They should be equal to 0.1 and 0.3.
RS: 59195
NT TL 02 Contraction and expansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at the structure.
They should be equal to o.l and 0.3.
RS: 58515
NT TL 02 Contraction and expansion loss coefEicients are 0.3 and 0.5
respec[ively. However, this cross section is not at the structure.
They should be equal to o.l and o.3.
RS: 55330
NT TL 02 Contraction and erzpansion loss coefficients are 0.3 and 0.5
respectively. However, this cross section is not at [he struc[ure.
They should be equal to o.l and o.3.
ROUGFQJESS COEFFICIENT AT STRUCTURES
RS: 56400
NT RS 02 The channel n value of 0.04 for the upstream internal bridge opening
section is equal or larger than the channel n value of 0.04 at Section 3.
Usually, the channel n value of the bridge opening section is
less than the channel n value of Section 3.
The selection of the n valuels) should be reevaluated.
},_�-� %400
NT rzS 02 The channel n value of 0.04 for the downstream internal bridge opening
section is equal or larger than the chaxu�el n value of 0.04 a[ Section 2
Usually, the channel n value. of the bridge opening section is
less than the channel n value of Section 2.
The selection of the n valuels) should be reevaluated.
---ENA--
CHECK-RAS Program, XS Check
Cross Section Location and Alignment Review
ProjeCt File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.prj
r'�n File: P:\3559\3559-ENG\CLOMR\COMeINED CLOMR MODEL\STVRAIN.p04
ie[ry File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.g02
. � File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.f02
nyouTt File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.xs
Selected profiles: 100 year
Date: 4/28/2006
Time: 11:33:48 AM
SECNO Len Loh Len Chl Len Rob TopWdthAct Q Total Flow Code
"______'___'_'_"_'____"______'___'_'____'__'____'___'__"__'____________
St. Vrain River,EXISTING LAKES
71599 345 345 345 798.1 1 B
71254 266 266 266 561.44 1 B
70988 495 495 495 442 403.74 E,H
70673 Inline Weir-Up
70673 Inline weir-Dn
70493 542 542 542 437.66 403.74 B
69651 495 362 362 949.39 645.94 B
69589 275 275 275 548.33 645.94 D,B �
69479 Inline Weir-Up
69479 Inline Weir-Dn
69314 319 516 516 533.86 645.94 H
68798 683 1220 1112 540.0� 726.59 B
67578 684 810 815 408.08 726.59 H
66768 713 713 713 860.65 726.59 B
66055 1�75 865 216 732.65 726.59 B
65190 140 140 140 1095.76 726.59 H
65125 Inline Weir-Up
65125 Inline Weir-Dn
65050 0 0 0 1107.28 726.59
St. Vrain River,I-25 to Junction
71770 5 5 5 298.77 16700 B
71765 30 30 30 301.31 16700 H
71735 67 67 67 323.22 16700 H
' �. 34 34 34 195.69 16700 C,H
� 26 26 26 391.93 16700 B
376 440 483 403.51 16700
71465 Lateral Weirs
71168 3�6 440 483 560.0� 16297.26
70728 800.5 494 504.5 736.61 16297.26 B
70584 Lateral Weirs
70235 800.5 494 504.5 988.57 16055.06
69741 268.5 448 455 1242.63 16055.06
69359 Lateral Weirs
69293 268.5 449 455 1439.99 15974.41
6BB44 341.5 610 556 1611.36 15974.41 ❑,B
68234 341.5 610 556 1712.05 15974.41
67624 684 810 815 1560.42 15974.41 D,e
67487 Lateral Weirs
66814 1040 10�9 1040 15�3.28 159�4.41 ➢,B
St. Vrain River,FULL RIVER
65735 95 1135 1025 1881.63 16700 D
64600 393.5 480 405 1784.87 16700
64120 393.5 480 405 1804.81 16700
63640 490 462.5 415 1748.36 16700
63177.5 490 462.5 415 1758.46 16700
62715 100 3520 100 1768.03 16700 B
59195 530 680 520 1704.12 16700 D,e
58515 780 1114 480 1431 167�0 B
57401 830 905 790 1454 16700 H
56496 233 206 180 1641.75 16700 D,B
56400 Bridge kl-Up �
56400 Bridge #1-Dn
56290 770 960 1165 1139.49 16700 D
55330 890 1360 1550 2635.85 16700 D,8
53970 740 730 820 3166.43 16700 D,B
53240 820 870 840 3060.55 16700 D,B
52370 0 0 0 2727.47 16700 D,B
__ _______"_____________'_____________'_'_ "_"_
F cked obstruction XS SC OS
c tial depth XS SC 03
D-__Vided flow XS SC 01
E=cross section ex[ended XS SC 02
K=known water-surface XS SC 04
DISTANCE CNECK
XS .TT 01 Junction option is used.
For flood insurance study, this option should be used
if the tributary and main stream can have coincident peaks,
or it may be used for the stream without floodway.
It may also be used if the discharges at different [ime periods
are known from the raintall-runoff model.
' How to remove the junction is ezcplained under Help.
h5 .TT 03 The name of junc[ion is : 65735
The reach length at the most downstream cross section for the
'St. Vrain River and I-25 to Junction' is no[ equal to zero.
Please set the reach length equal to zero if juction can be considered.
SPACING CNECK
INEFFECTTVE FLOW CHECK
DISCNPS2GE CHECK
RS: 71599
XS DC 04 There is no flow on the left overbank at the downstream
cross section. There is no flow on [he right overbank at this section.
RS: 71168
XS DC 01 Discharge decreases in the downstream direction.
RS: 71168
XS DC 03 Discharge is different between Che upstream side and downstream
side of the s[ructure
P.S: 70235
XS DC 01 Discharge decreases in the downstream direction.
RS- 70235
C 03 Discharge is different between the upstream side and downstream
¢ side of the structure
R5: 69293
%S DC 01 Discharge decreases in the downstream dixection.
F.S: 69293
XS DC o3 Discharge is different between the upstream side and downstream
side of the structure
RS: 62715
XS DC 0S There is no flow on the right werbank at the downstream
cross section. There is no flow on the left overbank at this section.
XS DC 02 Constant dicharge used for ihe St. Vrain River,FULL RIVER
LOCATION CHECK
BOUNDARY CONDITION CHECK
'_""__"_______________
XS BC 02 The name of the stream is St. Vrain River,I-25 to Sunction
Normal S = o.00l is specified as the upstream boundary
for profile l0o year
XS BC 02 The name of the stream is St. Vrain River,FULL RIVER
Normal S = 0.0025 is specified as the downstream boundary
for profile 100 year
XS HC 03 Ma�cimum number of iterations is 0
It should not be less than 20.
. �L WEIRS CHECK
---END---
CHECK-RAS Program: Stncture Check
Project File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.prj
Plan Fi1e: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.p04
Geometry File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.g02
�" �w File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.f02
jrt File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.br -
kcted profiles: 10o year
�ate: 4/26/2006 �
Time: 11:33:49 AM
RS MaxLOChord MnTpRd EGEL WSEL MinChEl Structure
'___________'__'___'_______"_'_____________'__'_'___'__'____"__'___'_'_"_'_'
St. Vrain River,EXISTING LAKES
71599 4825.46 4825.46 4824
71254 4825.46 4825.46 4824
70988 4825.45 4825.45 4824
70673 4810 4825.45 4825.45 4824 Inline-Up
70673 4810 Znline-Dn
�0493 4825.44 4925.44 4824
69651 4825.37 4825.36 4824
69589 4825.26 4825.27 4924
694�9 4824 4825.28 4825.27 4824 Znline-Up
69479 4824 Inline-Dn �
69314 4821.75 4821.75 4819.7
68798 4821.68 4821.68 4819.7
67578 4821.39 4821.37 4819.7
66768 4821.19 48z1.19 4819.7
66055 4821.05 4821.04 4819.�
65190 4620.8 4820.8 4819.�
65125 4819.7 4820.8 4820.8 4819.7 Inline-Op
65125 4819.7 Inline-�n
65050 4820.56 4820.56 4812
St. Vrain River,i-25 to Junction
71770 4833.96 4833.11 4822
71765 4833.88 4832.83 4822.7
71735 4833.78 4832.7 4822-34
71701 4832.79 4929.64 4821.95
��634 4831.18 4830.64 4819.15
�8 4831.13 4830.63 4818.1
Pg 4830.64 4830.19 4818.2
:i"�65 Lateral Weirs
�p7Z8 4829.93 4829.35 4818.25
70235 4828.95 4028.61 4817.4
� 70584 Lateral Weirs
69741 4828.11 4827.76 4816.45
69293 4027.25 4826.84 4815.6
69359 Lateral Weirs
68844 4826.29 4825.79 4814.75
68234 4825.09 4824.64 4814
67624 4823.94 4823.6 4613.45
66814 4822.47 4822.24 4812.85
67487 Lateral Weirs
:;t. Vlain RiveY,FULL RIVER �
65735 4820.45 4820.09 4811.95
64600 4818.09 4817.95 4810.85
64120 4817.28 4817.12 4810.2
63640 4816.44 4816.29 4809.55
63177.5 4815.06 4815.79 4807.67
62715 4815.46 4815.37 4805.8
59195 4814.5 4814.36 4803.33
58515 4814.11 4814.05 4803.85
57401 4813.66 4813.53 4803
56496 4813.03 4812.86 4802.55
56400 4814.4 4817 4812.63 4811.56 4802.55 Hridge #1-Up
56400 4814.4 4811 4812.28 4811.5 4802.15 Hsidge #1-Dn
56290 4871.96 4810.5 4802.15
55330 4809.25 4809.05 4799.75
53970 4808.03 4807.91 4798.15
53240 4806.47 4605.38 4798.15
52370 4802.6 4802.4 9795.55
"____""""'""'___'""_______"'
.�/REACH: St. Vrain River, EXISTING LAKES
RIVER STATION: 70673
TYPE OF STRUCTURE: Inline
____"_____________'____________'__'_________'_"_""'_'_________"'_____'_'_'_'
DeSCliptioR:
Distance from Upstream XS: 6�
Deck/Roadway Width: 103
Weir CoefficienL: Z.63
Maximvm allowa6le submeraence for weir flow: 0.95
Elevation at which weir Elow begins: 0
Weir crest shape: Broad Crested
__________________________________"________________'_______'____________"'___
°" River Length WSEL Surch. EGEL TopWidth
Station Channel Actual .
�_____________________________""_______________'_________'________"'____
x 71254 266.00 4825.46 4825.46 561.44
3 �0988 495.00 4825.45 4825.45 442
70673 103.00 4825.45 4825.45 0 Inline Weir-Up
706�3 67.00 0 Inline Weir-Dn
2 70493 542.00 4825.44 4825.44 437.66
1 69651 362.00 4825.36 4825.37 949.39
"__"_'_'__'_"'_____'__'___'_____"_'__'__'_'____'____'___________'""'_""__
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta R Elev
"'_"__'___'__'__'__'____'___'______'___"____'___"____"____""_'__'_'__'____
490 1680 4827
'_'____'_____'________'____________'___'__"'_____'_______'_'""'_'____'"'__"_
INLINE WEIR:
Inline Weir Gate:
Dist IwD: 67 Height: 0 width 0 Invert: 0
Gate Coeff: 0 GateType: TrunE�cp 0 OpenErzp: 0
HeadE�cp: 0 TrunHght: 0 weir Coeff: 0 weirShape:
Ga[eNumber: 0
LCntStaU: 0 RCntStaU: 0 LCntStaD 0 RCntStaD 0
MinTopRd: 4824.01
Gate ID Gate q Open Gate Q Q WeiY Q Total Flow Type
Open Hght
"_'_"'___"__"______'_"___________'__"_____'_____'___'_"'____"
4824 2 4824.11 403.74 403.74 Weir FlOw
' ____________________'____'___________________'___'_'___'""'"'_"'"'_'__'__'
�
Opening Type StagStaL StagStaR EncStaL EncStaR LIfStaS RIfStaS
Inline -88 -86 U
0 -9999 �
____'_"_'____'______________________'_______________________________'___"__'_
LAbutSt RAbutSt LMn1pRd RMnTpAd MnTpRd MxI.oCd
_______'_'______'___""_'_______________"'"_""'___'________________'__'__'_'__
0.00 0.00 4810.00 4810.00 4810.00 0.00 U
0.00 0.00 4810.00 4810.00 4810.00 0.00 �
GEOMETRIC CHECK
RS: 70673
ST GD 03 The end station of 2732 from upstream road/weir data
is greater than the end station of 2112 from upstream intemal
section/section 3.
The high chord elevation of 4830 for the end road/weir station is
greater than the ground elevation of 4825 for the end ground etation.
The EGEL at section 3 of 4825.45 is greater than the ground elevation.
The road/weir data should be included in the ground data
TYPE OF FLOW CHECK
RS: 70673
Iw TF 01 Type of flow is Weir Flow because,
1. Gate Flow discharge is equal to 4824.11
2. Weir Flow discharge is equal to 403.74
DISTANCE CHECK
1 �CTIVE FLOW CHECK
_______'__'___'___'_"'
RS: 69651 This is Section 1
ST IF 07 Ineffective flow option was considered at this section.
However, it should be a fully expanded cross section.
Ineffective flow stations and eLevations should be cleared from
this section, unless the ares beyond the ineffective flow sta[ions
are not within the flow path of the stream.
This message should be ignored if this section is Section 3 of the downstream
structure.
_______________________________________________________'_______________________
o"'ER/REACH: St. Vrain River, EXISTING LAKES �
R STATION: 69479
1 OF STAUCTURE: Inline
"___'______""_'____'_____'__'____"_'______'_______'_____'_"___'___'__'___'
Description: This inline weir models the proposed snillway bet
Distance from Upstream XS: 143
Deck/Roadway width: 31
Weir Coefficient: 2.63
Maximum allowable submergence for weir f-iow: 0.95
Elevation at which weir flow begins: 0
Weir crest shape: Broad Crested
SeC RiveY Length WSEL SuYCh. EGEL TopWidth
Station Channel Actual
___"_' ' _"'_'__"______
4 69651 362.00 4825.36 4825.37 949.39
3 69589 275.00 4825.27 4825.28 548.33
69479 31.00 4825.27 4825.28 0 Inline weir-Up
69479 193.00 0 Inline Weir-Dn
2 69314 516.00 4821.75 4821.75 533.86
1 68798 1220.00 4821.68 4821.68 540.07
Ineffective Flow, Section 3 Ineffective Flow, Sectio� 2
Sta L Sta R Elev Sta L S[a R Elev
INLINE WEIR:
Inline weir Gace:
Dist IwD: 143 Height: 0 Width 0 Invert: 0
' CcePf: 0 Gatelype: TrunExp o openExp: 0
:sp: 0 TrunHght: C Weir Cceff: 0 WeirShape:
(,�.:2Number: 0
LCntStaU: 0 RCntStaU: a LCntStaD 0 RCntStaD 0
MinTopRd: 4824.01
Gate ID Gate # Open Gate 4 Q Weir 'Q Total Flow lype
Open Hght
4624 2 4824.16 645 94 645.94 Weir Flow
0[�eninJ Type StagStaL StagStaR EnCStaL EnCStaR LIfStaS RIfStaS
_ "_'______"_____'_____ '__'_______'__'_____'
Inline -88 -88 U
-68 -88 D
_'__'__"_________"______'__"_'_____"_'____""
LAbutSt RAbutSt LMn1pRd RMn1pRd MnTpRd MxI,oCd
_'___'_'__'_____"_'"'_____"""'_' ____'_'_'__________' ______
0.00 0.00 4824.00 4824.00 4824.00 0.00 U
0.00 0.00 4824.00 4824.00 4824.00 0.00 D
GEOMETRIC CHECK
'_"____"______'
RS: 69479
ST GD 03 The starting station of 445 from upstream zoad/weir data
is greater than the starting station of 275 from upstream internal
section/ secion 3.
The high chord elevation of 4855 for the starting road/weir station is
greater than the ground elevation of 4842 for the same ground station.
The road/weir profile may need to be extended.
TYPE OF FLOW CHECK
___________'___'_'
RS: 69479
IW TF 01 Type of flow is Weir Flow because,
1. Gate Flow discharge is equal to 4824.16
2. Weir Flow discharge is equal to 645.94
�ISTANCE CHECK
INEFFECTIVE FLOW CHECK
'__'_'__"_"___'____'_
69651 This is Section 4
IF 07 Ineffective flow option was considered at this section.
However, it should be a fully e�cpanded cross section.
Ineffective flow stations and elevations should be cleared from
this section, unless the areas beyond the ineffective flow stations
are not wiGhin the flow path of the stream.
This message should be ignored if this section is Section 2 of
the upstream sCructure.
'________________________'_____________________________________________________
RIVER/REACH: St. Vrain River, EXISTING LAKES
RIVER STATION: 65125
TYPE OF STRUCTURE: Inline
_______""___'___'_'_"_"___'___'_'_'____'___'__'___'_'______'_____'_____'__'
Description:
Distance from� Upstream XS: 65
0eck/Roadway Width: 25
Weir Coefficient: 2.63
Maximum allowable submergence for weir flow: 0.95
Elevation aC which weir flow begins: 0
Weir crest shape: Hroad Crested
Sec River Length WSEL Surch. EGEL Topwidth
Station Channel Actual
___________"__'__'__'_'_____'___'_'____"_____'__"___'____'_'___'___'__'___'__
4 66055 865.00 4821.04 4821.05 732.65
3 65190 140.00 4820.8 4820.8 1095.76
65125 25.00 4820.8 4820.B 0 Inline Weir-Up
65125 65.00 0 Inline Weir-Dn
2 65050 0.00 4920.56 4820.56 1107.26
__'________'_'_____"'_'__'__'____'_'________________'____"___'___'____'_'_""
-� Ineffec[ive Flow, Section 3 ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta R Elev
__'_""'__'__'________'_'____'__"'_____'__'_"____"_"________'___'_____'__'_
INLINE WESR:
Inline Weir Gate:
Dist IwD: 65 Height: 0 Width o Invert: 0
Gate Coeff: 0 GateType: TrunF�cp o OpenE�cp: 0
HeadExp: 0 TnnHght: o Weir Coef£: o Weirshape:
GateNUmbeY: 0
LCntStaU: 0 RCntStaU: 0 LCntStaD 0 RCntStaD 0
____"'___"__'"'__"________'_'__"_______'______________""_________________
MinTopRd: 4819.71 �
Gate ID Gate p Open Gate Q Q Weir Q Total Flow Type
Open Hght
_"_'___'___'_""_"'____'_'_____'_'_____'_'___________________________________
0 1 4819.8 726.59 726.59 Weir Flow
Opening Type StagStaL StagStaR EncStaL Enc5taR LIfStaS RIfSta5
_"_____'_"__""__"'_'______'____'_'_"_'_"_'_""_'"'__"_'"'""_'___"'__"
Inline -88 -86 U
-88 -88 D
'___'_______________________________________________________________"______'__ .
LAbutSt RAbutSt LMn1pRd RMn1pRd MnTpRd MxLoCd
"______"""'_____"___'_____""'__'____________'_____________'_'_______________
0.00 0.00 4819.70 4819.70 4819.70 0.00 U
0.00 0.00 4819.70 4819.70 4819.70 0.00 D
GEV��IETRIC CHECK
TYPE OF FLOW CHECK
RS: 65125
Iw TF 01 Type of flow is weir Flow because,
1. Gate Flow discharge is equal to 4819.8
2. Weir Flow discharge is equal to 726.59
DISTANCE CHECK
FFECTIVE FLOW CHECK
�'____'"'______"____
_____'___""_____"__"______'_'____'__"'__'___"__"'_"_'_________'___'___'
RIVER/REACN: St. Vrain RiveY, I-25 to SunC[iOn
RIVER STATION: 71465
TYPE OF STRUCTURE: inlir,e �
___________'__'___'_____'____'__'_'__'___'__"'__'___'____'___________'________
Sec River Length w5EL Surch. EGEL Topwidth
Station Channel Actual
_'__"'______'________'_"__"_____"'______'___'____'___"'____"'____'__'__'_
4 71634 26.00 4830.64 4831.18 391.93
3 71608 44�.00 4830.63 �4831.13 403.51
2 71168 440.00 4830.19 4830.64 560.07
1 70728 494.00 4829.35 4829.93 736.61
_____'____'_"'__'____"_'_____'___'_____________'________'__"____'______'_'__
IneffECtive Flow, SeCtion 3 IneffeC[iVe Flow, SECtion 2
Sta L Sta R Elev Sta L Sta R Elev
_________"'_______'_'____'"_____"'_'_'__"_"'________
1 2283 4312.1 4843 2563 4564 4843
_"_________'_______"__'_____'_'_'____'______'_'______"__'_"_________'_'__"
GEOMETRIC CHECK
_"______'_____'_
RS: 71465
ST GD 02 The end station of 1821 from upstream road/weir data
is less than the s[arting station of 4312.1 from upstream internal
section/section 3.
The road and ground profiles are not aligned properly.
The road and ground data should 6e adjusted.
:YPE OF FLOW CHECK
"_"__'___'"'_'__
DISTANCE CHECK
INEFFECTIVE FLOW CHECK
_____"'__"_'"_"_____"'_"_'__"'______'__'___'__"__'____'__'_'____________'___'
P.IVER/REACR: St. Vrain River, I-25 to Junction
RIVER STATION: 70584
TYPE OF STRUCTURE: Znline
_____"___"'"'_______'__"___'__________'__'_________________'___________'_'__
Sec River Length WSEL Surch. EGEL TopWidth
Station Channel Actual
""" """'
4 71168 440.00 4830.19 4830.64 560.07
3 70728 494.00 4829.35 4829.93 736.61
2 70235 494.00 4828.61 4828.95 988.57
1 69741 448.00 48�7.76 4828.11 1242.63
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta R Elev
_____'__________'_'_"_'____'_"___'___"__'____"'___'__________'_________""
1 2866 4932 4843 3068 4469 4843
C PRIC CHECK
RS: 70584
ST G� 03 The starting station of 2755 from upstream road/weir data
is greater than the starting station of 2129 Prom upstream internal
section/ secion 3.
The high chord elevation of 983o for the starting road/weir statioa is
grea[er than the ground elevation of 482e.e14 Eor the same 9round station.
The road/weir profile may need to be extended.
RS: 70584
ST GD 03 The end station of 2845 from upstream road/weir data
is less than the end station of 4932 from upstream internal
section/section 3.
The high chord elevation of 4B30 for the end road/weir station is
' greater than the ground elevation of 4823.128 for the same ground station.
The road/weir profile may need to be extended.
TYPE OF FLOW CHECK
_"'___"_'_"_"'
DISTANCE CHECK .
_'"___'_"_'_'_
INEFFECTIVE FLOW CHECK
___'___"'___'________'
"___"_'____'__'__'_______'_'__'__'_' " '
RIVEA/REACH: St. Vrain River, I-25 to Junction
RIVER STATION: 69359
TYPE 0F STRUCTURE: Inline
_'__________'__'_'_____"_'_______'____'.___________'________"_______'_'___'__'_
Sec River Length WSEL Surch. EGEL TopWidth
Station Channel Actual
___________________________' "________________________________"__
4 70235 494.00 4828.61 4828.95 988.57
3 69741 448.00 4827.76 4828.11 1242.63
2 69293 449.00 4826.84 4827.25 1439.99
1 68B44 610.00 4825 J9 4826.29 1611.36
'___'"____________________'___'_______"_________'_____'_____"________________
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta A Elev
_'_"___'_______'___'_"_____'__"'__'_'_'_____"_"_""_'_____"'___'________
� 327� 5227.1 4843 3447 4777 4843
_"__'_'_"__'_'___'_'_'__'____________'__"_"__"_______
J
GEOMETRIC CHECK
R5: 69359
ST GD 03 The starting station of 3710 from upstream road/weir data
is greater than the starting station of 2009 frmn upstream internal
section/ secion 3.
The high chord elevation of 4827.5 for the starting road/weir station is
greater than the ground elevation of 4825.45 for the same ground station.
The road/weir profile may need to be extended.
RS: 69359
ST GD 03 The end station of 3890 from upstream road/weir data
is less than the end station of 5227.7 from upstream internal
section/section 3.
The high chord elevation of 4027.5 for the end road/weir station is
greater than the ground elevation of 4826.65 for the same ground atation.
The road/weir profile may need to be extended.
TYPE OF FLOW CHECK
DISTANCE CHECK
______""""'_
INEFFECTIVE FLOW CHECK
"__"""'"_'"_'"""______"'"'""""_"_'"'""'"_""_"_'__'________'___""'_
RIVER/REACH: St. Vrain River, I-25 to Junction
RIVER STATION: 67487
7 OF STRUCTURE: Inline
Sec River Length WSEL Surch. EGEL TopWidth
Station Channel Actual �
'_____________'_____'"___"_____'_"__'___"_____'_'_'___"____""____'__'__"_'_'
4 68234 610.�0 4824.64 4825.09 1712.�5
3 67624 810.00 4823.6 4823.94 1560.42
Z 66814 10'79.00 4822.24 4822.47 1573.28
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R Elev Sta L Sta R Elev
GEOMETRIC CHECK
TYPE OF FLOW CHECK
___"'___'__"____
DISTANCE CHECK
__________""_
INEFFECTIVE FLOW CHECK
"____'"_'___'____"_____'__'_____ __"'___ '_' _
RIVER/REACH: S[. Vrain River, FULL RIVER
RIVER STATION: 56400
TYPE OF STRUCTURE: Bridge
______"_"""" ' '_'_____'___'_'__g__'_"_"_"_____'_____ '
Description: BLid e at WCR13
Distance from Upstream XS: 112
Deck/Roadway Width: 65
Weir Coefficient: Z��
Maximum allowable submergence for weiz flow: 0.95
Elevation at which weir flow begins: 4811
Weir crest shape: Broad Crested
Sec River Length WSEL Surch. EGEL TopWidth
Station Channel Actual
"____ _____'___________'_______
4 57401 905.00 4813.53 4613.66 1454
56996 206.00 4812.86 4813.03 1641.75
56400 65.Oa 4811.56 4812.63 190.39 Bridge kl-Up .
56400 29.00 48ll-5 4812.28 190.4 Bridge #1-Dn
2 56290 960.00 4810.5 4811.96 1139.49
1 55330 1360.00 4809.05 4809.25 2635.85
Ineffective Flow, Section 3 Ineffective Flow, Section 2
Sta L Sta R ElEv Sta L Sta R EleV
'1-------1280"���-_3203-"-'-4811'--" ---_3665'�--_-912"/"--��4819
2 3721 "7132 4817
2RIDGE:
B:id9e Name: Bridge kl
LDWF1owMethod: Highest Energy Answer
Momentum Cd: 2 �
HighFlowMethod: Pressure and Weir flow
SluiceGate Cd: 0 Submerged Cd: 0.8006408
'___'__"_'____________'"_'_'___'______'
Additional Bridge Parame[ers
Add Friction component to Momentum
Do not add weight component to Momentum -
Class B flow critical depth computations use critical�depth
inside the bridge at the upstream end
Criteria to check Eor pressure flow = Upstream energy grade line
MaxLowChord: 4874.4 MinTopRd: 4811.01 MinElPrs: 4814.4
c. .ng Type SeagStai. StagStaR ElicStaL EncStaR LIfStaS RIfStas
_'_____'___ ___'_____'___'__'__'_'___'_'__'__"'____'___'______'__
9ridge U
D
LA6utSt RP.butSt LMnTpRd RMnTpRd Mn1pRd NucLOCd
_'_"'_____________________'__'__'______"_"__'___'___'__'___'___'_'________'_
Bridge #1 3465.24 3664.56 48ll.00 4817.00 4811.00 4814.40 O
3465.52 3664.58 4811.00 4817.00 4811.00 4814.40 D
Name Q Tota1. Q Struc Q Weir Selected Method Flow Type
'_______________'_________________'_____'___________________'__'_______'_______
6zidge ql 16700 12373.06 4326.94 Enezgy/Weir Low and Weir Flow
___________""______'__'__""____'__'_____'______'_______'_____'_________'___
�TRIC CHECK �
TYPE OF FLOW CHECY,
_'__'___'__"'___'
RS: 5640o This is Bridge ql
BR LW 01 Type of flow is low and weir flow because,
1. EGEL 3 of 4813.03 is greater than MinTopRd of 4811.01.
2. EGEL 3 of 4813.03 is less than MxLOCdU of 4814.40.
�ISTANCE CHECK
__'__'_____'___
INEFFECTIVE FLOW CHECK
RS: 57401 This is SeCtion 4
ST IF 07 Ineffective flow option was considered at this section.
However, it should be a fully expanded cross section.
Ineffective flow stations and elevations should be cleared from
this section, unless the areas 6eyond the ineffective flow stations
are not within the flow path of the stream.
This message should be ignored if this section is Section 2 of
the upstream structure. .
RS: 55330 This is Section 1
ST IF 07 Ineffective flow option was considered at this section.
However, it should be a fully e�cpanded cross section.
Ineffective flow stations and elevations should be cleared from
this secGion, unless the ares beyond the ineffective flow stations
are not within the flow path of the stream.
This message should be ignored if this section is Section 3 of the downstream
structure.
rJD
r
STVRAIN.rep
.� NEC-RAS Version 3.1.3 May 2005
U.S. Army Corp of Engineers
Hydrologic Engineering Center
609 Second Street
Davis, California
X X %XXXXX XXXX XXXX XX XXXX
x x x x x x x x x x
x x x x x x x x x
xxxxxxx xxxx x xxx xxxx xxxxxx xxxx
x x x x x x x x x
x x x x x x x x x x
x x xxxxxx xxxx x x x x xxxxx
...............>..._.....,................,..._.........+....._....»....<..,.,,.«
PROJECT DATA
Project Title: Pre 5 Post Construction Model
Project File : STVRAIN.prj
RUn Date and Time: 4/28/2006 11:30:56 AM
Project in English units
ProjeCt DesCiiption:
St. Vrain Rivei Pre and Post Construction Model
This model was originally a
copy of an Army Corps of Engineers Study done on the St. vrain River.
Modifications have been made to the model to account for recent bridge and topo
changes.
LOCATION: WELD COUNTY,
.; COLORADO
STREAM:
SAINT VRAIN CREEK
DESCRIPTION: HEC-RAS INPUT FILE
a.+....+.+.t.....::::«:.«...x...x....xx.....+x...x..x+.x+.«..xx....++........++.
PLAN OATA
Plan Title: post project plan
Plan File : p:\3559\3559-ENG\CLOMR\COMSINEO CLOMR MO➢EL\STVftAIN.p02
Geometry Title: Post Project Geometry
Geometry File : p:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.g03
Flow Ti[le : Project Flow Data
Flow File : p:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVAAIN.f02
Plan Description:
This model presents the proposed grading around the lakes for the St. Vrain
Lakes Development. The high water elevation of the existing ponds south of the
St. Vrain River were surveyed, however, much of the topo on the south of the
St. Vrain River was taken from the original Army Corps of Engineers study from
1977.
Plan Summary Informa[ion:
Number of: Czoss Sections = 43 Multiple Openings = 0
Culveits = 0 Inline StruCtures = 3
Bridges = 1 Lateral Structures = 4
Page 1
STVRAIN.rep �
� Compu[ational Information
Water surface calculation tolerance = 0.01
Critical depth calculation [olerance = 0.01
Maximum number of iterations = 40
Maximum difference tolerance = 0.3
Flow tolerance Eactor = 0.001
Compu[ation Options
Critical depth computed only where necessary
Conveyance Calculation Method: AC breaks in n values only
Friction Slope Method: Average Conveyance
Computational Flow Regime: Subcritical Flow
*x+�+a�r+.xxxx++..::.:�xr+�rr.:...x«xx+t::.�xwxxw+x+:.+:.:at«�+�w.x�+;+t+.+*i..k
FLOW DATA
Flow Title: Project Flow Data
Flow File : p:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.f02
Flow Data (cfs)
xx �..+..+...xxx.:.:..a...xw+..+........«..a....+.:....:.+.+..+...xx«.+..+...:..kx..:..+.++..xx:.....«...
'xRiver Aeach RS * 100 year 500 year 10 year 50
year *
* St. Vrain River I-25 to Junction"/17"]0 * 16"]00 41960 5950
12850 '
` SL Vrain River EXISTING LAKES "/1599 * 1 1 1
1 •
' St. Vrain RiveT FULL AIVEA 65735 � 16700 41960 5950
12850 '
•«i�e�t:xr�..w.++:.a�+r«t.x+.w.+++tx+rr:.a+t�+r.wx.:�:+.Frix��rrxx.�+ta*�*+:»R�:rw.x.+t+��:.i:�ixa.r:x.x�.:r:
eoundary Conditions
.. :...+:....xx:«:.:::...x...,..:.x....x.:..+...«.:.......r+...xx=x:.+...+++.......:..:..+........a.+..+...
* River Reach Piofile * Upstream Downs[ream '
x:+s+rt�.w.��xRx.:i+�r+++..++�tx..wr.:�♦t�x�w.x:.:�...wx+.r:.:.r��:tF+kw�r:.�:x.:a«a�+xx++.xr»w�x�xx.xxwwx+
� * St. Vrain River I-25 to .Tunctionlo0 year ` Normal S = 0.001 *
" SL Vzain River I-25 to Junction500 yeai ' Normal S = 0.001 '
* SL Vzain River I-25 to Sunctionl0 year * Normal S = 0.001 '
' St. Vtain River I-25 to Junction50 year ' Normal S = 0.001 *
* St. Vrain Rivei FIILL RIVER 100 year ' Normal S = 0.0025 *
* St. Vrain River PIILL RIVER 500 year * Normal S = 0.0025 "
* St. Vtain Rivez FULL RIVER 10 year * Normal S - 0.0025 3
• St. Vrain River FOLL RIVER 50 year * Normal S = 0_0025 •
k.:.+k..++�.+++::,=:�x:..�.k�+.+.:=...wr,..t:�t.wt«t+,:x.:::.+++++waw.�.:::�.itr�+++x+r+w..x+.+:......x:xr+.
.�:::�:�+a��:+t.i...+>.+::.::.x+.+...+,..a..r:x.«:..:+.:.:+.w+«+::::::.t.a�.a.++.*+
GEOMETRY DATA
Geometry Title: Post Pioject Geometiy
Geometry File : p:\3559\3559-ENG\CLOMR\COMBINED CLOMA MODEL\STVRAIN.g03
Reach Connection Table
if:-.liYif'R'.!#1:Fk'.lfi{Si#hi#�.lR*'.!-.!'.lf1#i##1i:#a4#it1Yil4MvlFh£k4Y�iiiiFt#i+*k*k#kR*k*�*#1S
* River Reach * Upstream Boundary * Downstream Boundary •
Y4kf�fYi#4iYYI�.l111:fe1:T#IfkYi4t+M4'.lRff144ifRtlk�.l1#FYfi4ii*W*t1:'.!A'F*###+1?!Y#f4*i{h*1:+
* St. Vrain Rivex EXISTING LAKES ` * 65735 *
* St. Vrain River I-25 to .7unction * * 65735 *
� St. Vrain Rivez FULL RIVER * 65735 * *
iA+YMY1MtR£Yiit+k4FiY1YYY+F1'.11t*tiiY#W1:Fh#irt*ifFiif+Mtff:t+tttfkY4+i4'ki11fl1Rt�YilF
SI7NCTION INFORMATION
Name: 65735
�escription:
Energy computation Method
Length across Junc[ion Tributary
River ReaCh HiveY ReaCh Lenyth Angle
Page 2
STVRAIN.rep
St. Vrain Aiver I-25 to Junction to St. Vrain River FULL RIVER 965
? St. Vrain River EXISTING LAKES to St. Vrain River FULL RIVER 30
CROSS SECTION
RIVER: St. Vrain River
REACH: EXISTING LAKES RS: 71599
INPUT
Description: The water will pond to 4824 in the lakes upstream of the proposed
spillway at cross-section 68595 as this is the proposed weir
elevation.
S[ation E1eva[ion Data num= 9
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
....::.xx...r..:.:+....+.+...+..«:......:....x:,.:....,..x.....+ax.+..w....«....
575 4840 985 4825 993 4824 1070 4815 1155 4813
1681 4813 1760 4824 1B10 4831 1858 4832
Manning's n Values num= 3
Sta n Val Sta ❑ Val Sta n Val
Ywi4Yt+t4tt;ftMkl4hivY#fiikYkRt41RiF�txX4klkxARR£
575 .035 993 .04 1760 .035
Bank S[a: Left Right Lengths: Left Channel Right Coeff Conir. Expan.
993 1760 345 345 345 .1 .3
Hlocked Obstructions num= 1
Sta L Sta R Elev
xw.ww�rrx�i�:�::.::x++t+
575 187� 4824
CROSS SECTION OUTPUT Profile #100 year
t«a�xF;:rx+.a+xtr�.r�::t�+ktt�+�:�xix+++ss�i:.+<s::i:�t:tt��t.:�t�+��s:��>��.��.t+t�i:x+:kxwrr.
R E.G. Elev �ft) � 4825.46 * Element * LefC OB * Channel * Right OB *
R Vel Head (ft) * 0.00 * Wt. n-Val. * 0.035 * 0.040 ' 0.035 *
* W.S. Elev lftl * 4825.46 * Reach Len. (ft) * 345.00 * 345.00 F 345.00 *
* Crit W.S. (ft) * * Flow Area (sq ft) * 10.63 • 1122.04 * 7.64 *
, * E.G. Slope (ft/ft) *0.000000 * Area (sq ftl * 10.63 * 1122.04 k 7.64 *
* Q Total (cfs) ' 1.00 * Flow (Cfs) ' 0.01 * 0.99 * 0.00 *
* Top Width (ft) * 79B.10 ' Top Width (ft) * 20.65 " �67.00 " 10.45 *
* Vel Total (ft/s) * 0.00 * Avg. Vel. (Et/s1 * 0.00 • 0.00 � 0.00 *
� Max Chl Dpth (ft) � 1.46 w Hydr. Depth (fU w 0.51 * 1.46 ^ 0.73 i
' Conv. Total (cfs) * 54264.5 • Conv. (cfs) * 289.3 * 53�13.5 ' 261.7 *
' Length Wtd. (fU * 345.00 * We[ted PeY. (ft) ` 20.72 + �67.00 • 10.55 *
* Min Ch E1 (ft) � 4824.00 * Shear (lb/sq fU * 0.00 * 0.00 � o.00 *
* Alpha • 1.01 • Stream Power (lb/ft s) � 0.00 * 0.00 * 0.00 �
� Prctn Loss (fU • 0.00 • Cum Volume (acre-ft) • 1.30 • 200.80 ' 3.20 k
* C s E Loss (fU " 0.00 � Cum SA (acres) • 1.66 * 123.35 " 1.98 *
+a+�.t++a«:«�+Rrx+kxwrwrx+a.irxx«+x�rx+�.��++��.a:tt+at++*t�ti+ax���rKrt�ixxi++�i�::+ra��rx�r�a
Wacning: The conveyance ratio (upstream co�veyance divided by downstream conveyance) is less than
0.� or greater than 1.4. This may indicate the need for additional cioss sections.
CROSS SECTION OUTPUT Pzofile #500 year
1lNAYlxh+fYrtY4#tit41f1S4t4YYiiM4YYIfflwxl�wA4Rft�F�tkf#1R#i#ktiiffRlSxlRlfRxxixFFFf�tTfttlFtilx
* E.G. Elev (ft1 � 4828.97 * Element * Left OB * Channel * Right OB �
* Vel Head (ft) * 0.00 � Wt. n-Val. • 0.035 * 0.040 * 0.035 *
* W.S. Elev (ft) * 4628.9� ' AeaCh Len. (ft) ' 345.00 t 345.00 ' 345.00 *
* Crit W.S. (ft) ` * Flow Area (sq fU • 251.18 • 3812.16 * 88.23 *
* E.G. Slope (ft/ft) *0.0000�0 * Area (sq ft) * 251.18 • 3812.16 * 88.23 *
* Q Total (cfs) F 1.00 * Flow (cfs) ' 0.04 * 0.94 � 0.02 *
* Top Width (fU " 919.02 � Top Width (fU ' 116.52 * 767.00 * 35.50 *
* Vel Total (ft/s) * 0.00 � Avg. Vel. (f[/s) ` 0.00 � 0.00 * 0.00 "
r Max Chl Dpth (fU * 4.97 * Hydr. �epth (fU ' 2.16 * 4.97 � 2.49 *
� Conv. Total (cfs) *437045.0 R Conv. (cfs) • 17782.0 �412435.3 * 6827.� *
R Length Wtd. (ft) * 345.00 * Wetted Per. (ft) * 116.65 � 767.00 " 35.85 *
� Min Ch E1 (ft) * 4824.00 * Shear (lb/sq ft) * 0.00 * 0.00 ` 0.00 *
k Alpha ' 1.02 t Stream Power (lb/ft s) * 0.00 * 0.00 * 0.00 *
• Frcin Loss (ftl • 0.00 • Cum Volume (acre-fU • 18.65 * 670.01 * 21.44 *
* C & E Loss (fU ' 0.00 ' Cum SA (acres) • 8.22 t 128.17 * 5.96 *
1M*h##fX#+1ki�i#iFFf414#MkF#�MllhifF#+#4i+4if4!/�#14#1#k#i�k1i#4iii#!*#Y#k4K�h4{tkAfif111Ii1f11
CROSS SECTION OUTPUT Profile p10 year
4R#iti4#t4it�wxfitfti���#%�FTtktt#114i1MfxYf#4it4t�t�ik*+�i#A#iiY4ii4Alk4k#�#�ii##i##%##i##4FYi#
Page 3
STVRAIN.rep
* E.G. Elev (ftl * 4824.08 • Element • Left OH ' Channel * Right OB *
- * Vel Head (f[) * 0.00 " Wt. n-Val. * 0.035 * 0.040 * 0.035 *
* W.S. Elev (ft) * 4824.08 * Reach Len. (fU * 345.00 " 345.00 • 345.00 *
* Crit W.S. (ft) * * Flow Area (sq ft) + 0.02 • 59.55 t 0.02 *
� E.G. Slope (ft/fU •0.000006 * Area (sq ft) • 0.02 * 59.55 * 0.02 *
* Q Total (cfs) = 1.00 "' Flow (cfs) +' 0.00 ^ 1.00 * 0.00 *
"' Top width (fU * 768.18 " Top Width (fU * 0.62 ' 767.00 * 0.55 '
* Vel Total (ft/s) +' 0.02 * Avg. Vel. (ft/s) ' 0.01 t 0.02 " O.D1 *
' Max Chl Dpth (ft) * 0.08 • Hydr. Depth (fU * 0.04 • 0.08 � 0.04 *
* Conv. Total (cfs) * 402.8 * Conv. (cfs) * 0.1 * 402.6 � 0.1 *
* Length Wtd. (fU * 345.00 ' Wetted eer. (ft) * 0.63 * 96�.00 * 0.56 *
* Min Ch E1 (ft) * 48�4.00 ' Shear (lb/sq Et) * 0.00 '" 0.00 • 0.00 *
* Alpha - * 1.00 * Stream Power (lb/ft s) "' 0.�0 * 0.00 '� 0.00 *
* Frcin Loss (ft) • 0.00 * Cum Volume (acre-fU ' 0.03 * 20.73 * 0.58 *
* C & E Loss (EU • 0.00 * Cum SA (acres) + 0.06 * 121.47 + O.OB *
+�w�t++i�:::x�.r:a.+::...�.xxx+Ka.+t<.��+�.�t:aii:...«:�R..«.+t+wr:K�+:�+«�a:�.,:«k�x.xk.rx�++���
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.'J or greater ihan 1.4. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile #50 yeaY
k#W#Y4ki#ffTR}1R*i1R++F4tttith'.�1'.lMAfMRk1h+M#4t'h*1kt*fi4k+il+i;�41Sif11'.!#1'Rf114#Y#4YtTliii#4#Ait+
"' E.G. Elev (fU * 4824.72 * Element + Left OB * Channel • Righ[ OH �
' Vel Head (ft) * 0.00 • Wt. n-Val. F 0.035 * 0.040 + 0.035 *
• W.S. Elev (ft) * 4824.72 � Reach Len. (fU • 345.00 � 345.00 * 345.00 *
* Crit W.S. (fU � • Flow n.rea (sq ft) * 2.08 * 553.15 � 1.86 *
* E.G. Slope (ft/fU *0.040000 * Area (sq fU * 2.08 * 553.15 * 1.86 *
* Q Total (cfs) * 1.00 • Flow (cfs) * 0.00 ' 0.99 * 0.00 *
* Top Width (fU * 777.92 * Top Wid[h (fU • 5.77 * 767.00 ' 5.15 *
* Vel Total (ft/s) ' 0.00 * Avg. Vel. (ft/s) • 0.00 * 0.00 * 0.00 *
' Max Chl Dpth (ft) * 0.72 * Nydr. Depth (fU ' 0.36 • 0.72 • 0.36 *
* Conv. Total (cfs) * 16609.5 * Conv. (cfs) ' 44.5 * 16525.3 • 39.7 •
' Length Wtd. (ft) * 345.00 * Wetted Per. (fU * 5.81 F 767.00 • 5.20 *
* Min Ch E1 (fU • 4824.00 * Shear (16/sq fU • 0.00 * 0.00 ' 0.00 '
' Alpha * 1.00 * Stream Power (lb/ft s) * 0.00 * 0.00 • 0.00 •
• Fzctn Loss (ft) � 0.00 * Cum Volume (acie-fU * 0.35 * 106.84 • 1.65 *
+ C & E Loss (fU * 0.00 * Cum SA (acres) ' 0.79 * 122.37 ' 1.00 '
wr:+...xt�:::x.wrR.+.at�+.«:+:::.xxw.x+:..:kx..wwr:...awr;twtt.«�+�t��+�:::rw:.r:.«�+ri+x+::t��:r
Warning: The conveyance ratio (upstream conveyance divided 6y downstream conveyancel is less than
0.� or grea[er Chan 1.4. This may indicate the need for additional cross sections.
� CROSS SECTION
RIVER: S[. Vrain River
REACH: EXISTING LAKES RS: '/1254
INPUT
Description: The water will pond to 4824 in the lakes upstream of the proposed
spillway a[ czoss-section 68595 as this is the proposed weir
elevation.
Station Elevation Data num= 17
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.�w++itt�:.::::.wr:�+.tiii:�t�+.*tr�.xw.:..:r..��.�.t.:��.::.::..x::::.��ww.++.aF�r
490 4858 655 4844.5 730 4841 905 4835 975 4836
1000 4834 1151 4832 1311 4829 1468 4826 1506 4826
1516 4824 1589 4810 1658 4810 1901 4811 1982 481D
2062 4824 2112 4633
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
•A'.lfY1YYi*t1;th+�.!*hYik144�tkif:T'.��.lR1Tfi!#1:fii4MtYiF
490 .035 1516 .04 2062 .035
eank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Erzpan.
1516 2062 266 266 266 .3 .5
6locked Obstructions num= 1
Sta L Sta R Elev
a..��.+.xx...x..«+.+.t+.
490 3000 4824
CROSS SECTION OOTPUT Profile #100 yeaz
. T1Yx1f#t*Tttttttltiitffi;;fkff�.!'.l�.lthAhY#Y4411ttf4f;Fl;fat+t4'R#h+M*kt1*RfhYeY#1444k1i#k1h1iY4S##!f
Page 4
STVRAIN.rep
+ E.G. Elev (fU ' 4825.46 " Element • Left OH * Channel * Right OB *
� * Vel Head ifU • 0.00 * WL. n-Vdl. * 0.035 i 0.040 * 0.035 *
• W.S. Elev (ft) � 4825.46 t Reach Len. (ft) * 266.00 ` 266.00 � 266.00 *
* Crit W.S. (fU ` * Flow Area (sq ft) * 5.35 ' 798.74 * 5.94 *
� E.G. Slope (ft/fU '0.000000 a Area (sq fU ' 5.35 t 798 J4 * 5.94 *
R Q To[al (cfs) * 1.00 * Flow (cfs) * 0.00 * 0.99 * 0.01 *
* Tap width (fU ` 561.44 � Top Width (tU * 7.31 � 546.00 * 8.13 "�
R Vel To[al (ft/s) � 0.00 * Avg. Vel. (ft/s) * 0.00 * 0.00 ' O.oO *
• Max Chl Dpth (ftl * 1.46 ` Hydr. Depth (ft) * 0.73 * 1.46 * 0.73 *
R Conv. Total (cfs) • 38621.5 • Conv. (cfs) t 182.0 * 38236.7 � 202.7 *
* Leng[h wtd. (f[) "' 266.00 * Wetted Per. (ft) * 7.46 * 546.00 • 8.26 *
* Min Ch E1 (ft) ' 4824.00 • Sheal (lb/Sq ft) * 0.00 * 0.00 * 0.00 *
* Alpha � 1.00 * Siream Power (lb/ft s) � 0.00 R 0.00 ^ 0.00 *
• Frctn Loss (f[1 ' 0.01 x Cum Volume (acre-ft) • 1.24 ' 193.19 � 3.15 "'
* C & E Loss (fU ' 0.00 r Cum SA (acres) • 1.55 k 118.15 • 1.91 *
...+......:::......:...:....a.»x.++.:......x«.xk.++a.:.+..:.:..:.++..+.....:.�.:...:�+.....x.x:.
CROSS SECTION OUTPUT Profile p500 year
.+......:.,..:::...+:.+.+.:..r.x..:.:..,.x,+.+««+.:...::::...:.+:+.::......s.........:....+...:
� E.G. Elev (EU * 4828.97 * Element • Left OB w Channel * Right OB *
+ Vel Nead (fU ° 0.00 • WC. n-Val. * 0.035 * 0.040 � 0.035 *
' W.S. Elev (ft) + 4828.97 • Reach Len. (ft) * 266.00 * 266.00 * 266.00 *
• Crit W.S. (Et) * * Flow Area (sq ft) ' 383.42 * 2713.74 • 68.62 *
* E.G. Slope (ft/ftl '0.000000 * Area (sq ft) * 383.42 • 2�13."l4 * 68.62 �
* Q Total (Cfs) ' 1.00 * FlOw (cfs) * a.08 * 0.91 * 0.02 <
* Top Width (fU * 777.05 ' Top Width (ft) ' 203.44 • 546.00 � 27.61 •
* Vel Total (ft/s) ' 0.00 ' Avg. vel. (ft/s) � 0.00 ' 0.00 * 0.00 *
* Max Chl Dpth (ftl ' 4.97 * HydZ. Depih (ft) ' 1.88 " 4.9� * 2.49 •
* Conv. Total (cfs) *323�04.3 ' Conv. (cfs) ' 2487"1.9 "293598.0 * 5288.4 �
* Length Wtd. (fU • 266.00 � Wetted Per. fft) * 203.67 * 546.00 * 28.06 *
* Min Ch E1 (fU * 4824.00 • Shear (lb/sq ft) * 0.00 * 0.00 � 0.00 *
" Alpha * 1.06 * S[ream Power (lb/ft s) * 0.00 " 0.00 " 0.00 *
* Fzctn Loss (ftl ' 0.01 * Cum Volnme (acre-ft) ' 16.13 * 644.17 � 20.82 •
• C & E Loss (f[� i 0.01 * Cum SA (acres) " 6.95 * 122.97 � 5.71 '
...:+......:.,:.a....x..w.....x....:x.:«x..:....+...a+.+..w+..:«x+•::....:.:....:r.::.+x.+«..+.
CROSS SECTION OUTPUT Profile 7{10 year
! +..+.....:...:..,:...+a...r++:.....,x.::......++.::....+...:x.xxx..:......«....:...:..++r..++..
� + E.G. Elev �ftl " 4824.08 * Element ' Left 08 * Channel * Right OB *
� • Vel Head (fU ' 0.00 * wt. n-Val. * 0.035 • 0.040 * 0.035 r
� i W.S. E1ev (ft) * 4824.08 * Reach Len. (ft) * 266.00 a 266.00 * 266.00 �
* Crit w.S. (fU * ' Flow Area (sq fU * 0.01 * ?0.79 * 0.02 *
• E.G. Slope (ft/ft) •�.000014 * Area (sq ft) • 0.01 • 40.79 ` 0.02 t
• Q 1bta1 (cfs) ' 1.00 ' Flow (cfs) * 0.00 • 1.00 * 0.00 �
* Top Width (ft) ' 546 J9 * Top Width (ft) * 0.37 * Se6.00 * 0.42 •
+ Vel To[al (ft/s) * 0.02 * Avg. Vel. (ft/s) * 0.02 * 0.02 * 0.02 *
* Max Chl Dpth (ftI * 0.07 * Hydr. Depth (ft) * 0.04 • 0.07 ' 0.04 *
' Conv. Total (cfs) " 268.9 * Conv. (cfs) * 0.1 • 260.8 * 0.1 *
' Length Wtd. (fU ` 266.00 ' We[ted Per. (fU * 0.38 * 546.00 * 0.42 *
* Min Ch E1 (fU � * 4824.00 * Shear (lb/sq ft) ' 0.00 � 0.00 • 0.00 *
R Alpha * 1.00 * Stream Power (lb/ft s1 ' 0.00 * o.00 • o.00 *
* Frctn Loss (fU ' 0.00 * Cum Volume (acre-ft) • 0.03 * 20.33 * 0.58 k
* C 6 E Loss (ft) ' 0.00 ' Cum SA (acres) * 0.06 * 116.27 * 0.07 +
•wxx.:..x.��:�...�:+rxwwxx..r:x+++.w,rt..�x:.�:t:ti��.+xxr:xr:3+it+i�+i:.ar+r.r+i++rR++++:�++ti�3tk
CROSS SECTION OUTPUT Profile #50 year
.+......:x.x+:::,+++.+r..+x.x.++.+.r.....xxxx:.++a....x..xx:.:..+..<....x..+.w,...:..+.+++...+.
* E.G. Elev (ftl • 4824.72 " Element • Left OB * Channel * Right OB *
* Vel Head (fti • 0.00 * Wt. n-Val. * 0.035 • 0.040 * 0.035 t
* W.S. Elev (fU ' 4824.72 * ReaCh Len. (ft) i 266.00 • 2fi6.00 * 266.00 •
* Crit W.S. (ftl + * Flow Area (sq fU R 1.30 " 393.77 r 1.44 *
* E.G. Slope (ft/ft) R0.000000 * Area (sq ft) '� 1.30 ` 393.77 • 1.44 *
* Q Total (cfs) * 1.00 " Flow (cfs) ' 0.00 * 1.00 • 0.00 *
� Top width (ft) * 553.61 * Top width (ft) * 3.61 * 546.00 * 4.01 "
� Vel Total (ft/s) * �.0o R Avg. Vel. (f[/s) * 0.00 * 0.00 • 0.00 *
t Max Chl Dp[h (ft) * 0 J2 t Hydr. Depth (ft) * 0.36 * 0.72 • 0.36 *
* Conv. Total (cfs) • 11822.1 ` Conv. (cfs) * 27.6 * 1ll63.7 * 30.7 *
* Le�gth W[d. (fU * 266.00 " Wetted Per. (ft) * 3.68 * 546.00 * 4.07 *
* Mi❑ Ch E1 (fU • 4824.00 * Shear (lb/sq fU ' 0.00 * 0.00 * 0.00 *
� Alpha + 1.00 + Stream Power (lb/ft s) ' 0.00 " o.00 • 0.00 •
• Frctn Loss (ft) * 0.00 * Cum Volume (acze-ft) ' 0.34 • 303.09 ' 1.64 *
• C & E Loss (fU * 0.00 * Cum SA (acres) E 0.'76 * 117.17 � 0.97 *
�+...a+x+.+x....xx...«.,...�...+,x.�..a++.....r.�::�«::.:kx�+++xx...+...:.......:x::.+...a......
Page 5
STVRAIN.rep
CROSS SECTION
RIVER: St. Vrain RiveY
REACH: EXISTING LAKES RS: 70988
INPUT
Description: The water will pond Co 482a in the lakes upstream of the proposed
spillway at cross-section 68595 as this is the proposed weir
elevation.
Sta[ion Elevation Data num= 17
S[a Elev Sta Elev Sta Elev Sta Elev Sta Elev
...x..+:...+::.........«..++.+......a..+.a....+..+.+.xxxa.+....xx.+..........x..
490 4858 655 4844.5 730 4841 905 4835 9�5 4837
1000 483�.2 1151 4830 1199 4824 1311 4810 1468 4820
1506 4830 1589 4825 1658 4813 1901 4810 1982 4810
2104 4824 2112 4825
Mannin9's n Values num= 3
Sta n Val Sta n Val Sta n Val
.+x.:........+.«:::...+a.wx....x..++..«w...::...
490 .035 1199 .04 2104 .035
Hank Sta: Left Right Lengths: Left Channel Aight Cceff Contr. Expan.
1199 2104 495 495 495 .3 .5
Ineffective Flow num= 1
Sta L S[a R Elev Peimanent
490 1670 4827 F
Blocked Obstiuctions num= 1
Sta L Sta R Elev �
+w..+++x..+++.x+.::::+..
490 3000 4824
CROSS SECTION OUTPUT Profile #100 yeaY
•fRiitf1141#+�+��xttt#�+i#RT++tf++ilx}txtsiki#1RFkF+i�lRRxxlkti+fA*�Rf�iitf44kiF*�+£!fi#tR#11Mi
* E.G. Elev (ft) ` 4825.45 * Element • Left OB ` Channel * Right OH �
* Vel Head (ft) ` 0.01 ' Wt. n-Val. ' ` 0.040 * 0.035 *
� " W.5. Elev (ft) � 4825.45 • ReaCh Len. (ft) • 495.00 ` 495.00 • 495.00 *
* Crit W.S. (ftl * 4824.30 ' Flow Area (sq ft) ' * 627.2� " �.% *
' E.G. Slope (ft/ft) *0.000180 ' Area (sq ft) * 8.36 * 115�.63 ' 7.56 '
* Q Total (cfs) * 403.�4 * Flow (cfs) * * 399.75 ' 3.98 •
* Top Width (ft) * 831.65 * Top Width (ft) * 1L 56 * 812.08 " 8.00 +
* Vel Total (Et/sl * 0.64 ' Avg. Vel. (ft/s) ' * 0.64 • 0.53 *
• Max Chl Dpth (ft) * 1�.45 ' Hydr. Depth (ft) * ' 1.45 " 0.95 *
* Conv. Total (cfs) ' 30063.9 * Conv. (cfs) * " 29787.1 * 296.8 *
* Length Wid. (ft) * 495.00 ' wetted Per. (ft) ' * 434.00 * 8.51 *
* Min Ch E1 (fU ` 4829.00 ' Shear (lb/sq ft) • * 0.02 ' 0.01 '
• Alpha � 7.00 ' Stream Power (lb/ft s) ' * 0.01 • 0.01 �
� Frctn Loss (ft) * ' Cum Volume (acie-ft) R 1.20 * 18�.22 ' 3.11 *
' C & E Loss (fU * ' Cum SA (acres) • 1.49 * 114.01 * 1.96 *
xwiww+�:+:.::::,+..�xKw.:..:.a+xiRR..:::i�t.+:.+:iw+.«��:t++aa+�.:r.::.ti::ai:�+xk.rR::.+i++�t+
Note: Multiple critical depths were found at this location. The critical depth with Che lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #500 yeaY
++F+«:<++i.�Kr.+.++.:t�++Rwx.r+�ak�yx.xx=:aa.�wxxr+:�+�iwxxw�e�t�t++w.�..w+.r..�:��x+i+r�w�.�+a
* E.G. Elev (fU R 4828.96 * Element ' Left OB � Channel + Right OH *
* Vel Head (ft) * 0.02 * Wt. n-Val. * 0.035 * 0.040 � 0.035 '
" W.S. Elev (f[) * 4828.94 " Reach Len. (ft) * 495.00 * 495.00 * 495.00 •
* Crit W.S. Iftl * 4825.53 + Flow Area (sq ft) * 97.44 * 4116.45 � 35.48 *
• E.G. Slope (ft/ft) *0.000115 * Area (sq ft) ` 97.44 ` 4116.45 * 35.49 *
' Q Total (cfs) * 4692.77 � Flow (cfs) * 80.70 * 4578.74 * 33.33 *
+ Top Width (ft) ` 930.77 � Top Width (fU * 39.48 * 883.29 * 8.00 *
* Vel Total (ft/S) ' 1.10 * Avg. Vel. (ft/s) * 0.83 • 1.11 ' 0.94 •
* Max Chl Dpth (ft) ' 4.94 * Nydr. Depth (ft) * 2.47 * 4.66 • 4.44 *
* Conv. Total (cfs) *436999.3 ` Conv. (cfs) * 7515.4 *426379.9 * 3104.0 * �
* Leng[h Wtd. lfU ' 495.00 • Wetted Per. (fU * 39 J9 " 884.13 ` 12.00 *
* Min Ch E1 (ft) ' 4824.00 • Shear Qb/sq ft) ' 0.02 ' 0.03 � 0.02 R
" AlPha ' 1.00 ' StYeam PoweY (lb/ft s) * 0.01 * 0.04 * 0.02 *
* Frctn Loss (fU * ' Cum Volume (acie-ft) ' 14.67 � 623.31 ' 20.50 *
' C & E Loss (ft) * * Cum SA (acres) • 6.21 • 118.61 " 5.60 `
rxRr+xxrx..e«.r::.+r:::a.at+�r...:::=r�«+w.+:.:x.�>.wx.�+t:ta::�»+.+xrt�FK�r»xKw...+:.:.�+::a::
Page 6
STVRAIN.rep
�� Note: Multiple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT PYofile #10 yeaT .
+..x.:.+..x...«.:,..+.....r..«........«....w...:x+..x�,.«........,x+:+..x.........+..+x+.>....+
* E.G. Elev (fU * 4824.07 � Element "' Left OB * Channel � Right OH `
w Vel Head (ft) "' 0.00 • Wt. n-Val. * ' 0.040 * 0.035 *
* W.S. Elev (ftl • 4824.07 + Reach Len. (f[) * 495.00 � 495.00 * 495.00 '
• Crit W.S. (ft) * 4824.02 ' Plow Area (sq ft) " • 30.52 ` 0.02 *
+ E.G. Slope (ft/ft) •0.00002"1 ' Area (sq ft) * 0.02 * 55.81 F 0.02 `
* Q Total (cfs) * 1.00 * Flow (cfs) * • 1.00 • 0.00 *
* Top Width (ftI " "195.25 * Top Width (ft) t 0.56 * 794.12 �" 0.56 ' �
* Vel Total (Et/s) * 0.03 * Avg. Vel. (ft/s) * • 0.03 • 0.02 '
"' Max Chl �p[h (fU * 0.0"1 * Nydr. Depth (ft) ' * 0.07 * 0.04 •
* Conv. Total (cfs) * 193.2 � Conv. (cfs) ' * 193.1 * 0.1 `
• Length Wtd. (ft) • 495.00 ' Wetted Per. (ft) * ' 434.00 • �.57 *
* Min Ch E1 (fU ' 4824.00 * Shear (lb/sq ft) ' • 0.00 * 0.00 '
• Alpha • 1.00 ` Stream PoweY (lb/f[ 5) * ' 0.00 ' 0.00 '
• FIc[n Loss (fU ' * Cum VolUme (aCYe-ft) * 0.03 ' 20.04 • 0.58 '
* C & E Loss (EU ` * Cum SA lacresi * 0.05 * ll2.18 � 0.07 *
...x..:••x:...+.:::::.:.:+.+:......«.x.x..w....+.«+..:.a...+..«....x.xx+x:x+.+.++.++...+.x++.w.
CROSS SECTION OUTPUT Profile #50 year
+:..:..«.:..x..+x..........x..:..«.....:...«..w......+_+�..++..w+..++..+.x..x.w.:..«.+.+..+.++.+
� E.G. Elev (ft� • 4824.72 * Element * Left OB * Channel * Right OB *
k Vel Head (ft) * 0.00 � Wt. n-Val. * * 0.040 * 0.035 *
* W.S. Elev fft) * 4824.72 * Reach Len. (fU * 495.00 * 495.00 * 495.00 +
* Crit W.S. (fU x 4824.11 i Plow Area (sq ft) F � 310.67 * 2.05 *
* E.G. Slope (ft/fU *0.000079 ' Area (sq ft) * 2.05 t 570.41 * 2.05 *
' Q Total (Cfs) * 82.43 • Flow (Cfs) * ' 82.04 * 0.39 '
* Top Width (ft) * 811.74 * Top Width (ft) " 5.73 * 800.29 ' 5.73 *
* Vel Total (ft/s) * 0.26 * Avg. Vel. (f[/s) * * 0.26 * 0.19 *
* Max Chl Dpth (ft) • 0.72 * Hydi. Depth (ft) • * 0."12 * 0.36 •
* Conv. Total (cfs) ` 9278.5 * Conv. (cfs) • * 9234.9 * 43.6 '"
' Length Wid. (fU * 495.00 ` We[ted Pei. (fU ' ' 934.00 * S."/'/ *
. * Min Ch EI (ft) * 4824.00 • Shear (lb/sq ft) * * 0.00 t 0.00 *
3 Alpha • 1.00 * Stream Power (16/ft s) * • 0.00 * 0.00 3
= Frctn Loss (ft) ' • Cum Volume (acre-£t) • 0.33 � 100.14 "' 1.63 *
' C & E Loss (f[) ' * Cum SA (acres) * 0.73 * 113.06 � 0.94 *
..w..+....«.«::..:.:,:::..........:.+......�..x.x+...:...+++x....+x.:.:..«..a...«.....+::.:......
No[e: Mul[iple critical depths were found at ihis location. The critical depth with the lowest,
valid,
energy was used.
INLINE STRUCTURE
RIVER: St. Vrain River
REACH: EXISTING LAKES RS: �06"13
INPUT
Description:
Distance from Upsiream XS = 67
DeCk/ROadway Wid[h = 103
Weir Coefficient = 2.63
Weir Embankmen[ Coordinates num = 12
Sta Elev Sta Elev Sta EleV Sta Elev Sta Elev
41:#4f1'Flkk1*fRtitf�titft#1�kF#ktilliiRfif#4k4h1:1fftiiFiYvl4#1kA}�it�i1#4141YTA11f
1000 4837 1311 4828 1374 4828 1468 4830 1589 4834
1738 4834 1833 4820 1873 4810 19"]"] 4810 2016 4820 r
2074 4B30 2132 4830
Upstream Embankment side slope = 4 horiz. to 1.o vertical
Downstream Embankment side slope = 4 horiz. [0 1.0 vertical
Maximum allowable submergence for weir flow = .95 �
Elevation at which weir flow begins =
Weir crest shape = Hroad Crested
INLINE STRi1CTURE OUTPOT Profile #100 yeaT Inl StIUCt:
� .,+...»:,.x.........+.«.x::....xx::......::.+.+.++..x..,......«+..+:a+.r+x
Page /
STVRAIN.rep
• E.G. Elev (ft) * 4825.45 • Q Gates (cfs) * *
* W.S. Elev (ft) * 4825.45 • Q Ga[e Group (cfs) * 4824.11 "
R Q Total (cfs) • 403.74 • Gate Open Ht (ft) ' 2.00 *
* Q Weir (cfs) * 403 J4 * Gate #Open * 4824 `
* Weir Flow Area (sq ft) * 352.00 " Ga[e Area (sq ft) • 4827.01 '
. * Weir Sta Lft (Et) * 1796.01 3 Gate Submerg * *
' Weir Sta Agt (ft) * 204�.62 * Gate Invert (ft) ' 4824.16 #
� Weir Dfax ➢epth (fU * 1.45 • ' "
* Weir Avg Dep[h (ft) * 1.40 * * '
* Weir Submerg * 0.99 * ' '
* Min E1 Weir Flow (Et) * 4824.01 * * •
t wr Top Wdth (ft) � 251.61 * * '
.....+...++..............+x....xw.xx::+....+...w..:«:.....+.«..�+...x.:..
Note: Multiple critical depths were found at this location. The critical depth •xith the lowest,
valid,
energy was used.
INLINE STRUCTURE OUTPUT PiOfile N500 year Inl StruCt:
t4i+#�.lii'Rii##F1hFi#4lifft#iRt#t}tifftY+4ki+1f114f�[iYi44fYYY#'.l+hikRkift+#h
• E.G. Elev (ft) * 4828.96 ' Q Gates (cfs) * *
* W.S. Elev (ft) ` 482B.94 * Q Gate Grovp (cfs) * 0.00 "
t p Total (cfs) * 4692."1"1 * Gate Open Ht (fU ` 0.00 *
* Q Weir (cfs) * 4692.77 • Gate #Open * � '
� Weir Flow Area (sg ft) * 1407.89 * Gate Aiea (sq ft) * 4825.44 *
* Weir Sta Lft (fU * 1278.01 * Gate Submerg * *
' Weir Sta Rgt (fU * 2067.94 * Ga[e Invert (Et) * *
* Weir Max Depih (ft) * 4.95 * ` '
• weir Avg �epth (ft) * 3.23 R ' *
+ weir Submerg * 0.97 F * '
• Min E1 Weir Flow (fU ' 4824.01 * ` "
* Wr Top wdth (ft) ` 436.55 ' ' *
axi.+�FFtxrx.+x�i+..:.:t....«;tas«rr�:r:x::.�3re�x.i+x...xw::��.a+�F��iRt3+
Note: Multiple critical dep[hs were found at this location. The cri[ical depth with the lowest,
valid,
energy was used.
INLINE STROCTORE OUTPUT Profile q10 year Inl Strvct:
•..+:.++.rw+.r:.w..:,.:::it�+w.�..r�:aw::r++++�+t+w+.rrwxrx:x:tt+«t+*�a«...i
" E.G. Elev (ftl * 4824.07 * Q Gates (cfs) * *
+ W.5. Elev (fU * 4824.07 • Q Gate Group (cfs) '� 0.�0 *
* Q Total (cfs) * 1.�0 * Gate Open HC (ft) �' 0.00 �
* Q Weir (cfs) ' 1.00 ' Gate qOpen * 0 '
• Weir Flow Aiea (sq f[) * 16.44 * Gate Area (sq fU ' 4841.06 '
* Weir S[a Lft (ft) * 1805.36 * Gate Submerg '� '
• Weir S[a Rgt (fU ` 2039.61 * Gate Inver[ (Et) * '
* Weir Max Depth (ft) ' 0.0� � ' `
* weir Avg Depth (ft) * O.a� � * `
* 4;eir Su6merg * 0.88 * ` '
* Min E1 Weir Flow (fU ' 4824.01 � ' `
• Wr Top wdth (fU • 234.23 ' * *
...ti.�.��a.:t«+t:�a+it++..++r:.+..::::..�a«+«+«+.:.::iii�e++�w�xxRFRxx��
INLINE STRUCTURE OUTPUT Pro£ile #50 yeaY Inl StruCt:
.�*.R��..��.«:�x+::w.�.++txx.�xi+.,�..w.:::i�..�tx.�++:.�tt+i+�i+�i+.a+++�:
• E.G. Elev lftl ' 4824.72 • Q Gates (cfs) * `
* W.S. EleV (ft) • 4824.72 * Q Gate Gioup (Cfs) ' 0.00 *
• Q Total (Cfs) ' 82.43 • Gate Open HC (ft) * 0.00 *
* Q Weir (cfs) ' 82.43 ' Gate qOpen * 0 •
• Weir Flow Area (sq ft) * 170.49 t Gate Area Isq ft) * 4824.06 *
* WeiT Sta Lf[ (f*�,) • 1800.99 � Gate SUbmeig ' *
• Weir Sta Rg[ (ft) * 2043.36 * Gate InveYt (ft) * "
+ Weir Max Depth (ft) * 0.72 ' . ' `
+ Weir Av9 Depth (ft) * 0 JO � * *
� weir Submerg • 0.99 " * *
` Min E1 Weir Flow (ft) ' 4824.01 * ` "
* Wr Top Wdth (ft) * 242.36 * * `
++.«.+,.......r:x.x.x+«+...+...«•...+<.+.:...:x.+x.+.=.+.«++«:x.:.:.•xx..
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
Page 8
STVRAIN.rep
CROSS SECTION
RIVER: St. Vrain River
� REACH: EXISTING LAKES RS: 70493
INPUT
Description: The water will pond to 4824 in the lakes upstream of the proposed
spillway a[ cross-section 68595 as this is the proposed weir
elevation.
SGation ElevaCiOn Oata RUm= 20 �
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.+..:..:...r....+.....+..+.....rx..a..........::.+.........:...+....:..w:.w:..:.
490 4858 655 4844.5 730 4841 905 4836 975 4635.5
1000 4835.5 1112 4824 1151 4820 1311 4810 1468 4815
1506 4827 1522 4827 1564 4827 1589 4824 1656 4810
1901 4810 1982 4610 2005 4810 2�80 4824 2112 4830
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
..a.+..+.......+.+++.+.. ....:......x...xw::x
490 .035 1112i* .04 20B0 .035
Hank Sta: Left Righ[ Lengths: Left Channel Righ[ Coeff Contr. Expan.
1112 2080 542 542 542 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
490 1650 4827 F
Blocked Obstructions num= 1 �
Sta L Sta R Elev
+..�::a....:........:a:+.
490 3000 4824
CROSS S£CTION OUTPUT Profile ₹t100 year
:x.:..:...::.+.+..+.....r.a.::..:.«...»+:.:.....+..+x...+..x...........:.:a.+..+.w+.+.wx...+...
* E.G. Elev (ft) ' 4825.44 � Element " Le$ OB • Channel ' Right OB "
j • Vel Head (ft1 * 0.01 • Wt. n-Val. : �* 0.040 ' 0.035 *
* W.S. Elev (ft) ' 4825.44 ' Reach Len. (ft) 542.00 542.00 * 542.00
* Crit W.S. (ft) " 4824.30 * Flow Area (sq £t) * ' 617.92 * 5.51 *
* E.G. Slope (ft/fU *0.000188 * Area fsq ft) * 10.06 * 1269.98 * 5.51 *
* Q Total (Cfs) * 403."14 ' Flow (Cfs) • ' 401.19 * 2.54 '
* Top Width (ft) * 913.68 * Top Width (ft) * 14.00 " 892.03 t 7.66 '
* Vel Total (ft/sI * 0.65 ` Avg. vel. (ft/s) • " 0.65 * 0.46 F
* Max Chl Dpth (fU • 1.44 ' Hydr. Depth (ft) • * 1.44 * 0.72 '
' Conv. Tota1 (cfs) * 29476.0 ' Conv. (cfs) ' ` �9230.6 * 185.4 '
� Leng[h Wtd. (fU * 542.00 * Wetted Per. (ft) • • 430.00 • 7.80 *
* Min Ch E1 (ft) * 4824.00 * Shear (lb/sq ft) � * 0.02 * 0.01 *
t Alpha * 1.00 ` Stream Power (lb/ft s) R * 0.01 * 0.00 ' �
• Frctn Loss (fU * 0.08 w Cum Volume (acre-ftl ' 1.09 * 173.42 * 3.03 t
' C & E Loss (ft) * 0.00 * Cum SA (acres) * 1.35 • 104.33 * 1.�"/ "
st+t:�i>ii�x�a+�+�.xxxra+�:��+itt....;++�w.x:..:�*t+��i+t��+rxwww+::«��xrwR�ir.rxx+sxk:�+a�+:«tr
Warning: Divided flow computed for this cross-section.
Warning: The conveyance zatio (upstream conveyance divided by downstream conveyance) is less [han
0.7 or greater than 1.4. This may indica[e the need for additional cross sections.
Note: Multiple critical depths were found at ihis location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Piofile S{500 yeai
+*M'IMi#fRt+:Y�4Rk1l1YR+AA}lik4i###Ii�ti#1iYt�ikYlF1141Yf1:F1ARRt4ki�#41Y1If1#k*l11t+#4i4i1i1f1:+�Rf
• E.G. Elev (fU * 4828.84 ` Element * Left 08 * Channel + Right oB *
* Vel Head (fb) * �.02 * Wt. n-Va1. " 0.035 * 0.040 * 0.035 *
F W.S. Elev (ft) ' 4828.83 * ReaCh Len. (ft) • 542.00 * 542.00 * 542.00 *
x Crit W.S. (ft) * 4825.55 * Flow Area (sq ft) * 113.51 R 4447.88 * 62.16 *
t E.G. Slope (ft/ft) `0.000100 * Area (sq ft) ' 113.51 * 4447.88 * 62.16 *
" Q To[a1 (cfs) * 4692.77 * Flow (cfs) * 86.32 � 4559.56 * 46.89 `
* Top width (ftl ' 1040.77 + Top Width (fU • 47.02 * 968.00 * 25.75 *
* Vel Total (ft/s) R 1.01 • Av9. Vel. (f[/s) * 0.76 * 1.03 + �JS �
* Max Chl Dpth (ft) * 4.83 • Hydr. Depth (ft) ' 2.41 * 4.59 + 2.41 *
* Conv. Total (cfs) •469806.8 * Conv. fc£s) * 8642.1 *456471.8 * 4694.8 •
* Lenq[h Wtd. (fU '�' 542.00 " Wetted Per. (fU * 47.27 � 968.64 * 26.20 •
* Min Ch E1 (ft) * 4824.00 ' Shear (lb/sq PC) * 0.01 * 0.03 * 0.01 *
� * Alpha * 1.01 * Stream Power (lb/fC sl ' 0.01 * 0.03 * 0.01 *
Page 9
STVAAIN.rep
* FYCtn Loss (fU * 0.06 * CUm VolUme (a¢e-ft) * 13.47 * 574.65 * 19.95 *
� ' C � E Loss (fU * 0.00 3 Cum SA (acres) * 5 J2 • 108.09 * 5.41 •
4tii#i+i#}tlftf�iit�ffffft#+14#+1t1₹fMAhkki#M*iIM#*#if+i#i�4#k#+ilWni4i'kki#i14h+k#4A+1:Tf1!'.!#4ki'X
Note: Multiple critical depths were found at [his location. The critical depth with the lowes[,
valid,
energy was used.
CROSS SECTION OOTPUT Pro£ile #10 year
�aF�rxFta+Fti+t.+�+:t::++tir��x�xw�,r::��f:��att+tt*�ay�+iry�.�+��wxx,rrxx.x:rr:��wxxx��+a+��:xa.x
t E.G. Elev (f[) a 4824.06 * Element t Left OB " Channel * Right OB *
* Vel Head (ft) ' 0.00 * WC. n-Val. * * 0.040 * 0.035 "'
* W.S. Elev (ft) * 4824.06 k Reach Len. (ft) a 542.00 * 542.00 * 542.00 *
* Crit W.S. (EU ' 4824.02 * Flow Area (sq fU * ` 26.67 • 0.01 �
* E.G. Slope (ft/Et) *0.000041 * Area (sq ft) ' 0.02 " 54.31 + 0.01 *
� Q Total (Cf5) • 1.00 * FlOw (cfs) t * 1.00 " 0.00 *
* Top Width (ft) "' 877.15 * Top Width (ft) t 0.60 ' 876.21 • 0.33 *
* Vel Total (ft/sI * 0.�4 * Avg. Vel. (ft/s) f * 0.04 * 0.03 *
• MaX Chl Dpth (fU * 0.06 * HydY. Depth Ift) ' • 0.06 + 0.03 *
* Conv. Total (cfs) • 155.2 * Conv. (cfs) ' "' 155.2 * 0.0 *
* Length Wtd. (ft) * 542.00 * Wetted Per. (ft) * * 930.00 * 0.34 *
R htin Ch E1 (fU * 4824.00 � Shear (lb/sq ft) * * o.00 * 0.00 * �
' Alpha * 1.00 * Stream Power (lb/ft s) " F 0.00 * 0.00 *
+ Frctn Loss (f[) i 0.02 * Cum Volume (acre-ft) * 0.03 R 19.41 * 0.58 •
t C 5 E Loss (fU * 0.00 ' Cum SA (aczes) * 0.05 • 102.69 * 0.06 *
a.x+a+.++«.+++...+......+..x:x..:+++....+++xx.x.:.+.+:..:..x:xx.•..+++..++...+.x...:..++.+.....
Warning: �ivided flow computed for this cross-section.
Note: Multiple critical depths were found at this loca[ion. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #50 year
44iY+444ki4ilh+llii₹ik*rtMh#!+kli*#hi#Y4FrtlS'.lYifflA'RYfF'Rf'.lTtffiFf:tft�tYStkiFiY4+4Yiix4fi4#4[+i4i
* E.G. Elev (ft) * 4824.71 ' Element * Left oB * Channel * Right OB *
* Vel Nead (ft) * 0.00 * Wt. n-Val. ` ' 0.040 * 0.035 *
* W.S. Elev (fU ' 4824.71 * Reach Len. (ft) • 542.00 * 542.U0 * 542.00 *
* Crit W.S. (ft) ' 4824.11 � FlOw Area (Sq ft) * * 304.44 * 1.34 *
* E.G. Slope (ft/ft) *0.000084 � Area (sq ft) * 2.a4 "' 622.�4 * 1.34 *
* Q Total (cfs) * 82.43 * Flow (cfs) * * 82.17 * 0.26 R
* Top width (fU * 894.31 � Top Width (ft) * 6.90 '* 883.64 ` 3.78 *
* Vel Total (ft/s) * 0.27 * Avg. Vel. (ft/s) '� * 0.27 * 0.19 *
F Max Chl Dp[h �ft) ' 0.71 * Hydr. Depth (ft) * • 0.71 '^ 0.35 "'
• Conv. Total (cfs) * 9012.0 t Conv. (cfs) * ' 8983.9 * 28.1 *
* Lengih Wed. (fU '" 542.00 * Wetted Per. (fC) ' * 430.00 * 3.84 •
* Min Ch E1 (fU * 4824.00 * Shear (lb/sq ft) * " 0.00 "' 0.00 *
• Alpha * 1.00 * Siream Power (16/£[ s1 * ' 0.00 * 0.�0 •
• Frctn Loss (ft) * 0.06 • Cum Volnme (acre-ft) * 0.30 � 93.36 * 1.61 '
' C & E Loss (ft) * 0.00 * Cum SA (aCres) • 0.66 ' 103.50 * 0.88 *
+Y#ti44[iFtYe#1Yfi44YrSi1#i411'.!}}*'.ltAtttt44lfxt44iY4SxtttS4x4iSY4iYkM1*#YAYvfY+x4YiAxkkY'fitf4ti
Warning: Divided flow computed for this cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.� or oreater than 1.4. This may indicate the need for additional cross �ections.
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
energy was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: EXISTZNG LAKES RS: 69651 �
INPUT
�escription: The water will pond to 4824 in ihe lakes upstream of the proposed
spillway at cross-section 68595 as this is the proposed weir
elevation.
Station Elevation Data num= 18
Sta Elev Sta Elev Sta Elev Sta Elev Sta 61ev
fikti}4/rf4iAi4:Y�t#f144�i4ii+#i�lM##ti4t1f1#+klY1i#i14#i4#Y#4#'kii#1#liii##Y#t4�fit
490 4833 655 4833 730 4633 905 4827 94'] 9824
975 4822 3000 4819 1151 4810 1311 4810 1468 4810
1506 4810 1589 4810 1658 4810 1901 4810 1982 4810
eage lo
STVRAIN.rep
� 2005 4810 2092 4824 2129 4630
Manning'S n Values nUm= 3
Sta n�Val Sta n Val Sta n Val
..:.+....x.x::.:..:.......x....a...........x«.xx
490 .035 94"] .04 2092 .035
Bank 5[a: Left Right Leng[hs: Left Channel Righ[ Coeff Contr. Expan.
947 2092 495 362 362 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
490 1151 4827 F
Hlocked Obstructions num= 1
Sta L Sta R Elev
♦T}kti#1i4Rtti;t#itktt#t
490 3000 4824
CROSS SECTION OUTPUT Profile #100 year
.+xx«.+.x..:•,xxx.:x..:.+....+.:.+.«..+.....x.x:ax..:.+......+..x.x.x:xxxx...x.++•+++:+..+..x..
* E.G. Elev (fU ` 4825.37 * Element ' Left OB ' Channel a Right OH +
• Vel Head (fU o.00 * W[. n-Val. * * 0.040 • 0.035 *
* W.S. Elev (ft) " 4825.36 + Reach Len. (ft) ' 495.00 w 362.00 * 362.00 �
* CriC W.S. (ft) * 4824.25 * Flow Area (sq f[) ` • 1281.01 * 5.71 *
* E.G. Slope (ft/ftl *0.000121 " Area (sq ft) * 12.97 * 1558 J2 * 5.71 *
• Q Total (cfs) " 645.94 • Plow (cfa) * " 643.89 * 2.05 `
* Top width (ft) ' 1172.45 * Top Width (f[) - • 19.06 * 1145.00 �" 8.39 '
• Vel Total (ft/s) " 0.50 • Avg. Vel. (ft/s) • ' 0.50 * 0.36 *
• Max Chl Dpth (ft) R 1.36 * Nydr. Depth (fU • ' 1.36 * 0.68 *
R Conv. Total (cfs) * 58637.7 • Conv. Icfs) * * 58451.6 * 186.1 *
' Length Wtd. (fU * 362.00 • Wetted Per. (ft1 ' * 941.00 * 8.50 `
` Min Ch E1 (fU • 4824.00 ' Shear (lb/sq ft) ' ' 0.01 * 0.01 *
• Alpha * 1.00 * Stream Power (lb/ft s) � ' 0.01 • 0.00 *
" Frcin Loss (ft) * 0.08 " CUm Volume (aCYe-fU ` 0.95 • 155.83 • 2.96 *
* C & E Loss (ft) * 0.00 " Cum SA (acres) ' 1.14 * 91.65 * 1.67 *
.a.F.+.++�{it��rx«.esr.s�+,+:x.:.�.iii+�y.�arr�ttk+*t.iR��:.:�i.::t+a<+�t*r�rr,x«rtRrx�tx�t++twi�+
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less ihan
„ 0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical deptris were found at this location. The critical depth with the lowest,
valid,
watez surface was used.
CROSS SECTION OUTPUT Pzofile #500 year
+:..::......a..x.x.,.....a...«»+.:..«....»xx..:x...a«.....x.:.:.:..t+...+w..++�+..:.+......w...
' E.G. Elev (ft) * 4828.79 • Element ' Lef[ OB * Channel * Righ[ OB *
i Vel Head (ft) * 0.02 * Wt. n-Val. * 0.035 • o.040 * 0.035 *
+ w.S. Elev (ft) • 4828.77 � Reach Len. (fU * 495.00 '� 362.00 * 362.00 '
* Crit W.S. (ft) • 4825.11 * Flow Area (sq f[) * 182.66 * 5457.20 • 70.04 •
' E.G. Slope (ft/ft) *0.000113 * Area (sq fU ' 182.66 " 5457.20 * 90.04 *
t Q Total (cfs) * 6291.08 * Flow (cfs) * 128.76 ' 61a6.38 * 55.94 R
' Top Width (fU ' 1267.90 ' TOp Width (ft) * 93.51 ' 1195.00 • 29.39 '
F Vel Total (ft/s) • 1.10 i Avg. Vel. (f[/s) • 0.70 • 1.12 '" 0.80 *
* Max Chl Dp[h (ft) R 4.77 * Hydr. Depth (ft) * 1.95 * 4.77 + 2.38 *
* Conv. Total (Cfs) "591501.6 ' Conv. (cfs) * 12106.4 •574135.8 ' 5259.5 *
* Length Wtd. (ft) ' 363.88 * Wetted Pez. (ft) ' 93.65 * 1145.00 ' 29.78 �
R Min Ch E1 Ift) ' 4824.00 � Sheaz (lb/sq ft) * 0.01 * 0.03 ` 0.02 "'
* Alpha ' 1.01 • Stzeam PoweL (1L/ft S) • 0.01 * �.04 * 0.01 *
* Frctn Loss (fU * 0.04 * C11m Volume (acle-ft) • 11.63 * 513.03 * 19.13 `
* C & E Loss (ft) * 0.00 * Cum SA (acYes) * 4.84 * 94.95 * 5.07 *
+r:R+Rx�wiww+++:+.«xtr+x+<t3+.�.kxxr�+++++..�+xxx:i+Rx+r:.::t:�x++*n�«::x:+:+s++��x��+++++a�+:xi+
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile k10 year
♦�.l11lF*#fk+#4if1A#f+ii#1*h+�.VY#f#t1li{#R4#MiF'.l11:+#4#1YI}iYk+i##+fl4fef4#4#iTi!#11*R%##�l4i11R4k1#4
+ E.G. Elev (fU ` 4824.05 • Element �' Left OB * Channel * Right OB *
� Vel Head (ft) * 0.00 * wt. n-Val. " * 0.040 * 0.035 *
* W.S. Elev (ft) " 4824.05 * Reach Len. (ft) � 495.00 • 362.00 � • 362.00 *
* Cri[ W.S. (fU * 4824.02 * Flow Area (sq ft) * ' 44.57 * 0.01 *
* E.G. Slope (ft/ft) *0.000021 � Area (sq ft) * 0.02 * 54.23 * 0.07 *
* Q Total (cfs) ' 1.00 * Flow (cfs) t * 1.00 * 0.00 {
� * Top Width (ft) ' 1145.96 * Top Width (ft) ' 0.66 � ll45.00 * 0.29
Page 11
ST'VRAIN.rep .
* Vel Total (ft/s) " 0.02 * Avg. Vel. (ft/s) ' * 0.02 * 0.02 ` .
� t Max Chl �pth IfU � D.OS * Hydr. �epth (ft) * � 0.05 * 0.02 *
t Conv. Total (cEsl * 216.8 • Conv. (cfs) ' * 216.7 * 0.0 �
� Length Wtd. (ft) * 362.D0 '� Wetted Pei. (£[) � ' 947.00 * 0.30 *
* Min Ch E1 (fU ' 4824.00 * Shear (lb/sq f[) * * 0.00 * 0.00 *
* Alpha * 1.00 * Stream Power (lb/ft s) * " 0.00 * 0.00 '
* Frctn Loss (fU * 0.02 * Cum Volume (acre-ft) * 0.03 • 18.93 ' 0.58 '
* C 6 E Loss (ft) ' 0.00 * Cum SA (aCies) * 0.04 • 90.11 * 0.06 *
�r++++«+i�ir++tai+x=+++�x...:t:�r:..i..ix+w�r«��rRrrRxwxRwr+w�xxxwxxrwxxx.x:.x:::x:��a+rxx+x,:::
warning: The conveyance ra[io (ups[ream conveyance divided by downstream conveyance) is less than
0.7 or greater ihan 1.4. This may indicate the need for additional cross sections.
No[e: Multiple critical dep[hs were found at this location. The critical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION OUTPUT PYofile q50 yeaT
•�.rt*�.F+xiw�x+i.F�a«.+.x.�+�.r.:a::+:t+t+xr+�+x+.w+s.r:.+�x�....r.+.:�a,t»xwrxw.r:rr+xx:txw.++..+
* E.G. Elev (fU * 4824.65 � Elemen[ + Lef[ OH * Channel * Right OB '
* Vel Read (fU • 0.00 * Wt. n-Val. * * 0.040 * 0.035 '
� W.S. Elev (fU * 4824.65 • ReaCh Len. (fU • 495.00 ' 362.00 • 362.00 '
+ CYit W.5. (ft) ' 4824.10 ' Flow Area (Sq fU ' ' 613.86 ' 1.31 �
" E.G. Slope (ft/fU +0.000113 " AYea (Sq ft) * 2.98 * 746.93 * 1.31 *
* Q Total (cfs) k 182.70 * Flow (cfs) * * 182.42 * 0.26 `
* Top Width (fU * ll56.16 • Top Width (ft) ' 9.13 " ll45.00 * 4.02 '
* Vel Total (Et/s) * 0.30 * Avg. Vel. (ft/s) * * 0.30 ' 0.21 t
' Max Chl Dpth (ft) ' 0.65 • Hydr. Depth (ft) ' ' 0.65 + 0.33 *
3 Conv. Total (cfs) * 77178.3 w Conv. (cfs) ' * 17152.2 * 26.2 '�
• Length W[d. (ft) ' 362.00 • Wetted Pei. (ft) * • 941.00 * 4.08 '
` Min Ch E1 (ft) ' 9824.00 * Shear (lb/sq ft) * ' 0.00 * 0.00 *
* Alpha ' 1.00 * Stream Power (lb/ft s) * � 0.00 ` 0.00 *
* Frc[n Loss (ft) * 0.08 * Cum Volume (acre-ft) * 0.2"/ * 84.84 * 1.59 •
' C 5 E Loss (ft) + 0.00 * Cum SA (acresl * 0.56 * 90.88 * 0.83 *
.::x:::.::�«+s:t::�tta+ri+x���x.rw«r:.+«x+:..ti:+�:��.+t:tttaa++x�+*+rFvt+�++.�.+xx.�r:.xw..N+:+x.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sec[ions.
Note: Multiple critical depths were found at this location. 'rhe critical depth with the lowest,
valid,
water surface was used.
� CROSS SECTION
RIVER: St. Vrain River
REACH: E%ISTING LAKES RS: 69589
INPUT
Description: This cross-section shows the proposed spillway between the smaller
upstream lake and the downstream 'big' lake. The spillway will
have a weir elevation of 4824.0.
Station Elevation Data num= 18
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
T[++ti4tlt4h4#ifil4+ikil44ii+k##ih*kkf#Mf'.Fh!£4fYtikitk#fit+1#ii#k###F1Y#iiFi##ik
2"]5 4862 355 4858 445 4842 547 4824 553 4823
776 4810 864 4810 943 4810 1183 4822 1284 4828
1336 4819 1403 4810 1609 4810 1652 4810 1809 4810
1892 4810 1962 4824 1987 4829
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
•R1:11:'.lRfikl:lt:!#ltitRf#lAhifl+Ftfv�#��.tk#4�.lkii##fi#₹
2�5 .035 547 .045 19B"] .035
aank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
547 1987 275 275 275 .3 .5
Ineffective Flow num= 1
Sta L S[a R Elev Permanent
2'IS 1420 4826 F
Blocked Obstructions num= 1
Sta L Sta R Elev
a+..+.w«.............«.k
275 1987 4824
Page 12
STVRAIN.rep
, CROSS SECTION OUTPUT Profile #100 year
. ��tr:r:rr+.axwwx��:tttw;+xri.:+.�«+.xa::x�:Rv+:+a:+�ar::::+++t��x::.i::���r:r�Fr++:�t++wwRwxwxr
* E.G. Elev (ft) " 4825.28 * Element * Left OB * Channel * Righ[ OB *
t Vel Head (ft) * 0.01 * Wt. n-Val. k + 0.045 * '
* W.S. Elev (ft) � 4825.27 * Reach Len. (ft) * 275.00 * 275.00 � 275.00 *
* Crit W.S. (ft) • 4824.35 R Plow Area (sq ft) t � 689.97 * '
* E.G. Slope (ft/ft) �0.000592 i Area (sq ft) + 4.54 • 1698.50 ` *
� Q To[al (cfs) • 645.94 * Flow (cfs) • • 645.94 * •
* Top Width (fU ' 1366.6� * Top Width (ft) * 7.17 ' 1359.50 * -
• VE1 Total (ft/5) * 0.94 ' Avg. Vel. (tt/s) * * 0.94 * '
' Max Chl Dpth (fU * 1.27 � Hydr. Depth (ft) • * 1.26 � +
� Conv. Total (cfs) * 26550.7 • Cmv. (cfs) R * 26550.7 ' *
• Length Wtd. (E[) * 275.00 * Wetted Per. (ft) * • 548.45 * *
' Min Ch E1 (ft) * 4824.00 * Shear (16/sq fU * * 0.05 x *
� Alpha � 1.00 k Stream Power (lb/ft s) • * 0.04 * *
* Frctn Loss (f[) * ' Cum Volume (acre-Et) * 0.85 * 142.29 ` 2.94 *
* C & E Loss (ft) * * Cum SA (acres) • 0.99 * 81.25 * 1.63 '
f�i+#rtYIkMY#rtMiWi#iiit44t�fi�i�tkttf4+t[lifit#4Yti{FitAtfF#�iklkf�l+#++F4ii*1Mi#Y#iitfif#t1t#!f
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OIITPUT Profile p500 year
..++.+.+..+...++...+..«.:.:..:«.:+.....a.....+.....+..:...w+....+..x.x+w•.:+�x+..:«..:..e.:.++.
• E.G. Elev (ft) ` 4828.74 * Elemen[ W Left OB k Channel * Right OB '
i Vel Head (ft) * 0.01 * W[. n-Val. T 0.035 • 0.045 * R
' W.S. Elev (ft) * 4828.�3 • Reach Len. (ft) * 275.00 t 2�5.00 • 275.00 '
* Crit W.S. (ft) * 4825.62 t Flow Area (sq ft) • 63.34 * 6565.16 F *
* E.G Slope (ft/£t) *�.Oo0ll0 * Area (sq ft) * 63.34 • 6565.16 * *
* Q Total (cfs) * 6291.08 * Flow (cfs) * 49.45 * 6241.63 * *
r Top Width (ft) � 1465.43 * Top Width (ft) t 26.79 * 1438.64 * �
* Ve1 Total (ft/s) � 0.95 * Avg. Vel. (ft/s) * 0.�8 * 0.95 ' *
• Max Chl Dpth (fU " 4.�3 * Hydr. Depth (ft) • 2.36 * 4.56 � t
' Conv. Total (cfs) �600891.8 • Conv. (cfs) * 4�23.3 *596168.5 * *
' Length wtd. (fU ' 275.00 ' Wetted Per. (ft) * 27.21 * 1439.57 " '
+ Min Ch E1 (ft) � 4624.00 3 Shear (lb/sq ft) • 0.02 * 0.03 * Y
/ ' Alpha " 1.00 " Stream Power (lb/ft s) * 0.01 • 0.03 * *
+ Frctn Loss (ft) * * Cum Volume (acre-ft) * 30.23 * 463.08 * 18.83 •
* C 6 E Loss (ft) * ' Cum SA (acres) * 4.16 • 84.21 • 4.94 '
rx:Rxwt*+««x.++i�+t:.:.:.t..«..:+:,:..::iii+aaxawx..xxx.++.:.xx:��i+���+i+���w�+x�rvv+Kix��xa�
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT ProEile k10 year
•*�rrt+x+.ir+�r�:..x::,..:...:::�.t��.wxi.i..t++arFw..x..�+.r+r:��+��a+�it+ri.ax�iw.�:.x��x:�xix
* E.G. Elev (£t) • 4824.02 ' Element ' Left OB * Channel • Right OB •
' Vel Head (ft) * 0.00 * Wt. n-Val. ' ' 0.045 * *
* W.S. Elev (ft) * 4824.02 * ReaCh Len. (£t) * 275.00 • 275.00 � 275.00 •
* Crit W.5. (fU * 4824.02 * Flow Area (sq fU * * 11.38 * *
* E.G. Slope (ft/ft) *0.001223 • AYea (sq ft) ' �.00 * 27.82 * '
• Q Total (cfs) R 1.00 • Flow (cfs) * * 1.00 • *
' Top Width (ft) " 1325.25 * Top Width (ft) * 0.12 • 1325.14 * *
* Vel Total (ft/s) � 0.09 • Avg. Vel. (ft/s) * * 0.09 * *
* Max Chl Dpth (ft) * 0.02 � Hydr. Depth (fU * ' 0.02 * *
' Conv. Total (cfs) ' 28.6 * Conv. (c£s) " ` 28.6 * �
* Length Wtd. (ft) ` 2�5.00 ` Wetted Per. (ft) * R 542.71 ' `
* Min Ch E1 (ft) * 4824.00 ` Sheaz (lh/sq ft) * * 0.00 ' '
* Alpha R 1.0o k Stream Power (lb/ft s) • ' 0.00 * *
* Frctn Loss (ft) • ' Cum Volume (acte-fU * 0.03 * 18.39 * 0.58 '
* C & E Loss (ft) * * Cum SA (acres) ' 0.03 * 79.85 * 0.06 *
♦x.««t.«+..a.x+:.w.x.::..:.:x«i..«.:...a...x.:+.se.x...x.+:.•++.e......�.aa.+e.........xa..t..r
Warning: Critical depth in the cross section upstream of the inline structure produced too much flow past
the inline structuze. This means there is not a valid subcritical answer. The upstream cross
section defaulted to critical depth.
CROSS SECTION OUTPUT Profile p50 year
•ax�txk�w�*�*rx�wxa.ww.x::kra+iwr.���+++.xx+��eiri�++���+t��y�ia+r++aa�r���+i�k+a�i�++k��i�*+r•
� E.G. Elev (ft) ' 4824.57 * Element � Left OB * Channel ' Right OH '
* Vel Head (fU * 0.01 k wt. n-Val. ' * 0.045 " *
Page 13
STVRAIN.rep
* W.S. Elev (ft) ' 4824.56 * Reach Len. (ft) * 275.00 * 275.00 ' 275.00 *
' ' Crit W.S. (ft) • 4824.16 R Flow Area (sq fU " * 305.13 * *
' E.G. Slope (ft/ft) +0.000�12 ' Area (sq fU * 0.89 � 748.12 * *
• Q Total (cfs) " 182.70 ` Flow (cfs) * * 182.70 ' `
* Top Width (fU ' 1343.24 • Top width (fU * 3.18 * 1340.06 * •
k Vel Total (ft/s) * 0.60 ' Avg. Vel. (ft/s) * " 0.60 ' '
' Max Chl Dpth (ft) � 0.56 ' Hydr. Depth (fU ` w 0.56 * '
* Conv. Total (Cfs) • 6845.6 * Conv. (cfs) * * 6845.6 ' '
` Length Wtd. (ft) * 275.00 " Wetted Per. (ft) • * 544.86 * *
+ Min Ch E1 (fU • 4824.00 * Shear (lb/sq fU * * 0.02 r �
• Alpha • 1.00 ' Stream Power (lb/f[ s) r * 0.01 � "
t Frctn Loss (ft) � * Cum Volume (acre-ft) * 0.25 * 78.63 * 1.59 •
� C & E Loss (ft) • ' Cum SA (acres) ` 0.49 * B0.55 * 0.82 t
#xt4}fi+ihi4k*#Y#+ihiti*i14*kWMWIf#ti444X�#W*%!R#FAA�Fltt{tt�tkii#ii#�+t!#k*fI!#1f#i�#4iWYYY#!4
Note: Multiple critical depths were found at this location. The critical depih with the lowest,
valid,
energy was used.
INLINE STRUCTURE ' �
RIVER: St. Vrain AiveY
REACH: EXISTING LAKES RS: 69479 �
INPUT
Description: This inline weir models the proposed spillway between ihe two
lakes. The weir elevation ot this spillway is proposed at 4824.
Distance from Upstream XS = 143
Deck/Roadway Width = 31
Weir Coefficient = 2.63
Weir Embankment Coordinates num = 13
Sta Elev S[a Elev Sta Elev Sta Elev Sta Elev
..::x...+«.++....+++.++.....++x:..+......+x.»:.<:�...a....:......+w�.�xw«�...++.
445 4855 557 4847 776 4830 943 4830 1183 4830
1284 4835 1336 4935 1403 4830 1609 4827 1652 4824
1809 4824 1845 4827 2009 4828
Upstream Embankment side slope = 4 horiz. to 1.0 vertical
�ownstieam Embankment side slope = 4 horiz. to 1.0 vertical
Maximum allowable submergence for weir flow = .95
Elevation at which weir flow begins =
Weir crest shape = Broad Crested
INLINE STRUCTURE OUTPUT Profile #100 year Inl StruCt:
£'R4'k'�#{#fi#1#fii*#4##*!*tihki+#4i*i4i:l1#Yiiktl�.F*k1:fYA114�k1ti#4f₹44#4ii1Ylk
R E.G. Elev (ft) " 4825.28 � Q Gates (cfs) ' R
• W.S. Elev (ft) * 4825.27 * Q Gate Group (cEs) • 4824.16 *
* Q Total (cfs� * 645.94 * Gate Open Ht (ftl � 2.00 �
* Q WeiY (Cfs) R 645.94 * Gate #0pen + 4824 •
* Weir £low Area (sq ft) * 222.40 * Gate Area (sq $) ' 4826.01 '
* Weir Sta Lft (ft) � 1633.66 * Gate Submerg * *
* Weir Sta Agt (ft) ` 1824.35 * Gate Invert (ft) * 4824.23 *
* Weir Max Depth (ft) * 1.28 * • •
* weir Avg Depth (ft) ' 1.17 * * *
� Weir Submerg * 0.00 * * *
* Min E1 Weir Flow (ft) * 4824.01 * * `
* wr Top Wdth (ft) * 190.69 * * `
hhk*#*11Tht*A'.!<'.l�.t'F'.lRtffRRFRR'A�ttt�.lfz4�!-.lY:*T�l�*4++fYiiivlYh4i*YY'RfFA}/�F+f#t
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
INLINE STRUCTURE OllTPUT Profile p500 year Inl Struct:
ktii₹#i*I11:11f1:TfRRF'.l�1RfAIRAMttiiii{i1#*Y:FAhlFM#*#ilifRiTiR'.lY�t[+FRIYiAi1•
* E.G. Elev (ft) * 4828 J4 * Q Gates (cfs) * •
* W.S. Elev (ft) • 4828 J3 ; Q Gate Group (cfs) ` �.00 *
* Q Total (cfs) * 6291.08 ' GaCe Open Ht (ft) * 0.00 *
* Q Weir (cfs) * 6291.OB ' Gate pOpen * 0 *
i Weir Flow Area (sq ft) • 1267.64 * Gate Area (sq ft) i 4825.44 t
� Weir Sta Lft (ft) * 1489.37 � Gate Submerg • «
* weir Sta Rgt (ft) • 1985.�1 � Gate Invert (ft) * *
Page 14
� STVRAIN.rep .
� Weir Max �epth (ft) * 4.74 * " �
' * Weir Avg Depth (ft) * 2.59 � • *
* weir Submerg • 0.34 * � *
"' Min E1 Weir F1ow (fU * 4824.01 * * "'
* Wr Top Wdth (fU ' 496.34 * � *
1rt+�Rliiiit4�f�Fft�.tthfSRAA£k1:hlR#MR'.lRk}+TFftfRRTRT�i;ttARRt#'.lR1flA4'.!R}RT}k
No[e: Multiple critical depths were found at ihis location. The critical dep[h with the lowest,
valid,
energy was used.
INLINE STRUCTURE WTPUT Profile #10 year Inl Strvct:
+....a.+.....«.�x.+.xx...wxw.a..xa..•.....+...+....::<....+...:++....+..•
* E.G. Elev (f[) • 4824.02 t Q Gates (Cfs) R �
* W.S. Elev (ft) * 4824.02 * Q Gate Group (cfs) ' 0.00 *
• Q Total (cEs) R 1.00 ' Gate Open Nt (f[) * 0.00 '�
* Q Weir (cfsl * 1.00 • Gate #Open * 0 •
* Weir Plow Area (sq ft) * 3.30 ` Gate Area (sq ft) � 4841.06 *
� Weir Sta Lft (ft) * 1651 JO * Gate Submerg * *
* Weir Sta Rgt (ft) * 1809.25 * Ga[e Invert (ft) * *
' Weir Max Depth (fU • o.02 * * *
* weir Avg �epth (fU * 0.02 � * *
# Weir Submerg * o.00 * * *
• Min E1 Weir Flow (fU • 4824.01 + * �
* wr Tap wdth (fU • 157.55 * ` *
x.xw:«x+.•�•x�«++�.«�..a«x++a....+...r....+:.x+«x.+.+....w+s++......t.�x.•
Warning: Czitical depth in the cross section upstream of [he inline structure produced too much flow past
the inline structure. This means there is not a valid subcritical answer. The upstzeam cross
section defaulted to critical depth.
INLINE STRUCTURE OUTPQT Pzofile #50 year Inl Stiuc[:
#iYk#W'F##*#Y'F#fifh444+RfARItfIh*I#R+YY#4ti%fA##�ff#4�41k4+ti44YfifSlt}kRlf
• E.G. Elev (ft) � 4824.57 * Q Gates (cfs) * *
• W.5. Elev (ftl * 4824.56 * Q Gate Group (cfs) * 0.00 *
' Q Total (cfs) * 182.70 * Gate Open Ht (ft) • 0.00 *
- * Q weir (cfs) • 182.70 * Gate Nopen * o *
* Weir Flow Area (sq fU • 93.23 R Ga[e Area (sq fU * 4824.06 t
* Weii Sta Lft (ftl " 1643.88 * Gate Submerg * *
� ' Weis Sta Rgt (f[) � 1815.80 * Gate Invert (ft) ' *
* Weir Max ➢epth (ft) * 0.57 " • *
* Weir Avg Depth (f[) * 0.54 � ' *
^ weir Submerg * 0.00 * * •
* Min E1 Weir Flaw (ft) * 4824.01 " ' '
* Wr Top Wdth (ft) * 171.93 ' * '
#i1i4+k�.Y+rt'khkR4fth+kfttF4k##YM#+�iftt4'F1#ft4Ai:hFRlkf}f�tt4YfF1Y1h4#l�+iF++
Note: Multiple critical depths were found at this location. The critical dep[h with the lowest,
valid,
energy was used.
CAOSS SECTION
RIVER: St. Vrain River �
REACH: EXISTING LAKES RS: 69314
INPUT
Description: This cross-section shows the proposed spillway between the smaller
upstream lake and the downstream 'big' lake. The spillway will
have a weir elevation of 4824.0.
Station Eleva[ion Data num= 18
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
wx.k+r++xxx+ta++xtk.xxxaxi.i+++�k*t�•it+�+xt++tW�rr:w�F+:+a++t��rRi�3i+r�iiwR�i�♦
�75 4864 355 4854 445 4832.5 512 4879.7 553 4812
776 4812 864 4809 943 4825 1183 4810 7284 4830
1336 4810 1403 4810 1609 4810 1652 4810 1809 4810
1892 4810 1943 4819.7 1987 4828
Manning�s n Values num= 3
Sta n Val Sta n Val Sta n Val
•i#in*I}14f�ii#Fi#iiWl+i##nillhkli4iff!#iiifAll!#
275 .035 512 .045 1943 .035
Page 15
STVRAIN.rep
,l Hank Sta: Left Right Lengths: Left Channel Righ[ Coeff Contr. Espan.
512 1943 319 516 516 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
275 14�0 4826 F
Blocked Obstructions num= 1
Sta L Sta R Elev
.+.x�:..xx..::..«+.xr.«x
275 198"J 4819.�
CAOSS SECTION OUTPUT Profile #100 year
�<+ir.��x.w�+*r.r+x+�a.irwxv..*r�xx�+.�:�+++++aaixr,.xrx.x.:«+:iw+�+i.w«r++rw.x��.w��+�+x�r.air++*•
• E.G. EleV (ft) * 4821.75 * Element • Lef[ OB * Channel ` Right OB t
• Vel Head (ftl * 0.01 * Wt. n-Val. * ` 0.045 * 0.035 *
t W.S. Elev (ft) • 4821.75 t Reach Len. (fU • 319.00 * 516.00 * 516.00 *
* Cri[ W.S. (fU �' 4820.07 * Flow Area (sq ft) * • 1071.28 t 11.12 *
* E.G. Slope (ft/ft) *0.000126 * Area (sq ft) * 10.98 ' 2747.81 • 11.12 •
• Q Total (cfs) * 645.94 * Flow (cfs) • • 640.62 • 5.32 *
* Top Width (fU � 1384.50 ' TOp Width (ft) * 10 J2 * 1362.92 • 10.86 '
• vel Total (ft/s) � 0.60 * Avg. Vel. (ft/s) * * 0.60 * 0.48 *
* Max Chl Dpth (ft) * 2.o5 * Hydr. Depth (ft1 " ` 2.05 � 1.02 * �
* Conv. Total (cfs) • 57528.4 * Conv. (cfs) + * 57054.2 R 474.2 *
� Length Wtd. (ftl * 516.00 * Wetted Per. (ft) R * 523.00 " 11.05 *
* Min Ch E1 (ftl * 4819.�0 * Shear (lb/sq fU * • 0.02 • 0.01 *
* Alpha * 1.00 " Stream Power (lb/ft s) * ' 0.01 * 0.00 *
� Fmtn Loss fft) * 0.0� k Cum Volume (acre-ft) * 0.80 * 128.26 ' 2.90 *
• C & E Loss (fU * 0.00 "' Cum SA (aCres) ' 0.94 * 72.65 ' 1.60 *
.:...+........x+..x::x...+x.x+.x...+...xxxxxx++::..........x..:...+.....++..«..+...�.:.::+:...++
Warning: Divided flow computed for this cross-section.
CROSS SECTION OUTPUT Profile #500 year
.w«.:..a+:a+a...+....a..++...+..++..x+<.+++.+.++.....x..+.++++....x..+xx++:.x�•:.....++..++.w.•
* E.G. Elev (ft) * 4826.15 * Element * Left OH * Channel � Aight OB *
* Vel Head (ft) * 0.01 * Wt. n-Val. � 0.035 * 0.045 + 0.035 *
• W.5. Elev (ft) * 4826.14 • Reach Len. (fU * 319.00 a 516.00 ' 516.0� •
* Cri[ W.S (ft) '� 4821.36 * Flow Area (sq fU * 108.59 * 8923.61 � 109.98 *
� i E.G. Slope (ft/ft) "'0.000038 * Area (sq fU * 108.59 ` 8923.61 ' 109.98 *
• Q To[al (cfs) � 6291.08 * Flow (cfsl ' 61.40 * 6167.48 � 62.20 t
* Top Width (ft) k 1498.87 * TOp Width (ft) ' 33.72 * 1431.00 '" 34.15 �
* Vel Total (ft/s) * 0.69 * Avg. Vel. (f[/s) * 0.57 * 0.69 " 0.57 +
* Max Chl Dpth (ft) + 6.44 * Hydr. Depth (ft) * 3.22 * 6.24 ' 3.22 �
* Conv. Total (cfs) x1017967.0 * Conv. (cfs) * 9935.2 �997966.4 * 10065.1 *
* Length Wtd. (ft) • 510.73 * Wetted Per. (ft) R 34.33 * 1431.70 * 34.75 *
* Min Ch E1 (ft) ` 4819 JO • Sheaz Qb/sq £t) * 0.01 • 0.01 • 0.01 �
* Alpha * 1.00 * Siream Power (lb/£t s) k 0.00 * 0.01 " 0.00 *
• Pzctn Loss (ft) ' 0.04 * Cum Volume (acre-ft) ` 9.69 * 914.18 ' 16.49 •
" C & E Loss (fU * 0.01 * Cum SA (acres) * 3.97 * '/5.15 ' 4.84 *
k�.l4tti+itt44�+hi41:*4-.F4iY**%*h'R+rtM+tit4iiti4Y₹+#4fR>�[�.lt�ff#ii#iiY1T'RT1FF'.!#f1}!*ff#!1R*:!4*A}*#k#f
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyancel is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #10 year
Tlfetll:tk*f'.!!t#*ki#4#f*:ti'k##iF�.l+R1R�.l11t44#*k4:l4Rf+#hiMA'.l11:#'.!*{+i4i1Y#4'R#f�AM11h4ffllfl4lT*f4l4#iF
* E.G. Elev (fU • 4819.80 * Element * Left OB * Channel + Right OH *
* Vel Head (ft) * 0.00 • Wt. n-Val. * ' �.045 • 0.035 *
* W.S. Elev (ft) � 4819.80 * Reach Len. (ft) * 319.00 • 516.00 * 516.00 *
" Crit w.S. (£U ` 4819.72 * Flow Area (sq fU " ' 50.31 ' 0.02 +
* E.G. Slope (ft/fU *0.000o0B + Area (sq ft) * 0.02 * 127.07 t 0.02 "
• Q Total (cfs) * 1.00 * Flow (cfs) ' • 1.00 * 0.00 *
• Top Width (ft) * 1323.06 * Top Width (ft) ` 0.50 * 1322.05 * 0.51 "'
t Vel Total (ft/s) * 0.02 * Avg. Vel. (f[/s) * * 0.02 * 0.02 *
* Max Chl Dpth Ift) ' 0.10 * Hydr. Depth (ft) * * 0.10 * 0.05 +
* Conv. Total (cfs) ' 348.9 * Conv. (cfs) * ' 348.7 * 0.1 "
* Length Wtd. (Et) * 516.00 '" Wetted Per. (ft) * * 523.00 • 0.52 *
+ Min Ch E1 Ift) " 4819.70 k Shear (lb/sq ft) * ' 0.00 � 0.00 *
+ Alpha � 1.00 * Stream Power (lb/ft s) * * 0.00 * 0.00 *
• Fzctn Loss (ft) • 0.00 * Cum Volume (acre-fU * 0.03 * 17.90 ` 0.58 "
, * C 6 E Loss (ft) ` 0.00 • Cum SA (acresl * 0.03 * 71.49 * 0.06 +
Page 16
STVRAIN.rep
� ♦«+�ra�taxFa�x�.+arrawwrx.«:�::i�iri.i:�+�w+«a+�t�i�:a++.�rw«:�a:,�tr:xw:�x+i:+:wy�rx.xa���:���
I Warning: Divided flow computed for this cross-sec[ion.
CROSS SECTION OUTPUT Profile q50 year
♦fYRfikMkfiik+���yffft�+f1444tYfM#If4tFYi#�Y111kYii+ifFftiiiik#₹n1#RR+fki##k#1txx�ttii4xikk4µM#k
" E.G. Elev (fU ' 4820.7B • Element ` Left OB t Channel * Right OB *
• Vel Head (fU * 0.00 * W[. n-Val. ' * 0.045 � 0.035 t
• W.S. Elev (ft) * 4820.78 ' Reach Len. (ft) ' 319.00 ' A6.0o * 516.00 •
t Crit W.5. (ft) * 4819.85 + Plow Area Isq fU ' ' 563.86 ' 3.08 *
• E.G. Slope (f[/fU *O.OODOB6 * Area (sq ft) • 3.04 * 1435.33 • 3.09 *
+ Q Total (cfs) " 182.70 r Flow (cfs) " * 181.91 ' 0.80 �
' Top Width �fU * 1353.97 * Top Width (ft1 * 5.64 * 1342.61 * 5.72 *
� Ve1 Total (£t/s) * 0.32 * Avg. Vel. (ft/5) * * 0.32 � 0.26 *
* Max Chl �pth (ft) * 1.08 x Hydr. Depth (ft) � ` 1.08 * 0.54 •
* Conv. Total (cfs) * 19662.0 f Conv. (cfs) ' * 19576.4 � 85.6 *
• Lengih wtd. (ft) * 516.00 * Wetted Per. (ft) * * 523.00 � 5.82 *
* Min Ch E1 (ft) * 4819.70 * Shear (lb/sq R) ' * 0.01 * 0.00 •
' Alpha ' 1.00 " Stream Power (lb/ft s) ' * 0.00 * 0.00 '
• Frctn Loss (ft) * 0.04 ' Cum Volume (acYe-ft) * 0.23 * 71.74 * 1.58 *
* C � E Loss (ft) * 0.00 * Cum SA (aCres) * 0.46 � �2.08 * 0.80 "
f1i4#tfKRRtitkirlii*i4itti1�t44�1x#t###Y#xR!#ii##i#fRAtkliiYl}tii#k1l�x�ltiikii#YY}t4i#W+4Rff*#
Warning: Divided flow computed for this cross-section.
CROSS SECTION
RIVER: St. Vrain River
REACH: EXISTING LAKES RS: 68798
INPUT
Description: The water will pond to 4819.7 in the lakes upstream of [he
proposed spillway at czoss-section 64�15 as this is the proposed
weir elevation.
Station Elevation Data num= 18
Sta EleV Sta Elev S[a Elev Sta Elev Sta Elev
� ***x*459tx**4860:•'{*568t;4847{9::t:r620;*4845:5++;'*728*'*�4828"*4f796*;�R4825
868 4819.7 975 4819 1073 4828 1201 4836 1313 4828
1418 4820 1455 4810 1573 4809 1773 4809 1932 4810
1972 4819.7 1973 4820 2052 4826
Manning's n Values num= 3
Sta n Val Sta n val Sta n Val
.............+...:...:.+.....+.:.:.++.:..+..::..
459 .035 868 .04 1972 .035
Hank Sta: Left Righ[ Lengths: Left Channel Right Coeff Con[r. Ezpan.
868 19]2 683 1220 1112 .3 �5
Ineffective Flow num= 1
S[a L Sta R Elev Permanent
459 1455 4823 F
Blocked Obstructions num= 1
Sta L Sta R Elev
x:.:wt+rrx+:.ry+w.xt�++x
459 2200 4819.7
CR�SS SECTION OU2PUT Profile k100 year
•4fx}#n*++1l+i+RiRi4+Y�Rti4ff*�iiY111i�f4fi##Ihitf4l�Ri#iA4�t+#!F1}A#ihRR£x4}kY4R��t#ilxlfiSlYM
* E.G. Elev (fU • 4821.68 * Element ' Left OH R Channel ` Right OH •
* Vel Head (fU • 0.01 • Wt. n-Val. ' * 0.040 * 0.035 ;
k W.S. Elev (ft) • 4821.68 ' Reach Len. (fU " 683.00 • 7220.00 * 1112.00
t Crit W.S. (ft) ' 4820.09 x Flow Area Isq ft) * * 7021.63 * 20.32 '
* E.G. Slope (ft/ft) *0.000144 * Area (sq ft) * 26.52 * 1360.79 * 2�.32 '
+ Q To[al (cfs) * 726.59 ' Flow (cfs) + R 717.10 k 9.49 *
^ Top Wid[h IfU • 762.06 • Top Width (ft) * 26.85 * 712.14 * 23.0� *
* Vel To[al (ft/s) ` o JO * Avg. Vel. (ft/s) 0.70 0.47 i
• Max Chl llpth (fU * 1.98 * Hydr. Depth (fU * * 1.98 * 0.88
* Conv. Total (cfs) R 60553.3 + Conv. (cfs) ' 59762.8 790.5 *
* Lengih Wtd. (ft) ' 121b.07 * Wetted Per. (ft) i + 517.0o i 23.16 *
" Min Ch E1 (ft) ' 4819.70 " Shear (lb/sq ft) " 0.02 * 0.01
* Alpha ' 1.01 + Siream Power (lb/ft s) ` " o.01 0.00 +
,� * Frctn Loss (ft) ' 0.29 • Cum Volume (acre-ft) ' 0.67 " 103.92 * 2.�2 *
Page 17
STVRAIN.rep
' * C � E Loss (ft) * 0.00 * Cum SA (acres) * 0.80 • 60.36 t 1.40 * �
.:..�..,:x:.:...+.......++......:..».xx.x�:w+.+++..:xx++.++......�,++.+..+wx..+..x.«+.rr:....+.
Warning: Divided flow computed for this cross-section.
warning: The conveyance ratio (upstzeam conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The cri[ical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPOT Profile #500 year
:+................:,....:....+.+.++:+.....x•:�x.:�:.+.:+.:++.:....:.:+....:a.x.:x...x.+.++i....
* E.G. Elev (ft) ' 4826.10 * Elemen[ " Left OB " Channel * Right OB *
^ Vel Head (fU * 0.04 "' W[. n-Val. * 0.035 * 0.040 �' 0.035 *
* W.5. Elev (fU * 4826.06 r Reach Len. (ft) * 683.00 � 1220.00 � 1112.00 *
* Ciit W.5. (ft) ` 4821.68 * Flow Area (sq fU ' 279 J6 * 4712.61 • 247.88 '
* E.G. Slope (ft/ft) +0.000184 * AYea (Sq ft) ' 279.76 ? 4912.61 " 247.88 *
* Q Total (cfs) ' 82�1.30 " Flow (cfs) `" 328.53 R 7639.89 * 302.88 *
* Tap Width (ft) * 993.40 • Top Width (fU * 96.01 " 817.39 ' 80.00 *
* Vel Total (ft/s) * 1.58 * Avg. Vel. (ft/s) * l.11 * 1.62 � 1.22 *
` Max Chl ➢pth (ft) '�' 6.36 i Hydr. Depth (ft) * 2.91 * 5.7� ' 3.10 '
* Conv. Total (cfs) *609124.8 R Conv. (cfs) * 24194.2 *562625.7 * 22304.8 '
* Length Wtd. (ft) * 1197.44 * Wetted Per. (ft) * 96.22 * 817.95 � 80.33 •
• Min Ch E1 (ft1 * 4819.70 * Shear (lb/sq ft) * 0.03 * 0.07 * 0.04 *
* Alpha " 1.02 * Stream Power (lb/ft s) * 0.04 * 0.11 * 0.04 *
* Frctn Loss (ft) * 0.41 * Cum Volume (acre-fU * 8.26 ' 333.42 * 16.37 *
* C & E Loss (ft) * 0.04 " Cum SA (acres) ' 3.50 + 61.84 " 4.16 '
+.x•.�+.+>++.:,+.+....++a.+...+..«.x«..:::+++..+.+..+..•+�•«•.+.......x..xx..x+.+:..:..�.+x.x+.«•
Warning: Divided flow computed for Chis cross-section.
Warning: The cross-section end poin[s had to be extended vertically Eor the computed water surface.
warning: The conveyance zatio (upstream conveyance divided by downstream conveyancel is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The cri[ical depth with the lowest,
valid,
water surface was used.
' CROSS SECTION OUTPUT Profile #10 year
k#Rh#F%Fk#Fit*xifxiiit�t�.!#kk##M!i'RF'RR�+fti##*i:Xik+*'.!}*kiifi4i�ik#4i:#i#I4++F1hRit4kFx4##*##Y4Y1*
* E.G. Elev (fi) • 4819.79 • Element ' Left OB * Channel * Right OB *
� + Vel Head (ft) * 0.00 * Wt. n-Val. * * 0.040 * 0.035 *
� * W.S. Elev (fU '� 4819.79 * Reach Len. (ft) * 683.00 t 1220.00 � 1112.00 *
* Crit W.5. (Et) '� 4819.72 * FloW AYea (Sq ft) * ' 47.71 * 0.01 *
* E.G. Slope (ft/fU '0.000008 * Area (sq EU * 0.06 * 61.66 • 0.01 •
' Q Total lcfs) • 1.00 * Flow (cfs) * ' 1.00 * �.00 *
* Top Width (ft) * 6�0.42 ' Top Width (ft) * 1.25 * 668.86 * 0.31 *
* Vel Total (ft/s) * 0.02 • Avg. Vel. (ft/s) * * 0.02 "' 0.01 *
� Max Chl Dpth (ft) ' 0.09 t Hydr. Depth (ft) * * 0.09 * 0.05 *
t Conv. Total (cfs) • 362.0 * Conv. (cfsl ` " 361.9 * 0.1 *
* Length Wtd. (Et) * 1219.83 * Wetted Per. (ft) " • 517.00 * 0.32 •
* Min Ch E1 (ft) ' 4819.']0 * Shear Qb/sq ft) * " 0.00 * 0.00 *
" Alpha * 1.00 * Stream Power Qb/ft s) ' • 0.00 * 0.00 '
* Frctn Loss (fU * 0.02 +• Nm Volume (acre-ft) • 0.03 * 16.79 * 0.58 '
* C S E Loss (ft) * 0.00 * Cum SA (actes) ' 0.03 * 59.70 * 0.05 *
•��wx�.�xt:,�.�+.::w++x:��+++�+x�+Fr.�xrr:wx:+�:w��ry�t<rrr.rrxr:xxkx:�i+*i++�t�++a+rx.rwrx:rrrr�r
Warning: Divided £low computed for this cross-section.
Warning: The conveyance ratio lupstream conveyance divided by downstream conveyance) is less [han
0.7 or greater than 1.4. This may indicate the need for additional czoss sections. �
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTP[1T PYOfile #50 year
.�kt�tr.:a.ta�«ik.�xk.t.+.+�.w..+..:k.++t+�+�x�x.+w��k::.++.R++��:axi+�r�+a+.+t+:��.air+a+a+�++
* E.G. Elev (ft) * 4820 J4 • Element * Left OB • Channel * Right OH *
* Vel Head (ft) * o.00 * Wt. n-Val. * � o.040 * 0.035 *
• W.S. Elev (fU * 4820.74 * Reach Len. (fU * 663.00 "' 1220.00 * 1112.00 *
* Crit W.S. (ft) * 4819.86 { Flow Area (sq fU * * 535.43 * 4.45 "
* E.G. Slope (ft/ft) *0.0�0080 + Area (sq ft) "' �.29 * 9G1.68 * 4.45 *
* Q Total (cfs) ' 182.70 i Flow (cfs) * ' 181.77 " 0.94 �
* Top Width �ft) * "114.32 * Top Width (ft) • 14.07 � 689.56 * 10.69 *
* Vel Total (ft/s) * 0.34 • Avg. Vel. (ft/s) ' • 0.34 * 0.21 •
* Max Chl Dpth (fU * 1.04 * Hydr. Depth (ft) • ' 1.04 * 0.42 +
Page 16
� STVRAIN.rep
; * Conv. Total (cfs) • 20464.8 • Conv. (cfs) ' � 20360.0 * 104.9 *
* Length Wtd. IfU * 1218.02 k Wetted Per. (fU * * 517.00 * 10 J6 '
* Min Ch E1 (fU * 4619.70 � Shear (lb/sq ft) ` '" 0.01 * 0.00 *
* Alpha * 1.00 R Stream Power (lb/ft s) * * 0.00 "' 0.00 *
* Frctn Loss (fU ' 0.16 * Cum Volume (acre-ft) * 0.20 + 59.08 * 1.53 *
* C 6 E Loss Ift) * 0.00 ' Cum SA (acies) ` 0.39 • 60.05 * 0 JO *
4*f'.lRiww�.lf�.lflYfFlh+wflfttktAs�tT'.!R}vlfAif�f#t�fitRfttiftf4Y444fhR1:i4i4i1k#Mittll£tR�1R�t11itMi#Y
Warning: Divided flow computed for this cross-section. �
Warning: The conveyance raCio (upstream conveyance divided by downstream conveyance) is less Lhan
0.7 or greater Chan 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found ac this locatio�. The critical depth with the lowest,
valid,
watez surface was used.
CROSS SECTION
RNER: St. Vrai� River .
REACH: EXISTING LAKES AS: 67578
INPUT
Descrip[ion: The water will pond to 4819 J in the lakes upstream of the
proposed spillway at cross-section 64'115 as this is the proposed
weir elevation.
Station Elevation �a[a num= 20
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
1Yit4nY11ff11ii4tF1R1tY1#'Fni:fi##YtYri:i+114k}4#k{SYit#t4iiklifitf£1T#fA1Af#f1f1la
1150 4860.5 1200 9855 1288 4844 1302 4844 1395 4845
1442 4845 1464 4844.2 1593 4834.5 1798 4830 1863 4830
1950 4826.5 1996 4826 2026 4824 2043 4819.7 2�5fl 4816
2196 4806 2380 4817 2398 4819 2413 4819.7 2528 4825.8
Manning's n Values num= 3 �
Sta n Val Sta n Val Sta n Val
....+...r<....+..t................+.....x:x+.+.:
115� .035 2043 .04 2413 .035
v 9ank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Ezpan.
2043 2413 684 810 815 .1 .3
Blocked Obstructions num= 1
Sta L Sta R Elev
a.�t:�Ft.at�tx+a..x..r.+
1150 2600 9819.7
CROSS SECTION OUTPUT Profile #100 year
4iR4iflr+4iii4h4i#t4liii#Y+%hFMiR1M�.l�iikt4lk*I1k'RfRRlhFf4ffft�4f4iFft!lkii4ii�ff�t1#i#4i't#tiiki4
* E.G. Elev Iftl * 4821.39 • Element ' Left OB * Channel " Right OB *
' Vel Head (ft) . ' 0.02 • Wt. n-Val. " 0.035 • 0.04U • 0.035 *
• W.5. Elev (fU * 4821.37 � Reach Len. (ftl ' 684.00 * B10.00 • 815.00 *
* Crit W.S. (fU * * Flow Area (sq fU ' 5.51 * 617.69 • 26.27 *
* E.G. Slope (ft/fU `0.0004"]1 * Area (Sq £t) " 5.51 * 679.69 • 26.2'1 •
" Q To[al (Cfs) ` 726.59 "' Flow (cfs) * 4.41 • 700.74 * 21.44 '
* Top Width (fU * 408.08 * Top Width (ft) * 6.60 * 370.00 ' 31.47 •
* Vel Total (ft/s) * 1.12 * Avg. Vel. (ft/s) * 0.60 * 1.13 • 0.82 •
' Max Chl Dpth IfU * 1.67 • Hydz. Depth (£t) ` 0.83 * 1.67 * O.B3 *
* Conv. Total (cfs) � 33482.3 * Conv. (cfs) * 203.1 • 32291.3 * 987.9 •
* Length Wid. IfU ' 809.45 * Wetted Per. (ft) * 6.81 � 370.00 ' 31.52 *
* Min Ch E1 (ft) ' 4819.70 * Shear (lb/sq ft) * 0.02 * 0.05 ' 0.02 k
* Alpha • 1.01 i S[ream Power (lb/ft s) * 0.02 ^ 0.06 t 0.02 t
* Frctn Loss (ft) * 0.19 " Cum Volume (acre-fU * 0.41 • 76.22 � 2.12 �
• C & E Loss (ft) ' 0.00 ' Cnm SA (acres) • 0.54 � 45.21 * 0.70 *
♦xk:��xr����r:.�.a::...t.�t:t+t.ax+.r+�,++tairx+k..�:.tit��t�++rwr:xx<r+�F.»xrxw�wix+::�:x:�s�*t�+�
warning: The conveyance ratio (upstzeam conveyance divided by downstream conveyancel is less than
0 J or greater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile #S00 year
1i*4f<**ik*#iY1f'R+Rt�1t��tfk++ttY*MRfi4#i411fAf'.l�iRl4i4RFYhffilRf'.lRhll4fel:Y+l�#YY#kTRIY4hi4k11i♦
* E.G. Elev (ft) * 4825.65 " Element * Left OB • Channel ` Right OB *
" Vel Head (f[) * 0.17 + Wt. n-Val. * 0.035 R 0.040 * 0.035 *
* W.S. Elev (fU � 4825.48 * Reach Len. (ft) • 684.00 • 810.00 ` 815.00 *
� R Crit W.S. (fU * * Flow Area (sq fU ' 78.08 ' 2137.98 � 314.75 *
* E.G. Slope (ft/fU "0.000825 * AYea (sq fU • 78.08 ' 213�.98 � 314.75 �
Page 19
. STVRAIN.rep
� F Q TOtal (Cfs) • 8271.30 t Flow (Cfs) * 149.27 * 7344.32 * 77�.71 �
* Top Width (fU * 518.12 * Top Width (fU * 39.18 ` 370.00 * 108.94 *
+ Vel Total (ft/s) * 3.27 • Avg. Vel. (ft/s) * 1.91 * 3.44 * 2.47 *
" Max Chl Dpth (ft) * 5.78 R Hydr. �epth (ft) * 1.99 * 5 JB * 2.89 �
* Conv. Total (cfs) `288023.8 * Conv. (cfs) x 5197.9 *255744.5 * 27081.4 *
* Leng[h Wtd. (ft) ' 807.95 * Wetted Per. (ft) * 39.76 " 370.00 * 109.10 �
* Min Ch E1 (ft) " 4819.�0 * Shear (lb/sq ft) • 0.10 * 0.30 * 0.15 *
* Alpha � 1.04 • S[ream Power (lb/f[ s) • 0.19 " 1.02 + 0.3� •
t Frctn Loss (fU * 0.46 * Cum Volume (acre-fU • 5.46 * 237.49 * 9.19 '
` C & E Loss (ft) • 0.02 " Cum SA (aCles) ' 2.44 * 45.21 * 1.75 *
:...+aa+.+......++.........«...+.....x+..+..ar.rx.,..+:+:+.......a..x.x.+....rx+.x..+.+.>....+.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile #SO yeaT
#F#FA1f£F4ik##F#44i4ik*MM+%RA<£t#*ifT*#A#4i#Yt+MYM4rtR#1*xrT#!#i414f1fYFk++#+k#hMi#lkiY#kS4#+i1Y
� E.G. Elev (ft) * 4819.78 " Element ' Left OB * Channel * Aight OB •
* Vel Head (ftl * 0.00 * Wt. n-Val. t 0.035 * 0.040 * 0.035 ' .
' W.5. Elev (ft) ' 4819.78 * Reach Len. (ft) * 684.00 * 810.00 ' 815.00 *
* Crit W.S. (ft) * ` Flow Area (sq ftl • 0.01 * 28.73 ' 0.06 '
• E.G. Slope (ft/ft) *0.000026 � Area (sq fU ' 0.01 * 28.73 � 0.06 *
* Q Total (cfs) ^ 1.00 • Flow (cfs) * 0.00 * 1.00 ' 0.00 •
* Top Width (ft) K 371.7� * Top Widih (ft) * 0.31 * 370.00 * 1.46 •
* Vel Total (ft/s) * 0.03 • Avg. Vel. (fC/s) ' 0.02 * 0.03 ' 0.02 *
* Max Chl Dpth �ft) * 0.08 • Hydr. Depth (fU * 0.04 * 0.08 * 0.04 *
* Conv. Total (cfs) * 194.5 � Conv. (cfsl * 0.1 * 194.2 • 0.3 *
* Length Wtd. (fU ` 809.98 t Wetted Pez. (ft) * 0.32 � 370.00 R 1.47 *
• Min Ch E1 (fU * 4819.70 * Shear (lb/sq £t) ' 0.00 • 0.00 * 0.00 `
* Alpha * 1.00 * Stream Power (lb/ft s) * 0.00 ^ 0.00 * 0.00 *
• Frctn Loss (ft) ' 0.01 * Cum Volume (acre-ft) ' 0.03 * 15.52 * 0.58 *
' C & E Loss (ft) * 0.00 " Cum SA (acres) ' 0.01 ' 45.15 * 0.03 *
•:�+x+it�+...::.:xwx+:+...Fax+x::�♦t+x.:.+r�t+.+».rwr:.:3�..:*+.wrE:+++�aa++ixRwrw:.+t++a�wwxx+
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance� is less than
0.7 or greater than 1.4. This may indicate�the need for additional cross sections.
CROSS SECTION OUTPUT Profile #50 year
x.fi..::,::t+++..xt+xx+;+;tt++xrKx:.�<i+x+x+i::rtai+Ki.++..+:.�its+k+rxwxxx�x,+x+ax+«�xr.:=.+x=+
* E.G. Elev (Et) * 4820.57 W Element * Left OH ' Channel ' Right OB *
� Vel Head (fU * 0.00 * Wt. n-Val. * 0.035 * 0.040 ' 0.035 '
* W.S. Elev (ft) • 4820.57 * Reach Len. (EU � 684.00 * B10.00 � B15.00 �
* C[it W.S. (fU ' ' Flow Area (sq ft) ' 1.49 * 321.40 * 7.11 * �
x E.G. Slope (ft/ft) `0.000272 * Area (sq ft) * 1.49 R 321.4� { 7.11 *
* q Total (cfs) * 182.70 • Flow (cfs) * 0.59 * 1�9.26 * 2.85 *
� Top Width (ft) ' 389.81 R Top Width (ft) * 3.43 i 370.00 ' 16.38 *
* Vel Total (ft/s) ' 0.55 R Av9. Vel. (ft/s) ' 0.39 • 0.56 � 0.40 •
t MaX Chl Dpth (ft) * 0.8� • Hydr. ➢epih (ft) * 0.43 * 0.87 ' 0.43 •
' Conv. Total (cfs) ' 11078.2 t Conv. (cfs) * 35.6 • 10869.6 ' 1�3.0 R
" Length Wtd. (ftl * 809J5 * Wetted Per. (ft) * 3.54 * 310.00 ' 16.40 *
• Min Ch E1 (ft) * 4819.�0 * Shear (lb/sq ft) * 0.01 * 0.01 * 0.01 *
* Alpha • 1.01 * Stream Power (lb/ft s) ' 0.00 * 0.01 • 0.00 R
k Frctn Loss (fU ` 0.12 * Cum Volume (acie-ft) ' 0.13 • 44.75 • 1.39 '
* C 6 E Loss (ft) * 0.00 • Cum SA (aCres) * 0.25 � 45.21 • 0.36 *
�:++ix+xa+.>x:�::::x.+tr���i..:.t.yiaRr.w+t++++t+�+r.w..�::�i+a�aa+wrr�.+���++t+:+it+t+s++i+�t+
Warning: The conveyance ratio (upst:eam conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: St. Vrain River
REACH: EXISTZNG LAKES RS: 66768
INPUT
Description: The wa[er will pond [0 4819.7 in the lakes upstream of the
proposed spillway at csoss-section 64715 as this is the proposed
weir eleva[ion.
Station Elevation Data num= 27
Sta Elev Sta Elev Sta Elev Sta Elev Sta Slev
+.......::......::.::....:....+:....:.:+.+.+.....:...:..:....�++.�.......+....+.
1310 4839 1325 4839 1350 4839 1390 4838 1402 4837.5
1433 4835 1445 4831.5 1466 4827.9 1539 4820 1540 4819.7
Page 20
STVRAIN.rep
1571 4806 1604 4806 1643 4806 1672 4806 1748 4806
. 1901 4806 1932 4806 1944 4806 1961 4806 1978 4806 �
2002 4806 2106 4806 2203 4806 2320 4810 2362 4819
23�1 4819.7 2402 4822.3
Manning's n Values num= 3
5[a n Val Sta n Val Sta n Val
awx.............«.+..++:.,...:::::..:.:,x..x..:.
1310 .035 1540 .04 2371 .035
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Hxpan.
1540 2371 713 �13 773 .1 � .3
Blocked Obstructions num= 1
S[a L Sta R Elev
i�«�.R�rr��:.:Rxw.:.��a•
1310 2402 4819.�
CAOSS SECTION OUTPUT Profile k100 year
{xk�k4if4ffhiyKi++itl+i##1S#4i4f1#44#1i4i#14kt#iitt44i4�+4i++ii�44if�{iiKxkMlxY#+#*x1i#F4k#it;t
" E.G. Elev (ft) * 4821.19 ' Element * Left OB * Channel * Right OB •
* Vel Head (ft) • 0.01 * Wt. n-Val. * 0.035 * 0.040 * 0.035 * �
* W.S. Elev (fU * 4821.19 * Reach Len. (ft) * 713.00 * 713.00 * 713.00 *
� Csit W.S. (ft) * * Plow Area (sq fU * 7.82 � 1233.52 " 13.14 F
• E.G. Slope Ift/ft1 *0.000145 * Area (sq ft) * 7.82 * 1233.52 * 13.14 •
' Q Total (cfs) * 726.59 ' Flow (cfs) ' 2.99 * 718.10 * 5.49 R
* Top Width (fU * 860.65 * Top Width (Yt1 ' 11.95 * 831.00 � 17.70 *
* Vel Total (ft/s) * 0.58 * Avg. Vel. (ft/s) � 0.38 * 0.58 k 0.42 �
* Max Chl Dpth Ift) * 1.48 � Hydr. �epth (ft) ' 0.65 ' 1.48 • 0.74 *
* Conv. Total (cfs) ` 60331.7 + Conv. (cfs) • 248 J ' 59626.9 • 456.1 *
i Length Wtd. (ft) * 713.00 • Wetted Per. (fU + 12.05 * 831.00 * 17.76 =
* Min Ch E1 (fU ' 4819 Jo * Shear (lb/sq fU • 0.01 * 0.01 * 0.01 *
* Alpha i 1.00 • Stream Power (lb/ft s) � 0.00 * 0.01 ' 0.00 *
t Fzctn Loss (fU * 0.14 ' Cum Volume (acre-fU ` 0.31 • 59.01 * 1.76 *
' C & E Loss (ftl * 0.00 * Cum SA (acresl * 0.39 • 34.04 * 0.24 *
.xx+.+..+...«.xx...a..++.x.+..+.......:..x:.::...«+.:::::..:::«..+....++.«::..:..:+xx.�.:.xx...
CROSS SECTION OUTPUT Profile #50� yeaz
, x�+wiKt�r*+a.xx«x:t«.+.x+x+Kw.x+::�.+x:+:.:+rt+�x.�t::t++rrF�ia.�rxai+iR�r++t�+�+x�++a+x+Fa��xx
* E.G. Elev (ft) * 4825.11 • Element * Left OH * Channel ` Right OB *
* Vel Head (ft) * 0.09 * Wt. n-Val. + 0.035 * 0.040 R 0.035 *
* W.S. Elev (£[) * 4825.07 t Reach Len. (ft) � �13.00 * 713_00 * 713.00 *
* Crit w.5. (fU * ` Flow Area (sq ft) ' 124.19 * 4465.81 * 126.30 *
' E.G. Slope Ift/fU *0.000454 * Area (sq fU * 724.19 • 4465.81 • 126.30 *
* Q Total (Cfs) '11328.57 � Flow (cfs) ' 2ll.07 *10842.89 * 274.61 i
* Top Width (fU * 909.89 ' Top Width (fU ' 47.89 • 831.00 ' 31.00 *
* Vel Total (ft/s) • 2.40 * Avg. Vel. (ft/s) ' 1.70 " 2.43 * 2.17 '
" Max Chl Dpth (fU * 5.37 * Hydr. Depth (ft) * 2.59 • 5.37 • 4.07 +
* Conv. Total (cfs) *531780.3 * Conv. (cfs) * 9907.8 '508981.7 * 12890.8 *
* Leng[h Wtd. (fU • 713.00 * Wetted PeY. (ft) ' 48.21 * 831.00 r 33.86 '
* Min Ch E1 (f[) * 4819.70 * Shear (lb/sq ft7 * 0.07 * 0.15 • 0.11 *
* Alpha * 1.01 � Siream Power (lb/ft s) • 0.12 � 0.3� * 0.23 �
� Frctn Loss (ft) * 0.44 * Cum Volume (acre-ft) * 3.8� t 106.09 * 5.06 a
* C & E Loss (fU R 0.01 * Cum SA (a¢es) ' 1.�5 ' 14.04 * 0.44 •
♦+r.+...�:+.r.+:...i.ti��a�++++w+xwiR..::+�:�t�+e�trtit�aiixw+rix.xrrx���+��++���++++�+�s���a+r
Warning: The cross-section end points had to 6e extended vertically for the computed water surface.
CROSS SECTION OUTPUT Profile #10 year
+.....++.....+..++.....xa...+.++....+xx...:..:....�+...+.......x�...x«+.+x+..:a+.......++�..+++
* E.G. Elev (ft) ' 4679.�� • Element � Left OS * Channel ' Right OH *
x Vel Head (ft) * 0.00 • Wt. n-Val. " 0.035 * 0.040 * 0.035 *
` W.S. Elev (ftl R 4819.�� * Reach Len. lft) * 713.00 * 713.00 * 713.00 *
� Crit W.S. Ift) R * Flow Area (sq fU * o.01 • 54.37 * 0.03 *
* E.G. Slope (ft/ft) R0.000�09 � Area (sq ftl * 0.01 * 54.37 * 0.03 *
* Q Total (cfs) * 1.00 * Flow (cEs) * 0.00 * L�0 • 0.00 *
* Top Width (ft) • 832.00 * Top Width (f[) * 0.22 ` 831.00 ' 0.78 t
* Vel Total (ft/sl * 0.02 • Avg. Vel. (ft/s) * 0.01 x 0.02 " 0.01 �
" Max Chl Dp[h (ft) • 0.07 * Hydr. Depth (ft) ' 0.03 * 0.07 k 0.03 *
* Conv. Total (cfs) • 328.1 * Conv. (cfs) * 0.0 * 328.0 * 0.1 *
R Leng[h Wtd. (fU * 713.00 + Wetted Per. (fU * 0.23 • 831.00 * 0.78 *
* Min Ch E1 (fU * 4819 JO ' Shear (lb/sq ft) • 0.00 3 0.00 * 0.00 *
� Alpha � 1.00 * Stream Power (lb/ft s) ' 0.00 * 0.00 t 0.00 *
* Frctn Loss (fU ' 0.01 ' Cum Volume (acre-ft) * 0.03 * 14.75 " 0.58 *
* C & E Loss (fU ` 0.00 ' Cum SA (acres) ' 0.01 * 33.99 ' 0.01 "
Page 21
STVRAIN.rep
Y#RARiktMi4ilttfftt#ti#i4Y#R*Tf#+*ti#k1*t4*kitl##11f##1#4#i1Y₹l+Y4t11##Ai!#ik�iW#!44#4#fYiti4il
Warning: The conveyance ratio (vpstream conveyance divided by downstream conveyance) is less than
0.7 or greater [han 1.4. This may indicate the need for additional cross sections.
CROSS SECTION OOTPUT Profile #50 year
4F>4iiki#Rx##4Y1kf##fAxft##Y4#*M*i#*i#i*TfiR�ftitt4�fttitY4tl4fY�#4tiiN+#Rk##ix#F4iXhRYY#+*R#1#
' E.G. EleV (Et) * 4820.46 • Elemen[ * Left OB * Channel * Right OH *
t�Vel Head (fU ` 0.00 * Wt. n-Val. * 0.035 � 0.040 * 0.035 *
* W.S. Elev (fU * 4820.46 * Aeach Len. (ft) * 713.00 ' 713.00 • 713.00 *
k Crit W.S. (fU * * Flow Area (sq ft) * 1.56 * 626.90 � 3.39 *
* E.G. Slope (ft/£U t0.000089 • Area (sq fU " 1.56 � 626.90 R 3.39 *
� Q Total (cfs) * 162 JO * Flow (cfs) * 0.28 * 181.72 * 0.71 *
R Top width (fU * 845.20 * Top Width (ft) * 5.20 " 831.00 • 9.00 *
* Vel Total (tt/s) * 0.29 * Avg. Vel. (ft/s) ' 0.18 ' 0.29 * 0.21 *
* Max Chl Dpth (fU ' 0.75 � Hydr. Depth (ft) * 0.30 ' 0.75 * 0.38 �
* Conv. To[al (cfs) * 19403.4 * Conv. (cfs) � 29.4 • 19299.0 ' 75.0 '
* Length Wtd. (ft) * 713.00 * Wetted Per. (ft) * 5.27 * 831.00 ' 9.03 *
' Min Ch E1 (fU * 4819.70 " Shear (lb/sq fU * 0.00 * 0.00 ' 0.00 *
* Alpha • 1.00 * Stream Power (lb/ft s) * 0.00 + 0.00 t 0.00 '
* Frctn Loss (ftl • 0.09 * Cum Volume (acre-ft) * 0.10 * 35.94 • 1.29 *
• C & E Loss (ft) * 0.00 * Cum SA (acres) * 0.18 � 34.04 * 0.12 * �
At4liiiiFlfM+fF£!}AiA£ttxkY#rtf+x*#kYt#4#W1**4*�tFx#++#4i+FYS#Fihifll44k4#+;#4fAilk�#*1k*k##!#f#
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.� or greater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION � �
RIVER: St. Vrain River
REACH: EXISTING LAKES R5: 66055
INPU2
Description:
— Station Elevation ❑ata num= 10
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.....+.........:...........+.....+i+::..................::+.....::.:....:.......
BSS 4850 1000 4837 1093 4819.7 1162 4807 1582 A805
1656 4820 1708 4810 1763 4810 1812 4819.7 1824 4822.2
Manning's n values num= 3
Sta n Val Sta n Val Sta n Val
#i##f4₹YY4AxtRFRfffti##k1Mf*x*!+*iYRtkMii##Si4#1
855 .035 1093 .04 1812 .035
Bank Sta: Left Right Lengths: Le£t Channel Right Coeff Contr. Ezpan.
1093 1812 1075 865 216 .1 .3
Blacked Obstructions num= 1
Sta L S[a R Elev
«+:+.+.+a.+...w....x..«:
1000 1824 4819.7
CROSS SECTION OUTPUT PYofile #100 yeaY
+���:��++tax+x�.x..r�a�t+tt+i+..�t:�:+++x�++.�rrr�iwxwxw+x+w�::�:+e..e�ttt��a+�:x.�:++r++i+t++♦
* E.G. Elev (ft) * 4821.05 * Element * Left OB R Channel * Bight OB • �
* Vel Head (f[) • 0.01 * Wt. n-Val. • 0.035 ` 0.040 * 0.035 *
R W.S. Elev (ft) * 4821.D4 * Reach Len. Ift) * 1075.00 • 865.00 * 216.00 *
' CTit W.S. (£tl • * Flow Area (Sq ft) * 4.84 ' 964.30 * 4.32 *
* E.G. SlOpe (ft/ft) '0.000274 * Aiea (Sq fU ` 4.84 ' 964.30 * 4.32 �
* Q Total (cfs) * 726.59 * Flow (cfs) * 2.58 * 727.71 * 2.30 *
+ Top Width (ft) * 732.65 " Top Width (£t) + 7.21 * 719.00 • 6.44 *
* Vel Total (ft/s) * 0 JS a Avg. Vel. (ft/s) * 0.53 * 0 JS * 0.53 *
* Max Chl Dpth (ft) * 1.34 * Hydr. �epth (fU " 0.67 * 1.34 • 0.67 *
* Conv. Total (cfs) * 43856.5 * Conv. (cfs) * 155 J • 43562.2 * 138.6 3
* Length Wtd. (fU * 863.86 • Wetted Per. (ft) k 7.34 * 719.06 * 6.58 *
* Min Ch E1 (f[) * 4619.70 * Shear (lb/sq ft) * 0.01 * 0.02 * 0.01 *
* Alpha • 1.00 * Stream Power (lb/ft s) * �.ol � 0.02 � 0.01 *
� Frctn Loss (ft1 � O.ZS * Cum Volume lacre-ft) • 0.21 � 41.02 * 1.61 *
� C & E Loss (fU * 0.00 • Cum SA (acres) * 0.23 • 21.36 * 0.04 *
•l�flkfi#fi##kYk111xt�ttk#W+Nwffxllfi}k#44##i#ii#F#hRrttf4#1lhxT##14#+iiYi44##l41xi4kh#Y!4lFfx!#!
CROSS SECTION WTPUT Profile #500 year
. iwfiflTARk*i44FMtT}�tkfRAlAxtt#kY#Wiktt}xht4tlt;WF1f#14iikT4S+ixilTtftflxiatlMtxTTt4RRFxxlwfltl
Page 22
STVRAIN.rep
* E.G. Elev (tU * 48z4 J2 * Element ' Left OB * Channel ' Right OB *
, • Vel Head (fU • 0.15 ' Wt. n-Val. ' 0.�35 • 0.040 + 0.035 •
* W.S. Elev (ft) R 4824.57 * Reach Len. (ft) • 1075.00 ` 865.00 � 216.00 *
* Crit W.S. (fU * * Flow Area (sq ft) * 63.61 * 3497.30 * 93.38 *
+ E.G. Slope (ft/f[) *0.000881 * Area (sq fU * 63.61 r 3497.30 ` 43.38 •
* Q Total (cfs) R11328.57 ' Flow (cfs) ' 143.38 *ll072.32 + 112.88 `
t Top width (ft) " �5�.15 * Top Width (ft) * 26.15 * 719.00 ' 12.00 +
� Vel Total (ft/s) • 3.14 * Avg. Vel. (ft/s) ` 2.25 ' 3.17 * 2.60 '
t Max Chl Dpth (fU * 4.86 ' Hydr. Depth (ft) • 2_43 * 4.86 * 3.61 �
+ Conv. Total (cfs) "3815�7.8 ' Conv. (cfs) ` 4829.4 *372946.5 ' 3802.0 *
* LengCh Wtd. (f[) • 861.59 * Wetted Per. (ft) * 26.60 * 719.06 * 14.62 *
• Min Ch E1 (ft) * 4819.70 * Sheaz (lb/sq ft) * 0.13 � 0.27 • 0.16 *
� Alpha ` 1.01 * Stream Power (lb/ft s) w 0.30 * 0.85 ' 0.42 *
i Fcctn Loss (ft) * 0.73 * Cum Volume (acre-tU * 2.33 � 110.92 * 3.6� *
* C fi E Loss (ft) * 0.02 * Cum SA (acres) * 1.15 * 21.36 ' 0.09 *
Yiiftkk+tAY1YM*#�A%xfF*xli4thtY4flf}f1#4rt#rtk}ihfRt44+R+YM#iMRK1Mt�tfitt411ii41+f#�f}1fk#44A4t4+
Warning: The cross-section end points had to be extended vertically for the computed water surface.
CROSS SECTION OUTPOT Profile #10 year
+k*A��Ritttiki+*Ifxxxltl4ltY##I1Mk4k4S4ti1+1#f#Rk1t##Y+f+xYf4t+ii+ki#4fki#i1lxfRtfY4it*41FxR11#
* E.G. Elev (ft) * 4819.�6 • Element * Left OB � Channel i Right OB •
• Vel Head (ft) * 0.00 * Wt. n-Val. * 0.035 � 0.040 * 0.035 *
* W.S. Elev (ftl ' 4819.76 ' Reach Len. (ft) • 1075.00 * 865.00 r 216.00 f
* Crit W.S. (fU * * Plow Area (sq fU • 0-01 * 41.62 { 0.01 R
� E.G. Slope (ft/fU *0.000019 * Area (sq ft) * 0.01 ` 41.62 * 0.01 *
r Q Total (cfs) * 1.00 * Plow (cf5) ' 0.00 ' 1.0� * 0.00 *
* Top width (Et) * 717.34 * Top Width (ft) � 0.31 * 716.55 * 0.28 *
+ Vel Total (ft/s) ' 0.02 * Avg. Vel. (ft/s) * 0.02 * 0.02 ' 0.02 *
R Max Chl Dpth (ft) � 0.06 • Hydr. Depth (fU � 0.03 * 0.06 * 0.03 *
* Conv. Total (cfs) * 231.9 * Conv. (cfs) + 0.0 * 231.9 * �.0 *
* Lengih Wtd. (ft) * 864.96 * Wetted Per. (ft) • 0.32 t �16.56 ' 0.28 *
' Min Ch E1 (ft) i 4819.70 " Shear (lb/sq fU * 0.00 • 0.00 ' 0.00 *
* Alpha * 1.00 t Stream Power (lb/ft s) * 0.00 * 0.00 • 0.00 *
� Frctn Loss (ft) * 0.04 " Cum Volume (acre-ft) * 0.03 3 13.96 ` 0.58 •
� * C � E Loss (fU * 0.00 • Cum SA (acres) * 0.01 � 21.32 ' 0.00 •
f£xftftftWi*ktflktw#kAFFt+14AF*kR£tki##xtRi44+t#x4xRkiii4F4#*iY�ft�tf44kihYkf##Ri4k+iflkM!!!t#s
Warning: Divided flow computed for this cross-seCtion.
Warning: The conveyanCe ratio (upstream conveyance divided by downstream con��eyance) is less than
0.7 oz gzeater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile #SO year
��aa�x�x:...::xK�.+tixr�R+it+iir:+x�r++xxx:+++.rwx:rttr*ri�rx+.�.:i�rir.x.x.�+�+M.x+.i++�aw�.xR
* E.G. Elev (ft) * 4820.37 * Element • Left OB ' Channel • Right OH *
• Vel Head (ft) * 0.00 � Wt. n-Val. * 0.035 * 0.040 � 0.035 `
+ W.S. Elev (fU * 4820.3� • Reach Len. (fi) + 1075.00 " 865.00 " 216.00 �
• Crit W.S. (ft) * * Flow Area (sq fU R 1.19 ' 478.41 * 1.06 '
t E.G. Slope (ft/ft) R0.�00181 * Area (sq ft) ' 7.19 * 478.41 ' 1.06 +
* Q Total (cfs) * 182.70 • Flow (cfs) ' 0.32 r 182.09 * 0.29
' Top Width (ft) * 725.78 * Top Width Ift) " 3.SB * 719.00 * 3.20 '
* Vel Total (ft/s) * 0.38 * Avg. Vel. (ft/s) • 0.27 * 0.38 • 0.27 *
* Max Chl Dpth (fU * 0.6� * Hydi. Depth (ft) * 0.33 ` 0.67 � 0.33 *
' Conv. Total Icfs) ` 13589.8 * Conv. fcfs) • 24.0 * 13544.4 * 21.4 *
* Leng[h Wtd. (ft) R 864.47 ' wetted Per. (ft) * 3.64 ; 719.06 * 3.27 +
* Min Ch E1 (fU ' 4819 JO * Shear (lb/sq ft) � 0.00 0.01 0.00
* Alpha * 1.00 * St[eam Powe[ (lb/ft s) ' 0_00 • 0.00 * 0.00 *
> Frctn Loss (fU ' 0.21 i Cum Volume (acze-ft) ' O.OB * 26.89 * 1.25 •
* C & E Loss (ft) * 0.00 ^ Cum SA (acres) * 0_11 * 21.36 * 0.02 *
�+++x:r+++rarxx�+*+rxx::�+yxx.3r+xx.+i�++tR++++<xr�++�rx«wx++{trr�r.k++++r�+rw+�+wir.�t+a�wrxxr
Warning: The conveyance ratio (upsiream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
CAOSS SECTION
RIVER: St. Vrain River
REACH: EXISTING LAKES RS: 65190
INPUT
�escription: This is the proposed spillway ou[ of ihe the 'big' lake, which
will convey flow back into the St.. Vrain River.
� Station Elevation Oata num= 13
Page 23
STVRAIN.rep.
� Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev .
� +#lfM�kF44kiF+YA�fRkI1h##+hW1#kt�ikkiR#k#ki*Fi�Y4#1i444**W*i#i1#iFi#h4A1*lfifili
846 4840 948 4828 1061 4822 1078 4819.7 1107 4816
1200 4817 1326 4810 1408 4810 1564 4810 1765 4810
209� 4810 2159 4819.7 2173 4822
Manning'S n Values num= 3
S[a n Val Sta n Val Sta n Val
......,:....«....,..:....a...+a:.......:.:+«..«.
B46 .035 1078 .045 2159 .035
Bank Sta: Left aigh[ Lengths: Left Channel Right Coeff Contr. Ezpan.
1078 2159 140 140 140 .3 .5
Blocked Obstructians num= 1
5[a L Sta R Elev
+«.«...r...:...........,
846 2173 4819.7
CROSS SECTION OUTPUT Profile p100 year
at�Rx+x��+�+�++xrr:.wx+rt�w��xx+;+t«R:::.xe+.x.wK�++.+++w+r�rx*xi++++rt.+w�««�+Fri+..+.+��t�+�.
* E.G. Elev (fU " 4820.80 * Element ' Left OB * Channel * Right OB *
* Vel Head (ft) * 0.07 * Wt. n-Val. ' 0.035 � 0.045 * 0.035 '
* W.S. Elev (ft) rt 4820.80 � ReaCh Len. (ft) * 14�.00 * 140.00 * 140.00 {
k CTit W.S. (ft) • 4819.94 ' Flow Area (sq ft) • 4.43 * 1183.40 ' 3.65 *
* E.G. Slope (ft/fU *0.000303 * Area (sq fU ' 4.43 * 1183.40 * 3.65 •
* Q Total (cfs) * 726.59 * Flow (cfs) * 2.18 * 722.62 * 1.�9 *
* Top Width Ift) • 1095 J6 w Top Width (ft) * 8.09 � 1081.00 * 6.66 •
+ Vel Total (ft/s) ' 0.61 + Avg. Vel. (ft/s) * 0.49 • 0.61 � 0.49 *
* MaX Chl Dp[h (fU * 1.09 � Hydr. Depth (ft) ' 0.55 • 1.09 * 0.55 •
" Conv. Total (cfs) * 41734.4 � Conv. icfs) • 125.1 ' 41506.7 * 102.7 •
+ Length Wtd. (ft) * 140.00 * Wetted Per. (ft) ' B.P * 1081.00 ` 6.75 +
* Min Ch E1 (ft) • 4819.�0 ` Shear (16/sq ft) ' 0.01 * 0.02 a 0.01
* Alpha ' 1.00 ` Stream Power (lb/ft s) * 0.01 r 0.01 * 0.01 *
* Frctn Loss (ftl * * Cum Volume (acre-fU • 0.09 * 19.69 ' 7.59 *
* C S E Loss (fU * * Cum SA (acres) * 0.05 * 3.48 ` �.01 *
:..:...++r.x.....:+..x...�.x+<x..xr..:..+.xx.xxx..«w•+xx.�+++.x.».+x.�.+.:....+++.....+.....x+.
CROSS SECTION OUTPUT Profile q500 year
x++:::xa«x::.�.i.+�a�..+.++3t+wxER.+:�...x+.,�t+++r��wrx:a:+�+�xrxt:x:+x�rrr.xt�:�ki�.r+.:x.:.:
R E.G. Elev (ft) * 4823.9� * Element * Left OB * Channel * Right 0B *
• Vel Head (fU ` 0.09 ' Wt. n-Val. ' 0.035 ' 0.045 ' 0.035 *
� ' W.S. Elev (ft) ' 4823.87 * Reach Len. (ft) • 140.00 • 140.00 * 140.00 '
• Crit W.5. (fU • 4821.19 * Flow Area (sq ft) • 84.43 * 4510.85 ' 42.32 *
* E.G. Slope (ft/ft) •0.000825 * Area (sq ft) + 84.43 * 9510.85 ' 42.32 *
* Q Total (cfs) *11328.5� * Flow (cfs) * 141.35 *11088 J7 ^ 98.45 *
* Top Width (ft) * 1147.28 ' Top Width (ft) * 52.28 * 1081.00 ° 14.00 '
* Vel Total (ft/s) * 2.44 � Avg. vel. (ft/s) � 1.6� * 2.46 * 2.33 ^
* Max Chl Dpth Ift) * 4.17 + Hydr. Depih (£t) r 1.62 " 4.17 * 3.02 *
• Conv. Total (cfs) '394416.4 ` Conv. (cfs) * 4921.1 *386067.5 * 3427.8 *
a Length wtd. (ft) � 140.00 ' Wetted Per. (ft) ' 52.48 * 1081.00 ' 16.06 *
• Min Ch E1 IfU ` 4819.70 F Shear (lb/sq ft) ' 0.08 * 0.21 * 0.14 *
* Alpha * 1.01 • Stream Power (lb/ft s) • 0.14 • 0.53 • 0.32 *
* FiCtn Lo5s (ft) * ' Cum VOlume (aCie-£t) • 0.51 • 31.40 * 3.46 *
* C & E Loss (ft) * * Cum SA (acres) * �.18 * 3.48 * 0.02 •
•+r�rxxrrw+«++��{tx+Kwrxx�.:.+r..xx:.=++�xxwk�t++<t�..«���+:e+.tt+..rxi«+t�a+�+++rx..�+++���+�:
CROSS SECTION OUTPUT ProEile #10 year
i4i�11klk41F4i1i4#t*TFx*Y1k++#M+fAkkfi%iiflRkfif*+ii#hi�htf!#ftY4+wf%rtfRxtll;+fY###fix+1l+i4Y#+++*
* E.G. Elev (ftl * 4819.�2 � Element • Left OH � Channel * Right OB *
* Vel Head (Et) • 0.00 • Wt. n-Val. * 0.000 ' 0.045 * 0.000 *
* W.S. Elev (ft) ' 4819.72 ' Reach Len. (ft) ' 140.00 ' 140.00 * 140.00 '
* Crit W.S. (ft) � 4819.�2 * Flow Area (sq ft) a 0.00 + 27.11 * 0.00 *
� E.G. Slope (f[/ft) *0.000391 * Area (sq fU * 0.00 R 21.11 * 0.00 *
* Q Total (cfs) w 1.00 * Flow (cfs) ' 0.00 * 1.00 * 0.00 •
" Top Width (fU * 1081.26 * Top Width (ft) " 0.14 ' 1081.00 * 0.12 `
+ Vel To[al (f[/s) * 0.05 * Avg- Vel. (ft/s) * 0.04 • 0.05 * 0.04 '
R Max Chl Dpth (ft) * 0.02 * Hydr. Depth (ft) * 0.01 � 0.02 * 0.01 *
* Conv. Tota1 (cfs) ' 50.6 + Conv. (cfs) * 0.0 * 50.6 * 0.0 '
* Length Wtd. (ft) * 140.00 * wetted Per. (ft) ' 0.15 * 1081.00 * 0.12 *
• Min Ch E1 (ft) * 4819.�0 * Shear (lb/sq fU R ' 0.00 * •
* Alpha + 1.00 ' Stream Power (lb/ft s) � * 0.00 * R
� Frctn Loss (ftl * * Cum Volume (acre-ft) * 0.03 • 13.34 * 0.58 *
* C 6 E Loss (ft) * * Cum SA (acies) * 0.00 • 3.47 " 0.00 r
� *#4*;t44#RYY�fifi;#Fih*##F4ihAk#4₹#YMRIt�i#n*###44#w#lW��k�xx*#414rt#KYFf�Y#R1f£4*itwiFl#4iX1fR1
Page 24
STVRAIN.rep .
� Warning: Critical depth in trie cross section upstream of the inline s[ruc[ure produced too much flow past
the inline structure. This means there is not a valid subcriCical answer. The upstream cross
sectio� defaulted to critical depth.
CROSS SECTION OUTPUT Profile q50 year
W1ikflfrtlYki#11t;RxRfltxfflMhtlYfR11M%1#i}+*1+hkf1RlflIAx4lxMfYi4i#14i1#1ii4Mi�YYifii#i#4###i!+
' E.G. Elev (fU * 4820.16 • Element * Left OB • Channel * Right OH R
+ Vel Head �ft) • 0.00 k W[. n-Val. * 0.035 + 0.045 • 0.035 *
* W.S. Elev (ft) rt 4820.16 ' REaCh Len. (ft) * 140.00 * 140.00 * 140.00 *
' Crit W.S. (ft) ' 4619.80 * Plow Area (sq ft) * 0 J6 ' 491.41 ` 0.63 *
' E.G. Slope (ft/fU "0.000361 * Area (sq f[) * 0.76 * 491.41 * 0.63 �
* Q Total (cfs) * 182.�0 * Flow (cfs) * 0.23 * 182.29 ' 0.19 *
� Top Width (ft) * 1067.13 * Top Width (ft) • 3.36 � 10fl1.00 * 2.77 R
* Vel Total (ft/5) ' 0.37 ' Avg. Vel. (ft/s) ' 0.30 ' 0.37 ' 0.30 *
• Max Chl Dpth (ft) * 0.45 * Hydr. Depth (fU * 0.23 a 0.45 * 0.23 •
* Conv. Total (cfs) • 9615.3 R Conv. (cfs) * 12.0 * 9593.4 * 9.9 *
` Length Wtd. (ft) * 140.00 * Wetted Per. (fU ' 3.39 • 1081.00 * 2.80 *
' Min Ch E1 (ft) � 4819.�0 * Shear (lb/sq fti • 0.01 * 0.01 " 0.01 *
� Alpha * 1.00 • Stzeam Power (lb/ft s) * 0.00 + 0.00 * 0.00 *
* Frctn Loss (ft) • * Cum Volume (acre-ft) * 0.06 * 17.26 � 1.25 R
• C & E Loss (ft) t * Cum SA (acres) k 0.03 * 3.48 • 0.00 *
..+.«.+•+.+++«...x+.x.x.:::x:.:...�....«.....a+..+.+a+......r+.....a.........w...x.x..x..xwxr.»
INLINE STRUCTURE
RIVER: St. Vrain River
REACR: EXZSTING LAKES RS: 65125
INPUT
Description:
Distance from Upstream XS = 65
Deck/Roadway Width = 25
Weir Coefficient = 2.63
weir Embankment Coordinates num = il
... Sta Elev Sta Elev Sta Elev Sta Elev Sta Slev
fiwYthtt+tkiif�i+k+#hiii*ilRkxxt<<4t1#ii+####if#xx%!k!#*1lfii11+4f4##+I4#Y#fi4f1 �
� 846 4840 948 4828 1061 4822 1107 4819.7 1200 4819.�
- 1326 4819 J 1408 4022.2 1564 4822.2 1765 4822.2 2097 4822.2
2173 4822.2
Upsiream Embankmen[ side slope = 6 horiz. to 1.o vertical
Downstream Embankment side slope = S horiz. to 1.o vertical
Maximum allowable submergence Eor weii flow = .95
Elevation at which weir flow begins =
Weir crest shape = Broad Crested
INLINE STRUCTURE OUTPUT Profile #100 year Inl Struct:
.+.+w........:...:+..+.,..::.:.:.:..+..:.:.:..:..:..«..+:.:::.:::..::..:.
• E.G. Elev (ft) * 48a0.80 ` Q Gates (cfs) * '
* W.S. Elev (ft) ' 4820.80 � Q Gate Group lcfs) * 4819.80 +
a Q Total (cfs) ` 726.59 * Gate Open Ht (fU * 1.00 *
* Q Weir (cfs) + 726.59 * Gate #Open * * -
* Weir Flow Area (sq fU ' 273.01 * Gate Area (sq ft) • •
R Weir Sta Lft (ft) • 1084.99 * Gate Submerg • '
� Weir Sta Rgt (f[) * 1362.10 • Gate Invert (ft) ' *
* Weir Max Depth (£t) * 1.10 • ` *
� Weir Avg Depth (ft) • 0.99 * ` `
* Weir Submerg * 0.76 � ' *
* Min E1 Weir Flow (ft) ' 4819.71 * ^ `
* Wr Top wdth (ft) * 277.11 R • *
.�++...x:xxa.x.:..:....,.+x.«:.+..+.+...x.+..«a..:x:++.+++a.+:xx•+�++.xx.
INLINE STROCTUAE OUTPUT Profile #500 yeai Inl Struct:
«.+.+..x..::=..*.+.«....a.x..«:++..+...x.x«++++.:xxx+�+e+..:.:x+�++..+:x:
+ E.G. Elev (ft) * 4823.97 + Q Gates (cfs) � •
k W.S. Elev (EL) * 4823.67 • Q Gate Group (cfs) * 0.00 •
+ Q Total (cfs) '11328.57 � Gate Open Ht (ft) " 0.00 *
* Q Weir (cfs) *11328.57 * Gate #Open ` � `
i Weir Flow Area (sq ft) * 2712.43 R Gate Area (sq ft) k 4825.44 *
* Weir Sta Lft (ft) " 1023.9� � Gate Submerg ' "
Page 25
STVRAIN.rep
'�, * Weir Sta Rgt (fU ' 2173.00 * Ga[e Invert (ft) ` *
' Weir Max Depth (£t) * 4.27 * * •
* Weir Avg Depth (ft) ` 2.36 r • *
t weir Submerg * 0.82 * * *
• Min E1 Weir Flow (£t) ' 4819.71 * ` *
* wr Top wdth (fU * 1149.03 ' * *
+..x:.......«........x..,..+.......:.:......+..+...,..+.+....a+..+....�..
INLINE STRUCTURE OUTPUT PYofile �10 year Inl StiuCt:
ix«�.xw:x:w:xrx:x::+x:+�+++it��ir+.+�i+�+�*r.�+awrxx+;+�*yt+++x+xi�x.x+x.
+ E.G. Elev (fU � 4819.�2 * Q Gates (cfs) * *
• W.S. Elev (f[) ` 4819.72 * Q Gate Group (cfs) * 0.00 *
� Q Total (cfs) * 1.00 ` Gate Open Ht (f[1 � 0.00 *
' Q Weir (cfsl * 1.00 ' Gate #Open * 0 *
* Weir Flow Area (sq ft) * 4.29 * Gate Aiea (sq fU * 4841.06 *
t Weir Sta LEt (ft) * 1106.61 * Gate Submerg R *
* Weiz Sta Rgt (ft) * 1326.64 * Gate Invett (f[) * *
' Weir Max Dep[h (ft) ` 0.02 ' • *
* Weir Avg Depth (ft) ' 0.02 * ` *
* Weir Submerg ' 0.0� " ' *
* Min E1 Weir Flow (fU * 4819.71 ' * � .
* Wr Top Wdth (ft) ' 220.03 ' " "
.t.+t.�+�.a+r++....rxRxx:�:a+�+�..a.+::::t�+�rRw.Nxxxrrr+.::r�«+�+«.a��+
warning: Critical depth in [he cross section upstream of the inline structure produced too much flow past
the inline structure. This means there is not a valid subcritical answer. The upstream cross
section defaulted [o ciiti=al depth.
INLINE STRUCTURE OUTPUT Profile #5� year Inl Stnlct:
***i+F+xiwtf{ ;klt#i##iiY*ix+iftfitRk#**k�/Fki444T+ik#FYk#xhRAk�tk*4W+Wxh
* E.G. Elev (ft) * 4820.16 + Q Gates (cfs) * •
* W.S. Elev (ft) * 4820.16 • Q Gate Group (cfs) ` 0.00 •
* p Total (cfs) * 182.�0 " Gate Open Ht (fU * 0.00 *
* Q Weir (cfs) ' 182.7D * Gate kOpen * 0 *
� * weir Flow Area (sq ftl ' 105.49 * Gate Area (sq ft) * 4824.06 *
� Weir Sta Lft (fU * 1097.8] " Gate Submerg
' * Weir Sta Rgt (ft) * 1340.98 * Gate Invert (Lt)
i weir Max Depth (ft) * 0.46 * * *
* Weir Avg Depth (ft) ` 0.43 " * *
� Weir Submerg ' 0.53 * ` `
* Min E1 Weir Flow (ft) ' 9819.71 * * `
* wr Top Wdth Ift) * 243.11 * * `
:..........+.+a«...+.+.......+++.....:::..+..+x.xr.,:.+....+.:..xx:...:++
CROSS SECTION
RIVEA: St. Vrain River
AEACH: EXISTING LAKES RS: 65050
INPUT
Description:
Station Elevation Data num= 9
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
x.+.....x..++.xsxx.+«.+::......::.:.:.:.:.....•++.++a.«.+...xx..•+++.....x.x+...
828 4833 1010 4819 1060 4813 1200 4812 1326 4812
1408 4812 1564 4812 1"165 4812 2097 4812 �
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
44ih#!'k#Y#+#+iiiiil*if4kMfA'.lRftikiiklFlkktY�:+ii4
828 .035 1010 .045 2097 .035
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
1010 2097 0 0 0 .3 .5
CROSS SECTION OUTPUT Profile N100 year
:+.+..+.+...+...w+...++....:.:.......e....x.x.�:...x.xx...++...xx.:...r...e.......w.x..x..x....
* E.G. EleV (ft) ' 4820.56 * Element ' Left OB * Channel ' Right OB '
* Vel Head (ft) * 0.00 ` Wt. n-Val. • 0.035 " 0.045 * •
* W.S. Elev (ftl * 4820.56 R Reach Len. (ft) * 30.00 * 30.00 t 30.00 *
� � Crit W.5. (ft) * * Flow Area (sq ft) * 15.82 * 8964.78 * *
' E.G Slope (f[/ft) •0.000000 • Area (sq ft) ' 15.82 * 8964.78 ' `
Page 26
STVRAIN.rep
* Q Total (cfs) * 726.59 � Flow (cfs) t 0.34 • 726.24 � �
" * Top width (EU ' 1107.28 * Top Width (fU + 20.28 ' 1087.00 * �
" Vel Total (f[/s) " 0.08 * Avg, vel. (ft/s) * 0.02 ' 0.06 * *
� Max Chl Dpth (ftl " 8.56 ' Hydr. Depth (ft) • 0.78 * 8.25 " '
t Conv. Total (cfsl *1202434.0 * Conv. (cfs) * 568.0 *1201866.0 • "
` Length Wtd. (fU ' 30.00 * Wetted Per. (ft) • 20.34 * 3095.82 * �
• Min Ch E1 (fU • 4812.00 � Shear (lb/sq ft) t 0.00 * 0.00 r *
` Alpha • 1.00 * Stream Power (lb/ft s) * 0.00 "' 0.00 " *
' Frctn Loss (ft) � 0.00 � Cum volume (acre-fU • 0.06 • 3.39 * 1.59 •
* C s E Loss (fU * 0.11 * Cum SA (acres) ' ' * `
...+........x:..x.x......+.+.rw.x.....+..+.:t:x:::.::«..:.:.+....a...w....+..+.+.a....x.+....+.
warning: The cross-section end points had to be extended vertically for the computed water surface.
CROS$ SECTION OUTPUT Pmfile #500 year
x.x..+:....:::.«,.:..::.:.:.::...+......ar..,+..w.....xwx...:x+=+=.:..:..:.,.«..+..«+.w++......
* E.G. Elev (fU * 4823.52 • Element * Left OB * Channel + Right OB �
* Vel Head (ft) * 0.01 ' Wt. n-Val. * 0.035 • 0.045 * *
� W.S. Elev (ft) � 4823.50 * Reach Len. (ft) ' 30.00 t 30.00 * 30.00 *
* C[it W.S. (ft) • * Flow AYea (Sq ft) ' 131.80 *12163.68 ' *
* E.G. Slope (ft/fU "0.000032 * Area (sq ft) * 131.80 '12163.68 i •
' Q Total (cfs) �11328.57 * Flow (cEs) * 54.21 *11274.36 + '
* Top width (Et) + 1145.54 • Top Width (ft) * 58.54 * 1087.00 * �
* Vel Total (f[/s1 * 0.92 * Avg. Vel. (ft/s) • 0-41 * 0.93 ' *
* Max Chl Dpth (fU ' 11.50 • Hydr. �epth (f[) * 2.25 * 11.19 * '
'� Conv. Total (cfs) '�2004649.0 * Conv. (cfsl ' 9593.0 *1995056.0 ' •
R Length Wtd. (ft) � 30.00 � Wet[ed Per. (ft) � 58.71 * 1098.76 * *
• Min Ch E1 (fU R 4812.0o w Shear Qb/sq fU ' 0.00 � 0.02 • •
* Alpha + 1.oi * Siream Power (lb/ft s) ' 0.00 � 0.02 "' *
i Frctn Loss (ft) ' 0.01 i Cum Volume (acre-.ft) * 0.16 * 4.61 R 3.39 *
* C & E Loss (ft) * 0.11 " Cum SA (acres) * * ' '
:.+.a+.+........ax+..a..x.+x«.....++.+......x:...,:.:.x..+......:..::....+:+.+...+..a.:�+.....+
Warning: The cioss-section end points had to be extended vertically for the computed water surface.
CROSS SECTION 0[1TP[IT Piofile #10 year
� a�t+:.tt.�ri+��tit�iri��xKxt.+se+xitxcxi..+�.:::tt:+r+r..ix:.:tt.:t+a.F.rx..rr.:��+�t+++atat���t:
,f * E.G. Elev (fU * 4818.48 � Element ' LefG OB * Channel 3 Right OB *
* Vel Head (ft) * 0.00 * W[. n-Val. * • 0.045 * '
* W.S. Elev (ft) * 4818.48 * Reach Len. (ft) ' 30.00 � 30.00 i 30.00 • .
= Crit w.S. (ft) * '�' Flow Area (sq fU * * 6707.96 * *
* E.G. Slope (ft/fU '0.000000 ' Area (sq ft) * ^ 67D7.96 * *
• Q Total (cfs) • 1.00 ' Flow (cfs) " * 1.00 ' *
a Top Width (ft) • 1080.96 * Top Width (ft) " * 1080.96 * �
3 Vel Total Ift/s) * 0.00 * avg. Vel. (ft/s) • ' 0.00 * *
* Max Chl Dpth (ft) " 6.48 * Hydr. Depth (fU " * 6.21 • *
` Conv. Total (cfs) '744900.1 * Conv. (cfs) * *744900.1 ' *
* Length Wtd. (fU * 30.00 * Wetted Per. (fL) • • 1037.68 ' '
* Min Ch E1 (fU � 4812.00 � Shear (lb/sq ft) * ' 0.00 " •
' Alpha ' 1.00 '" S[ream Power (lb/ft s) * '� 0.00 * *
* Frctn Loss (ft) * 0.0� • Cum Volume (acre-ft) * 0.03 * 2.53 * 0.58 *
* C 6 E Loss (ft) * 0.09 = Cum SA (acres) * * * `
x.�++wxx:<�:.�i:«t�«a.r:r:x.x::t+t+w+«»„:::ti+w.x.�::+a<+r:�.x+r::+.ir..».+.+�.+t++++s+++++t+:+�•
Warning: The cross-section end poinCs had to be extended vertically for the computed water surface.
CROSS SECTIDN OUTPUT P[ofile #50 year
��xrR.r:rr..aix�+xa+.r.«.++:�+K+r:+a.�«t+�i;.i.�..++ir�k;+++ar,.++:«�+triirx�r�+++��e�+t+«trr,xr�
• E.G. Elev (ft) * 4819.95 * Element * Left OB * Channel * Right OB *
* Vel Head (ft) * O.00 * Wt. n-val. * 0.035 • o.095 � `
* W.5. Elev (ft) * 4819.95 * Reach Len. (ft) * 30.00 * 30.00 * 30.�0 "
* Crit W.S. (fU * * Flow Area (sq ft) " 5.85 * 8300.27 * *
* E.G. Slope (ft/ft) *0.000000 * Area (sq ft) * 5.85 * 8300.27 * `
* Q Total (cfs) '" 182.70 * Flow (cfs) • 0.03 * 182.68 * `
* Top width (ft) * 1099.33 • Top Width (ft) * 12.33 * 1087.00 * *
* Vel Total (ft/s) * 0.02 * Avg. Vel. (ft/s) • 0.00 * 0.02 * *
* Max Chl Dpth (ft) " 7.95 * Hydc. Depth (f[) * o.4"l * 7.64 * R
* Conv. Total (cfs) `1057629.0 + Conv. (cfs) * 150.8 *1057478.0 * •
* Leng[h Wtd. (ft) * 30.00 • Wetted Per. (ft) * 12.37 • 1095.21 ` •
* Min Ch E1 (fU * 4812.00 * Shear (lb/sq fU ` 0.00 * 0.00 ' *
� Alpha a 1.00 • Stream Power (lb/ft s) " 0.00 * 0.00 * `
* Frctn Loss (ft) R 0.00 * Cum Volume (acre-ft) ` 0.05 * 3.13 • 1.25 *
' C & E Loss (ftI * 0.10 * Cum SA (acres) ` ' ' `
� fi�aA#iIF1R4i+1Y#rt4Y'-R{Y4ik#fk#Yi1:�+xxFtillvlRA}ftAAiif+lfiYAiftlf�tYilFf#f:ttA�iik'R4hlhltflkif+Y#
Page 27
� STVRAIN.rep
Warning: The cross-section end points had to be extended vertically for the computed water surface.
CROSS SECTION �
RNER: SC. Vrain River
REACH: I-25 to Junc[ion RS: 71770
INPUT
�escription: This cross-section is the downstream edge of [he I-25 frontage
road. The blocked obstruction on the lef[ overbank is because flow
cannot physically get to this area during the loo-year storm. The
flow will not overtop L25 and [he bank between I-25 and the
frontage road is a[ an elevation of 4B36. �uring the 500-year
event, shallow po�ding will be present at this low point in the
road, however, it will be ineffective flow because the flow will
not overtop I-25.
Station Elevation Data num= 26
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
♦1FFR1:1A4F#YY+##i�.lfi#Y1:###444ltlR*'.lii#R#4i*fAAliRfi£k+lli*+Yii#+#Y+i+Ftftlhlk�.lFf
-400 4852 -200 4839 0 4832 198 4835 325 4839
493 4845 549 4844.6 843 4842.8 950 4842 1000 4832
1013 4827 1026 4826 1057 4824 1065 4822 1145 4822
1183 4826 1248 4827 1261 4826 1277 4831 1305 4834.65
1909 4831.55 2561 4832.65 3217 4833.15 3684 4841.05 3705 4841.05
3901 4843.05
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
*#ii4l4Ff***lfi14'RYfltftfflth'.lY:M#Yfi#Y44�i�Ff4k1#
-400 .07 1000 .04 1277 .07
Bank Sta: Lef[ Right Lengths: Left Channel Right Coeff Contr. Expan.
1000 12�'1 5 5 5 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev Pezmanent
. -400 843 4843 F
1305 3901 4693 F
Blocked Obstructions num= 1
, Sta L Sta R Elev
«:..:.::...x...+.x.+::.. �
-400 493 4836
CAOSS SECTION OUTPUT ProEile #100 yeai
rrx++i:��xxrr�+�at:��.w::rxrrYwRe+aa�+�*+�x��w:x+rwx�wr�wrrt�+�t+++t��i���r:r*�++i+�trs�:��+�++i
' E.G. Elev (ft) � 4833.96 ' Element • Lef[ OB * Channel ' Right OH *
* Vel Head (ft) * 0.84 ' Wt. n-Val. * 0.070 * 0.040 * 0.070 •
* W.S. Elev (ft) ' 4833.11 * Reach Len. (Et) * 5.00 * 5.00 * S.oO *
" Crit W.S. (ft) * 4829.63 * Flow Area (Sq ft) * 3.10 * 2261.24 +' 17.12 *
* E.G. Slope (ft/ft) +0.002420 * Area (sq E[) ' 3.10 + 2261.24 * 1056.10 •
* Q Total (Cfs) *16700.00 * Flow (cfs) * 2.16 *16679.40 * 18.44 *
' Top Width (ft) * 1962.61 * Top Width (ft) * 5.56 * 277.00 + 1580.04 *
" Vel Total (ft/s) * 7.32 • Avg. Vel. (ft/s) � 0.70 • �.38 � 1.08 •
` Max Chl Dpih (fU ' 11.11 * Hydz. Depth (ft) * 0.56 * 8.16 � 1.06 *
• Conv. Total (cfs) *339501.9 * Conv. (cfs) * 43.9 +339083.1 * 374.9 *
• Length Wtd. (ft) • 5.00 * wetted Pez. (ft) * 5.67 * 278.81 * 16.35 *
* Min Ch E1 (ft) ' 4822.00 * Shear Qb/sq fU ' 0.08 * 1.23 ' 0.16 R
+ Alpha + 1.01 * Stream Power (lb/ft s) • 0.06 * 9.04 * 0.17 *
* Frc[n Loss (fU * 0.01 # Cum Vol�me (acre-ft) a 28.79 • 178.60 ' 644.25 *
` C & E Loss (f[) � 0.06 * Cum SA (acres) • 6.53 * 17.34 � 181.39 •
11aiA₹*1!!v!;#�!#ii#Y#!#4#ii4�.l�.l�.!#k1#+}YT4i*k*f#1h�.11f#1if1Y4}₹4R+*<4!1#k414i*i*1k*f1t11k1h1ii#;t1R
warning: Divided flow computed for [his cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPI7T Profile #500 year
...+..�i+t��:.::.+.r.r:x��xt.:..:a.wwx+....«twt.::xx+r.wr:w�FRxw+�:y�t:t:x.:ra�+�a�: wx w���rrx
* E.G. Elev (fU * 4842.32 * Element + Lef[ OS • Channel*+ Right OB *
• Vel Head (ft) * 1.26 • Wt. n-Val. * 0.0'l0 * 0.040 * 0.0�0 *
* W.S. Elev (Et) * 4841.06 ' ReaCh Len. (ft) • 5.00 • 5.00 * 5.00 *
R Crit W.S. (fU ' 4833.96 • Flow Area (sq f[) � 204.97 i 4461.15 + 230.43 •
Page 26
STVRAIN.rep
• E.G. Slope (f[/tt) *0.001499 * Acea (5g ft) * 2864.51 * 4461.15 `18070.25 * �
' • Q Total (cfs) *41960.00 ' Flow (cfs) � 454.98 '40737.46 * 767.56 *
" TOp Width (ft) * 3387.35 " Top Width (ft) • 681.87 * 277.00 • 2428.48 '
* Vel TOtal (ft/s) " 8.5"! ' Avg. Vel. (ft/S) * 2.22 * 9.13 ' 3.33 '
• Max Chl Dpth (ft) ' 19.05 ' Hydr. Depth (ft) ' 4.53 * 16.11 * 8.23 '
* Conv. Total (cPs) '"1083877.0 * Conv. (cfs) * 11752.6 *1052297.0 ' 79827.1 *
* Length Wtd. (ft) * 5.00 ' Wetted PeL (fU * 46.17 * 276.81 R 28.24 •
� Min Ch E1 (ft) * 4822.00 ' Shear (lb/sq ft) * 0.42 ' 1.50 * 0.76 *
t Alpha " l.11 * Stream Power (lb/ft s) "' 0.92 * 13.67 * 2.54 *
• Frctn Loss (ft) ' 0.01 * Cum Volume (acre-ft) t 56.10 • 236.56 " 1283.30 R
* C 5 E Loss (fU ' 0.08 • Cum SA (aCres) ' 7.81 ^ 17.40 * 205.28 *
���::r:::�+:.��..:x:.aat:tFt::F�+wi�ww�r+.xwRryxx.xr�w:�i��.+i::i�F..i�+++�i+i�r�r+rr�F�t+�++a�ai
Wazning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth wi[h the lowes[,
valid,
water surface was used.
CROSS SECTION OUTPOT Pmfile #10 year
xwrx:x�x..t:�:,.:s.::it�ira��.�.r+x:w.:x+a�+�+�t+�istt�ri+rwRxr�.x+xRw.R.++i+��+�+ai+rFa�+iWtwx �
* E.G. Elev (fU ` 4829.07 * Element R Left OH * Channel � Right OB "
t Vel Head (fU * 0.52 • Wt. n-Val. * * 0.040 * *
w W.S. Elev (fU * 4828.55 * Reach Len. (fU * 5.00 " 5.00 + 5.00 *
* Crit W.S. (ft) * 4826.97 * Flow Area (sq f[) * * 1028.28 ' •
* E.G. Slope (ft/fU *0.003798 ` Area (sq ft) • ' 1028.29 * '
* Q Total (Cfs) * 5950.00 * Flow (cfs� * * 595U.00 * •
"' Top width (ft) ` 25a.95 * Top Width (fU ` " 254.95 w *
• Vel Total (ft/s1 * 5.79 * Avg. Vel. (ft/s) * • 5 J9 ' *
t Max Chl Dpth (ft) * 6.55 * Hydr. Depth (ft) * • 4.03 � `
* Conv. Total (cfsl 96550.3 * Conv. (cfs) * ' 96550.3 * *
* Length Wtd. (ft) ' 5.00 * Wetted Per. (ft) * * 255.89 * *
* Min Ch E1 (ft) * 4822.00 * Shear (lb/sq ft) * * 0.95 � *
* Alpha • l.00 * Stream Power (lb/ft s) * * 5.51 * *
• FYCtn Loss (fU ` 0.02 * Cum VOlume (aCre-ft) • 13.40 • 129.42 ' 186.26 *
+ C 5 E Loss (ft) * 0.06 * Cum SA (acres) * 3.62 * 17.07 * 126.42 *
+i�ix+..,r�t.�:�tiir++++ax:.x:tt�+xr�xkai��,����it+a++�r,��r,r,a�.xx:t.t+t�tit����xr,rarx:r+t++�w+t+•
I
' Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION 0[7TPUT Profile p50 year
FiSFM'.lfFFMf#t4+kklt#lkiti41+1:1M�#t��i1R��ivlAkl:lRk4w#!#R1iii14Sfrtliht�i+#i##iY#4ii#ktYfk4R4lfekii
* E.G. Elev (ft) * 4832.33 * Element * Left OB * Channel * Right OB *
* Vel Head (fU • 0.76 ' W[. n-Val. * R 0.040 * 0.070 *
' W.S. Elev (ft) ' 4B31.57 • ReaCh Len. (ft) " 5.00 * 5.00 * 5.00 �
� Crit W.S. (fU * 4828.83 * Flow Area (sq ft) ' ' 1834.89 * 1.26 *
' E.G. Slope (ft/fU *0.002865 • Area (sq fU ' * 1834.89 * 1.47 *
" Q Total (cfs) •12850.00 � Flow (cfs) ' *12849.38 + 0.62 *
� Top Wid[h (ft) * 298.36 * Top Width (ft) * � 275.89 * 22.47 *
* Vel Total (ft/s) * 7.00 * Avg. Vel. (ft/s) ' ' 7.00 " 0.49 •
t Max chl Dpth (fU • 9.57 * Nydr. Dep[h (Pt) a * 6.65 * 0.29 *
* Conv. Total (cfs) *240069.4 • Conv. (cfs) * *240057.B * 11.5 a
* Length wtd. (f[) * 5.00 * Wetted Per. (ft) ' * 27'7.62 * 4.43 �
* Min Ch E1 (ft) * 9822.00 * Shear (Ib/sq ft) * * 1.18 i 0.05 •
* Alpha * 1.00 * Stream Power (lb/ft s) • • 8.28 * 0.02 '
* Fzctn Loss (fU * 0.02 * Cum Volume (acre-fU • 23.66 * 165.05 * 505.08 *
' C & E Loss (ft) . 0.07 * Cum SA (acres) ' 5.59 * 17.30 � 173.76 *
ta..�.w��xx+iiiw�.�x:x;+i�+r.k++++tr�i:�:++e�rr�w�a+�r+rr�sr�rxwt.r,.xxxt+«i+�ii�rrx+�+*++rr:wwrxr
warning: Divided flow computed for this cross-section.
Note: Multiple cri[ical depths were found at this location. The critical depth with [he lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction RS: 71765
INPUT
Description: The blocked obstruction on [he left overbank is because flow
? canno[ physically get to this azea during the 100-year storm. The
Page 29
� STVRAIN.rep
flow will not overtop I-25 and the bank between I-25 and the �
. fron[age road is at an eleva[ion of 4836. During the 500-year
event, shallow ponding will be present at this low point in the
road, however, it will be ineffective flow because [he flow will
no[ overtop I-25.
Station Elevation Data num= 36
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
R1Fi4*44f4ii₹Yt�i#fi4+iii+fii+#i#I#1A}F1ltt#k4#i#Allx#1k##1+YYfxRkttFY�11i4YiR1N
740 4840 800 4834 1000 4832.2 1449 4845 1596 4844.1
1700 4843.5 1847 4842.6 1877 4842.4 1905 4842.2 1976 4825
2072 4829.25 2115 4822.7 2159 4822.7 2182 4828.05 2326 4828.55
2471 4828.55 2648 4828.65 2782 4828.05 2800 4828.05 2934 4827.75
2954 4824.85 2974 9824.85 2992 4828.25 3125 4830.15 3149 4830.15
3356 4830.25 3489 4830.55 3617 4829.85 3777 4B30.B5 3786 4826.55
3802 4826.55 382� 4831.15 3965 4831.95 4116 4833.05 4312 4834.55
4312.1 4834.55
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val �
+«+....+x+++.+...x..+«...x..w.:...........x.�..+
740 .0� 19�6 .04 2182 .07
Bank Sta: Left Righi Lengths: LefC Channel Right Coeff Contr. Expan.
1976 2782 30 30 30 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev Permanent
740 1905 4843 F
2245 4312.1 4843 F
Blocked Obstructions num= 1
Sta L Sta R Elev
airrt�+�Ra++t+wxixa.R+.:
940 1949 4836
CROSS SECTION OUTPUT Profile N100 year
++i..++.r.x+xx.xxar.x.x:.::r.:�tFa+a.++*+:Ft��i++rrxxx:.�t+�+++r*..+.:.:iti�i+Kxx:x.t++.r.�+�w+
* E.G. Elev (fU * 4833.88 * Element * Left OB * Channel * Right OB *
� Vel Head (ft) ' 1.05 * Wt. n-Vdl. * 0.070 * 0.040 * 0.070 �
• W.S. Elev (ft) ' 4832.83 t ReaCh Len. (ft) ' 30.00 * 30.00 * 30.00 `
' CYit W.S. (ft) R 4830.04 ` Flow AYea (sq ft) ' 126.46 * 1806.63 * 294.11 *
� E.G. Slope (ft/ft) *0.002925 ' Axea (sq ft) • 126.46 * 1806.63 k 6382.58 *
* Q Total (cfs) *16�00.00 * Flow (cfs) * 353.76 *15403.13 * 943.12 *
� • Top Width (ft) * 2141.80 ' Top Widih (ft) * 32.37 * 206.00 * 1903.49 *
* Vel Total (ft/s) ' 7.50 � Avg. Vel. (ft/s) * 2.80 * 8.53 * 3.21 +
i Max Chl ➢pth (ft) * 10.73 * Hydr. Depth (fU * 3.91 � 8.77 * 4.6� *
r Conv. Total (cfs) '308798.6 R Conv. (cfs) * 6541.3 *284B18.2 * 17439.1 *
� Length W[d. (ft) * 30.00 * Wetted Per. (ft) * 33.25 � 206.64 * 63.00 t
* Min Ch E1 (Et) * 4822.�0 a Shear (lb/sq £U * 0.69 � 1_60 * 0-BS *
� Alpha ' 1.21 * Stream Powei (lb/ft s) * 1.94 * 13.61 * 2.73 '
* Frctn Loss (ft) " 0.09 • Cum Volume (acre-ft) * 28.78 * 198.36 ' 643.82 �
� C fi E Loss (ft) ' 0.01 * Nm SA (acYes) * 6.53 * 17.31 ' 1ffi.79 '
Mw.x.wx+xM+arxx»»xKx�xx�xw.xw..:.�.��x+».::x�t�t:++*.::..::.+.tR.�..«x++.:rr:t�t+�+�.x..++tx+++
Note: Multiple critical depths were found at this location. The critical depih with the lowest,
valid,
water sur£ace was used.
CROSS SECTION OUTPUT Piofile #500 year
1M*xxxtxF+flFftx£/t;FikfFt;M#+fkiY*f%RfTRk#k##nhi4lM#ifi4+#+#*#R**#i!Alt4x1k+I4*+i##rtM#4fMhF+xh
* E.G. Elev (ft) * 4842.22 * Element * Left OB * Channel * Right OB *
x Vel Head (f[) * 1.54 * wt. n-Val. * 0.070 * 0.040 * 0.070 *
" W.S. Elev (ft) • 4840.68 * Reach Len. (ft) * 30.00 * 30.0� � 30.00 *
� Crit W.S. (ft) * 4834.45 * Flow Area (sq fU ' 5�7.60 * 3424.96 ' 789.04 *
* E.G. Slope (ft/fU *0.001914 * Area (sq ft) ' 2654.44 * 3424.96 *22922.45 �
* Q To[al (cfs) *41960.00 * Flow (cfs) * 1825.82 *36182.46 * 3951.72 *
� Top Width (fU * 2958.43 * Top Width (ft) R 622.33 • 206.00 * 2130.30 *
• Vel Total (ft/s) * 8.89 * Avg. Vel. (ft/s) R 3.60 * 10.56 * 5.01 *
* Max Chl Dpth (ft) * 17.98 � Hydr. Depth (£U * 7.84 * 16.63 * 12.52 *
t Conv. Total (c£s) k959138.9 • Conv. (cfs) * 41735.3 �827073.6 * 90329.9 �
• Length Wtd. (ft) * 30.00 t Wetted Per. (ft) * 66.61 * 206.64 " 63.00 '
t Min Ch E1 (fU * 4822.70 * Shear (lb/sq ft) t 0.91 + 1.98 * 1.50 *
* Alpha * 1.26 ` Stream Power (lb/ft s) * 3.27 • 20.92 * �.49 �
� Fzctn Loss (fU * 0.06 � Cum Volnme (acre-fU * 55.70 * 236.11 ' 1280.95 *
* C & E Loss (ftl ' 0.06 * Cum SA (aCYes) * ���4 ' 17.37 ^ 205.02 '
hi#YiFnhYYn4i##+w*#�k4#TA#xRkki######f1Ak*#!*AfY41Y##M#ii1ik111tftIR#4lY141i111lfi11x1FxhxRttYtR
Page 30
STVRAIN.rep
y
. � Warning: Divided flow computed for this cross-section.
warning: The cross-section end points had to be extended ver[ically for the computed water surface.
Note: Multiple critical depths were found at this location. The critical depth with [he lowest,
valid,
water surface was used.
CROSS SECTI0N OUTPU2 Profile #10 year
i141t1Fx+#11x11ff+i#kYii#Y1f1iYi11xfw1x*Rl4Ri}#14441#ifi#ii1Yi4Y1YffxiA!##*ki4*t%Yi1�4itti4�1f1
* E.G. Elev (ft) • 4828.99 + Elemen[ * Left OH • Channel � Right OH *
* Vel Head (fU * 0 J1 * wt. n-Val. * 0.070 • o.040 � 0.070 *
' W.S. Elev (ft) • 4828.28 • Reach Len. (fU ' 30.00 � 30.00 • 30.00 *
* Crit W.S. (ft) * 4827.00 * Flow Area (sq ft) * 22.16 * 869.07 * 7.38 *
� E.G. Slope (f[/ft) ^0.004924 � Area (sq ft) * 22.16 � 869.07 + 245.64 "
* Q Total (cfs) * 5950.00 * Flow (cfs) * 45.00 * 5902.37 * 2.63 *
* Top Width (f[) * 576.21 * Top width (fU ' 13.52 * 206.00 * 356.68 *
+ Vel Total (ft/s) * 6.62 ' Avg. Vel. (£t/s) * 2.03 + 6 J9 ` 0.36 *
t Max Chl Dpth (fU • 5.58 t Hydr. Dep[h (ft) * 1.64 * 4.22 * 0.12 *
* Conv. Total (cfs) * 84794.2 * Conv. (cfs) ' 647.3 • 64ll5.5 * 37.5 * .
* Length Wtd. (fU ' 30.00 " Wet[ed Per. (ft) " 13.92 • 2D6.64 * 63.00 *
* Min Ch E1 (ft) * 4822.70 * Shear (lb/sq ft) • 0.49 * 1.29 * 0.04 k
` Alpha " 1.04 * S[ream Power (lb/ft s) � 0.99 * 8.78 * 0.01 *
* FiCtn Loss (ft) * 0.16 ' Cum Volume (aCre-ft) * 13.40 * 129.31 • 186.24 �
* C & E Loss (ft) * 0.02 • Cum SA (acres) * 3.62 • 17.�4 � 126.40 •
x.•x..+.k+�......r..+....+�.«.:.:.:e..«�.:xxxx.:+.«.+++..w...+.+::w�.:.+:.+...::...+:r........,
Warning: Divided flow computed for [his cross-section.
Note: Multiple critical depths were found at this locaCion. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION WTPIIT Profile q50 year
1iMixxlixhx!#ti4i4i4it1i1�lA1Ml4lFtYklfl+ft4F£#�441i#FtYlfail4likfFiFi#4i41/1Afxx1�lfii444iYF#4
* E.G. Elev (fU ` 4832.25 * Element * Left OB * Channel * Right OB *
* Vel Head (ft) ' 0.98 * W[. n-Val. * 0.070 * 0.040 * 0.070 ;
* W.S. EleV (ft) * 4831.27 • ReaCh Len. (ft) * 30.00 • 30.00 * 30.00 *
j * Crit W.S. (ft) * 4829.14 * Flow Area (sq ft) * 81.25 * 1486.67 * 196.26 R
�.� * E.G. Slope ([t/ftl *0.003464 i Area (sq fU 81.25 ` 1486.67 * 3599.69
� Q Total (cfs) �12850.00 " Flow (cfs) • 213.46 *12113.53 * 523.02 rt
* Top Width (ft) * 1896.3� " Top Width (fU ' 25.90 * 206.00 * 1666.47 *
* Vel Total (ft/s) * ?.28 ' Av9. vel. (ft/s) x a.63 � 8.15 * 2.66 �
* Max Chl Dpth (ft) � 8.57 � Aydr. Depth (ft) * 3.14 * 7.22 * 3.12 •
* Conv. Total (cfs) *218326.9 R Conv. (cfs) * 3626.7 *205813.9 * 0886.3 `
* Length Wtd. (ft) * 30.00 * Wetted Per. (ft) * 26.65 * 206.64 • 63.OU '
* Min Ch E1 (ft) R 4822.70 � Shear (lb/sq ft) * 0.66 * 1.56 • 0.67 `
* Alpha ' 1.19 • Stream Power Qb/ft s) * 1.�3 * 12.68 * 1.80 *
* Frctn Loss (ft) * 0.11 � Cum Volume (acre-ft) * 23.66 • 164.86 * 504.88 *
* C 4 E Loss (ft) * 0.01 * Cum SA (acres) * 5.59 * 17.27 • 173.6� '
fxxl4fi!#4i#41#1iY*lktt!#it##fx%Rfxt+##ikhlxRtfh*Fliiihl��sRiFtit4I11F4t!l4iF144#�*1*tRrF11RRR♦
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used. �
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Sunc[ion RS: 71735
INPUT
Description: This Cross-section is the upstream edge of the rip-zap rundown.
Ineffective flow exists in the left and right overbank of this
cross-section hecause of the elevation of I-25.
Station Elevation Data num= 31
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
+�::a.+.:.::+..R.a+....::......+.:�++:+.:�«.++....�..+.......+«+..+.a.�w:.�...:.
1866 4834 1991 4826.56 2009 4626.48 2022 4822.34 2057 4822.78
2089 4823.35 2134 4823.91 2170 4825.12 2211 4826.52 2326 4828.42
2471 4828.42 2648 4828.52 2782 4827.92 2800 4827.92 2934 4827.62
2954 4824.72 2974 4824.72 2992 4828.12 3125 4830.02 3149 4830.02
3356 4830.12 3489 4830.42 3617 4829.72 3777 4830.72 3786 4826.42
3802 4826.42 3827 4837.02 3965 4831.82 4716 4832.92 4312 4834.42
. 4312.1 4834.42
Page 31
STVRAIN.zep
)
. Manning's n Values num= 3
Sta � Val Sta n Val Sta n Val
.....���a.k...+....+...+.+.....+...+.++..+�.�.++
1866 .07 1991 .04 2211 .07
Hank Sta: Left Right Lengths: Lef[ Channel Right Coeff Contr. Expan.
1991 2211 67 6� 67 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev Permanent
1866 1866 4843 F
2211 4312.1 4843 F
Hlocked Obstructions num= 1
Sta L Sta R Elev
..».+..x.++»w........+..
1866 18�7 4824
CROSS SECTION OUTPUT Profile p100 year
.a:..a+..+.:.,xk.:+:...+.:..:+t.a....+..>«.r.:.x+.+:..xx.::.......+.•�x.+e++++..+...+.......x.x
* E.G. Elev (ft) * 4833.78 * Element " Left OH � Channel * Right OH *
* Vel Head (f[) * 1.08 * wt. n-Val. * 0.070 * 0.040 * � �
* W.S. Elev (ft) * 4832 JO � Reach Len. (ft) * 67.00 * 67.00 � 67.00 *
* Crit W.S. (ft) * 4829.92 * Flow Area (sq ft) * 377.07 � 186�.91 * �
* E.G. Slope (ft/ft) *0.003050 * Area (sq ft) + 317.0� * 7867.91 • 6342.82 "
k Q Total (cfs) x16700.00 * Flow (cfs) * 784.55 *15915.45 ' '
* Top Width (ft) 3 2198.53 � Top Width (ft) * 103.22 * 22�.00 * 1875.31 �
• Vel Total (ft/s) * 7.64 * Avg. Vel. (ft/s) * 2.47 * 8.52 ' *
* Max Chl Dpth (Et) � 1�.36 * Hydr. Depth (ft) * 3.07 � 8.49 * *
* Conv. Total (cfs) *302384.2 * Conv. (cfs) i 14205.7 *288178.6 * *
* Length Wtd. (ft) 3 67.00 • Wetted Per. (ft) * 103.40 * 220.70 * *
* Min Ch E1 (ft) * 4822.34 * Shear Ilb/sq Et) + 0.58 * 1.61 • *
• Alpha * 1.19 * Stream Power (lb/ft s) * 1.44 * 13.�3 * *
F Frctn Loss (ft) * 0.37 � Cum Volume (acre-ft) * 28.63 * 177.10 ' 639.44 �
* C & E Loss (ft) * 0.62 � Cum SA (acres) * 6.48 * 17.17 * 179.89 �
i5**Kttffkth*+4*t+4Y4iItI##Ii1HKx1R1Rxlhk}4�iti4##F+w1#Y#FiixlikilYY+llffR11f1#1lxxxhtxR#1}FatF
Warning: The velocity head has changed hy more than o.s ft (0.15 ml . This may indicate the need for
- additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.� or greater [han 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile p500 year
i4#*1134ii#t#1#4#ilk*i##4#kil#4#i##l�i1#ii+*A1ik4#ki}ltikktfllikh*!1#Y5kRY#tfitlkk4iYi1ftS1XYh4N
* E.G. Elev (ft) * 4842.11 * Element R Left OH * Channel * Right oB *
* Vel Aead (ft) * 1.42 * Wt. n-Val. ' 0.070 • 0.040 * *
* W.S. Elev (fU ' 4840.69 ' Reach Len. (ft) * 67.00 * 67.00 ' 67.00 •
' Crit W.S. (ft) * 4834.64 * Flow AYea (sq ft) ' 1301.30 * 3625.01 * '
� E.G. Slope (ft/ft) *0.001771 * Area (sq ft) � 1301.30 * 3625.01 *22931.14 *
* Q Total (cfs) *41960.00 * Flow (cfs) " 5346.42 *36613.58 ' *
* Top Width (ft) * 2446.1D * Top width (ftl * 125.00 * 220.00 " 2107.10 *
* Vel Total (ft/s) ' 8.52 * Avg. Vel. (ft/s) ' 4.11 * 10.10 * +
* Max Chl Dpth (ft) ' 18.35 * Hydr. Depth (ft) * 10.41 * 16.48 ' �
* Conv. Total (cfs) *997187.5 • Conv. (cfs) *127058.6 *870128.9 * •
• Length wid. (ft) 6�.00 � Wetted Per. (ft) * 131.91 * 220.70 * *
* Min Ch E1 (ft) R 4822.34 R Sheaz (lb/sq ft) * 1.09 * 7.82 * *
t Alpha * 1.26 * SCLeam Power (lb/ft s) + 4.48 * 18.34 • t
* Frctn Loss (ft) * 0.23 * Cum Volume facre-ft) � 54.42 * 233.68 * 1265.16 i
* C s E Loss (ft) * 1.25 * Cum SA (acres) R 7.48 • 17.22 * 203.56 *
iY#iY#ii414ifYkiiY#4i+YYY₹i1i#Y�4#YY#ffYilYiit4k141fYY411fi1i14Yl1t1kAY14#1kf141Y411YfY44#S1#R•
Warning: The cross-section end points had to be extended vertically for the computed water surface.
warning: The velocity head has changed by more than o.s ft 10.15 m) . This may indicate ihe need foz
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less ihan
0.7 or greater than 1.4. This may indicate the need Eor additional czoss sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indica[e [he need for additional cross sections.
Note: Multiple critical depths were found at this location. The cri[ical depth with the lowest,
valid,
� water surface was used.
Page 32
STVRAIN.zep
� CROSS SECTION OUTPUT Profile p10 yeax
liiii##iit�liYYYik4if*A#1Wf�#iii#�{#4#44h}Axltt4ffif##ff+i4kYi#1i4x4xf1f�;;lfii#f#t4h#*4f11/#4i
* E.G. Elev (ft) t 4828.81 • Element • LefC OB * Channel • Right OB *
R Vel Head (ft) * 0.76 * Wt. ❑-Val. � 0.070 * 0.040 * *
* W.S. Elev (ft) + 4828.04 * Reach Len. (fU • 67.00 * 67.00 * 67.00 �
' Crit W.S. (fU * 4827.08 * Flow Area (sq fU * 18.49 w 842.68 ' •
• E.G. Slope (ft/fU *0.006003 � Area (sq fU " 18.49 * 842.68 * 279.8� *
t Q Total (cfs) " 5950.00 * Flow (cfs) * 24.88 * 5925.12 * w
' Top Width (ft) * 602.54 + Top Width (f[) � 24.92 * 220.00 " 357.61 *
* Vel Total (ft/s) * 6.91 ` Avg. Vel. (f[/s) * 1.35 � 7.03 ' *
* Max Chl Dpth (fU * 5 Jo + Hydr. �epth (fU + 0.74 * 3,83 * *
* Conv. Total (cfs) * 76793.2 � Conv. (cfs) * 321.1 � 764�2.1 � *
* Length Wtd. (fU * 67.00 * Wetted Per. (ft) * 24.97 * 220.70 � �
* Min Ch E1 (ft1 ' 4822.34 * Shear (lb/sq ft) * 0.28 * 1.43 * •
* Alpha * 1.03 * Stream Power (lb/ft s) • 0.37 * 10.06 • •
� Frctn Loss (ft) • 0.48 k Cum Volume (acre-ft) * 13.39 * 128.72 R 186.06 *
* C & E Loss (Et) * 0.10 * Cum SA (acres) * 3.61 * 16.89 * 126.15 *
4+YY#i}t*xkxAfRlk*Y*ttt###ix�#!i###1hhkAk4iMk4kfiiiYtkkY4{tR44#�i4!*f#Mxl4#xAfxiAlilYi##4Yifftk
Warning: Divided flow computed for this cross-section.
Note: Multiple czitical depths were found at this location. The cri[ical depth with che lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT PLofile�H50 yeaY
•.+r*+ar�a++::ax+t�r.�xxrxY��+�»�;wi«�x+iixt.xt�ii�.t�.�++��ra���a+e+++<+�:�+t��RRa:�.w�x+�+�•
* E.G. Elev (ft) * 4832.13 k Element * Left OB * Channel � Right OB *
* Vel Head (fU " 1.02 * Wt. n-Val. * 0.070 * 0.040 * *
� W.S. Elev (ft) * 4831.12 * Reach Lea. Ift) � 67.00 • 67.00 * 67.00 •
* Crit W.S. (ftl * 4828.99 * Flow Area (sq ft) * 174.50 * 1519.00 * r
* E.G. Slope (ft/ft) *0.003724 * Area (sq ft) * 174.50 * 1579.00 • 3550.01 *
* Q Tota1 iCfs) *12850.0o • Flow (cfs) ' 390.96 *12459.04 R +
* Top Width (ft) • 1929.42 ' Top Width (ft) * 76.57 * 220.00 � 1632.85 *
* Vel Total (Et/s1 * 7.59 * Avg. VeL (ft/s) * 2.24 * 8.20 * "
* Max Chl Dpth (ft) * 6.78 * Hydr. Depth (ft) * 2.28 * 6.90 * +
* Conv. Total (cfs) *210580.6 t Conv. (cfs� * 6406.8 *204173.6 * *
{ * Length Wtd. (fU * 67.00 * wetted Per. (ft) • 76.71 � 220.70 * *
.�° * Min Ch E1 (ftl * 4822.34 x Shear (lb/sq ftl • 0.53 * 1.60 • *
* Alpha * 1.74 ! Stream Power (lb/ft s) • 1.18 ' 13.12 • *
* Frctn Loss (ft) * 0.41 • Cum Volume (acre-ft) • 23.57 * 163.82 * 502.41 *
• C & E Loss (ft) * 0.43 • Cum SA (acres) * 5.56 * 17.12 • 172.53 *
♦!xRlxi4RAfIRFttxAiltAx*AAx*xf*!}RxTf!*1kFilikiitt!#4114fi#####t#i+ii#iiiiWii#k##₹#*ii##YY#!4S#
warning: The velocity head has changed by more than o.5 ft (0.15 m) . This may indicate the need for
addi[ional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downs[ream conveyance) is less than
0.7 or greatez than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water suzface was used.
CROSS SECTION
RIVER: St. vrain River
REACH: I-25 to Junction RS: 71701
INPOT
Description: Ineffective flow exiats in the left overbank of this cross-section
because of the elevation of I-25.
Station Elevation Data num= 32
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
•1f111i11TYYi'.!'.lfR�.tikkhlkkM*4#i!#YiiY4Rf1ff14F1:1#lRk14Yk44#YYi4�.Y*411*1A*R1fi#i#:!i
1897 4840 1944 4834.07 1975 4826.56 2002 4824.57 2026 4821.95
2091 4822.39 2095 4823.26 2128 4823.18 2159 4824.29 2206 4827.88
2326 4828.49 2471 482B.49 2648 4828.59 2782 4827.99 2800 4827.99
2934 4827.69 2954 4824.79 2974 4824.79 2992 4828.19 3125 4830.09
3149 4830.09 3356 4630.19 3489 4830.49 3617 4829.79 3777 4830.79
3786 4826.49 3602 4826.49 3827 4831.09 3965 4631.89 4116 4832.99
4312 4834.49 4312.1 4834.49
Manning's n Values num= 3
� **` *S;af1R*F*a�l»y*{{Sta n Val Sta n Val
. ,..+...::.:.:w:..xxa...+.r+
Page 33
STvf2AIN.rep _
189"] .07 1975 .04 2206 .07
� Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Eupan.
1975 2206 34 34 34 .3 .5
Ineffective Flow num= 2
Sta L S[a R Elev Permanen[
1897 1897 4843 F
2158 4312.1 4843 F
Blocked Obstructians nnm= 1
Sta L Sta R Elev �
•rt=x::+x�+iia�:.,«�ai�r
1B9"] 1877 4824
CROSS SECTION OUTPUT Profile #100 year
f�.lfAF'.!'.lRkn#ktYtftft+Ihf'Y#f4ti4ikil�4FlifkA'.!'.l4A14rtMhi4[�#44i�hikA**i#k4Mt#A4i#i1i#h++Wk#ik+*�#�.l1
" E.G. Elev (ft) * 4832.79 * Elemen[ * Left OB * Channel ' Right Oe *
' Vel Nead (fU * 3.16 * Wt. n-Val. � 0.070 * 0.040 � •
* W.S. Elev (ft) * 4829.64 * Reach Len. (ft) * 34.00 * 34.00 * 34.00 *
* Crit W.S. (fU * 4829.64 * Flow Area (sq fU k 19.51 * 1164.53 * • �
* E.G. Slope (ft/ft) �0.0125�6 � Area (sq ft) • 19.51 * 1336.73 � 1365.9� *
* Q Total (cfs) *16700.00 * Flow (cfs) * 60.71 "'16639.29 * +
* Top Width (ft) * 1ll0.51 * Top Width (ft) * 12.69 * 231.00 * 926.82 *
* Vel Total (ft/s) * 14.10 • Avg. Vel. (ft/sl • 3.11 t 14.29 * +
* Max Chl Dpth Ift) * 7.68 • Hydr. �epth (ft) * 1.54 * 6.36 * *
• Conv. Total (cfs) *148917.5 * Conv. (cfs) * 541.3 *148376.1 * *
� Length Wtd. (fU ^ 34.�0 * Wetted PeY. (ft) * 13.06 ' 183.33 • <
* Min Ch E1 (ft) R 4821.95 * Shear (lb/sq ft) * 1.17 * 4.99 * •
* Alpha * 1.02 * Stream Power Qb/ft s) + 3.65 * 71.26 * •
� Prctn Loss (fU • 0.09 * Cum Volume lacre-ft) * 28.37 * 174.63 * 633.51 �
* C & E Loss (fU * 1.31 * Cum SA (acres) +� 6.39 * 16.82 "' 177.73 *
k�.!'.lM1+R1�.liftttx;t}A'.!�#i##i#*ik#}#F1ki+li+�##RA11+4'.11fkiY#lfiifff�li*Yiiitt;}Y4i###4t4�.l4ihi#*+#*•
Warning: The energy equation could not be balanced wi[hin the specified number of iterations. The
program selected the water surface that had ihe least amount of erior between computed and
assumed values.
Warning: Divided flow computed for this cross-section.
warning: The velocity head has changed by more than o.5 ft (0.15 m1 . This may indicate the need for
� additional cross sections.
� Warning: The conveyance ratio (upstream conveyance divided by downs[ream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
- Warning: The energy loss was greater than 1.0 ft (0.3 m� . hetween the current and previous cross
section. This may indicate the need for additional cross sections.
Warning: �uring the standard step iterations, when the assumed water suzface was set equal to critical
depth, [he calculated water surface came back below critical depth. This indicates tha[ there
is not a valid subczitical answer. The progzam defaulted Co critical depth.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Pzofile q500 year
xxw+w+�+�a::.:wxrai++i+�+sxx.,r+�+xxi+xwRxxrkrr���rt:.�ax.x��xe�Me.��Re�i�+t*..s�wr.wa+a�x+iai+�•
* E.G. Elev (ftl ' 4840.62 * Element < Left OB x Channel � Right OH *
* Vel Head (ft) • 5.58 • Wt. n-Val. * 0.070 * 0.040 • *
' W.S. Elev (ft) * 4835.04 ' ReaCh Len. (ft) * 34.00 * 34.00 • 34.00 +'
" Crit W.S. (fU + 4835.04 * Flow Area (sq ft) * 150.17 * 2153.52 * •
* E.G. Slope (ft/ft) *0.009927 * Area (sq ft) � 150.17 * 2585.13 •10869.94 *
' Q Total (cfs) *41960.00 • Flow (cfs) * 771.85 '41188.15 • •
* Top Width (ft� * 2375.78 * Top Width (ft) * 38.68 * 231.00 * 2306.10 *
* Vel Total (ft/s) * 18.21 * Avg. Vel. (ft/s) * 5.14 * 19.13 * �
' Max Chl Dp[h (ftl * 13.09 * Hydr. Depth Ift) * 3.88 * 11.77 � *
* Conv. Total (cfs) *421136.6 * Conv. (cfs) * 7746.8 •413389.8 + *
* Length W[d. (ftl # 34.00 * Wetted Per. (ft) * 39.64 * 183.33 + +
* Min Ch E1 (ft) * 4821.95 * Shear (lb/sq ft) * 2.35 * 7.28 • •
a Alpha * 1.08 • Stream Power (lb/ft s) • 12.07 * 139.24 * t
* Frctn Loss (f[) � 0.15 � Cum Volume (acre-ft) * 53.30 * 220.91 * 1239 16 *
"' C k E Loss fft) � 1.96 * Cum SA (acres) * 7.35 * 16.BB • 200.33 *
w.��+�r��xxrxw.+Rar::«e+x�.:wa+w+xti++tx+.:x:xxr+r:x+:x�x��xt+�t�x�::x�»r»i�t�++���w�:�+��at+�t
Warning: The energy equation could not be balanced within the specified nurt�6er of iterations. The
program used critical depth for the water surface and continued on with the calculationa.
Warning: The cross-section end points had to be extended vertically for the computed water surface.
Warning: The velocity head has changed by more than 0.5 ft 10.15 m) . This may indic:ate the need for
additional cross sections.
' Warning: The conveyance ratio (upstream conveyance divided by downstzeam conveyance) is leas than
Page 34
STVRAIN.rep
� 0.� or greater than 1.4. This may indicate the need for additional cross sec[ions.
� warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Warning: �uring the standard step iterations, when the assumed water surface was set equal to critical
depth, the calculated water surface came back below critical depth. This indicates that theze
is not a valid subcritical answer. The program defaulted to critical depth.
Note: Multiple criLical depths were found at this location. The critical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION OUTPUT Pcofile #10 year
aax+tw�.i�ti.:+..+a«triiti:�a�twiiai»ixaHrx++r�w..++tti+«i+ii++a�x��i�.�wwxyxxxw�r�ar:..:xx�*wx
� E.G. Elev (fU * 4828.23 * Element ' Left OB � Channel * Right OB *
* Vel Head (ft) ' 1.10 ' Wt. n-Val. ' 0.070 * 0.040 R +
' W.S. Elev (fU ' 4827.13 ` Aeach Len. (fU ' 34.00 * 34.00 ' 34.00 3
* Ciit W.S. (fU • 4826.47 * Flow Area (sq fU ` 0.67 * 706.32 * *
� E.G. Slope (ft/fU *0.008513 * Area (sg f[) • 0.67 * �62.00 � 92.01 •
* Q To[al (cfs) * 5950.00 � Flow (cfs) ' 0.56 • 5949.44 * t
' Top width (ft) ' 292.91 * Tap Width (fU ' 2.36 * 221.19 * 69.36 *
+ Vel Total (ft/s) ' 8.42 • Avg. Vel. (ft/s) * 0.83 * 8.42 * •
• Max Chl Dp[h (ft) * 5.18 ' Hydr. Depth (fU ' 0.29 ^ 3.86 * *
* Conv. Total (cfs) * 64488.9 + Conv. (cfs) * 6.1 ' 64482.8 � *
� Le�gth Wtd. (ft) ' 34.00 * Wetted Per. (f[) * 2.42 • 183.33 * *
* Min Ch £1 (ft) rt 4821.95 ^ Shear Qb/sq ft) * 0.15 t 2.05 ' '
* Alpha ' 1.00 * Stream Powez (Sb/ft s) * 0.12 * 17.25 ' *
* Frctn Loss (ft) * 0.05 • Cum VOlume (aCre-ft) * 13.37 * 127.48 * 185.77 *
r C & E Loss (fU * 0.47 * Cum SA (acres) * 3.59 * 16.55 * 125.02 *
+i4tliXiRltkWk#+tRfftttilti#iiii4# Y#IRlA£R4!{i##FYWihxxf;i�fiil+#i44Y1Wx%xI11f#Ilkt4+1lfi4+#
Warning: Divided flow computed for ihis cross-section.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need tor additional ccoss sections.
Note� Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
� CROSS SECTION OUTPUT Piofile p50 yeal
r.x.R:.::.::.:..+x�:Rx:«:r:.:xF�srx..r+:�i:ax�+xxa:..:t�ar.+�.�::...t+t�+.+«�.:xw++:::«�r+i��a•
* E.G. Elev (Et) * 4031.29 ' Element ' Left OH * Channel • Right OB *
* Vel Head (£t) ' 2.45 * Wt. n-Val. ' 0.0�0 * 0.040 ' '
* W.S. Elev �fU ' 4828.84 * Reach Len. (ftl t 34.00 * 34.00 R 34.00 •
• Crit W.S. (ft) � 4828.66 ` Flow Area (sq ft) * 10.72 * 1018.97 ' *
* E.G. Slope Ift/ft) '0.011657 * Area (sq ft) ^ 10.72 * 1152.99 • 653.29 *
* Q Total ICES) *12850.00 * Flow (cfs) • 26.31 t12823.69 • *
* Top Width (ft) * 1105.56 * Top Width (ft) " 9.41 * 231.00 R 865.15 *
* Vel Total (f[/s) • 12.48 * Avg. Vel. (ft/s) • 2.45 � 12.SB " *
* Max Chl Dp[h (ft) * 6.89 ' Hydr. Depth (ft) • 1.14 * 5.5� * *
* Conv. To[al (cfs) *179016.0 * Conv. (c£s) * 243.7 •1189�2.3 * *
* Lengih Wtd. (ft) * 34.00 * Wetted Per. (ft) * 9.68 * 183.33 * �
* Min Ch E1 (fU * 4821.% � Shear !lb/sq fU * 0.81 • 4.04 ` •
* Alpha * 1.01 ' Stream Powei (lb/ft s) • 1.98 * 50.91 • `
* FYctn Loss (ft) * 0.08 ^ Cum Volume (acre-fU * 23.43 * 161.7� " 499.18 •
' C 6 E Loss (fU * 1.03 ^ Cum SA (acres) ' 5.49 • 16.78 * 170.61 *
s��wxxr..+:��trxRwxxxx..*+�i�R+::�t*i+R+xx.::atir�R:ta:++++rrwtt+�x.��ix:t.+a:+��wx�w+t+air:t�+
Warning: Divided flow computed for this cross-section.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections. �
Warning: The conveyance ratio (ups[ream conveyance divided by downstream conveyance) is less than
0 J or greatez than 1.4. This may indiwte the need for additional cross sections.
warning: The energy loss was grea[er than 1.o ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
. REACri: I-25 [o Junction RS: 71634
Page 35
STVRAIN.rep
INPUT
� Description: This cross-section is the downstream edge of the rip-rap r�ndown.
Ineffective flow exists in the left overbank of this cross-section
because of the elevation of I-25.
Station Elevation Data - num= 34
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
k4#Yi#rtlk�kht}ftttitf�fkilY4*ikM##RltttklMkkkRYM#rtxfxxkSRxf1I1+M*Mx*kY*hMW4TRxxh
1859 4832 1929 4827.01 1961 4819.73 1975 4819.15 1986 4819.52
2053 4819.86 2083 4819.68 2090 4819.16 2123 4819.51 2150 4819.69
2161 4819.61 2200 482� 2326 4828.29 2471 4828.29 2648 4828.39
2762 482�.79 2800 4627.79 2934 4827.49 2954 4824.59 2974 4824.59
2992 482�.99 3125 4829.89 3149 4829.89 3356 4829.99 3489 4830.29
361� 4829.59 3777 4830.59 3786 4826.29 3802 4826.29 3027 4830.89
3965 4831.69 4116 4832.79 4312 4834.29 4312.1 4834.29
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
i4414ii1f14h3ftttt+iii+44+YR%h#kytRtYi�iit+FiiYA
1859 .07 1929 .04 2200 .07
Hank Sta: Lef[ Right Lengths: Left Channel Right Coeff Contr. Espan.
1929 2200 26 26 26 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev PeYmanent
1859 1817 9643 F
2270 4312.1 4843 F
Blocked Obstxuc[ions num= 1
Sta L Sta R Elev
.x+:�t�tiiiw�Kr.++.�t+t�
1859 187� 4824
CROSS SECTION OUTPOT Profile #100 yeaL
......::..........«x..�x..+.....+.+.++....+...++.+x.x..x+.:+.+x....+..........x..+...xx......:.
• E.G. Elev (ftl * 4831.18 • Element * Left OH * Channel * Right OB *
` Vel Head (ft) * 0.53 • Wt. n-Val. * 0.070 * 0.040 • 0.070 *
' W.S. Elev (ft) * 4830.64 * Reach Len. (ft) * 26.00 ' 26.00 + 26.00 *
� * Czit W.5. (ft) * 4825_36 * Flow Axea (sq ft) � 92.46 * 2�30.37 � 229.76 *
� * E.G. Slope (ft/fU •0.001185 * Area (sq ft) ' 92.46 * 2�30.37 * 2986.34 `
* Q Total Icfs) *16700.00 * Flow (cfs) • 100.40 •16228.74 * 370.86 *
* Top Width (ft) * 194�.58 * Top Width (ft) * 50.93 * 2�1.00 * 1625.64 rt
t Vel Total (ft/s) * 5.47 * Av9. Vel. (ft/s) * 1.09 * 5.94 * 1.61 `
* Max Chl Dpth (ft) * 11.49 * Hydr. Depth (ft) * 1.82 * 10.08 ' 3.28 *
* Conv. Total (cfs) *485030.0 * Conv. (cfs) * 2916.0 *471342.9 ' 10771.1 <
' Length wtd. (ft) * 26.00 ' Wetted eer. (ft) * 51.06 * 272.55 ' 70.00 *
* Min Ch E1 (E[) ' 4819.15 * Shear (lb/sq ft) ' 0.13 ' 0.74 * 0.24 a
* Alpha * 1.15 * Stream Power (lb/ft s) • 0.15 * 4.41 • 0.39 *
• F[ctn Loss (£[) ' 0.03 * Cum Volume (acie-£t) • 28.33 * 1]3.05 * 631.82 *
* C 5 E Loss (ft) * 0.02 • Cum SA (acres) * 6.37 * 16.62 ` 1�6.74 �
•r..�a.::::::t.t�x.E+.w.�wxx+�t+w+tr+a�+.:::+:�i..:sit��:++�:s.:t:.:.:s:.:+..::t�:a.���+::t�a*i
Note: Mul[iple critical depths were £ound at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #500 year
•a�..+.rf:� ..::�ttt+�++t++i+wax�tx.a+i+x�+.+a+t+..xrx��.�+y�+++++i+t.++.attt+�a�+we+�t�+a+>awi
* E.G. ElevR(ft) * 4835.78 • Element < Left OB * Channel R Right OB �
* Vel Head (ft) * 1.67 * wt. n-Val. * 0.070 * 0.040 * 0.070 *
* W.S. Elev (ft) � 4834.11 * Reach Len. (ft) � 26.00 * 26.00 + 26.00 *
• Crit W.S. (ftI ' 4829.90 * Plow Area (sq ft) � 322.21 • 3670.01 * 472.47 *
• E.G. Slope (ft/ft) *0.002581 + Area (sq fU * 322.21 + 3670.01 * 9411.84 *
* Q Total (cfs) *41960.00 * Flow (cfs) * 941.09 "39199.34 * 7819.56 *
� Top Width (ftl * 2429.20 � Top width (ft) * 70.00 t 271.00 * 2088.20 *
* Vel Total (ft/s) " 9.40 * Avg. Vel. (ft/s) * 2.92 * 10.68 * 3.85 *
* Max Chl Dpth (ft) * 14.96 * Hydr. Depth (ft) * 4.60 * 13.54 • 6.75 �
* Conv. Total (cfs) *825978.4 * Conv. (cfs) + 18525.3 *771635.2 * 35817.9 *
* Length Wtd. (fU ` 26.00 * Wetted Per. (ft) ' 72.29 * 272.55 * 70.00 *
* Min Ch E1 (fU ' 4819.15 * Shear (lb/sq ft7 � 0 J2 * 2.17 " 1.09 '
* Alpha " 1.22 * Stream Power (Sb/ft s) * 2.10 * 23.1� � 4.19 *
* Frctn Loss Iftl ' 0.06 ' Cum Volume (acre-ft) * 53.12 t 226.46 ' 1231.25 *
` C & E Loss (ftl * 0.04 * Cum SA (acres) " 7.31 * 16.68 ' 198.69 *
4!*4liYii#FiifA11*xlxilxAA11i4fkAfAlf;YilYiT)11#44f#�xlMxif4RMtk**1rA4RTKixR1l4xhxh�tARliRxhflf
Warning: The cross-sectio� end points had to be extended vertically for the computed water surface.
Page 36
STVRAIN.rep
Note: Multiple critical depihs were found at this location. The critical depth with [he lowes[,
valid,
water surface was used.
CROSS SECTI0N OIITPUT Profile q10 year
..x..... ...+a..+..+:.+«.+.x...,x.x:r...+......t.x..++�i��.a.++.a.w.xw::.«:w.......:.:......
' E.G. Eleve(ft) " 482�J1 * Element * Left OB • Channel * Right OH *
* Vel Nead (fU * 0.15 "' Wt. n-Val. " 0.070 ' 0.040 R 0.070 *
" W.S. Elev (fU ' 4827.56 * Reach Len. (fU • 26.00 * 26.00 * 26.00 •
r CYit W.S. (ft) * 4822.56 * Flow AYea (Sq ft) * 2.11 * 1895.14 * 15.24 *
' E.G. Slope (ft/ft) W0.000538 ' Area (sq fU * 2.11 �' 1895.14 " 155.71 *
* Q Total (cfs) * 5950.00 ' Flow (cfs) * 0.44 * 5946.36 " 3.20 *
* Top Width (ft) * 445.08 * Top Wid[h (ftl * 7 J0 ' 271.00 * 166.38 *
* Vel Total (ft/s) * 3.11 ' Avg. Vel. (f[/s) * 0.21 * 3.14 � 0.21 *
* Max Chl �pth (fU * 8.41 * Hydr. Depth (ft) * 0.27 • 6.99 * 0.28 *
' Conv. Total (cfs) *25662"/.1 • Conv. (cfs) * 18.9 "256970.0 * 138.2 *
t Length Wtd. (ft) * 26.00 * We[ted Per. (ft) � 7.72 * 272.55 � 54.56 *
� Min Ch E1 (ft) * 4819.15 � Shear (lb/sq ft) R 0.01 * 0.23 * 0.01 *
* Alpha " 1.02 ' Stream Power (lb/ft s) * 0.00 " 0.73 • 0.00 *
* Frctn Loss (fU * 0.01 * Cum Volume (acre-fU • 13.37 • 126.45 R 185.68 •
* C 4 E Loss (fU * 0.01 • Cum SA (acres) * 3.58 * 16.36 * 125.'73 • �
•+�++��i�x+.ex.+r+w�w.x+x::.�+a�+++�«+r.::�+i+ii+x��r.�x�+:++++�+�i�a�wx�:t�ti.ir,rxR��+ta�ir�i.�R
Warning: Divided £low computed for [his cross-section.
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #50 year
•��xx:xx.:�.�i++++a:tF+.t�».r:��«�i+���.+*++eati«rrxx+i++�+i+i�x��i++���rxrx::�t�w.r,.Rr�++«sM�t+
� E.G. Elev (ft) �" 4830.18 • Element * Left OH s Channel R Right OB "'
' Vel Head (ft) ' 0.39 * Wt. n-Val. • 0.070 " 0.040 • 0.070 "
* W.S. Elev (ft) " 4829.79 ' Reach Len. (ft) * 26.00 * 26.00 " 26.00 *
' Crit W.S. (ft) ' 4824.46 ' Flow Area Isq ft) � 54.35 " 2500.79 �" 170.45 '
" E.G. Slope (ft/ft) R0.000958 * Aiea (Sq fU • 54.35 • 2500.99 • 1764.17 •
t Q Total (cfs) '12850.00 * Flow (cfs) * 44.44 `12602.85 * 202.71 R
• Top width (ft) * 1340.45 * Tap Width (ft) * 39.05 • 271.00 * 1030.41 •
�� * Vel Total (ft/s) * 4.�1 * Avg. Vel. (ft/s) * 0.82 * 5.04 * 1.19 *
* Max Chl Dp[h (ftl * 10.64 * Hydr. Depth �ft) * 1.39 • 9.23 • 2.44 *
* Conv. Total (cfs) •415142.1 ' Conv. (cfs) * 1435.8 *40�157.5 ' 6548.H *
� * Length Wtd. (ft) * 26.00 * Wetted Per. (ft) ` 39.15 * 272.55 * 70.00 *
� * Mirt Ch E1 (ft) • 4819.15 ' Sheai Qb/sq ft) * 0.08 " 0.55 ^ 0.15 *
* Alpha * 1.12 ' Stream Power (lb/ft s) • 0.07 * 2.77 * 0.17 *
* Frctn Loss (ft) ` 0.02 * Cum Volume (acre-ft) * 23.40 * 360.34 * 498.24 *
• C 5 E Loss (ft� * 0.02 * Cum SA (aczes) • 5.47 * 16.58 ` 169.87 i
�:.:.x•ar3+....x..x.:...r..x+..++...�:.«.+�..•��.+.t..it�.�e�...i�i�x+.::::...•:.:.:..:�++.x....
wacning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this loca[ion. The critical depth with the lowest,
valid,
watei surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction RS: 71608
INPUT
Descziption: This czoss-section is approximately 40 feet downatream of the
rip-rap rundown. .
Station Elevation Data num= 30
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
f*4!l411#k411:ltt�.lRt#41fit1kh#f1'.!R'Fhi#*I�ii#i�Rli*44if1'.Y1lk4l4#**#li#fi1111f'4tltfif/#
1858 4832 1948 4826.27 1972 4820 1985 4819.05 1988 4818.51
2160 4818.1 2163 4819.14 2201 4826.83 2326 4628.24 2471 4828.24
2648 4828.34 2782 4827.74 2800 4827.74 2934 4827.44 2954 4824.54
2974 4824.54 2992 4627.94 3125 4829.84 3149 4829.84 3356 4829.94
3489 4830.24 3617 4829.54 3777 4830.54 3786 4826.24 3802 4826.24
3827 4830.84 3965 4831.64 4116 4832.74 4312 4834.24 4312.1 4834.24
� Manning's n Values num= 3
. Sta n Val Sta n Val Sta n Val
, .......+.+...«...,...+«.:...+.++........::..:...
Page 3�
STVRAIN.rep
1858 .07 1998 .04 2201 .0�
Hank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E�cpan.
1948 2201 376 440 483 .3 .5
IneffeCtive Flow num= 1
Sta L S[a R Elev Permanen[
2283 4312.1 4843 F
CROSS SECTION OUTPUT Profile #100 yeaY
f;h14i1t;;;hf*f*i+fi4tRx*RAhiYFtF1AIh1}Y1!lxx1R1####it##t!#*fxxf#4h+41####Yi#xkhflfif11Y4iii4+4#
* E.G. Elev (ft) * 4831.13 � Element * Left OB • Channel * Right OB "
* Vel Head (ft) * o.so * Wt. n-Val. * 0.070 • 0.040 * 0.070 *
� W.5. Elev (fU • 4830.63 t Reach Len. (f[) � 376.00 * 440.00 * 483.00 *
* Cri[ W.S. (ft) a 4824.49 * Flow Area (sq ft) * 149.42 t 2806.71 * 293.81 *
* E.G. Slope (ft/ft) *O.a00976 * Area (sq fU * 149.42 * 2806.�1 + 3057.82 *
* Q Total (cfs) *16700.00 � Flow (cfs) + 166.45 *16127.83 * 405.72 *
* Top Width (ft) * 1946.38 ' Top Width (ft) • 68.51 * 253.00 * 1624.87 •
• Vel Total (ft/s) * 5.17 * Avg. Vel. (ft/s) � 1.11 ' 5.75 * 1.48 *
* Max Chl Dpth (Et) * 72.53 • Hydr. Depth (ft) * 2.18 ' 11.09 * 3.34 *
* Conv. Total (cfs) *534440.4 ' Conv. (cfs) + 5326.8 •516129.5 � 12984 1 '
� Length Wtd. (ft) � 444.18 ' Wetted Per. (ft) * 68.65 * 254.83 * 82.01 •
* Min Ch E1 (ft) * 4818.10 • Shear (lb/sq ft) � 0.13 * 0.67 � 0.20 •
* Alpha * 1.20 * Stream Power (lb/ft s) * 0.15 • 3.86 • 0.30 *
* Frctn Loss (ftl • 0.47 * Cum Volume (acre-ft) • 28.25 * 171.39 * 630.01 *
* C & E Loss (ft) * 0.02 t Cum SA (acres) * 6.33 � 16.47 * 175.7� *
......+........x,..+.+.+....:..+..+........+.«.=�:.w:::x.+++.+w.......::+�.+.:.++.+.+.++:....::
Note: Mul[iple critical depths were found at this loca[ion. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #500 year
+.a::,:..+xxr..+.+aa....:.:....:�,«...=.x..«:.:.+x++.x.+..+.+.+..:..�.....+......++�..+�+......
� E.G. elev (ft) . � 4835.67 * Element * Left OB * Channel * Right OB #
t Vel Head (ft) � 1.59 * Wt. n-Val. * 0.070 * 0.040 * 0.070 *
" W.S. Elev (fU ' 4834.08 * Reach Len. (fU * 376.00 * 440.0� * 483.00 *
. ' Crit W.S. (fU ' 4829.42 * Flow Area (Sq ft) ` 445.23 * 3679.61 * 556.72 '
. * E.G. Slope (f[/ft) *0.0022�4 * Area (sq ft) + 445.23 * 3679.61 * 9463.22 '
* Q Total (cfS) *41960.00 * Flow (Cfs) * 1289.05 *30652.36 * 2020.59 +
• Top Width (ft) * 2433.33 * Top Width (ft) • 90.00 • 253.00 • 2090.33 �
* Vel To[al ift/s) * 8.96 ` Avg. Vel. (ft/s) * 2.89 ' 10.50 * 3.63 *
* Max Chl Dpth Ift) • 15.98 � Hydr. Oepth (fU * 4.95 * 14.54 • 6_79 *
* Conv. Total (cfs) *879883.7 * Conv. (cfs) � 26988.9 •810523.8 * 42371.0 '
* Length Wtd. (fU * 444.88 * Wetted Per. (ft) * 92.26 * 254.83 ' 82.01 *
� Min Ch E1 (ft) + 4818.10 ' Shear Qb/sq ft) * 0.69 � 2.05 * 0.96 �
* Alpha * 1.28 " Stream Power (lb/ft s) � 1.98 * 21.53 * 3.50 *
* Frctv Loss (ft) � 0.95 * Cum Volume (acre-£t) * 52.89 * 224.27 w 1225.61 w
' C 6 E Loss (ft) * 0.2� * Cum SA (acres) ' 7.26 * 16.52 * 197.94 *
x+�+ixtt+��..w.x++++:�t�:�:�r«:..x:.:�+����x�x�xxx�wRwri.+�+tw�+r+::k�i:.�r«ty++�+:�a:��w+t+t+
warning: The cross-section end points had to be extended vertically £or the compu[ed water surface.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Wazning: The energy loss was greatex than 1.0 ft (0.3 m) . between the current and pr.evious cross
section. This may indicate the need for addi[ional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with ihe lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #10 year
4f41Yt4#}x>xRRfi441#rt#k}1t*l4kf4*tTx#xAfR+tliklf#k1f14tli#f[Yi#1i4}FRx41#Tf4i!#wft*4414#1*if14T1
' E.G. Elev (ft) * 4829.69 � Element * Lef[ OB � Channel * Right OB R
* Vel Head (fU * 0.13 * W[. n-Val. * 0.070 * 0.040 ' 0.07U *
* W.S. Elev (ft) • 4827.56 * Reach Len. (ft) • 376.00 • 440.00 * 483.00 •
" Crit W.S. (ft) r 4fl21.54 * Flow Area (sq ft) • 13.00 * 2028.68 • 23.40 *
* E.G. Slope (Ct/fU *0.000391 ' Area (sq ft1 * 13.00 t 2028.68 * 169.77 *
* Q Total (cfs) * 5950.00 " Plow (cfs) * 4.06 * 5940.94 � 5.00 *
' Top Width (ft) � 471.57 * Top Width (ft) t 20.21 * 253.00 * 198.36 �
" Vel Total (ft/s) • 2.88 * Avg. Vel. (ft/s) z 0.31 * 2.93 * 0.21 •
* Max Chl Dpth (fU * 9.46 * Hydr. Depth (fU * 0.64 R 8.02 * 0.36 *
* Conv. Total (cfs) *300918.6 W Conv. (cfs) * 205.4 *300960.4 • 252.9 •
* Length wtd. (ft) � 441.�9 • wetted Per. (ft) � 20.25 * 254.83 * 64.41 *
* Min Ch E1 (fU * a818.10 * Shear (lb/sq fU * 0.02 * 0.19 ' 0.01 *
' * alpha + 1.03 * Stream Power Ub/ft s) • 0.00 * 0.57 * 0.00 *
Page 3B
STVRAZN.rep
� ' Frc[n Loss (f[) k 0.21 * Cum Volume (acre-ft) � 13.3� ' 125.28 * 185.58 ;
• C & E Loss (fU 0.01 * Cum SA (acres) 3.57 * 16.20 125.62
F*4ikM*'�ff4+1Af4!#ti#*fA#k#1*ih'h'R*41Y#+Iifi##!�.l1*11i4i11!'.!*4Y#1#1fili�l4lk#ififl#R14#li411!#Y*#
warning: Divided flow computed Eor this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPOT Profile #50 year
.�+r+..........,+:...+x...x.+.:...+...x::+.++..x::+..+.xx++..+..x...:::.:+.r»n+�..r+.+x:.+...+.
w E.G. Elev IfU * 4830.14 ' Element ` Left OH * Channel � Right OH �
� Vel Head (fU * 0.36 * Wt. n-Val. * 0.070 * 0.040 * 0.070 +
* W.S. Elev (£t) " 4829.79 • Reach Len. (£t) * 376.00 " 440.00 • 483.00 *
* Crit W.S. (ft) * 4823.54 * Flow Area (sq ft) * 97.15 * 2592.99 * 2o4.54 •
* E.G. Slope (f[/ft) *0.000769 • Azea (sq ft) � 97.15 * 2592.99 * 1814.84 *
+ Q Total (cfs) '12850.00 � Flow (cfs) R 83.22 *12545.29 * 221.49 *
* Top Width �ft) * 1355.95 � Top Width (ft) � 55.24 * 253.00 * 1047.71
* Vel Total (ft/s) * 4.44 " Avg. Vel. (ft/s) ' 0.86 ` 4.84 ` 1.06 *
� Max Chl Dp[h (ft) * 11.69 * Hydr. Depth (ft) • 1.76 ' 10.25 * 2.49 •
* Conv. Total (cfs) •463291.4 • Conv. (cfs) * 3000.4 �'452305 J * 7985.4 *
'� Length Wtd. (ft) * 443 J2 • Wet[ed Per. (ft) * 55.35 * 254.83 * 82.01 �'
f Min Ch E1 (ft) * 4818.10 * Shear (lb/Sq ft) * O.OB a 0.49 * 0.12
* Alpha • 1.16 ` Stream Power Ub/ft s) ' 0.07 '� z.36 * 0.13 '
* Frctn Loss (ft) * 0.38 ' Cum Volume (acre-fU * 23.36 * 158.82 * 497.17 *
+ C & E Loss (ft) • 0.00 ' Cum SA (acres) " 5.44 * 16.42 * 169.25 *
:x:+<ax+..:a:.....:......x..+..x•+....+«.+.*«.+..xx.�++w...:x..+........+....:x.....+++•...r::s:
Warning: Oivided flow computed for [his cross-section.
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
LATERAL STRUCTURE
� RIVER: S[. Vrain River
. REACH: I-25 to Junction RS: 71465
INPUT
Description: This lateral weir is the first location where water overtops the
berm.
Lateral s[ructure position = Next ot left bank station
�istance Erom Upstream XS = 140
Deck/Aoadway Width = 30
Weir Coefficient = 2.63
Weir Flow Reference = Water Surface
Weir Embankmen[ Coordinates num = 6
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
��+..`xw.i++ix++xr.�+{++rx�,�sxr:�+�r.�+..•++x::*++wr�+���xw+++�r:�:�irww�t++�.+:�+
1587 4837 1662 4830 1693 4829 1758 4829 1784 4830
1821 4831
Weir czest shape = Broad Crested
LATERAL STRUCTU2E OUTPUT Piofile #100 yeaz Lat StruCt
+�+r,xxr+�t+x++�x+.+xixx+*x�x+��xt++�*:++rx++»wxt+�tit�++r�i++irrx+irixxx�
* E.G. IIS. (ft) * 4830.97 • Weii Sta US (ft) ' 1620.42 *
t W.S. US. (fU * 4830.49 * weir Sta DS (ft) ' 1'194.34 *
� E.G. DS (fU * 4830.71 * Weir Max Depth (ft) ' 1.38 Y
* W.S. OS lft) * 4830.25 * Weii Avg Depth (ft) * 0.87
* Q US (cfs) '16700.a0 + Weir Submezg * 0.00 ^
* Q Leaving Total (cfs) ^ 402.'77 * Min E1 Weir Flow (ft) * 4829.00 y
• Q DS (cfs) *16297.26 * Wr Top Wdth (ft) 165.92 *
+ Perc 4 Leaving * 2.41 * Q Gate Group (cfs) e *
t Q Weir (cfs) * 402.77 * Gate Open Ht (fU ^
* Q Gates (cfs) * * Gate #Open *
* Q Culv (cfs) * " Gate Area (sq ft) ' *
Q Lat RC (cfs) � " Gate Submerg *
Weir Flow Area (sq fU " 144.8'7 ' Gate Inver[ (ft) *
i�ai��3fRr:�ir,:++xx++rr�t+a�xy+*�W*.Ri**xt+�r�:�+a+���r+��+wi+�k+�i�it�+k
'� Warning: The comeyance ratio (upstream conveyance divided by downstream conveyance) ie less than
Page 39
STVRAIN.rep
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
LATERAL STRUCTURE OUTPUT Profile #500 year Lat Struc[
...x+..+..+..a<.::....x.ax.++.+.<+a+++.+++..+r...x.==.=_.».+..»...:»+.+..
* E.G. US. (ft) * 4835.29 * Weir Sta US (f[) ' 1587.00 *
• W.5. US. (fU w 4833.87 * Weir Sta DS (ft) ' 1821.00 *
* E.G. DS (ft) + 4834.64 * Weir Max Depth (fU ' 4.�0 +
' W.S. DS (ft) * 4833.50 � WeiT Avg Depth (ft) ' 3.84 *
' Q US (cfs) •41960.00 * Weir Submerg * 0.00 *
* Q Leaving Total (cfs) * 4692.66 * Min E1 Weir Flow (ft) * 4829.00 *
* Q DS (Cfs) �37268.23 * Wr Top Wdth (ft) ' 234.00 *
• Perc Q Leaving • 11.18 * Q Gate Group (cfs) • . *
k Q Weir (cfs) + 4692.66 * Gate Open Ht (ft) ' #
* Q Gates (cfs) * * Gate #Open R *
� 4 Culv (cfsl * * Gate Area (sq ft) * •
• Q Lat RC (cfs) * t Gate Submerg * F
* Weir Flow Area (sq fU * 899.54 * Gate Invert (ft) • *
.�++...x....::r,x+....:.++.::+:.+x,+:x..x:+.,x+x+.x.x:xx:w.:..:.:.x::x:�.
LATERAL STRUCTURE OUTPUT Profile q10 year Lat Strnct
�+y<+r+++at:.�.�w.wx+rx.�.r+��+i.Fa+wr�tx�tw�*++a+t*.+«����wii*t*+rwy��r+
* E.G- US. (fU • 4827.62 � Weir Sta US (ft) " *
• W.S. US. (fU * 4827.48 * Weir Sta DS (fU ' *
* E.G. DS (f[) ' 4827.5� ' Weir Max Depth (ft) � *
' W.S. DS (fU ' 4827.34 * Weir Avg Depth (ft) * R
t Q US (cfs) * 595�.00 • WeiY SubmeYg * *
* Q Leaving Total (cfs) * 0.00 * Min E1 Weir Flow (ft) * 4829.00 *
' Q DS 1Cfs) ' 5950.00 • Wr Top Wdth (ft) ' *
* Perc Q Leaving * 0.00 * Q Gate Group (cfs) * *
' Q weir (cfs) * * Gate Open HC (fU • *
� Q Gates (cfs) � * Gate #Open * *
* Q Culv (cfs) * * Gate Area (sq fU • `
* Q Lat RC Icfs) * * Gate Submerg * x
+ Weir Flow Area (sq ft) • ` Gate Invert (ft) * *
♦x#Yk#1k14*i+1t#+itttiTFf�A+fFxF£\xRf�;Fttk14F£i4ttltt�stfRfttttttitttitt
r Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance� is less than
� 0.7 or greater than 1.4. This may indicate the need for additional cross sections.
LATERAL STRUCTURE OUTPUT Profile p50 yeaY Lat Struc[
♦1hk4+#+twhl4iFi++ikttf4t;fxFx#*+TlRt#lhxY�+f�xltt4#4f#itlfffttfttiitii44
* E.G. U5. (ft) * 4830.02 • Weir Sta US (ft) • 16�4.�1 *
* W.S. US. (ft) ' 4829.6� * weir Sta n5 (fU * 1��1.1� *
• E.G. DS (ft) • 4829.82 * Weir Max Depth (ft) * 0.57 *
* W.S. DS (fG) * 4829.46 " Weir Avg Depth (ft) • 0.46 `
` 4 US (cfs) +12850.00 " weir Submerg + 0.00 *
* Q Leaving Total (cfs) * 82.53 ' Min E1 Weir Flow (ftl ' 4829.00 *
* Q �S (cfs) *12�68.5� * Wr Top Wdth (fi) * 9b.47 *
* Perc Q Leaving * 0.63 • Q Gate Group (c£5) * `
* Q Weir (cfs) * 82.53 * Gate Open Ht (ft) " *
� Q Gates (cfs) � * Gate NOpen • *
* Q Culv (cfs) � * Gate Area (sq ft) * •
* Q Lat RC (cfs) � • Ga[e Submerg k *
* Weir Flow Area (sq fU * 44.16 * Gate I�vezt (ft) ' *
+t��.::::.::.:.+rw*+xxwM++x+i.t�aw++�.t�+w++��+x+.ti++e+xti++art�rirat++ii
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: SL Vrain River
REACH: I-25 to Sunction RS: 71168
INPUT
Description:
S[ation Elevation Data num= 23
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
f4AiYt4W#*4f+tiil#+#kkMikMAkl4ti*fkF#tkhl£#f£!#i#44#11#Fihlhil�*i#i4f4#i#4*Y4*h♦
1993.5 4830.8 2030 4827.9 2057.6 4821.3 2076 4819.5 2096.3 4818.7
2101 4818.4 2204.5 4818.2 2222 4819.5 2255 4826.9 2358.4 4825
2749 4825 2�6� 4823.5 2795 4823.5 2824 4824.8 3069 4827
3949 4829 3969 4629 39�5 4827 3999 4829 4008 4829
Page 40
STVRAIN.rep
- 4130 4831 4294 4833 4564 4835 �
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
.....+...«...+.+«.............i........+..+...+.
1993.5 .07 2038 .04 2255 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
2038 2255 376 440 483 .3 .5
Ineffec[ive Flow nnm= 1
Sta L Sta R Elev Permanent
2563 4564 4843 F
CROSS SECTION OUTPUT Piofile #100 year
....:.�+...x:...+�+....:.x+::..w+.,...+r..�.�++.+:++....*..:....+.:......«.«sr.+.++�+..r.«xx.:x
* E.G. Elev (ft) * 4830.64 � Element t Left OB * Channel * Right OH '
+ Vel Head (fU R 0.45 ` Wt. n-Val. * 0.070 k 0.040 * 0.070 t
* W.S. Elev (ft) * 4830.19 * keach Len. (ft) * 376.00 * 440.00 * 483.00 *
* Crit W.S (fU * 4925.84 * Flow AYea (sq ft) * 40.08 * 2228.30 " 1498.92 '
* E.G. SlOpe (ft/ft) *0.001148 ' Area (Sq ft) * 40.08 * 2228.30 ` 6048.58 *
* Q To[al Icfs) *16297.26 k Flow (cfs) * 31.47 "13169.34 * 3096.45 +
• Top Width (ft) � 2077.39 * Top Width (ft) * 35.07 * 217.00 • 1825.32 *
� Vel TOtal (ft/s) ' 4.33 + Avg. Vel. (ft/S) * 0.79 * 5.91 � 2.07
' Max Chl Dpth (fU * 11.99 * Hydr. Depth (£U • 1.14 ; 10.27 * 4.87 *
a Conv. Total �cfs) *480909.6 * Conv. (c£s) ` 928.8 +38860B.9 * 91371.9
• Length W[d. (EU * 450.26 ' Wetted Per. (£t) t 35.15 • 219.06 * 30fl.02 •
* Min Ch E1 (ft) * 4818.20 * Shear (lb/sq ft) R 0.08 � 0.73 • 0.35 *
w Alpha * L 55 * Stream Powec Qb/ft s1 + 0.06 ' 4.31 * 0.72 *
� Frctn Loss (f[) * 0.67 * Cum Volume (acre-ft) • 27.a4 " 145.96 * 579.52 *
a C & E Loss (ft) * 0.04 ' Cum SA (aCTes) • 5.88 * 14.09 * 156.64 *
RFA+1#iFF4i#4Yl�f4tf44krtW+Fslih%+�tiiR#+ffYYiiii##Y1*Y4##iMf!₹ihYftikS#1liiii4fifkt#TiilFtiYY4♦
Note: Mul[iple critical dep[hs were found at this location. The critical depth with the lowest,
valid,
energy was used.
� yR09S*SEek#ON*OUTP*T*tP+oP;le*k+00fyeaz
k k ! 1W*k#+kWR1#Yi#+!#iYIIifF#ti�i##iYIxF4k4i1k114i111Ft#i411/+
3 E.G. Elev (ft) * 4834.45 • Element ` Left OB * Channel � Right OB *
* Vel Head (fU * 1.05 * Wt. n-Val. ' 0.070 � 0.040 " 0.070 `
• w.S. Elev (ft) * 4833.40 * Reach Len. (ft) * 376.00 " 440.00 * 483.00 '
- * Crit W.S. (EU R 4829-37 � Flow Area (sq ft) * 180.25 * 2925.92 * 2489.10 +
* E.G. Slope (ft/fU �0.001997 * Area (sq ft) + 180.25 ' 2925.92 *12296.67 *
* Q Total (cfs) 337268.23 ' Flow (cfs) * 417.76 µ27342.41 * 9508.06 *
* Top Width (ft) � * 2354.55 * Top Width (£t) ' 44.50 217.00 ` 2093.05 *
* Vel Total (ft/S) • 6.66 * Avg. Vel. (ft/S) • 2.32 ; 9.34 ` 3.82 {
' Max Chl ➢pth (ft) * 15.20 * Hydr. Depth (ft) ' 4.05 13.48 * 8.08 ;
* Conv. Total (cfs) '833994.2 ' Conv. (cfs) R 9348.8 *6ll872.6 *212772.8
^ Leng[h Wtd. (ft) t 453.81 * Wetted Per. (ft) i 47.19 � 219.06 k 308.02 `
* Min Ch E1 (fU * 4818.20 * Shear (lb/sq fU 0.48 1.67 * 1.01 4
* Alpha 1.53 * Stream Power (lb/ft s) ' 1.10 * 15.56 3.85
* Frctn Loss (ft) * 1.09 * Cum Volume (acre-£t) ' 50.19 * 190.91 * 1104.9� h
• C & E Loss (ftl * 0.01 * Cum SA (acres) * 6.68 r 14.15 ' 174.25
xx:++ir::�+rrr.h•ww+xx:..wx.irx.:i�.�+st�xw+3+��k++��:�+i+�.+i�r�+:�i�x�R:tW�xx+���Rx:��x..:::�
Warni�g: The cross-section end points had to be extended vertically for the computed water surface.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
sec[ion. This may indicate the need for additional cross sections.
Note: Mul[iple critical depths were found at this location. The critical depth wi[h the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile N10 year
f#x11#i1£#i�1##IxxA#�i1#X4#x!i#Iftk4Y!li11f!##f!*#ifx4*4*fkM1#iRli##f1tf+#11*�##R14+#lxttxt#itt
" E.G. Elev (ft) * 4827.47 • Element � Left OB * Channel * Right Oe *
� Vel Head (ft) * 0.17 * Wt. n-Val. " * 0.040 * 0.070 *
* W.5. Elev (ft) * 4827.37 * Reach Len. (ft) * 376.00 ' 440.00 * 483.00 ;
* Crit W.S. (ft) * 4822.15 � Flow Area (sq ft) • ` 1603.89 611.92 *
* E.G. Slope (ft/fU *O.OOOSB3 ' Area (sq ft) ' • 1603.89 ` 1659.52 ;
+ Q Total (cfs) * 5950.00 a Flow (c£s) * y 5454.43 * 495.57 *
* Top Widih (ft) ` 1168.31 • Top Width (ft) Y 215.24 * 953.08 *
� Vel Total (f[/s) * 2.69 • Avg. Vel. (ft/s) * 3.40 * 0.81 x
F' + Max Chl Dpth (fU ` 9.11 ' Hydz. Depth (ft) f 7.45 1.99
* Conv. Total (cfs) '246463.8 ' Conv. (Cfs) "225936.2 * 20527.6
Page 41
STVRAIN.rep
' Leng[h Wtd. (ft) * 443.71 • Wetted Per. (ft) * * 217.20 " 308.02 '
. * Min Ch E1 ffU + 4e18.20 " Shear (lb/sq ft) * R 0.27 * 0.07 •
* Alpha • 1.48 • Stream Power (lb/ft s) * * 0.91 * 0.06 '
* Fzctn Loss (ft) * 0.36 r Cum Volume (acre-ft) * 13.31 * 106.93 � 175.44 *
* C & E Loss (ftl � 0.04 ' Cum SA (acres) ' 3.49 * 13.04 * 119.24 *
RT+S4l�+tft#ffR#Ra�4Y+*�RKAM1xxlxRFfi4�iti44#+#Yi1xRxTik44+1Rx11T1xxYRfkkA4t*1ikFY#i#/ATi1+x1i♦
Warninq: Oivided flow computed for this cross-section.
Warning: The conveyanre ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this loca[ion. The critical depth with the lowes[,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #50 yeac
#Y+#ftk+#+#4M4x**iY+fii4*i#ix#i+11Y#MfMkRAlxxxx*+tYf#4i4Y4iikrFlt4iif###f+h#wfffllhlf4itArt+*RAA
' E.G. Elev (ftl * 4829.76 * Element • Left OB • Channel � Ri9ht OB •
* Vel Head (ft) * 0.35 � Wt. n-Val. * 0.070 * 0.040 • 0.0�0 *
' W.S. Elev (ft) * 4829.41 * ReaCh Len. (fU ' 376.00 ' 440.00 ' 483.00 *
* Cri[ W.S. (ft) ' 4824.39 * Flow Azea (sq ft) • 77.41 * 2059.19 * 1258.90 `
' E.G. Slope (ft/ft) *0.00�993 " ATea (sq ft) * 19.41 * 2059.19 • 4644.64 *
* p Total (cfs) *12768.5� * Flow (cfs) ' 9.53 *10628.11 * 2130.93 *
* Top Width (ft) * 201�.90 R Top Width (ft) ' 23.12 � 217.00 * 1777.78 *
• Vel Total (ft/S) * 3.83 * Avg. Vel. (ft/s) * 0.55 * 5.16 * 1.69 *
* Max Chl Dpth (ft) ' ll.21 * Hydr. Oep[h (ft) * 0.75 * 9.49 w 4.09 �
• Conv. Total (cfs) •409327.9 ` Conv. (cfs) * 305.5 *340710.1 * 68312.3 *
* Length Wtd. (fU * 448.88 * WetLed Pez. (£U * 23.16 * 219.06 • 308.02 '
* Min Ch E1 (ft) * 4818.20 ' Shear (lb/sq ft) ' 0.05 * 0.57 * 0.25 �
' Alpha = 1.55 * Stream Power (lb/ft s) • 0.02 * 2.95 * 0.42 *
* Fzctn Loss (ft) * 0.58 ' Cum Volume (acre-ft) * 22.86 * 135.32 * 461.36 *
' C & E Loss (ft) • 0.04 * Cum SA (acres� * 5.10 * 14.05 * 153.58 '
#4#[4�iY+#i#k1#kiitt44kflitl+k4kFiiR*lkMlMk4t*kki#+#3ii4#ii4t+tfiik4fWtiiYiik#kFwYllxixF+RYilkk
Note: Multiple critical depihs were found at this location. The czitical depth with the lowest,
valid,
energy was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 [o Sunction R5: �0728
INP[1T
Description:
Station Elevation Data num= 34
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
x�w.+w�rx.�+t�.�.w�x+.xia+vr+r:xxwxr.rwxxx.:ax:+s+e++�.�ixi+++�s+�+.+�+�+++x+�e�+
2129 4829.5 2155 4819.55 2214 4818.25 2249 4818.25 2281 4819.95 �
2310 4B2"1.05 2424 4824.25 2597 4824.25 2626 4822.75 2656 4824.35
2784 4824.95 2800 4822.55 2836 4822.55 2850 4823.45 2887 4825.15
3032 4825.15 30"12 4826.55 3086 4823.55 3253 4823.65 3415 4823.65
35B2 4823.65 3760 4823.65 3796 4828.95 3849 4826.95 3945 4826.95
4133 4827.85 4145 4824.85 4153 4824.85 4161 4826.05 4378 4831.45
4525 4833.�5 4595 4833.35 4753 4834.95 4932 4836 JS
Manning's n Values num= 3
Sta n val Sta n Val Sta n Val
:+..::.:.:.:,+.::<..:+.........».+.«:s�:.++.+x+«
2129 .07 2129 .04 2310 .07
Bank Sta: Left Right Lengths: Left Channel Right Cceff Contr. E�an.
2129 2310 800.5 494 504.5 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
2866 4932 4B43 F
Blocked Obstructions num= 7
Sta L Sta R Elev
«+.+...�,+�s+:....+....+.
2506 3"]92 4825.91
CROSS SECTION OUTPUT Profile #100 year
....:.......x:..:....:..:...:..:....:.+«....w+.++..x:..,...........:..:.....:.x:xx«xwx.x.x.....:
. * E.G. Elev (ft) ' 4829.93 * Element '� Left OB * Channel * Right OB *
Page 42
STVRAIN.rep
� + Vel Head (ft) ` 0.58 ' Wt. n-Val. * * 0.040 ^ 0.070 �*
� * W.S. Elev (ft) * 4829.35 * Reach Len. (fU 800.50 " 494.00 504.50
* Crit W.S. (fU + 48a7.29 * Flow Area lsq ft) * � 1628.29 * 2078.68 w
* E.G Slope (ft/fU `0.001988 * Area (sq fU * * 1628.29 * 6233.55 '
* Q Total (Cfs) . '16297.26 • Flow (cfs) ' "11567.32 * 4729.95 *
* Top Width (fU ` 2164.24 • Top Wid[h (ft) * * 180.61 R 1983.63 �
* Vel To[al (ft/s) * 4.40 * Avg. Vel. (ft/s) " ' 7.10 '" 2.28 t
* Max Chl Dpth (ft) • 11.10 * Hydr. Depth (ft) * • 9.02 � 3.74 '
* Conv. Total (cfsl •365486.0 * Conv. (cfs) ` ^259411.1 *106074.9 *
` Length Wtd. (fU ' 498.12 " Wetted Per. (ft) * * 183.34 * 557.69 *
' Min Ch E1 (fU ' 4818.25 * Shear (lb/sq ft) * • 1.10 • 0.46 *
* Alpha • 1.93 � Stream Power (lb/ft s) '�' * "1.63 * 1.05 *
" Fzctn Loss (ft) • 0.86 * Cum Volume (acre-ft) * 27.26 * 126.49 • 511.43 R
* C � E Loss (fU * 0.12 • Cum SA (acres) • 5.73 � 12.08 " 135.52 •
..:......x�...::..........:.a.x.......::..++.......::.+::,::.....+....x.x....:.«+.::..a..:+a...
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS $ECTION OUTPUT PYOfile #500 yeaT
♦�t+y�rit�iM�ir+F.r++.i��:x.:++i�+<.rir+.a�:��tF��+wxyrwwx.w:�atwtx���w�xarx.k+t.�i+:i:.t+»�r++
* E.G. Elev (ft) * 4833.35 • Element * Left OB * Channel * kight OH *
� Vel Head (£t) • 1.09 • Wt. n-Val. "' • 0.040 * 0.070 '
� W.5. Elev (ft) * 4032.27 • Reach Len. (fU " 800.50 + 494.00 • 504.50 •
* Ciit W.S. (f[) ' 4829.85 ' Flow Azea (sq fU ' * 2156.24 ' 3�00.53 *
'� E.G. Slope (ft/fU •0.002944 * Area (sq ft) • • 2156.24 *12208.02 '
" Q To[al (cfs) •3�268.23 * Flow (cfs) � *22218.85 *15049.38 R
� Top Width (ft) * 2324.12 * Top Width (ft) * * 181.00 * 2143.12 *
* Vel Total (f[/s) * 6.36 * Avg. Vel. (f[/s) � � * 10.30 * 4.07 *
* Max Chl Dpth (ft) * 14.02 * Hydr. Depth (£[) * ' 11.91 * 6.66 *
* Conv. Total (cfs) R686898.5 * Conv. (cfs) " *409520.2 *277378.3 �
* Lengih Wtd. (ft) • 500.26 ' Wetted Per. (ft) • ' 186.52 ' 55�.69 `
* Min Ch E1 (ftl ` 4818.25 * Shear (lb/sq ft) R * 2.12 ' 1.22 *
* Alpha * 1.73 * Stream Power (lb/ft s) " ' 21.89 ' 4.96 t
� Frctn Loss (ft) • 1.24 * Cum Volume (acre-fU R 49.41 * 165.24 • 969.12 *
r ....&.E:L�t+.(..)x«....++.,...�+.•:.t+.�m SA (acresl ` 6.49 � 12.14 ' 750."1"] •
� w w.�x.+<s�i��....,t�.+.+++.xr+i:�t��t:i+�+r+�t�w++:+:xxx:
Warning: The cross-section end poin[s had to be extended vertically for the computed water surface.
warning: The energy loss was greater than 1.o ft 10.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION 0(1TPUT Profile #10 yeai
!ii!#i1#44#YtYfiR*Ritfffthl�.l�.!'.lf:FRt>11:R'.!I##14rt#11:t+ikti##RRvltfitk*#41Rfh!*#Mfk4kMi+�.!%t4i+i4fi�4'.!•
* E.G. Elev (fU ' 48z7.o7 R Element * Left OH • Channel * Right OB a
r Vel Head (fU ' 0.30 * Wt. n-Val. * ` 0.040 * 0.0"]0 *
* W.S. Elev (ft) 3 4826.�6 � Reach Len. (ft) * 800.50 ' 494.00 * 504.50 *
* CYit W.S. (ft) " 4822.8"] " Flow Alea (sq ft) * ' 1169.64 * 640.96 `
* E.G. Slope (f[/fU '0.001234 ' Area (sq ft) * • 1169.64 * 1454.27 *
* Q Total (cfs) * 595�.00 * Flow (cfs) • " 5418.10 * 531.90 "'
• Top Width (ft) '� 1684.33 • Top Width (ft) * * 172.67 * 1511.66 *
* Vel TOGal (ft/sI ` 3.29 * Avg. Vel. (ft/s) * * 4.63 • 0.83 x
k Max Chl Dpth (f[) " 8.51 ` Hydr. Oepth (fU * ' 6.7� * 1.18 R
* Conv. Total (cfs) •169380.4 R Conv. (cfsl * '"154238.7 * 15141."l �
* Length Wtd. (ft) * 495.95 * Wetted Per. (fU * � 174.88 * 545.96 *
� Min Ch E1 (fU * 4818.25 • Shear (lb/sq f[) ' ` 0.52 • 0.09
* Alpha * 1.82 * Stream Powei (lb/ft s) * * 2.39 ` O.OB *
• Frctn Loss (ft) * 0.57 * Cum Volume (acre-ft) * 13.37 t 92.92 ` 158.18 •
" C & E Loss (E[) * U.OS " Cum SA (acres) * 3.49 • 11.88 * 105.57 *
Y4iY11�t�.!!1lkM441f#1f1f1tt#f1Yh'.lYY#kiflkrt+4#f*i#thkllfit#4M4Y11k}1tl11:�*1hkWRYi144fifflt#ik+i#15
Warning: Divided flow compu[ed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used. .
CROSS SECTION OUTPUT Profile #50 year
i�x+++�r�k�w:rxrva�rrwxw+:.+.rrR:t«.ra++�a+x�+++wwxr+:txk�+++�:�+«�+w���+�i��+tw��������i�rt+��+
* E.G. Elev (ft) * 4829.14 * Element * Left OH � Channel * Righ[ OH *
* Vel Head (ft) * 0.49 • Wt. n-Val. * ` 0.040 " 0.0'10 i
Page 43
STVRAIN.rep
* W.S. Elev (fU * 4828.65 * Reach Len. (fU • 800.50 • 494.00 * 504.50 �
' Crit W.S. (ft) ` 4825 J4 � Flow Area (sq ft) * * 1501.79 � 1687.20 3
* E.G. Slope �ft/ft) *0.001773 * Area (sq ft) � * 1501.77 • 4848.36 �
* Q Total (cfs) *12768.57 * Flow (cfs) * * 9614.15 * 3754.42 "
* Top Width (ft) * 2124.00 * Top Width (fU * t 178.77 • 1945.23 •
* Vel Total (ft/S) ' 4.00 t Avg. Vel. (f[/S) • i 6.40 * 1.87 '
+ Max Chl �pth (EU ' 10.40 ' Hydr. Depth (fU " * 8.40 r 3.03 �
* Conv. Total (cfs) `303249.8 ' Conv. (cfs) * •228333.3 • 74916.5 *
* Leng[h Wtd. (ft) * 497.60 * Wetted Per. (£t) • * 181.37 + 557.69 #
* Min Ch E1 (ft) ' 4818.25 * Shear (lb/sq ft) + * 0.92 * 0.33 +
� Alpha • 1.98 � Stream Power (lb/ft s) � * 5.87 * 0.63 t
r Frctn Loss (Et) * 0.78 * Cum Volume (acre-fU * 22.79 � 117.34 t 408.�3 �
" C & E Loss (ft) • 0.10 * Cum SA (acres) * 5.01 * 12.05 * 132.94 *
+�«r�t+xr+w�i�+aF+r�+t+r�:k:xxxt�xk�xwrxxxrrRx»�riiMr.:xxxitw��ix+x���tia��ia��+a�:,a�:.r.air+
Warning: ➢ivided flow computed foz this cross-sec[ion.
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
LATERAL STRUCTURE
RIVER: St. VTain RiVer
REACH: I-25 to Junction RS: 70584
INPUT
Description:
Lateral structure position = Next ot left bank station
�istance from Upsiream XS = 165
Deck/Roadway Width = 35
Weir CoeffiCien[ = 2.63
Weir Flow RefeTence = Water SnYfaCe
Weir Embankment Cooidinates �um = 4
Sta Elev Sta Elev Sta Elev Sta Elev
.:++.::,x.......+.x.....+::::.::.:a+:....::......+.........x«:..
2755 4630 2795 4827 2805 482"/ 2845 4830
t
Weir crest shape = Broad Crested
LATERAL STRUCTURE OUTPOT Profile }{100 year Lat Stzuct
.+.*.*..+..x.x>..x.xx..r...a.r..+..++«.e+.+....:::.xxxx....+.....x+..kr.r
* E.G. US. (ft) * 4829.60 • Weir Sta US (ft) ' 2767.20 *
* W.S. U5. (ft) " 4829.10 * WeiY Sta DS (ft) ' 2831.51 '
* E.G. DS (ftJ * 4829.42 t Weir Max Depth (ft) * 2.04 *
* W.S. DS (fU * 9828.97 t Weir Avg Depth (fU * 1.18 *
' 4 US (Cfs) *16297.26 * Weir Submerg � 0.00 *
* Q Leaving Total (cfs) * 242.25 * Min E1 Weir Flow (ft) * 4827.00 '
• Q DS (cfs) *16055.06 • Wr Top Wdth (ft) ` 64.30 *
• Perc Q Leaving * 1.49 • Q Gate Group (cfsl * *
* 4 Weir (cfs) * 242.25 • Gate Open Ht (ft) * +
` Q Gates (cfs) * k Gate #Open * *
* Q Culv (cfs) * * Gate Area (sq ft) * •
' Q Lat RC (cfs) * * Gate Submerg • +
* Weir Flow AYea (sq ft) * ']5.62 * Gate Invert (ft) + *
♦11fhi##44i+lf4!##f+tiR*-.!##i#4Fi##!f4##44*rt###4f'.!'.l4A1:f'Rfttittt;x�,liRih4#R*
warning: The conveyance ratio (ups[ream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
LATERP.L STRUCTURE OUTPIIT Profile q500 year Lat Struct
1f4Yf!#t414h�.lf411Rf1k##1f4+4i4#'F4RiRlF!#f{xf�R444+1l1Yii4tAA1i#Rii##t#At#i
* E.G. US. (ft) * 4832.86 R Weir Sta [7S (ft) * 2755.00 *
* W.S. US (ft) * 4831.93 * Weir Sta DS (ft� " 2845.00 *
* E.G. DS (ft) * 4832.59 ' Weir Max Depth (ft) � 4.85 *
* W.S. DS (ft) * 4631.75 * Weir Avg Depih (ft) • 3.51 *
" Q US (cfs) •3726B.23 * Weii SUbmeTg � 0.14 •
* Q Leaving Total (cfs) + 1597.94 R Min E1 Weir Flow (ft) w 4827.00 *
' Q DS (cfs) *35669.92 * Wz Top Wdth (ft) * 90.00 *
* Perc Q Leaving * 4.29 * Q Gate Group (cfs) * *
* Q Weir (cfs) + 1597.94 k Gate Open Ht (ft)� r *
a Q Gates (cFs) * + Gate qOpen � *
* Q Culv (cfs) * * Gate Area (sq ft) �* *
Page 44
STVRAIN.rep
, * Q Lat RC (cfsl * t Gate Submerg * *
* Weir Flow Area (sq ft) * 315.72 ' Gate Invert (ft) ' *
...:.:..:.::..:::.:..::.:.+....:..a.:..........a.+++..+..++.+++.+.+.s.+a+
LATERAL STRUCTURE OUTPUT Profile q10 yeac Lat Struct
.:a+..............:a.....++..+...+....xx.x....:..+..+..+a..r..:.w...x�«x.
* E.G. US. (ft) ' 4826.86 " Weir Sta US (fU ' *
• W.S. US. (ft) * 4826.59 * Weir S[a DS (fU * "
* E.G. DS (ft) R 4826.74 ' Weir Max Depth (ft) � *
* W.S. DS (ftl * 4826.50 * Weir Avg Depth (tt) ' '
* Q US (cfs) * 5950.00 ' weir Submerg * "
* Q Leaving Total (Cfs) ' 0.00 • Min El WeiY Flow (ft) ' 4827.00 •
* Q �S (cfs) * 5950.00 " wr Top wdth (ft) * �
* Perc Q Leaving * 0.00� * Q Gate Group (cfs) * *
* Q weir (cfs) ' * Gate Open Ht (fU * *
* 4 Gates Icfs) * * Gate #open * "
* 4 Culv (cfs) * * Gate Area (sq ft1 * '
* Q Lat RC (Cfs) ' * Gate Submerg * *
" Weir Flow Area (sq ft) t * Gate Invert (ft) « x
4N1xix}FtifxMR+£FAt4i�*44FY4RY#f1xRflttfft+fiflYY+#YAt#44liSi#4#iYixtfAxf
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indica[e the need [or additional cross sections.
LATERAL STRUCTURE OUTPUT Profile #50 year Lat Struct
•��+wtwr*+wa�i+w+xxxi�iax+te++ria��xx�awkit+r+��*..:�.t.::+t+��xwwx:��++i
* E.G. US. (fU • 4828.85 * Weir Sta US (ft) * 2776.45 •
* W.S. US. (ft) ' 4828.42 • Weir Sta OS (ft) * 2822.71 *
* E.G. DS Ift) * 4828.69 * Weir Max �epth (fU * 1.37 *
" W.S. DS (fU * 4828.30 * Weir Avg Depth (ft) * 0.83 *
* Q US (cfs) '72768.57 * Weir Submerg * 0.00 *
* Q Leaving Total (cfsl R 102.14 * Min E1 Weir Plow (ft) ' 4827.00 *
* Q DS (cfs) •12668.30 * Wr Top Wdth (ft) r 46.27 *
* Pezc Q Leaving * 0.79 * Q Gate Group Icfs) * *
* Q Weir (cfs) * 102.14 • Gate Open Ht (ft) * '
• Q Gates Icfs) * ' Gate #Open � *
! * Q Culv (cfs) * * Gate Area (sq fU ' *
� ' Q Lat RC (c£s) * Gate Submerg
• Weir Flow Area (sq fU " 38.25 * Gate Inver[ (ft) ' '
x+a.w�RxFxxa�x.+++it{+.,�;3*+w��iwr.x.tt«��+xF,:..at�r�«rwx:�i��xii:�i+�
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less ihan
0.7 or greater than 1.4. This may indicate Lhe need for additional cross sections.
CROSS SECTION
RIVER: SC. Vrain River
REACH: I-25 to Junction RS: 70235
ZNP[1T
Description:
Station Elevation Data num= 21
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.....x...xx.:.w..x...x�..++...x+x+.r....•+..++.....::++..x..:..+...x+..+x...+..+
2069 4829 2117 4827.2 2136.9 4821 2181 4817.4 2224.5 4817.4
2240.2 4819.3 2255.2 4820.8 2283 4826.3 2408 4823 2657 4823
2679 4825 2741 4825 3175 4825 3829 4827 3989 402'] .
4003 4825 4028 4825 4078 482'1 4126 4829 4192 4831
4469 4833
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
f'.Y�li;Ylk#'flfYfi+1#41I1:ihY#Y<1f1:#l4ki1i1M11:'R4FYR1t
2069 .07 2117 .04 2283 .07
Bank Sta: Left Aight Lengths: Left Channel Right Coeff Contr. Expan.
211'7 2283 800.5 494 504.5 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
3068 4469 4843 F
, CROSS SECTION OUTPUT Profile N100 year
ffii441A£t#fiYiYMvliti+Y:*kM4*S!4#'.l:Y1Y#F1il4!#iklYtihfYllf4kif1i1lfi1tf44f£15FtittilR'.!#tftfRfiw#xf
Page 45
STVRAIN.rep
• E.G. Elev (ft) ' 4828.95 * Element * Left OB * Channel t Right o8 *
, * Vel Head (ft) * 0.34 * Wt. n-Val. * 0.070 * 0.040 + 0.070 *
* W.S. Elev (ftl ` 4828.61 * Reach Len. (fU + 800.50 * 494.00 R 504.50 *
* Crit W.S. (ft) * 4826.38 • Flow Area (sq ft) * 26.46 * 1422.35 " 3396.74 `
• E.G. Slope (fe/fU *0.001522 • Area (sq ft) k 26.46 * 1422.35 • 6034.78 *
* Q Total (cfs) k16055.06 " Flow (cfs) * 17.34 * 8568.95 ` 7468.76 �
' Top Width (ft) * 2037.18 * Top Width (ft) * 37.57 * Lb6.00 * 1833.61 '
• Vel Total (ft/s) * 3.31 * Avg. Vel. (ft/s) ` 0.66 * 6.02 • 2.20 *
' Max Chl Opth (fU ^ 11.21 * Hydr. Dep[h (f[) * 0.70 * 8.5� • 4.33 *
* Conv. Total (cfs) *411529.7 R Conv. (cfs) * 444.5 *219642.9 t191442.3 *
* Length Wtd. (ft) " 500.36 " Wetted Per. (ft) * 3�.60 ' i67.82 ' 785.13 *
• Min Ch E1 (ft) * 4817.40 * Shear (lb/sq ft) ' 0.07 � 0.81 * 0.41 *
* Alpha t 1.97 * S[ream Power (lb/f[ s) * 0.04 * 4.85 * 0.90 *
* Frctn Loss (fU • 0.83 * Cum Volume (acre-£U * 27.02 * 109.19 ` 440.39 *
* C & E Loss (fU " 0.01 * Cum SA (acres) * 5.39 * 10.12 ' 113.42 *
+kt�h##�ii4itift*+h#x4F+1#tR�tit�Fik+kM#**i#*1i#41fYtty�#t1#fiMRift4FFMR11#+i#+k4lif4;KFfkh+fMt+
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used. �
CROSS SECTION OUTPUT profile #500 yeai
ata:.»�+�it�t:..x..xxxKKt«+t�+��+:�:���.ix.rv+iy�tt:.�:ttx:�rwxx+x++r��:rxrw++�i+�+::�x�x�w.i+
* E.G. Elev (ft) R 4831.87 • Element * Lef[ OH * Channel * Right 09 *
* vel Head (fU * 0.61 * Wt. n-Val. � �.070 * 0.040 * 0.070 *
* W.S. Elev (fU * 4037.27 ' Reach Len. (ft1 * 800.50 r 494.00 • 504.50 *
* Crit W.S. (ft) • 4828.26 * Flow Area (sq ft) * 151.90 * 1863.20 * 5481.51 *
* E.G. Slope (ft/ft) *0.002ll2 * Area (sq ft) * 151.90 * 1863.20 *11015.83 *
* Q Total (cfs) •35669.92 * Flow (cfs) * 309.57 *15828.71 �19531.64 *
* Top Width (fU • 2159.65 � Top width (ft) * 48.00 * 166.00 * 1945.65 *
• Vel Total (ft/s) * 4.76 ' Avg. vel. (ft/s) � 2.04 * 8.50 ' 3.56 *
3 Max Chl Dpth (fU * 13.86 * Hydr. ➢epth (ftl ' 3.16 * 11.22 * 6.98 *
' Conv. To[al (cfs) �776244.3 * Conv. (cfs) ' 6736.� *344462.5 *425045.1 *
* Length Wtd. (ftl * 504.65 * Wetted Per. (ft1 * 50.30 * 167.82 * 785.13 *
* Min Ch E1 (ft) * 4817.40 � Shear (lb/sq ft) * 0.40 * 1.46 * 0.92 *
* Alpha � 1.�2 * Stream Power (lb/ft s) " 0.81 * 12.43 * 3.28 *
* FrCtn Loss (ft) * 1.12 * Cum Volume (acre-ft) " 48.02 * 142.45 ' 834.63 *
f * C 5 E Loss (fU * 0.02 • Cum SA (acres) * 6.05 * 10.1� * 127.09 *
♦tiifftk+yrtK**xtt;�ft£tR#+RhRh#*k#i;i;f}iwtfRfh�thit#�Y+Yi+ii4ffiikRl!*44k44kxxxRf+fYhki+tY�f+f
Warning: The cross-section end points had to be extended vertically for the computed water surface.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between [he current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical dep[hs were found at this location. The cxitical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #10 y≥ar
xxw��:: .r�w+..�i::::xxxwr�x.+��yte+++��kat.x+r�i���F+x�a:+e:�rxw�t«ki+.�+..xix+xtr+a:�rw�+t•
* E.G. Elev (fU * 4826.44 * Element t Left OB * Cnannel • Right OB *
* vel Head (fU ' 0.20 * Wt. n-Val. * * 0.040 + 0.0�0 +
* W.S. Elev (ft) * 4826.25 * Reach Len. (fU • 800.50 * 494.00 • 504.50 *
* Crit w.S. IfU * 4822.BB * Flow Area (sq ft) * * 1031.67 t 1542.38 t
t E.G. Slope (ft/fU *0.001070 * AYea (sq ft) + * 1031.67 • 1985.87 +
" Q Total (cfs) * 5950.00 * Flow (Cfs) * * 4266.92 * 1683.08 *
* Top Width (ft) * 1525.18 * Top Width (fU • * 162.6� " 1362.51 *
" Vel Total (ft/s) R 2.31 * Avg. Vel. (ft/s) * * 4.14 ' 1.09 *
* Max Chl Dpth (ft) * 8.85 * Hydr. Dep[h (ft) * � 6.34 * 1.9� *
* Conv. Total (cfs) *181863.6 * Conv. (cfs) ' *130419.8 ' 51443.8 *
* Length Wtd. (f[) * 496.86 * Wetted Per. (ft) + * 164.34 � 783.12 *
` Min Ch E1 (ft) * 4817.4� * Shear Qb/sq ft) * * 0.42 � 0.13 *
* Alpha * 2.36 * Stream Power (lb/ft s) * * 1.74 * 0.14 *
* Frctn Loss (ft) * 0.64 * Cum Volume (acre-ft) a 13.31 * 80.44 * 138.25 •
' C & E Loss (fU * 0.03 * Cum SA (acres) * 3.49 * 9.98 � 88.93 t
##;*i##Fi#1AY;*1R;kk4ttttxFhA*kw#kfkt*1*#i1lFM+%Y1#ittR4t;;xk1Yk41#44}Ml14#kf*Mf1k1a111i4i*MR1F
warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile q50 year
+...,.+.+.�:+.+x.:,..:...:.k:xw+x................x+w+......+.++.+....xxx..::,..x..»+..+...x.x.+
� * E.G. Elev (ft) • 4828.26 * Element � Left OB + Channel " Right OB *
Page 46
STVRAIN.rep
+ Vel Head (Et) a 0.29 w Wt. n-Val. ` 0.070 * 0.040 * 0.070 ` .
' • W.S. Elev (fU " 4827.97 * Reach Len. (fU ` 800.50 � 494.00 R 504.50 *
• Cri[ W.S. (fU * 4825.88 • Flow Area (sq fU ' 7.92 * 1316.41 * 2895.76 `
* E.G. Slope (ft/ft) *0.001389 * Area (sq ft) * 7.92 t 1316.41 " 4869.48 •
* Q Total (cfs) *12668.30 " Flow (cfs) " - 3.31 * 7195.77 * 5469.21 *
+ Top width (fU * 2004.85 � Top width (fU * 20.55 • 166.00 + 1818.3a *
• Vel Total (f[/s) * 3.00 * Avg. Vel. (ft/s) * 0.42 * 5.47 * 1.89 *
t Max Ch1 Dpth (ft) w 10.57 � Hydr. Dep[h (fU * 0.39 * 7.93 " 3.69 •
* Conv. Total (cfs) '339B86.0 " Conv. (cfs) ' 88.9 *193060.0 •146737.0 t
* Length Wtd. (fU * 499.43 * Wetted Per. (fU ' 20.56 * 167.82 + 705.13 "
+ Min Ch E1 (ft) ' 4817.40 " Shear (lb/sq fU * 0.03 ' 0.68 � 0.32 *
• Alpha * 2.05 * Stream Power (lb/ft s) ' 0.01 • 3.72 • 0.60 +
� Frctn Loss (ftl * 0.77 � Cum Volume (acre-ft) " 22 J1 * 101.36 " 352.45 *
* C & E Loss (fU " 0.01 ' Cum SA (acie5l ' 4.82 * 10.30 + 111.15 '
xt«�+at*ri�Rs�.++«wa:fw,ww:.rata++�rRxw:�F+Fa+.xKwR++i+�w«tw.Rx.x+::+t«+���ixx:r::F.t�i�t�W++t
Note: Multiple critical depths were found a[ this location. The critical depth with [he lowest,
valid,
energy was used. �
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction RS: 69741
INPUT
Description:
Station Elevation Data num= 35
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
rxxr:i.itxt++reiw.:..x.�:tt+a�x.ww.t.�+.+w�a+�twrRR+++<+��.ra.�a�+�.�+x.:+R��s�+a*
2009 4820.4 2106 4825 2148 4816.45 2200 4816.45 2215 4819.45
2256 4825.65 2427 4824.75 2624 4823.85 2824 4824.25 3024 4823.65
31'1l 4823.35 3194 4021.75 3227 4823.55 3426 4825.05 3521 4822.85
3608 4823.05 3624 4824.15 3675 4824.25 3689 4823.35 3710 4825.45
3826 4824.75 3864 4029.85 3916 4828.45 3931 4826.05 3949 4824.85
3955 4824.85 3963 9828.55 4025 4830.65 4227 4832.35 442"] 4833.75
1� 4627 4834.05 482� 4B34.25 5027 4834.65 5227 9836.65 5227.1 4836.65
Manning's n Values num= 3 �
Sta n Val Sta n Val Sta n Val
� 1A1:F£f�:thk#Yxt'At+4ktF#YY}«f+F#kYiAti1Yh11:#t444i
2009 .07 2106 .04 2256 .07
Bank Sta: Left Right Leng[hs: Left Channel Right Coeff Contr. Expan.
2106 2256 268.5 448 455 .3 .5
Ineffective Plow num= 1
Sta L Sta R Elev Permanent
3270 5227.1 4843 F
CROSS SECTION OUTPUT Piofile 1{100 year
#l4Ri4F##fivlt4t4#1�.l4-.l1'.lAtfkiiM+4Rti#11Rli###�t£1#fltf�txiiM#fitt#1RMttfih4iilFstst4tAfiA+sftt4f
* E.G. Elev lftl * 4828.11 * Element • Left OB � Channel * Right OH *
' Vel Head (ft) " 0.35 • Wt. n-Val. * 0.070 * 0.040 ' 0.090 *
* W.S. Elev (ft) � 4827.'J6 r Reach Len. (ft) * 268.50 * 448.00 � 455.00 "
� Crit W.S. (ftl ' 4826.14 r Flow Area (sq fU * 108.34 * 1243.71 * 3707.93 +
� E.G. Slope (ft/ft) �0.�01808 • Area (sq ft) * lOB.34 * 1243.71 * 5933.69 k
• Q Total (cfs) *16055.06 * Flow (cfs) * 121.05 " �990.50 "' 7943.51 ;
• Top Width (ft) R 1919.54 � Top 47idth (Fi) • 78.63 * 150.00 * 1690.92
* Vel Total (ft/s) • 3.17 R Avg. Vel. (ft/s) ' 1.12 * 6.42 * 2.14 '
� Max Chl �pth (ft) ` 11.31 • Hydr. Oepth (fU " 1.38 " 8.29 * 3.66 +
a Conv. Tota1 (cfs) �3"17565.0 t Conv. (cfs) ` 2846.6 •187911.7 •186806.7
* Length Wtd. (Et) ' 450.22 * Wetted Per. (fU + 78.67 a 151.62 * 1014.11 ±
* Min Ch E1 (ftl ` 4816.45 • Shear Qb/sq ft) 0.16 * 0.93 0.41
* Alpha ' 2.�7 * Stream Power llb/ft s) w 0.17 + 5.95 * 0.88 '
* Frctn Loss (ft) * 0.85 � Cum Volume (acre-fU " 25 JB 94.07 371.08 *
* C � E Loss (ft) * 0.01 * Cum SA (aczes) ' 4.32 * 6.33 * 93.U1 •
•aRltMI1:RIFii'F4fF£�.l4fil'.!'.!t*4Yi#4kn₹i!k#Y14**ii11'Af#f1fl:kf#I1kAtiI4li4YYfhflfi#itt*4#i4i#I41MkY*
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depihs were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
Page 47
STVRAIN.rep
� CROSS SECTION OUTPUT Profile R500 year
iiilfflklfilik�Ai4itk�+fYfiF4#t+YYMl4if14#iri#4ffl4#*i'.!**i**4Y###i#k*14i#4#4#iii+#Ii'.!f*T*#i*fMiiM
R E.G. Elev (ft) * 4830.73 ' Element * Left OB ' Channel ' Right OB *
* Vel Head (ft) ' 0.56 � W[. n-Val. ' 0.070 * 0.�40 ' 0.070 '
r W.S. Elev (ft) * 4H30.17 ' Reach Len. (ft) " 268.50 t 448.00 * 455.00 *
* Crit W.S. (£t) * 482'1.81 * Plow Area (sq fU ' 336.49 * 1605.67 * 6154.80 "
* E.G. Slope (ft/fil �0.002333 * Area (sq fU * 336.49 k 1605.67 *10085.86 "
* Q Total (cfs) '35669.92 " Flow (cfs) * 780.81 *13892.94 •20996.17 *
+ Top Width (Et) • 2001.Bo i Top width (ft) * 97.0o x 150.00 ' 1754.B0 *
* Vel Total (ft/s) ' 4.41 '� Avg. Vel. (ft/s) ' 2.32 • 8.65 ` 3.41 *
* Max Chl Dpth (ft) � 13 J2 � Hydr. �epth (ft) * 3.47 + 10.70 * 6.07 *
* Conv. To[al (cfs) *938513.5 " Conv. (cfs) " 16165.9 •287640.8 '434706.'] *
• Lengih Wtd. (ft) * 448.93 * Wet[ed Per. (ft) * 98.83 * 157.62 ' 1014.11 •
* Min Ch E1 (fU " 4816.45 � SheaY (lb/Sq ft) ' 0.50 * 1.54 * 0.88 *
• Alpha ' 1.86 � Stream Powez Ub/ft s) * 1.15 * 13.34 � 3.02 *
* Frctn Loss (ft) * 1.00 * Cum Volume (acre-ft) * 43.53 ' 122.78 * 712.43 "'
• C s E Loss (ft) * 0.03 * Cum SA (acres) • 4.72 * 8.38 * 105.66 '�
#*Y#*i:iR*RRIARA+htttfiRYi4#4W#RM#+1fi###4FiYiYfR*+1f#*1*##i�4+t##1'.!4#*1k4i{ii4ii#iti'.!R'.lRYi##ki+*
warning: The cross-section end poinis had to 6e extended vertically for Che computed water surface.
Warning: The energy loss was greater than 1.o f[ (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowes[,
valid,
energy was used. .
CROSS SECTION OUTPUT Profile N10 year
a+�rw.xx+krit+:..+ktF++.�irx+:�:+t*irwrxxx�.�+�tt+errWRr:x+.++tst�x+++i+.rx.r..++.��a+�aa�r.wx.xr
* E.G. Elev (ftl ` 4825."18 * Element * Left OB � Channel * Right OH �
• Vel Head (ftl ' 0.28 R Wt. n-Val. * 0.070 * 0.040 * 0.070 t
* W.S. Elev (ft) • 4625.50 * Reach Len. (ft) " 268.50 * 448.00 * 455.00 •
* Crit W.S. (fU * 4822.59 ' Flow Azea (sq ft) * 3.52 ' 904.97 * 1419.74 *
t E.G. Slope (ft/ft) *0.001582 t AYea (Sq £t) " 3.52 • 904.9"/ • 2176.13 *
* Q Total (Cfs) * 5950.00 * Flow (Cfs) * 1.18 • 4419.41 ' 1529.42 *
* Top Width (ft) * 1768.58 * Top Width (ft) * 14.18 t 148.99 t 1605.41 '
* Vel Total Ift/s) * 2.56 * Avg. Vel. (ft/s) • 0.33 * 4.88 * 1.08 +
� * Max Chl Dpth Ift) * 9.05 * Hydr. Depth (ft7 * 0.25 R 6.07 t 1.44 �*
• Conv. Total (cfs) *149597.0 * Conv. (cfs) 29.6 R111114.3 * 38453.2
* Length Wtd. (ft) ' 449.34 " Wetted Per. (ft) * 14.19 * 150.60 � 985.07 �
� * Min Ch E1 (fU ' 4816.45 * Shear (lb/sq ft) ' 0.02 * 0.59 * 0.14 •
� * Alpha " 2.76 * Stream Power (lb/ft s) * 0.01 • 2.90 * 0.15 *
* Frctn Loss (ft) * 0.83 t Cum Volume (acre-ft) * 13.28 * 69.46 * 114.15 *
* C & E Loss (ft) • 0.05 " Cum SA (acres) * 3.36 * 8.21 * '/l."/4 *
��t�+��t�+�+x+++r,.x.xx+.xx:�.+�+.w+a«iit++r+..w.�x�:4;.+++.xwt�ax:x���+txtitit<+��*.x�xwrxtxx.�x
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
energy was used.
CROSS SECTION OUTPUT PYofile #50 year
+��x+a»w�+w�:::...:.::...�+�w+x�xi:i:+�.«wxx.+:��:�:�+:+t+r,i.xx�nrR:...t��tti�t+++++t+�s�+R+��.i
* E.G. Elev (ft) * 4827.48 * Element * Left �B � Channel * Right OB *
• Vel Head (ft) • 0.32 • Wt. o-Val. * 0.0']0 * 0.040 ' 0.0']0 *
* W.S_ Elev (ft) * 4827.16 * Reach Len. (ft) * 268.50 ' 448.00 * 455.00 *
+ Crit W.S. (fU * 4825.73 ` Flow Area (sq fU ' 66.38 " 1153.92 * 3100.92 *
+ E.G. Slope (Et/ft) *0.001714 * Area (sq ft) * 66.30 ' 1153.92 * 4925.55 •
* Q Total (cfs) R12668.30 * Flow (cfs) * 61.33 • 6866.02 * 5740.94 *
* Top Width (ft) "' 1888.78 t Top Width (ft) * 61.55 t 15D.00 f 1677.23 "
* Vel Total (ft/s) � 2.93 "' Avg. Vel. (ft/s) * 0.92 � 5.95 * 1.85 *
* Max Chl opth (ft) � 10.71 * Hydr. Depth (ft) * 1.08 • 7.69 • 3.06 *
* Conv. Total (cfs) *306002.4 * Conv. (cfs) " 1481.5 *165948.6 *138672.4 R
* Length Wtd. (ft) * 450.27 * Wetted Per. (ft) ' 61.58 * 151.62 * 1014.11 *
* Min Ch E1 (ft) * 4816.45 * Sheaz (lb/Sq ft) � 0.12 * 0.81 � 0.33 *
* Alpha ` 2.41 * Stream Power (lb/ft s) " 0.11 * 4.85 � 0.61 *
* Frctn Loss (ft) * 0.83 * Cum Volume (acre-ft) * 22.03 * 87.35 ' 295.73 *
* C S E Loss (fU * 0.03 • Cum SA (acres) " 4.06 a 8.30 * 90.91 �
#1##:lii*rtW*MFA#tR#tx++iiii+k+1*if1#}hRF#f##44ih+'F##%411:tik1'F4hfiiM'Y!#f4Yifi#ii41�il11i1l1il4iFfA
Warning: Divided Elow computed for this cross-section.
Note� Multiple critical depths were found at thie location. The critical depth with the lowest,
valid,
tenergy was used.
Page 48
STVRAIN.rep
� LATERAL STRUCTURE
RNER: St. Vzain River
REACH: I-25 to Junction RS: 69359 .
INPS7T
Description:
Lateral siructure position = Next ot left bank station
Distance from llpstream XS = 290
Deck/Roadway Width = 25
Weir Caefficien[ = 2.63
Weir Flow Reference = Water Surface
Weir Embankment Coordina[es num = 4
Sta Elev Sta Elev Sta Elev Sta Elev
i#1'.!4*kA'.l4i4f<At«+Fft£it�kitY#41#M1'R1#�Ytft4#41i₹FklRRklTi4�.!!f#+
3710 4827.5 3780 4826.5 3856 4826.5 3890 4827.5
Weir crest shape = Broad Crested
LATERAL STRUCTURE OUTPUT Piofile #100 yeaL Lat Struct
#lh+i##YYI#iYi##YMI14ifA#'.lF�tft4}#1YY#Aft��!#tii##4YF11t1i�liii##h1Y1lf1l14
* E.G. OS. (ft) * 4827.55 * weir Sta US (fU * 3737.29 *
* W.S. OS. (ft) ` 48a7.1� � Weir Sta DS (fU ' 3867.72 *
• E.G. DS (ft) * 4827.20 * Weir Max Depth (ft) * 0.52 *
* W.5. DS (ftl ` 4826."19 ' Weir Avg Depth (ft) * 0.36 *
t Q US (cfs) '16055.06 * Weir Submerg ' 0.00 *
• Q LeaVing TOCal (Cfs� * 79.51 * Min E1 Weir Flow (fU • 4826.50 '
* q DS (cfs) *15974.41 * Wr Top Wdth (ft) * 130.43 3
� Perc Q Leaving t 0.50 * Q Gate Group (cEs1 ' *
F Q Weir (cfs) * 79.51 * Gate Open Ht (ftl * `
� Q Gates (cfs) • * Gate #Open * '
* Q Culv (cfs) * � Gate Area (sq ftl * '
+ Q Lat RC (cfs) • * Gate Suhmerg * *
R Weir Flow AYea (Sq ft) * 47.24 * Gate InverL (ft) * `
� x+w.+tk�a�++x..x++.::��ii.R..x:���+�t++x:��tatarxx�w:��r.www�»xr:�+i+ty*
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyancel is less than
0.7 or greatei than 1.4. This may indicate the need for additional cross sections.
LATEAAI. STRUCTURE OUTPUT Profile #S00 year Lat Stiuct
�x+xr:.rr��.t++ax+wi.«..i+i++r:�:.:�+ii+�r:a:Fttwr�r�+itiir.x�..+i�.��+�xt�:
t E.G. US. (fU * 4830.06 " Weir Sta US (ft) * 3710.00 *
* w.S. US. (ft) * 4829.54 * Weir Sta DS (ft) * 3890.00 *
* E.G. DS (ft) * 4829.65 " Weir Max Depth (fU ' 2.89 *
' W.S. DS (ft) • 4829.15 ' '�'eir Avg DepCh (ft) * 2.55 '
* Q US (cfs) *35669.92 * Weiz Submerg * 0.00 *
* Q Leaving Total (cfs) ` 1942.91 * Min E1 Weir Flow (ft) + 4826.50 '�
* Q OS (cfs) *33689.70 ` Wr Top Wdth (ft) * 180.00 *
* Perc Q Leavin9 * 5.55 * Q Gate Group (cfs) * '
• Q Weil (Cfs) * 1942.91 • Gate Open HC (ft) • '
* 4 Gates (cfs) * * Gate #Open ` '
� Q Culv (cfs) + * Ga[e Area (sq ft) * `
* Q Lat RC (cfs) * * Gate Submeig ` *
* Weii Flow Azea (sq ft) * 459.66 * Gate Invert (ft) * *
+x.wxxx���+t��rr.x.::��rt�+:r.+ya�ir+t+irrxx:a3�t�xx.:tr���xww��+��Rxi+e:
LATERAL STRUCTURE OUTPUT Pzofile i{30 year Lat Struct
•��++�++t+�:r+.+�t+R+Ki::�«s+r:.+t+r+�x��t«���x::�r:�r�x�.+�xtx�xa*.�+yxrx�+
* E.G. US. (ft) ` 4825.21 * Weir Sta US (Et) * r
* W.S. US. (ft) ' 4824.91 t WeiY Sta DS (ft� * "
* E.G. DS (£U ' 4824.85 * Weir Max Dep[h lft) * '
* W.S. DS (fU " 4824.39 * Weir Avg Depth (ft) * '
* Q US (cfs) * 5950.0o W Weir Submerg ' '
* Q Leaving Total (cfs) * 0.00 * Min E1 Weir Flow (ft) * 4826.50 *
* Q DS (cfs) * 5950.00 • Wr Top wdth (ft) ' '
* Perc 4 Leaving * 0.00 � Q Gate Group (cfs) ' "
* Q Weir (cfs) ' "' Gate Open Ht (ft) * "
* Q Gates (cfs) • • Gate kOpen * •
* Q Culv (cfs) ' * Gate Area (sq fU " `
* Q Lat RC (cfs) ' * Gate Submerg ' `
, weir Flow Area Isq ft) • * Gate Invert (fU ' '
. .::++.xx....x.�«.,....:...............................:«...,.+++�...+.a...
Page 49
STVRAIN.rep
� Warning: The conveyance ratio (upstream conveyance divided by downstream conveyancel is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
LATERAL STROCTURE OUTPUT Profile #50 year Lat Stz�ct
R/R#tt4+it#t#ih++itl+FkYrtlFxhFkitf#tikMk#RfF#tistf4A+i#ffM#Ms#f4S144*+4*#a
* E.G. US. (ft) " 4826.92 " Weir S[a US (fU * '
• W.5. US. (fU ' 4826.54 * Weir Sta DS (ft) � '
* E.G. DS (ft) * 4826.57 * Weir Max Depth (ft) • x
` W.S. DS (ft) • 4826.16 * Weir Avg Depth (fU * *
� Q US (cfs) '12668.30 + Weir Su6merg ' R
* Q Leaving Total (cfs) ' 0.00 * Min E1 Weir Flow (fU • 4826.50 *
* Q DS (Cfs) *12668.30 ' Wr Top Wdth (ft) • *
* Perc Q Leaving * 0.00 � Q Gate Group Icfs) * �
* Q Weir (cfs) ' * Gate Open Ht (ft) * '
' 4 Gates (cfs) " ' Gate NOpen " •
* Q Culv (cfs) * * Gate Area (sq ftl * *
* Q Lat RC (cfs) � • Gate Submerg * *
' Weir Flow Area (sq ft) * ` Gate Invert (ft) * *
•.r+xr.F.;itt.:F::.+.�tx+xwxx:+:aa++rwwa..+.+w++t+ia.x+Kr:.::t*�trw+ix�++
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction R5: 69293
INPUT
Description:
Station Elevation Data num= 20
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.........+.+.�w«.«..x:x..+++.+....xx:.:.+++.x.x•.•+x+«...+.x..�x.:++:++.+.++..x»
2030-5 462"1.2 2089 4824 2109 4815.6 2163 4815 J 2163 4818.2
2219 4820 2229 4825 3074 4823 3254 4823 3622 4825
/ 3671 4827 3696 4829 3760 4829 3805 4827 3820 4825
3844 4825 3860 4829 3966 4831 4302 4831 4997 4833
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
...+:«.........x+..x.xx+.x+x....:+.+x..++w..x.:.
2030.5 .07 2089 .04 2229 .07 �
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E�cpan.
2089 2229 268.5 449 455 .3 .5
, Ineffective Flow num= 1
Sta L Sta R Elev Permanen[
347'7 47"1'1 4843 F
CROSS SECTION OUTPUT Profile q100 year
r�......:.x:..x+.:.:.:w++..r.xxxx+x.++.w..+.x:..:.....x....+:.:.s.+...:.x..+.•:+....+..+.++.+....
+ E.G. Elev (ft) * a827.25 * Element * Lef[ OB �" Channel * Right OB •
t Vel Head (ft) * o.40 * Wt. n-Val. * 0.070 * o.0a0 ^� 0.070 *
' W.S. Elev (ft) � 4826.84 * Reach Len. (ft) T 268.50 * 449.00 ` 455.00 *
* Crit W.S. (ftl * 4825.63 * Flow Area (sq ft) * 73.94 * 1222.48 "' 3817.48 *
* E.G. Slope (ft/ft) *0.001963 * Area (sq ft) * 73.94 * 1222.48 k 4247.52 •
* Q Total (cfs) *15974.41 * Flow (cfs) * 87.86 ' 8320.17 w 7566.38 *
t Top Width (ft) * 1675.39 * Top Width (ft) * 51.99 * 140.00 *� 1483.39 *
* Vel Total (ft/s7 * 3.12 * Avg. Vel. (ft/s) * 1.19 • 6.91 * 1.98 *
* Max Chl Dpth (ft) * 11.24 + Hydr. Depth (ft) • 1.42 + 8.73 ` 3.06 *
* Conv. Total (cfs) '360510.1 • Conv. (cfs) * 1982.9 •187769.3 *1"]0757.9 *
* Length Wtd. (ft) * 451.07 * Wetted Per. (ft) * 52.07 * 145.40 * 1248.01 w
* Min Ch E1 (fU * 4815.60 * Shear (16/sq ft) * 0.17 1.03 * 0.37 *
' Alpha * 2.66 ' Siream Power (lb/ft s) * 0.21 * 7.01 R 0.74 *
* Frctn Loss (fG) * 0.92 • Cum volume (acre-ft) * 25.22 * 81.39 * 317.91 *
� C & E Loss (ft) * 0.03 * Cum SA (acres) * 3.92 * 6.84 * 76.43 *
*#4Y##Yi4f1:141:'.lk+I4+�.lf'.!*f*#S'.!*##4##+*1l11vlf4##f4*##4+*4*FS*4fikhlYfikR#Y#lefhllflf#i4S##f+Yi'fiii4•
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depihs were found a[ Chis location. The critical depth with the lowest,
valid,
energy was used.
Page 50
STVRAIN.rep
� CROSS SECTION OUTPUT Profile #500 year
.�x:.<..+..:..:x.«....:x++.+..+..�.+....�.k.:4:�+...xr..+•x+k«+.++....+.+.::i:����+...a:.i::•.:x
* E.G. Elev (ft) * 4829.69 ' Element * Left 06 * Channel * Right OB •
• Vel Head (ft) * 0.50 • Wt. n-Val. k 0.0"70 " 0.040 * 0.070 *
* W.S. Elev (fU * 4829.20 i keach Len. (ft) * 268.50 • 449.00 * 455.00 �
" Crit W.S. (ft) * 4827.13 ` Flow Area (sq EU " 210.29 * 15A.56 k 6751.01 •
* E.G. Slope (ft/fU '0.002144 • Area (sq f[) * 210.29 * 1551.56 * 7845.77 *
" Q Total (cfs) �33856.30 * Flow (cfs) * 473.85 R12935.16 �20447.29 #
• Top Wid[h (fU * 1839.83 * Top Width (ft) " 58.50 * 140.00 * 1641.33 *
* Vel Total (ft/s) * 3.98 * Avg. Vel. (ft/s) * 2.25 * 8.34 * 3.03 *
* Max Chl Dpth (EU • 13.59 # Hydr. Depth (ft) ' 3.59 ' 11.08 � 5.41 *
* Conv. Total (cfs) •731202.9 * Conv. (cfs) • 10233.8 *279363.9 *441605.2 �
� Length Wtd. (fU * 450.95 t Wetted Pez. (fU * 60.58 * 145.40 � 1248.01 *
� Min Ch E1 (ft) * 4815.60 * Shear (lb/sq ft) * 0.46 * 1.43 * 0.72 •
w Alpha * 2.03 " Stream Power (lb/ft s) * 1.05 * 11.91 * 2.19 •
* Frcin Loss (fU � 0.97 * Cum Volume (acre-ft) * 41.85 * 106.55 * 618 J8 *
* C 6 E Loss (ft) * 0.01 * Cum SA (acres) + 4.24 * 6.89 * 87.92 *
++�rr,.r<ax..::tt�t��.���xxR�e+�+++t�irwwt:at�+�x�.:t+:rt+�a.��r,++::�+�+�.�a..�.��:rk�x+i�iw��r++ .
Warning: The cross-sec[ion end points had to be extended vertically for the compssted water surface.
Note: Multiple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTZON OUTPUT Profile #10 year
+xx�x+a�++t�iixxxwr.t:i.rMx.��+t+t+«xr.�t«t�++rxrx+.t++i�x�x�+��.r+�+xiv.xx+:��t+w��ix+��k+�+++wxx
* E.G. Elev (fU ` 4824.90 * Element " Lef[ OB ' Channel � Right OB *
* Vel Head (Et) "' 0.46 • Wt. n-Val. • 0.070 * 0.040 * 0.070 *
* W.S. Elev (ft) ' 4824.44 * Reach Len. (ft) • 268.50 * 449.00 * 455.00 *
* Crit W.S. (fU " 4821.74 " Flow Area (sq fU ' 1.77 * 886.12 * 882.69 �
* E.G. Slope (ft/fU *0.002175 • AYea (Sq ft) * 1.77 * 886.12 * BB7.45 *
* Q Total (cEs) R 5950.00 * Flow (cfs) ' 0.64 * 5151.27 * 798.09 �
� Top Width (ft) * 1199.94 * Top Width (ft) * 8.03 * 138.88 � 1053.03 "'
* Vel Total (ft/s) * 3.36 ' Avg. Vel. (ft/s) � 0.36 * 5.81 * 0.90 �
* Max Chl Dp[h (£U • 8.84 * Hydr. Oepth (ft) * 0.22 * 6.38 * 0.87 *
' Conv. Total (cfs) '127591.4 • Conv. (cfs) * 13.6 *110463.6 � 17114.2 *
j � Length Wtd. (fU ' 949.70 * Wetted Per. (ft) ' 8.05 * 144.15 ' 1011.17 *
� ' Min Ch E1 (ft) ' 4815.60 * Shear (lb/sq fU * 0.03 ' 0.83 • 0.12 *
+ Alpha ' 2.60 '�' Stream Powez (lb/ft s) * 0.01 * 4.85 • 0.11 *
* Frctn Loss (ftl * 0.95 * Cum Volume (acre-ft) * 13.26 R 60.25 * 98.15 *
� C 6 E Loss Ift) * 0.01 * Cum SA (acres) • 3.29 * 6.73 * 57.86 �
;ik#hi:kAf141###14+tt#1*144!##41i�.l1f11�iiAft#4'kiiffl:f!#Yi4'IRiR4Yi11feMIRR#+#Fikl};1#i114l4feF#*#ik
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The ciitical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPIIT Profile #50 year
411iiRt'.!k}#11R/iAf1l1+fF1**l1i14!*4i4iRAAi+�'.!'.l1:�Ri4i14Il:!}*ilfRlA+14i1Rt4ii#f11RRt}*i#Y1fifR1R*1
* E.G. Elev (fU ' 4826.62 * Element ' Left OB * Channel ' Right OH *
* Vel xead (ft) * 0.41 * wt. n-Val. ` 0.070 * 0.o40 * o.o'lo *
* W.S. Elev (ft) * 4826.21 * Reach Len. (ft) ' �68.50 * 449.00 * 455.00 *
* Ciit W.S. (ft) " 4825.22 * Flow Area (sq ft) ' 44.59 y 1133.48 • 3024.08 *
* E.G. Slope (ft/ft) '0.002013 * Aiea (sq fU * 44.58 * 1133.48 * 3311.74 *
* Q Total (cfs) *12668.30 * Flow (cfs) • 45.31 + 7427.16 * 5195.82
* Top Width (fU ' 1640.88 • Top Width (ft) * 40.37 * 140.00 ' 1460.51 *
* Vel Total (ft/s) * 3.01 + Avg. Vel. (ft/s) * 1.02 * 6.55 * 7.72 *
* Max Chl Dpth (ft) * 10.61 R xydr. Depth (ft) ' L lo � 8.10 * 2.42 *
* Conv. Total (cfs) *282360.'1 * Conv. (cfs) * 1010.0 "'165542.2 *115808.4 *
' LCngth Wtd. (ft) ` 450.94 ' Wetted Per. (ft) + 40.43 ; 145.40 * 1248.01 `
* Min Ch E1 (ft) * 4815.60 * Shear (16/sq fU 0.14 0.98 * 0.30
* Alpha * 2.90 * Stream Power (lb/f[ s) * 0.14 • 6.42 * 0.52 +
* Frctn Loss (fU * 0.92 � Cum Volnme (acre-fU * 21.69 ` 75.59 * 252.71 �
* C 6 E Loss (fU * 0.02 * Cum SA (aCie5) * 3.75 " 6.81 ' 74.52 •
♦41iff#'f11RMl1�'fflkRfY11:*ktlif!#4+#1F##Y'1�iiF4#Fk/i###f11*!*iR1i11Mi4i11hif#i1lY1#*fif111<***R}i
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this loca[ion. The critical depth with the lowest,
valid,
energy was used.
' CROSS SECTSON
Page 51
STVRAIN.rep
� RIVER: St. Vrain River
REACH: I-25 to Junc[ion RS: 68844
INPUT
Descrip[ion:
Station Eleva[ion Da[a num= 28
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
F'RRkItMMY4kfi4+tttt�Ff�.lF+tS'.!'.l�.lRAT*'.l4Mk1Tf#A'.lt1'TtAT'.lF11M1�.lfF1M'.l1+i1A**I'fM*illk#i4
2052 4826 20"71 4823 2099 4814."]5 2172 4814.85 2202 4823.05
2400 4823.45 2602 4822.35 2802 4822.55 2843 4822.75 3000 4823.25
3200 4821.75 3234 4822.25 3248 4821.25 3295 4823.05 3402 4825.25
3601 4824.35 3656 4827.25 3674 4828.05 3690 4823.65 3706 4823.65
3732 4828.05 3"/56 482�.55 3801 4029.15 4001 4830.45 4200 4831.35
4401 4832.15 4601 4832.75 4002 4833.25
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
:.:+....++.+x......«...«......+..xx«.+.+.a..+...
2052 .07 2071 .04 2202 .07
Hank Sta: Left Right Lengths: Left Channel Right Coeff Con[r. E�cpan.
2071 2202 341.5 610 556 .1 .3
Blocked Obstructions num= 2
Sia L Sta R Elev Sta L Sta R Elev
t�x+r�itt...t:::t:::.:::.:::x+;.:::::�.ait���.:+
2316 2�73 4819.9 2859 3523 4821.57
CROSS SECTION OUTPUT Profile #100 year
iF*hiFtfttYt+�x�tft�t*1R#T'A#'.lTkAfh#1'A#tf:ltiYRF'.lff{FvlR'.lf+TAf1MA4'.lYf1'kilifh#+ttt₹tR�#i+lt;#1;'.lffhY
• E.G. Elev (E[1 * 4826.29 ` Element ` Left 08 * Channel • Right OB *
* Vel Head (fU * 0.50 * Wt. n-VaL • 0.070 * 0.040 • 0.070 •
* W.S. Elev (ft) * 4825 J9 * Reach Len. (fU ' 341.50 � 610.00 ' 556.00 *
* Crit W.S. (ft) * * Plow Area (sq ft) * 24.62 * 1200.90 '� 3"180.08 *
* E.G. Slope Ift/ft) •0.002141 * Area (sq fU * 24.62 • 1200.90 '� 3780.08 *
* Q Total (cEs) *15974.41 * Flow (cfs) * 29.94 + 8936.97 t 7007.51 *
,i� * Top Width (ft) * 1611.36 * Top Width (ft) • 1"].66 " 131.00 ' 1462.70 *
� Vel Total (f[/s) • 3.19 • Avg. Vel. (ft/5) * 1.22 ' 7.44 * 1.85 *
+ Max Chl Dpth (ft) * 11.04 • Nydr. �epth (ft) • 1.39 * 9.17 * 2.58 *
' Conv. To[al (cfs) *345262.3 * Conv. (cfs� • 647.0 *193158.'/ *151456.5 "
• Leng[h Wtd. (ft) * 571�.11 " Wet[ed Per. (ft) * 17.88 * 133.29 '� 1463.30 *
* Min Ch E1 (ft) * 4814.75 ' Shear (lb/sq ft) * 0.18 * 1.20 ' 0.35 *
* Alpha * 3.19 * Stream Power (lb/ft s) * 0.22 * 8.96 * 0.64 *
* Frctn Loss (ft) * 1.18 * Cum Volume (acre-ft) * 24.92 • 68.90 • 275.98 *
* C a E Loss (fU * 0.02 * Cum SA (acres) * 3 JO t 5.44 • 61.04 �
i+f+FtRF'.lf:k*F+Mik##1k#14t*'kI'Y#itYilkifi+Y4111f1R+Yi4Yili+iYiY##++##i#kk�11it1'.lflki+fitiYlY#₹#iik4
Warning: Divided flow computed for this cross-section.
warning: The energy loss was greater than 1.0 ft (0.3 m) . be[ween the curren[ and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile #500 yeaT
��++.���t+�t:rt�::��t::tt�.t::ti+x:��x{x::::.::�xt..x�xwx.rxxa+r,r+wi.*i�����k�xxxx�+.xii�rrar��
* E.G. Elev (ft) * 4828.72 '" Element * Left OB • Channel * Right 08 �'
� Vel Head (ft) * 0.53 * Wt. n-Val. * 0.070 • 0.040 • 0.070 '
` W.S. Elev (fU "' 4828.19 * Aeach Len. (ft) * 341.50 " 610.00 + 556.00 *
* Crit W.S. (fU * * Flow Area (sq ft) • 70.04 "' 1A5.03 * 7385.76 *
* E.G. Slope (£t/ft) *0.002145 "' Area (sq ft) + 70.04 * 1515.03 '� 7385.76 �
* Q Total (cfs) *33689.70 � Flow (cfs) * 151.71 *13177.58 320360.41 *
* Top Width (ft) * 1721.91 * Top Width (ft) + 19.00 * 131.00 * 1571.91 •
* Vel Total (ft/s) � 3.76 * Avg. Vel. (ft/s) • 2.17 * 8.70 * 2.76 �
* Max Chl Dpth (fU ' 13.44 * Hydr. Depth (ft) * 3.69 r ll.57 * 4.70 •
* Conv. Total (cfsl *727389.3 R Conv. Icfs) • 3275.5 t284515.2 "439598.6 *
* Leng[h W[d. (fU * 562.68 • Wetted Per. (ft) * 21.42 * 133.29 * 1573.07 *
' Min Ch E1 (ftl * 4814.75 r Sheaz (lb/sq ft) 3 0.44 * 1.52 " 0.63 *
+ Alpha * 2.43 * Stream Power (lb/ft s) * 0.95 ' 13.24 * 1.73 *
* Frctn Loss (ft) * 1.12 � Cum Volume (acre-ft) * 40.90 ` 90.74 * 539.23 �
* C 5 E LOss (ft) * 0.03 * Cum SA (aCres) ' 4.00 * 5.49 * 77.14 *
+4t+fiii*i'.11k'�if�fti�ftitif;#I:�.lR1:1i44+'RiIM*FYW#ftkfiA4f##Att}#1:1}I'R*f##F+441f1tf}ih4hf#++lf4#k�.li
warning: The cross-section end poin[s had to be extended vertically for the computed water surface.
Warning: The energy loss was greater than 1.o ft (0.3 m) . between the current and previous cross
. section. This may indicate the need for additional cross sections.
Page 52
S1'VRAIN.rep
� CROSS SECTION OUTPUT Profile q10 year
��+xrw:+;:a:z+.++:rt�F::�rt+earv*xr«��++*+�x��+3x++ww.wwx++�+�t.r�iWi+*t�i�r•xt�+���i+�i��+ix��
' E.G. Elev (fU * 4823.93 * Element * Left OH • Channel � kight OH *
t Vel Head (ft) * 0.50 � Wt. n-Val. • 0.070 " 0.040 • 0.070 `
• W.S. Elev (fU ` 4823.43 • Reach Len. (ft) " 341.50 * 610.00 * 556.00 '
* Crit W.S. (fU ' 3 Flow Area (sq fU ' 0.58 + 891.57 * 755.06 *
t E.G. Slope (ft/fU *O.OD2066 ' Area (sq fU * 0.58 * 891.57 * 755.06 *
• Q Tota1 (cfs) * 5950.00 t Flow (cfs) * 0.20 * 5344.23 " 605.57 *
k Tap width (ft) * 1229.50 '" Top Width (ft) * 2.'ll * 131.00 • 1095.79 �
* Vel Total (ft/s) ` 3.61 * Avg. Vel. (ft/s) • 0.34 • 5.99 * 0.80 '
' Max Chl Dpth (ft) ' B.6B k Hydr. Depth (ft) * 0.21 " 6.81 * 0.69 *
* Conv. Total (cfs) *130905.3 * Conv. (cfs) ' 4.3 *117577.9 • 13323.0 *
+ Length Wtd. (ftl ' 590.40 � Wetted Per. (fU * 2.74 * 133.29 * 1095.86 *
* Min Ch E1 (ft) ' 4814.75 * Shear (lb/sq ft) ` 0.03 * O.B6 * 0.09 *
• Alpha • 2.48 * Stream Powez (lb/ft s) * 0.01 * 5.17 * 0.0'1 '
* Frctn Loss (ft) * 1.09 R Cum Volume (acre-ft) * 13.26 * 51.09 * 89.5"/ R
* C & E Loss (ft) * 0.03 • CUm SA (aCie5) * 3.26 * 5.34 W 46.64 '
c.:.:�ttrirx.:..:...�.�ttxw+.x...i+s+�++t+t��ta�.+at+t++rir:xx.:.::�ii++aw+.+x++trarrr�rw�+xxxxxx
Warning: Divided flow computed for this cross-section.
Warning: The ener9y loas was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile #50 year
++..:......r:..+::.::....�..a...+a..rx.++.+..+...++�..w,.:t:..+.+.x..:..«+++.+.�x..+«.s..+.+..ak.
* E.G. Elev (fU `" 4825.68 ' Element '� Left OB * Cklannel + Right OH '
+ Vel Head (ft) t 0.48 � Wt. n-Val. • 0.0']0 * 0.040 * 0.070 *
+ W.S.� E1ev (ft) ' 4825.20 ' Reach Len. (ft) ' 341.50 • 610.00 * 556.00 •
* Crit W.S. (ft) * * Plow Area (sq ft) " 15.33 * 1123.B2 * 2924.72 *
" E.G. Slope (ft/ft) *0.002047 * Area (sq fU ' 15.33 * 1123.82 • 2924 J2 • �
* p Total (cEs) *12668.30 • Flow (cEs) ` 15.56 * 7ffi5.05 * 4827.68 *
` Top Width (ft) * 1577.42 ' Top Width (ft) ' 13.93 ^ 131.00 ' 1432.49 '
� Vel To[al (ft/s) * 3.12 " Avg. Vel. (ft/s) * 1.02 * 6.96 " 1.65 *
� Max Chl �pth (ft) * 10.45 t Hydr. Depth (ft) * 1.10 • 8.58 " 2.04 *
3 Conv. Total (cfs) *279982.0 * Conv. (cfsl * 343.9 *172941.4 "106696.6 •
� * Length Wtd. (ft) • 5�4.52 * Wetted Per. (ft) � 14.11 ' 133.29 ; 1432.94 ±
� • Min Ch E1 (ft) ' 4814.75 * Shear (lb/sq ft) 0.14 1.OB 0.26
• Alpha " 3.19 ' Stream Power (lh/ft s) • 0.14 * �.50 * 0.43 *
* Frctn Loss (fU * 1.17 � Cum Volume (acre-ft) ' 2L 50 * 63.96 • 220.14 '
* C s E Loss (ft) * 0.01 * Cum SA (acres) ` 3.58 * 5.42 * 59.41 t
� ..++.+.......:.«.+.:....xx:...r«....+,xw::++.+x.x:.++.a..+:.......x::.:+.r..+.++.+.��+++.+.:...
Warning: Divided flow computed foz ihis cross-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction RS: 68234
INP[IT
Description:
Station Elevation Oata num= 16
S[a Elev Sta Elev Sta Elev Sta Elev S[a Elev
♦tf4iYYil�fi#IYFFii14#itff�i#FYtti4Y4�i#1MFi444#fAiii##Mift44i4i+'.lt��f#Y'Fiffi+#1
1000 4829 1035 4820 1184 4820 1196 4814 12"]2 4814
1285 4820 2242 4823 2586 4823 2760 4825 2785 4827
2802 4825 282� 4825 2873 4829 3324 4831 3553 4B33
4674 4833
Manning's n values num= 3
Sta n Va1 Sta n Val Sta n Val
•41:R#4RffI£#kYff1A#4i4R1:k�tf11:FI4#11khi4lfk##ikli
1000 .07 1184 .04 1285 .07
Bank Sta: Left Right Lenqths: Left Channel Right Coeff Conir. E�cpan.
1184 1285 341.5 610 556 .1 .3
CROSS SECTION OUTPUT Profile #100 year
�iiwa+++aww:tax«�+;;ar*rw:x+rarr:�a�.rwxkx��3.�Wrirrr,+aaf:+awk�+�t*xR+swirwxx����r:it*�arrx
*RE*GA�Elev (ft) ' 4825.09 • Element * Lett OH ' Channel * Right OB '
Page 53
STVRAIN.rep
• Vel Nead (f[) " 0.45 " Wt. n-Val. • 0.070 � 0.040 * 0.070 '
, � W.S. Elev (ft) * 4824.64 ` Reach Len. (fU • 341.50 ' 610.00 � 556.00 `
� Crit w.5. (ft) * * Flow Area (sq ft) ' 733.82 ' 1000.00 • 3691.27 a
* E.G. Slope (ft/fL1 *0.002009 k Area (sq ft) * 733.B2 * 1000.00 ` 3691.27 *
* Q Total (cfs) *15974.41 r Flow (cfs) * 1868.07 • 7541.03 • 6565.32 '
* Top Width (EU * 1712.05 • TOp Width (ft) * 167.06 ' 101.00 " 1443.99 *
R Vel Total (ft/s) • 2.94 � Avg. Vel. (ft/s) * 2.55 * 7.54 * 1.78 '
* Max Chl Dpth (fU ' 10.64 • Hydr. Depth (fU ` 4.39 � 9.90 ' 2.56 *
" Conv. Total (cfs) '356435.3 ' Conv. (c£s) ' 41682.0 R16B262.1 *146491.1 �
* Length Wtd. (fU * 557.73 • Wetted Per. (ft) t 167.65 • 1�3.73 * 1444.00 •
* MiR Ch E1 (ft) ' 4814.00 � Shear (lb/sq ft) * 0.55 ' 1.21 * 0.32 *
+ Alpha * 3.33 * Stream Power (lb/ft s7 + 1.40 • 9.12 * 0.57 •
� Frctn Loss (fU * 1.12 " Cum Volume (acre-ft) * 21.94 * 53.49 ` 228.30 *
* C & E Loss (ft) • 0.03 " Cum SA (acres) * 2.98 � 3.82 * 42.49 R
..+.....:::::...,::.:+.+..+.xx......xxr..++«:.......+.wr...�x.tx..x+w.xx....«+x.:++..+x.x«....+
Warning: The energy loss was grea[er than 1.0 ft (0.3 m) . be[ween the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile q5D0 yeaz
4x*1F}txllliff4�ktfii#11F*1wf*ft+#1f1ki4i#t1*#R1%#+flxkll4lkl44lk1t#tYfi#iY+t##thf#rt*M+w�£h*ft•
� E.G. Elev (ft) * 4827.57 * Element " Left OB � Channel * Right OB •
* Vel Head (ft) * 0.42 * wt. n-Val. * 0.0�0 * 0.040 * 0.070 *
• W.S. Elev (fU * 482�.15 " Reach Len. (ft) * 341.50 R 610.00 * 556.00 '
• Crit W.S. Ift) * * Flow Area (sq ft) � 1164.13 * 1252.80 * 7505.8� *
* E.G. Slope (ft/ft) *0.001845 * Area (sq ft) ' 1164.13 * 1252.80 * �505.8� •
* Q Total (cfs) *33689.70 * Flow (cfs) • 3716 J6 *10523.�0 *19449.24 *
* Top Width �ft) * 1844.48 * Top Width (fU * 176.79 * 101.00 � 1566.69 •
R Vel Total (ft/s) * 3.40 t Avg. Vel. (ft/s) * 3.19 * 8.40 � 2.59 *
k Max Chl �pth (ft) * 13.15 � Hydr. Depth (ft) * 6.58 * 12.40 * 4.79 *
* Conv. Tota1 (cfs) *784240.3 + Conv. (cfs) • 86520.0 *244974.3 *452746.1 '
< Length Wtd. (fU * 552.08 * Wetted Per. (ft) ' 1�7 JO ^ 103 J3 ' 1566.99 =
i Min Ch E1 (ft) * 4814.00 ` Shear (lb/sq ft) ' 0.75 ' 1.39 * 0.55 �
* Alpha • 2.35 • Stream Power (lb/ft s) T 2.41 * 11.69 ' 1.43 *
* FYCin Loss (fU ' 1.02 ' Cum Volume (aCie-ft) • 36.14 ^ 71.36 * 444.20 *
� C & E Loss (ft) * 0.02 t Cum SA (acies) ' 3.23 * 3.87 * 51.11 •
::xi:++.::�r..+.i�.aaw«k.x«+xx+++i+tia��a+.*:+a+��t��tt�w+�+�++�xi�w�+t+�+trrxwx.+..�.:a:xx:::.
!
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile #10 yeax
kMfRi+St#if#��rtMf+itftt4+ii#fFi#fRTAR4tRi�!#kx#Y+kYa#wi4*kwlArtWhRiif�r4AS+Rrtf£xkRTFttx4i}�tttf+
t E.G. Elev (fU * 4822.81 * Element " Left OB * Channel * RighC OB "
* Vel Head (ft) * 0.40 * Wt. n-Val. w 0.�70 * 0.040 * 0.070 '
* W.S. Elev (fU * 4822.47 * Reach Len. (ft) x 341.50 * 610.00 � 556.00 *
* Crit W.S. (ft) • ' Flow AYea (Sq Et) * 370.64 • 7�4.57 * 927.64 +
R E.G. Slope (ft/ftl *0.001659 * Area (sq ft) ` 370.64 * 774.57 * 927.64 *
* Q Total (cEs) ' 5950.00 * Flow (cfs) � 564.13 * 44�9.25 * 908.62 �
` Top Width (fU ' 1028.69 * Top width (ft) * 15fl.38 * 101.00 * 769.31 *
+ Vel Total (ft/s) * 2.8� " Avg. Vel. (ft/s) * 1.52 • 5.�8 * 0.98 *
* Max Chl Dpth (ft) t 8.41 • Hydr. Depth (£t) * 2.34 • 7.67 * 1.21 *
* Conv. Total (cfs) '146082.2 " Conv. (cfs) * 13850.4 t109923.8 * 22308.0 •
* Length Wtd. (fU + 5�2.74 • Wetted Per. (ft) ' 158.68 > 103.73 * 769.31 *
* Min Ch E1 (ft) * 4814.00 * Sheaz (lb/sq ft) * 0.24 ^ 0.77 * 0.12 r
' Alpha . * 3.10 • StYeam POWei (lb/ft S) • 0.37 * 4.47 * 0.12 `
' Fictn Loss (ft) * 1.04 R Cum Volume (acre-ft) � 11.80 * 39.42 * �8.84 *
* C & E Loss fftl * 0.01 * Cum SA (acres) � * 2.62 � 3.72 * 34.73 t
f#Mhlkwf�£f##4i4#!l1+i+##4#4##1kWxiAR1tF444#i##Wi+iiiY#i4i�4FMi4fi141iii#ii#iF#+#1Y*#nYiiYi##ki
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sec[ions.
CROSS SECTION OUTPUT Profile q50 year
11f++ti11ii1A£1xfxRifli#4i1*#i%ikiRATARhx*1kf!#*1!#f##4![*##M*###+YifltMklxi�}1*lkixlxlhflxSxfY
` E.G. Elev (ft) * 4824.51 • Element * Left OH + Channel � Right oB *
* Vel Head (ftl ' 0.46 • Wt. n-Val. * D.070 ' 0.040 * 0.070 *
* W.S. Elev (ft) t 4924.04 ' Reach Len. (ft) � 341.50 * 630.00 * 556.00 �
* Crit W.S. (ft) * * Flow Area (sq ft) * 633.94 * 939.19 * 2837.68 i
a E.G. Slope (ft/fU *0.002027 * Area (sq ft) " 633.94 * 939.19 * 2837.68 "
* Q Total (cfsl "12668.30 * Flow (cfs) R 1484.75 * 6822.93 * 4360.63 •
* Top Width (fU ` 1657.33 * Top Width (fU * 164.72 ' 101.00 ' 1391.61 •
• Vel Total (ft/5) * 2.8� * Avg. Vel. (f[/5) • 2.34 " �.26 ' 1.54 *
* Max Chl Dpih (ftl * 10.04 * Hydr. Depth (ft) ' 3.85 • 9.30 * 2.o4 �
Page 54
STVRAIN.rep -
-. , * Conv. Total (cfs) *281400.8 � Conv. (cfs) " 32980 J *151557.6 • 96862.6 *
� k Lengih Wtd. (fU ` 560.37 * Wetted Per. (fU * 165.23 * 103.73 ` 1391.62 k
r Min Ch E1 (f[) • 4814.00 + Shear (1b/sq ft) * 0.49 * 1.15 + 0.26 *
• Alpha * 3.62 + Stream Power (lb/ft s) * 1.14 * 8.32 t 0.40 "
* Frctn Loss (ft) ' 1.13 * Cum Volume (acre-ft) * 18.96 * 49.51 * 183.36 *
* C fi E Loss (ft) ' 0.04 � Cum SA (acres) ^ 2.88 * 3.79 * 41.39 '
:r+a��ii�wrwti�+i����aia�+K+r::...:tt+iwr«xRr�xrE�w�+.+i+:�s�+a*�ari.xR.++++tx+at++i�xii+;xr�::
Warning: The energy loss was greater than 1.o ft� (o.3 ml . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: SC. VYain RiveY
REACH: I-25 to Junction RS: 6�624
INPUT
Description:
Station Eleva[ion Data num= 50
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
x.++.+.rw:+..,....:xx.�+..+:«...+.+.::..+...wa.x,w..•...:.....::.x:::++.+..:....
2528 4825.8 2597 4817.4 2640 4816.5 2651 4816.5 2678 4814.85
2696 4813.45 2742 4913.45 2�69 4824.95 2794 4824.25 2816 4824.25
2842 4820.95 3017 4820.35 3083 4821.45 3117 4820.05 3218 4820.05
3417 4820.05 3507 4820.05 3527 4820.45 3619 4821.65 3817 4819.85
3918 4821.25 3990 4818.55 4017 9819.05 4169 4824.45 4193 4828.65
4213 4823.15 4226 4823.15 4243 4826.75 4419 4828.25 4608 4829.25
4616 4828.35 4623 4829.25 4816 4829.45 501� 4830.35 5172 4831.85
5198 4831.85 5206 4829.35 5217 9831.25 5223 4830.55 5230 4832.15
5250 4829.25 5418 4830.05 5532 4831.25 5541 4830.55 5549 4831.25
5620 4831.35 5818 4831.55 6020 4831.95 6221 4831.95 6356 4832.�5
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
..+..+...:.:..+....«.++.....++.....,..:..+...:..
� � 2528 .07 2651 .04 2�69 .07
Bank Sta: Left Right Lengths: Left Channel Righ[ Coeff Contr. Espan. �
2651 2�69 604 810 815 .1 .3
- Hlocked Obstructians num= 1
Sta L Sta R Elev
+rxr«+t:�t++r�+xxxr..:x,
3099 4069 4820.03
CROSS SECTION OUTPUT Profile #100 year
i41ilflx#4##ki#k1f#xffik4NYµMtxf#4wMf1Fi4i#4F��itfkh#hftft4lYi+nAFx#ki+W#ikx}FktftYl4#k#4#iiRfi
* E.G. Elev (fU * 4823.94 * Element * Left OB * Channel • Right OH *
* Vel Head (f[) * 0.34 ' Wt. n-Val. R 0.070 ' 0.040 � 0.070 *
* W.S. EleV (ft) • 4823.60 * ReaCh Len. (fU • 684.00 • B10.00 ' 815.00 •
� Crit W.S. (ft) * * Flow Area (sq ft) ` 521.85 • 971.80 * 3991.53 *
R E.G. Slope (ft/ft) '0.002006 • Aiea (sq ft) ' 521.85 ' 9�1.90 • 3991.53 *
* Q Total (cfs) *159�4.41 * Flow (cfs) ' 1442.19 " 6631.67 * �900.55 •
* Tap Width (ft) * 1560.42 * Top Width (ft) ' 104.92 * 114.83 * 1340.67 *
• Vel Total (ft/s) r 2.91 * Avg. Vel. (ft/s) • 2.76 * 6.82 • 1.98 *
* Max Chl Dpth (ft) * 10.15 * Hydr. Dep[h (ft) * 4.97 * 8.46 ` 2.98 *
^ Conv. Total (cfs) '356638.7 * Conv. (cfs) ' 32197.8 *148056.2 '176384 J *
* Length Wtd. (fU ' 801.6� � wetted Per. (ft) * 105.31 * 117.00 * 1341.10 ;
' Min Ch E1 (fU " 4813.45 * Shear (lb/sq fU * 0.62 * 1.04 0.37
* Alpha • 2.59 * Stream Power Qb/ft s) * 1.�2 ; �.10 ; 0.74 *
� Frctn Loss (fU * 1.44 * Cum Volume (acre-ft) * 17.02 39.68 1�9.27
� C & E Loss (fU ` 0.03 � Cum SA (acres) * 1.91 ^ 2.30 ' 24.72 *
1fxlR#+4#41fRiiiii#f�tAxtY#1xti4ilffR*44fAtM4##kxRkiSR4++l4!##1i1iFf#iii�llYil4#4+111FARxFFxfi4
Warning: Divided flow computed for this cross-section.
warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CAOSS SECTION OUTPUT PZofile #500 yeai
!f*ikkllRTf#k#xAtxtRYifAtt11It4�4ARft4fi*�4##iihk£i*#FF#kY#Rfi*h###11YI*1i*i1llFi4k**4#f111f#tt
* E.G. Elev (ft) ^ 4826.52 " Element ' Left OB � Channel * Right OB *
• Vel Head (ft) * 0.36 � Wt. n-Val. * 0.070 " 0.040 * 0.070 �
+ * W.S. Elev (ft) • 4826.17 ' Reach Len. (£t) * 684.00 " 810.00 * 815.00 •
" • Crit W.S. (ft) * • Flow Aiea (sq ft) * 817.62 • 1272.49 * 7612.23 '
Page 55
STVRAIN.rep
* E.G. Slope (ft/ft) '0.001865 � Area (sq ft) * 817.62 * 12�2.49 * 7612.23 *
* Q Total (cfs) *33689.70 * Flow (cfs) * 2637.37 * 9829.10 *21223 .24 �
+ Top Wid[h (ft) * 1689.01 * Top Width (ft) * 123.00 R 118.00 * 1448.01 *
t Vel Total (ft/s) ' 3.4� * Avg. Vel. (ft/5) ' 3.23 * 7.72 • 2.79 '
+ Max Chl Dp[h IEt) * 12.72 * Hydr. Depth (ft) * 6.65 * 10.�8 � 5.26 *
* Conv. Total (cfs) *�80069.6 � Conv. (cfs) * 61067.0 `227588.2 *491414.3 *
* Length Wtd. (ft) ' 802.54 * Wetted Per. (ft) * 123.88 • 120.45 * 1449.2� *
* Min Ch E1 (ft) * 4813.45 * Shear (lb/sq ft) * 0.77 * 1.23 * 0.61 *
* Alpha * 1.92 * Stream Power (lb/ft s) * 2.48 * 9.50 * 1.71 *
* Frctn Loss (ft) • 1.30 � Cum Volume (acre-ft) ' 28.38 r 53.68 * 347.71 `
t C s E Loss (ft) * 0.03 * Cum SA (acses) * 2.06 * 2.33 * 31.87 *
♦Fih4M+ikY411it1xt411tf414ti+ftiillkhRlRi{ffi£fh tYfti#Yi*ti44i11x1xfxtRlFlkllRxAt4t4�ttttxi
Warning: Divided flow computed for this cross-section.
Warning: The cross-section end points had [o be extended vertically for the compu[ed water surface.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the wrren[ and previous cross
section. This may indicate the need for additional cross Sections.
CROSS SECTION OUTPUT Profile #10 year
•xwwR+rx�*xx«�K��+.wrt.r.R�x�.:::::.::.ai�r�:�++r+�xw.we�wxxwxrxxxrxx::xw+�<i�+�:.irr�.wxx..::+.
* E.G. Elev (fU • 4821.7� • Element * Left OB � Channel * Right OB *
" Vel Head (ft) * 0.37 * Wt. n-VaL � 0.070 • 0.040 * 0.070 •
* W.S. Elev (ft) * 4821.39 ` Reach Len. (ft) • 684.00 * 810.00 ' 815.00 '
' Crit W.S. (fU t * Flow Area (sq ft) * 310.28 ' 724.09 ' ll5�.01 *
* E.G. Slope (ft/fU *0.001981 � Area (sg ft) * 310.28 * 724.09 * 1157.01 �
* Q Total (c£s) ' 595�.00 • Plow (cfs) * 6B4.13 * 4170.66 * 1095.21 `
* Tap Width (ft) * 138�.82 * Top Width (ft) • 86.79 * 109.65 * 1191.38 �
* Ve1 Total (ft/s) * 2.�2 ' Avg. Vel. (ft/s) * 2.20 * 5.76 * 0.95 *
* Max Chl Dpih (ftl * 7.94 * Hydr. �epth (Et7 R 3.57 � 6.60 ' 0.97 k
� Conv. Total (cfs) x133673.9 * Conv. (cfs) R 15369.7 * 93698.9 t 24605.2 r
' Length wtd. (ft) • 798.95 * wetted Per. (ft) k 87.04 * 111.37 " 1191.52 *
• Min Ch E1 (£t) * 4813.45 * Sheai Qb/sq ft) � 0.44 + 0.80 � 0.12 '
+ Alpha � 3.25 * Stream Power (16/ft s) * 0.97 * 4.63 x 0.11 *
* Frctn Loss (ft) r 1.41 * Cum Volume (acre-ft) * 9.13 * 28.93 ' 65.53 *
' C & E Loss (ft) • 0.05 • Cum SA (acres) • 1.66 * 2.24 R 22.22 *
+.+xxrx+i�++�ir.xw.rx+xt+.�.rt�.++x::::::+.F�+ar.�x.Rw:xRaxxxxx.xrxxx�x:.xxRrxt+x.+..+::.::::s:
warning: Divided flow computed for this cross-section.
Warnin9: The energy loss was greater than 1.o ft (0.3 m) . between the wrrent and previous cross
sec[ion. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile k50 yeaz
...+..+..++...+..+.a:..a«..+..........:«...x::+.:::s:.+:.a.....++rr..x.+x...x.x.+.xrxx++....+.x
* E.G. Elev (fU ' 4823.34 • Element ' Left OH • Channel • Aight OB *
* Vel Head (f[) • 0.34 3 Wt. n-Val. ' �.070 • 0.040 ' 0.070 '
• W.S. Elev (ft) * 4822.99 ' Reach Len. (fU * 684.00 * 810.00 ' 815.00 '
• Crit W.S. (ft) * ` Flow Area (sq ft) * 459.82 * 902.70 * 3169.86 *
" E.G. Slope (ft/ft) �0.002017 • Area (sq ft) • 459.82 * 902.70 ' 3169.86 •
• Q Total (cfs) '12666.30 ` Flow (cfs) � 1209.82 * 5932.75 * 5525.74 *
• Top Wid[h (ft) * 1515.46 � Top Width (fU ' 99.95 * 113.41 * 1302.11 *
* Vel Total (ft/s) � 2.�8 • Avg. Vel. (ft/5) ' 2.63 * 6.57 * 1.73 *
* Max Chl Dpth (ft) x 9.54 • Hydr. Depth (ft) * 4.60 * 7.96 * 2.45 *
" Conv. Total (c£s) *282067.8 " Conv. (cfs) • 26937.3 *132096.4 '123034.1 *
k Length W[d. (ft) t 801.08 • Wetted Per. (ft) • 100.30 * 115.46 + 1302.38 *
' Min Ch E1 (ft) � 4813.45 " Shear Qb/sq £t) • 0.58 + 0.98 1 0.31 *
• Alpha ' 2.89 • Stream Powez (lb/ft s) ' 1.52 * 6.47 * 0.53 *
' Frctn Loss (ft) " 1.44 * Cum Volume (acre-ft) * 14.67 * 36.61 " 144.90 `
� C & E Loss (ft) * 0.04 * Cum SA (aCies) ' 1.84 * 2.29 ' 24.20 *
.�.�i.xa*+�+rs.w.x+��«i+���+rF*+xx.xwy+.wx+...�xxx+rxxs+:Rs:x:x++++w�t+i��xxt+<+�+::a�s�:�.:wxx �
warning: Divided flow computed for this cross-section.
Warning: The energy loss was greater than 1.o ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
LATERAL STRUCTURE
RIVER: St. VYain Rivei
REACH: I-25 to Junction RS: 6']48"]
INPUT
Description: This is the last location where water overtops [he berm and spills
into the lakes.
Lateral structure position = Next ot le£t bank station
Page 56
STVRAIN.rep
Distance from Upstream XS = 50
� Deck/Roadway Width = 39
Weir Coefficient = 2.63
Weir Flow Reference = Watez Surface
weir Embankment Coordinates num = 4
S[a Elev Sta Elev Sta Elev Sta Elev
:...+,........:....+..�a.......:.:..+..+....:..+...+..:.....«...
5602 4824.1 5686 4824 6150 4823.8 6217 4823.5 .
Weir cre5C shape = Broad Crested
LATERAL STRUCTURE OUTPUT Profile #10� year Lat Struc[
.x+a...=...++a...��aa.+.+..+..«+.:+++++.+x.x.«.+++++..xx..+...:rw�.�•+..+
� E.G. US. (fU ' 4823.85 • weir Sta US (£t) ` '
' W.S. US. (fU * 4823.52 * Weir Sta DS (fU ' `
* E.G. OS (Et) • 4822.73 " Weir MaX Depth (ft) ' '
' W.S. DS (ft) ' 4822.48 � Weir Avg Depth (ft) ` a
+ Q US (cfs) *15974.41 * Weir Submerg * '
� Q Leaving Total (cfs) ' 0.00 • Min E1 Weir Flow (ft) * 4823.50 *
* Q OS (Cfs) •15974-41 ` WI Top Wdth (ft) ' `
k Perc Q Leaving * 0.00 * Q Gate Group (cfs) * *
+ Q Weir (cfs) ' * Gate Open Ht (ft) ' *
+ Q Gates (cfsl * ' Gate #Open * `
+ Q Culv (cfsl ' • Gate Area Isq ft) " "
• Q La[ RC (cfsl * * Gate Submerg * *
* Weir Flow Area (sq ft) ' ' Gate Invert (fU * *
x.t*+a.x::ttri.+.+::+r�::+.x�x:�t.x+::ar+.Rr::t+a«rt.�«::+twx+.:++i«+x.r
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
LATERAL STRUCTURE OUTPUT Profile #500 yeaY Lat Stiuct
�i�t++:x+tai«xx.+F:x.�t.ir.+++t++axkaarix.:s��itrw«w+tw+r+x.:�r*rtx.x+t+xx
* E.G. US. (ft) ' 4826.44 ' Weir Sta OS (£t) ' 5602.00 '
• w.5. US. (ft) " 4826.09 • Weir Sta �S (ft) * 6217.00 "
* E.G. �5 (ft) * 4825.44 * Weir Max Depth (ft) ' 1.99 '
� " W.S. DS (ft) ' 4825.16 ' Weir Avg Depth fft) * 1.74 '
� * Q US (cfs) *33689.�0 * Weir Submerg • 0.78 *
• Q Leaving Total (cfs) * 3060.2� * Min E1 Weir Flow (ft) * 4823.50 R
. * Q �S (cfs) *30632.43 ` Wr Top Wd[h (ft) * 615.OD
* Perc Q Leaving ' 9�.0� * Q Gate Group (cfsl * `
R Q Weir (cfs) * 3060.27 ' Gate Open Ht (ft) * *
* Q Gates (cfs) ' ' Gate #Open ` `
* Q Culv (cfs) * * Gate Area (sq ft) * `
* Q Lat RC (cfs) * * Gate Submerg * *
* Weir Flow Azea (sq ft) * 106B.61 • Gate Invert (fU ` '
...:.++.::.+++.+.:..:.+....�....x........+.x....a.....+..xx«:.....:..+...
LATERAI. STRUCTURE OUTPUT PYofile �10 year Lat StruCt
x�x:�+t�::at��+++i�r�r:�r.xR�++x:��a�x..+t++�:.a��Kw.+t+.+*at+r�x:.�t+RR+
• E.G. US. (ft) • 4821.68 � Weir Sta US (fU ' *
+ W.S. OS. (fU * 4821.31 * Weir Sta DS (ft) ` *
' E.G. ➢S (ft) ' 4820.5� ' Weir Max Depth (ft) ` *
* W.S. DS (fU * 4820.33 * Weir Avg Dep[h (ft) * `
* Q US lcfs) * 5950.00 * Weir Submerg * *
* Q Leaving Total (Cfsl • 0.00 * Min E1 WeiI Flow (ft) * 4823.50 *
* Q DS (cfs) ' 5950.00 • Wz Top Wdth (ft) "
* Perc Q Leaving " o.00 * 4 Gate Group (cfs) * *
• Q Weir (cfs) " * Gate Open Ht (ft) +
* q Gates (cfsl * * Gate #open *
* Q Culv (cfs) * * Gate Area (sq ft) ` `
Q Lat RC (cfs) F * Gate Submer9 ' �
+ Weir Flow Area (sq ftl * ' Gate Invert (fU * '
+..«......++.+.......«..+..+....+...r...«........:...:a.+.::.«.+..a.+..+.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0 J or 9rea[er than 1.4. This may indica[e the need for additional cross sections.
LATERP.L STRUCTURE OUTPUT Profile #50 year Lat Struct
�++»xx.....+:.x:.....+..�+«:a.ta�.i�ki...�+.::::�.+x::.�.+...:.wx..x..+«.
� E.G. US. (ft) * 4823.25 ' Weir Sta US (fU � "
* W.S. US. (ftl * 4822.91 * Weir Sta DS (£t) ' `
� + E.G. DS (ft) * 4822.12 ' Weir Max Depth (ft) ' `
Page 5�
STVRAIN.rep
* w.S. DS (fU * 4921.88 t Weir Avg Depth (ft) ` ` �
' • Q US (Cfs) '12668.30 " Weir Submerg * *
' Q Leaving Total (cfs) * 0.00 * Min E1 Weir Flow (ft) * 4823.50 *
* Q DS (cfs) *12668.30 " 47r Top Wd[h (ft) ' *
* Perc Q Leaving ' 0.00 * Q Gate Group (cfs) * *
� Q Weir (cfs) * * Gate Open Ht (ftl * '
* Q Gates (cfs) � * Gate kopen * *
� Q Culv (cfs) ' * Gate Area (sq ft) ` * .
+ Q Lat RC (cfs) ` * Gate Submerg • *
� Weir Flow Area (sq ft) * * Gate Invert (ft) • '
.+..:.«.«.......«::...:x.++.:..:.r+.+:+...,.....++:..x..r....x...:::.....
warning: The conveyance ratio (upstream conveyartce divided by downstream conveyance) is less than
0.� or greater than 1.4. This may i�dicate the need for additional cross sections.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Sunction kS: 66814
INPUT
Oescription:
Station Elevation Data num= 50 �
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
4tFkitf#YW1x�FtR�xf�1##*�Is�fi++fxf###*#*FA!*t₹t�ih*hWix£�x££t�tiii#iiYiif#FtFi♦
2402 4822.3 2423 4819 2541 4816 2561 4815.55 2582 4812.85
2604 4812.85 2629 4812.85 265B 4815.85 2674 4820.55 2689 4821.45
2697 4815.45 2�19 4814.35 2765 4816.25 280� 481�.25 2835 4919.85
2917 4820.05 3120 4818.95 3198 4819.55 3221 4B1B.75 3318 9816.65
3521 4818.35 3785 4818.25 3921 4821.05 3983 4823.65 4120 4824.85
4321 4824.95 43�4 4826.55 4384 4820.95 4404 4820.95 4421 4826.25
4432 4824.75 4523 4824.75 4722 4824.95 4804 4825.05 4925 4824.25
4841 4827.35 4881 4826.�5 4925 4827.05 5123 4828.% 5258 4828.65
5272 4830.05 52H2 4827.35 5296 4829.35 5321 4829.35 5339 4827.35
5348 4828.35 5523 4829.25 5721 4829.45 5920 4830.45 612� 4830.05
� Manning's n Values num= 3
� Sta n Val Sta n Val Sta n Val
«rir�fi����+::���+»�x+«:�i�+�x�,t�+++��::�ikxxx�
. 24C2 .0� 2541 .04 2674 .07
Baak Sta: Left Aight Lengths: Left Channel Right Coeff Contr. Espan.
2541 26�4 1040 1�79 1040 .1 .3
Blocked Obstructions num= 1
S[a L Sta R Elev
!!kl444Atik*t!*iiSSi4xw!
�4a2 �Q�2 4825
CROSS SECTION OUTPUT Profile #100 year
.+..:........ x.x:..:.:<....:......x....«..+.++..xxx=+:....x..x..xw..x+..a:..:..+...++.....+
* E.G. Elev (ft)' * 4822.47 * Element * Left OH * Channel * Right OB *
• Vel Head (ft) ' 0.24 ` Wt. n-Val. ' 0.0�0 ' 0.040 R 0.070 *
� W.S. Elev (EC) * 4822.24 " Reach Len. (ft) • 965.00 * 965.00 * 965.00 *
• Ciit W.S. (ft) • ' Flow Area (sq ft) • 592.08 • 1032.30 ' 4448.62 *
+ E.G. Slope (ft/ft) *0.001612 * Area (sq ft) * 592.08 * 1032.30 * 4448.62 �
• Q Total (cfs) *15974.41 * Flow (cfs) * 1326.90 * 6006.07 ` 8641.44 *
w Top Width (fU * 1573.28 * Top Width (ft) R 138_59 • 133.00 * 1301.69 *
* Vel Total (ft/5) • 2.63 • Av9. Vel. (ft/s) * 2.24 • 5.82 * 1.94
* Max Chl Dpth (ft) ' 9.39 * Hydr. Depth (fU * 4.27 • 7.76 * 3.42 *
t Conv. Total (cfs) *397822 J * Conv. (cfs) ' 33044.7 *149573 J r215204.2 *
a Length Wtd. (ft) * 965.00 * Wetted Per. (ft) • 138.88 " 134.01 • 1304.51 *
* Min Ch E1 (ft) * 4812.85 * Shear (lb/sq fU ` 0.43 k 0.78 • 0.34 *
t Alpha * 2.19 * Stream Power (lb/ft s) • 0.96 * 4.51 * 0.67 *
* Frctn Loss (ft) * 2.0� • Cum Volume (acre-ft) * 8.28 t 21.05 w 100.31 R
* C 6 E Loss (ft) * 0.01 + Cum SA (acres) * ' * "
AFxA>h1#Sk##k4#rthxfAiti#i#!W*Akfi!#i#+ik*14lki>iFh##i#RkW#4A11xIf#�#1#k4k41k1lh++#Yi+4iY1#41k4f
Warning: Divided flow computed for ihis cross-section.
Warning: The energy loss was greater [han 1.0 ft (0.3 ml . between the current and previous cross
section. This may indica[e the need for additional cross sections.
�, CROSS SECTION OUTPUT Profile #500 year
� w.x*x.�x.tk+i.x.x.«:��irtx.w.+tx.+R�+r��+Rww�+33i��:R.«x.x.iiixKRwwat+rt++i«x.w�+ax:x�x+w�y�ksx
Page 58
STVRAIN.rep
* E.G. Elev (ft) • 4825.20 * Element * Left OB * Channel * Right OB *
. * Vel Head (ft) • 0.26 � Wt. n-Val. ` 0.070 * 0.040 * 0.070 •
+ W.S. Elev (ft) • 4624.94 * Reach Len. (ft) ' 965.00 * 965.00 � 965.00 '
* Crit W.S. (ft) ' * Flow Area (sq fU ' 96�.53 * 1391.55 * 0793.52 •
• E.G. Slope (ft/ft) �0.001393 * Area (sq ft) * 967.53 • 1391.55 * 8193.52 *
* Q Total (cfs) *30632.43 * Flow (cfs) ` 2756.13 * 9183.98 '18692.32 *
* Top Wid[h (fU ` 2230.80 � Top Wid[h (ft) • 139.00 * 733.00 i 1958.80 •
� Vel Total (ft/s) * 2.90 * Avg. Vel. (ft/s) R 2.85 ` 6.60 + 2.28 *
* Max Chl Dpih (Et) • 12.09 • Hydr. Oepth (ft) • 6.96 * 10.46 * 4.18 *
• Conv. Total (cfs) *820661.6 * Conv. (cfs) * 73838.4 *246044.4 *500��8.8 *
* Length Wtd. (fU * 965.00 F Wetted Per. (fU * 141.93 * 134.01 " 1962.8� R
* Min Ch E1 (ft) • 4812.85 * Shear Qb/sq ft) * 0.59 + 0.90 * 0.36 *
• Alpha ` 2.01 * Stream Power (lb/ft s) * 1.69 " 5.96 k 0.83 "
* Frctn Loss �ft) • 1.�9 ` Cum Volume (acre-fU ' 14.36 R 26.91 t 199.85 *
• C & E Loss If[I ' 0.01 ' Cum SA (acres) * ' * '
.+..x.:.«.a+.....::.:.+...........+,...�.:.+rxx.x.x:+.+:....:...+......x::::,.+...a...+:.....xx
Warning: Divided flow computed for this cross-section. '
Warning: The cross-section end points had to be extended vertically for the computed water surface.
Warning: The ener9y loss was 9reater than 1.0 ft (0.3 m) . between the curren[ and previous cross
section. This may indicate the need for additional cross sec[ions.
CROSS SECTION OUTPUT Profile #10 yeai
•i#4x}TliYhtilhlftli+Ykii+f�ttklYfx14i+41fki#+#h4x+xi4li#1i41#tiii###f1x+i4RYW�1ltffi##i1fxA4i#
* E.G. Elev (ft) * 4820.31 • Element ' Left OB * Channel � Right OH '
* Vel Head (ft) + 0.21 * Wt. n-Val. • 0.070 * 0-040 * 0_070 *
* W.S. Elev (fU ' 4820.10 * Reach Len. (fU * 965.00 * 965.00 • 965.00 *
* Crit W.S. (ft) * * Flow Area (sq ft) * 310.05 * 748.07 * 1770.21 "
* E.G. Slope (ft/ft) *0.001588 * Aiea (Sq f[) � 310.05 * �48.01 * 1770.21 '
• Q Total (cfs) * 5950.00 ' Flow (cfs) " 480.42 * 3513.11 • 7956.46 *
* Top Width (ft) ' 1440.25 * Top Width (ft) • 124.9� * 131.45 * 1183.82 "
* Vel Total (ft/s) ' 2.10 ` Avg. Vel. (ft/s) * 1.55 • 4.70 + 1.11 '
* Max Chl Dpth (fU * �.25 * Hydr. Depth (EU ' 2.48 • 5.69 ' 1.50 �
* Conv. Tota1 (cfs) •149288.0 ' Conv. (cfs) � 12054.0 • 88145.5 ` 49088.5 *
* Length Wtd. (ft) * 965.00 � Wetted Per. (fU. * 125.09 ; 132.40 � 1185.61 {
* Min Ch E1 (ft) * 4812.85 * Shear (lb/sq ft) * 0.25 0.56 0.15
� i Alpha r 3.08 • Stream Power (lb/ft s1 * 0.38 y 2.63 i 0.16 h
* Frctn Loss (fU 1.91 * Cum Volume (acre-ft) 4.26 15.24 38.15
* C & E Loss (ft) ' 0.01 * Cum SA (acres) ` t
•w:.:+txx+:xrixw..::.+a+w::.+txr::+�.x::ixxxw++x�xr.t.at••x..t.x.Kt.tt+ir�+x:��tyx.x+.+.y�xx�+.
� Warning: Divided flow computed for [his czoss-section. �
Warning: The energy loss was greatez than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need £or additional cross sections.
CROSS SECTION OUTPUT Profile #50 yeas
#Ffi+hT4ii44�flfi#*Yix�+iiifi#�t#xk4YYfh4#Y1lfi141fI�iY#if�itii#Nffii###*FixliWill4*Yfi1lT#f#11R
+ E.G. Elev (ft) * 4821.86 * Element • Left OB • Channei ' Right OB +
• Vel Head (ft) * 0.23 ' Wt. n-Val. * 0.070 • 0.040 • 0.0�0 {
• W.5. Elev (ftl • 4821.63 • Aeach Len. (ft) ` %5.00 * 965.00 ' 965.00
* Crit W.S. (fU * • Flow Area (sq ft) ` 509.73 * 952.16 + 3669.54 *
* E.G. Slope (ft/ft) '0.001620 � Area (sq fU ' 509.93 * 952 16 ` 3669.54 *
� Q To[al (cfs) �12668.30 � Flow (cfs) * 1056.11 i 5262.15 * 6350.04 +
� Top Width (ft) ' 1552.07 * Top Width (ft) � 134.�6 133.00 * 1284.31
• Vel Total (ft/5) � 2.47 * AV9. Vel. (ft/s) ' 2.07 ' 5.53 * 1.73 *
* Max Chl Dpth (ft) * 8.78 * Hydr. Depth (ft) * 3.78 * 7.16 * 2.86
* Conv. Total (cfs) '314�15.9 • Conv. (cfs) ' 26236.7 •130�26.5 *757752.8 *
* Length Wtd. (ft) * 965_00 * Wetted Per. (ft) { 135.00 * 134.01 * 1286.88 y
� Min Ch E1 (ft1 * 4812.85 * Shear (lb/sq ft) 0.38 0.72 0.29
� Alpha • 2.39 + Stream Power (lb/ft s) * 0.�9 * 3.97 * 0.50 +
+ Frctn Loss (f[) * 2.01 * Cum Volume (acre-fU * 7.06 ` 79.37 80.73
• C 6 E Loss (fU * 0.01 ` Cum SA (acres) * ` ` `
Af+#i*xFx#4#1f##ITixihx4xFRi1}4t41f�4##x#iiI*t4i4f#iYiRhi#i111t#1i1ti1#i1f1fA#A11Rli#fifFA#4R1h
Warning: Divided flow computed fox this cross-section.
warning: The enezgy loss was greater than 1.0 ft (0.3 m1 . between the cuzrent and previous cross
section. This may indicate the need for addi[ional cross sections.
CROSS SECTION
RIVEA: St. Vrain River �
REACH: FULL RIVER RS: 65735
Page 59
� STVRAiN.rep
INPUT
� Description:
Station Elevation Data num= 44
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
Yi41Y4'Rie₹t�.YkAvlklkt4f;A4hfT'.1Yh4+##1Rii#kFAl41lkA'.l144*T�.lk4l4#11f4�i#f'.!liRkktf#Y4#
2097 4821.8 2122 4819 2161 4813.5 2185 4813 2200 4B11.95
2252 4811.95 2281 4816.75 2342 4816.55 2417 4815.65 2502 4815.85
2522 4817.35 2539 4816.95 2740 4816.85 2903 4816.65 2926 4812.55
2945 4812.55 29'74 4816.25 3140 4816.85 3339 4817.65 3538 4818.55
3741 4818.85 3880 4819.85 388"1 4819.�5 3892 4819.85 3912 4819.85
3949 4818.85 3964 4819.65 4112 4622.65 4173 4823.45 4229 4826.05
4243 4820.05 4251 4820.05 4275 4826.05 4321 4824.55 4359 4824.95
4502 4826.55 4556 4826.55 4756 4826.55 4956 4026.95 5156 4827.55
5229 4828.35 5246 4829.15 5253 4826.45 5264 4829.25
Manning's n Values num= 3
Sta n Val Sta n val Sta n Val
•+*.•.+....x•xxx.....t.+::.x.x...w.......+..+.wx
2097 .07 2161 .04 2281 .0"1
Bank Sta: Left RighG Lengths: Left Channel Right Coeff Contr. Erpan.
2161 2281 95 1135 1025 .1 .3
CROSS SECTION OUTPUT Profile #100 year
14+Ih'.lflfiii#t4tfFYRiM#i+#k#i4ki!£R11lf'.l1Rf'.laa###Y+₹+4ii;4f;#f1ik14'k##t44i#!!�.l;l4kflY�.lRfi#4Yf#i+
` E.G. Elev (ft) + 4820.45 * Element + Left OB * Channel * Right OB •
* Vel Head (ft) t 0.36 F Wt. n-Val. * 0.070 • 0.040 + 0.070 *
• W.S. Elev (ft) * 4820.09 * Reach Len. (ft) * 95.00 " 1735.00 * 1025.00 * �
* Crit W.S. (ft) * • Flow Area (sq ft) * 155.01 * 867.97 t 4607.39 *
* E.G. Slope Ift/ft) *0.002774 � Area (sq ft) * 155.01 * 867.97 * 4607.39 *
* Q ToGal (cfs) *16700.00 * Flow (cfs) + 372.62 * 6336.38 + 9991.01 *
* Top Wid[h (ft) * 1881.63 * Top Width fft) * 48.92 a 120.00 • 1712.90 •
• Vel Total (ft/sI * 2.9"1 * Avg. Vel. (ft/S) * 2.40 • '1.30 * 2.1"/ *
* Max Chl Dpth (fU * 8.14 ^ Hydr. Uepth (ft) * 3.18 * 7.23 • 2.69 *
* Conv. Total (cfs) *317066.6 * Conv. (cfs) • 7074.5 *120302.6 •189689.5 *
• Length Wtd. (fU * 1043.56 ' Wetted Per. (fU * 49.17 * 120.44 " 1713.74 *
* Mi� Ch E1 (ft) k 4811.95 * Shear Qb/sq ft) * 0.55 * 1.25 • 0.47 •
j * Alpha w 2.63 * Stream Power Qb/ft s) ' 1.31 * 9.11 • 1.01 •
* Frctn Loss (ft) * 2.29 ' Cum Volume (aCYe-ft) * 688.79 * 338.93 • 889.30 '
* C 6 E Loss (ft) * 0.07 * Cum SA (acres) * 221.18 * 43.14 " 277.46 *
i1F'.!lkfY'.lfrti#k4�tkfith4Y4i1#litRftR41:1!llfr�.l1:�.Fi4++Yii+4k441t#kf'.lhflYYliYk#4*!'.!l41fe'.lihli#1i4i1fY:♦
Warning: Divided flow computed for Chis cross-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . betwew the current and previous cross
section. This may indicate the need for additional cross sec[ions.
CROSS SECTION OUTPUT Profile #500 year
:::+..xx++:::::...:,,..«.:.:.:.::....xxx..........<.+::::::.,,:+..++.x..::x+.:.x..+++.+::«w....
* E.G. Elev (fU ' 4823.39 ' Element • Left OH * Chdnnel * Aight OB '
* Ve1 Head (ft) * 0.38 * Wt. n-Val. * 0.070 * 0.04� < 0.070 '
* W.S. Elev (fU + 4823.01 * Reach Len. (ft) * 95.00 * 1135.00 * 1025.00 '
* Crit W.5. (ft) • * Plow Area (sq £t) ' 328.85 * 1218.42 * 9848.89 +
* E.G. Slope (ft/f[) +0.002361 " Area (sq ft) * 328.85 * 1218.42 + 9848.89 •
t Q Total (cfs) *41960.00 * Flow (cfa) • 991.94 *10287.19 *30680.88 *
' Top Width (fU ' 2069.14 * Top Width (fU • 64.00 * 120.00 i 1885.14 R
� Vel Total (ft/s) * 3.68 * Avg. Vel. (ft/s) " 3.02 * 8.44 3 3.12 *
* Max Chl Dpih (ft) • 11.06 * Hydr. Depth (ft) * 5.14 • L0.15 * 5.22 *
* Conv. Total (cfs) *863573.6 • Conv. (cfs) * 20414.9 i211719.4 *631439.3 *
* Leng[h Wtd. �ft) • 1030.84 * Wetted Per. (ft) * 65.75 * 120.44 * 7886.96 *
' Min Ch E1 (ft� � 4811.95 * Shear (lb/sq ft) i 0 J4 * 1.49 * 0.77 *
* Alpha • 1.83 * Stream Power (lb/ft s) � 2.22 x 12.59 • 2.40 *
* Frctn Loss (ft) ' 2.56 * Cum Volume (acre-ft) � 1z91.30 * 456.40 * 1700.55 *
* C & E Loss (f[) * 0.03 * Cum SA (acres) * 254.11 * 42.99 * 371.64 •
#F#*1R*T'.l1fh##*i₹tft�.111�ii#'F1#Y4ti#F1#.i:l1:�.!'.l11:R1:k1h#41kYi#tn#*klRf'.!i#4if}4lfI�111f1ihiYi#!4#iifi#1
Warning: Divided flow computed for [his cross-section,
Warning: The cross-section end poinis had to be extended ver[ically for the computed water surface.
warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile q10 year
. iR#f*1k1*�F*ii4ii₹£M'�tif:k#!4Y##t#Filf#'.kAl1l�.lYWi##�.lR�.lf4f'.!'.Fk1fRR1i'FI�k!!�.l1#illt}#M*4ifAR1th1#1:1t1if
* E.G. Elev (ft� * 4818.39 + Element * Left OB * Channel * Right OB *
* Vel Head (ft) + 0.30 � Wt. n-Val. + 0.070 t 0.040 ' 0.070 '
Page 60
STVRAIN.rep
* W.S. Elev (ftl " 4fl18.09 " Reach Len. (fU ' 95.00 * 1135.00 * 1025.00 "
/ * Cri[ W.S. IfU • * Flow Area (sq f[) * '14.63 • 627.86 � 1673.68 t
� E.G. Slope (ft/fU �0.002528 * Area (sq E[) * 74.63 • 627.86 * 1673.68 "
• Q To[al (cfs) • 5950.00 � Flow (cfs) � 137.63 * 3525.6� "' 2286.70 �
• Top Width (fU ` 130�.39 * Top Width (fU " 32.53 * 120.00 * 1154.85 •
t Vel Total (ft/s) � 2.50 * Avg. Vel. (ft/s) * 1.84 * 5.62 i 1.37 •
� Max Chl Dpth (ftl * 6.14 * Hydr. Depth Iftl * 2.29 * 5.23 * 1.45 R
* Conv. Total (cfs) �118342.5 t Conv. (cfs) ' 2737.4 • 70123.7 * 45481.4 *
� Length Wtd. (fU * 1060.80 * Wetted Per. (ft) • 32.85 " 120.44 " 1155.52 �
* Min Ch E1 (ft) ' 4811.95 * Shear (lb/sq fU * 0.36 � 0.82 a 0.23 t
t Alpha � 3.11 * S[ream Power (lb/ft s) * 0.66 * 4.62 * 0.31 *
• Frctn Loss (ftI • 2.18 " Cum Volume (acre-fU ' 268.97 � 232.97 � 393.88 •
* C 5 E Loss (fU ` 0.06 * Cum SA (acres) * 157.77 � 41.63 " 183.34 *
......,..:.•:....,a..............:....:..........+.a..r:.r....::..:..:.:.+.x+x.w..x:...t.+.+a+.
Warning: The energy loss was grea�er than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile q50 yeaY
.:.+...:.s:.w..........x.........+.:x.x..x+.:..x+.«.......+........:.......�.+...::..:+:.«.+...
* E.G. Elev (£U ` 4819.84 * Element • Left OB * Channel � Right OB *
• Vel Head (£t) � 0.35 • WC. n-Val. • 0.070 • 0.040 • 0.070 *
* W.S. Elev (f[) • 4819.49 * Reach Len. (ft) • 95.00 ' 1135.00 ' 1025.00 *
• Crit W.S. (tU * * Flow Area (sq ft) � 127.55 * 796.43 • 3618.51 *
* E.G. Slope (ft/f[) •0.002768 * Area (sq ftl * 127.55 x 796.43 * 3618.51 *
* Q Total (cfs) *12850.00 " Plow (cfs) * 290.42 � 5483.83 � 7075.75 *
* Top Width (fU ' 1"]55.19 * Top Width (ft) • 43.40 * 120.00 * 1591."/9 •
* Vel Total (ft/s) ' 2.83 * Avg. Vel. (ft/s) + 2.28 * 6.89 � 1.96 *
" MaX Chl Dpth (ft) ' '1.54 • HydY. ➢epCh (fU '� 2.94 * 6.64 * 2.27 '
* Conv. Total (Cfs) '24424'].4 * Conv. (Cfs) ' 5520.2 *104234.3 •134492.9 *
' Length W[d. (fL) ' 1047.48 " Wet[ed Per. Ift) ' 43.81 * 120.44 ' 1592.54 •
R Min Ch E1 (fU ' 4811.95 * Shear (lb/sq fU • 0.50 " 1.14 * 0.39 *
* Alpha • 2.81 ' Stream Power (lb/ft s� a 1.15 w 7.87 * 0."7"] •
' Frctn Loss (ft) * 2.31 R Cum Volume (acre-ft) * 552.90 * 306.96 ` 728.10 *
• C & E Loss (ft) • 0.07 * Cum SA Iacres) * 170.39 * 42.91 " 210.91 *
:....::,.:,....+........,...+..,:..:::..:.:....,..:..a......ae..x..+x...+a.+......:...x...x..x.
f Warning: ➢ivided flow computed for this cross-section.
Warning: The energy loss was greater than 1.0 f[ (0.3 m) . between the curren[ and previous cross
secCion. This may indicate the need far additional cross sec[ions.
CRO55 SECTION
RIVER: SL Vrain River
REACH: FULL RIVER R5: 64600
INPUT
Description:
Station Eleva[ion Data num= 56
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
......,....«................+.+..:................+..,....��:+..:....+.+....:..«
1200 4829.3 1200.1 4829.3 1243 4826 1266 4824.6 1324 4822.6
1370 4821.3 1399 4820.2 1483 4816 1500 4810.85 7525 4810.85
1549 4810.85 1560 4811 1604 4813.95 1626 4814.05 1684 4814.55
1735 4814.95 1749 4814.85 1832 4814.15 2030 4914.65 2118 4814.55
2131 4872.85 2190 4014.35 2157 4812.25 21�1 4814.35 2232 4814.55
2432 4814.55 2584 4013.85 2614 4811.55 2628 4811.05 2698 4811.05
2720 4812.55 2�61 4814.25 2829 4814.'15 3029 4814.25 3188 4614.35
324"] 4819.55 3429 4819.25 3629 4819.55 3804 9819.95 3012 4822.95
3820 4820.05 3828 4821.25 3855 4821.25 3867 4820.45 3878 4821.45
4029 4822.45 4091 4822.25 4108 4823.55 4125 4818.85 4135 4B18.85
4157 4823.35 4231 4822.85 4430 4823.25 4631 4823.65 4739 4823.85
4768 4826.45
Manning's n Values num= 3
S[a n Va1 Sta n Val Sta n Val
+wx�««x+.++.+.«+...+...+..�«...kt.«.+r«:.....x�.
1200 .07 1483 .04 1560 .0"1
Bank S[a: Lef[ Righ[ Lengths: Left Channel Right Coeff Contr. Ezpan.
1483 1560 393.5 480 405 .1 .3
CROSS SECTION OUTPUT ProEile }l100 year
Page 61
STVRAIN.rep
+w�ari::x+Fx��w�xw.+it.rt..Rar+�ii.��xa+w+�+++.+��ai++it+,.�+x+:w.xxiw�r,rx.�ii�r���i:.:rr+ww�ra
� * E.G. Elev (ft) � 4818.09 * Element ` Left OB * Channel * Right OH •
* Vel Head (EU * 0.14 R Wt. n-Val. * 0.070 * 0.040 * 0.070
* W.S. Elev (fU * 4817.95 • Reach Len. (ft) * 393.50 • 480.Oo E 405.00 *
* Crit W.S. (tt) t t Flow Area (sq ft) • 38.05 * 502.15 i 6366.67 *
* E.G. Slope (ft/ft) +0.001785 " Area (sq ftl "' 38.05 * 502.15 * 6366.67 +
* Q To[al (cEs) '16"]00.00 • Flow (cfs) * 33.53 * 2732.5"/ *13933.91 '
* Top Width (ftl * 1784.87 + Top width (ft) • 39.01 * 77.00 * 1668.86 *
* Vel Total (ft/s) * 2.42 * Avg. Vel. (ft/s) * 0.88 • 5.44 '� 2.19 *
* Max Chl Dpth (fU + 7.10 * Hydr. Depth (fU * 0.98 • 6.52 • 3.61 +
` Conv. Total (cfs) •395317.8 • Conv. (cfs) • 793.7 * 64684.5 �329839.6 �
* Length Wtd. (ft) � 417.89 + Wetted Per. (ft) * 39.06 * 77.76 * 1669.83 *
• Min Ch E1 (ft) + 4830.85 + Shear (16/sq ft) * 0.11 � 0.72 � 0.42 *
* Alpha * 1.51 � Stream Power (lb/ft s) * 0.10 * 3.91 • 0.93 �
' Frctn Loss (fU * 0.80 * Cum Volume (acre-ft) � 688.58 * 321.08 * 760.18 *
' C � E Loss (fU * 0.00 ' Cum SA (acres) w 221.09 * 40.57 * 23�.68 +
•+:xRrttx�++�t*w�.:x.+r:rxr..�R.;x�r�wrr+�x«r.i.�:it�+xwri+�r�x��+�r,x�:r��x.w.��.xk�x�atwtxy+i��r
CROSS SECTION OOTPUT Profile q500 yeac
•++�i.w.a.:w ,�++x.x.<:rx.iFx:+err�«i+t .ra�+a:.re�ta.+x+::r..��++,u++x....��ra:x.x.t:.:�wR.
� E.G. Elev (fU � 4820.81 • Element * LeFt OB * Channel * Aight OB *
+ Vel Head (f[) ' 0.28 � Wt. n-Val. • 0.090 * 0.040 * 0.0']0 •
' W.S. Elev (ft) t 4820.53 * ReaCh Len. (ft) * 393.50 + 480.00 + 405.00 *
* Czit W.5. (f[) t ' Flow Area (sq fU * 205.39 * 700.62 *11298.41 +
* E.G Slope (ft/fU •0.002608 ' Area (sq fU � 205.39 * 700.62 *11299.41 *
* Q Total (cfs) *41960.00 * Flow (cfs) * 378.25 * 5955.30 •35826.45 *
* Top Width (ftI * 2446.60 R Top Width (ft) �' 92.65 * 77.00 * 2276.94 �
* Vel Total (ft/s) • 3.49 * Avy. Ve1. (EC/s) • 1.84 * 8.21 * 3.7"/ •
* Max Chl Dpth (f[) � 9.68 � Hydr. Depth (ft) � 2.22 • 9.10 * 4.96 *
* Conv. Total (cfs) +821598.1 * Conv. (cfs) * '7406.4 *112691.7 t701499.9 *
* Length Wtd. (£t) + 414.94 • Wet[ed Pei. (ft) * 92.'/6 * 77.96 ' 22"/8.58 �
' Min Ch E1 (ft) ` 4870.85 * Sheaz (lb/sq Et) ' 0.36 • 1.47 k 0.81 *
* Alpha • 1.A * Stream Power (16/ft s) * 0.66 * 12.05 * 2,56 *
T Fretn Loss (fL) * 1.03 ' Cum Volume (acre-ft) • 1290.72 * 431.40 ' 1451.75 '
..+.•+E:+�...(:x�+.....:.::x..�.O.,x:...[r.s•.la..«e.)x...:...++.....+9+x.....40+•..:...a::.6++.x
Warning: Divided flow computed for this cross-section.
� Warning: The energy loss was greater Lhan 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile f{10 year
+x+�++rrt�..r:i+�,xw*�.+r:+x�r���xxaw+��x..:a.+tii.+xt::�.a�t«.wrrt.����++�a.��+xxww+.i:.�rt.xr�+
* E.G. Elev (ft) + 4816.15 * Element * Left OH * Channel * Right Oe *
+ Vel Head (Et) � 0.09 "' Wt. n-Val. * 0.070 * 0.040 � 0.070 *
* W.5. Elev (ft) * 4816.06 * Reach Len. (fU * 393.50 * 480.00 * 405.00 R
• Crit W.S. (ft) * * Flow Area (sq ft) • 0.03 * 356.49 * 3230.16 *
* E.G. Slope (ft/ft) *0.001"109 • Area (sq ft) • 0.03 * 356.49 * 3230.16 •
* Q To[al (cfs) • 5950.00 * Flow (cfs) R 0.00 * 1510.84 * 4439 15 +
* Top Width (fU * 1"/25.57 * Top Width (ft) * 1.18 ' 77.00 * 1647.39 •
• Vel Total (f[/5) * 1.66 * Avg. Vel. (ft/5) * O.UB + 4.24 * 1.3"/ *
* Max Chl Dpth (fU ' 5.21 • Hydr. �epCh (fU * 0.03 • 4.63 ^ 1.96 +
* Conv. Total (cfs) *143923.8 � Conv. (cfs) * 0.1 * 36545.6 *107378.2 *
* Length Wtd. (ft) * 429.'78 * Wetted Per. (Et) • 1.18 ' 77.76 • 1648.28 �
� Min Ch E1 (ft) * 4810.85 * Sheai (lk�/sq FU * 0.00 � 0.49 + 0.21 �
* Alpha • 2.17 � Stream Power (lb/ft s) ` 0.00 * 2.07 • 0.29 +
* Frctn Loss (fU • 0."]6 * Cum Volume (a¢e-ft) * 268.89 * 220.15 * 336.19 �
* C & E Loss (ft) " 0.00 * Cum SA (acres) ' 157.73 * 39.06 * 150.37
!*R41##�.lS4iil;vlf#₹44k*kti#fµ*rt#Y4#itk*1+41*i#RA'R₹4ti�.1fklfRhiY#*kF1i#f4RY#441fYi#{{.#i+ikit##R*!4•
CAOSS SECTION OUTPUT Profile #50 year
+�.�..,+++�+e+..+x.+.......+<x++...+.++..«.r...x...::..+•++......+�.++:�.+++.+i.+.+...+«..+.+�...
* E.G. Elev (fU t 481'].47 R Element * Left OB * Channel * Ri ht OH *
* Vel Head (ft) + 0.12 * Wt. n-Val. + 0.070 * 0.040 • 0.070 *
* W.S. Elev (ft) * 481'/.35 * Reach Len. (Et) • 393.50 k 480.00 + 405.00 '
* Crit W.S. (ft) * + Flow Area (sq f[) * 18.12 "' 455.60 * 5359.93 t
* E.G. Slope (ft/ft) *0.001792 • Area (sq ft) R 18.12 * 455.60 r 5359.93 �
� Q Total (cfs) *12850.00 * Flow (cfs) * 12.50 * 2328.35 *10509.16 +
* Top width (fU * 1�65.92 • Top Width (fU • 26.92 * 77.00 * 1662.00 �
* Vel Total (ft/s) � 2.20 +� Avg. Vel. (f[/s) * 0.69 * 5.11 * 1.96 +
* Max Chl Dpth (ft) * 6.50 " Hydr. Depth (fU " 0.67 * 5.92 * 3.22 �
* Conv. Total (cfs) �303561.0 * Conv. (c£s) * y95.2 + 55003.5 ''7.48262.3 '
* Leng[h Wtd. (ft) * 419.47 • Wetted Per. (ft) * 26.96 * 77.96 t 1662.94 �
' Min Ch E1 (fU � 4810.85 � Shear (lb/sg f[) ' 0.08 � 0.66 • 0.36 *
Page 62
STVRAIN_rep
. � F Alpha * 1.62 * Stream Power (lb/£t s) * 0.05 k 3.35 * 0.71 R
* Frctn Loss (fU 0.84 * Cum Volume (acre-ft) 552 J4 290.65 622.46
r C 6 E Loss (fU * 0.00 * Cum SA (acres) * 170.31 * 40.34 * 172.63 *
4fYkffttkl�k�4tff#tt���4i#ktifR�lit+Yt1#YRkf�4411tk4f4*1#iifi{11kiF#wwXtt#kR1Y1iAfFf�hMli#Wl�tf
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 64120
INPOT
Descxiption: This is an interpolated cross-sec�ion between XS 64600 and XS
63640.
Station Elevation Data num= 96
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
klilfAxA4##itFt+��1Rf#iI1lkfhlflYRlklFlhffliht!!4Y{Ii!#11lR+fttkaii*41i1x##t1fAi
1195 4824.8 1195.07 4824.8 1195.17 4824.79 1211.5 4823.52 1225.84 4822.33
1242.39 4821.15 1252.76 4820.6 1283.95 4819.44 1316.94 4818.35 1328.60 4817.89
1337.75 4817.55 1361.69 4816.47 1398 4814.5 1416.5 4810.2 1442.78 4810.2
1468 4010.2 1480.5 4811.48 1516.5 4812.73 1521.12 4812.77 152�.4 4812.62
1541.43 4813 1541.58 4813 1594.97 4813.89 1596.12 4813.9 1621.21 4814.51
1642.05 4814.56 1654.98 4814.48 1672.48 4814.37 1731.6 4814.1 1781.56 4814.17
1839.19 4813.49 1888.46 4813.51 1914.39 4813.5� 1995.62 4813.57 2007.62 4812.73
2015.93 4813.49 2�31.63 4812.45 2044.55 4813.51 2100.86 4813.65 2105.52 4813.65
2200.42 4813.55 2285.5 4813.62 2322.59 4813.56 2425.82 4813.14 2453.51 4811.94
2466.44 4811.67 2531.06 4811.57 2542.93 4811.99 2551.37 4812.32 2589.22 4613.28
2631.29 4813.57 2649.83 4812.99 2651.99 4813 2670.55 4812.97 2689.1 4813.55
2763.27 4813.35 2836.62 4813.25 2919.25 4813.28 2944.34 4812.19 2967.25 4812.19
29�8.16 4812.2 2983.41 4812.37 3015.24 4814.92 3037.87 4816 3198.5 4815.86
3205.89 4815.52 3232.31 4814.37 3280.31 4815.77 3390.52 4816.12 3417.�5 4816.23
3552.07 481C.71 3559.46 4877.98 3566.84 4816.79 3574.23 4817.41 3599.15 4817.49
3610.23 481�.09 3620.39 4817.62 3634.81 4817.� 3727.53 4819.23 3759.78 4819.53
3817.02 4819.76 3832.71 4820.5 3848.41 4818.24 3850.79 4818.25 3857.64 481B.26
3897.95 4820.54 3946.26 4820.38 4066.�7 4820.68 4129.97 4820.75 4289.29 4820.92
4315.53 4821 43�3.28 4821.16 4409.28 4823.19 4415.23 4823.26 4423.46 4823.75
9 4442 4824.65
Manning'S n Values num= 3
Sta n Val Sta n Val Sta n Val
•tii*ffiYF++�+#ti₹kixlkYxil4xfR+alifiAxi42+t44#f
1195 .0� 1398 .04 1480.5 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
1398 1480.5 393.5 480 405 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Peimanent
3152 4442 4817.5 F
CROSS SECTION OUTPUT Profile #100 yeaz
4##1f*##xxYiitti#iAk+iR##i*4Yf**i4<i41Rii11#iY1x144If##Yfl�lftllR�flltlWAARi1f1*#1�Fi#Yiflif#fi
* E.G. Elev (ftl * 4817.26 • Element K Left oB ; Channel ; Right oB ;
* Vel Nead (ft) * 0.16 • Wt. n-Val. • 0.070 ` 0.040 * 0.070 *
* W.S. Elev (fU * 4877.12 * Reach Len. (ft) * 393.50 R 480.00 405.00 *
* Crit W.S. (ft) ^ 4815.32 * £low Area (sq ft) ; 64.25 * 523.44 ' 6001.98 *
• E.G. Slope (ft/ft) *0.002075 * Area Isq £t) 64.25 523.44 * 6476.50 *
* Q Total (cfs) •16700.00 * Flow (cfsl } 72.58 � 3021.83 *13605.60 *
* Top Widih (ft) * 2214.99 ' Top width (ft) * 50.81 ; 82.50 M 2081.68
k 2.53 * Av Vel. (Et/sl 1.13 5.77 2.2� `
* Vel Total Ift/sl g� w , +
* Max Chl �p[h Ift) * 6.92 * Hydr. Depth (ft) * 1.26 6.34 ; 3.59 k
� Conv. Total (cfs) �366643.0 * Conv. (cfs) 1593.4 * 66343.2 *298706.4 *
� Len9th Wtd. (ft) * 418.37 * Wetted Per. lft) r 50.88 * 83.06 * 1671.92 *
* Min Ch E1 (ft) * 4810.20 * Shear (lb/sq ft) * 0.16 0.82 * 0.46 *
* Alpha * 1.59 ' Stieam Power (lb/ft s) ; 0.78 * 4.71 ; 1.a5 *
* Frctn Loss (ft) * 0.64 * Cum Volume (acre-ft1 688.12 k 315.43 7��.48 *
C & E Loss (f[) * 0.01 * Cum SA (acresl * 220.68 � 39.69 * 220.24
•xM**k1fF#ix1#Ff4i+lixk#if#FS/#ikkf�l*4iiiiltt#f1t#1+x1₹fRA#4t1if1*if14i1F411Rif*!!Y#k##*iR4YtF
Warninq: �ivided flow computed for [his cross-section.
Note: Multiple ccitical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
� CAOSS SECTTON OUTPUT Profile #500 year
Page 63
STVRAIN.rep
kn*iX*iRif#i+4fYlif#F�lAlikkitR4i114i4Wi*k#F4tt*#RfAklflkxkt4�#4MfR4kfA1#*iYiii#f1FR+YniFx+Ik+#
' * E.G. Elev (£t) * 4819.77 • Element * Left OB ' Channel * Right OB k
* Vel Head (ft) * 0.24 R Wt. n-Val. * 0.070 * 0.040 * 0.070 t
� W.S. Elev (fU * 4819.53 * Aeach Len. (ft) * 393.50 R 480.00 * 405.00 *
' Crit W.S. (fU t 4816.76 k Flow Area (sq fU * 260.63 * 721.52 *11751.67 R
" E.G. Slope (ft/ft) •0.002353 * Area (sq ft) * 260.63 * �21.52 *11751.67 *
" Q Total (cfs) *41960.00 * Flow (cfs) � 459.78 * 5493.94 R36006.88 i
" Top Width (fU + 2507.01 * Top Width (ft) * 116.33 * B2.50 i 2308.18 *
" Vel Total (f[/s) • 3.30 • Avg. Vel. (ft/s7 * 1.76 * 7.61 * 3.06 t
* Max Chl Dpth (fU * 9.32 * Hydi. Depth (ft) � 2.24 * 8.75 ' 5.09 3
* Conv. Total (cfs) t865049.5 * Conv. (cfs) + 9466.5 *113263.4 t742319.6 *
• Length Wtd. (ft) * 414.58 ' Wetted Per. (ft) • 116.45 * 83.06 " 2309.08 •
* Min Ch E1 (£t) * 4810.20 ' Shear (lb/sq fU * 0.33 � 1.28 + 0.75 w
* Alpha � 1.44 t Stream Power (lb/Et s) * O.SB * 9.72 R 2.29 *
* Frctn Loss (ft) * 0.95 • Cum Volume (acze-Et) * 1288.62 ' 423.5� ' 1344.59 *
* C & E Loss (f[) � 0.02 * Cum SA (acres) • 253.00 * 39.54 t 301.36 •
*�....+........+,....+..++.x.........+x::x+x.+.+.:w::wx....+.:.....++.x...+...��tx+.+«.....x.x+
Warning: �ivided flow computed for this cross-section.
Note: Multiple cri[ical depths were found at [his location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #10 year
...++.�:�,:::.+�..::.rrwx.��:Rxra.R�+�a+i+:��:.xwx:r+*+�wx��+�r��:w�xr�a«:wxxx.+++*+���t.ixxka
* E.G. Elev (fU � 4815.39 * Element rt Left OB * Channel * Right OB +
` Vel Head (ft) * 0.10 * Wt. n-Val. * 0.070 w 0.040 * 0.070 �
* W.S. Elev (ft) * 4815.28 * Reach Len. (ft) * 393.50 * 480.00 * 405.00 *
* Crit W.S. (fU * 4814.40 * Flow Area (sq ft) * 5.62 * 371.42 * 3003.55 *
� E.G. Slope (ft/fU *0.001888 * Area (sq fU t 5.62 • 3�1.42 * 3027.95 *
* Q Total (cfs) * 5950.00 " Plow (cfs) * 2.7� t 1627.36 * 4319.8� *
• Top Width (ft) � 1692.78 * Top Width (fU * 14.40 r B2.50 * 1595.89 3
* Vel Total (ft/s1 * 1.76 R Avg. Vel. (ft/s1 * 0.49 * 4.38 * 1.44 *
x Max Chl Dp[h (ft) * 5.08 ' Hydr. Depth (ft) � Q.;g * q.50 • 1.95 •
* Conv. Tota1 (cfs) *136923.3 ' Conv. (cfs) • 63.� * 37449.4 • 99410.2 *
r Length Wtd. (fU * 428.84 < Wet[ed Per. (f[) • 14.42 * 83.06 * 1542.71 *
1 * Min Ch E1 (ft) } 4810.20 * Shear (lb/sq fU * 0.05 * 0.53 ` 0.23 *
. " Alpha 2.18 ' Stream Power (lb/ft s) 0.02 2.31 0.33
" Frctn Loss (ft) * 1.40 * Cum Volume (acre-ft) � 268.87 � 216.14 + 307.09 *
* C & E Loss (£t) * 0.0� * Cum SA (acres) w 157.66 • 38.18 • 135.29 *
4�tfrt#YxFtYffi#Mk#44444f}*kk*#*f##Miikxfk+##{444#f4tFW+iii?lxxhnii+it}hYMtffFf1T1i1MYi#lk11V++t
warning: Divided £low computed for this cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyancel is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for addi[ional cross sections.
Note: Multiple critical depihs were fossnd at this location. The critical depth with the lowest,
valid,
watez surface was used.
CAOSS SECTION OUTPUT Profile #50 year
xw.i*:r:::..:�x.ta:rxx+rt+e++��.�w.x«+ra«+t:r�:x��wt�ttt..+rt*t��.��.�:.:i�+++::rxrrxt�t:.Rx�r�.
t E.G. Elev (ft) * 4816.62 * Element • Left OB • Channel * Right OB *
� Vel Head (fU * 0.15 * Wt. n-Val. < 0.070 * 0.040 * 0.070 *
' W.S. Elev (ft) * 4816.47 � Reach Len. (ft) t 393.50 * 480.00 * 405.00 �
* Crit W.5. (ft) * 4B15.06 • Flow Azea (sq ft) � 35.68 • 469.30 * 4905.06 *
t E.G. Slope (ft/ft) +0.002275 + Area (sq ft) * 35.68 * 469.30 " 5123.70 *
* Q Total (cfs) *12850.00 * Flow (cfs) • 35 JO * 2637.63 *10176.67 K
* Top Width (fU * 2122.56 * Top Width (ft) + 36.27 * 82.50 * 2003.80 *
* Vel Tatal (ft/s) * 2.38 * Avg. Vel. (ft/s) • 1.00 * 5.62 � 2.07 *
• Max Chl Dpth (ft) * 6.27 � Hydr. Dep[h (ft) * 0.98 * 5.69 * 2.93 *
* Conv. Total (cfs) *269437.6 " Conv. (cts) R �48.5 * 55305.6 *213383.5 •
* Length Wtd. (ft) * 420.27 * Wetted Per. (ft) * 36.32 * 83.06 • 1671.92 *
* Min Ch E1 (fU * 4810.20 " Shear (lb/sq ft) * 0.14 * 0.80 • 0.42 •
* Alpha * 1.75 * Stream Power (lb/ft s) * 0.14 * 4.51 • 0.86 *
� Frctn Loss (ft) � 0.98 • Cum Volume (acre-ft� * 552.50 + 285.56 k 573.73 *
R C & E Loss (fU * 0.00 � Cvm SA (acres) * 170.03 * 39.46 * 155.58 *
..+.+x+.....:::..x:...+x:xxx+++.+x..+x..:....++�w:..+..x..:.+..x+.�.....+++.x..i.++.a�:xx.�ax+x
Note: Multiple critical depths were found at this location. The critical dep[h with the lowest,
valid,
��.. water surface was used.
Page 64
STVRAIN.rep �
CROSS SECTION
RIVER: St. VYairt RiveY
REACH: FULL RIVEA RS: 63640
INPUT
Description: �
Station Eleva[ion Data num= 46
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.x«.:............:+..x:....:+....+..:.....+xx��.+.....».x......x.+..»::++.w:.:..
1190 4820.3 1190.1 4820.3 1200 4819.5 1225 481�.1 1271 4815.1
1291 4814.4 1313 4813 1333 4B09.55 1387 4809.55 1401 4811.95
1434 4811.85 1444 4811.25 1457 4811.95 150� 4813.25 1530 4814.25
15�� 4814.05 1677 4814.05 1728 4812.55 1775 4812.45 1974 4812.�5
2061 4812.55 2173 4812.75 2375 4812.05 2456 4812.55 24�3 4811.25
249Z 4811.25 2509 9812.45 2577 4812.25 2720 4612.25 2743 4830.05
2�64 4810.05 2774 4610.05 2808 4812.45 2976 4672.45 300� 4809.45
3051 4812.05 3179 4812.85 3376 4813.85 3461 4816.25 3574 4817.65 �
3772 4818.25 3976 4818.25 4053 4818.55 4086 4822.55 4099 4822.85
4116 4822.85
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
.:.+.:....:...+:..«....«+......+.+..:+.,+.:...+.
1190 .0� 1313 .04 1401 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
1313 1401 490 462.5 415 .3 .5
Ineffective £low num= 1
Sta L Sta R Elev Permanent
2992 4116 4877.5 F
CROSS SECTION OUTPUT Profile N100 yeai
♦4f!*kR}4�Y#44wik+ixxY#xfFYlfiht#4h1MliYY#fk+i4�R�iFfRt#1R�tYik4Rti#iixtt#Yw1t+4i
•+E*GttElev*(ft) ' 4816.44 " Element • Left OB ; Channel i Right OB * �
+ Ve1 Head (ft) * 0.15 * Wt. n-Val. * 0.090 0.040 0.070
f + 4816.29 ' Reach Len. (ft) * 490.00 * 462.50 * 415.00 '
� * W.S. Elev (ft) R .
' Crit W.S. (ft) ' 4814.45 + Flow Area (sq fU * 104.03 * 541.79 ' 6011.79 *
* E.G. Slope (ft/fU *0.001934 * Area (sq ft) * 104.�3 541.79 • 7527.39 *
* Q To[al (cfs� *16700.00 * Flow (cfs) 127.14 4 2961 J6 •13611.10 *
� * Top Width (ft) ` 2220.55 * Top Width (ft) { 69.36 ; B6.00 * 2063.19 4
* Vel Total (ft/S) � 2.51 * Avg. Vel. (ft/5) 1.22 5.4� ; 2.26 ;
* max Chl Opth (ft) * 6.84 * Hydr. �epth (ft) ; 1.50 ' 6.16 3.78 *
* Conv. Total (cfs) *379777.8 * Conv. (cfs) 2091.4 � 67353.9 R309532.4 e
* Length wtd. (ft) * 422.74 R Wetted Per. (ft) * 69.44 * 88.50 * 7591.46 *
* Min Ch E1 IfU ` 4809.55 • Shear (lb/sq ft) • 0.18 0.74 �.46 R
* Alpha * 1.51 • Stream Power (lb/fC s) * 0.22 * 4.04 * 1.03
0.54 * Cum Volume (acre-fU * 687.35 3�9.57 635.41 k
� Frctn Loss (ft) * r � , ,
` C & E Loss (fU * 0.04 ' Cum SA (aczes) 220.14 38.75 200.97
4*#i�if�+tF�fi#14�i411i1�Rk4x*+ff*kR�4#lk+tt##+1x#YfRil111IY#1£#11If#+!lfiiYl<441xi4ixih1tfR4#F
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The cross section had to be extended vertically during the critical depth calculations.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used. �
CROSS SECTION 0UTPUT Profile p500 year
R4lf41TR4ixfiY#*#4#F##Rk₹₹F###x4#it+iflFlFWhRtikt�l##fh+#�f#tYRf4i41ki1�xfiilxi#ifx#RYtRtfi#}ki
* E.G. Elev (fU ' 4818.81 3 Element � Left OH * Channel * Right OH �
* Vel Head (fU 0.21 � Wt. n-Val. 0.07o T 0.040 0.070 *
* W.S. Elev (ft) * 4818.59 • Reach Len. (ft� � 490.00 * 462.50 * 415.Q0
* 4815.75 * Flow Area (sq ft) 310.77 744.48 "12663.67 *
* Ctit W.S. (ft) � * 310.77 * 744.48 `12663.67 `
t E.G. Slope (ft/fU "0.002222 Area (sq ft) . 646.24 ' 5391.96 *35921.80 *
R Q Total (cts) *41960.00 * Flow (cfs) y �
+ Top Width (fU ` 2843.90 * Top Width (ft) « 103.55 + 88.00 * �652.35 4
* Vel Total (ft/s) � 3.06 * Avg. Vel. (ft/s) 2.08 ; 7.24 i 2.84 `
• Max Chl Dpth (ft) ; 9.14 � Hydr. Depth (ft) 3.00 8�46 4���
« *890186.7 i Conv. (cfs) * 13710.1 *114391.1 R762085 A *
Conv. Total (cfs) • 103.72 • 88.50 * 2653.01
+ Length Wtd. (ft) ' 420.37 * Wetted PeI. (ft) r
� * Min Ch E1 (fU * 4809.55 ' Shear Qb/sq ft) « p,qy k 7.17 * 0.66
* Alpha '
1.46 * Stream Power (16/ft s) ' 0.86 8.45 1.88 *
Page 65
STVRAIN.rep
, • FrCtn Loss (ft) � 0.41 ' Cum Volume (aCre-£t) * 1286.04 * 415.49 * 1231.09 *
' ` C S E Loss (ft) * 0.07 • Cum SA (acres) * 252.00 * 38.60 ' 278.30 "
i4ii*fY+4ilttRi+µ4k4vl1tii+F+fffh+4+41tt+£}fRltl4##ir4i!#k##1'R#MiYRvft1#lflflAfR1'.lITiA1#f:Yf1kl44
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater trian 1.4. This may indicate the need for additional cross sections.
warning: The cross section had to be extended vertically during the critical depth calculations.
Note: Multiple critical depths were found a[ [his location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OOTPUT Profile N10 year
i..s,,...��F,.:t,.::�.�Kx.ax.+a�i��xcr+r«i.airai+xwxr.i+r��+r,+�+�ia.xrrrya�w«�«a�r�w�r.+siax++�x+•
* E.G. Elev (ft) + 4613.93 " Element * Left OB * Channel * Right 06 �
• Vel Head (ft) ' 0.32 * Wt. n-Val. • 0.070 * 0.040 ' 0.070 •
' W.5. Elev (ft) * 4813.60 ' Reach Len. (ft) ^ 490.00 * 462.50 • 415.00 '
* Crit W.S. (ft) ' 4872.25 "' Flow Area (sq ft) * 2.86 � 305.38 * 1816.12 *
' E.G. Slope (ft/ft) �0.006929 * Area (sq ft) ^ 2.86 * 305.38 * 2194.'/5 *
* Q Total Icfsl r 5950.00 + Flow (cfs) * 2.27 " 2156.24 ^ 3791.50 *
* Top Width (Et) R 1846.24 • Top Width (ft) ' 9.48 * 88.00 ' ll48.76 "�
* Vel Total (ft/s) � 2.80 ' Avg. Vel. (ft/s) * 0 J9 ' 7.06 ' 2.09 *
* Max Chl Dp[h If[) • 4.15 ' Hydr. Depth (ft) * 0.30 * 3.47 k 1.28 •
* Conv. To[al (cfs) * 71981.4 R Conv. (cfs) * 27.2 * 259o4.3 ' 45549.8 •
' Length Wtd. (fU � 427.28 * Wetted Per. (ft) * 9.50 * 88.50 * 1414.37 �
• Min Ch E1 (fU " 4809.55 * Shear (lb/sq ft) * 0.13 * 1.49 * 0.56 *
' Alpha * 2.66 ' Stream Powez (lb/ft s) * 0.10 * 10.54 * 1.16 *
• Frctn Loss (f[) ' 0.77 * Cum Volume (acre-ft) • 268.83 • 212.41 ` 282.82 *
* C & E Loss (ft) ' 0.14 * Cum SA (acres) '� 157.55 * 37.24 * 119.74 �
�:t:F.a...x.+.x..xw.��.�«r.�x�x�x�r:,rix��x.tie+rxwxr:.+.�frx�.r.�wrrxr�wR.r,.�xw»r�.���xr+>+xi++t+�
Warning: Divided flow computed for this czoss-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
o.� or grea[er than l.a. This may indicate the need for additional cross sections.
Note: Multiple cri[ical depths were found at this location. The critical depih with the lowest,
vali3,
watez surface was used.
� CROSS SECTION OOTPUT Profile #50 year
a:..:.:.w....:�.�..x::+.t:FFt�r�.�.Ft..+rrxax�.r+r+�xxi�W�t++���ra�+ii+rieF�++tii��+:ta+::+x�x+
' E.G. Elev (fU * 4815.65 * Element + Left OB * Channel + Right OH *
* Vel Head (ft) * 0.15 * Wt. n-Val. * 0.070 * 0.040 * 0.070 *
* w.5. Elev (ft) * 4815.49 * Reach Len. (ft) * 490.00 * 962.50 • 415.00 •
* Crit W.5. (ft) ' 4814.05 * Flow Area (sq ft) ` 56.14 ' 471.80 ' 4"]46.29 •
' E.G. Slope (Et/ft) �0.002398 * Area (sq fU * 56.14 * 471.80 ' 5892.90 '
* Q Total (cfs) *12850.00 * £low (cfs) ' 61.B5 * 2608.26 '10179.88 *
� Top widih (ft) • 2172.29 ' Top Width (ft) * 57.06 * 88.00 * 2033.23 •
R Vel Total (ft/s) * 2.44 * Avg. Vel. (ft/s) * 1.10 +� 5.53 * 2.14 *
* Max Chl Dpth (ft) * 6.�4 " Hydr. Depth (ft) * 1.10 ' 5.36 * 2.98 *
* Conv. Tota1 (cEs) *263502.1 * Conv. (cfs) R 1268.9 � 53485.1 *208"/48 J �
* Length Wtd. (f[) * 423.49 ' WeL[ed Per. (ft) ` 51.13 ' 88.50 • 1591.46 '
* Min Ch E1 (ft) * 4809.55 * Shear (16/sq ft) * 0.16 � 0.'19 " 0.44 *
* Alpha • 1.66 * Stream Power (16/ft s) * 0.18 * 4.38 * 0.95 *
` Frctn Loss (fU ' 0.61 * Cum Volume (aCYe-ft) ' 552.08 ' 280.37 * 522.51 *
* C & E Loss (£U * 0.04 * Cum SA (acres) * 169.63 * 38.52 * 136.82 *
*<:xx..:x:.�w..t���wi�r.�+t++���ta++�«++i+tr*tta++Fwr�++x�i�.x+:��tt:..�rxxr•rxxr�r:x�rirr.i�r+•
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0."1 or greater than 7.4. This may indicate the need for additional Cross seCtions.
warning: The cross section had to be extended vertically during the critical depth calculations.
Note: Multiple critical depths were found at this location. The cri[ical depth with [he lowest,
valid,
water surface was used.
CROSS SECTZON
RIVER: St. Vrain River
REACH: FULL RIVER RS: 63177.5
INPUT
�escrip[ion: This is an interpolated cross-section between XS 63640 and XS
62715.
. Station Elevation �ata num= 86
S[a Elev Sta Elev Sta Elev Sta Elev Sta Elev
Page 66
STVRAIN.rep
f111l�RRiY441k#4Y4�fkYli+Wfli4fif11Rxf11YffAflk+tf#fY4f14WY4#4;44i1i1f�f1ftt4R#♦
- 1158 4828.65 7158.14 4826.64 llll.� 4827.64 1205.95 4824.92 1236 J4 4823.06
1268.96 4820.37 1296.36 4818.17 1310.75 4816.87 1326.5 4815.13 1348.5 4807.67
1375.5 480�.6� 1405.43 4809.45 1418 4812.12 1452.59 4812.44 1461.6 4812.42
1474.81 4812.12 1491.99 4812.48 1558.04 4813.12 1588.43 4813.62 1650.53 4813.52
1689.9 4813.52 1782.65 4813.25 1850.03 4812.3 1912.12 4812.07 2026.96 4811.79
2156.48 4813.86 2175.04 4813.53 2223.24 4812.58 2280.36 4907.28 2289.9B 4807.27
2437.95 4807.38 2547.43 4807.23 2596.51 4812.42 2613.4 4812.89 2637.53 4809.66
2687.41 4808.55 269�.06 9808.46 2707.08 4808.46 2704.83 4808.4� 271�.17 4808.58
2735.67 4809.57 2753.3� 4911.14 2796.81 4815.49 2811.84 4814.49 2834.3 4812.29
2859.41 4810.55 2881.8� 4809.fi 2663.69 4809.47 2952.07 4808.9 2964.13 4808.88
2971.�1 4808.88 3006.77 4808.88 3160.63 4808.88 3165.24 4808.71 3191.02 4807.77
3218.77 4807.77 3231.98 4807.77 3296.9 4808.98 3326.94 4808.9B 3498.86 4808.98
3539.81 4807.48 3597.94 4808.77 3764.47 4B09.17 3935.9 4809.5 3989.8 4B17.6
4027.33 4817.32 4042.69 4817.34 4075.07 4816.83 4139.63 4818.17 4211.02 4819.21
4280.92 4819.11 4291.46 4819.1 4322.03 4820.09 4332.49 4817.6 4341.34 4817.61
4357.43 4820.18 4452.35 4820.64 4550.51 4820.75 4612.43 4820.75 4774.93 4820.25
4820.04 4820.26 4921.�7 4020.45 4935.82 4821.09 4965.36 4822.49 4982.54 4822.6�
5005 4822.7
Manning's n Values num= 3
Sta n Val Sta n Val Sta n val �
++xx++xx.x+x..x..:r.w..::..x..:...:......w.+:.x.
1158 .07 1326.5 .04 141H .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
1326.5 1418 490 462.5 415 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
30�9 5005 4817.5 F
CROSS SECTION OUTPUT Profile p100 year
kYiYiYlflkittitf4tfif+flkli#1F�ilf�kkY4i###YI#4Yy+ft�t4�itR}i#tW1111rRflltxfxttY£tfttf�i44t44#i
' E.G. Elev (£U ' 4815.86 ' Element • LeEt OB ` Channel * Right OH •
' Vel Head (ft) " 0.08 * Wt. n-Val. * 0.070 ` 0.040 * 0.070 *
' W.S. Elev (ft) * 4615.79 * Reach Len. (fU * 490.00 ' 462.50 ' 415.00 *
' Crit w.S. (fU * 4811.01 * Flow Area (sq ft) * 7.96 � 595.00 ' �969.85 �
;� * E.G. Slope (ft/£t) `O.OOOB98 • Area (sq ft) * 1.96 ' 595.00 '14061.75 *
• Q Total (cfs) '16700.00 ' Flow (Cfs) * 0.59 ' 2282.04 "1441�.37 *
" Top Width (fU � 265�.21 ' Top width (ft) * 5.96 ' 91.50 * 2559.�5 '
* Vel Total (ft/s) " 1.95 * Av9. Vel. (ft/s) • 0.30 * 3.84 * 1.81 =
• Max Chl Dpth (St) • 8.56 ' Hydr. Depth (ft) � 0.33 ' 6.50 t 4.80 �
• Conv. Total (cfs) *557185.9 ' Conv. (cfs) * 19.8 ' 76138.8 `481029.3 `
` Length Wtd. (ft) ' 422.10 * Wetted Per. (fU • 6.00 * 93.06 • 7662.33 *
' Min Ch E1 (ft) ` 480�.67 • Shear (lb/sq ft) * 0.02 * 0.36 • 0.27 *
• Alpha ` 1.27 * Stream Power (lb/ft s) • 0.01 • 1.38 * 0.49 *
• Frctn Loss (ft) * �.40 • Cum Volume (acre-fU ' 686.�6 ' 303.53 * 532.59 *
' C 6 E Loss (ft) t 0.00 ' Cum SA lacres) ' 219.71 ' 37.80 ' 178.95 *
111ffIRRTf�xRFAt#}tt4RSffMkxi�RtttFflflft4k141Ytf1Ff4Ra£41Y1f114#R#4iRi4441i1f1iWlx11xF4Y�t�ifi
Note: Multiple critical depths were found at this loca[ion. The critical depth with the lowest,
valid,
water sur£ace was used.
CROSS SECTION OUTPUT Profile #500 year
i4l�4lRif>#fi1#4fi11RRAR�iftYffi4xxl�#4fxfix�ItY#kt44fl1k*i₹iilllFflkkitfi444itMMYWx1tt£F41fi4+ii
• E.G. Elev (fU ' 4818.33 ' Element ' Left OB * Channel ' Right OB *
* Vel Head (ft) • 0.07 • wt. n-val. � 0.070 * 0.040 ^ 0.070 +
' W.S. Elev (fU • 4818.26 * Reach Len. (fU • 490.00 • 462.50 ' 415.00 "
* Crit W.S. (ft) " 4813.46 � Flow Area (sq ft) ' 46.24 • 820.98 �20541.87 >
' E.G. Slope (ft/ft) "0.000540 ' Area (sq f[) * 46.24 * 820.98 R20541.87 *
* Q To[al (cfs) *41960.00 * Flow (cfs) ' 29.54 � 3026.86 `38903.60 *
� Top Width (ft) * 2866.11 ` Top Width (ft) • 31.24 ' 91.50 � 2743.37 *
+ Vel Total (ft/s) " 1.96 t Avg. Vel. (ft/s) * 0.64 ' 3.69 * 1.89 *
* Max Chl Dpth (ft) * 11.03 * Hydr. Depth (ft) * 1.48 ' 8.97 • 7.49 •
* Conv. To[al (cfs) *1804994.0 ' Conv. (cfs) ' 1270.6 *130206.6 "1673517.0 '
* Length Wtd. (f[) ' 418.20 * Wetted Per. (£U * 31.40 � 93.06 • 2745.53 *
' Min Ch E1 (fU ` 4807.67 • Shear (lb/sq ft) * 0.05 * 0.30 * 0.25 '
" Alpha • 1.12 ' Stream Power Qb/ft s) ' 0.03 ' 1.10 + 0.48 a
" Prctn Loss (ft) ` 0.1� * Cum Volume (acre-ft) ' 1284.03 ' 407.18 * 1072.91 a
• C 4 E Loss (ft) * 0.01 � Cum SA (acres) * 251.25 " 37.65 * 252.60 •
wt+++.R.�.�:�.t�+�r��r..++t+++�+�+�ixxi:�++Fw+�+x�xirxy��x�rkw+R�+;k++tx.r:��.ia��+t��t�tr�ri�r
warning: Divided flow computed for [his cross-section.
Page 67
STVRAIN.rep -
Note: Multiple critical depths were found at this location. The critical depth with the lowest�,
valid,
� water surface was used.
CROSS SECTION OUTPUT Profile p10 year
...x.aw...+t..x:xw.a...+�...+.....+,..�..•....�.+«.at...x.....�+.+.�.w.x•.t..+.+x...x+x.x.+.+:+
* E.G. Elev (fU x 4813.02 � Elemen[ * Left OH * Channel " Righ[ OB *
* Vel Head (fU * 0.04 ' Wt. n-Val. • � 0.040 � 0.070 •
* W.S. Elev (ft) * aB12.97 * Reach Len. (fU * 490.00 * 462.50 * 415.00 *
� Crit W.S. (ft) ' 4809.56 � Flow Asea (sq ft) • * 344.16 � 3524.46 �
t E.G. Slope (ft/fU "0.000813 • Area (sq fU * * 344.16 � 7111.52 *
' Q Total (cfs) � 5950.00 * Flow (c£s) * ' 916.40 * 5033.60 *
� Top Width (ft) * 2208.48 t Top width (ft) R * 85.14 * 2123.35 a
* Vel Total (ft/s) � 1.54 � Avg. Vel. (ft/s) < * 2.66 � 1.43 *
• Max Chl Dpth (fU " 5.�4 • Nydr. Depth (ft) * • q.pq * Z,g3 R
+ Conv. Total (cfs) R208679.2 ` Conv. (cfs) � + 32140.1 •176539.1 *
' Length Wtd. (ft) • 422.95 * wetted Per. (ft) ' * 86.34 * 1244.41 *
* Min Ch E1 (ft) ' 4807.67 R Shear (lb/sq ft) * * 0.20 * 0.14 '
* A1pha � 1.19 � S[ream POwei 11b/ft s) * + 0.54 � 0.21 •
* Frctn Loss (f[) * 0.31 * Cum Volume (acre-ft) • 268.81 x 208.96 * 238.48 *
* C & E Loss (ft) * 0.00 * Cum SA (acres) • 15�.50 * 36.32 ` 101.30 *
xx.xt++att��wxxw+r.xw�++a++«�+i.+:s:tw::x:+kx��yx+�tr�t�Fx<+�xxw.�+�a+trat��x+��r�w+i�rr»���ar
Warning: Divided flow computed foz [his cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT ProEile #50 year
iRT#+WW*ifi[41i4f;fti�Rxf�xk#*i**k%i*�++ki#ii4Yt4i;wkhM+W#S*i�l441t*xFFxN+k#Yi#k11f#4#tf}xxx4Mi
+ E.G Elev (fU ' 4814.99 * Element • Lett Oe * Channel * Right OB *
F Vel Read (ft) * 0.0� • Wt. n-Val. < * 0.040 � 0.070 •
i W.S. Elev (ft) * 4814.92 * Reach Len. (ft) * 490.00 * 462.50 * 415.00 *
* Crit W.S. (ft) • 4810.56 * Flow Area (sq fU " * A5.76 • 6534.31 "
* E.G. Slope (ft/ft) *0.0009�8 * Area (sq ft) t * 515.76 *11849.76 x
* Q Total (cfs) *12850.00 * Flow (cfs) * * 1885.05 *10964.95 *
' Top Width (ft) + 2630.65 ' Top Width (ft) * * 90.89 ' 2539.76 *
. � Vel To[al (ft/5) ' 1.82 * Avg. Vel. (ft/5) * * 3.65 ' 1.68 *
* Max Chl Dpth (ft) * �.69 * Hydr. Depth (ft) t * 5.67 * 3.97 •
• Conv. Total (cfs) •410923.2 * Conv. (cfs) + R 60281.0 '350642.2 *
- ' Length Wtd. (ft) • 422.33 + Wetted PeY. (ftl * • 92.42 * 1648.06 *
� Min Ch E1 (ft) • 4807.67 * Shear (lb/sq ft) * * 0.34 w 0.24 +
' Alpha 3 1.31 * Stream Power Qb/ft s) * • 1.25 * 0.41 �
' Frctn Loss (fU ' 0.39 * Cum Volume (acYe-ft) ' 551.�7 * 275.13 R 438.00 *
' C � E Loss (fU ' 0.00 * Cum SA (acres) * 169.34 * 37.5� * 115.03 "
it##1fhTirt+i*1+Y44{+4+t*#ltYfFi###k1}#Y+k##iiYik4i4x#flxAhhf4f*%4irf+ttf�;Ma#iililtif#lkfk%flki
Warning: Divided flow computed £or this cross-section.
Note: Multiple critical depths were tound at [his location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vzain River
REACH: FULL RIVER R5: 62�15
INPUT
Description: This czoss-section assumed the. 'main channel 6ank stations' were
located at the first (upstream) intersection with the river. The
channel downstream reach length was then assumed to follow the
dog-leg portion oF the river, whereas the left and right overbank
lengths were just the distance to the next cross-section over-land.
Station Elevation Data num= 45
Sta EleV Sta EleV Sta EleV Std Elev Sta Elev
.:.:.:.+.++.+.++...+w..++......x+..::k.:�«...++.+..+n..i+*i�,..:+«x.x+x+�:F:.++.�
1126 4837 1226 4830 1320 4820 1340 4817.27 1364 4805.8
1414 4807.65 1435 4812.3 1478 4813 1773 4813 2192 4811
2353 4815 2436 4812.5 250"1 9802 2839 4802 2900 4812.5
2921 4813.5 2951 4807.5 3013 4805 3025 4804.65 3030 4804.85
3050 4805.05 3073 4806.95 3095 4810 3149 4818.5 3257 4806.5
3342 4805.5 3357 4805.5 3410 4805.5 3607 4805.5 3808 4805.5
4565 4805.5 4632 4821.5 4698 4820.5 4738 4818.8 490'/ 4821.5
Page 68
STVRAIN.rep
5007 4820.55 5045 4822.45 5058 4817.45 5069 4877.45 SOB9 4822.55
� 5207 4823.25 5406 4823.25 5608 4822.25 SBOB 4822.35 5899 4822.55
Manning's n Values num= 3 .
Sta n Val Sta n Val Sta n Val
..++.:.:::...x..+....+..+.++.w..w:.....+.•r....�
1126 .0"] 1340 .04 1435 .07
Bank Sta: Lef[ Right Lengths: Left Channel Right Coeff Con[r. Espan.
1340 1435 100 3520 100 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
3112 SB94 4817.5 F
Blocked Obstructions num= 2
Sta L S[a R Elev Sta L Sta R Elev
ixxxRwx.::R�+a.:i�:ari�x.wxt�+�Fa*•.x..«:..Wir�a
2436 2900 4808 3257 4632 4808.5
CROSS SECTION OUTPUT Pzofile q100 year
i#'RAfvlfR�t4iitk4kikih#Mffrtt�Y##1:#+'.!+!4#ki4RR�A+I1'.lfR'.lAF�.tttftYt4i11Xii1fY\f1�1ff11l4R#h#*iYi4#MM
� E.G. Elev (fU ' 4815.46 * Elemen[ ' Lef[ OB t Channel * Right OB *
• vel Head (ft) * 0.09 • Wt. n-Val. * * 0.040 * 0.070 "
� W.5. Elev (ft) ' 4815.37 * ReaCh Len. (ft) * 100.00 * 3520.00 ' 100.00 '
R Crit W.S. (fU * 4810.54 * Flow Area (sq ft) " • 641.56 * 7623.43 *
+ E.G. Slope (f[/ft) '0.000994 • Area (sq ft) ` • 641.56 •17174.61 �
* Q To[al (cfs) '16700.00 • Flow (cfs) * * 2708.83 w13991.17 *
* Top width �ft) * 3214.35 * Top Width (ft) F * 91.03 * 3123.32 •
• Vel Total (ft/s) ' 2.02 * Avg. Vel. (ft/s) • * 4.22 * 1.84 *
a Max Chl Dpth Iftl ' 10.52 * Nydr. Depth (ftl * * 7.05 * 4.55 *
' Conv. Total (cfs) *529639.1 * Conv. (cfs) • " 85910.4 •443728.7 "
* Length Wtd. (ft) � 1000.62 • Wet[ed Per. (ft) " * 93 J4 • 1678.98 `
* Min Ch E1 (ft) * 4805.80 * SheaY (lb/sq ft) * * 0.42 • 0.28 •
* Alpha � 1.40 " SCYeam Power (lb/ft s) ' * 1.79 " 0.52 '
� Frctn Loss (ft) * 0.94 ' Cum Volume (acre-ft) • 686.75 * 296.97 k 383.80 "
* C � E Loss (fU * 0.02 * Cum SA (acres) * 219.68 • 36.83 * 151.88 i
...::.:..a.........+....x.:...x.........w..�....+......+.+...........+..+«.....���.+�++..a.....
�j Warning: Divided flow computed for this cross-sec[ion.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #500 year
iw..r:.:i�*rrr,«i:.ix+.r�++++i.+:.:«.�wt+::.+.rxr.xx+:..:atF�.ar:.++::....a..«�«wix.��i+:R«t�a+��
* E.G. Elev (ft) " 4818.14 ' Element * Left OB * Channel ' Right OB �
' Vel Head (fU ' 0.04 • Wt. n-Val. * 0.070 * 0.040 " 0.070 +
• w.S. Elev (ft) R 4818.10 * [teach Len. (ft) * 100.00 " 3520.00 • 100.00 R
• Crit W.S. (ft) * 4813.33 ` Flow Area (sq ft) * 2.53 R 897.10 *25787.02 �
* E.G. Slope (ft/fU '0.000313 ` Area (sq ft) * 2.53 " 897.10 *25781.02 •
� Q To[al (cfs) *41960.00 ` Flow (cfs) * 0.53 * 2578.86 '39380.62 •
* Top Width (fU ' 3292.99 ` Top Width (ft) * 6.09 * 95.00 ` 3791.90 *
• Vel Total (ft/s) ' 1.5"/ " Avg. Vel. (f[/s) * 0.21 + 2.87 ' 1.53 +
* Max Chl Dpth (ft) * 13.25 r Nydz. Dep[h (ft) ' 0.42 ' 9.44 * B.OB '�
* Conv. Total (cfs) "�370477.0 • Conv. (cfs) ' 29.8 *145689.2 *2224758.0 *
* Length Wtd. (ft) " 691.97 � Wetted Per. (ft) ' 6.15 • 98.14 + 3198.28 '
• Min Ch E1 (fU ' 4805.80 • Shear (lb/sq ft) * 0.01 * 0.18 * 0.16 *
* Alpha " 1.09 ' StYeam PoweT Qb/ft S) ^ 0.00 * 0.51 � 0.24 '
* Frctn Loss (ft) • 0.38 • Cum Volume (acie-£t) * 1283.75 • 398.06 • 852.25 `
* C & E Loss (ft) * 0.0� • Cum SA (acres) " 251.04 * 36.66 * 224.32 *
�r�x:���iRw:.�t�.w,::�i.r:�+�Wxxx:�».w,�a++:+�..+.�+*+wxr�a:+��+srr:i.��.+ry��.��i�at�wr.���xx:
Warning: Divided flow computed for this crosa-sec[ion.
Warning: The conveyance ratio (upstream conveyance divided by downs[ream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross aections.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #10 yeai
♦:�tax�.«�i:�x+i+�.t�;i::x::x.x.+t:�wr+«rr,�:t..++t,+t,r,++a�:k+�*r+x*+�ay.+:::�++�wxx+::�:a::xi.
* E.G. Elev (fU * 4812.70 ' Element * Left OB * Channel * Right OB *
* Vel Head (ft) * 0.05 ' Wt. n-Val. " ' 0.040 * 0.070 *
* W.S. Elev (ft1 * 4812.66 ' Reach Len. (ft) ' 300.00 t 3520.00 * 100.00 �
* Czit W.S. (ft) ' 4809.00 * Flow Area (sq fU ' * 401.98 • 3396.34 *
Page 69
51'VRAIN.rep
. * E.G. Slope (ft/ftl *0.000679 * Area (sq ft) * * q01.98 * 9090.28 *
* Q Total (Cfs) * 5950.00 * FloW (Cfs) * • 1075.53 � 4874.47 •
� Top Width (f[) t 2573.00 * Top Width (ft) * * 85.34 • 2487.66 +
� Vel Total (ft/S) • 1.57 + Avg. Vel. (ft/5) * + 2.68 * 1.44 *
* Max Chl Dp[h (tU � 7.81 * Nydr. Depth (fU * * 4.71 * 3.10 +
• Conv. Total (cfs) *22B39"/.2 * Conv. (cfs) " * 41285.3 *18'/111.9 '
* Leng[h Wtd. (fU ' 1396.25 ' Wet[ed Pei. (ft) • K 87.44 " 1096.10 '
� Min Ch E1 (fU �' 4805.80 * Shear (lb/sq fU • � 0.19 * 0.13 •
* Alpha * 1.22 + Stream Powei (lb/ft s) * * 0.52 ' 0.19 �
• Frctn Loss (ft) * L 13 * Cum Volume (acre-fU * 268.81 " 205.00 * 161.31 R
' C & E Loss (ft) * 0.03 * Cum SA (acres) + 157.50 * 35.42 * 99.33 *
+i#k#14t+4A#hk4R+xt�kf4*�ihi4x;F4tifi*'RM#414h#iY14R1'.!Y'k#1ii�ttwfi*rt4i1#Sf�.lkAkkY�#i4RY4xry*4ttT}t
warning: Divided flow computed for this cross-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous czoss
section. This may indicate the need £or additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #50 year
�..x.xx....+..::a+x+.....+..............++...+.++.:.+..+.....:.x+x.x+......x.x.....+.........�r
' E.G. Elev (ft) * 4814.60 * Element * Left OB • Channel * Right OB +'
• Vel Head (ft) + 0.07 R Wt. n-val. + ` �.040 ' 0.070 '
` W.S. Elev (ft) • 4814.53 • Aeach Len. (ft) * 100.00 * 3520.00 * 100.00 *
* Crit w.5. (ft) * 4810.04 * Flow Area (sq ft) * • 565.24 • 62ll.83 *
• E.G. Slope (ft/ft) '0.000871 ' AYea (Sq ft) * * 565.24 *14545.44 •
' Q Total (cfs) *12850.00 * Flow (cfs) ' * 2081.86 *10768.14 *
* Top Width (fU " 3161.17 ' Top Width (ft) + * 89.26 * 3071.91 *
• Vel Total Ift/s) * 1.90 � Avg. Vel. (ft/s) * • 3.6fl * 1.'13 �
* Max Chl Dpth (ft) * 9.68 * Hydr. Depth (ft) * * 6.33 * 3.78 *
* Conv. To[al (cfs) *435461.3 * Conv. (cfs) * • ']0550.2 `364911.1 *
' Leng[h Wtd. (ft) * 1070.98 < Wetted Per. (ft) ` ' 91.78 * 1644.11 •
" Min Ch E1 (fU * 4805.80 * Shear (10/sq ft) * * 0.33 " 0.21 *
' Alpha * 1.31 ' Stream Power (lb/ft s) * * 1.23 * 0.36 *
' Frctn Loss (ft) * 0.9� * Cum Volume (acre-tt) ' 551.77 * 269.39 * 312.26 '
� * C & E Loss (ft) * 0.02 • Cum SA (acres) * 169.39 + 36.62 * 88.30 �
> ...�,�R.r+�t:::.:.++�a.�+.:.:.+.....«.+x+++F�«a+.x..+�x�x::::�.::Rx.kx:i+::.:«.r:�a+x.+.�.xxx++i+•
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTZON
RIVER: St. Vrain River
REACH: FULL RIVER RS: 59195
INPUT
�escription: This cross section assumed the 'main channel bank statio�s' were
located at the last (downstream) in[ersection with the river.
Station Elevation Data num= 43
Sta Elev Sta Elev Sta Elev S[a Elev Sta Elev
.�i+it:ax.�xRi�rirr..r:«:n.r.wxia++.r:��:+����.�++.;3+�x...Rx+a++s�w:�wi��>�{i:a.
1105 4847 1214 4828 12"/2 4821 1299 4810 1344 4809
1402 4812 2118 48ll 2278 4810 2296 4815 2365 4815 �
2443 4805.5 2814 4805.5 2859 4805.5 2896 4813.5 2911 4813.5
2970 4803.33 3026 4803.46 3056 4806 3069 4810 3095 4817.12
3130 481'1.5 3191 4805.5 4583 4805.5 4625 4819.5 4775 4818.5
4747 4817.5 4"]76 4818.5 4936 4821.5 5007 4820.36 5045 4822.26
5058 4817.26 5069 4817.26 5089 4822.36 5207 4823.06 5406 4823.06
5608 4822.06 5808 4822.16 SB94 4822.36 5902 4821.56 5915 4822.36
6009 4822.06 62ll 4821.86 6362 4821.56
Manning�s n Values num= 3
Sea n Val Sta n Val Sta n Val
.:.::..::...».«..+.............+..,..:.»..:.+..�
1105 .07 29ll .04 3069 .0'/
Bank Sta: Left Right Lengths: Left Channel Right Coeff Con[r. Expan.
2911 3069 530 680 520 .3 .5
Ineffective Flow num= 1
Page 70
STVRAIN.rep
Sta L Sta R Elev Permanent �
� 3069 6362 481'7.5 F
Blocked 06structions num= 2
Sta L Sta R Elev Sta L Sta R Elev
•.�.....,:......:....xxx.x...:«x,.,....xxxw.+w+.
2300 2900 4808 3191 6000 4808.5
CROSS SECTION OUPPUT PYofile q100 yeaY
itR#k4kfk4T+#4#Sk#Si4kkY#*i+'YMY'.lt��4#i#tI11i'.lI1M*+##f4+YiffivlFFii4##1fi!#11tifl1SYi1f#R1Yi444f4#
* E.G. Elev (ft) " 4814.50 ' Element � Left OB * Channel R Right OB *
+ Vel Head (fU ' 0.15 * wt. n-Val. ' 0.070 * 0.040 * '
+ W.S. Elev (ft) � 4814.36 • Reach Len. (ft) ' 530.00 " 680.00 * 520.00 •
* Crit W.S. (fU ' 4811.14 ` Flow Area (sq ft) • 6283.64 R 1336.12 * '
� E.G. Slope (ft/fU '0.000885 * ATea (sq ft) ' 6283.64 * 1336.12 R 8493.23 *
• Q Total (Cfs) '16"]00.00 ' Flow (C£5) *10613.2� * 6086.73 * *
* Top Width (ft� * 3183.64 ' Top Width (ft) � 1546.12 ' 158.00 * 14"19.52 *
* Vel Total (f[/s) ` 2.19 * Avg. Vel. (£t/s) ' 1.69 " 4.56 "' *
* Max Chl Dpth (ft) ' 11.03 * Hydr. Depth (fU ' 4.06 * 8.46 * '
* Conv. Total (cfs) '561511.8 * Conv. (cfs) *356654.8 *204657.0 * ` �
� Length Wtd. (ft) • 587.04 * Wetted Per. (ft) * 1548.63 * 759.58 ` '
* Min Ch E1 (fU * 4803.33 ` Shear Qb/sq ft) * 0.22 ' 0.46 * *
t Alpha * 1.95 * Stream Power (lb/ft s) * 0.38 * 2.11 * '
• Frctn Loss (ft) ' 0.34 * Cum Volume (acre-fU • 6�9.54 '* 217.06 * 354.34 R
* C & E Loss (ft) " 0.03 " Cum SA (acres) * 217.91 * 26.77 R 146.60 *
#1#iFi'F#AYRf'.l44Fi+ii#4itif!*4tti##ik4lle**tt4ltk�.lf1l1fei44Yi1i11:�.l1}tkiRRlktf�.t#kiY11vlik4�kf1/i11t14i
Warning: Divided flow computed for this cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0 J or greater than 1.4. This may indicate Che need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #500 yeaT
*lF�tR4F4f1:R4+�f4i4lfwY##i+£tYf1#i11RhA1:4ii1'.!l1FR#i#ii:i44tiffxtttiilF#F�ki'ki1111ki+Yi4lttii#i4#
* E.G. Elev (ft) • 4617.69 " Element * LeFt OB * Channel " Right OB �
� * Vel Head (ft) ' 0.27 ' Wt. n-Val. # 0.070 * 0.040 ; ;
< W.S. Elev (ft) ` 481"/.42 ' ReaCh Len. (Et) 530.00 680.00 520.00
' Crit W.S. (ft) * 4813.48 * Flow Area (sq ft) *11221.94 t 1820.38 * `
` E.G. Slope (£t/ft) *0.001215 * Area (sq ft) •11221.94 * 1820.38 '13088.94 '
R Q Total (cfs) *41960.00 * Flow (cfs) *30012.99 `11947.01 R *
� Top Width (ft) * 3342.61 + Top Widih (ft) * 1630.22 � 158.00 * 1554.38 t
R Vel Total (ft/s) • 3.22 * Av9. Vel. (ft/s) ' 2.67 * 6.56 * *
� Max Chl Dpth (fU • 14.09 * Hydr. Depth Ift) * 6.88 * 11.52 * *
' Conv. Total (cfs) *1203550.0 ' Conv. (cfs) �8608']0.8 *3426�9.4 * *
+ Length Wtd. (ft) • 569.36 * Wetted Per. (ft) `� 1633.46 * 159.58 * ;
' Min Ch E1 (ft) • 4803.33 * Shear (lb/sq ft) * �.52 * 0.87 k
* Alpha • 1.68 " Stream Power (lb/ft s) * �.39 � 5.68 * `
* Frctn Loss (ft) " 0.34 + Cssm Volume (acre-ft) * 1270.87 " 268.26 * 807.64 *
* C 6 E Loss (fU ' 0.09 * Cum SA (aczes) ' 249.16 t 26.44 * 218.88 *
#fi#'.F#*t*1111fi1h'Ff###!Mi#i#+Y4'.lR�4if#1:M4Yiftf*fe##i4YIFTst4+%MfRlti#+iffRliii1i11/#i'f1lFf£#4iSrt
Warning: Divided flow computed for [his Cross-seCtion.
Warning: The conveyance ratio (upsizeam conveyance divided by downstream conveyance) is less than
o.� or greater than 1.4. This may indicate ihe need for additional cro99 sections.
Note: Multiple critical dep[hs were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #10 year
lRk1#4�##if1£f:+#i4i1lf1R4#lftitY'.l11}*i111f#+41AA!'4fi1RF�li44iiR'R}i#i#41#:Yf44i1fih+lffilf�.!#hi#11R
+ E.G. Elev (ft) * 4811.55 * Element * Left OB * Channel * Right OB * �
t Vel Head (ft) * 0.14 * Wt. n-Val. ` 0.�7U * 0.040 * '�
* W.S. Elev (ft) * 4811.40 * Reach Len. (ft) � 530.00 * 680.00 * 52�.00 *
k Crit W.S. (ft) � ` 4809.16 * Flow Area (sq ft) ' 1948.52 * 881.83 * "
* E.G. Slope (ft/fU *0.000990 " Area (eq fU * 1948.52 * 981.83 * 4170.96 •
* Q Total (cfs) " 5950.00 * Flow (cfs) ' 2549.99 * 3400.01 *
+ Top Width (ft) " 2630.44 * Top Width (ft) • 1039.77 145.83 * 1444.83 *
* Vel Total (ft/s) ` 2.10 � Avg. Vel. (ft/s) * 1.31 ` 3.86 * *
* Max chl Dpth (fU ` 8.07 " Hydr. Depth (ft) ' 1.87 * 6.05 *
* Conv. Total (cfs) *189065.6 ' Conv. (cfs) ' 81027.9 *108037.7 * '
* Length Wtd. (ft) * 610.97 * Wetted Per. (ft) i 1040.89 * 147.23 • *
� * Min Ch E1 !fU * 4003.33 * Shear (lb/sq fU 0.12 " 0.37 *
� * Alpha * 2.09 * Stream Power (lb/ft s) • 0.15 • 1.43 • "
Page 71
STVRAIN.rep
R Frctn Loss (fU • 0.31 * Cum Volume (acre-ft) * 266.57 * 153.13 * 146.06 •
� C & E Loss (ftl � 0.05 k Cum SA (acres) * 156.31 * 26.08 * 74.82 •
x+..xx.......a..::,,....:.�+.x...r....+.++«...xx..+:.«a+r....+.+.i�+..xxx...++a+.�.x.....:x.x++
Warning: Divided flow computed for this cross-section.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less ihan
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple cri[ical depths were found at this location. The cri[ical depih with the lowest,
valid,
water surface was used.
CROSS SECTION 0UTPUT Profile p50 yeaY
x.xw..ra+�.xr..�::«+.+t�:x.r:fi+�at++xRwxrr,+a+r+Rwx�cx��+��.�r�it:�:�i��ai����w.�.�+ra�:�x�+++..,.�
* E.G. Elev (Et) * 4813.61 * Element * Left OB • Channel * Right OH +
* Vel Nead (f[) � 0.14 ' Wt. n-Val. * 0.090 * 0.040 * *
* W.S. Elev (ftl � 4813.47 * Reach Len. (ft) • 530.00 * 680.00 * 520.00 �
* Crit W.S. (ft) * 4810.5'1 + Flow Area (sq ft) • 4912.77 * 1195.40 * +
"' E.G. Slope (ft/ft) •0.000939 * Area (sq ft) t 4912.77 � 1195.40 � 7180.18 '
* Q Total (cfs) �12850.00 ' Flow (cfs) +' "]635.31 * 5214.69 ' •
* Top Width (ft) i 3145.15 * Top Wid[h (ft) * 1518.27 * 157.81 * 1469.0"] *
* Vel TOtal (ft/S) * 2.10 " Avg. Vel. (ft/s) * 1.55 • 4.36 * *
* Max Chl Dpth (ft) * 10.14 * Hydr. Depth (ft) • 3.24 * "].57 * •
* Conv. Total (Cfs) �419270.3 * Conv. (Cfs) t249125.1 •170145.2 * +
• Length Wtd. (ft) * 591.82 * Wetted Per. (ft) • 1520.43 • 159.39 ' t
* Min Ch E1 (ft) � 4803.33 + Shear (lb/sq ft) * 0.19 • 0.44 � *
* Alpha i 2.07 * Stream Power (16/ft s) * 0.29 * 1.92 * •
* Frctn Loss (fU * 0.34 • Cum Volume (acre-ft) * 546.13 * 198.25 * 287.32 �
' C & E Loss (fU r 0.04 ' Cum SA (acres) * 167.60 • 26.63 * 83.09 *
fFiff;tfi�#+tf*�.lyvlfit+Ftft+#Y41��At1ti#Y*iSi4i;k1'.lffY'kit;Fvltix4f+thMlilii+4#14fYi#4iii4wtFAv!#4tt
Warning: Divided flow computed for this cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or grea[er [han 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical dep[hs were found at this location. The critical depth with the lowest,
valid,
water surface was used.
✓ CROSS SECTION
RIVER: SG. Vrain River
REACH: FULL RIVER RS: 58515
INPUT
Description:
Station Elevation Data num= 4B
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
tt{rt*#kiYtt��.!!�.l;kwftfR+f�lkxx*tRFhh'Rf+hi;F:'1:Rt+Iiit+ik#t1ff14l:Y#F11i#Y+k�!*Y1+tni#
1330 4827.3 1350 4822 1370 4821.2 1384 4819.5 1402 4815.2
1458 4802 1598 4803 1740 4805.7 1802 4805.7 1839 4805.5
1892 4805.2 1995 4807.5 2065 4810 2107 4803 2201 4802
2399 4B02 2599 4802 2693 4802 2722 4802 2']50 4802
2"198 4802 2996 4802 3070 4802 3203 4802 3234 4802
3251 4802 3309 9807.65 3331 4805.15 3345 48�5.75 3397 4805.85
3432 4803.85 3499 4803.85 3542 480"/.75 355'] 4813.5 3563 4808.15
3630 4805.5 3987 4805.5 4023 4816.5 4095 4817.5 4183 4818.6
4228 4818.5 4983 4820.5 5009 4816.5 5143 4816.5 5204 4815.65
5419 481�.05 5455 4879.05 5455.1 4819.05
Manning�s n Values num= 3
Sta n val Sta n Val Sta n Val
.+.++..+.«..:.<+..:..+..+.:..........::..:.:.+.+
1330 .07 3309 .04 3542 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
3309 3542 ']80 1114 4B0 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev Permanent
1330 2256 4815.5 F
3687 5455.1 9817.5 F
Blocked obstructions num= 3
Sta L S[a R EleV Sta L Sta R Elev Sta L Sta R Elev
i+'k***Yi**kF1M*ii₹�}h*Y'k!i#F*'.lkMiT}��.Yf1Rh41YF#kf4#k##+Y#4�.!#*ii1#i#4i+414
� 1330 3309 4808 4983 6000 4820.5 3551 3987 4808.5
Page 72
STVRAIN.rep
' CROSS SECTION OUTPUT Profile q100 year
tTk44+4411i t t;A�fftft�tttitthifAY�4i4fif1iif1f1ik11lftFlhhlY#�##1#Y�+#1iff1A11ktl4itl!#1}xttk
* E.G. Elev'(ft) " 4814 .13 • Element * Left OB * Channel * Right oB +
* Vel Head (fU * 0.08 * Wt. n-Val. " 0.070 * 0.040 " 0.070 •
• W.S. Elev (ftl ' 4814.05 * Reach Len. (fU * 780.00 ' 1114.00 " 480.00 "
` Crit W.S. (ft) * 4809.84 * Flow Area (sq fU * 63�1.4'1 • 2078.02 � �58.9� �
* E.G. Slope (f[/fU `0.000406 ` Area (sq ft) *11363.6"/ * 2078.02 ` 2493.53 *
t Q Total (cfsl *16700.00 * Flow (cfs) * 9054.68 * 6679.23 "' 966.09 "
* Top Width (ft) � 2605.10 R Top Width (ft) ' 1902.12 * 233.00 � 469.98 •
' Vel Total (ft/s) ' 1.81 * Avg. Vel. (ft/s) i 1.42 a 3.21 � 1.27 *
* Max Chl Dpth (ft) • 10.20 * Nydr. Depth (fU * 6.05 * 8.92 � 5.23 �
* Conv. Total (cfsl '828300.9 * Conv. (cEs) *449101.6 *331282.4 * 4�91'1.0 �
* Length Wtd. (ft) t 848.17 * Wetted Per. (ft) ' 1053.00 • 233.74 * 147.97 *
' Min Ch E1 (ft) ` 4603.85 * Shear (lb/sq ft� * 0.15 * 0.23 ' 0.13 *
'� Alpha ' 1.62 " Stream Power (lb/ft s) ' 0.22 • 0.'13 * 0.1"] `
* Frctn Loss (ft) • 0.45 • Cum Volume (acre-ft) • 572.18 * 190.41 + 288.76 �
* C & E Loss (ft) � 0.02 • Cum SA (acresl � 196.93 * 23 J2 * 134.96 �
1kMifM�.!#1'.!*hi1;A£'kR<<<ffftft�tiYff+Y��t�:f�ttittt4YYrt1kf4Rx*#Ii1Y'.l41:'.lhlikik4h#44'�IRftt�F��tttttftf
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile k500 year
#iFi#i�.F#Y'Jikikikk�RkR��ff4�t!!#!i+#�.lRl4hifRkf4YYY#fkMF111t'.!'.l4�.l4f1+##k'kiYfif!!�#4Y444Fi##ffAyRY:'.!•
t E.G. Elev Ift) * 4817.26 k Element * Left OH * Channel * RighL OH *
i Vel Head (ft) * 0.08 * Wt. n-Val. * 0.070 � 0.040 i 0.070 * �
* W.S. EleV (fU ' 481�.18 ' ReaCh Len. (fU � 780.00 " 1114.00 ' 480.00 �
" Crit W.S. (fU * 4811.53 • Flow Area (sq ft) '17335.90 * 2807.06 ' 1212.66 +
� E.G. Slope (ft/ft) *0.000348 * Area (sq fU "'17335.90 ' 2807.06 * 4001.6'l *
* Q Total (cfs) '91960.00 ' Flow (cfsl *29805.43 •10202.41 * 1952.1'/ *
* Top Width (fU ` 26"18.22 a Top Width (ft) '� 1915.29 • 233.00 � 529.94 *
� Vel Total (ft/s) * 1.96 ' Avg. Vel. (ft/s) * 1.72 • 3.63 � 1.61 �
* Max Chl �pth (fU ' 13.33 * Hydr. Depth (f[) * 9.05 + 12.05 � 8.36 *
* Conv. Total (cfsl `2249054.0 • Conv. (cfs) `1597569.0 *546848.4 �104635.9 '
� Length Wtd. (ft) ` 806.82 " Wetted Per. (fU * 1916.56 • 233.�4 ` 147.97 •
9 * Min Ch E1 (fU ' 4803.85 • Shear (lb/sq fU * 0.20 * 0.26 ' O.1B *
* Alpha ' 1.41 ' Stream Power (lb/ft s) * 0.34 * 0.95 ` 0.29 *
* Frctn Loss (fU ' 0.36 ' Cum Volume (acre-ft) * 1097.14 * 252.14 " �05.63 •
* C 6 E Loss (ft) ' 0.01 • Cum SA (acresl * 227.59 ' 23.39 +' 206.43 R
.:.:...x:..a.......::...:....xw........x...:.........x.+.:.::.:.+.+......:«+............:..+...
Note: Multiple critical depths were found at [his location. The critical depCh with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile p10 year
....�w..:.:.....+....x.,...:.+.:xx:+.+e+.«.t..,:........:.::.:...:.xw:.::....+..W.,..:.:::....+
* E.G. Elev (ftl * 4811.18 * Elemen[ * Left OB * Channel � Right OB •
* Vel Head (fU * 0.04 * Wt. n-Val. * 0.070 * 0.040 ' 0.070 •
' W.S. Elev (ft) ' 4811.14 ' Reach Len. (Et) * ']80.00 * 1114.00 * 980.00 *
* CYit W.S. (ft) * 4806.43 ` FloW Area (sq fU • 3304.51 • 1399.39 ' 34'/.05 *
* e.G. Slope (f[/£U •0.000315 � Area (sq fU • 5841.55 * 1399.39 + 115a.16 *
* Q Total (cfs) • 5950.0� � Flow (cfs) • 2666.95 • 3039.98 ' 243.27 *
'" Top Width (ft) ' 2570.83 * Top Wid[h (fU * 1889.77 * 233.00 * 448.06 •
• Vel Total (ft/S) ' 1.18 • Avg. Vel. (ft/s� � 0.81 * 2.1'] ' 0.'10 *
• Max Chl Dpth (ft) • �.29 * Hydr. Depth (fU ' 3.14 � 6.01 * 2.55 *
* Conv. Total (cfs) '3354"]2.5 * Conv. (cfs) *150356.9 '1A400.0 • 13715.9 *
* Length Wtd. (f[) ' 916.49 * Wetted Per. (fU ' 1053.00 ' 233.74 • 137.82 �
* Min Ch E1 (ft) " 4803.85 * Shear (lb/sq f[) ` 0.06 � 0.12 • 0.05 *
" Alpha w 1.96 * Stream Power (lb/ft S) ` 0.05 ' 0.26 i 0.03 *
* Frcin Loss (ft) * 0.43 ' Cum Volume (acre-fU ' 219.18 • 135.32 ' 114.30 `
* C & E Loss (ft) * 0.02 ' Cum SA (acresl * 138.48 * 23.12 ' 63.52 *
1�Ff#*kA#fi4'Fi#tfAfffff4lRtYflflif4f41#'fl11if111fA�ttltfiif4l}4t#iffllhRlflikYlYf1!#4f}F4fi#Yn14
Warning: Divided flow computed fOr this Cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0 J or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
� CROSS SECTION OUTPUT Profile #50 year
Page 73
STVRAIN.rep
.w.+....«.x....x..x...x.x.+..+....»...:«......:x..•..r.:x...e..++a�•�+�t:.«+•++.....e..........
, * E.G. Elev (ftl * 4813.24 R Element * Left OB * Channel ' Right OB *
* Vel Head (ft) ` 0.07 * Wt. n-Val. * 0.070 * 0.040 • 0.070 •
* W.S. Elev (ft) ` 4813.11 ' Reach Len. (fU ` 780.00 * 1114.00 * 480.00 t
� Cri[ W.S. (ft) * 4809.47 � Flow Area (sq fU * 5442.90 " 1872.55 * 631.31 �
* E.G. Slope (ft/fU '0.000379 * Area (sq fU ` 9687_96 * 1872.55 � 2081.04 *
* Q Total (cfs) •1285�.00 � Flow (cfs) R 6726.98 • 5424.13 � 698.88 •
� Top Width (fU * 2596.16 * Top width (ft) * 1898.38 * 233.00 ` 464.78 •
* Vel Total (ft/s) ` 1.62 � Avg. Vel. (ft/s) * 1.24 " 2.90 • 1.11 *
* MaX Chl �pth (fU * 9.32 • Hydr. Depth (ft) " 5.17 * 8.04 * 4.39 "
� Conv. Total (cfs) *659798.� • Conv. (cfs) *345405.1 "278508.7 • 35885.0 *
* Le�gth Wtd. (ft) * 862.13 � Wetted Per. ffU ' 1053.00 * 233.74 * 146.55 �
� Min Ch E1 (ft) ' 4803.85 • Shear (lb/sq ft) * 0.12 * 0.19 � 0.10 *
* Alpha ` 1.69 • Stieam POWeY (lb/ft 5) * 0.15 * 0.55 * O.11 '
• FYCtn Loss (ft) ' 0.45 ' Cum Volume (aCie-ft) � 457.30 * 174.31 * 232.05 '
* C & E Loss (ft) * 0.02 ' Cum SA (acres) * 146.82 � 23.58 * 71.55 '
�x.:��.:�t.r.3x.:a:i+�rxair�:.�:t+.�+R�+.k+r:.wr..:.t�tat�rt�*sMF�rir�rr�rr��ir�rr.t.:�w.�wi�t•
Warning: Divided flow computed for this cross-sec[ion.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance7 is less than �
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 57401
INPUT
Description: This cross-section changed from the pre condition at station 1529
by lif[ing the elevatio� 2 feet to facilitate a future detention
pond.
Station Eleva[ion Data num= 50
Sta Elev SLa Elev Sta Elev Sta Elev Sta Elev
.++......+.+..:x.::.:.....xx....+..,..+....:......:.a.+.w......«x.�.«+:.:.x.:�..
y 1320 4826 1340 4824 1360 4822 1480 4812.8 1529 4815
7535 4813 1582 4823.5 1638 4824.5 16�4 4828.1 1844 4827.5
1857 4824.5 2048 4802 2080 4802 2098 4802 2243 4802
2267 4802 2515 4802 2706 4802 2854 4802 3055 4812
3082 4811 3100 4803 3176 4803 3189 4806 3i12 4805
3225 4807 3244 4807 3340 4812.5 3399 4806.25 3401 4805.5
4333 4805.5 4401 4816.5 4503 4815.5 4612 481�.3 4665 4816.5
4908 4816.5 4974 4805.5 5269 4805.5 5314 4817.5 5409 4816.5
5495 4816.8 5539 9814.65 5544 4816.65 5571 4816.65 5579 4815.45
5586 481�.15 5�60 4814.�5 5940 4814.65 61�4 4814.65 6378 4818.25
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
+..+.ra.+..+......x++..••+++..w.x+:....:...++..+
1320 .07 3082 .04 3244 .07
Bank Sta: Left Right Lengihs: Left Channel Right Coeff Contz. Expan.
3082 3244 830 905 790 .3 .5
Ineffective Flow num= 2
Sta L S[a R Elev Permanent
1320 2532 4015.5 F
39B6 6378 4817 F
Blocked 06structions num= 3
Sta L S[a R Elev Sta L Sta R Elev Sta L Sta R Elev
.+.:+..+«.+.wr.+.............a+.«x.r�«...a......x...x:.«:�.x.+:...+.+..+
1360 1582 4814 1857 3082 4808 3380 5409 4808.5
CROSS SECTION OUTPUT Profile #100 year
1+f1Y111R111k14#Y##1f#Y#iI/lffi*kF4i4FlfiYhiiiiY#14F+#11iMY4xff�1lwRl111Rff1�wfiltW�AfkYY1Y1Yi♦
+ E.G. Elev (£t) ' 4913.66 � Element * Left OB * Channel • Right OB �
� Vel Head (ft) * 0.13 R Wt. n-Val. • 0.070 * 0.040 * 0.070 *
w W.S. Elev Ift) � 4813.53 * Reach Len. (fU * 830.00 * 905.00 w 790.00 *
* Crit W.5. (fU * 4810.36 * Plow Aiea (sq fU " 2786.62 * 1441.98 * 353�.57 *
• E.G. Slope (f[/fU '0.000737 * Area (sq ft) ' 5875.04 • 1441.98 * 7209.37 *
* Q Total (cfs) �16700.00 * Flow (cfs) ' 473�.15 * 6190.46 * 5772.40 +
� � Top Width (£t) • ZBOS.B3 * Top Width (fU * 1131.88 " 162.00 * 1511.94 •
Page 74
STVRAIN.rep
, + Vel Total (R/s) • 2.15 � Avg. Vel. (ft/sl • 1.70 * 4.29 * 1.63 *
* Max Chl Dpth (fU ' 10.53 * Nydr. Depth (fU * 5.07 ' 8.90 ' 4.77 �
* Conv. Total (cfs) *615066.9 * Conv. (cfs) *174470.7 *227996.8 *212599.3 *
� Length W[d. (f[1 • 855.60 ` Wetted Per. (ft) ` 550.12 * 164.21 ` 742.62 ;
+ Min Ch E1 (fU ` 4803.00 ' Shear (lb/sq ft) * 0.23 ' 0.40 � 0.22
� Alpha ' 1.B5 • Stream Power (lb/ft s) t 0.40 * 1.73 ` 0.36 �
� Frctn Loss (fU ` 0.62 ' Cum Volume (acre-ft) * 417.84 * 145.40 t 235.30 '
• C & E Loss (EU * 0.01 * Cum SA (acres) ' 169 J6 * 18.67 * 124.04 •
♦ffllf�f4ih1l4k*Ix}ii�f111Y1Tx�f#ifYltYfflitf�flhM�tfikl4#fi%1kA1fk#11#4Yi11�fk4ih£IRt1#f44#Mii
Warning: Divided flow computed for Ghis cross-section.
Note: Multiple critical depths were found at this location. The critical depth with [he lowes[,
valid,
wa[er surface was used.
CROSS SECTION OUTPUT Profile p500 year
.......axx........x.x........+.r�««....xx.....xx«...w...+.«.......•..+...'x.i•..+.r...�+...+.x.
* E.G. Elev (ftl * 4816.89 * Element * Left OB ' Channel " Right OB �
* Vel Head (ft) * 0.13 * wt. n-Val. ` 0.070 • 0.040 * 0.070 •
� W.S. Elev (ft) " 4816 J6 * Reach Len. (fU ' 830.00 * 905.00 • 790.00 *
+ Crit W.S. (fU ' 4811.99 * Flow Area (sq fU * 9838J1 • 1965.48 * 5935.30 �
* E.G. Slope (ft/ft) *0.000591 • Area (sq fU * 9838.71 * 1965.48 *13631.34 +
* Q Total Icfs) *41960.00 * Flow (cfs) '20419.56 " 9291.46 �12248.99
• Top Width (EU * 4317.63 ' Top Width (ft) * 1282_84 * 162.00 * 2872.79
+ Vel Total (ft/s) * 2.37 • Avg. Vel. (ft/s) ` 2.08 * 4.73 * 2-06 •
* Max Chl Dp[h (ft) * 13.76 � Hydc. Depth (ft) * 7.67 a 12.13 � 8.00 *
� Conv. Total (cfs) '1�25282.0 ' Conv. (cfs) •839597.4 R382039.� •503645.3 •
* Length Wtd. (fU ' 848.92 � Wetted PeY. (ft) * 1284.07 ' 154.21 ; 942-62 *
* Min Ch E1 (ft) * 4803.00 * Shear (lb/sq fU * 0.28 * 0.44 0.30
• Alpha � 7.48 � Stream Power (lb/ft s) * 0.59 ` 2.09 ' 0.61 *
• Frctn Loss (f[) * 0.77 • Cum Volume (acre-fU ' 853.84 * 191.12 � 608.47 �
* C & E Loss (ft) * 0.10 t Nm SA (acres) ' 198.96 " 18.34 ' 189.69 *
♦i4i1RI�Wi�k�Ftff*If!£ti*f1T#RMihft�FxTitx++i�t�itkftti#1+#ftklfYMRtk4iki4i1f14#tYr�x>tti�kA�f+
Warning: �ivided flow computed for this cross-section.
Warning: The conveyance ratio (upstceam conveyance divided by downstxeam conveyance) is less than
� 0.7 oz grea[er than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical dep[hs were found at [his location. The critical depth with [he lowest,
valid,
water suzface was used.
CAOSS SECTION OUTPUT Profile #10 year
:�ai��::F�r.x.:��rt.:.a�....+tiwt+i�r:��a3r:i�xx..+F..x.3+�t�Rx.��++���ai�r*r�w:.:ixw.rt��tiR��.
' E.G. Elev (ft) ' 4810.�4 � Element • Lef[ OB * Channel • Right OH '
* Vel Nead (f[) * 0.10 ' Wt. n-val. ' 0.070 * �.040 • 0.070 ±
* W.S. Elev (ftI ' 4810.63 ` Reach Len. (ft) * 830.00 * 905.00 * 790.00
• Crit W.S. (ft) • 4808.86 ' Flow Area (sq ft) ` 1234.71 " 972.59 ' 1433.84 Y
k E.G. Slope (ft/fU '0.000756 ' Area (sq ft) � ' 2672.23 � 972.59 ' 2940.93 k
* Q Total Icfs) • 5950.00 * Flow (cfs) * 1324.55 * 3264.26 ' 1361.19 k
* Top Width (ft) ' 2629.50 ' Top Width (fU ± 1052.79 ; 161.17 * 1415.54 e
• Vel Total (ft/s) � 1.63 * Avg. Vel. (ft/s) 1.07 3.36 0.95
* Max Chl Dp[h (fU ' 7.63 ' Hydr. Depth (ft1 • 2.49 • 6.03 ' Z.07 {
* Conv. Total (cfs) *216376.4 ' Conv. (cfs) * 48168.4 •118707.4 * 49500.6
* Length Wtd. (£U * 878.89 • Wetted Pez. (fU R 495.58 ; 163.31 * 692.24 *
` Min Ch E1 (ft) * 4803.00 ' Shear (lb/sq ft) 0.12 0.28 0.10
• Alpha * 2.49 " Stream Power Qb/ft s) ' 0.13 * 0.94 ' 0.09 '
� Prctn Loss (fU * 0.78 ' Nm Volume (acre-ft) ' 142.96 * 1D4.99 ` 91.74 `
* C & E Los9 (£U * 0.04 * Cum SA (acres) * 112.14 � 18.08 53.25
rt+i�ar.++��x�tr�x:.tirr+++axx+�x�iarxr.:«xr.::.++.:+�R::+a«.3++»i�++t++W*�t+a�+ia�:��+w�Rx.xt
Warnin9: ➢ivided flow computed for this cross-section.
Note: Multiple cri[ical depths were found at this location. The czitical depth with ihe lowest,
valid,
water sur£ace was used.
CROSS SECTION OUTPUT Pmfile #50 year
Fi#fxlf#i#ili11RRR1#k1FlAfiiflf#lkkf#lk44lt11##1tlftxf�A�lfkfM1t�14lkiiflf�i111f11xi1*ifx*kS#Fk
* E.G. Elev (fU * 4812.78 � Element ` LeEt OB + Channel + Right OB `
* Vel Head (fU ' 0.12 ' wt. n-Val. " 0.070 * 0.040 * 0.070
* W.S. Elev (ft) ' 4012.65 * Reach Len. (EU * 830.00 905.00 790.00 ;
* Crit W.S. (ft) ` 4809.96 * Flow Area (sq EC) * 2303.49 • 1299.68 � 2885.79
* E.G. Slope Ift/ft) *0.000747 • Area (sq ft) * 4884.05 " 1299.68 * 5887.40 i
� t Q Total (cfs) `12850.00 � Flow (cfs) ' 3471.66 ; 524�.30 � 4138.03
� Top Widih (fU " 2784.3B • Top Nidth (f[I • 1124.43 162.0� � 1497.95
Page �5
STVRAIN.rep
R Vel Total (ft/s) * 1.98 " Avg. Vel. (ft/s) ' 1.51 * 4.03 * 1.43 *
� * Max Chl Dpth (ft) • 9.65 * Hydr. Depth (ft) ' 4.19 * 8.02 * 3.89 *
* Conv. Total (cfsl '470185.3 * Conv. (cfs) `127029.2 *191744.2 *151411.9 +
* Length Wtd. (ft) • 858.97 * Wetted Per. (ft) • 550.12 � 164.21 W 742.62 *
* Mi❑ Ch E1 (fU " 4803.00 " Shear (lb/sq ft) * o.20 * 0.37 t 0.18 *
t Alpha � 2.02 " Siream Power (lb/ft s) * 0.29 • 1.49 ' 0.26 *
' Frctn Loss (ft) ' 0.61 ' Cum VolUme (aCTe-ft) • 326.84 * 133.�4 " 186.14 "
* C & E Loss (f[1 * 0.01 ' Cum SA (acres) * 119.75 * 18.53 * 60.73 *
4t�ti11if1kYlkSi�kAfl�kf4kY4+kWi1AAlfi#414#kiif14ff1\FRfT+ii#f4IMliiif1x1414�fi#M#xlAttklii+F#it
Warning� Divided flow compu[ed for this cross-section.
Note: Mul[iple critical depths were found at this location. The critical depth ��ith the lowest,
valid,
water surface was used.
CR0SS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 56496
INPUT
Description: This cross-section changed from the pre condition at station 2027
and 2022 to account for a berm that will he created to facilitate
a detention pond in the future phases of St. Vrain.
The
mannings value foz �the lef[ over-bank section of this
cross-section has been raised so that the weir flow over the
bridge is within 30-20% of [he left overbank flow for this
cross-section.
Station Eleva[ion Data num= 50
Sta Elev Sta Elev Sta Elev S[a Elev S[a Elev
r:�.fi:.:.:a.t:»wR.R,..,,.,iR.w*+�rt*+rtrk.��s:ii�«a..+..i:i..�+F�tk.i+:i+.iaa+r.
1280 4815 1300 4813 1373 4811.5 1597 4810.5 1805 4810
2022 4810 2027 4810 2044 4814 2059 4814 2083 4813.5
2169 4807 2192 480"].3 2395 4806 2423 4806 2474 4806.8
/ 2594 4806.9 2732 4806.5 2766 4806.5 2820 4808.5 2877 4808.5
2938 4804.5 3139 4H01 3347 4807 3429 4809.5 3451 4803.55
3549 4802.55 3619 4802.55 3640 4806.15 36B"/ 4807 3921 480'/
3873 4808.5 3951 480"/.7 4020 4807.5 4043 4807.7 4248 4808.5
45 4 4810.5 4690 4812.5 4968 4813.5 5169 4814.7 5402 4815.9
56�5 4016.9 591"] 4827 6029 4816.15 6050 4814.75 6076 4814.75
6237 4814.45 6441 4815.35 6696 4814.65 6920 4813.85 7132 4814.95
Manning'5 n Values num= 3
Sta n Val Sta n Val Sta n Val
,:,:::..+«+...:.:...:..++.......«+..+x...+x+....
1280 .1 3429 .04 3640 .07
Bank Sta: Left Righ[ Lengths: Left Channel Right Coeff Contr. Expan.
3429 3640 233 206 1B0 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev Permanent
1280 3203 4811 F
3']21 7132 481"] F
Blocked O6struction5 num= 3
Sta L S[a R Elev Sta L Sta R Elev Sta L Sta R Elev
r.+..+.,r+.+.::...+.+.:x+..a..tx+..+..:.«.+a+..+.+a..w.+,.xx.....xx:..++.
1280 202"1 4814 2044 3429 4808 4248 4815 4008.5
CROSS SECTION OIITPUT Profile #100 year
ifYfYff1141Rf}iii414FkFiYhlMl:i4YiiiF4�!*kF}iF1t#i*t++WAt�ft4;4i#iilii4*4Y�.liY'R1f:R1TFA#ktikhY411Yk
R E.G. Elev (ft) ' 4813.03 * Element • LeEt OB a Channel * Right OB •
* Vel Head (ft) * 0.09 * W[. n-Val. * 0.100 * 0.040 * 0.070 •
w w.S. Elev (fU * 4812.86 * Reach Len. (ft) * 112.00 * ll2.00 * 112.00 {
' Crit W.S. (ft) ` 4809.43 * Flow Area (sq ft) ' 6295.94 * 1992.99 • 494.94 •
* E.G. Slope (f[/ft) *0.000710 t Area (sq ft) ' 6295.94 * 1992.99 * 4333.79 •
* Q To[al (cfs7 '16�00.00 "' Flow (cfs) � 5169.15 * 6510.59 " 693.31 '
• Top width (fU � 2711.88 • Top Width (fU ' 1349.75 * 211.00 * 1151.13 *
• Vel Total (ft/s) * 1.41 • Avg. Vel. (ft/sI ' 0.82 • 3.27 * 1.40 '
• Max Chl Dp[h (ft) * 10.31 * Hydr. Depth (ft) ' 4.66 ' 9.45 • 6.11 *
* Conv. Total (cfs) •626639.8 • Conv. (cfs) "261794.3 •329732.2 * 35113.3 *
* Length Wtd. (f[) ' 112.00 ` Wetted Per. (ft) ' 1353.18 * 212.04 w 81.01 *
Page ]6
STVRAIN.rep
* Mi� Ch E1 (EU * 4802.55 * Shear Qb/sq ft) k 0.21 * 0.42 � 0.27 +
J � Alpha + 3.03 � Stream Power (lb/ft s) • 0.17 " 1.36 * 0.38 *
* Frctn Loss (ftl * 0.14 * Cum Volume (acre-fU ` 301.88 * 109.72 • 130.63 i
" C & E Loss (f[) * 0.2� • Cum SA (acres; • 146.12 • 14.79 � 99.89 •
f1wRt�1MMt1x4rifii4fR�[fttflxFttfffiYkS#WWk1#*1MR£kA}£1xhRxx}Rxl�tf4lxxAF#tRtfxkA4�44f44k/Rxf£4
Warning: Divided flow computed for this cross-section.
Warning: The veloci[y head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.� or greater [han 1.4. This may indicate [he need for additional cross sections.
Note: Multiple cri[ical depths were found at this location. The critical depth with [he lowest,
valid,
energy was used.
CROSS SECTION OUTPUT PrOfile #500 year
x�as�+i��.a�t�.:+t�::�xitt�:�t�i�t�rx+r�r:x�x�+++�t�xa++.�*�.t:�+++k��t�*t�r�i��ir++rMr�;a+e�w•
• E.G. Elev (ft) ' 4816.02 " Element * Left OB • Channel ' Right OB '
• Vel Head (ft) ' 0.4� * Wt. n-Val. * 0.100 " 0.040 * 0.070 •
• W.S. Elev (ft) ' 4815.55 ' Reach Len. (ft) * 112.00 * 112.00 * 112.00 *
• Crit W.S. (ft) 3 4811.69 * Flow Area (sq ft) *11164.44 * 2559.13 ' 712.27 t
* E.G. Slope (ft/EU •0.001563 * Area (sq ft) �11164.44 * �559.13 * 9184.01 *
• Q Total (cfsl '41960.00 " Flow (cfsl *19639 JB �19773.90 � 2546.32 *
• Top Width (fU • 5147.39 • Top Width (ft) * 2149.00 * 271.00 • 2787.39 *
� Vel Total (ft/s) * 2.91 * Avg. Vel. (ft/s) * 1.�6 • 7.73 * 3.57 '
' Max Chl Dpth (ft) * 13.00 * Hydr. Depth (ftI * 5.20 * 12.13 • 8 J9 "
t Conv. Total (cfs) '1061406.0 ' Conv. (cfs) "496801.4 •500194.0 ' 64410.� •
* Length Wtd. (ft) * 112.00 * Wetted Per. (ft) • 2154.32 * 272.04 * 61.01 *
* Min Ch E1 (ft) ' 4802.55 * Sheai (lb/sq fU * 0.51 * 1.18 * 0.86 '
* Alpha ` 3.59 * Stream Power (lb/ft s) * O.B9 � 9.10 * 3.07 *
* Frctn Loss (fU ' • Cum Volume (acre-ft) * 653.74 ` 144.12 • 401.59 *
t C & E Loss (ft) * ' Cum SA (acres) * 166.26 r 14.46 t 136.36 3
.+..........:..x...+..x:::::::...ax...,,..+...++...+..w.....x.......w....x:.....+...+�+......++
Note: Multiple critical depths wexe found at this location. The critical depth with the lowest,
valid,
e�ergy was used.
�
CROSS SECTION OUTPUT Pro£ile q10 yeaY
R�xrR...«i..*�«x.w.r«.,w,i�ia+�.kxr�+.:+:t�.rir.�R:xx�.:....x+::�::«aF++��a.�r��:�x..:�tt...:«
* E.G. Elev (ft) ' 4809.92 * Element • Left OB * Channel * Right OB �
� Vel Nead (ft) ' 0.24 * Wt. n-Val. * 0.100 * 0.040 * 0.070 rt
' W.S. Elev (ft) " 4809.68 ' ReaCh Len. (fU * 112.00 ' 112.00 ' 112.00 *
* Crit W.S. (fU " 4806.20 " Flow Area (sq fU � 342.38 ' 1320.84 * 236.91 '
i E.G. Slope (ft/fU '0.001056 * Area (sq ft) * 2084 J2 * 1320.84 * 1273.30 •
* Q TOCal (cfs) • 5950.00 • Flow (Cfs) ' 218.05 * 5397.76 ' 334.20 "
' Top Width (ft) ' 2293.53 • Top Width (ft) * 1295.4^. * 211.00 ' 787.09 ^
• Vel Total (ft/s) * 3.13 * Avg. Vel. (ft/s) t 0.64 * 4.09 * 1.41 +
• Max Chl Dpth (ft) ` 7.13 * Hydr. Depth (ft) * 1.51 * 6.26 * 2.92 •
* Conv. Total (cfs) *183108.0 * Conv. (cfs) • 6710.2 *166113.0 ' 10284.8 *
` Length Wtd. (ft) * 112.00 * Wetted Pei. (ft) ` 226.02 * 212.04 • 81.01 *
* Min Ch E1 (fU • 4802.55 • Shear (lb/sq ft) ' o.lo • 0.41 * 0.19 •
* Alpha ' 1.% • Stream Power (lb/ft s) � 0.06 t 1.68 * 0.2� *
• Frctn Loss (ft) * • Cum Volume (acTe-£U ' 97.64 * 81.19 * 53.52 *
* C & E Loss (ft) " * Cum SA (aciesl ` 89.�� ' 14.21 * 33.28 '
:�t:tF�r�Rx..:::r+��Hiwx:�:t..:W�Rw�.:r.�a.i:�F�ti:+F<t*t+r�*<i�R:+�+:�:��e*•.r�r��rr.t+xs+��+♦
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile q50 year
F4##fY1f�lik#4ifi1A11xTf#tf441�lw+#t#fAxii#Ff#14F1Y�i�iFf1#11Fi14Rf1f11IAklklY#1fiflRk#f1h##�fM
* E.G. Elev (fU * 4812.16 • Element * Left OH * Channel • Right OB t
* vel Head (£U * 0.12 • Wt. n-Val. * 0.1�0 • 0.040 * 0.070 *
� W.S. Elev (ft) ' 4812.01 * Reach Len. (ft) * 112.00 � 112.00 * 112.00 *
k Crit W.S. (ft) ' 4808.54 ' Flow Area (sq ft) * A54.19 * 1813.52 * 426.05 k
t E.G. Slope (ft/fU '�.000666 * Area (sq fU * 5154.19 * 1813.52 * 3430.46 *
* Q To[al (cfs) '12850.00 � Flow (cfs) R 4420.50 • 6594.26 * 640.15 *
* Top Width (fU ' 2562.29 • Top Width (ft) ` 1334.88 * 211.00 t 1016.41 *
* Vel Total (ft/s) t 1.58 • Av9. Vel. (ft/s) ` 0.86 ' 3.64 * 1.50 *
" Max Chl Opth (fU R 9.46 • Hydr. Depth (ft) * 3.86 + 8.59 • 5.26 •
' Conv. Total (cfs) '497964.2 * Conv. (cfs) •188B68.B '281744.5 * 2�351.0 *
� * Length Wtd. Ift) ' 112.D0 * Wetted Per. (ft) ' 3337.33 � 212.04 • 81.01 •
Page 7�
STVRAIN.rep
� Min Ch E1 (f[) � 9802.55 " Shear (lb/sq ft) a 0.16 * 0.36 � C.22 * �
�� * A1pha * 3.17 * Stream Power (lb/ft s) * 0.14 + 1.29 * 0.33 w
r Frc[n Loss (ft) * 0.16 t Cum Volume (acre-fU • 231.20 * 301.40 * 103.65 a
• C s E Loss (fU + 0.35 • Cum SA (acres) + 96.32 � 14.66 * 37.93 '
R*iThhliilMlltftihvffiMkkittFM41Yi!#AxAfilkYtYfKiM4+k#tiii4#ff11h#4k�4#ilxlti4�Flki+f4MARIhik#k
Warning: Divided flow compu[ed for this cross-section.
Warning: The velocity head has changed 6y more than 0.5 ft (0.15 m) . This may indicate the need for
addi[ional cross sections.
warning: The conveyance ratio Iups[ream conveyance divided by downstream conveyance) is less than
0.� or greater than 1.4. This may indiCate ihe need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical dep[h with the lowest,
valid,
energy was used.
BRIDGE
RNER: St. Vrain River
REACH: FULL RIVER RS: 56400
INPUT
Desciiption: Bridqe at WCR13
Distance from Upstream XS = 112
Deck/Roadway Wid[h = 65
Weir Coefficient = 2.7
❑pstream Oeck/Roadway Coordinates
num= 22
*#*»{Sta*Ha�;�o*d'*o**ozdµ**}yS*a,H**�o'd'*o*�co�rd*****S�ta*yi**o*d**o`Co*d
1280 4820 4800 1673 4B20 4800 1759 Y* 4820 4800
� 1955 4816 4800 21]4 4812 4800 2591 4811 4800
2991 4812 4800 3146 4814 4800 3290 4817 4800
3465 4820 4800 3466 4820 4814.4 3664 4820 4814.4
3655 4820 4800 3865 4818 4800 4065 4817 4800
4465 481"/ 4800 4865 401"/ 4800 5265 4817 4800
5665 4817 4800 6065 481� 4800 �127 4817 4800
']132 4817 4800
Upstream Bridge Cross Section Data
Station Elevation �a[a num= 50
S[a Elev Sta Elev Sta Elev Sta Elev Sta Elev
:.r*�kxri��t+:..+..:.R<r+�ix:x.r�ta�t:rrw�rr»:t..�s*�+a��w�irr�+.,rw�.�t�.tw«iF
1280 4815 1300 4813 13'/3 4811.5 159� 4830.5 1805 4810
2022 4810 202� 4810 2044 4814 2059 4814 2083 4813.5
2169 4807 2192 4807.3 2395 4806 2423 4806 2474 4806.8
2594 4806.9 2732 4806.5 2766 4806.5 2820 4808.5 289'1 48�8.5
2938 4804.5 3134 4801 334'] 480� 3429 4809.5 3451 4803.55
3549 4802.55 3614 4802.55 3640 4806.15 3687 4807 3721 4807
3873 4808.5 3951 480'].7 9020 4807.5 4043 4807.7 4248 4808.5
4552 4810.5 4690 4812.5 4968 4813.5 5169 4814.7 5402 4815.9
5675 4816.9 5917 4821 6029 4816.15 6050 4814.75 6076 4814.75
6237 4814.45 6441 4815.35 6696 4814.65 6920 4613.85 7132 4814.95
Manning�s n Values num= 3
Sta n Val Sta n Val Sta n Val
++�+.+++....+.::.+...::«.+...+.:..............+.
1280 .1 3429 .04 3640 .07
Bank Sta: Left Right Coe£f Con[r. E�cpan.
3429 3640 .3 .S
Ineffective Flow num= 2
Sta L Sta R Elev permanent
1280 3203 9811 F
3721 7132 4817 F
Hlocked Obstructions num= 3
S[a L S[a R Elev Sta L Sta R Elev Sta L Sta R Elev
+�:.wr�.i�:«,r+t+wt,��«i��w��..xwiwW.ae�*:rrxi+i:r,��..*w+�:�x«:+K.ai.��,:
Page 78
STVRAIN.rep
1280 2027 4014 2044 3429 4808 4248 4815 4808.5
Downstream Deck/Roadway Coordinates
num= 21
Sta Hi COYd Lo Cord Sta Hi Cord Lo COYd Sta Hi COLd Lo COYd
Ai+ft*#k+1#3hiIf4F#1£}!tllfiiYFliYMRf11i#i+ftfilkkAti+;i##1ki##*1f#i#11i
16�3 4820 4800 1759 4820 4800 1955 4816 4800
2174 4812 4800 2591 4811 4800 2991 4812 4800
3146 4814 4800 3290 4817 4800 3465 4820 4800
3466 4820 4014.4 3664 4820 4814.4 3665 4820 4800
3865 4818 4800 4065 4817 4800 4465 4817 4800
4865 4817 4600 5265 4817 4800 5665 4817 4800
6065 4817 4800 7127 4817 4800 7132 4817 4800
Downstzeam Bridge Cmss Sec[ion Data
StatiOn Elevation Da[a num= 21
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
iY#kxxlRRi4i+ltfMttFtkki*YiFlX1Ri*14##1hiflt#i4r#YrtRFlff#1*!11*!#k#4tx#YYf11RMi#
1673 4818 2074 4810 2540 4810 2��5 4810 3202 4811
3337 4811 3465 4811 3466 4804.05 3500 4802.15 3590 4802.15
3664 4802:15 3665 4809 3666 4810 3755 4810 4234 4810
4716 4810.65 4914 4812.05 5567 4813.55 6205 4814.45 6900 4814.85
7127 4816.85
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
«.<+..+..x:>..::xxx+.++..•+.:.:...w.+..::....+x.
16�3 .04 3465 .04 3665 .07
Hank Sta: Lef[ Right Coeff Con[r. Expan.
3465 3665 .3 .5
Ineffective Flaw num= 1
Sta L Sta R Elev Pezmanent
3665 7127 481� F
Upstream Embankmen[ side slope = 2.� horiz. to 1.0 vertical
Downstream EmbankmenG side slope = 3.2 horiz. to 1.0 vertical
} Maximum allowable submergence foz weir flow = .95
Elevation a[ which weiz flow begins = 4811
Energy head used in spillway design =
Spillway height used in design � _
Weir crest shape = Broad Crested
Number of Piers = 2
Pier Data
Pier Station Upstream= 3525 Downstream= 3525
Opstream num= 2
Width Elev Width Elev
....:.++xk:.......x.++.+.xxw.+.+.
4 4800 4 4814.45
Downstream num= �
Width Elev Width Elev
....a�:.+x......+..+.....:+..:..
4 4800 4 4814.45
Pier ➢ata
Pier Station Ups[ream= 3602 Downstream= 3602
Upstream num= 2
Width Elev Widih Elev
#a*'.!vl1�4₹+MY:'.l+1#4hAti44kR1:k441fRF
4 48�0 4 4814.45
Downstream num= �
Width Elev Width Elev
+:++.ex�...+..*+:.+Rx+..+.x:...x.
4 4800 4 4814.45
Number of Hridge Coefficient Sets = 1
Low Flow Methods and Data
Energy
Moment�m Cd = Z
Selected Low Flow Methods = Highest Energy Answer
Page 79
STVRAIN.rep
High Flow Method
. Pressuie and Weir flow
Submerged Inlet Cd =
Submerged Inlet . Ou[let Cd =.8006408
MaX Low Cord = 4814.4
Additio�al 6ridge Parameters
Add Friction camponen[ to Momentum
Do not add Weight component to Momentum
Class e flow critical depth computations use critical depth
i�side the bridge at the upstream end
Criteria to check for pressure flow = Upstream energy grade line
HRIDGE OUTPUT Profile #100 year
i;ttTiFtAi�.lT'ifY:*YYkfltl+xk+tikFtk4iY�tft+ii+a}YAF*k+##Y+i1+f+t#Tft;wfkTR�.F#M#4#iRi#4t4iitil;rttl
* E.G. US. (fU • 4813.03 ` Elemerlt �Inside BR US *Inside BA DS *
* W.S. US. (fU ` 4812.86 * E.G. Elev (ft) * 4812.63 '� 481z.28 *
' Q To[al (cfs) * 16700.00 * W.S. Elev (ft) • 4811.56 * 4811.50 *
* p Hridge (cfs) * 123�3.06 * Crit W.S. (ft) + 4809.80 * 4B0B.56 � .
* Q weir (cfs) * 4326.94 "' Max Chl Dpth If[� + 9.01 * 9.35 *
* Weir Sta Lft (ft) * 2117.41 * Vel Total (ft/s) ' 8.00 * 7.07 *
' WeiY Sta Rgt (ft) • 3071.11 * Flow Area (sq ft) ' 1545.99 * 1749.40 +
• weir Submerg * o.00 + Froude !t Chl • 0.50 * 0.41 *
+ Weir Max Depth (Et) R 2.03 * Specif Force (cu ft) ' 9590.16 • 10760.69 *
* Min E1 Weir F1ow (ft) • 4811.01 * Hydr Depth (ft) * 8.12 * 9.19 "
' Min E1 Prs (fU * 4814.40 + W.P. Total (Et) * 240.29 * 244.34 *
* Delta EG (fU * 1.0'/ * Conv. Total (cfsl � 195130.5 * 241406.8 •
* Delta WS (ft) * 2.36 * Top Width (ft) � 190.39 " 190.40 •
* BR Open Area (sq fU * 2085.26 ` Prctn Loss (fU * 0.21 * 0.30 *
* BR Open Vel (ft/s) * 8.00 * C 6 E Loss (ft) • 0.14 * 0.21 *
* Coef of Q R * Shear Total (lb/sq ft) * 2.94 * 2.14 *
* Br Sel Method •Energy/Weir * Power Total (lb/ft s) * 23.55 * 75.13 �
.:...+:..:....+..++..+...+«+...+:.+.a.....a...�++....+.xx....+.:.....,.:...+t+.+.w...a......x.
Note: Momentum answer is �ot valid iE the water surface is a6ove the low cnord or if there is weir
flow. The momentum answer has been disregarded.
Note: Multiple critical depths were found at this� location. The critical depth with the lowest,
. . �� valid,
enerqy was used.
Note: Notes(60� : This is an inside cross section of a perched bridge [hat has energy, low flow inside
of the bridge and weir flow ovex the embankment. The reported hydraulics are based on the
flow and area inside of the bridge.
warning: The velocity head has changed by more than o-5 ft (o.ls m) . This may indicate the need for
additional cross sections.
Note: Multiple critical depths were found at this loca[ion. The critical depth with the lowest,
valid,
energy was used.
Note: Notes(6o) : This is an inside cross section of a perched bridge that has energy, low flow inside
of the bridge and weir flow over the embankment. The reported hydraulics are based on the
flow and area inside of the bridge.
HRIDGE OUTPUT Pzo£ile #500 year
�3�xxr.�n.x+r+xk�+tt:xxx�:Rwxwx.Kxxx.k.����w+«it+t�::::s++xswx::xrRx�t�a�t+�x»xrxxr���xi��:::
* E.G. U5. (ft) * 4816.02 * Element *Inside BR US *Inside BR DS *
• W.S. U5. (ft) * 4815.55 ' E.G. Elev (f[) * 4816.02 • 4815.72 *
' Q Total (cfs) * 41960.00 * W.S. Elev (ft) + 4815.55 * 4814.48 *
• Q Biidge (Cfs) ' 16701.72 * CYit W.S. (ft) * 4815.04 * 4814.40 *
* Q Weir (cfs) * 25258.28 * Max Chl Dpth (ft) * 13.00 t 12.33 *
'" Weir Sta Lf[ (ft) t 1954.12 � Vel Total (ft/s) * 6.78 ' 8.16 •
* Weir Sta Rgt (ft) * 3242.89 + Flow Area (sq fU * 6188.16 * 5142.49 t
* Weir Submerg * 0.32 * Proude # Chl * 0.34 * 0.41 *
* Weir Max Depth (ft) * 5.02 + Specif Porce (cu ft) * 33678.25 * 29340.20 *
* Min E1 Weiz Flow (ft) ` 48ll.01 • Hydr �epth (ft) * 4.99 * 4.55 *
� ` Min El Prs (fU * 4814.40 * w.P. Total (tt) * 1687.83 * 1582.93 *
* Delta EG (ft) t 1.70 ' CoRv. Total (Cfs) * + *
* Delta WS (ft) + 2.35 * 'Pop Width (ft) * 124�.44 * 1131.12 *
" BA Open Area (sq ft) + 2085.28 * Frctn Loss (ft) * * E
� HR Open Vel (ft/s) t 8.01 * C 5 E Loss (ft) • + *
* Coef of 4 * + Shear Total (lb/sq ft) * * +
R Br Sel Method • Press/Weir � Power Total (lb/ft s) ' * •
..:......+«..«:::.....xr.++«.....«w.....r..x++..«+.:xxxx.xx.x...:.«.+.+.......++.,x«xxx.:...:
Page 80
STVRAIN.rep
Note: Momentum answer is not valid if the water surface is above the low chord or if there is weir
. flow. The momentum answer has been disregazded.
Note: The downstzeam water surface is below the minimum elevation for pressure flow. The sluice
gate equations were used for pressuze flow.
Note: For the cross section inside the bridge at the upstream end, the wa[er surface and energy have
been projected from�ihe upstream cross section. The selected bridge modeling method does
not wmpute answers inside the bridge.
Note: Multiple critical depChs were found at this location. The critical depth with the lowest,
valid,
energy was used.
Note: For the cross section inside the bridge at the downstream end, [he water surface and energy
are based on critical depth over the weir.
Note: Multiple critical dep[hs were found at this location. The critical depth with the lowest,
valid,
ener9y was used.
BRIDGE OUTPllT Pro£ile H10 yeaZ
...x.......«x.x:....:+..x:.....•..:+...:..:.+..:x+.+..x.+.r++..w.«.a::.w+x:+..�.+.:
`'E+G;�OS* (f[) ' 4809.92 ' Element 'Inside BR US {Inside BR DS ` .
+ W.S. U5. (ft) * 4809.68 * E.G. Elev (ft) * 4809.82 * 4808.66 *
+ Q Total (cfs) * 5950.00 * W.S. Ele� (ft) + 4809.36 + 4808.23 *
* Q Bridge (cfs) * 5950.00 * Crit W.S. (ft) R 4806.50 * 4805.47 *
• Q Weir (cfs) * W Max Chl Dpth (ft) 6.81 + 6.08 *
t Weir Sta Lft (fU * � Vel Total (Et/s) 5.28 * S.Z9
* Weir Sta Rgt (ft) * � Plow Area (sq ft) * 1126.47 * 1125�.66
* Weir Submerg • � Fraude # Chl + 0.38 R 0.38 *
* Weir MaX Dep[h (ft) * ` SpeCif Force (cu ft) 4490.07 4315.70 *
* Min E1 Weir Flow (ft) F 4811.01 * Hydr ➢epth (ft) * 5.91 * 5.90 *
* Min E1 Prs (fU * 4814.40 * W.P. Total (ft) ` Z2�.�� i Z24'�0 *
• ➢elta EG (ft) ' 1.32 ' Conv. Total Icfs) * 121538.5 122428.2 *
' Delta WS (ft) * 1.48 * Top Width (ft1 * 190.70 f 190.86 {
� BR Open Azea (sq ft) ' 2085.28 * Frctn Loss (£t) *
+ BR Open Vel (ft/sI * 5.29 * C 6 E Loss (ft) y *
* Coef of Q * • Shear Total (lb/sq ft) y o,�4 Y o��4 *
Br Sel Method * Momentum Power Total (lb/ft sJ 3.92 3.90
;tfY��i4tftkY+Ft4FtilixtfFlt4#At4#I�k4xt4R#i+*Ffii4�#ti�tiiiki##Aff4iff##f1+1RI#4ii!!l44x*+f♦
.� Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
Note: Multiple czitical depths were found at this location_ The critical depth with the lowes[,
valid,
energy was used.
BRIDGE OUTPUT PYofile #SO year *#R+* ikrii�+r.t++++r«��+RR*i*x+**�t*+**R++t++*x�+*+x�++
�*E*G**US+*(ft)'*;Y*;;;**`****4812*16 ' ElemenC *Inside BA US �Inside HR OS ;
* W.S. US. (fU * 4812.01 * E.G. Elev (ft) e 4811.66 * 4811.18
12850.00 • W.S. Elev (ft) 4010.36 4810.25 x
* Q TOCal (cfs) ` . y8�g,�7 • 4807.55 •
• Q Hridge (<fs) ' 11654.97 ' Crit w.S. (ft) i �.81 * 8.10 *
� Q Weir (cfs) * 1195.09 * Max Chl Dpth (ft) ` ^
* Weir S[a Lft (ft) � 2165.13 � Vel Total (£t/s) 9.85 * ���1 y
3003.56 * Flow Area (sq ft) ' 1316.54 1512.40
' WeiY Sta Rgt (ft) * i 0.59 ' 0.48 *
* Weir Submerg * 0.00 * Froude p Chl * *
1.16 ' S ecif Force (cu ft) 7999.80 8803.15 *
R Weir Max Depth (ft) * p . 6.91 * ��94 `
* Min E1 Weir Flow (ft) 4811.01 w Hydz Depth (ft) y33.06 * 236.87 *
* Min E1 Prs (ft) * 4614.40 * W�p� Total (ft) i x 193360.9 *
* Delta EG (ft) * 1.16 * Conv. Total (c£s) a 153498.� '
z,15 � Top Width (f[) 190.56 190.58 *
* Delta WS (ft) ' , p yy + p.il *
* BR Open Area (sq ft) * 2085.28 • Frctn Loss (ft) * *
8.85 * C & E Loss (ft) 0.19 t 0_06
• BR Open Vel (ft/5) * Z y� • 1.76 �
* Coef of Q * ' Sheaz Total (lb/sq fU {
k *Ener Weir Power Total (lb/ft s) 21.88 13.57
Br Sel Method 4Y�
kiMxi+x144+f4Ixfkl�it+t4h1+1�s#+4F1t41ff4£Ii#1i#xt#114i#44Yw#4ixf4Yxl11fi1#r�R#x#4t14R1xktYf•
Note: Momentum answer is not valid if the water suzface is above the low chord or if there is weiz
flow. The momentum anawer has been disregarded.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
Note: Notes(601 : This is an inside cross section of a perched bridge that has energy, low flow inside
of the bridge and weir flow over the embankment. The reported hydraulics are based on the
� flow and area inside o£ the bridge.
Page 81
STVRAIN.rep
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
energy was used.
Note: Notes(6o) : This is an inside cross section of a perched bridge that has energy, low flow inside
o£ the bridge and weir flow over the embankment. The reported hydraulics are based on the
flow and area inside of the bridge.
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 56290
INPUT
Description: COUNTY ROAD 13 (NEW HRIDGE)
The mannings value for the left
over-bank section of [his cross-section has been lowered so that
the weir flow over the bridge is within 10-200 of the left
overbank flow for this cross-section.
Station Elevation Data num= 21
S[a Elev Sta Elev Sta Elev Sta Elev Sta Elev
*+�ii�:.*+t�:x:a.ri..rx.wit�:«�x.�rtaf�xxw�a+��xxKxit:::wr�+�:xwx�t+x�w.+iir+x�x
1673 4818 2074 4810 2540 4810 2775 4810 3202 4811
3337 4811 3465 4811 3466 48�4.05 3500 4802.15 3590 4802.15
3664 4802-15 3665 4809 3666 4810 3755 4810 4234 4810
4716 4810.65 4914 4812.05 5567 4813.55 6205 4814.45 6900 4814.85
7127 4816.85
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val .
:..:::.«x=::..+.:.+:t.<.++<..:...+...+.:x.+....:
1673 .04 3965 .04 3665 .07
Bank Sta: LefC Righ[ Lengths: Lef[ Channel Aight Coeff Contz. Espan.
3465 3665 7�0 960 ll65 .3 .5
Ineffective Flow num= 1
� Sta L Sta R Elev Permanent �
� 3665 �127 4817 F
CROSS SECTION OUTPUT Piofile q100 year
.+.++.:...:::x.x�.x..:a..x+�:.::x.x�......:«+..t«,xx..w..::,......�:.xx..a.s....a....�w.....t.•
• E.G. Elev (ft) k 4811.96 * Element * Left OB * Channel * Right OH *
� Vel Head (ft) * 1.46 * Wt. n-Val. • 0.040 � 0.040 * *
' W.S. Elev (ft) * 4810.50 • Reach Len. (ft) • 770.00 + 960.00 * 1165.00 *
' Crit W.5. (ft) * 4808.36 • Flow Area (sq ft) * 410.14 * 1628.94 • +
* E.G. Slope (ft/ft) *0.004655 * Area (sq fU * 410.14 * 1628.94 x 377 J1 �
* Q To[al (cfs) *16�00.00 < Flow (cfs) + 598.18 *16101.82 • *
* Top Width (ft) • 2099.32 * Top Width (fL) * 939.56 * 199.93 • 939.82 *
* Vel Total (ft/s) > 8.19 � Avg. Vel. (ft/5) * 1.46 ` 9.88 * +
' Max Chl Dpth (ft) • 8.35 * Hydr. Depth (fU * 0.44 * 8.15 * *
' Conv. Total (cfs) •244768_6 * Conv. (cfs) � 8767.4 '236001.2 * +
' Length Wtd. (ft) • 897.81 * Wetted Per. (ft) t 939.57 * 2ll.49 * i
* Min Ch E1 (ft) • 4802.15 * Shear (lb/sq ft) * 0.13 * 2.24 * +
• Alpha * 1.41 * Stream Power (lb/ft s) * 0.19 * 22.13 * +
* Frctn Loss (ft) * 2.08 * Cum Volume (acre-ft) * 293.65 * 101.84 + 124.67 *
* C & E Loss (ft) � 0.63 � Cum SA (acres) < 144.0� * 13.91 * 98.05 �
♦w.��+.::xxRrrxr::..++<it::w.e�.e+�«.�xr.�+t+tt..x++i++a+�w..rt:.�r+�Fafiw.+�t�wwi�+���xx��:xxRr
Warning: Divided flow computed for this cross-section.
wazning: The velocity head has changed by moze than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided hy downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was greater than 1.0 f[ (0.3 m) . between the curren[ and previous cross
section. This may indicate the need for additional cross sections.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #500 year
it4tfxlt##4Yt4�iTfRtxArt4YY4{xR##4#i+#iF1ThYiii;*t#*f#4i4tlx#iY4i4Mk1#f111�k#f114kk*111Y#wFIlif!
* E.G. Elev (ftl * 4814.32 * Element • Left OB * Channel * Right OB t
, * Vel Head (fU * 1.12 * Wt. n-Val. F 0.040 * 0.040 � *
Page 82
STVRAIN.rep
I � W.S. Elev (ft) * 4813.20 * Reach Len. (ft) ' 770.00 ' 960.00 * 1165.00 *
. x Cri[ W.S. (fU ' 4812.91 ' Flow Area Isq ftl * 4231.64 * 2168.96
* E.G. Slope (ft/ft) '0.003735 * Area (sq fU * 4231.64 * 2168.96 * 3861.71 *
� Q Total (cfsl *41960.00 * Flow (Cfs) '18753.97 *23206.03 � � i
� Top Width (ft) * 3501.21 * Top Width (fU ` 1551.41 * 200.00 ' 1949.80 *
� Vel Total (f[/s) ' 6.56 * Avg. Vel. (ft/s) ' 9.43 * 10.70 •
R Max Chl Dpth (fU ' 11.05 ' Hydr. Depth (fU ' 2.73 � 10.84 " *
• Conv. To[al (cfs) *686597.1 * Conv. (cfs) •306873.7 �379723.3 *
* Length Wcd. (fU * 861.38 ' Wetted Per. (fU * 1551.44 + 212.00 * *
* Min Ch E1 (fU * 4802.15 " Sheaz (lb/sq ft) " 0.64 2.39
t Alpha * 1.68 ` Stream Power (lb/ft s) ' Z.82 " 25.52 * *
* FYCtn Loss (ft) ' 2.12 * Cum Volume (aCYe-£t) • 626.57 ' 133.�8 ' 388.10
* C & E Loss (fU ' 0.42 * Cum SA (aCIes) k 159.24 * 14.12 ' 132.19 "
4Ti4Fik#%t+�tt+R1i#fii#1YMM#fiF4ItFlYillilll�Ii4lkfi##fltil#i114+Fi!£RRfiRllkiWlRlk4ik1k1YftM}f
�Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: She ener9y loss was greater than 1.0 f[ (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
ener9y was used.
CROSS SECTION OUTPUT Profile $10 year .
..,.....+..+.++.�.+..+.+...�+a..x,.++:.......+.r..+..w.+...�.++.::
�*E G+*Elev*(f[I't*Y+*e*k*+4808.60 • Element ' Left OH t Channel • Right OB *
* Vel Head (ftl • 0.40 ' WC. n-Val. • • 0.040 • *
* W.5. Elev (fU • 4808.20 � Reach Len. (ft) * 770.00 * 960.00 * 1165.00 *
* Crit W.S. (ft) * 4805.35 ' Flow Area (sq ft) * • 1168.99 ; *
� E.G. Slope (ft/ftl "0.OO1B83 * Area (sq fU * E 1768.99 R #
* Q Total (cfsl • 5950.00 * Flow Icfsl R * 5950.00 *
� Top Width (E[) ' 199.48 ' Top Width (Et) ' ; 199.48 ;
* Vel Total IPt/s) * 5.09 ' Avg. Vel. (ft/sl • 5.09 *
* Max Chl Dpth (ft) • 6.05 ' Hydr. ➢epth (ft) • ` 5.86 * *
� ' Conv. Total (cfs) ,137114.3 * Conv. (cfs) { *737114.3 ^ *
� Leng[h w[d. (ft) 919.65 ' Wetted Per. (ft) * * 208.35
* Min Ch E1 Ift) ' 4802.15 * Shear (lb/sq ft) 0.66
• Alpha * 1.00 * Stream Power (lb/EC s1 w ; 3.36 � T
• Frctn Loss (fU • 1.17 ' Cum Volume (acre-ft) 94.96 75.73 51.74
� k C & E Loss (fU * 0.14 • Cum SA (acres) ' 88.10 * 13.33 ' 32.22 *
ti#ffi��k4*Rftt4k1t4kF+it4k##k+1}fi+lttk#f�k#kk##il�iili}iii#Ati4xt4iirtMf�ifiif#4tFt#iY1k+YFhxF£
Warning: The co�veyance ratio lupstream conveyance divided by downstream conveyance) is less than
0.7 or greater than l.a. This may indicate the need for additional cross sections.
Warning: The energy loss was 9reater than 1.0 ft 10.3 m) . between the current and previous cross
sec[ion. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Pmfile q50 year
1YlfF+11ft4AtR4#fF4t#+f#1+�t4iftiXF4#hlfY4itY1111ii#ltfii*ftYt+i�+i+h#fYYl44#fl4hif4#ilfx
*+E+G{ Elev Ift) ' 4811.00 * Element * Left OB + Channel * eight OB *
• vel Head (ft) * 1.14 ' Wt. n-Val. * ; 0.040 k
t W.S. Elev �ft) + 4809.8] * Reach Len. (fU ' ���.00 960.00 ; 1165.00 +
' Crit W.S. (fU ' 4807.40 * Flow Area (sq ft) * * 1502.35 * i
" E.G. Slope (Et/£t) "0.00386� * Area (sq fU + ' 1502.35 0-38 *
+ Q To[al (cfs) *12850.00 * Flow (c£s) k �72850.00 + *
+ Top Widih (fU * 200 JO ` Top Width (fU { * 199.84 * 0.8� *
* Vel Total (ft/5) * 8.55 * Avg. Vel. (ft/SI 8.55 ; `
* Max Chl Dpth (ft) ' �.72 • Hydr. Depth (ft) * � ��Sz *
* Conv. Total (Cfs) *206650.3 * Conv. (C£s) t206650.3 * *
� Length Wtd. (ft) ' 905.12 � Wetted Pex. (ft) * y 210.85 x R
* Min Ch E1 (ft) * 4802.15 ^ Shear (lb/sq ft) ' * ��72 *
* Alpha * 1.00 * Stream Power (lb/ft s) { x 14.71 * *
* Frctn Loss (ft) ` 1.86 • Cum Volume (acre-fU 224.57 ; 94.46 99.04 ;
* C s E Loss (ft) * 0.48 " Cum SA (acres) • 94.61 13.78 * 36.58
lSlxtiYltfkAttlw�txlRtfw+kkir�tiA�#iIAR�!#4Y1Ri5ifi#f1i#f�F#1R441f44xR+4R11#*1xFi#MRt#iix###Is•
Warning: The velocity head has changed by more than 0.5 ft (o.ls m) . This may indicate the need for
additional cross sectio�s.
� Warning: The conveyance ratio (upstream conveyance divided hy downstream conveyance) is less than
Page 83
STVRAIN.rep
0.7 or greater than 1.4. This may iadicate the need for additional cross sections.
warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple cri[ical depths weze found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION
RIVER: S[. Vrain River
REACH: FULL RIVER RS: 55330
INPUT
�escription: The topographic information for this cross-secCion was taken from
[he ACOE HEC model.
Station Elevation Oata num= 69
Sta Elev Sta Elev S[a Elev Sta Elev Sta Elev
+....+.:x.x....x«....w.x.+.x.:.r..�.:u+....:.+...:....+.a�x..i...�.+...+x.x+.....:x
1290 4819.05 1290.1 4819.05 1329 4818.15 1354 4818.15 1406 4805.05
1480 4805.05 � 1499 4810.55 1515 4810.55 1523 4814.55 1552 4802.85
1685 48�2.85 1717 4810.45 17R 4807.75 1767 4807.75 1823 4812.15
190"1 4810.�5 1941 4812.65 2040 4806.65 2382 4804.95 2648 4804.95
2671 4807.95 2704 4808.55 2736 4902.65 2777 4804.25 2876 4805.05
2890 4802.25 2897 4805.05 3138 4805.35 3227 4811.25 3317 4811.85
3382 4807.85 3424 4805.95 3476 4805.95 3481 480'].85 3493 4806.75
3534 4806.15 3600 4805.35 3614 4808.75 3635 4801.15 3657 4799.75
3731 4799.'15 3"150 4801.65 3773 4810.05 3799 4806.15 3903 4806.05
4127 4804.15 4146 4802.65 4166 4804.25 4293 4805.65 4596 4806.35
4878 4605.65 4929 4604.25 4952 4805.25 5227 4806.45 5299 4808.75
5584 4813.15 5748 4813.45 6013 4814.15 6329 4814.25 6338 4915.65
6360 4812.35 6370 4814-25 6398 4814.25 6412 4812.35 6423 4814.05
6643 4812.95 6828 4812.35 "]075 48ll.25 7264 4811.15
Manning's n Values num= 3
Sta n Val Sta n Val Sta n val
+..+++.....+...+.+.:k.+..+......«.«:....:..+.+..
� 1290 .07 3614 .04 3773 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Con[r. Ezpan.
3614 3773 890 1360 1550 .3 .5
Ineffective Flaw num= 1
SGa L Sta R Elev Pennanent
4473 '/264 4817 F
Blocked Obstructions num= 3
Sta L Sta R Elev Sta L Sta R Elev Sta L Sta R Elev
#tlfTitYY4klfi#1if:'.l1Yi*FYh11+4i1f1:#f1Ylii#+xw#+#nR*#11fi#*f1!#!1#i#Y#t4�.!
3�"I3 5584 4809 6643 �264 4812.95 1329 322"1 4805
CROSS SECTION OUTPUT Profile #100 year
#'kftitl;i%**4tf�h4Aiit£tf#ik4Ttk#*i'Filt+;�Y�.lrti+#4#4tix##kitt�n*#i#iif[fR+*t##�f�.Fi�lf#SRF+rti4M1F#nY
' E.G. Elev (ft) * 4809.25 > Element ' Left OB * Channel " Right OB *
' Vel Head (ft) � 0.20 ' Wt. n-Val. * 0.070 * D.04� * 0.070 *
* W.S. Elev (fU * 4809.05 � Reach Len. (ft) t 890.00 * 1360.00 + 1550.00 +
' Crit W.S. Ift) * 4807.29 * Flow Area (sq ft) * 5852.56 * 1197.40 * 35.88 *
* E.G. Slope (ft/fU �0.001384 * Area (sq ft) * 5852.56 * 1197.40 * 79.55 •
* p Total (cfs) � •16700.00 * Plow (cfs) �10338.70 * 6357.36 * 3.93 r
" Top Width (ft) * 3481.39 * Top Width (ft) * 1786.23 * 156.27 * 1538.89 *
* Vel To[al (ft/5) * 2.36 * Avg. Vel. (ft/S) * 1.77 * 5.31 * 0.11 •
* Max Chl Dp[h (ft) • 9.30 * Hydr. Depth (ft) * 3.28 * 7.66 * 0.05 *
* Conv. Total (cfs) w448834.9 t Conv. (cfs) *277866.4 *170862.5 * 105.8 �
* Leng[h Wtd. (ft) * 1122.85 • We[ted Per. (ft) • 1790.34 * 159.05 * 693.35 *
* Min Ch El (fU ' 4799.75 * Shear (lb/sq tt) * 0.28 ` 0.65 * 0.00 *
* Alpha t 2.28 * Stream Power (lb/ft s) * 0.50 • 3.45 * 0.00 *
* Fic[n Loss (ft) * 1.18 * Cum Volume (acre-ft) * 238.30 * 90.70 + 118.56 *
* C � E Loss (ft) * 0.04 * Cum SA (acres) * 119.98 t 9.99 • 64.9p x
lifl�.!li+4#k#+4#4ff1hk4#4;Y*R4#itk+M4lk#k#4*h4hik�.tAtRfl4kklf141i4t4vl1:ZRYiif�Yfi#4*hY#t�.1�k#�F#*Jxf}t
Warning: Divided flow computed for this cross-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depihs were found at this location. The critical depth with the lowes[,
valid,
. water surface was used.
Page 84
STVR�IN.rep
CROSS SECTION OUTPUT Profile #500 yea[
•+r:.ii��ri�+�♦tri�w�:.+i�wi�rxrr.::r�a+���t�vwri::..+�i.w*+xxww�;�wirvra��+.i++ar�x+��:»rt*aa
t E.G. Elev (fU ' 4811.79 ' Element * Left OB R Channel ' Right OB *
• Vel Head (f[) * 0.28 ' Wt. n-Val. * 0.070 * 0.040 • 0.070 '
" W.S. Elev (f[) ' 4811.50 • Reach Len. (ft) * 890.00 ' 1360.00 � 1550.00 *
* Crit W.S. (ft) * 4808.90 * Flow Area (sq fU *10508.06 • 1585.54 * 1747.35 "
+ E.G. Slope (ft/fU *0.001739 � Area Isq ft) '10508.06 * 1585.54 • 4056.73 *
* Q To[al (cfs) *41960.00 ' Flow (cfs) *27875.21 •11239.01 * 2845.77 '
R Top width (ft) � 3941.51 • Top Width (f[) ^ 2078.29 � 159.00 • 1704.22 *
• Vel Total (ft/s) * 3.03 " Avg. Vel. (ft/s) * 2.65 * 7.09 ' 1.63 '
* Max Chl Dpth (ft) • 11.�5 * Hydr. Depth (fU " 5.06 " 9.97 F 2.50 *
' Conv. To[al (cfs) *1006319.0 * Conv. (cfs) •668526.2 *269543.2 ' 68249.6 K
R Length Wtd. (fU " 1089.�8 * Wetted Per. (fU • 2084.23 * 161.96 ' 700.08 '
` Min Ch E1 (fU " 4799.75 ' Shear (lb/sq fU * 0.55 ' 1.06 * o.Z� '
* Alpha � 1.99 * Stream Power (lb/ft s) • 1.45 ' 7.53 ' 0.44 '
* Frctn Loss (Etl " 1.69 * Nm Volume (acre-fU * 496.30 ' 92.41 * 282.21 *
* C & E Loss (ft) ' 0.04 * Cum SA (acies) • 127.16 ' 10.17 * 86.01 *
•+a:.ttst+W+i�va.+ai�+�«�;x++ti.�.+r�i+�*�rr�r+�3:ti�Rv�xr:��tr+wrrx�++taaarRR:t++�w:ttx::.�.��
Warning: Divided flow computed for this cross-section.
Warning: The energy loss was greater [han 1.0 £t (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections_
Note: Multiple critical depihs were found at ihis location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile q10 year
�i+rrRRwxxw+:ry.rr+„�+�i+3i++ai.rR.+<<.riw+::.trwrxr::�si:rwxE+t�axx.+.tt+�«�++::t«+rK�r.r:+:a
* E.G. Elev (fU ' 480�.29 * Element * Geft OB • ChanRel ' RighG OB •
* Vel Head (fU ' 0.13 ' Wt. o-Val. • 0.070 * 0.040 • *
• W.S. EleV (fU ' 4807.16 • Reach Len. (fU * 890.00 " 136�.00 � 1550.00 �
* Crit W.S. (ftl • 4804.39 * Flow Area (sq fU * 2684.60 • 910.98 • `
* E.G. Slope (Et/ftl *0.000916 • Area (sq ft) * 2684.60 R 910.48 ' +
• Q Total (cfs) ' 5950.00 * Flow (cfs) * 2527.42 " 3422.58 �
* Top Width (fU * 1692.43 t Top width (ft) * 1545.72 + 146 J1 • *
! * Ve1 Total (ft/5) * 1.66 * Avg. Vel. (ft/s) R 0.94 * 3.76 Y i
.l * Max Chl Dpth (ft) 7.41 * Hydr. Depih (fU 1.74 6.21
` Conv. Total (cfs) �196639.3 ' Conv. (cfs) * 83527.7 *113111.6 ' •
' Length Wtd. (fU " 1245.11 • Wetted Pez. (ft) • 1547.91 ; 148.8� ; e
t Min Ch E1 (ft) " 4799.75 * Shear (lb/sq ft) * 0.1� 0.35
' Alpha * 3.10 * Stream Power Qb/ft s) " 0.09 * 1.31 * *
� Frctn Loss (ftl * 1.30 * Cum Volume (acre-fU * 71.23 * 52.81 ` 51.74 *
:.C+•:E.:�S«. �::':.......+....�.��::����mR�r.�•..•x'.:.+.w..:....:..4a....x..9.....«::.3..22.+.
Warning: Divided flow computed for ihis cross-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the cuzren[ and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The criGical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION OUTPOT Profile #50 year
11i1#1flfix�4lYfAAf4#4fitt4YxR�i4Yf1/ffiiRftti##��f1x1#1l1T4kY+Rfi#1/f144+4#f11h�#t4ltfTft##fYY
• E.G. Elev (ft) * 4808.66 ' Element * Left OB * Channel * Right OH •
* Vel Head (ft7 � 0.18 + Wt. n-Val. ' 0.070 * 0.040 • '
+ W.S. Elev (ft) • 4800.48 � ReaCh Len. (ft) * 890.00 � 1360.00 * 1550.00 *
* CYit W.S. (ft) * 4806.90 * Flow AYea (sq fU ' 4850.92 � 1309.12 • *
* E.G. Slope (ft/ft) *0.001276 • Area (sq ft) * 4850.92 ' 1109.12 + *
* Q Total (cfs) *12850.00 * Flow (cfs) • 7423.20 " 5426.80
* Top Width (ft) • 1889.74 * Top Width Ift) * 1735.77 • 153.97 ` *
* Vel Total (ft/s) • 2.16 * Avg. Vel. (ft/s) r 1.53 t 4-89 ' *
* Max Chl Dpth (Et) • e J3 • Hydr. Depth (ft) ' z-�9 ' �-ZO � *
* Conv. Total (cfs) *359791.9 * Conv. (cfs) *207845.0 *151946.9
' Length Wtd. (ft) * 1144.31 * Wetted Per. (ft) " 1739.40 * 156.61 ` Y
" Min Ch El (ft) ' 4799.75 * Shear (lb/sq ft) ' Q.ZZ 0.%
� Alpha ` 2.4� * Stream Power (lb/ft s) • 0.34 * 2.76 i e
� Fzctn Loss (ft) � 1.14 * Cum Volume (acre-ft) a 181.70 65.69 99.�4 Y
* C & E Loss (ft) ' 0.03 Cum SA Iacres) * 79.27 * 9.88 ' 36.57
�a�r��+�»x�R+wr�x:.i+�:i�r�iatw��+a��t+����x�rx++x��Rxatrir++r..i.+x++y+�tr+x«t+�+�aa�iat�+w♦
, Warning: Divided flow compu[ed Eor this cross-section.
� warning: The energy loss was greater than 1.0 ft (0.3 m) . 6etween [he current and previous cross
Page 85
STVRAIN.rep
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at [his location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER R5: 53970
INPOT
Description: The topographic information for this cross-section was taken from
the ACOE HEC model.
Station Elevation Data num= 54
S[a Elev Sta Elev Sta Elev Sta Elev Sta Elev
.:��+.3�.«�k��a+�+*«i++ai��x�:wx.x.rw.K+�r..+++r��itt�t:x�.».�rxrriw�+r+�+w��+:
1220 4815.05 1250 4807.05 1255 4806.15 1276 4804.45 1315 4805.85
1339 4808.35 1364 4608.35 1379 4811.25 1400 4811.45 1428 4807.35 .
1460 4809.45 1513 4808.�5 1524 9805.85 154� 4805.B5 3200 4803.05
3513 4805.95 3565 4802.95 3728 4803.65 3743 4800.65 3786 4800.65
3816 4611.85 3B36 4803.95 3856 4803.95 3871 4799.35 3905 4798.15
3970 4798.15 3985 4803.75 4052 4803.65 4390 4803.5 4400 4801.45
4413 4801.45 4426 4803.65 452� 4805.05 4552 4803.25 4603 4807.95
4893 4909.05 5133 4810.65 5388 4811.75 5662 4811.85 5886 4812.05
6109 4811.25 6341 4611.25 6363 4811.85 6480 4811.25 6500 4811.75
6522 4811.45 6531 4810.15 6540 4811.45 6566 4811.45 6578 4810.15
6591 4813.25 6601 4812.75 6784 4813.55 6903 4813.85
Manning's n Values num= 3
SCd n Val Std n Val Sta n Vdl
#i*�4tt�xylx#�Nttit4kNR#i4+WY#*##t+1+4it+�fY#k!k
1220 .�� 3856 .04 3985 .07
eank Sta: Lef[ Right Lengths: Left Channel Right Coeff Contr. Espan.
3856 3985 740 �30 820 .1 .3
Ineffective Flow num= 1
�. Sta L Sta R Elev PermanenC
5452 6903 48ll F
Blocked Obstructions num= 2
Sta L Sta R Elev Sta L Sta R Elev
+.�t+a::r.ixiiw.xat�++tt�::::xrww..�«a+�k+R���+r
1220 3816 4805 3985 6903 4803.8
CROSS SECTION OUTPUT Profile p100 year
.+x.+..+++..+.....�.....w++«a..::..«.:..x,+xx.xxa+..x..+..++...•..+..++...+...+.++.x:.:xx..+.::
• E.G. Elev (ft) = 4808.03 * Element t Left OH k Channel " Right OB �
* Vel Head (ft) * 0.12 * Wt. n-Val. R 0.070 t 0.040 + 0.0�0 *
' W.S. Elev (fU * 4807.91 * Reach Len. (fU ` 740.00 a 730.00 R 620.00 *
` Crit W.5. (ft) . * 4806.32 � Flow Area (sq ft) * 6643.33 ' 1144.67 ' 2381.95 •
* E.G. Slope (Et/ft) *0.000822 * Area (sq ft) ' 6643.33 * 1144.67 • 2381.95 '
* Q Total �cfs) w16700.00 • Flow (Cfs) ' 7956.64 * Sll8.68 ' 3564.69 *
r Top Width (ft) • 3166.43 * Top Width (ftl ' 2419.82 * 129.00 � 617.61 *
� Vel Total (ft/s) • 1.64 * Avg. Vel. (ft/s) ' 1.20 * 4.52 3 1.50 *
* Max Chl Dpth (ft) * 9.�6 ` Hydr. Depth (ft) * 2.�5 * 8.87 + 3.86 �
* Conv. Total (cfs) *582402.6 * Conv. (cfs) '277483.0 *180603.3 <124316.3 *
+ Length Wtd. (ft) * 761.60 k wetted Per. (ft� * 2421.82 * 130.77 * 617.85 �
* Min Ch E1 (ft) * 4�98.15 * Sheaz (lb/sq ft) * �.14 * 0.45 * 0.20 +
* Alpha * 2.78 � Stream Power (lb/ft s) * 0.17 * 2.03 * 0.30 •
* Frctn Loss (fU * 1.47 • Cum Volume (acre-ft) * 110.64 * 34.14 + 74.76 +
* C & E Loss (ft) * . 0.10 * Cum SA (acres) R 77.01 � 5.53 • 26.54 *
f****4�4Fi;kttMF+h*444iYtt4ks}fMhYYYRif#1YY#�#it+iA4FfAixltlxxxf111if4iii#*Ft)11Y4Yi#4#fkt1h14f
Warning: Divided flow computed for [his cross-section.
Warni�g: The velocity head has changed by more than o.s ft (0.15 m) . This may indicate the need for
additional cross sections.
warning: The conveyance ratio (upstream conveyance divided by downstream wnveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was greater than 1.o ft (0.3 m1 . between ihe current and previous cross
section. This may indicate Lhe need for additional crosa sections.
Note: Multiple critical depths were fovnd at [his location. The critical depth with the lowest,
valid,
water surface was used.
Page 86
STVRAIN.rep
CROSS SECTION OIITPUT Pro£ile #500 year
. iwii#+!#444it1fttif44#t#YiWi4Y#A11f1A'fk44fF11x1i#1#A##YM1i##Y5t#iY4#YiFWk11Y>11#li1MN*#*Mfli#f>
+ E.G Elev (fU * 4810.06 � Element * Left OB * Channel * Right OB *
• Vel Head (ft) " 0.21 * Wt. n-Val. * 0.070 * 0.040 * 0.070 *
� W.S. Elev (ftl ' 4809.85 * Reach Len. (fU * 74�.00 * 730.00 � 820.00 *
• Crit W.S. (ft) + 4807.57 • Flow Area (sq ft) *11476.43 • 1394.23 * 4016.46 R
� E.G. Slope (£t/fU *0.001391 � Area (sq ft) *11476.43 * 1394.23 • 4016.46 •
• Q Total (cfs) *41960.00 * Flow (cfs) '24712.38 ` 9358.65 * 7888.97 +
+ Top Width (fU * 3723 Jo * Top width (ft) • 2566.88 * 129.00 t 1a27.62 t
• Vel Total (f[/S) * 2.46 * Avg. Vel. (ft/5) * 2.15 * 6.71 * 1.96 *
* Max Chl Dpth (f[) " 11.70 * Hydr. Depth (ft) ` 4.47 * 10.81 * 3.91 '
R Conv. To[al (cfs) "1124876.0 * Conv. (cfs) •662496.4 '250889.5 *211489.8 *
' Length Wtd. (ft) * 758.58 * wetted Per. (ft) • 2570.33 * 130.77 * 1028.07 �
t Min Ch E1 (fU * 4798.15 * Shear (lb/sq ft) * 0.39 • 0.93 * 0.34 �
• Alpha ' 2.19 • Stream Power (lb/ft s) * 0.84 * 6.22 * 0.67 *
* Frctn Loss (ft) ' 1.92 t Cum Volume (acre-ft) ' 271.71 * 45.89 * 138.58 '
• C & E Loss (ft) * 0.05 * Cum SA (acres) • 79 J1 * 5.67 * 37.40 *
...x.x...:...x.�+x.«.......�.x+:.+«.....+x.:.as.......::..::....+...w+.+:........+..+:w:.:::x..
warning: Divided flow computed for this cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than �
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . be[ween the current and previous cross
section. This may indicate the need foz additional cross sections.
Note: Multiple cii[ical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #1� year
YF#k4tiitli#4iA4fx*tkfSF44#iixtTt#4YWli1<S#l�YWi�ix4k4#fxMIlMlxftt�tfii+44YYitRlxl4#*#i#I#fYk4+
' E.G. Elev (ft) ' 4805.97 + Element • Left OB * Channel * Right OB *
* Vel Head (ft) ' 0.21 t Wt. n-Val. ' 0.0�0 * 0.040 • 0.070 '
� W.S. Elev (ftl • 4805.76 � ReaCh Len. (£U " �40.00 � 730.00 • 820.00 "
* Cri[ W.S. (ft) ' 4803.03 * Flow Area (sq ft) ' 1503.34 t 865.13 * 1073.71 +
' E.G. Slope (ft/fU '0.001197 * Area (sq ft) * 1503.34 ` 866.13 * 1073 J1 *
* Q Total (cfs7 * 5950.00 * Flow (cfs) ' 854.46 t 3925.87 r 1169.67 •
' Top width (ft) • 2972.22 ' Top Width (fU ' 2249.04 " 129.00 * 594.18 `
� * Vel Total (ft/s) * 1.73 # Avg. Vel. (ft/s) " 0.5� * 4.53 " 1.09 *
� * Max Chl Dpth (ft) ` �.60 ' Hydr. Depth (ft) • 0.67 * 6.71 � 1.81 '
* Conv. Total (cfs) *1�1982.0 * Conv. (cfs) * 24697.9 *113475.4 * 33808.7 *
* Lengih Wtd. (ft) * �53.91 * Wetted Per. (ft) * 2249.59 * 130.77 " 594.32 *
' Min Ch E1 (fU * 4798.15 * Shear (lb/sq fU R 0.05 * 0.49 * 0.13
� Alpha * 4.63 * Stream Power (lb/ft s) x 0.03 t 2.24 * 0.15 *
* Frctn Loss (ft) ` 1.65 * Cum Volume lacre-ft� * 28.45 � 25.08 * 32.63 *
' C 6 E Loss (fU ' 0.04 t Cum SA (aCYes) R 35.6� R 5.21 * 21.65 '
tt.Kr+�xx::t:�t+ix+:.�tiKwxxrR.:t�wwxx+�t++.wxx.+tti��++*x:tk*�+taxR:x�:t+���wRRi+�+��+atrwtww•
Warning: Divided flow computed for this cross-section. -
Warning: The conveyance ratio (ups[ream conveyance divided by downstream conveyancel is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and pzevious cross
sec[ion. This may indicate the �eed for additional cross sections.
Note: Multiple critical depths were found at ihis location. The critical depth with the lowest,
valid,
water suzface was used.
CROSS SECTION OUTPUT Profile #50 year
rwwx+:iex+ix+++3i++rx:::si�x.r�+++;Rx.:+ayt�fx+a+iw+R�:t:r+rrrx.t+x�rWxrw::.��ri�t:>�+�we�xkxRx
* E.G. Elev (ft) * 4807.49 ' Element ' Left OB ' Channel ' Right OH '
* Vel Head (ft) R 0.72 * wt. n-Val. " o.070 � 0.040 * 0.070 �
• w.S. Elev (fU • 480�.37 ' Reach Len. (f[) ' 740.00 • 730.00 * 820.00 '
* Crit W.S. (ft) ' 4806.04 • Flow Area (sq fU * 5340.67 � 1074.88 * 2049.40 `
• E.G. Slope If[/ft) •0.000802 ' Area (sq ft) ' 5340.67 k 1074.88 * 2049.40 *
* Q Total (cfs) "1�850.00 * Plow (cfs) ' 5486.00 k 4606.00 � 2758.00 �
* Top Width (ft) ' 3136.53 * Top Width (ft) ' 2395.79 � 129.00 * 671.74 +
* Vel Total (ft/s) + 1.52 * Avg. Vel. (ft/s) * 1.03 * 4.29 1.35
* Max Chl opih (fU • s.22 * Hydr. Depth (ft) * 2.a3 ' 8.33 * 3.35 *
' Conv. Total (cfs) "453�01.2 ' Conv. (cfs) *193696.7 ;162626.4 • 97378.1 •
; Length Wtd. (fU * 760.61 ' Wetted Per. (ft) { 2397.37 � 130.77 * 611.96 {
* Min Ch E1 (ft) � 4798.15 * Shear (lb/sq ft) 0.71 0.41 0.17
* Alpha ' 3.22 * Stream Power (lb/ft s) ' 0.11 * 1.76 * 0.23 a
* Frctn Loss (ft) ` 1.42 * Cum Volume (acre-ft) ' 77.58 ' 31.59 • 62.57 "
• C & E Loss (ft) + 0.09 ' Cum SA (acres) * 3�.06 • 5.46 * 25.68 *
- :..x«....,::......:.+.+....+:..+...:.+....w,...,e+«..+x::.x.....:x..�+..x..+.+R..:Rx�.+....+.w.
Page 8�
STVRAIN.rep
� Warning: Divided flow computed for this cross-section.
. warning: The velocity head has changed by more than o.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
warning: The conveyanre ratio (upstream conveyance divided by downsGream conveyancel is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greatez [han l.o ft (0.3 m) . be[ween the current and previous cross
section. This may indica[e the need tor additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 53240
INPUT
Description: The topographic information for ihis cross-section was taken from
the ACOE HEC model.
Station Elevation Data num= 46
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.......+.....+.....:.:....+.x..++++«�.:.:++..«w.a...::....:++...:..++.x.+...x:..
1000 4817.25 1291 4816.05 1364 4809.05 1433 4807.75 1454 4802.45
1524 4806.85 1566 4800.25 1586 4800.25 1593 4805.35 1610 4805.35
1661 4813.25 1701 4805.05 1884 4801.45 1950 4800.05 3263 4800.25
3535 4801.45 3"/59 4802.65 3787 4805.95 382'1 4798.15 3903 4798.15
3926 4804.05 3948 4802.85 4068 4802.55 4086 4800.65 4289 4800.65
4309 4803.25 4549 48�4.35 4794 4807.35 5041 4808.05 528B 4807.95
5463 4808.65 5657 4809.85 5844 4809.75 6037 4809.85 6223 4809.95
6354 4810.15 6497 4810.65 6652 4810.25 6821 4810.15 7080 4610.95
7250 4810.85 7426 4811.05 7535 4812.65 7567 4813.55 7576 4813.15
�595 4817.35
Manning's n Values num= 3
Sta n Val Sta � Val Sta n Val
,d xxti�..i+�+..r:M+.r:..a«t�.x:*.i�t�,�.,Fxt�+i+:�++.�
= 1000 .07 378� .04 3926 .07
Hank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
3"187 3926 � 820 870 840 .1 .3
ffiocked Obs[ructions num= y
Sta L Sta A Elev Sta L Sta R Elev
w+*��+�t„�i+ar.Fi�t...R.�+.:.:+.w��t:.�wx+.+F:xxr
1000 3787 4805 4309 7595 4800
CROSS SECTION OUTPIIT pmfile #100 yeai
+��++*x.x�rx •��re�tt�:itreta���W+t+++t�sw��++��a���w�x+Rx��rrx+��xxxrra�Rirratfr:rrri�.�++t���+
* E.G. Elev (ft) + 4806.47 � Element • Lef[ OH + Channel * Righ[ OB *
• Vel Head (ft) • 1.09 * Wt. n-Val. + p.070 * 0.040 * 0.070 *
* w.5. Elev (ft) * 4805.38 * Reach Len. (fU * 820.00 � 870.00 * 840.00 +
* Crit W.S. (ft) * • Flow Area (sq ft) ' 825.91 • 781.48 � 1880.92 +
* E.G. Slope (ft/fU *0.008784 * Area (sq £t) * 825.91 * 781.48 * 1880.92 *
• Q Total (cfs) =16'100.00 * Flow (cfs) * 851.36 � 8664.92 • 7183.73 �
* Top Width (ft) * 3060.55 ' Top Widih (ft) * 2217.67 * 136.06 * 706.82 •
* Vel Total (ft/s) * 4.79 * Avg. Vel. (£t/s) * 1.03 * 11.09 * 3.82 *
* Max Chl Dpth (f[) � 7.23 � Hydr. Depth (ft) * 0.37 * 5 J4 * 2.66 �
* Conv. Total (cfs) *178189.4 * Conv. (cfs) * 9084.0 * 92954.9 • 76650.6 *
* Length Wtd. (ft) • 847.67 * Wetted Per. (ft) k 2217.93 +� 137.50 * 707.13 *
• Min Ch E1 (ft) * 4796.15 + Shear (lb/sq ft) * 0.2� * 3.12 * 1.46 *
* Alpha • 3.06 • Stream POweL (lb/£t s) � 0.21 � 34.56 * 5.57 *
# Prctn Loas (ftl ' 3.61 • Cum Volume (acre-ft) * 47.20 � 18.00 • 34.64 *
* C & E Loss (ft) • 0.27 * Cum SA (acres) r 77.62 � 3.31 + 14.07
f#h#f#1:;�.Fiii#f'Fi*ttTFltill�.tFtAihYlt#*'.l41ii#*h4YYtftk4Y#i}fi#44Yi44kAhliifY:M!}*1f4ilFli#i�FAYf�.F*t
Warning: Divided flow computed for this cross-section.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
addi[ional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is. less than
0.7 or greater than 1.4. This may indicate [he need for additional cross sections.
Warni�g: The energy loss was greater than 1.0 f[ (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Page BB
STVRAIN.rep
CROSS SECTION OUTPUT Profile N500 year .
. .k..:..::.+::.....+:.:............««x...:x:.�.:«.+.a..:..w.:xx.......:•..+..xr.:.:....+.:...+..
• E.G. Elev (fU ' 4808.09 * Element * Left OB " Channel R Right OB *
* Vel Head (fU ' 0.67 * Wt. n-Val. • 0.070 * 0.040 ' 0.070 •
t W.S. Elev (ft) * 4607.4a t Reach Len. (fU * 820.00 * 870.00 * 840.00 "
* Crit W.S. (ft) * ' Flow Area (Sq ft) ' 5943.23 * 1064.81 * 3497.32 *
' E.G. Slope (ft/fU *0.005967 • AZea (sq ft) ' 5443.23 ' 1064.81 • 3497.32 '
* Q Total (cfs) *41960.00 * Flow (cfs) '15925.93 *ll789.19 `14244.88 *
• Top Wid[h (ft) * 3318.62 * Top Width (£t) • 2286.63 " 139.00 * 892.99 *
R Vel Total (ft/s) ' 4.19 F Avg. Vel. (ft/s) • 2.93 ' 11.0� • 4.07 •
� Max Chl �pth (ftl " 9.2� * Hydr. Depth (ft) • 2.38 * 7.66 * 3.92 *
• Conv. Total (cfs) '543203.4 k Conv. (cfs) '206173.0 *152619.6 '184410.6 '
• Leng[h W[d. (f[) ' 838.39 x Wetted Per. (ft) " 2287 JO * 140.50 * 893.32 *
* Min Ch E1 (ft) � 4798.15 * Shear (lb/sq fU ' O.B9 * 2.82 * 1.46 *
" Alpha � 2.46 w Stream Power (lb/ft sl * 2.59 * 31.26 * 5.94 •
* Frctn Loss (ft) ' 3.09 * Cum Volllme (aCre-ft) * 127.99 a 25.29 * 69.85 `
* C & E Loss (ft) * 0.12 " Cum SA (aczes) * 38.48 * 3.43 * 19.32 *
+.xx.:::....+.....++..«.:::.:............xx.+x:.x:k::+:.:.a+...+.+...........:......+....++++..
Warning: Divided flow computed for [his cross-sectior..
Warning: The conveyance ratio (upsiream conveyance divided by downstream cor.veyance) is less than
0.7 or greater than 1.4. This may indicate the need for addi[ional cross sections.
warning: The energy loss was greater than 1.o ft (0.3 m) . between the current and previous cross
sec[ion. This may indicate the need for additional cross sections.
CROSS SECTZON OUTPUT Profile #10 year
.::+.......x..x.+.:..:..x...x.+«.....+...x.+::...:...:..s....+w..x..x+«.xx.w..+.wr.x+:.:...+...
* E.G. Elev (ft) ' 4804.29 * Elemen[ * Left OH � Channel * Right OB *
* Vel Head (ft) ' 0.57 • Wt. n-Val. * * 0.040 * 0.070 *
t W.S. Elev (ftl ' 4803.71 ` ReaCh Len. (fU • 820.00 * 870.00 * 840.00 *
' Crit W.S. (fU " * Flow Area (sq ft) * * 562.52 * 84�.06 *
* E.G. Slope (ft/ftl `0.005196 � Axea (sq ft) * • 562.52 * 847.06 *
* Q Total (cfs) ' 5950.00 ' Flow (cfs) ' • 4052.61 ` 1897.40 =
* Top Width (fU ' 604.14 ' Top Width (ft) ' * 126.22 * 477.92 '
* Vel Total (ft/s) ' 4.22 * Avg. Vel. (ft/s) ` * 7.20 * 2.24 *
* Max Chl Dpth (ft) • i 56 * Hydr. Depth (ft) ' * 4.46 * 1.77 *
' Conv. Total (Cfs) ' 82546.9 * Conv. (cfs) ` * 56223.6 • 26323.4 �
� t Length W[d. (ft) � 856.38 • We[ted Per. (ft) e * 127.46 * 478.22 �
' Min Ch E1 (ft) " 4�98.15 • SheaZ (lb/sq ft) 1.43 0.5�
` Alpha ' 2.07 * Stream Powez (lb/ft sl ' * 10.31 ' 1.29 '
+ Frctn Loss (fU * 2.99 * Cum Volume (acre-£t) � 15.68 * 13.11 * 14.56 r
* C & E Loss (ft) * 0.11 R Cum SA (acres) ' 16.57 # 3.07 " ll.56 •
t+txx+.:r.::.t...x+.::.:�x.w.:���+txxwxx�:t.xws:xx:rww:.:+�t::+�++at+x+F«+���++kwr.rx�+:F«:«*+r
Warning: Divided flow computed for �his cross-section.
warning: The conveyance ratio (vpstream conveyance divided by downstream conveyance) is less than
o.� or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was 9reater than 1.0 ft (0.3 m) . be[ween the current and previous cross
section. This may indicate the need for additional cross sections.
�ROS5.:6...ON{OUTPUT*+Prof..:.#*O;yea::...+.:....:....�.......+.. ..:.. . ....... ...+...
« . +x. a . ... w..+ x :x ..+
* E.G. Elev (ft) � 4805.97 " Element ' Lett OB * Channel * Righ[ OB *
* Vel Head (fU • 1.05 ' Wt. n-Val. ` ' 0.040 • 0.070 +
' W.S. Elev (ft) ' 4804.92 + Reach Len. (ft) * 820.00 * 870.00 * 840.00 *
* Cri[ W.S. (ftl * � Flow Area (sq fU * * 720.23 • 1568.37 *
* E.G. Slope (ft/ft) *0.008385 * Area (sq ft) * * 720.23 * 1568.37 *
' Q Total (Cfs) •12850.00 * Flow (Cfs) ` * 7475.54 • 5374.46 *
* Top Width Ift) ' 803.46 * Top Width (ft) * ` 133.73 ' 669.73 *
* Vel Total (ft/s) * 5.61 * Avg. Vel. (fC/s) w * 10.38 * 3.43 *
+ Max Chl Dpth (fU ' 6.77 t Hydr. Depth (ft) � ` 5.39 � 2.34 *
` Conv. Total (cfs) •140328.7 * Conv. (cfs) * • 81636.8 • 58691.9 *
* Length Wtd. (f[) * 850.16 ' Wetted Per. (ft) � ' 135.13 • 670.04 *
* Min Ch E1 (ft) * 4798.15 ` Shear (lb/sq fU * ' 2 J9 ^ 1.23 *
* Alpha * 2.14 * Stream Power (lb/ft s) * * 28.96 " 4.20 *
* Frctn Loss (fU ' 3.56 + Cum Volume (acre-ft) * 32.22 • 16.55 ' 28.52 *
* C � E Loss (ft) • 0.26 " Cum SA (acresl * 16.71 " 3.26 * 13.62 *
if}#kY+41*k�#441YiIRFtivxxTRtffifk��4fY+fxl41M4#kFFx4iY1#4ixAAfF4*kt#i#iF##Li41IAitRi+kiRiA#4k♦
Warning: The velocity head has changed by more than o.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater [han 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between [he current and previous cross
Page 89
STVRAIN.rep
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 52370 �
INPOT
Description: The Copographic information for this cross-section was taken from
the ACOE HEC model.
Station Elevation Data num= 56
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
#k*iki4l4�;�t#+i#k1�iAiflifwMli#tYhllff�f#kxtk!*x4kf141xk#k1111f#Mrtk1###f4k4kiti
1650 4813.05 1690 4811.05 1720 4809.05 1760 4807.05 1760.7 4807.05
1772 4805.55 1809 4805.95 1861 4800.75 1995 4799.35 2237 4796.75
2478 4796.65 2594 4795.85 2843 4796.95 3092 4798.05 3214 4798.45
3244 4800.95 3266 4796.35 3285 4796.35 3314 4798.85 3545 4799.85
3614 4800.35 3629 4801.55 3660 4796.75 3682 4795.55 3752 4�95.55
3785 4�9].25 3828 4803.65 3656 4800.05 4084 4799.25 4327 4799.65
4562 4800.45 9614 4804.05 4863 4804.35 5093 4805.15 5348 480�.65
5583 480�.55 5842 480�.55 6121 4807.55 6363 4808.65 6595 4809.75
6864 4910.15 7045 4810.75 7097 481�.75 7115 4809.75 7132 4812.35
7138 4808.65 �160 4808.65 7180 4812.55 719� 4810.45 7364 4810.45
7523 4810.05 �686 4809.55 7782 4809.95 7821 4824.85 7835 4824.85
7835.1 4824.85
Manning's n Values num= 3 �
Sta n Val Sta n Val Sta n Val
....+.+..+...s.:.....:+..+...+.......+...+.+....
1650 .0� 3624 .04 3828 .07
Bank Sta: Left Right Lengihs: Left Channel Right Coeff Contr. Expan.
3624 3828 0 0 0 .1 .3
Blocked Obstructians num= 2
Sta L S[a R Elev Sta L Sta R Elev
�x....++.++.......+x».ax.a.....+.r.a.x.«.:..k...
1650 3624 4800 3828 �835.1 4800
CROSS SECTION OUTPUT Profile #100 yeaY
tk1lAif*�Y�##IkiMr+i+ll#1txRiRli1SM11l1khxl#tfkT+i#1#F44kk}x#kfki**k++fi#iY4�1Ftt�}�klYt4f;ttlh
* E.G. Elev (ftl ' 4802.60 � Element * Left OB i Channel ' Right OB *
• Vel Nead (ft) ' 0.20 ' Wt. n-Val. ' 0.0�0 * 0.040 * 0.070 '
* W.S. Elev (ft) * 4802.40 * Reach Len. (ft) * * * *
* Crit W.S. (ft) ' 4801.51 * Flow AYea (Sq ft) ` 4188.�1 * 1�20.�2 rt 1711.69 '
• E.G. Slope (ft/ft) �0.002501 * Azea (sq ftl * 4188.A * 1020.72 * 1711.69 *
* Q Total (cfs) •16700.00 r Flow (cfs) * 7867.46 * 5690.10 � 3142.45 *
* Top Width (fU ' 2�27.49 • Top Width (ft) • 1�79.48 * 195.59 • 752.40 '
• Vel Total (ft/s) * 2.41 * Avg. Vel. (fG/5) • 1.88 * 5.5� * 1.84 *
rt Max Chl Dpth (ft) * 6.85 ' Hydr. Depih (ft) * 2.35 * 5.22 * 2.27 *
` Conv. Total (cfs) •333940.6 � Conv. (c£s) *157321.2 �113781.� � 62839.7 *
* Length Wtd. (ft) * • Wetted Pei. (ft) * 1779.78 * 196.36 � 752.62 �
* Min Ch E1 (£t) * 4�95.55 • Shear Ub/sq f[) * 0.3� R 0.81 * 0.36 *
* Alpha * 2.21 • Stream Power (lb/$ s) * 0.69 * 4.52 * 0.65 *
* Frctn Loss (ft) * + Cum volume (acre-fU * * * R
* C & E Loss (fU * • Cum SA (acres) * * * `
:�x+x�ii.+e�iw.+��..+:�«.:i:����.a»+�+t+��++ax++t++.���++t:+���e+��+�:++;�+.��:.a��+:�+�iaw.�+
warning: Divided flow computed for this cross-section.
CROSS SECTION OUTPUT Profile H500 year
iYi#f#4i4/!!#k#44Ifx£tRi�fMlfi#ilf4k#1k�#R!lfikkklif!!ilkkll!#14R1!*�kf41fY#tii#i₹#F4iF4#i4i4*1
3 E.G. Elev (ft) * 48o4.ee * Element * Left OB � Channel � Right OH *
* Vel Head (fU * 0.2� * Wt. n-Val. ' 0.070 * 0.040 ' 0.070 *
* W.S. Elev (ft) ' 4804.61 • Aeach Len. (ft) * * * *
• Crit W.S. (ftl • 4802.57 * Flow Area (sq ft) * 8155.38 * 1467.38 r 3540.01 *
* E.G. Slope (ft/ft) *0.002502 � Area (sq ft) * 8155.38 * 1467.38 � 3540.01 *
* Q Total (cfs) *41960.00 * Flow (cfs) *23690.84 *10130.79 * 8138.37 *
• Top Width (fU • 3116.3� * Top Width (f[) * 1801.63 � 204.00 * 1110.68 w
* Vel Total (ft/s) � 3.19 * Avg. Vel. (ft/s) • 2.90 * 6.90 i 2.30 *
* Max Chl Dpth (ft) * 9.06 * Hydr. Depth (ft) * 4.53 * 7.19 * 3.19 �
* Conv. Tota1 (cfs) '838912.3 * Conv. (cfs) *473654.4 *202546.3 *162711.5 *
* Length wtd. (fU ` * Wetted Pez. (ft) * 1802.a4 � 204.87 • 1111.04 *
. • Min Ch E1 (fU � 4�95.55 • Shear (lb/sq ft) ' 0.71 < 1.12 ^ 0.50 *
Page 90
STVRAIN.rep .
! t Alpha * 1.70 ` Stream Power (lb/ft s) ; 2.05 ; 7 J2 * 1.14 �*
. � Frctn Loss (ftl * Cum Volume (acre-ftl
C & E Loss (fU * • Cum SA (acres) ' k * `
.+.. . x:...�.x.:....+.,.....++::,..xxx:....w:....«,:..x.........+.x.+xx:...........::...:...:.
CAOSS SECTION OUTPUT Profile p10 year
YfF+it�4k###Ff1'R�ftf�#4MffR#*i#+4#fk1YtY#i'iR+tt+�lk4itt*iAt11i44+�.l1AlF*!#1fft1tt4kM+f1i1lRf'Y'.�t#f
• E.G. Elev (fU * 4801.19 ' Element ` Left OB � Channel "' Right OB *
* Vel Head (E[) • 0.22 ' Wt. n-Val. • 0.070 ' 0.040 * 0.070 "
* W.S. Elev (fU ' 4800.97 * Reach Len. (ft) � * � �
* CriG W.S. (ft) ' 4800.64 � Flow Area (sq fU * 1665.69 " 750.20 * 662.5"] '
* E.G. Slope (ft/ft) *0.002503 ' Area (sq ft) � 1665.69 * 750.20 f 662.57 �*
• Q Total (cEs) ' 5950.00 • Flow (cfs) * 1704.78 * 3580.02 ; 665.21 {
* Top Width (ft) * 2662.88 * Top Width (ft) * 1760.43 ± 181.']0 ; 720.75 *
* Vel Total (ft/s) ' 1.93 * Avg. Vel. (ft/s) * 1.02 4.7"1 1.00 k
* Max Chl Dpth (ft) * 5.42 * Hydr. Depth (f[) � 0.95 * 4.13 ` 0.92
* Conv. Total (cfs) *118930.5 • Conv. (cfs) k 34075.7 * 71558.5 ` 13296.4 "
* Length Wtd. (£t) • • Wetted Per. Ift) • 1760.63 a 182.33 ` �20.82 +
k Min Ch E1 (fU * 4795.55 ' Shear (lb/Sq fU * 0.15 + 0.64 ' 0.14 .
* Alpha ' 3.'/B ' Stream Powez (lb/ft s) * 0.15 * 3.07 * 0.14 '
* Frctn Loss (ft) � ' Cum Volume (acre-ft) * i
* C s E Loss ffU * ` Cum SA (acres) ' * `
lkilRk'.lff44iiY*tti+RkfFf<ifiF}T4iM1T44i'.lRiihRFt1+�.l4lk�#i##YRl4YiiFl1}t#11l4�'41i1:i4fik�lfMi'.lR�{!i
Warning: Divided flow computed for this czoss-section.
CROSS SECTION OUTPfIT Pmfile #50 year
♦x+�+x�x+tt+a.r....+R.+:+t�i:x.++wr+:;r:�+�+:.+i�x.:+:*{w+r,=+++i:x:t�+���Rrr,.,:+ia«�+«kr,«xtw.++r
* E.G. Elev (ft) + 4802.16 ' Element * Left OH ' Channel ± Right OB *
� Vel Head (fil ' 0.20 * Wt. n-Val. * 0_070 h 0.040 * 0.070 i
* W.S. EleV (ft) • 4801.97 ' ReaCh Len. (ft) � ` i
• Crit W.S. (ft) * 4801.29 * Flow Area (sq ft) * 3423.28 * 937.11 ' 1389.72
• E.G. Slope (ft/fU *0.002500 � Area (sq ft) � 3423.28 * 937.11 * 1389.72 *
* Q Total (cfs) *12850.00 " Flow (cfs) R 5628.07 • 4982.98 * 2238.94
` Top width (fU * 2710.7a * Top width (f[) • 1775.17 * 192.69 ' 742.83 «
* Vel Total (ft/s) + 2.23 R Avg. Vel. (ft/sl * 1.64 • 5.32 * 1.61 i
* Max Chl Dpth (ft) * 6.42 * Nydr. Depth (fU ' 1.93 * 4.96 • 1.87
.� * Conv. Total (cfs) "25'1023.1 * Conv. (cfs) *112571.6 * 99668.6 • 44782.9 "
� Length Wtd. (ft) * ' Wetted Pes. (ft) * 1775.45 � 193.44 �* 743.01 *
* Min Ch E1 (fU * 4]95.55 • Sheaz Qb/sq ft) * 0.30 * 0.76 ' 0.29 *
� * Alpha • 2.52 ` S[zeam Power Ilb/ft s) � 0.49 * 4.02 * 0.4� *
* Frctn Loss (ft) � * Cum volume (acre-ft) k
'� C & E Loss (ft) • ' Cum SA (acres) * ;
...: .+x+«..+..:..xx..+..,:.a.+..**.*..*+•«x.:..+.::.+.::...+..a.x:....:.:++.....++:.....x.++:.
Warning: Divided flow computed for this cross-section.
.x.:+...x.•.+.»x...«...a.....+.:.+.++.+,..+x.+a..........+...+.+..+...�.+..xx�..
SUMMAAY OF MANNING'S N VALUES
River:St. Vrain kiver
x.x+,i+k+•ttrxwx,:+..:t+w:+txr:��x++a+r.x��•x�++w+:r3.�r+asi�+t+�x+s
* Reach • River Sta. • nl * n2 • n3 •
+��i�Rt��x���+�x.:+.�axi+ix+t++++t+*�i+xx++•:..iiR::+�x::i�::++sx+
'EXISTING LAKES * 71599 * .035' .04* .035'"
'EXISTING LAKES * 71254 * .035' .04* .035*
*EXISTZNG LAKES ' '10988 " .035* .09• .035*
*EXISTING LAiCES t '10673 *Inl Struct* � ''�
*EXISTING LAKES * 70493 * .035* .04* .035*
*EXISTING LAKES • 69651 * .035* .04• .035'
*EXISTING LAKES � 69589 * .035* .045" .035•
•EXISTING I.ARES • 69979 'Inl StluCt* * '�
kEXISTING LAKES * 69314 ' .035• .045* .035*
*EXZSTING LAKES ' 68798 * .035• .04* .035*
*EXISTING LAKES * 67578 * .035* .04' .035*
*EXISTING LAI(ES * 66768 ' .035* .04* .035*
�EXISTING LAKES • 66055 * .035' .04' .035'
*EXISTffiG LAKES * 65190 * .035a .045+ .035*
*EXISTING LAKES • 65125 *Inl Struct' • * .
tEXISTING I.AKES * 65050 * .035• .045* .035*
*I-25 to JUnction" 71770 * .07* .04• .07*
*I-25 to J�nction* �1765 * ���* .04• .0"1*
� +Z-25 to Junction* '11735 * .07F .04' .07*
Page 91
STVRAIN.rep
*I-25 to Junction* 71701 ' .07* .04' .07*
� tI-25 to Junction* 71634 * .07* .04* .07*
*I-25 [o JunC[ion' 71608 ' � .0�' .04• .07*
�I-25 to Junction* 71465 *La[ Structi * *
*I-25 to Junction* �ll68 " .07• .04* .07*
*I-25 to Junction* 70928 • .07• .04* .07'
*I-25 to Junc[ion• 70584 � *6at Struct* • R .
*I-25 [o Junction• 70235 • .07' .04* .07�
*I-25 ta Junction' 69741 * .07' .04* .07*
rI-25 [o Junction* 69359 `Lat S[ruct• ' •
•I-25 to Sunction' 69293 * .07• .04* .07*
*L25 to Junction" 68844 ' .0�* .Oa" .0�*
*L25 Lo JuncLion* 68234 * .09" .04* .07*
*I-25 to Junction* 67624 � .07' .04* .07�
•I-25 Co Junction* 67487 *Lat Struct* t �
*I-25 [o S�nc[ian* 66814 • .0�* .04• .07*
�PULL RIVER * 65735 ' .0�� .04* .0�*
+FULL RIVER ' 64600 ' .O�t .04* .07�
'FULL RIVER • 64120 ' .07` .04• .07*
•FULL RNER * 63640 ' .07' .04� .07�
*FULL AIVER * 6317�.5 ' .07* .04' .07*
•FULL RIVER * 62715 * .0�' .04* .07�
•FULL RIVER ' 59195 • .07' .04• .07•
•FULL RIVER ' 58515 * .07* .04' .07*
'FULL RIVER * 57401 � .07* .04t .0�'
+FULL ANER * 56496 ' .1� .04t .09*
*FULL RIVER * 56400 'Bridge ' * *
•FULL RIVER + 56290 ` ��4" .04* .07'
*FULL RZVER ' 55330 • .0�� .04* .07*
*FULL AIVER * 53970 ' .07* .04* .07�
•FULL RIVER ' 53240 ' .07� .04* .07t
*FULL RIVER ' 52370 * .07* .04' .07*
xx:.+��xrtrF..x.«x:.+.+<t♦xwx.:+::i�xi�i�«Rr.++++.+tiaa�::.�:tttit
�++i�«F�wxarx::::i:..«ai�+..++:�..ixx.�.+..+.:i..:.it���it+++t��k++.a��i+++wt���
� SUMMARY OF REACH LENGTHS �
River. St- Viain Aiver
+�k+ki+,.+++.+*x.«.xr:+�:,�+t+t+�.�i+..+::t+r:.+x.xk+.xxrxx::.r:x+:x.
* Reach * River Sta. * Left * Channel * Right '
��tx+�+��.rx.:::=:..rx.�...:+:t+t.x�r:::.::.::i..:Fi++�.:rra+tt+�+
*EXISTING LAKES ' 71599 * 345� 345* 345'
*EXISTING LAKES ' 71254 * 266* 266* 266*
*EXZSTING LAKES • 70988 • 495* 495• 495*
*EXISTING LAKES � 70673 *Inl Struct* • '
�'EXISTING LAKES t 70493 + 542* 542* 542*
•EXISTING LAKES * 69657 • 495" 362* 362*
*EXISTING LAKES * 69589 * 275* 275* 275*
*EXISTING LAKES * 69479 •Inl Struct" * *
iEXISTING LAKES * 69314 * 319a 516• 516*
*EXISTING LAKES E 68798 * 683" 1220* 1112�
*EXISTING LAKES * 67598 * 684• 810* 815'
•EXISTING LNCES * 66768 ' 713* "/13* ']13"
*EXISTING LAKES * 66055 ' 10"/5* 865* 216>
'EXISTING LAICES * 65190 " 140' 140* 140t
•EXISTING LAKES * 65125 'Inl Struct* • *
*EXISTING LAKES * 65050 * 0* Ot 0*
RI-25 to Junction'� 71770 * 5• 5* 5*
*I-25 to Junction* 71765 ' 30* 30" 30*
*I-25 to Tunction* 71735 ` 67* 67* 67*
*I-25 to Sunction* 71701 ' 34+ 34* 34*
*I-25 to Junction* �1634 • 26" 26* 26•
+I-25 to Junc[ion• 71608 * 376* 440* 483'
*I-25 to Junction* 71465 *Lat Struct* i *
*Z-25 to Junction* 71168 * 376* 440* 483*
*I-25 to Junction* 70728 R 800.5* 494* 504.5�
*I-25 to Sunction* 70584 *Lat Struct* * r
*I-25 to JunctionR 70235 * 800.5* 494' 504.5*
•I-25 to JunCtion` 69741 * 268.5* 948* 455'
*I-25 to Junction* 69359 'Lat Struct� * *
�I-25 to Junc[ion* 69293 ' 268.SR 449` 455*
. ^I-25 to Sunctioni 68844 ' 341.5* 610' 556*
� 'I-25 ta Junction* 68234 � 341.5* 610• 556•
Page 92
STVRAIN.rep
*I-25 to ,Iunction* 67624 * 684' 810' 815*
{ �I-25 to Junction" 67487 'La[ Struct* ` *
� *I-25 [o Junction• 66814 ' 1040* 1079* 1040*
*FULL RIVER * 65735 ` 95' 1135' 1025*
'FULL RIVER � 64600 ' 393.5* 480* 405'
*FULL RNER * 64120 ' 393.5* 480* 405*
•FULL RIVER * 63640 • 490i 462.5' 415*
*FULL RIVER ' 631�7.5 ' 490' 462.5* 415*
�FULL RIVER * 62715 ' 100• 3520* 100*
`FULL RIVER * 59195 ` 530* 680* 520*
'FULL RIVER " 58A5 " 7B0' 1114' 480R
*FULL RIVER ' 57401 • 830* 905* 790+
*FULL RIVER ' 56496 ' 233" 206* 180•
'FULL RIVER ' 56400 rBYidge ' * `
+FULL RIVER • 56290 ' 770* 960* 1165*
'FULL RIVER '" 55330 * 890* 1360' 1550*
rFULL RIVER " 53970 * 740" �30t 820x
*FI7LL RIVER • 5324� • 820* 8"]0` 840�
*FULL RIVEA � 52370 * 4* 4' ��
•*�.»rxx:�.atii+:.+��.rc.:���w:R�t��••.++.+i:..:.rxwr++.t+aww.x:+
4kl4Yiifftk£tt1*ihtYi4#+Av!*ii+Wti#kihFFf�tk4hMitttl+lkTkih+i4'.!£t4RifY#4+'Ak�!#i##1h
SUMMARY OF CONTRACTION AND EXPANSION COEFFICIENTS
Aiver: St. Vrain River
.,.....:..:a.s...x::+ . :.+a+.:......::.....,..:...:..+
+ ReaCh ' RiVer Sta. • Contr. ' Espan. *
•xw.++�++..i�+i««::++yxx++++.x:t�»�xi+F�+:.i:r�K.:ti+.
*EXISTING LAKES ` 71599 ' .1' .3*
'EXISTING LAKES * 71254 + .3* .5"
*EXISTING LAKES * 70988 R .3* .5'
*EXISTING LAKES ' 70673 •Inl Struct' `
*EXISTING LAKES ' 70493 • .3"' .5*
*EXISTING LAKES '� 69651 * .3* .5'
iEXI5TING LAKES * 69589 * .3* .5`
*EXISTING LAKES ' 69479 *Inl Strvct• ' .
' •EXISTING LAKES ' 69314 R .3` .5*
*EXISTING LAKES * 68798 .3* .5*
•EXISTING LAKES ' 67578 * ,1" ,3'
*EXISTING LAKES "' 66768 • .1* .3*
*EXISTING LAKES " 66055 * .1' .7•
�EXISTING LAKES ' 65190 ' .3• .5'
•EXISTING LAKES * 65125 'Inl Struc[' "
REXISTING LAKES ' 65050 • .3' .5*
*I-25 [o Junctian* 71'170 ' .3' .5•
*I-25 to Junction* 71765 * .3' .5•
'I-25 to 7unction* "11"/35 * .3* .5+
'I-25 to Junction^ �1701 * .3' .5*
*I-25 to Junction* 71634 * .3` ,5`
*I-25 to Junction` 71608 * .3• .5*
^I-25 to Junction' �1465 *Lat Strvct• �
'I-25 ta Junction� 71168 ' .3* .5*
*I-25 to 7unction* 70"]28 ' .3* .5*
*I-25 to Junc[ion* �0584 'Lat Struct' '
*I-25 t0 JunCtion* "]0235 ` .3• .5•
*I-25 to Sunctian* 69741 " .3* .5* .
rI-25 to Sunction* 69359 'La[ Struct` '
*Z-25 to Junction* 69293 ' .3* .S�
kI-25 to Junction• 68844 * .1' .3'
*I-25 to Junction* 68234 • .1* .3*
*I-25 to Junction* 67624 * �1` �3�
tI-25 to Junction* 67487 'Lat Struct* `
•I-25 to Junction* 66814 * .1` .3*
*FULL RNER • 65735 ` �1" �3'
•FULL RIVER * 64600 • .1* .3�
*FULL RIVER * 64120 ' .3" .5•
*FULL RIVER " 63640 * .3• .5'
•FULL AIVEk k 63177.5 * .3* �5'
*FULL RIVER * 62715 * .3' .5'
*FULL RIVER * 59195 * .3' .S*
*FULL RIVER * S8515 * -3* .5`
*FULL RZVER • 57401 " .3* .5'
' "FULL RIVER � 56496 i .3* .5*
Page 93
STVRAIN.rep
�FIILL RIVER ' 56400 r6Yidge * *
+FULL RIVER * 56290 * .3* .5•
� *FULL RIVER * 55330 ' �7" �5�
'FULL RIVER • 53970 ` .1* .3*
*FULL RIVER ' 53240 " .1' .3*
*FULL RIVER ' 52370 • .1* ,3«
}efxkia;tttktitt4#lfitill+Ft*Fi4fk+k}#h114tkR4Yf#�YYfxR
Profile Output Table - Standard Table 1
F*ilki#ii�R44i�t+ii#1!liAklkM#1fY�#f#�iiM*44ixi411tii114i11Ti4YAlt#FtxillxkFMfR�41x4#1*4fNfYAii�xkifi+i*♦
fii*fit! ♦kk##It41M�t#+fkAF��#Rt#1i#�if��fk
khReach"t�*f * River*Sta • Profile R Q Total * Min Ch E1 * W.5. Elev * Crit W.S. ' E.G. Elev
� E.G. Slope * Vel Chnl ` Flow Area • Top width * Froude # Chl '
y . * (cfs) R (ft) * (ft) * (ftl * (fU
* Ift/ftl • (ft/s1 ' (sq ft) * (ft) ' *
.+.......:....:.,...:.......:...:.......:.+.............:.......+.....�....:..++<.......«...:�:.......+...
.........t+.:.«...++....::x:+..+:....«+.:....:+..:+..+......«.
R*EXISTING LAKES * 71599 ' 100 yeaz * 1.00 ' 4824.00 * 4825.46 ' * 4825.46
t 0.000000 * 0.00 * 1140.31 ' 798.10 * 0.00 •
* EXISTING LAKES ' 71599 * 500 yeaz • 1.00 • 4824.00 * 4828.9� ' 4828.97
* 0.000000 • 0.00 * 4151.56 * 919.02 • 0.00 r
� EXISTING LAKES ' 71599 • 30 year � 1.00 " 4824.00 ' 4824.OB ' 4824.08
+ 0.000006 • 0.02 * 59.59 * 768.18 * 0.01 r
* EXISTING WKES ' 71599 * 50 year * 1.00 � 4824.00 * 4824.72 � 4824��z
* 0.000000 ' 0.00 * 557.09 • 777.92 • 0.00 � # *
t * ' ' � �
* EXISTING LAKES • 71254 • 100 yeaY * k 1.00 � 4824.00 • 4825.46 ' • 4825.46
� 0.000000 t 0.00 • 810.03 * 561.44 * 0.00 '
• �1254 * 500 year * 1.00 * 4824.00 '� 4828.97 " x q828.97
* EXZSTING LA}(ES 0.00 *
� 0.000000 * 0.00 • 3165.77 R 777.�5 ' + gg2q,08
* EXISTING LAKES ' �1254 ' 10 year ' 1.00 ' 4824.00 • 4824.�8 *
* 0.000014 R 0.02 * 40.82 * 546."19 * ���Z 4 *
` EXISTING LAICES * 71254 • 50 year * 1.00 * 4824.00 * 4824.�2 ' 4824.72
+ 0.000000 * 0.00 * 396.92 * 553.61 * x0.00 ' k *
* EXISTING LAKES ' 70988 * 100 yeaL ' h 403.'14 ' 9824-00 t 4825.45 * 4824.30 ' 4825.45
� k O.0OO18D • 0.64 ' 634.83 * 831.65 • 0.09 "�
'� EXISTING LARES * 70988 * 500 year ' 4692.77 • 4824.00 ' 4828.94 * 4825.53 * 4828.96
R 0.000115 * 1.11 ' 4249.38 * 930.7"/ ' 0.09 '
+ EXISTING LAKES * 70988 * i0 year * 1.00 ` 4824.00 • 4824.07 • 4824.02 " 4824.07
+ 0.000027 ' 0.03 � 30.54 * 795.25 ` 0.02 *
r EXISTING LAKES ' 70988 * 50 year * 82.43 ' 4824.00 * 4824.'12 * 4824.11 * 4824 J2
* 0.0000"/9 ' 0.26 * 312.72 * 811*74 T +0.06 * * ; ;
Y EXISTING LARES * �06+3 * * + Ine Stiuct + * * ? +
* EXISTING LAKES � 70493 • 100 yeai � * 403.74 ' 4824.00 • 4825.44 * 4824.30 • 4825.44
* 0.000188 • 0.65 • 623.42 " 913.68 * 0.10 �
+ EXISTING LAKES • 70493 • 500 year * 4692.77 * 4824.00 � 4828.83 * 4825.55 * 4828.84
• 0.000100 ' 1.03 " 4623.55 * 1040."17 � 0.08 �
* EXISTING LA7CES * 70493 • 10 year ' 1.00 ' 4824.00 ' 4824.06 * 4824.02 ' 4824.06
* 0.000041 * 0.04 * 26.68 • 877.15 " 0.03 *
* EXISTING LAKES * 70493 " 50 yeaY * 82.43 * 4824.00 * 4824.71 ' 4824.11 * 4824."/l
* 0.000084 `" 0.27 * 305.*8 * 894*31 * *0.06 * * * i
* EXISTING LA1(ES ' 69651 * 100 yeaz ' * 645.94 ' 4824.00 • 4825.36 • 4824-25 ' 4025.37
* 0.000121 * 0.50 * 1286.72 * 1172-45 * 0.08 *
* E}CISTING LAKES • 69651 * 500 year * 6291.08 * 4824.00 ' 4828.77 R 4825.11 * 4028.79
* 0.000113 * 1.12 • 5709.91 * 1267.90 ' 1.00 •O o4824.00 • 4824.05 * 4824.02 * 4824.05
• EXISTING LAKES • 69651 " 10 year •
* 0.000021 � 0.02 ' 44.58 � 1145.96 * 0.02 *
* EXISTING LARES * 69651 * 50 year * 182.70 • 4824.00 * 4824.65 * 4824.10 * 4824.65
• 0.000113 * 0.30 ' 615.R7 * 1158;16 ` Y0.06 * M * h
i * � Y M �
k �
� EXISTING IJ+ICES * 69589 * 100 year • 645.94 * 4824.00 * 4825.27 * 4824.35 + 4825.28
• 0.000592 * 0.94 * fi99.97 ' 1366.67 * 0.15 *
* EXISTING LAKES R 69589 ' 500 year * 6291.08 ' 4824.00 * 4828.73 • 4825.62 * 4828.74
Page 94
STVRAIN.rep
* 0.000110 � 0.95 + 6628.49 • 1465.43 * 0.08 i
� ` EXISTING LAKES * 69589 * 10 year � 1.00 � 4824.00 � 4824.02 * 4824.02 * 4824.02
* 0.001223 • 0.09 w 11.38 * 1325.25 * 0.11 �
* EXISTING LAKES + 69589 * 50 year + 182.70 w 4824.00 * 4824.56 * 4824.16 * 4824.57
* 0.000712 � 0.60 * 305.13 * 1343.24 * 0.14 �
* EXSSTING LAKES * 69479 � � i Inl Struct ' * * * +
x + . . * . ; . « +
' EXISTING LARES ' 69319 * 100 yeaY • } 645.94 � 4819.70 * 4821.75 * 4820.0'] * 4821.75
* 0.000126 * 0.60 * 1082.40 * 1384.50 * 0.07 �
" EXISTING LAKES ' 69314 ` 500 year * 6291.08 * 4819.70 • 4826.14 a 4821.36 * 4826.15
* 0.000038 ' 0.69 ' 9142.18 ' 1498.8"1 ' 0.05 '
* EXISTING LAKES * fi9314 * 10 year * 7.00 • 4819.70 • 4819.80 * 4819.72 * 4819.80
* 0.000008 F 0.02 * 50.33 * 1323.06 * 0.01 *
* EXISTING LAKES � 69314 * 50 year * 182.70 • 4819.70 ' 4820.']8 ' 4819.85 ' 4820.78
* 0.000086 * 0.32 * 566.94 * 1353.97 * 0.05 *
. i � K � � ' ' * + . +
a EXISTING LAKES * 68798 * 100 year * 726.59 * 4819.70 * 4821.68 * 4820.09 * 4821.68
' 0.000144 + 0.70 R 1041.96 * "]62.06 * 0.09 *
* EXISTING LAKES * 68798 * 500 yeal * 8271.30 " 4619.70 ' 4026.06 t 4821.68 * 4826.10
• 0.000164 ' 1.62 + 5240.25 * 993.40 * 0.12 +
* EXISTZNG LAKES ' 68796 * 1D year * 1.00 • 4819 JO * 4819.79 ' 4819.92 * 4819.79
* O.OOOOaB ' 0.02 + 47.73 ' 670.42 * 0.01 •
* EXISTING LARES * 68798 t 50 yeaY * 182.70 * 4819.70 * 482�.74 • 4819.86 " 4820.74
* 0.000080 * 0.34 * 539.88 • 714.32 i 0.06 "
* EXISTING LARES • 6"]5'JB * 100 year * e 726.59 * 4819.70 * 4821.37 * * 4821.39
* 0.000471 " 1.13 '* 649.47 * 408.08 • 0.15 *
� EXISTING LAKES * 67578 * 500 year " 8271.30 ' 4819.70 * 4825.48 * * 4825.65
' 0.000825 + 3.44 * 2530.87 * A8.12 " 0.25 *
' EXISTING LAKES � 675"l8 * 10 year * 1.00 � 4819.70 * 4819.78 • * 4819.78
* 0.000026 * 0.03 "' 28.79 + 391.�� * 0.02 F
l * EXISTING LAKES * 67576 ' 50 year * 182.70 * 4879.70 ` 4920.57 * * 4820.57
* 0.0002"]2 ' 0.56 * 330.01 * 389.81 * 0.11 *
� * EXZSTING LAKES � 66768 i00 year * * 726.59 * 4819."]0 ' 4821.19 ' + 4821.19 �
" 0.000145 ` 0.58 "' 1254.47 + 660.65 * 0.08 '
` EXISTING LAKES * 66768 � 500 yeaY * 11328.5'7 '� 4819.70 • 4825.07 * • 4825.17
* 0.000454 • 2.43 * 4716.30 * 909.89 * 0.18 +
� EXISTING LAKES ` 66768 * 10 year * 1.00 ' 4819.70 * 4819.77 ' • 4819."]"]
* 0.000009 * 0.02 * 54.40 t 832.00 * 0.01 *
"' EXISTING LARES • 66'/68 ` 50 year * 182."/0 r 9819."]0 * 4820.46 * * 4820.46
" 0.000089 * 0.29 * 631.85 " 845.20 * 0.06 '
* EXISTZNG LAItES • 66055 * 100 year * x 726.59 * 4819.70 " 4821.04 * * 4821.05
* �.0002'J4 • 0.75 * 9"]3.46 ' 732.65 * 0.11 •
` EXISTING LAKES � 66055 + 500 year * 11328.57 * 4819.70 * 4824.57 ' * ggyq_7z
' 0.00�881 • 3.17 * 3604.29 * 75'].15 • 0.25 R
* EXISTING LARES * 66055 * 10 year * 1.00 • 4819.70 � 4819."/6 * * 4819.76
• 0.000019 " 0.02 ' 41.64 + 717.14 * 0.02 •
� EXISTING LAKES • 66055 * 50 year * 182.70 � 4819.70 * 4020.37 * * 4820.37
• 0.000181 * 0.38 • 480.67 * '/25.78 * O.OB '
• + : + � * x R
x . � r � e
k EXISTING LAKES • 65190 > 100 year k 726.59 R 9819.70 * 4820.80 + 4819.94 * 4620.80
' 0.000303 * 0.61 • 1191.48 * 1095.76 * 0.10 *
* EXISTING LAKES * 65190 * 500 year • 11328.57 • 4819.70 * 4B23.B7 ' 4821.19 • 4823.97
* 0.000825 * 2.46 ' 4637.60 ' 1147.28 * 0.21 x
* EXISTING LAKES * 65190 R 10 year * 1.00 * 4819.70 * 4819.72 * 4819.72 * 4819.72
* 0.000391 • 0.05 * 21.12 * 1081.26 * 0.06 *
* EXISTING LAKES * 65190 • 50 year * 182.70 � 4819.70 + 4820.16 * 4819.80 * 4820.16
' 0.000361 * 0.37 + 492.80 * 1087.13 R 0.10 *
. . : + . ,.. « .
. + . . + k
" EXISTING LAKES * 65125 * R Inl Struct • • * .
+ « . . . .
� Page 95 * * * �
STVRAIN.rep
. . a . + i
� • EXISTING LAKES * 65050 * S00 year * 726.59 • 4812.00 * 4820.56 * * 4820.56
� * 0.000000 � 0.08 * 8980.60 ' ll07.28 "' 0.00 *
• EXISTING LAKES * 65050 • 500 year * 11328.57 * 4812.00 * 4823.50 • ' 4823.52
^ 0.000032 x 0.93 * 12295.48 ' 1195.54 * 0.05 *
' EXISTING LAKES ' 65050 * 10 year ' 1.00 * 4812.00 * 4818.48 • ' 4818.48
* 0.000000 ' 0.00 • 6707.96 ` 1080.96 * 0.00 "
* EXISTING LAAES * 65050 ' 50 year * 182.90 * 4812.00 a 4819.95 • * 4819.95
' 0.000000 ' 0.02 � 8306.12 * 1099.33 * 0.00 *
K � � � + ♦ • �
* I-25 [o Junc[ion ' "/1770 * 100 year * 16700.00 �' 4822.00 ' 4833.11 ' 4829.63 3 4833.96
* 0.002420 ' 7.38 * 2281.46 k 1862.61 * 0.45 *
k I-25 to Sunction " 71770 " 500 year + 41960.00 * 4822.00 * 4841.06 * 4833.96 ' 4842.32
* 0.001499 * 9.13 * 4896.55 ' 3307.35 * 0.40 *
* I-25 to Junction " 71770 * 10 year * 5950.00 ' 4822.00 * 4628.55 ' 4826.97 * 4829.07
* 0.003'798 � 5.79 ' 1028.28 ` 254.95 R 0.51 *
* I-25 to Junction * "11'170 * 50 year * 12850.00 * 4822.00 * 4831.57 • . 4828.83 * 4832.33
• 0.002865 ' 7.00 ' 1836.75 ' 298.36 * 0.48 * .
* i-25 to Junction * 71765 * 100 year * 16700.00 * 4822.70 i 4832.83 * 4830.04 * 4833.88
* 0.002925 • 8.53 * 2227.20 * 2141.80 • 0.51 *
* I-25 to Sunction * 71765 ' 500 year * 41960.00 * 4822 JO • 4840.68 * 4834.45 * 4842.22
* 0.001914 * 10.56 * 4721.67 " 2958.43 * 0.46 *
* I-25 [o Junction • 71765 ` 10 year • 5950.00 * 4822.']0 • 4828.28 * 4829.00 * 4828.99
' 0.004924 ' 6.'19 * 898.61 ' 576.21 ' 0.58 �
* I-25 to Junc[ion � 71765 * 50 year * 12850.00 * 4822.70 * 4831.27 • 4829.14 * 4832.25
* 0.003464 * 8.15 * 1764.+8 * 1698;37 r *0.53 * * * *
� I-25 to Junction * 71735 • 100 year * 16700.00 * 4822.34 * 4832.70 * 4829.92 * 4833.78
• 0.003050 * 8.52 * 2184.98 * 2198.53 " 0.52 *
* I-25 to Junction * 71735 ' 500 year * 41960.00 • 4822.34 ' 4840.69 * 4834.64 • 4842.11
• 0.001771 + 10.10 ' 4926.31 '� 2446.10 '" 0.44 �
* I-25 to Junction " 71735 • 10 yeat ' 5950.00 * 4822.34 * 482B.04 ' 4827.08 • 4828.81
* 0.006003 * 7.03 * 867.16 ' 602.54 * 0.63 *
{ ' 1-25 to Junction • "11735 ' 50 yeai • 12850.00 * 4822.34 * 4831.12 • 4828.99 " 4832.13
* 0.003724 ' 8.20 " 1693.60 ' 1929*42 ' *0.55 * 4 « *
• I-25 [o Junction • "]1701 * 100 yeai • 16700.00 * 4821.95 " 4829.64 • 4829.64 * 4832."/9
• 0.012576 ' 14.29 ' 1184.04 * 1170.51 " 1.00 R
• I-25 [o Junction * 71701 * 500 year * 41960.00 * 4821.95 ' 4835.04 ` 4835.04 * 4840.62
* 0.009927 * 19.13 * 2303.69 * 2375.78 " 0.98 •
* I-25 to Junction * 71701 '� 10 year * 5950.00 * 4821.95 * 4827.13 ^ 4826.47 * 4828.23
* 0.008513 * 8.42 * 706.99 * 292.91 • 0.76 *
* I-25 to Junction • 71701 * 50 year * 12850.00 ' 4821.95 * 4828.84 * 4828.66 * 4831.29
* 0.011657 * 12.SB * 1029.69 * 1105.56 R 0.94 R Y
* : � : x r �
x 1 t t � R
* I-25 to Junction * 91634 ' 100 year ^ 16']00.00 * 4819.15 • 4830.64 * 4825.36 * 4831.18
* 0.001185 * 5.94 * 3052.59 * 1947.58 * 0.33 *
* I-25 to Junction ' 71634 * 500 year * 41960.00 * 4819.15 * 4834.11 * 4829.90 t 4835 JB
* 0.002581 * 10.68 * 4464.68 * 2429.20 ` 0.51 *
* I-25 to Junction " "/1634 * 10 year * 5950.00 * 4819.15 * 4827.56 * 4822.56 * 4827."/1
" 0.000538 ' 3.14 � 1912.49 * 445.08 * 0.21 *
* I-25 to Junction ' '/1634 ^ 50 year ' 12850..00 * 4819.15 * 4829-79 * 4824.46 * 4830.18
• 0.000958 * 5.04 * 2725.59 * 1340.45 * 0.29 •
; t R Y R # f 1
� � 4 + •
* I-25 to Junction * "]1608 * 100 yeaY ' 16700.00 * 4818.10 ' 4830.63 • 4824.49 • 4831.13
* 0.000976 * 5.75 * 3229.93 • 1946.38 " 0.30 #
* Z-25 to Tunction ` 71608 * 500 year * 41960.00 * 4818.10 " 4834.08 R 4829.42 * 4H35.67
* 0.002274 ' 10.50 k 4681.56 * 2433.33 ` �.49 *
� I-25 to Junction * 71608 * 10 year * 5950.00 * 4818.10 * 4827.56 * 4821.54 * 4827.69
+ 0.000391 ` 2.93 '� 2065.08 * 471.57 * 0.18 *
* I-25 to Junction ' 71608 ' 50 year " 12850.00 * 4818.10 � 4829.79 * 4823.54 * 4830.14
t 0.000769 * 4.84 * 2894.68 * 1355.95 " 0.27 *
* + w x R a r
+ a x � x •
* I-25 to Sunction * 71465 * * La[ StlVct * ` ' �
x w k 1 k
* i # * F f # i
Page 96
STVRAIN.rep
: � a + k t
. • I-25 to Sunction � 71168 * 100 year a 16297.26 " 4818.20 * 4830.19 * 4825.84 * 4830.64
* O.OOll48 i 5.91 * 3767.31 ` 2097.39 * 0.33 *
* I-25 to Junc[ion �" 71168 � 500 yeaz � 37268.23 * 4818.20 * 4833.40 * 4829.37 * 4834.95
• 0.001997 * 9.34 < 5595.27 " 2354.55 * 0.45 *
* I-25 to Sunction r 71168 ' 10 year " 5950.00 * 4818.20 * 4827.31 + 4622.15 a 482"1.4"1
* 0.000583 t 3.40 * 2�15.81 * 1168.31 * 0.22 *
� I-25 to Sunction * "71168 * SO year r 72768.59 * 4818.20 * 4823.41 * 4824.39 = 4829.76
• 0.000973 * 5.16 * 3335.50 * 2017.90 * 0.30 *
+ y + + + � . +
* I-25 to Junction • "]0728 * 100 year * 16297.26 ' 4818.25 ' 4829.35 ' 4827.29 * 4629.93
* 0.001988 • 7.10 ' 3706.97 � 2164.24 * 0.42 *
* I-25 to Junction * 70928 + 500 year * 37268.23 * 4818.25 + 4832.27 a 4829.85 " 4833.35
" 0.002944 * 10.30 � 5856."1� * 2324.12 * 0.53 *
* I-25 to Sunction � 70728 • 10 year ' 5950.00 * 4818.25 ' 4826."16 • 4B22.8� ' 482'].0"1
* 0.001234 • 4.63 * 1810.60 • 1684.33 '� 0.31 �
' I-25 to Junction * 70728 ' 50 yeaz ' 12768.57 * 4818.25 * 4828.65 * 4825."74 4829.14
R 0.001']"/3 " 6.40 * 3188.97 ` 2124.00 • 0.39 '
t � * x * + } � � * r . :
' I-25 to Junction � "]0584 * * Lat Struct * � • *
s � k : f r R w ; x t x :
• I-25 to Jurtction * ']0235 ' 100 year ' 16055.06 • 4817.40 * 4828.61 * 9826.38 * 4828.95
* 0.001522 * 6.02 * 4845.55 ' 2037.18 * 0.36 •
# I-25 to Junction * 70235 • 500 year * 35669.92 • 4817.40 ' 4831.27 * 4828.26 * 4831.87
• 0.002112 ' 8.50 * "]496.61 " 2159.65 ' 0.45 *
F I-25 to JunCtion * 70235 ' 10 year ' 5950.00 * 4817.40 * 4826.25 * 4822.88 ` 4826.44
• 0.0010"/0 * 4.74 ' 2574.05 * 1525.18 " 0.29 *
* I-25 to Junction * 70235 ' 50 year * 12668.30 ' 4817.40 * 4827.97 * 4825.88 * 4828.26
' 0.001389 • 5.47 * 4220.09 " 2004.85 • 0.34 *
k I-25 to Junction • 69741 • 100 year * 16055.06 * 4816.45 < 482"1,96 * 4826.74 * 4828.11
' 0.001808 * 6.42 ' 5059.98 * 1919.54 • 0.39 •
{ * 1-25 to JUnctiOn * 69"141 ' 500 year • 35669.92 * 4816.45 * 4830.17 • 482�.81 * 4830.73
" 0.002333 * 8.65 * 8096.96 • 2001.80 " 0.47 '
* I-25 to Junction * 69"]41 ' 10 year • 5950.00 • 4816.45 • 4825.50 ' 4822.59 • 4825.78
* 0.001582 • 4.88 * 2328.23 * 1768.58 * 0.35 *
* I-25 [o Junctio� • 69741 � * 50 year * 72668.30 * 4816.45 * 482^.16 * 4825.73 • 982'1.48
' 0.001"114 * 5.95 * 4321.22 ' 1888.78 * 0.38 *
* I-25 to Junction * 69359 * * ` Lat Struct * * * • �
+ + ; . k : * h � * + + •
I-25 to Junctio� • 69293 • 100 yeaY � 15974.41 * 4815.60 + 4826.84 * 4825.63 * 4827.25
' 0.001963 ` 6.81 * 5113.90 • 1675.39 ' 0.41 *
* I-25 to Sunction ' 69293 • 500 year * 33856.30 * 4815.60 • 4829.20 * 482'/.13 < 4829.E9
• 0.002144 * 8.34 t 8512.8] * 1839.83 + 0.44 '
' I-25 to Junction * 69293 * 10 yeai • 5950.00 * 4815.60 * 4824.44 * 4821.74 + 4824.90
* 0.002175 • 5.81 * 1770.58 ' ll99.94 * 0.41 <
* I-25 to Surtction * 69293 • 50 yeaY * 12668.30 • 4815.60 * 4826.21 '� 4825.22 4 4826.62
* 0.002013 * 6.55 ' 4202.13 ' 1640.88 ` 0.41 *
+ . : . + w + +
� + • � • s
* I-25 to Sunction "' 68844 • 100 year * 15974.41 r 4814.75 • 4625 J9 * * 4826.29
* 0.002141 * 7.44 * 5005.60 * 1611.36 * 0.43 *
* I-25 to Sunction * 60844 ` 500 year * 33689.70 * 4814.75 * 4828.19 * ^ 4828.72
* 0.002145 * 8.70 ' 8970.83 * 1721.91 r 0.45 *
* I-25 to Junction * 68044 * 30 year * 5950.00 * 4814.75 * 4823.43 * * 4823.93
* 0.002066 * 5.99 * 164�.21 * 1229.50 * 0.40 "
* I-25 to Junction R 68844 * 50 year * 12668.30 * 4814.75 * 4825.20 * * 4825.68
• 0.042047 * 6.96 * 4063.86 * 1577.42 ' 0.42 *
' I-25 to SURCtion ' 68234 ' 100 yeaY ' 15974.41 * 4814.00 * 4824.64 * ^' 4825.09
* 0.002009 ' 7.54 * 5425.09 ' 1712.05 ' 0.42 *
* I-25 to Junctio� * 68234 � 500 year * 33689.70 * 4814.00 * 4827.15 '+ * 4827.57
• 0.001845 * 8.4� 3 9922.80 ' 1844.48 ' 0.42 *
I-25 to Junction + 68234 * 30 yeat ' 5950.00 * 4814.00 * 4822.41 ' * 4B22.81
Page 97
STVRAIN.rep
* 0.001659 * 5.78 * 2072.85 * 1028.69 * 0.3� • '
I-25 to Junction * 68234 • 50 year " 12668.30 � 4814.00 * 4824.04 * * 4824.51
* 0.002027 � 7.26 * 4410.82 • 1657.33 ' 0.42 R
* I-25 [o JUnCtion 3 67624 * 100 yeaY t 15974.41 * 4813.45 * 4823.60 * * 4823.99
� 0.002006 * 6.82 * 5485.17 • 1560.42 * 0.41 '
• I-25 to Junction t 67624 * 500 year * 33689.70 rt 4813.45 • 4826.11 * * 4826.52
* 0.001865 * �.72 ' 9702.34 • 1689.01 * �.41 *
* I-25 [o Sunction i 67624 * 10 yeaz w 5950.00 ` 4813.45 ' 4821.39 * * 4821.77
* 0.001981 i 5.76 * 2191.38 " 1387.82 • 0.39 *
* I-25 [o Junction • 67624 ` 50 year • 12668.30 * 4813.45 * 4822.99 * * 4823.34
R 0.002017 * 6.57 * 4552.35 * 1515.46 t 0.91 •
+ � � * x � w •
{ I-25 to JunC[ion • 6�48"/ ' � * Lat StTUCt * ' ' * *
� * } * i * F + + ; # R h
k Y i Y + f
• I-25 to Junc[ion ' 66814 ' 100 year * 15974.41 * 4B12.B5 ` 4ffi2.24 ' * 4822.47
. • 0.001612 * 5.82 * 6�73.00 " 15'/3.28 * 0.37 •
' I-25 to Junction * 66814 a 500 year * 30632.43 ' 4812.85 * 4824.94 * * 4825.20
* 0.001393 * 6.60 • 70552.61 • 2230.80 � 0.36 �'
* I-25 to JunCtion ' 66874 * 10 year " 5950.00 ' 4812.85 ' 4820.10 * * 4820.31
* 0.001588 + 4.70 * 2828.28 * 1440.25 * 0.35 *
• I-25 to Junction * 66814 ^ 50 year * 72668.30 � 4812.85 * 4821.63 * * 4821.86
• 0.001620 ' 5.53 * 5131.43 • 1552.07 * 0.36 *
. . . . s . . .
a FULL RIVER ` ` 65735 * 100 yeaY • 16700.00 • 4811.95 * 4820.09 * • 4820.45
* 0.002774 ` 7.30 "' 563�.37 * 1881.63 ` 0.48 '
* FULL RIVER * 65735 � 500 year ' 91960.00 ` 4811.95 * 4823.01 " * 4823.39
' 0.002361 � 8.44 • 11396.16 • 2069.14 * 0.4"] *
i FULL RIVER * 65735 * 10 yeaz � 5950.00 ' 4811.95 * 4818.09 * ' 4818.39
• 0.002528 ` 5.62 * 23"/6.17 • 1307.39 • 0.43 '"
* FULL RIVER * 65"]35 * 50 year � 12850.00 ' 4811.95 • 4819.49 " * 9fl19.84
• 0.002768 ' 6.89 * 4542.49 "' 1755.19 * 0.97 '
* eULL RIVER # * 64600 * L00 year • 16700.00 • 4810.85 * 4817.95 * * 4818.09
* 0.001785 * 5.44 * 6906.86 * 1784.87 * 0.36 •
* FOLL RIVEA ' 64600 * 500 yeaz * 41960.00 '� 9810.85 * 4820.53 ' ' 4820.81
• 0.G02608 • 8.21 * 12204.43 * 241o.a'0 * 0.48 •
* FULL RIVER ' 64600 � 10 year '� 5950.00 R 4810.85 • 4816.06 * • 4816.15
* 0.001709 * 4.24 " 3586.69 * 1725.57 ' 0.35 •
* FULL RIVER t 64600 " 50 yeac * 12850.00 * 4810.85 • 481"i.35 * * 4817.47
* 0.001792 • 5.11 * 5833.65 * 1765.92 ' 0.37 •
. , j : * . * . +
* FULL RIVER * 64120 * 100 yeai ' 16�00.00 ' 4810.20 * 4817.12 * 4815.32 • 4817.28
* 0.002075 ' 5.77 ' 6589.68 * 2214.99 * 0.40 *
* FULL RIVER * 64120 " 500 year * 41960.00 ' 4810.20 * 4819.53 * 4816.�6 * 4819."/7
* 0.002353 • 7.61 * 12733.82 * 2507.01 * 0.45 *
* FULL RIVER " 64120 • 10 yeai • 5950.00 * 4810.20 • 4815.28 • 4814.40 • 4815.39
' 0.001888 * 4.38 " 3380.59 • 1692.78 • 0.36 "
* FULL RIVER ' 64120 • 50 year * 12850.00 • 4810.20 * 4816.47 * 4815.06 * 4816.62
• 0.002275 * 5.62 " 5410.05 ' 2122.56 ' 0.42 •
x � 4 i ; : r •
* FULL RIVER * 63640 * 100 yeaY • 16700.00 ' 4809.55 ' 4816.29 ' 4814.45 * 4816.44
* 0.001934 • 5.47 * 665'7.61 ' 2220.55 " 0.39 •
* FULL RIVER * 63640 * 500 year * 41960.00 * 4809.55 R 481B.59 R 4815.75 * 4818.81
�' 0.002222 * 7.24 * 13718.91 * 2843.90 R 0.44 *
* FULL RIVER * 63640 * 10 year * 5950.00 • 4809.55 * 4813.60 * 4812.25 • 4813.93
� 0.006929 * 7.06 * 2124.35 * 1846.24 ' 0.6'1 *
�' FULL RIVER * 63640 • 50 year R 12850.00 ' 4809.55 * 4815.49 * 4814.05 * 4815.65
* 0.002378 ' 5.53 * 5274.23 * 2172.29 * a.42 •
. . + . t . . .
x x + • • *
* FULL RIVER * 63777.5 * 100 year * 16700.00 • 4807.67 " 4815.79 * 4811.01 * 4815.86
� 0.000898 * 3.84 * B566.B1 * 2657.21 * 0.27 *
t FULL RIVER * 63177.5 * 500 year * 41960.00 ` 4807.67 + 4818.26 * 4813.46 * 4818.33
3 0.000540 * 3.69 * 21409.09 * 2866.11 w 0.2z •
� FULL RIVER * 63177.5 ' 70 year * 5950.00 ' 4807.67 * 4812.97 * 4809.56 * 4813.02
Page 98
STVRAIN.rep
* 0.000813 * 2.66 * 3868.62 * 2208.48 � 0.23 *
` FULL RNEA t 63177.5 * 50 year * 12850.00 * 4607.67 + 4814.92 * 4810.56 R 4B14.99
� 0.000978 * 3.65 * 7050.06 * 2630.65 * 0.2� *
. . . x + + . .
+ FULL RIVEA * • 62�15 * 100 year k 16700.00 * 4805.80 � 4815.37 * 4810.54 * 4815.46
' 0.000994 ' 4.22 8265.00 ' 3214.35 + 0.28 •
* FOLL RIVER * 62715 R 500 year * 41960.00 * 4805.80 * 4818.10 * 4813.33 E 4816.14
' O.U00313 • 2.87 * 26680.65 * 3292.99 � 0.16 �
* FULL RIVER * 62715 * 10 year • 5950.00 • 4805.80 * 4B12.66 * 4809.00 • 4812.']0
* 0.000679 * 2.68 * 3798.32 + 2573.00 * 0.22 *
* FULL RIVER ' 62715 � 50 yeaY • 12850.00 • 4805.80 t 4814.53 * 4810.04 ' 4814.60
* O.OOOB71 * 3.68 * 6'777.07 * 3161.17 * 0.26 *
. x « a « . . �
' FULL RIVER * + 59195 t 100 yeaY * 16700.00 • 4803.33 • 4814.36 ' 4811.14 * 4819.50
' O.OOOB85 ' 4.56 " 7619.76 * 3183.64 * 0.28 '
• FULL RIVER � 59195 ' 500 yeaY * 41960.00 * 4803.33 * 4817.42 * 4813.48 * 4B17.69
* 0.001215 * 6.56 "' 13042.32 * 3342.61 t 0.34 �
* FULL RIVER • 59195 * 10 yeaz * 5950.00 4803.33 * 4811.40 " 4809.16 " 4811.55
' 0.000990 ' 3.86 < 2630.35 * 2630.44 * +0.28 t
* FULL RIVER F 59195 • 50 year * 12850.00 * 4803.33 * 4813.47 ' 4610.57 ' 4813.61
* 0.000939 * 4.36 " 6108.18 • 3145.15 • 0.28 *
' FULL RIVER ' * 58515 * 100 year ' 16700.00 4803.85 ' 4814.05 * 4809.84 � 4814.13
' 0.000406 ' 3.21 * 9208.46 * 2605.10 ' *0.19 +
• FULL RIVER * SBAS * 500 yeaT " 41960.00 ' 4803.85 * 4817.18 * 4811.53 * 4817.26
* 0.000348 ' 3.63 21355.62 * 2678.22 * 0.18 *
* PULL RIVER * 58515 * 10 yeai * 5950.00 + 4803.85 * 4811.14 * 480B.43 t 4811.18
* 0.000315 * 2.17 * 5050.94 * 2570.83 " 0.16 •
* FULL RIVER t 58575 * 50 year * 12850.00 ' 4803.85 * 4813.17 * 4809.4"7 * 4813.24
* 0.000379 ' 2.90 * 7946."/6 * 2596.16 * 0.18 •
* FULL RIVER µ ' 57401 * 100 year * 16700.00 * 4803.00 * 4813.53 * 4810.36 "' 4813.66
• 0.000'/37 * 4.29 * 7'166.1'] * 2805.83 * 0.25 �
/ * F[1LL RIVEA + 5�401 * 500 yeaz � 41960.00 * 4803.00 * 4816.76 * 4811.99 * 4816.89
�' ' 0.000591 * 4."/3 * 17739.99 * 431"].63 • O.Zq «
' FULL RNER ' ` 5"/401 * 10 yeaY * 5950.00 * 4803.�0 " 4810.63 * 4808.86 • 4810.")9
* 0.000756 ' 3.36 f 3641.13 * 2629.50 * 0.24 "
* FULL RIVEA * 57401 � * 50 year * 12850.00 * 4803.00 ' 4812.65 k 4809.96 • 4812."]8
' 0.000'!47 ' 4.03 * 6488.95 • 2784.38 * 0.25 '
t F[ILL RIVER # * 56496 * 100 year * 16700.00 * 4802.55 F 4812.86 * 4809.43 * 4813.03
* 0.000710 F 3.27 * 8783.88 * 2711.B8 * 0.19 *
* FULL RIVER • 56496 * 500 year * 41960.00 ' 4802.55 • 4815.55 * 4811.69 * 4816.02 .
'" 0.001563 • '1.73 * 14435.84 * 5747.39 * 0.39 *
' FULL RIVER * 56496 ' 10 yeaT " 5950.00 * 4802.55 * 4809.68 * 4806.20 ' 4809.92
* O.oa1o56 * 4.09 ' 1900.14 * 2293.53 * 0.29 •
• FULL RIVEA * 56496 * 50 yeai * 12850.00 ` 4802.55 • 4812.01 * 4808.54 � 4812.16
" 0.000666 * 3.64 * 7393.75 ' 2562.29 w 0.22 '
* FULL RIVER * w 56400 * � F * Hridge " * * R :
*' R * * + * • * + j . • R
' FULL RIVER * * 56290 • 100 year * 16"100.00 * 4802.15 • 4810.50 * 4808.36 * 4811.96
R 0.004655 * 9.88 * 2039.08 " 2079.3� * 0.61 *
* FULL RIVER * 56290 * 500 year " 41960.00 * 4802.15 * 4813.20 * 4812.91 * 4819.32
� 0.003735 * 10.70 ` 6400.60 * 3501.21 * 0.57 *
* FULL RIVER • 56290 R 10 year * 5950.00 * 4802.15 * 4808.20 * 4805.35 * 4808.60
' 0.001883 * 5.09 * 1168.99 * 199.48 " 0.37 *
* FULL RIVER * 56290 * 50 year � 12850.00 * 4802.15 * 4809.87 * 4807.40 * 4817.00
* 0.00386'1 * 8.55 * 1502.35 " 200.'10 * 0.55 t
r + . . k x . .
' FULL RIVER * * 55330 "' S00 year * 16700.00 * 4799.75 * 4809.05 * 480'1.29 * 4809.25
* 0.001384 * 5.31 * 7085.84 * 3487.39 * 0.34 i
" FULL RIVER * 55330 * 500 yeaT • 41960.00 4799.75 • 4811.50 • 4808.90 '� 4811.79
* 0.001739 ' '].09 • 13840.95 " 3941.51 • *0.40 *
� ' FULL RIVEA + 55330 • 10 year * 5950.00 * 4"/99.75 + 480'1.16 * 4804.39 * 4807.29
2age 99
STVRAZN.rep
* 0.000916 � 3.76 R 3595.08 • 1692.43 � �.2� '
� * FOLL RIVER * 55330 * 50 year * 12850.00 � 4799.75 + 4808.48 * 4806.90 " 4808.66
• 0.001276 ' 4.89 * 5960.05 * 1889.74 * 0.32 •
, . x « + • * '
+ . + . + R
t FULL RIVER ' 53970 • 100 year • 16700.00 t 4798.15 ` 4807.91 ' 4806.32 • 4808.03
* 0.000822 " 4.52 " 10169.% * 3166.43 ' 0.27 *
` FULL RIVER * 53970 • 500 year ' 41960.00 ' 4798.15 • 4809.85 * 4007.57 * 4810.06
� 0.U01391 ' 6.71 • 16887.13 * 3723.70 " 0.36 *
� FULL RIVER • 53970 * 10 year * 5950.00 * 4798.15 * 4805.76 * 4803.03 * 4805.97
* 0.001197 * 4.53 + 3443.18 F 2972.22 • 0.31 `
* FULL RIVER * 53970 * 50 yeaY • 12850.00 • 4798.15 * 4807.37 * 4806.04 ' 4807.49
* 0.000802 ' *.�9 " 8464.95 ' 3136+53 ' ;0.26 ^ « *
. . : . + :
* FULL RIVER * 53240 * 100 yeai * 167�0.00 ' 4798.15 " 4805.38 • * 4806.4'/
i 0.008784 • 11.09 ' 3488.32 • 3060.55 ' 0.82 *
* FULL RZVER * 53240 * 500 year ' 41960.00 * a798.15 �' 4807.42 * " 4808.09
* 0.00596"/ * 11.07 t 10005.36 t 3318.62 ' 0.70 �
• FULL AIVER * 53240 * 10 year " 5950.00 '" 4�98.15 • 4803.71 � ' 4804.29
R 0.005196 ' 7.20 * 1409.59 * 604.14 • 0.60 *
* FULL RIVER * 53240 ` 50 year * 12850.00 ; 4798.15 * 4804.92 * * 4805.9�
+ 0.008385 * 10.38 * 2208.60 * 803.46 * 0 J9 *
+ . . . : .. • a
• FULL RIVER t * 52370 * 100 year * 16700.00 * 4795.55 " 4802.40 * 4801.51 * 4802.60
� 0.002501 • 5.57 * 6921.12 t 2727.47 + 0.43 •
• FULL RIVER " 523"]0 ' 500 yeai ' 41960.00 • 4795.55 �` 4804.61 * 4802.57 • 4804.88
* 0.002502 * 6.90 * 13162.78 k 3116.32 k 0.45 *
* FULL RIVER ' 52370 " 10 yeaz " 5950.00 • 4'195.55 * 4800.97 ' 4800.64 * 4801.19
* 0.002503 * 4.77 ' 3078.47 * 2662.88 ' 0.41 '
' FULL RZVER ' 52370 � S0 year • 12850.00 * 4�95.55 ' 4801.97 * a801.29 * 4802.16
* 0.002500 * 5.32 • 5750.11 • 2710.70 " 0.42 *
+ti.+.++ix+xx<::xi».+««x.t+�.;t.Kx+.+rrr++�r::w+t*r�+ttix..++:...::ktr.t+i�t+•:+�rr:x:t�+.+.++�Riirw:.�ti�.
tx+:.x.i.�+::�:.i+.:i+++:tx...:+*+«.e++r,.�it++rx�t+r,�rt+��::x+�a�.
l
Page 100
APPENDIX C— Floodway Analysis
100-year Pre-Project model
(NAVD 88 Datum) with CHECK-RAS output
Pre & Post Construction Modei Plan: Post Floodway 5/4l2006
, ����� Legend
71599 0
� 7'1768 ...� 77254 WS t00year
�� 70728 .�. 70988 Ground
.
� 70493 Bank Sta
� . . 7023 �.�.� .
� 697 � 69657 ��
� 69589 Lat Stmct
�. ss 3 ��;:
.�:'z;
, �� 68844 68798
682 i'
'' 87 ,�67578
S".F!
— i
�}y ."66768
:„',• :
66055
657 5
65190
64600
64120
63640
a �� �, 63177.5
62715
'.:;.�'� °�;��.59195
t � '
�5'
"�'. 585'15
x'F w:'
x
' y '•i v.,J
y; -�5740'I
56496
� y ;:=',55330
. 411 '���i��..
�,'rf �q'r^'..
CiY Y$�
�v�
. :>� `x'�":�� 53970
�" ��
. ��'_ �r�,. '.
�;f. _ ,,;� ; 53240
.. .:.-,...._--- -. _ 71770
71599
. .. ..-. 71254
- - 70728� � .....
._..___.__ 5 70493
—---�— •_ ..--^ 69 .. 69651
I-25 to Junctiom•--�--� pg � 69589
68 68798 EXISTING LAKES
682
<
---�--�-� � 6 67578
�
. . ------- 66 66768
66055
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.__.�..__.._. ........_........._.__
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RS=6681E RS=65IJ5
0'/ II �'- 0> ---�
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�a �a LeBme
....__-_-•__-:___ ___.....�______..
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.-._._._.__re---.
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� dB]0 �Oq p-- 0] � �epantl <836 I 0���� LepenO
tl
_-__-__•__ ____._.�___
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EG m0 year <82a EG�00 year
WS f OO Year W 5 IDO year
erou�a cm oase�i a�yeme
<eas eanws� aazz anioorear
Encroacnmem Gmuaa
•
IreX
•
Bank SN
9820
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_ �820 = <01B
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qi smwn Inl s�awn(nl
j Pre&Po51 Conslruclion Mo�el Plan Posl FboRway 942006 Pre 8 Post Con5tmtli0n MoaH Plart Post FIooP�ray SI02006
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.._..._._-_�___.
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suuon Inl s�anon�n7
Pre 8 Posl Conslruc�ion Nqde1 Plart Posl FIoWv.2y 5I42006 Pre 8 Posl Conslmclian Model Plan:Posl FlooQr2y 5/42006
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.__.__.___ .__.__..___
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WS baseN�drgel Ee WS bazeH Idryel Ee
d9J5 ._.._._......
__....._____
EG t W year EG too year
W 5 WO year W 5 t0o year
cri�ease.tar�eiae °a'o Crneue+iwyeice
a83o Cm IDO year Cm tOp year
GmuM GmunE
_ ♦ —
I�Mry I�MH
Bank Sla Bank SU
aa25
Encroaclmenl JB30 EncmacM1menl
_ <830 =
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aeis
aaw �
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i
t Pre 6 Posl Cons�mtlian Motlei Plarc Posl FIOOM2y SIOROOfi Pre 8 Post ConsWtlion Hbdel Plart Posl FbOM2y 962006
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CB]0 I� 0]--�O�--Oi—� 4830 �.W—+�.�-0] +I
d LepenO 4 LepmU
..._...__..._..___ ____...._......_.__
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_-__.._____...__ __....___...._._...
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aB25 WSt00year C825 WS100Kar
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GrounJ GmuM
J ♦
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_....._.__.. ............._.___..
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.— _._._____.._-__.
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� Pre 8 Post Conslrucllon Moael Pian:Posl FlooOvay Sld(1406 Pre 8 Post ConsWpion M00eI Plart Posl Floo�x2y SIa2006
RS=56C00 BFBriGgealWLRll R5=56J29L0��C��O�UNttROADll(NEWBRIDGE)
�� _o�.� a�'I.f m--•�
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�
__..._.._.._ .______�..._...__.
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S
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(
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i
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{
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Pre 8 Posl GonslN[lion MoOel Plan-Posl Floo�way 5I4I2006 Pre&Pasl Conslnmllon MOdel Plan:Pasl FlooNaay SI02406
� R5=55]]OTOeroµq�ap�emlo�malnnlo�l�5wis5MonwasUMenlm R5=5]9]OT�¢bry�n0�rInlamalon�a�N5[roS15¢tlUnwaslaken(m
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._.�__.__- .___-__..._g__
EG Gase�t u�gei Ue EG OaseN�ar e�Ee
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__._._._. ..............._......._
EG�aoyear � EGIDOyear
WS 1 W year WS 100 year
0815 Cn�Oase+llaryelGe �a15 CnlbaseHlaryeltle
Crn 100 Year Cm 10o yeu
GrounG GmuM
J
I�reH IrieH
•
9anF Sla Bank Sla
__.. ......_._._......
0810 Enwac�ment 0910 EM�Ox�menl
— _ } !) y
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aeoo aeao
E)95 � E]95
f00p ]Wp J000 <OW SOW 6000 ]000 8000 1000 200D 30W <OW 5000 fi0W ]000
� S�aeonlXl Suuon(tt�
Pre 8 Post Consvutlion Moael P�art Posl Flooaxay 9<Q006 Pre 8 Posl Conslrutlion MoOel Plan:Post Floulway 5/42006
R5=5J3dOT�eb�gfdp�<FilOtma�anl0l1�6<mW5MJonwa5ldk¢n1�0 fl5=53J]OT�lbpoanq�i[�n101mi4nIOr1�6cmSs¢ctianwa5laM¢nlm
. aB20 ��—�0)--�I �'—.0]—�.�—.W
� a Le9entl 4825 a LegenO
f _ . ....... ._.._._�.....__...
EG base�l NrgH Ge EG Ga5M1 iarye�4
...__._...______
EG 100 year W S Gaze+1 tayN Ge
.._..._..._.._._.....
ws easni urqe�ae EG ion yea.
CnitoOyear aB]o wStooyear
a615 W S 10p year Cnl DueN larget Ge
GrouM Gnt 100 yrar
Bank S1a Gmu�M
EzmaUimml p815 BaJc5U
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aeio
`o `
_ ' <eio
w w
4805
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��
"_." ".._._..(. ._...
i. .
�800
ae0o
a�ss a�n
, i000 z000 a000 a000 soao s000 �000 s000 i000 x000 �000 �aoo s000 soao �000 e000
s��o��n� sum��n�
CHECK-RAS Program: Floodway Check
Encroachment Method, Starting WSEL, Floodway width, and Surcharge Review
Project Fi1e: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.prj
Plan File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.p01
Geome[ry File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\51'VRAIN.g03
'a File: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.f03
�rt Fi1e: P:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.fw
.�cted profiles: 100 year;base+l target de
Date: 5/4/2006
Time: 10:23:45 PM
SECNO Method Surcharge EncStaL EncStaR LStaEff RStaEff Structure
_'____________'_____'_'____'_____'____'_'____'_____"'_'__"__'_______"_'"""
St. Vrain River,EXISTING LAKES
71599 972.35 1770.45
71599 0 0.98 1775 1858 1775 1�77.46
71254 1508.69 2070.13
71254 0 0.91 2045 2112 2045 2075.2
70988 1670 2112
70988 0 0.82 1910 2112 1910 2112
70673 0 o Inline Weir-Up
70673 0 0 Inline Weir-�n
70673 0 0 0 0 0 0 Inline Weir-Up
70673 0 0 0 0 0 0 Inline Weir-Dn
70493 1650 2087.66
70493 0 O.B 1820 2112 1820 2091.95
69651 1151 2300.4
69651 0 0.62 1800 2129 1800 2104.21
695B9 1299.8 1968.33
69589 0 0.32 1650 1987 1650 1969.91
69479 0 o Inline weir-Up
69479 0 0 Inline Weir-Dn
69479 0 0 0 0 0 0 Inline Weir-Up
69479 0 0 0 0 0 0 Znline Weir-Dn
69314 1420 1953.86
69314 0 1 1560 1987 1560 1959.15 �
68798 1455 1995.07
68798 0 0.98 1600 2052 1600 2008.03
"'�78 2036.4 2444.48 �
'8 0 0.98 2100 2528 2700 2463.03
�8 1528.05 2388.7
��i68 0 0.98 1870 2402 1B70 2400.41
66055 1085.79 1818.44
66055 0 0.91 1450 1824 1450 1822.79
65190 � 1069.91 2165.66
65190 0 0.99 1205 2173 1205 2171.7
65125 p 0 Inline Weir-Up
65125 0 0 Inline Weir-Dn
65125 0 0 0 0 0 0 Inline Weir-Up
65125 0 0 0 0 0 0 Inline Weir-Dn
65050 989.72 2097
65050 0 0.43 1300 2097 1300 2097
St. Vrain River,i-25 to Junction
71770 994.44 1293.21
71770 0 0.09 1000 1277 1000 1277
71765 1943.69 2245
71765 0 -0.03 1976 2271 1976 2245
71735 1887.�8 2211
71735 0 -0.27 1991 2211 1991 2211
71701 1962.31 2158
71701 0 0.06 1879 2206 1962.05 2158 �
71634 � 1878.07 2270
71634 0 0.24 1859 2200 1874.7 2200
71608 1879.49 2283
71608 0 0.24 1850 2201 1875.75 2201
71168 2002.93 2563
71465 Lateral weirs
71168 0 0.25 1933.5 2510 1999.09 2510
70728 2129.39 2866
70728 0 0.33 2129 2780 2129 2780
70235 2079.43 3068
70584 Lateral Weirs
70235 0 0.43 2069 2950 2069 2950
l 2027.38 3270
1 0 0.56 2009 3130 2011.45 3130
�3 2037.01 3477
69359 Lateral Weirs
69293 0 0.35 2030.5 3074 2030.56 3074
68844 2053.34 3718.64
68844 0 0.13 2052 3000 2052.49 3000
68234 1016.94 2728.99
68234 0 0.32 1000 2150 1015.69 2150
67624 2546.OB 4228 12
67624 0 0.33 2528 3750 2543.38 3750
66014 2402.41 4408.12
67487 Lateral Weirs
66814 0 0.33 2402 3600 2402 3600
St. Vrain River,FULL RIVER
"735 2112.28 4251.16
35 0 0.41 2161 3180 2161 3180
�.00 1443.99 3228.86
_000 0 0.35 1483 2860 1483 2860
64120 1347.19 3152
64120 0 0.3 1398 2600 1398 2800
63640 1243.64 2992
63640 0 0.14 1313 2750 1313 2750
63177.5 1320.54 3079
63177.5 0 0.14 1326.5 3079 1326.5 3079
62715 1343.99 3ll2
62715 0 0.19 1340 3112 1343.58 3112
59195 1288.3 3069
59195 0 0.4 1299 3069 1299 3069
58515 2256 3687
SB515 0 0.42 1620 3542 2256 3542
57401 2532 3986
57401 0 0.52 2250 4049 2532 3986
56496 2027 3721
56496 0 0.36 2565 3640 2565 3640
56400 3465.24 3664.54 Bridge M1-Up
56400 3465.52 3664.58 Bridge #1-Dn
56400 0 0.14 2%5 3640 3465.24 3640 Bridge pl-Up
56400 0 0.2 2552 3665 3465.52 3664.58 Bridge #1-Dn
56290 2048.79 3665
56290 0 0.94 2552 3665 2552 3665
55330 1390.23 4473
55330 0 1.04 2457 3796 2457 3796
53970 1247.2 4601.33
53970 0 1 2541 4231.9 2541 4231.9
53240 1441.36 4654.35
53240 0 0.3 2646 4178.6 2646 4178.6
52370 1842.5 4593.06
52370 0 1 2489.8 3934.8 2489.8 3934.8
________'____'_'__"_______""__'________"'__________'____'____________'______
. .bACHMENT METHOD CHECK
___'_'____'_'_'___"______
RS: 71593
FW EM O1 Floodway er.croachment method is not selected at this �ection.
RS: �1254
FW EM 01 Floodway encroachment method is not selected at this section.
RS: '1098B
Pw EM Ol Floodway encroachment method is not selected at ihis section.
RS: 70673
FW EM O1 Floodway encroachment method is not selected at this section.
RS: 704 93
FW EM O1 Floodway encroachment method is not selected at this section.
RS: 69651
Fw EM O1 Floodway encroachment method is not selected at this section.
RS: 69589
FW EM O1 Floodway encroachment method is not selected at this sec[ion.
RS: 69479
FW EM O1 Floodway encroachment method is no[ selec[ed at this section.
RS: 69314
Fw EM O1 Floodway encroachment method is not selected at this section.
R5: 68798
FW EM O1 Floodway encroachment method is not selected at this section.
F 67578
7 �% O1 Floodway encroachment method is not selected at this section.
RS: 66768
Pw EM O1 Floodway encroachment method is not selected at this section. .
R5: 66055
FW EM O1 Floodway encroaChment method is not SeleCted at [his SeCtion.
RS: 65190
Fw EM 01 Floodway encroachment method is not selected at this section.
RS: 65125
Fw EM 01 Floodway encroachment method is not selected at this section.
RS 65050
h 01 Floodway encroachment method is not selected at this section.
. 71770
Fw EM 01 Floodway encroachment method is not selected at this section.
RS: 71765
Fw EM ol Floodway encroachment method is not selected at this section.
RS: 71735
FW EM 01 Floodway encroachmen[ method is not Selected at this seCtion.
RS: 71701
Fw EM 01 Floodway encroachment method is not selected at ihis section.
RS: 71634
FW EM ol Floodway encroachment method is not selected at this section.
RS: �1606
FW EM 01 Floodway encroachment method is not selec[ed at this section.
R5: 71168
PA EM 01 Floodway encroachment method is not selected at this section.
RS: �0728
FW EM 01 Floodway encroachment me[hod is not selected at this section.
AS: 70235
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 69�41
Fw EM 01 Floodway encroachment method is no[ selected aC this section.
R5: 69293
FW EM 01 Floodway encroachment method is not selected at this sec[ion.
68844
. � 01 Floodway encroachment method is not selected at this section.
RS: 68234
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 67624
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 66814
Fw EM 07 Floodway encroachment method is not selected at this section.
RS: 65735
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 64600
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 64120
Fw EM ol Floodway encroachment method is not selected at this section.
RS: 63640
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 63177.5
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 62715
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 59195
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 58515
T � 01 Floodway encroachment method is not selected at this section.
R. 5�401
Fw EM ol Floodway encroachment method is not selected aC this section.
RS: 56496
FW EM ol Floodway encroachment method is not selected at this section.
RS: 56400
Fw EM 01 Floodway encroachment method is not selecCed at this sec[ion.
RS: 56290
FW EM 01 Floodway encroachment method is not selected at this section.
RS: 55330
� ^M 01 Floodway encroachment method is not selected at this section.
53970
:.. dM 01 Floodway encroachment method is not selected at this section.
RS: 53240
FW EM 01 Ploodway encroachment method is no[ selected at this section.
RS: 52370
FW EM 01 Floodway encroachment me[hod is not selected at this section.
FLOODWAY WIDTH CHECK
"'_'_'___""_"__'__'
RS: 71599
FW FW 03 The Left channel bank station may not be at the proper
location.
RS: 71599
FW FW o3 The righ[ channel bank station may not be at the proper
location.
RS: �1254
FW Fw o3 The Left channel 6ank station may not be at the proper
location.
RS: 71254
FW FW o3 The right channel bank station may not be at the proper
location.
RS: �0988
FW FW o3 The right channel bank sta[ion may not be at the proper
location.
70493
� o3 The LeEt channel bank station may not be at the proper
location.
RS: �0493
FW Fw 03 The right channel bank station may not be at the proper
lowtion.
RS: 69651
FW Fw o3 The rigrit channel bank station may not be at the proper
location.
RS: 69314
Fw Fw o3 The Left channel bank station may not be at the proper
location.
85: 68798
Fw Fw 03 The Left channel bank station may not be at the proper
location.
RS: 68798
FW FW 03 The righ[ channel bank station may not be at the propez
location.
RS: 67578
Fw Fw 03 The Left channel bank station may not be at the proper
location.
RS: 67578
FW Fw 03 The righ[ channel bank station may not be at the proper
location.
RS: 66768
Fw Fw 03 The right channel bank station may not be at the proper
location.
66055
F�. .W 03 The Left channel bank station may not be at the proper
location.
RS: 66055
Fw Fw o3 The righ[ channel bank station may not be at [he proper
location.
RS: 65190
Fw FW 03 The Left channel bank station may not be at the p=oper
location.
RS: 65190
Fw FW 03 The righC channel bank station may not be at the proper
location.
71965
- dw 03 The Left channel bank station may not be at the proper
location.
RS: 71735
FW Fw o3 The LefG channel bank station may not be at the proper
location.
RS: 71701
FW Fw 03 The Left channel bank station may not be at the proper
location.
RS: 66814
Fw Fw 03 The Left channel bank station may not be at the proper
location.
85: 65735
FW Fw 03 The Left charuiel bank station may no[ be at the proper
location.
RS: 64600
Fw Fw 03 The right channel bank station may not be at the proper
location.
AS: 58515
FW FW 03 The right channel bank station may not be at the proper
location.
RS: 5�401
FW PW 03 The right channel bank station may not be at the proper
location.
° 'HARGE CHECK
A
RS: 77735
Fw SC 01 The surcharge value is negative.
RS: 55330
FW SC 02 The surcharge value is greater than the ma�cimum
allowable value of 1
PISCHARGE CHECK
______""_______
RS: 70988
FW FD ol The floodway discharge of 560.6 is not equal to the natural 1� chance
discharge of 403.74
Please justify the use of different discharges for the natural and floodway profiles.
RS� 70493
FW FD 01 The floodway discharge of 560.6 is not equal to the natural 18 chance
discharge of 403.74
Please justify the use of different discharges for the natural and floodway pro£iles.
R5: 69651
FW Fn 01 The floodway discharge of 911.44 is not equal [o the natural 18 chance
discharge of 645.9a
Please justify the use of different discharges for the natural and floodway profiles.
RS: 69589
FW FD 01 The floodway discharge of 911.44 is not equal to the natural 1� chance
discharge of 645.94
Please justify the use of different discharges for the natural and floodway profiles.
RS: 69314
' � 01 The floodway discharge of 911.44 is no[ equal to the natural 18 chance
� discharge of 645.94
Please justify [he use of different discharges for the natural and floodway profiles.
RS: 68798
Fw FD 01 The floodway discharge of 7151.31 is not equal to the natural 18 chance
discharge of 726.59
Please justify the use of different discharges for the natural and floodway pzofiles.
RS: 675�6
FW FD O1 The floodway discharge of 1151.31 is not equal to the natural 1& chance
discharge of 726.59
Please justify the use of different discharges for the natural and floodway profiles.
RS: 66768
' �D 01 The floodway discharge of 1151.31 is not equal to the natural 1& chance
discharge oz 726.59 �
. Please justify the use of different discharges for the natural and floodway profiles.
RS: 66055
FW FD Ol The floodway discharge of 1151.31 is not equal to Che natural 1& chance
discharge of 726.59
Please justify the use of different discharges for the natural and floodway profiles.
RS: 65190
FW FD O1 The floodway discharge of 1151.31 is not equal to the natural 18 chance
discharge of 726.59
Please justify the use of different discharges for the natural and floodway profiles.
AS: 65050
FW FD 01 The floodway discharge of 1151.31 is not equal to the natural 1� chance
discharge of 726.59
Please justify the use of different discharges for the natural and floodway profiles.
RS: 71168
Fw ED O1 The floodway discharge of 16140.4 is not equal to the natural 1% chance
discharge of 16297.26
Please jus�ify the use of different discharges for the natural and floodway profiles.
RS: 70728
FW FD ol The floodway discharge of 16140.4 is not equal to the natural 1% chance
discharge of 16297.26
Please justify the use of different discharges for the natural and floodway profiles.
RS: 70235
FW FD Ol The floodway discharge of 15789.56 is not equal to the natural 18 chance
discharge of 16055.06
Please justiEy the use of different discharges for the natural and floodway profiles.
RF 69741
� 07 The floodway discharge of 15789.56 is not equal to the natural 1& chance
� discharge of 16055.06
. Please justify the use of different discharges for the natural and floodway profiles.
RS: 69293
FW FD O1 The floodway discharge oE 15551.99 is not equal to [he natural 1� chance
discharge of 15974.41
Please justify the use of different discharges for the natural and floodway profiles.
RS: 68844
FW FD O1 The floodway discharge of 15549.69 is not equal to the natural 1& chance
discharge of 15974.41
Please justify the use oE different discharges for the natural and floodway profiles.
R5: 68234
Fw FD O1 The floodway discharge of 15549.69 is not equal to the natural 1� chance
discharge of 15974.41
Please justify the use of different discharges for trie na[ural and floodway profiles.
RS: 67624
FW FD O1 The floodway discharge of 15549.69 is not equal to the natural 1& chance
discharge of 15974.41
Please justify the use of different discharges for the natural and floodway profiles.
RS: 66814
FW FD O1 The floodway discharge of 15549.69 is not equal to the natural 1� chance
discharge of 15994.41
Please justify the use of different discharqes for the natural and floodway profiles.
STARTING WATER-SURFACE ELEVATION CHECK
'"""_'__'_'____________""__""'____
---END---
STVAAIN.rep
' HEC-RAS Version 3.1.3 May 2005
U.S. Army Corp of Engineeis
Hydrologic E�gineering Center
609 Second Street
Davis, California
X X XXXXXX XXXX XXXX XX XXXX
x x x x x x x x x x
x x x x x x x x x
xxxxxxx acxxx x xxx xxxx xxxxxx xxxx
x x x x x x x x x
x x x x x x x x x x
x x xxxxxx xxxx x x x x xxxxx
...........................................«......«.,....,...,..........».....«.
PROJECT DATA
Project Title: Pie & Post Constru<tion Model
Project File : STVRAIN.prj
Run Date and Time: 5/4/2006 '7:57:30 PM
Project in English units
Projec[ Description�
SG. VYain River Pre and Post Construction Model
This model was originally a
copy of an Army Corps of Engineers S[udy done on the St Vcain River.
Modifications have been made to the model to account foz recen[ bridge and topo
changes.
� GOCATION: WEL� COUNTY,
COLORADO
STREAM:
SAINT VRAIN CREEK
DESCRIPTION: HEb RAS INPUT FILE
Yk#i#*I1t1lttYYY+#Rt+4i4#Y1:#kFi4Yi+4kfitA*tk4#i41xf##4#�t'.l4Y#4#ffltRfil+liflRf4i
PLAN DATA
Plan Title: Post Floodway
Plan File : p:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.p01
Geometty Title: Post Project Geometry
Geometry File : p:\3559\3559-ENG\CLOMR\COMHINE� CLOMR MODEL\STV[2AIN.g03
Flow Title : Final Floodway
Flow £ile : p:\3559\3559-ENG\CLOMR\COMHINE� CLOMR MODEL\STVRAIN.f03
Plan Description:
Post-Project 100-year floodway model.
Plan SummaLy Infoimdtion:
Number of: Cross Sec[ions = 43 Multiple Openings = o
CulveLt5 = 0 Inli�e StruCtllYes = 3
Bridges = 1 Lateral Stxuctures = 4
Computational Information
water surface calculation tolerance = 0.01
' Critical depth calculation tolerance = 0.01
Page 1
STVRAIN.rep
Maximum numbez of iterations = 40
� Maximum differenre tolerance = 0.3
Flow tolerance £acCor = 0.001
Computation Options
Critical dep[h computed only where necessary
Conveyance Calculation Method: At breaks in n values only
FTiction Slope Me[hod: AveYage Conveyance
CompuCational Flow Regime� Subcritical Flow
Encroachment Da[a
Equal Conveyance = True
Lef[ Offset = 0
Right Offse[ = 0
River = St. Vrain River Reach = FULL RIVER
RS Profile Method Valuel Value2
65735 base+l targe[ depth 1 2161 3180
6a600 base+l target depth 7 1483 2860
64120 base+l target depth 1 1398 2800
63640 base+l Garge[ depth 1 1313 2750
63177.5 base+l target depth 1 1326.5 30�9
62715 base�l target depth 1 1340 3112
59195 base+l target depth 1 1299 3069
58515 base+l target depih 1 1620 3542
57401 base+l target depth 1 2250 4049
56496 base+l target depth 1 2565 3640
56290 base+l target depth 1 2552 3665
55330 base+l target depGh 1 2457 3796
53970 base+l [arge[ depth 1 2541 4231.9
53240 base+l target depth 7 2646 4178.6
523�0 baseil target depth 1 2469.8 3934.8
Rivez = St. Vrain River Reach = I-25 to Junction
RS Profile Method Valuel Value2
�1770 base+l target depth 1 1000 127�
71765 base+l target depth 1 1976 2271
d 71735 base+l target depth 1 1991 2211
3 71701 hase+l target depth 1 1879 2206
71634 baseal target depth 1 1859 '2200
71608 basetl target depth 1 1858 2201
71168 ba9etl target depth 1 1933.5 2510
70�28 base+l cacget depth 1 2129 2�8�
�0235 base+l target depth 1 2069 2950
69�41 base+l target depth 1 2009 3130
69293 base+l targe[ depth 1 2030.5 3074
68844 base+l target depth 1 2052 3000
68234 base+l target depth 1 1000 215�
67624 baseil target depth 1 2528 3750
66814 base+l target depth 1 2402 3600
Rivez = St. Vrain River Reach = EXISTING LAKES
RS Profile Method Valuel Value2
71599 base+l target depth 1 1775 7858
71254 base+l target depth 1 2045 2112
70988 6ase+1 target depth 1 1910 2172
70493 base+l target depth 1 1820 2ll2
69651 base+l target depth 1 1800 2129
69589 baseil target depth 1 1650 1987
69314 base+l target depth 1 1560 1987
68798 base+l target dep[h 7 1600 2052
67578 6ase+1 target depth 1 2100 2528
66768 base+l target depth 1 79�0 2402
66a55 base+l target depth 1 7450 1824
6R90 base+l [a[get depth 1 1205 2173
65050 base+l target depth 1 1300 2097
River = St. Vrain River Reach = FULL RIVER
RS Profile Method Valuel Value2
65735 PF 3 4 .9
64600 PF 3 4 �9
64120 PF 3 4 �9
63640 PF 3 4 �9
� 63177.5 PF 3 4 .9
Page 2
STVRAIN.rep
62�15 PF 3 4 .9
59195 PF 3 4 .9
58515 PF 3 4 .9
57401 PF 3 q .9
56496 PF 3 4 .9
56290 PF 3 4 .9
55330 PF 3 4 .9
53970 PF 3 4 .9
53240 PF 3 4 .9
52370 PF 3 4 .9
River = 5[. Vrain River Reach = I-25 to �unction
RS Profile Method Valuel Value2
71��0 PF 3 0 0 0
71765 PF 3 0 0 0
71735 PF 3 0 0 0
71701 PF 3 0 0 0
71634 PF 3 0 0 0
71608 PF 3 0 0 0
71168 PF 3 0 0 0
70726 PF 3 0 0 0 �
70235 PF 3 0 0 0
69741 PF 3 0 0 0
69293 PF 3 p 0 0
68844 PF 3 0 0 0
68234 PF 3 0 0 0
67624 PF 3 0 0 0
66814 PF 3 0 0 0
River = St. Vrain River Reach = EXISTING LAICES
AS Profile Method Valuel Value2
71599 PF 3 4 .9
71254 PF 3 4 .9
70988 PF 3 4 .9
70493 PF 3 4 .9
69651 PF 3 4 .9
� 69589 PF 3 4 .9
69314 PF 3 4 .9
68�98 PF 3 4 .9
6�5�8 PF 3 4 .9
66768 PF 3 4 .9
66055 PF 3 4 .9
65190 PF 3 4 .9 .
65050 PF 3 4 .9
River = St. Vrain River Reach = FULL RIVER
RS ProfilE Method Valuel Value2
65735 PF 4 4 .8
64600 PP 4 4 .8
64120 PF 4 4 .8
63640 PP 4 4 .8
6317�.5 PF 4 4 .8
62�15 PF 4 4 .8
59195 PF 4 4 .B
58515 PF 4 4 .8
57401 PF 4 4 .8
56496 PF 4 4 .8
56290 PF 4 4 .8
55330 PF 4 4 .e
53970 PP 4 4 .B
53240 PF 4 4 .8
5�370 PF 4 4 .8
River = St. Vrain River Reach = I-25 to Junction
RS Profile Method Valuel Value2
71770 PF 4 0 0 0
71765 PF 4 0 0 0
71735 PF 4 0 0 0
71']01 PF 4 0 0 0
71634 PF 4 0 0 0
71608 PF 4 0 0 0
71168 PF 4 0 0 0
� 70728 PF 4 0 0 0
' 70235 PF 4 0 0 0
Page 3
STVRAIN.rep
69741 PF 9 0 0 0
' 69293 PF 4 0 0 0
68844 PF 4 0 0 0
68234 PF 4 0 0 0
67624 PF 4 0 0 0
66814 PF 4 0 0 0
River = 5[. VTain RiveL ReaCh = EXISTING LARES
AS Profile Method Valuel Value2
71599 PF 4 4 �B
�1254 PF 4 4 .B
70988 PF 4 4 �8
�0493 PF 4 4 .8
69651 PF 4 4 �8
69589 PF 9 4 �8
69314 PF 4 9 �8
68798 PF 4 4 .8
67578 PF 4 4 �e
66768 PF 4 4 �8
66055 PF 4 4 �8
65190 PF 4 4 �8
65050 PF 4 4 �B
•irat+.+iix:t.i.�x:.:tax+F3w.w:i3ww�ti��w+:r�R:�w�xr:+aM�it+�..�+�r+i++i+:rrr��•
FLOW DATA
Flow Title: Final Floodway
Flow File : p:\3559\3559-ENG\CLOMA\COMBINED CLOMR MODEL\STVRAIN.f03
Flow �ata *{fs*
iR #F#ixFF iA •�iRf4xfiiY�f4ifM41#1}4#ilfit4kF!#Ylxi4i1Fh1YRIk141i4MM�tttlft
* River Reach RS • 10o yeaibase+l target depih *
* St. Vrain River EXISTING LAKES 71599 R 1 1 '
• St. Vrain River I-25 to Junction71�70 • 16700 16700 `
� * St. Vrain RiveY FULL RIVER 65735 � 16700 16700 `
� �»x+.++*+x:ii..a:�i�k:.::rw:ai..++w+xttrrw+i+xx«i++++**�:t+ww:*+.::trr�+t++::
Boundary Condi[ions
.�.....x..:.+.....:::..x.+....+..+:..��.......�++.R+.x.:...+..........«.....++t�.....+«w+.+.......x::.
��Rivei Reach Profile " opstream Downstream `
Mxft4�}flikltf+il#x4l1A4fI}#iF1R4FIk4i4iFi##xh#ilFiiAf£R#lxffixf4#R�R4144xff4xl�+W141i##Y!1!�!#if
'*St;#Vzain River FULL RIVER 100 yea[ * I(nowft WS = 4002.6 •
� St. Vrain River FULL RIVER base+l target depth * Known WS = 4803.6
k4li4i�+t##�Rf41#x�Yfkfftl#iii#1�ih11##flfklfA!#f1t441#R4kili#itli4xf#1�li++lFfkhiYtFlxRlx#41x444#1Rxti4
i1F!liilt!#iiYlilYilR�lifhi#1TliI�lifxx##iflhi�x#FYff#Xxli+xifikkxk#ifR4li#f1i1•
GEOMETRY DATA
Geometsy Title: Post Pzoject Geometry
Geometxy File : p:\3559\3559-ENG\CLOMR\COMBINED CLOMR MODEL\STVRAIN.g03
Reach Connection Table
4!k*<#ifl14#�141#ffi#11ft1Y£tiif4111£44+14#I!!#ifRiif}f#4xftifiRitfslA�li#lfiiifR
* River Reach * ups[ream Boundary + Downstream Eoundary *
+..::�.....+..:.....:.:......:..:..,..«........:.:�.+�.+«....».::::..+:+.«....+:.
* St. Viain Rivei EXISTING LAKES ` * 65735 �
a St. Vrain River I-25 [o Junction * * 65735 ;
* St. Vrain River FULL RZVER • 65735 '
.�xx....x��..x�.+.+.a:.:+.:xe:.�.+..+..,a«.:+...:.:.:........a.:.:+..:..+x:...:++
Jl1NCTION INFORMATION
Name: 65735
Description:
Energy computation Method
Length across Junction Tributary
River Reach River Reach Length Angle
"� St. Vrain River I-25 to Junction to St. Vrain Aiver FULL RIVER 965
�� St. Vrain River EXISTING LAKES to SL Vrain River FULL RIVER 30
Page 4
� STVRAIN.rep
� CROSS SECTION
RIVER: St. Vrai� River
REACA: EXISTING LAKES RS: 71599
INPUT
Description: The water will pond to 4824 in the lakes upstream of the proposed
spillway at cross-section 68595 as this is the proposed weir
elevation.
Station Elevation Data num= 9
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
1f4##x#+fx##t1*Rtt;}1i+it4Y##t;�#nt}ikkllM*+#t�Y#i41RIii#1lf1�*kR*11*1i1kkY4414#
575 4840 985 4925 993 4824 1070 4815 1155 4813
1681 4813 1]60 4824 1810 4831 1858 4832
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
++.xw+..x+«::..x.::.«:.....:.:....x..++.:..+..«. �
575 .035 993 .04 1760 .035
Hank Sta: Left Right Lengths: Left Channel Right CoeEf Con[r. E�cpan.
993 1]60 345 345 345 .1 .3
Hlocked Obstructions num= 1
Sta L Sta R Elev
+.+tixxw.�«x+i�.:..a.,xx
575 1877 4824
CROSS SECTION OUTPUT Pro£ile #S00 year
+.x..x++:x.+.:.«.:.:x.............++.w.....t.++k.x..++....+..�«+...�w....:r.+.:x.+.+.....e....«
* E.G. Elev (fU * 4825.46 * Element * Left OB * Charutel R Right OB *
* Vel Head (ft) 3 0.00 t Wt. n-Val. • 0.035 * 0.040 * 0.035 *
+ W.S. Elev (ft) � 4825.46 * Reach Len. (ft) * 345.00 * 345.00 * 345.00 +
' Crit W.S. (ft) * + Flow Area (sq ft) * 30.63 R 1122.04 � 7.64 *
* E.G. Slope (ft/f[1 *0.000000 � Azea (sq ft) * 10.63 * 1122.04 * 7.64 *
� ' Q Total (cfs) e 1.00 * Flow (cfs) * 0.01 * 0.99 ; 0.00 ;
* Tap Wid[h (ft) 798.10 * Top Width (ft) * 20.65 ]67.00 10.45
* Vel Total (ft/s) * 0.00 * Avg. Vel. (f[/s) • 0.00 � 0.00 � a.-00 �
' Max Chl Dp[h (EU " 1.46 � Hydr. Depth (ft) * 0.51 * 1.46 • 0.�3 *
* Conv. Total (cfs) + 54264.5 � Conv. (cfs) w 289.3 • 53913.5 * 261.�
* Length Wtd. (fU ' 345.00 * W?tt?d Per. (ft) ' 20.72 R 76�.00 * 10.55 *
* Min Ch E1 (ft) * 4824.00 * Shear (lb/sq ft) < 0.00 * 0.00 * 0.00 *
* Alpha + 1.01 * Stream Power (lb/ft s) * 0.00 * 0.00 * a.00
* Frctn Loss (ft) * 0.00 * Cum Volume (acre-ft) * 1.30 • 200.80 i 3.20 *
* C & E Loss (ft) � 0.00 • Cum SA (acres) � 1.66 * 123.35 * S.9g k
+x.+..«+..:..::«:.«.:;+...:.:.++w...+«._.:....:..xr..:....+......:.......:...:::...+.:x.w.:.x..
Warning: The conveyance ratio (upsiream conveyance divided by downstieam conveyance) is less than
0.7 or greater than 1.4. This may indicate [he need for additional cross sections.
CROSS SECTION OUTPUT PY0f11e q6dSer1 tdTget de
•+����*+��+�.:xwr::�w«..�++��.x++�«xwRr��rR�+�.�xir++t.�+�:x��+y��xr+��xx��wxrtw�xxi»axrx�xrxt
• E.G. Elev fft) + 4826.53 • Element * Left OB i Channel t Right OH �
* Vel Head (ft) • 0.09 * Wt. n-Val. * 0.035 *
* W.S. Elev (ft) * 4826.44 * Reach Len. (ft) * 345.00 * 345.00 * 345.00 *
* Czit W.S. (fU * 4626.44 � Plow Azea (sq ft) * + . p qZ .
* E.G. Slope (ft/ft) *0.038944 t Area (sq ft) • + , 0 42
* Q Total (cfs) � 1.00 • Flow (cfs) « : , y oQ w
* Top Width Ift) + 2.46 • Top Width (fU + + R z y6
* Vel Total lft/s) k 2.36 * Avg. Vel. (ft/s) t * R 2.36 *
* Max Chl �pth (f[) * 0.34 F Hydr. Depth (ft) * . . � 17 �
* Conv. Total (cfs) • 5.1 * Conv. (cfs) *
` ' ' 5.1
k Length Wtd. (ft) � 345.00 + Wetted Per. (ft) * k 2.83 *
* Min Ch E1 (ft) * * Shear (lb/sq ft) « * . Y
0.36
* Alpha w 1.00 • S[ream Power (lb/f[ s) * � w 0.86 *
* Frctn Loss (ft) * 0.00 * Cum Volume (acre-ft) � * 146.17 * 5.23
* C 6 E Loss (fU � 0.03 * Cum SA (acres) * * 56.06 * 3.05 *
..+..x...x.wr......«:.x...+.+...+..,+:...�:r...�..+xw:s+++x:..w:......:.+....�...+ex.+.x..:+:+.
Warning: The energy equation could not be balanced within the specified number of itezations. The
program selected the water surface that had the least amount of error between computed and
assumed values.
.� Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less [han
Page 5
STVRAIN.rep
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
. Warning: During [he standard step iterations, when the assumed water surface was set equal to critical
depth, the calculated water surface came back below czitical depth. This indicates that [here
is not a valid subcritical answer. The program defaulted to critical depGh.
Warning: There is no flow in [he channel. Check that the channel stations are correctly coded. To force
flow into Che channel, a levee or inefEective flow may have to be added or the Manning's n of
the overbank could be increased.
CROSS SECTION
RIVER: St. Vrain Rivec
REACH: EXISTING LAKES RS: �1254
INPUT
Description: The water will pond to 4824 in the lakes upstream of the proposed
spillway at cross-section 6&595 as ihis is [he proposed weir
elevation.
Station Elevation Da[a num= 1�
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
Rk#�Ixlfk#41i�slti�ii�liflFxhtiWYfS+illfkt4lt#+f#i114li�1xi#YYilIilxRtliiltiktFY
490 4858 655 4844.5 730 4841 905 4835 975 4836
1000 4834 1151 4832 1311 48�9 1468 4826 1506 4826
1516 4824 1589 4810 1658 4810 1901 4811 1982 4810
2062 4824 2112 4833
Manning's n Values num= 3
Sta n Val Sea n Val Sta n Val
fikflAh*#W++FR4wWM#�ih#ixi#i#i+fthYlFkl�fflkiMxR
490 .035 1516 .04 2062 .035
Bank Sta: Lef[ Right Lengths: Left Channel Right Coeff Conti. Ezpan.
1516 2062 266 266 266 .3 .5
Blocked obstzuctions num= 1
Sta L S[a R Elev
+..xx+..+x.++.++.:..«:..
� 490 3000 4824
CROSS SECTION OOTPUT Profile N100 year
.....++.++.+.::.x...+++..«......w.w,•.x::..»:.....:.+.x:..+xx+.xw.++•.++..xx.++.x:...x...+..+.:
^ E.G. Elev (£t) ' 4825.46 ' Element * Left OH i Channel e Right OB ;
R Vel Head (ft) 0.00 ' Wt. n-Val. * 0.035 0.040 * 0.035 *
+ W.5. Elev (fU � 4825.46 * Reach Len. (ftl * 266.00 * 266.00 266.00 ;
� Crit W.S. Ift) ` * Flow Area (sq ft) * 5.35 * 798.74 * 5.94 *
* E.G. Slope (ft/ft) '0.000000 ' Area (sq fU f 5.35 798.74 * 5.94 *
* Q Total (Cfs) ' 1.00 • Flow (Cfs) 0.00 * 0.99 * 0.01 ;
* Top Width IfU * 561.44 • Top Width IfU + 7.31 * 546.00 * 8.13 *
• Vel Total (ft/s) � o.00 • Avg. Vel. (ft/sl o.00 0.0o R O.Oo *
* Max Chl Dpth (ft) * 1.46 k Aydr. Depth (ft) * 0.73 R 1.46 * 0.73
< Conv. Total (cfs) * 38621.5 * Conv. (cfs) ` 182.0 ' 38236.7 202.� ;
* Length Wtd. (fU * 266.00 * Wetted Per. (ft) * 7.46 * 546.00 y 8.26 Y
` Min Ch E1 (fU * 4824.Oa • Sheaz (lb/sq ft) 0.00 * 0.00 * 0-00 *
* Alpha * 1.00 * Stream Power (lb/ft s) i 0.00 * 0.00 * 0.00 *
* Frctn Loss (ft) • 0.01 ^ Cum Volume Iacre-ft) 1.24 193.19 3.15
C & E Loss (ft) ' 0.00 Cum SA (acres) * 1.55 ` 118.15 ' 1.91 *
ttl4/1f1f�*Y1F!*i+tfil#xii#F14i+*i�i*!h#i1R#lillffM�t##14f#1f*i+k1R4t#1#fi!*�YY4141Tii4FktY4klk
CAOSS SECTION OUTPUT Pmfile #base+l [arget de �
ix�.+�a����+�t*+rrw++ixxx+Wxte++.t+t+:ta�ti++�+t+rx����•arrrx:xrx+a+x��++rRa++w.R�+�x�t�irr:+•
� E.G. Elev (ft) * 4826.38 ' Element * Left OH " Channel * Right OB *
R Vel Head (ft) * 0.00 • WC. n-Val. * � 0.040 ; 0.035 *
* W.S. Elev (ft) * 4826.38 * Reach Len. (ft) * 266.00 * 266.00 ` 266.00 *
* Crit W.S. (ft) � * Flow Area (sq ft) * ; 4a.39 15.68 R
* E.G. Slope (ft/ft) *0.000000 • Area (sq fU � 40.39 � 15.68 i
* Q Total (cfs) 1.00 " Flow (cfs) * 0.77 + 0.23 *
� Top Width (fU ' 3a.2o * Top width (ft) • * 17.00 * 13.20 k
R Vel Total (ft/s) ` 0.02 * Avg. Vel. (ft/s) • * 0.02 0.01 4
• Max Chl Dpth (ftl • 2.38 * Hydr. Depth (fU w * Z.38 " 1.19 `
* Conv. Total (cfs) ' 3187.4 ` Conv. (cfs) * Z448-6 ' 738.9 *
* Length Wtd. (fU ' 266.00 * Wetted Per. (ft) * 19.38 * 13.41 R
� Min Ch E1 (EC) R 4824.00 ' Sheaz Qb/sq fU ' 0.00 e 0.00 *
• Alpha ' 1.03 ' Stream Power (16/ft s) * * 0.00 µ o.00
* Fzctn Loss (ft) * D.OB R Cum Volume (acre-ft) * 146.01 5.16 *
. * C � E Loss Ift) * 0.01 ' Cum SA (acres) " * 55.99 2.99
Page 6
STVRAIN.rep
fYflfiikFxlxx1h1i4ikfIAlR�fl1#+#YZM#Yiiiklflf#lkkiii11111i#n+iTi4tikfw+fAAW#ii##4#4W4#144Ii4#4Y
Warning: The conveyance ratio lupstream mnveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indica[e the need for addi[ional cross sec[ions.
CROSS SECTION
RIVER: St. Vrain River
REACH: EXISTING LAKES RS: 70988
INPUT
Descrip[ion: The wa[er will pond to 4824 in the lakes upstream of the proposed
spillway a[ cioss-section 68595 as this is the proposed weir
elevation.
Station Eleva[ion Data num= 17
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
4t�.tR41hY#itkFFw*1fiia4ihi*4*1R1'.lMMi*kh#*4Y'Fii+#tiM+Ff#{1h4k-.F�.F4#iftflFiYtf+FRlf1YI
490 4858 655 4844.5 730 4841 905 4835 975 483�
1000 4837.2 1151 4830 1199 4824 1311 4810 1468 4820
1506 4830 1589 4B25 1658 4813 1901 4810 1982 4810
2104 4824 2112 4825
Manning's ❑ Values num= 3
S[a n Val Sta n Val Sta n Val
w.xxw++.a+�«a.:.wwxr+rwW�+t+�+�:+xwr�»wi.+.�i.t+
490 .a35 1199 .04 2104 .035
Bank Sta: Left Right Lengths: Lef[ Channel Right Coeff Contr. Expan.
1199 2104 495 495 495 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
490 1670 4827 F
Blocked Obstructions num= 1
Sta L Sta R Elev
.+xw.+a.a.ax+:..+x...+..+
/ 490 3000 4824
�
� CROSS SECTION OUTPUT Profile #100 year
xx�i.x�:t..:.:.«rr,xitta.++t+:�t��..rx.+a:.�.+++*F�t*t��ax:::x.xxx.i�xir++FW���=«wr,�rx.iw�+t++:a
* E.G. Elev Ift) '+ 4825.45 * Element • Le£t OB * Channel * Right OB w
* Vel Head (ftl * 0.01 * Wt. n-Val. * * 0.040 * 0.035 +
* W.5. Elev (ft) • 4825.45 * ReaCh Len. (ft) * 495.00 * 495.00 * 495.00 �
' Crit W.S. (fU ' 4824.30 • Flow Area (sq ft) * * 627.27 * 7.56 �
* E.G. Slope (ft/ft) k0.000180 i Area (sq ft) * 8.36 "' 1157.03 � 7.56 *
• Q Total (cfs) * 403.74 * Flow (cfs) * 4 399.75 * 3.98 *
* Top Width (ft) * 831.65 * Top Wid[h (ft) • 11.56 R 812.08 * 8.00 '
+ Vel Total (ft/s) • 0.64 * Avg. Vel. (ft/s) • * 0.64 * 0.53 *
* Max Chl Dp[h ffU * 1.45 * Aydr. Depth (ft) * * 1.45 � 0.95 *
* Conv. Total (cfs) * 30083.9 * Conv. (cfs) * * 29787.1 * 296.8 *
* Length Wtd. (ft) + 495.00 • Wetted Per. (ft) * * 434.00 * 8.51 *
* Min Ch E1 (ft) � 4824.00 • Shear (lb/sq ft) * + 0.02 * 0.01 *
* Alpha * 1.00 " Stream Power (lb/ft s) * a 0.01 * 0.01 •
* Frctn Loss (fU * * Cum Volume (acre-ft) R 1.20 * 18"1.22 t 3.11 *
* C h E Loss (ft) * • Cum SA (acres) * 1.49 * 114.01 • 1.86 +
•+xkrr.rrr��Fi�x�:.xxrrwwxx��++++�t�arr�r��rs+si+�:�:��:�:+xw+s.F+x+a++t++.x�r:��aa+t�++��+3xrr:+�i
Note: Mul[iple critical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #base.l target de
:�:+ri�ir�irt+x++:*�iyw�+w+����Rx:r.w�s+++*+tw:k�x:rx+�:�xiRt+�a�:xxx;wxa++.����wxr�x+:r+<+:e�iara+.
* E.G. Elev (fU ' 4826.29 * Element * Left OH * Channel * Righ[ OB *
* Vel xead (ft) * 0.02 � Wt. n-Val. * + 0.040 * 0.035 "
* W.S. Elev (f[) ' 4826.26 * Reach Len. (ft) * 495.00 * 495.00 * 495.00 *
' Crit W.S. (ft) * 4824.64 * Flow Area (sq ft) w * 438.87 + 14.10 *
* E.G. Slope (ft/ft) *0.000382 � Area (sq f[) * * 438.87 t 14.10 *
' Q Total Icfs) W 560.60 • Flow (cfs) x + 545.18 * 15.42 *
' Top Width (fU * 202.00 • Top Width (ft) * � 194.00 * 8.00 "
* Vel Total If[/s) • 1.24 + Avg. Vel. (ft/S) * * 1.24 * 1.09 *
* Max Chl Dpth (ft) + 2.26 � Hydr. Depth (ft) * * 2.26 • 1.76 �
� Conv. Total (cfs) • 28666.8 * Conv. (cts) * � 27878.4 * 788.4 �
' * Length Wtd. (ft) * 495.00 � Wetted Per. (f[) * * 196.26 * 9.32 *
Page 7
STVRAIN.rep
� Min Ch E1 (fU * 4824.00 " Shear Qb/sq ft) ' * 0.05 " 0.04 *
+ Alpha * 1.00 * Stream Power Ub/ft s) ; * ���� ' ��04 *
* Frctn Loss (ft) ` ' Cum Volume (acre-fU 144.55 * 5.0"/ x
° C & E Loss (fU � * Cum SA (acres) ' '" 55.35 ' 2.92
•ty:,:�:�+K:i.,t �+tia..:t�x�.i++r:x+xxvr+ix,++r:rxfar.«�r.F:tw,3+a..xtrxxiwx:.iaxrwri++�.��.�rRi:r
warning: The encroachment was ignored because the encroachment was coded either outside of the
cross section or inside of the channel.
Note: Multiple critical -depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
INLINE STRUCTURE
RNER: St. Vrain River
REACH: EXISTING LAKES RS: 706�3
INPUT
Description:
Distance from Upstream XS = 67
➢eck/Roadway Wid[h = 103
Weir Coefficient = 2.63
Weir Embankment Coordinates num = 12
Sta Elev Sta Elev Sta Elev Sta Elev S[a Elev
i��+ axrxirx�.a�..�+R«.+�ix+«ir�.�+3.zt�.+�aaR�ta�arR3+r.�+•
1000Y{**4837;*iy1311**� 4828 1374 4828 1468 4830 1589 4834
1730 4834 1833 4820 1873 4810 1977 4810 2016 4820
2074 4830 2132 4830
Upstream Embankment side slope = 4 horiz. to 1.0 vertical
Downstream Embankment side slope = 4 horiz. to 1.0 vertical
Maximum allowable submer9ence for weir flow = .95
Elevation a[ which weir flow begins =
Weir crest shape = Broad Crested
� IN;e*E*3+A*CiURE*OU*PUT Profile 1{100 year Inl Struc[:
� .r,:i+.k*.x+:xw++.x:t.+.+x�::ix«:t.axii+.*rvR..��+:.
* E.G. Elev (fU ' 4825.45 * Q Gates (Cfs) � *
• W.S. Elev Ift) R 4825.45 * Q Gate GLoup (Cfs) � 4824.64
• Q Total (cfs) * 403.74 '� Gate Open Ht (EC) � 2.00 ;
• Q Weir (cfs) " 403.74 * Gate #Open 4825 *
i Weir Flow Area (sq ft) * 352.00 ` Gate Area (sq fU * 4827.01 t
* Weir Sta Lft (ft) ' 1796.01 * Gate Submerg
* Weir Sta Rgt (ft) ' Z047.62 ` Gate Invert (ftl ' 4824.95 *
* Weir Max Depth (ft) * 1.45 * + w
' Weir Avg Oepth (ft) • 1�40 ` �
* Weir Submerg * 0.99 ' r k
* Min E1 Weir Flow (ft) ` 4824.01 * �
k Wr Top Wdth (f[) ' 251.61 � �
w::...:::.:.:....«+...+.::.w.:..::.....,._.+:::......::.xx=+.w«..x:a.x:�.
Note: Multiple critical depths were found at this location. The critical depth with the lowes[,
valid,
ener9y was used.
INLINE STRUCTURE OUTPUT Pro£ile qbase+l target de Inl Struct:
#% •*iMi##R#{#1:k#fI++R1#i1i4YR111f1f#i4Ml�iifllYiiiF1R#Y144f
* E*G**Elev*(ft) * 4826.29 * 4 Gates (Cfsl ' �
* W.S. Elev (ft) * 4826.26 • Q Gate GYoup (cfs) 0.�0 *
* Q Total (cfs) ` 560.60 ` Gate Open Ht (ft) * 0.00 *
* Q Weir (cEs) ' 560.60 • Gate #Open �
* Weir Flow Area (sq ft) t 310.52 ' Gate Area (sq EC) * 48Z5.44
• Weir Sta Lft (ft) * 7910.00 * Gate Submer9 Y Y
+ Weir Sta Rgt (ft) • 2052.46 * Gate Invert (ft) k ^
* Weir Max Depth (ft) ' 2.29 • . r �
* Weir Av9 Depth (fU ' Z�18 ' � ,
w weir Submerg ` 0.98 * * �
* Min E1 Weir Plow (ft) ' 4024.01 ' R
* Wr Top Wdth (ft) ` 142.46 * '
14#1*h#tihfRfiR4R1h*1!#Y1RY1t*i'.lF4ifii:iF4i:14#4ti#Y4Ii11k+11:fY1i1tYI�/iRhYf{
' Warning: The encroachment was ignored because the encroachment was coded either outside of the
Page e
STVRAIN.rep
cross section or inside of the channel.
� Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION
RIVER: St. Vrain River
REACH� EXISTING LAKES RS: 70493
INP[7T
Description: The water will pond to 4824 in [he lakes ups[ream of the proposed
spillway a[ cross-section 68595 as [his is the proposed weir
elevation.
Station Elevation �ata num= 20
SCa Elev Sta Elev Sta Elev Sta Elev Sta Elev
...:«....+::......+..++....:«a...+.ra++.:.+«+x++.:.x:........:.x....+:.....+i..+:
490 4858 655 4844.5 "]30 4841 905 4836 975 4835.5
1�00 4835.5 1112 4824 1151 4820 1311 4810 1468 4815
1506 482"] 1522 4827 1564 4827 1589 4824 1658 4830 �
1901 4810 1982 4810 2005 4810 2080 4824 2112 4830
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
+...,...::+.....:.x....«....+..+.....:.:w.w.....+
490 .035 1112 .04 2080 .035
Bank Sta: Left Right Lengths: Left Channel Aight CoefE Contr. E�cpan. .
1112 2080 542 542 542 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
490 1650 482'/ F
Hlocked Obstcuc[ions num= 1
Sta L Sta R Elev
�.:x�.ak�+:.......:.x.��
y 490 300� 4924
�
CROSS SECTION OUTPUT Pmfile #100 year
:...aF.:.+«aaxt...+wi.i.�:.n�.�ikx«ti:.:r.�..:s:::x�x+w�+:.:.w,rr:aw,:..:xwr�K+t«:�:xr.WaFt:.tx+r
R E.G. Elev (f[) � 4825.44 " Element * Left OB • Channel * Right OB *
* Vel Head (ft) � 0.01 * Wt. n-Val. * + 0.040 • 0.035 R
* W.5. E1ev (fU • 4825.44 * Reach Len. (Et) * 542.00 ' 542.00 * 542.00 *
• Crit W.S. (ft) � 4824.30 ` Flow Area (sq f[) � '� 617.92 * 5.51 *
* E.G. Slope (ft/ft) *0.000189 * Area (sq ft) � 10.06 * 1269.98 * 5.A •
� Q Total (Cfs) * 403.74 • Flow (Cf5) � ' 401.19 * 2.54 +
* Top Wid[h (fU � 913.68 � Top Width (ft) � 14.00 • 892.03 * 9.66 '
* Vel Total (ft/s) * 0.65 � Avg. Vel. (ft/s) � * 0.65 * 0.46 •
'" Max Chl ➢p[h (ft) • 1.44 ' Hydr. �epth (fU * * 1.44 • 0.72 *
* Conv. Total �cfs) + 29416.0 * Conv. (cfs) * * 29230.6 " 185.4 •
• Length Wtd. (fU " 542.00 +� Wetted Pei. (ft) t • 430.00 � "/.80 t
+ Min Ch E1 (ft� * 4824.00 * Shear Qb/sq ft) * +' O.o2 • 0.01 *
* Alpha * 1.00 • S[ream Power (lb/f[ s) i * 0.01 • 0.00 *
* Frctn Loss (fU * 0.08 * Cum Volume (acre-fU + 1.09 � 173.42 * 3.03 *
t C & E Loss (ft) * 0.00 * Cum SA (aCLes) * 1.35 * 104.33 � 1.77 *
tw+.::wrat::x.�.�x�ax+w��ei�xxwrrwi+rrs��:rRr.i<+<:+�r,..`r++t......s+t:�+:x+w+���x...++t::wxr.�+�r
Warning: Divided flow computed for [his cross-section.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0 J or greater [han 1.4. This may indicate the need for additional cross. sec[ions.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #base+l target de
.+.......x+x.+.+.�x.r...x.++.+.++sk.+.+.....�xx++..s.a..+��.:x....+�....+..R.xw..�.+a..�......+
• E.G. Elev (ft) R 4826.25 * Element * Left OB � Channel + Right OB *
' Vel Head (ft) * 0.01 � Wt. n-Val. * * 0.040 � 0.035 *
* W.S. Elev (f[) � 4826.24 • Reach Len. (ft) • 542.00 * 542.00 * 542.00 •
` Crit W.S. (fU * 4824.53 ' Flow Azea (sq Et) * R 582.33 * 13.38 �
r E.G. Slope (ft/ft) •0.000224 " Area (sq ft) * * 582.33 k 13.38 *
" Q Total (cfs) * 560.60 • Flow (Cfs) * + 551.53 � 9.07 �
* Top Width (fU t 2A.95 * Top Width (ft) * � 260.00 * 11.95 *
* Vel Total (ft/s) � 0.94 *� Avg. Vel. (ft/s) t * 0.95 * 0.68 �
Page 9
STVRAIN.rep
� Max Chl Dpth (Et) * 2.24 ' HydT. Depth (ft) ' ' 2,2g { 1.12 *
� * Conv. Total (cfs) * 37425.9 " Conv. (Cfs) ' * 36820.5 605.4
* Length wtd. (ft) • 542.00 ' Wetted Per. (ft) • • 262.24 ` 12.15 *
+ Min Ch E1 (fU ` 4824.00 � Shear (lb/sq ft) * * 0.03 ' 0.02
* Alpha * 1.00 * Stream Power (lb/ft s) ' * 0.03 • 0.01 '
� Frctn Loss (f[1 * 0.23 * Cum Volume (acre-ft) ' * 138.74 * 4.92 '
* C & E Loss (ftl * 0.01 � Cum SA (acres) " + 52.77 * 2.81 *
.....::.,x+:..+.+a..,:::...x+:.....:.::«..:..+..x.++.+x.x......+x:..+.......w....�..:..a.+...:.
Note: Multiple critical dep[hs were found at this location. The critical depth with Che lowest,
valid,
energy was used.
CROSS SECTION
RIVER: SL Vrain River
REACH: EXISTING LAKES RS: 69651
INPUT
Description: The water will pond to 4824 in the lakes upstream of the proposed
spillway at cross-section 68595 as this is the proposed weir
elevation.
Station Elevation Data num= 78
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
l+Y4*ff#FhRi-.!l1:tk#f#fIFi�F+4*#4##f£1YRf1YiYYff1t141#IR1Yfiiiilifft+hfA4iYa11i4#Y4
490 4833 655 4833 "/30 4833 905 4827 94'7 4824
975 4822 1000 4819 1151 4810 1311 4870 1468 4810
1506 4610 1589 4810 1658 4810 1901 4810 1982 4810 �
2005 9810 2092 4824 2129 4830
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
+...:.axi..=««.a+w+..+«.«+..x.+=.x«a«..x=+«.+w«+
490 .035 947 .04 2092 .035
� Bank Sta: Left Ri9ht Lengths: Left Channel Right Coeff Contr. Expan.
947 2092 495 362 362 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
490 1151 4827 F
. Hlocked Obstructions num= � 1
Sta L Sta R Elev
rxwxk.•*x,::.rx.:«i�+i+i
490 3000 4824
CROSS SECTION OUTPUT Ptofile #100 year
ai:x..s.::+�,r,+s�r��i�i+a�xr.��+�ii:�i�x.�:++r��++xR.t++r.:a�awx:.,
`*E*G**Elev*(ft)*'***'*#R"k4625.37 * Element ' Left OB ; Channel * Right OB k
* Vel Head (ft) • 0.00 * wt. n-Val. * ` 0.040 * 0.035 '
� W.S. Elev (ft) ` 4825.36 R Reach Len. (ft) ` 495.00 362.00 362.00
* Ctit W.5. (fU " 4824.25 ' Flow Area (sq ft) • * 1281.01 + 5.']1 *
* E.G. Slope (ft/fU '0.000121 * Area (sq ft) * 12.97 * 1558.72 + 5.�1 k
+ Q Total (cfs) * 645.94 * Flow (Cfs) ' 643.89 * 2.05 *
* Top Width (ft) • 1172.45 * Top Width (fU ` 19.06 * 1145.00 * 8.39 *
f Vel Total (ft/s) x 0.50 " Avg. Vel. (£t/s) * * 0.50 t 0.36 *
* Max Chl Dpth (ft) * 1.36 ` Nydr. Depth (ft) * * 1.36 ; 0.66 *
* ConV. Total (cfs) ' 58637.7 • Conv. (Cfs) ` ' 58451.6 186.1 R
* Length Wtd. (ft) * 362.00 • M7etted Pei. (ft) * + 941.00 e 8.50 *
* Min Ch E1 (f[) • 4824.0� * Sheaz (lb/sq ft) 0.01 * 0.01 *
• Alpha 1.00 R Stream Power (lb/ft s) * 0.01 0.00 *
• Frctn Loss (ft) * 0.08 * Cnm Volume (acre-ft) R 0.95 * 155.83 * 2.96 {
* C � E Loss (fU R 0.00 Nm SA (acres) • 1.14 91.65 1.67
lhY4Y1ti4i1fFY#flhtYFhf#11?##11#kh�.ti+RIF'F�4i*kfRlkf�.l4411t44YRfiilf<i#1l+i11fY*Yf!**f11�.!*41fIk#4
Warning: The conveyance zatio lupstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #base.l target de
nikiiiiiikFFl/Ff}kR4Yt[It�flfWfl:tt�4#i1+AfRii#4'.!f#M!li4t#i1:�fiR#1R11t1lMMhIA!##i1'.!l11A1t
� •*E,G*~Elev (fU ' 4826.02 * Element * Left OB • Channel * Right OB R
Page 10
STVRAIN.rep
* Vel Head (fU t 0.04 * Wt. n-Val. * � 0.040 * 0.035 t
' • W.S. Elev (ftl • 4825.98 ' Reach Len. (ft) ' 495.00 * 362.00 r 362.00 *
* Crit W.5. (ft) * 4824.68 * Flow Area (sq fC) * � 578.30 • 12.09 *
' E.G. Slope (ft/ftl �0.000709 • Area (sq ft) * + 578.30 • 12.09 *
* Q To[al (cfs) * 911.44 t Flow (cfs) * * 897.97 * 13.46 x
* TOp Width (f[) � 304.21 } Top Width (ft) * * 292.00 * 12.21 *
* Vel Total (ft/s) * 1.54 * Avg. Vel. (ft/s) * � L 55 � 1.11 *
' Max Chl ➢pth (ft) * 1.98 R Hydr. Depth (fU * * 1.98 • 0.99 t
* Conv. Total (cfs) * 34232.9 * Conv. (cfs) * • 73726.7 i 505.7 *
* Length Wtd. (fU ' 362.00 * Wetted Per. (fU * + 293.98 • 12.37 i
' Min Ch E1 (ftl * 4824.00 + Shear (lb/sg ft) * � 0.09 * 0.04 *
* Alpha • 1.00 ' S[ream power (lb/ft s) * * 0.14 * 0.05 *
' Frctn Loss (fU • 0.38 " Cum Volume (acre-ft) * * 131.52 + 4.76 *
* C & E Loss (ft) • 0.00 r Cum SA (acres) * � 49.34 � 2.66 *
1*+A#ii�wFWitfitiRiktttA�iW+*Y#tkf;k+i4lMAYrtRM+ftf+�i3+k44FhI*Yit+kA#h*f!lRxk1#t4#ttxAfi*4iFxAx*
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyancel is less than
0.� or greater than 1.4. This may indicate the need for addi[ional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain Rivez �
REACH: EXISTING LAKES RS: 69589
INPUT
Description: This cross-section shows the proposed spillway between the smaller
upsiream lake and the downstream �big� lake. The spillway will
have a weir elevation of 4824.0.
Station Elevation Data num= 18
S[a Elev Sta Elev Sta Elev Sta Elev Sta Elev
.+..:...+:.:.xx.....x....+:::::x..++:.�.:....:xx..w..«+.+.:...+x:w:.......+...a.
275 4862 355 4858 445 4842 547 4824 553 4823
� 776 4810 864 4810 943 4810 1183 4822 1284 4828
1336 4819 1403 4810 1609 4010 1652 4830 1809 4810
1892 4810 1962 4824 1987 4829
' Manning's n Values num= 3
- Sta n Val Sta n Val Sta n Val
+++..+a+++x......+:........x.xx..»x...w.....xxx
275 .035 54� .095 198� .035
Bank Sta: Left Right Lengihs: Left Channel Right Coeff Contx. Espan.
54� 198� 2�5 2�5 2�5 .3 .5
Ineffective Flow n�m= 1
Sta L Sta R Elev Permanen[
275 1420 4826 F �
Blocked Obstzuctians num= 1
Sta L Sta R Elev
+x�+»���x.rr���rrwr:�:xt
275 1987 4824
CROSS SECTION OUTPUT Pzofile #100 year
.:w�++��rr+a�rx*t+�wxxR�+�*:xirrr���rRs�w++s�x�i+aei+�x..aa+�txxrr��ix�+i��x�+ix++wR+s��xrr+tw.
* E.G. Elev (ft) w 4825.28 * Eleme�t * Left OB � Channel * Right OH *
' Vel Nead (ft) * 0.01 * Wt. n-Val. * * 0.045 * +
+ W.S. Elev (ft) * 4825.27 � Reach Len. (ft) * 275.00 * 275.00 x 275.00 *
' Crit W.S. (ft) * 4824.35 * Flow Area (sq fU * t 6B9.97 * *
* E.G. Slope (ft/ft1 *0.000592 * Area (sq ft) * 4.54 * 1698.50 • *
' Q Total (cfsl t 645.94 � Flow (cfs) * • 645.94 * +
* Top width (ft) * 1366.67 + Top Width (ft) * 7.17 � 1359.50 * �
i Vel Total (ft/s) * 0.94 * Avg. Vel. (ft/s) * * 0.94 * *
' Max Chl Dpth (Et) � 1.27 • Hydr. Depth (ft) > * 1.26 + +
* Conv. Total (cfs) * 2655o.7 * Conv. (cfs) * * 26550 J • *
" Length Wtd. (ft) * 275.00 * Wetted Per. (ft) � + 5qg,q5 . .
* Min Ch El (ft) • 4824.00 * Shear (lb/sq ft) * * 0.05 * *
� Alpha � 1.00 • Stream Power (lb/ft s) w • 0.04 * *
* Frctn Loss (f[) + * Cum Volume (acre-ft) * 0.85 t 142.29 � 2,gg *
C & E Loss (ft) R � Cum SA (acres) * 0.99 * 81.25 * 1.63
� :.xx.:+......:a:...:.:x.a++:�....x,.�...«.x.«a..xx.+..�+xx.:.....+.e+«.x..:�.w+.�.+w..+��.+�...
J`
Page 11
STVRAIN.rep
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Pmfile #base.l target de
+tY+�.ltf��4k##k1:'.lft₹iitifFt�iFlfAfff�1l'�ff11441Rf#fI}tkilk#t1i4Fh1#R�!##k1Rif4ifi4f:4#lt41lii1t+i
t E.G. Elev (ftl * 4825.63 * Element * Left OH � Channel ` Righ[ OB �
+ Vel Head (E[) * 0.05 ' Wt. n-Val. ' * 0.045 * '
� W.S. Elev (ft) * 4825.58 ' Reach Len. (ft) ' 275.00 " 275.00 * 275.00 *
* Crit W.S. (ft) * 4824.63 ' Flow Area (sq ft) * * 500.01 * '
• E.G. Slope (ft/ft) '0.001692 * Area (sq Et) ' + 500.01 * *
* Q Total (cfsl ' 911.a4 R Flow (cfs) * 911.44 *
* Tap Width (fU � 319.91 " Top width (ft) * * 319.91 ^ +
• Vel Total (ft/s) " 1.82 ` Av9. Vel. (ft/s) ' ` 1.82 *
• Max Chl Dpth (ft) " 1.58 i Rydr. �epth (ft) ' ` 1.56 + *
* Conv. Total (cfs) ' 22155.� • Conv. (cfs) + * 22155 J
• Length Wtd. (ft) t 275.00 ' Wetted Per. (ft) * ^ 321.65 �' "
• Min Ch E1 (ft) * 4824.00 ' Shear (lb/sq ft) 0.16
� Alpha x 1.00 * Stream Power Qb/ft s) ' + 0.30 { +
• Frctn Loss (fU ' + Cum Volume (acre-fU 127.04 4-71 ;
C b E Loss (fU ' Cum SA (acres) • * 96.79 " 2.61
w.+x..r..at.+.F.t+�i++..at�+:.:iy+�x++Fr+xi;+i�+++:++.t++�x.+F+�.�t+rr+�i+�+a+�++ir��+t.+:�txwx
Warning: The encroachment was ignored because the encroachment was coded either outside of the
cross section or inside of the channel.
Note: Multiple cri[ical depths weze found at this location. The critical depth with the lowest,
valid,
energy was used.
INLINE STRUCTURE
RIVER: St. Vrain River
REACA: EXISTING LAKES RS: 69479
INPUT
Description: This inline weir models the proposed spillway between the two
� lakes. The weir elevation of this spillway is proposed at 4824.
" Distance from Upstream XS = 143
Deck/Roadway Width = 31
Weir Coefficient = 2.63
weiz Embankment Coordinates num = 13
S[a Elev Sta Elev Sta Elev Sta Elev Sta 61ev
iiY'Ri'R�+litl4i+At4!*It�ii#�t4*Yittt�l�fYFXi#41'.l4ififtfY'.l4iYf4liifRi##f1it1l11k4+
445 4855 557 4847 7�6 4830 943 4830 1183 4830
1284 4835 1336 4835 1403 4830 1609 4827 1652 4824
1909 4824 1845 482� 2009 4826
upstream Embankment side slope = 4 horiz. to 1.0 vertical
Downstream Embankment side slope = 4 hotiz. to 1.0 veztical
Maximum allowable submergence for weir flow = .9s
Elevation at which weir Elow begins =
Weir crest shape = Hzoad Crested
INLINE STRUCTURE OUTPUT Piofile #100 yeai Inl StiuCt:
+x :+w�xki+..R+�*E���r:+.��r�trr�:irr�+rrx�+�+fa�+++�arir+i+r�++•
**E+G*RElev*lft) * 4825.28 * Q Gates (cfs) ''' Y
* W.S. Elev (ft) • 4825.27 ' 4 Gate Group (cfs) * 4824.63
� Q Total (Cfs) f 645.94 ` Gate Open Ht (ft) Y Z�o� ^
� Q Weir (cfs) " 645.94 • Gate qOpen 48Z5 w
� Weir Flow Area (sq ft1 * ZZz.40 t Gate Area (sq ft) " 4826.01 *
* Weir Sta Lft (ft) * 1633.66 ' Gate Submer9 �
* Weir Sta Rgt (ft) • 1824.35 * Gate Invert (fU * 4824.96
* Weir Max Depth (ft) * 1.28 * r �
' Weir Avg Depth (fU t 1.17 *
� Weir Submerg * 0.00 + � �
* Min E1 Weir Flow (fU " 4824.01 ` * *
+ Wz Top Wdth (ft* • i90.69 �
ttkl}tf }f F1:+f i YiFrtYii#11 ♦k11f1tMff*1t�.t4Y'.l1R#i4kiihR}ilflFfli�Yi411k
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
� energy was used.
Page 12
STVF2AIN.rep
INLINE STRUCTURE OUTPUT Profile Nbase+l [arge[ de Inl Struc[:
..x..::.:xx...a.:x�x.........:...:.:..::,..:x+..x.:.«...+...+:.......:x.:
* E.G. E1ev (fU ` 4825.63 * Q Gates (cfs) * t
* w.S. Elev IfU * 4825.58 * Q Gate Group (cfs) * 0.00 *
t Q Total (cfs) t 9ll.44 * Gate Open Ht (ft) � 0.00 t
� Q Weir (cfs) • 911.44 • Gate MOpen * p •
' Weiz Flow Aiea (sq fU • 275.�4 * Gate Area (sq fU • 4825.44 *
* Weir Sta Lft (fU * 1650.00 � Gate Submerg * �
' Weir Sta Rgt (ft) * 1628.61 * Gate Invert (ft) ' +
' Weir Max Depth (ft) ' 1.63 ' i *
* WeiY Avg Depth (ft) * 1.54 ' t •
" Weir Submerg * 0.00 * � �
* Min E1 Weir Flow (fU * 4824.01 * * *
* Wr Top Wdth (ft) • 178.61 * * *
x................x...xxa...:..a.:.:.:,:...t.rr.....:.....::..:..x«......+
Warning: The encroachment was ignored because the encroachment was coded either out�ide of the
cross section or inside of the cha�nel.
Note: Multiple critical depihs were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROS$ $ECTION
RIVER: St. Vrain River
REACN: EXISTING LAICES RS: 69314
INPUT
Description: This cross-section shows the proposed spillway between the smaller
upstream lake and the downstream 'big' lake. The spillway will
have a weir elevation of 4824.0.
Sta[ion Elevation Data num= 18
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
4f�.lf�tfftit44i'k1i14Slt;Y�;�.l�FFM#ii*#fiii'1+#FY#i444l41i#44Ff�Fff:ft�+ktk#1#+k₹!4k!lfle
f 275 4864 355 4854 445 4832.5 512 4819.7 553 4812
f �76 4812 B64 4809 943 4825 1183 4810 1284 4810
1336 4810 1403 4810 1609 4810 1652 4810 1809 4810
1692 4810 1943 4819.7 1987 4828
Manning's n Values num= 3
Sta n Va1 Sta n Val Sta n val
1+'.lY:#4i#kYti#};+lF1:Y:�!'.!'R'.l44h#ii4;A+tttkvltttf�:k14♦
275 .035 512 .045 1943 .035
eank Sta: Left Right Lengths: LeEt Channel Righ[ Coeff Contr. Expan.
512 1943 319 516 516 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
295 1420 4826 F
Hlocked Obstructions num= 1
Sta L Sta R EleV
...+x+.....+,.:.:::x:.xx
275 1987 4819.7
CROSS SECTION OUTPUT Pzofile #100 year
hh#'Y#ffR:tf�1:Fhlf'R*%**#**l�.Y'.liiYYl4+4#i+4Ytfli�.lF1S411:R1)S11ith4TS#1h1Mfi:lk*!k4l114+#fRlltii#1f#Si•
* E.G. Elev (ft) '� 4821.75 * Element • LeEt OB * Channel * Right OB *
* Vel Head (ft) * 0.01 s Wt. n-Val. * • 0.045 • 0.035 "
* W.S. Elev (ft) ' 4821.75 * Reach Len. (ft) ' 319.00 * 516.00 t 576.00 *
' Crit W.S. (ft) * 4820.07 * Flow Area (sq ft) R * 1071.28 +� 11.12 •
* E.G. Slope (ft/ft) "0.000126 * Area (sq ft) * 10.98 * 2747.81 * 17.12 *
• Q Total (cfs) * 645.94 * Flow (cfs) * * 640.62 * 5.32 �
* Top Width (ft) * 1384.50 * Top Width (ft) � 10.72 * 1362.92 "' 30.86 •
* Vel Total (ft/s) * 0.60 * Avg. Vel. (ft/s) * � � 0.60 * 0.48 t
* Max Chl Dpth (fU • 2.05 * Hydr. Depth (ft1 '� * 2.05 * 1.02 t
* Conv. Total (cfs) * 5'1528.4 * Conv. (cfs) * + 57054.2 • 47q.2 +
"' Length Wtd. (ft) * 516.00 • Wetted Per. (ft) * * 523.00 + 11.05 *
' Min Ch E1 (£t) ' 4819.70 � Shear (lb/sq ft) " * 0.02 t 0.01 *
* Alpha ` 1.00 + Stream Power (lb/ft s) ' * 0.01 + 0.00 *
• Frctn Loss (ft) * 0.07 � Cum Volume (acre-ft) * 0.80 * 128.26 * 2.90 *
� * C S E Loss (ft) ' 0.00 � Cum SA (acres) ` 0.94 * 72.65 " 1.60 �
Yf'Ft4*�.l1:1Aff14k�t#Yi:Fk!!4#:!+!i#iitkiiikOfYlf'kYYt*n41;kM!lfF+iR�1iM4h#ifYfll*f1�.lh1kfA4Y#A4�fl4tFY
Page 13
STVRAIN.rep
Warning: Divided flow computed for this cross-section.
CROSS SECTION OUTPUT Profile #base.l target de
kFlftYfkAfhAffF+ittttY+ilxikfxYl/tffYfx�xf4li#FR£ilifYt{#11Yxkt4i41M##fIfSRR1111IMiIiYlhYx1#!xi
� E.G. Elev (f[) * 48a2.76 ' Element * Left OB • Channel * Right OB •
* Vel Head (ft) * 0.01 * Wt. n-Val. • • 0.045 * �.035 *
* W.S. Elev (fU ' 4822.75 ' Reach Len. (fU ' 319.00 ' 516.00 a 516.00
* Crit W.S. (fU * 4820.26 " Flow Area (sq ft) * ' 1166.77 • 24.60 *
* E.G. Slope (ft/fU •0.000124 ' Area (sq ft) • * 1166.77 * 24.60 ;
* Q Total (cfs) • 911.44 * Flow (cfs) ` ` 896.23 ' 15.21
t Top Width (ft) � 399.15 ` Top Widih (fU ' * 383.00 * 16.15 �
* Vel Total (ft/s) * 0.77 • Avg. Vel. (ft/s) * � 0.77 0.62 {
* Max Chl Dpth (ft) * 3.05 * Hydr. Depth (fU ' " 3.05 � 1.52 }
* Conv. Total (cfs) * 81903.7 � Conv. (cfs) ' * 80537.1 1366.6
* Leng[h Wtd. (fU * 516.00 * Wetted Per. (fU * * 386.05 * 16.43 *
• Min Ch E1 (ft) * 4819.70 * Shear (lb/sq ft) * * 0.02 * 0.01 ;
• Alpha * 1.00 * Stream Power (lb/ft s) ` k 0.02 R 0.01 x
* Frctn Loss (ft) * 0.08 * Nm Volume (acre-ft) ' 121.78 4.63
C & E Loss (Et) * 0.00 * Cum SA (acres) " * 44.58 * 2.56 •
t41xIRk4kiikA#i*ii#4xrtA#4i4#ltt4kilfYiiif11tt11YIf1#ilRfifYf4!!f##1##tiii[Il4i#it4*iYIRlWW1Rhli
Note: Multiple critical depihs were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: EXISTING LAKES R5: 68798
INPllT
Description: The water will pond to 4819.7 in the lakes upstream of the
proposed spillway at czoss-section 64715 as this is the proposed
weir elevation. �
� Station Elevation Data num= 18
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
� ksiS#i:fRk4A+1A#si1'RtR41i:I�ii+YtlFhif�F##YR4fiYh�.lik+1}I�#iY4ffi1111#Yi1f11fi'FiR1+1#
459 4860 568 4847.9 620 4845.5 728 4828 796 4825
868 4819.9 975 4819 1073 4828 1201 4836 1313 4828
1418 4820 1455 4810 1573 4809 1773 4809 1932 4810
1972 4819.7 1973 4820 2052 4826
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
.....,.+++....Y.........:+..:,�.+...:.+:+xx.+.«::.
459 .035 868 .04 1972 .035
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Espan.
868 1972 6B3 1220 1112 .3 .5
Ineffective elow num= 1
Sta L Sta R Elev Peimanent
459 1455 4823 F
Blocked Obstructions n�m= 1
Sta L Sta R Elev
F#YiRt+i141fei1flhkRill#+
459 2200 4819.7
CROSS SECTION OUTPUT Profile #100 year
4'.lf+#!f#*+i'.l144#Rh�.l1i!li4f*IF1*k#411:1Yi11tY111�4i�rfRi#i'.lFF4iiff4ik##hY1lk##l1i1'filfi!#'f1iA
**E*G4 Elev (ft) * 4821.68 * Element * Left OB � Channel � Right OB *
* Vel Head (ft) ' 0.01 " Wt. n-Val. • 0.040 0.035 *
• W.S. Elev (f[) * 4821.68 " Reach Len. (ft) • 683.00 k 1220.00 * 1112.00 e
* Crit W.5. (ft) * 4820.09 • Plow Area (sq ft) * • 1021.63 * 20.32
� E.G. Slope (ft/ft) *0.000144 � Area (sq ft) * 26.52 ` 1360.79 � 2�.72 *
* q Total (cfs) * 726.59 � Flow (cfs) * 717.10 * 9.49 *
* Top Width (fU ' 762.06 • Top Width (ft) 26.85 " 712.14 23.07
: » 0.70 * Av Vel. (ft/s) * " 0.70 * 0.47 k
Vel Total (ft/s) 9' * 1.90 * 0.88 R
R Max Chl Opth (ft1 * 1.98 * Hydr. Depth (ft) *
R Conv. Total (cfs) * 60553.3 * Conv. (cfs) R �* 59762.8 * 790.5 `
� Length Wtd. (ft) * 1216.07 * wetted Per. (ft) + 517.00 w 23.18 ;
+ • Min Ch E1 (fU � 4819.70 ' Sheaz (lb/9q £t) • 0.02 0.01 *
. * Alpha { 1.01 * Stream Power Qb/ft s) * ' 0.01 + 0.00 .
Page 14
STVRAIN.rep
� ` Frctn Loss (tt) * 0.29 * Cum Volume (acre-ft) * 0.67 * 103.92 ; 2.72 *
' � C & E Loss (f[) * 0.00 * Cum SA (acres) * O.BO " 60.36 * 1.40 "
� .x.:+..:..xx..:x:.+....x�x...+.�+.+.+..w++++:.+.:.+.:.:..r.,:....a.,�.x..::.a.+«.x.x...........
Warning: Divided flow wmputed for zhis czoss-section.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater Chan 1.4. This may indicate the need for addi[ional cross sections. �
Note: Multiple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile pbase-1 target de
.xx.xw...:.:..r........r....x.:+..a.++..a..xx....+«..:..»+..a.x:w..:.+.+«+x.,.:w...++.a...r..:.
R E.G. Elev (ft) * 4822.68 • Elemen[ � Left 0B + Channel * Right OH �
* Vel Head (ft) • 0.02 * Wt. n-Val. • * 0.040 * 0.035 '
� w.S. Elev (ft) * 4822.66 � aeach Len. (fU ' 683.00 • 1220.00 * 1112.00 •
* Crit W.S. (ft) * 4820.38 t Flow Area (sq ft) * * 1101.29 * 49.41 *
* E.G. Slope (ft/ft) *0.00017'J i Area (sq ft) + • 1101.29 � 49.41 '
" Q Total (cfs) • ll51.31 • Flow (cfs) + * 1116.93 * 34.38 *
* TOp Width (ft) * 408.03 * Top Width (ft) � * 3"l2.00 ' 36.03 *
* Vel Total (ft/S) i 1.00 * Avg. Vel. (ft/s) • • 1.01 * 0.70 *
* Max Chl Dpth (fU * 2.96 • Hydr. Depth (ft) � w 2.96 � 1.3'l *
* Conv. Total (cfs) = 86485.9 * Conv. (c£s) • * 83903.3 • 2582.6 •
" Length Wtd. (ft) * 1215.44 ' Wetted Per. (fU ' * 3'i4.96 " 36.18 *
* Min Ch E1 (ft) � 4819.�0 * Shear (lb/sq ft) • * 0.03 * 0.02 *
* Alpha * 1.01 * Stream Power (lb/£t s) F • p.03 * 0.01 �
* Frctn Loss (ft) + 0.29 * Cum Volume (acte-ft) " • 108.35 * 4.19 *
* C & E Loss (ft) • 0.00 * Cum SA (acresl ' * 40.10 * 2.25 *
r+t.++r:::R+a+tix.wr:�++t��.::.+;riia+a�krxr+i���+a��+x.�si+�:::��„t+aiia�xi�it+�:+tx��xe+�.t���
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water sur£ace was used.
CROSS SECTION
.� RIVER: SL Vrain River
REACH: EXISTING LARES RS: 67578
INPl1T
Description: The water will pond [0 4819.7 in Lhe lakes upstream of the
proposed spillway at cross-section 64715 as this is the proposed
weir elevation.
Station Elevation Data num= 20
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
:......::.::x.x...:.....x.:.::.:+....r++...,.xxxx...+.a..:.+.....:.x.....+.:x....
1150 4860.5 1200 4855 1288 4844 1302 4844 1395 4845
1442 4845 1464 4844.2 1593 4834.5 1798 4830 1863 4830
1950 4826.5 1996 4826 2026 4824 2043 4879.� 2059 4816
2196 4806 2380 4817 2398 4819 2413 4819.7 2528 4825.8
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
.+.:«x.....w..:x+x..++...xx.x....+«::.xx.....a.+
1150 .035 2043 .04 2413 .035
Bank Sta, Left Right Lengths: Left Channel Right Coeff Contr. Eupan.
2043 2413 684 810 B15 .1 .3
Blocked Obstzuctions num= 1
Sta L Sta R Elev
:...a..«..+..++++..xx...
1150 2600 4819.7
CROSS SECTZON OUTPOT Profile p100 year
� ii*f}�##Y4#l1RA'.!f#tf;�FkRAiii#iFA4if11k1fY#iiye;l�l41fiS4ifA1i#4�i41'fifhA#Af4'1#4}�y#1#i+hitvlflli+M�1
* E.G. Elev (ft) t 4821.39 • Element * Left OB s Channel * Right OH *
* Vel Head (ft) • 0.02 * Wt. n-Val. + 0.035 • 0.040 * 0.035 *
* W.S. Elev (£ti * 4821.37 R Reach Len. (ft) * 684.00 ' 810.00 * 815.00 *
* Crit W.S. (ft) • + Flow Area (sq ft) * 5.51 * 617.69 * 26.27 R
• E.G. Slope (ft/ft) *0.000471 * Area (sq ft) R 5.51 * 617.69 t 26.27 *
" Q Total (cfsi * 726.59 ` Flow (cfs) • 4.41 � 700.74 � 21.4q R
' Top width (ft) ` 408.08 t Top Width (ft) * 6.60 * 370.00 * 31.4"l *
w Vel Total (ft/s) • 1.12 • Avg. Vel. (ft/s) t 0.80 * 1.13 * O.B2 "
Page 15
STVRAIN.rep
• Max Chl Dp[h Ift) t 1.67 * Hydr. Depth (ftl = 0.fl3 � 1.6� � 0.03 '
, * Conv. To[al (cfs) � 33482.3 * Conv. (cfs) * 203.1 * 32291.3 • 987.9 •
' " Length Wtd. (fU � 809.45 * wetted Per. (fU ' 6.81 " 370.00 ` 31.52 *
* Min Ch E1 (ft) � 4819.�o ' Shear (lb/sq ft) " 0.02 • 0.05 ' 0.02 "
+ Alpha � 1.01 � Stream Power (lb/ft s) * 0.02 * 0.06 • 0.02 "
' Frctn Loss (Et) • 0.19 * Cum Volume (acre-fU * �.41 � 76.22 ' 2.12 '
• C & E Loss (f[) ' 0.00 * CUm SA (aCYes) * 0.59 * 45.21 * 0.70 '
....,:,«....,:....a...,.....+..«....».+::.....:.....,.:.:.:.::..::.:,...x.x..«.+..++......rr+..
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or grea[er than 1.4. This may indicate [he need for addi[ional cross sec[ions.
CAOSS SECTION OOTPUT Profile #base+l CaYget de �
•44FAhfkf#1tfTtflAffliYfll�ftwff�x��T£RAA11AF11tff41i1##YMfii4ttY41#;lxAtfiiliR�Ii111f4i41fifh♦
+ E.G. Elev (fU ` 4822.38 * Element t Left OB • Channel + Righe oB *
+ Vel Read (ft) ' 0.03 • Wt. n-Val. ' • 0.040 ' 0.035 `
* W.5. Elev (Et) • 4822.35 ' ReaCh Len. (ft) ' 684.00 * 810.00 * 815.00 •
* Cri[ W.S. (ft) � • Flow Azea (sq fU * ' 830.64 • 66.39 �
' E.G. Slope (fC/fU '0.000342 ' Area (sq ft) ' * 830.64 ' 66.39 *
* Q Total (cfs) � 1151.31 * Flow (cfs) * R 1088.39 i 62.92 •
� Top Width IEU � 363.03 � Top Width (ft) * • 313.00 • 50.03 �
* Vel Total (f[/s) � 1.28 * Avg. Vel. ff[/s) � r 1.31 * 0.95 �
* Max Chl Dpth (fU � 2.65 " Hydr. Depih (fU � • 2.65 * 1.33 �
' Conv. To[al (cfs) • 62214.8 * Conv. (Cfs) ' * SBB14.5 • 3400.3 *
* Leng[h Wtd. (ft) � 810.19 ' Wet[ed Per. (fU ` * 315.65 • 50.10 *
� Min Ch E1 (fU * 4819 JO * Sheaz (lb/sq ft) • • 0.06 * 0.03 �
* Alpha • 1.02 + S[ream Power (lb/ft s) • * 0.0� * 0.03 *
* Frctn Loss (ft) � 0.20 • Cum volume lacze-ft) r * 81.29 � 2.71 *
` C � E Loss (ft) � 0.00 " Cum SA (acres) ' * 30.51 * 1.15 W
.a.:...,.::.:....a«a.......::,..:...:..:a..x..+.+...x..,..:::..:...».a.:.:.:..x+....+..:..:+x.+
CROSS SECTION
RIVER: St. Vrain River
REACH: EXISTING LAKES RS: 66768
� INPUT
� Description: The water will pond to 9819.7 in ihe lakes ups[ream of [he
proposed spillway at cross-section 64775 as this is the proposed
weir eleva[ion.
Station Elevation Da[a num= 27
Sta Elev Sta Elev Sta Elev S[a Elev Sta Elev
.:r+:v..axr�iF�Ritx.iai.�F.F.t++..�tix�t�i+w+ri:t+�i���rr��itaWt�i.i.�*y�ta�i+�a
1310 4839 1325 4839 1350 4839 1390 4838 1402 483�.5
1433 4835 1445 4831.5 1466 4827.9 1539 4820 1540 4819.�
15�1 4806 1604 4806 1643 4806 1672 4806 1�48 4806
1801 4806 1932 4806 1944 4806 1961 4806 1978 4806
2002 9806 2106 9B06 2203 4806 2320 4810 2362 9819
2371 4819.� 2902 4822.3
Manninq's n Values num= 3
Sta n Val Sta n Val Sta n Val
a�++.a::..w.rx...»...............�....«...a.«��+
1310 .035 1540 .04 2371 .035
Bank Sta: Left Right Lengths: Lef[ Channel Right Coeff Contr. Expan.
1540 23�1 713 713 713 .1 .3
Hlocked Obsiructions num= 1
Sta L Sta R Elev
w�;�3arxwr�r�wr�r�t�ri�•
1310 2402 4819.7
CROSS SECTION OUTPUT Pzofile q100 year
f14F+i1f111#f�f1f111lff1Rf1111}tftitifkFYiiM#Yf1f#l1t11ti#iif41lif#1#fii44+#R#+f1##tR4#e1f1f4tf
� E.G. Elev (ft) � 4821.19 * Element • Left OB R Channel * Right OB *
t Vel Head ift) * 0.01 ' Wt. n-Val. � 0.035 � 0.040 • 0.035 *
* W.S. Elev (fU ' 4821.19 " Reach Len. (ft) * 713.00 * 713.00 � 713.00 *
� Crit W.S. (ft) * ` Flow Area (sq fU * 7.82 • 1233.52 * 73.14 •
* E.G. Slope (f[/Et) "0.000145 • Area (sq fU * 7.82 � 1233.52 * 73.14 �
� Q Total (cfsl � 726.59 t Flow (cfs) ' 2.99 ` 718.10 * 5.49 *
• Top width (fU ' 860.65 * Top Width (fU ' 11.95 * 831.00 • 1�.7a +
* Vel Total (ft/s) * O.SB � Avg. Vel. (ft/s) " 0.38 • 0.58 ; 0.42 '
* Max Chl Dpth (ft) * 1.48 • Hydr. Depth IfU ' 0.65 t 1.98 � 0.74 w
Page 16
STVRAIN.rep
'� Conv. Total (cfsl * 60331.7 • Conv. (cfs) ' 248.7 • 596�6.9 * 956.1 * '
" Length Wtd. (ftl t "713.00 * Wetted Per. (fU ' 12.05 * 831.00 � 1�.76 "
* Min Ch E1 (fU � 4819.70 • Shear (lb/sq fU * 0.01 � o.ol * 0.01 �
* Alpha + 1.00 t Stream Power (16/ft sl ` 0.00 * 0.01 ' 0.00 '
• Frc[n Loss IfU * 0.14 * Cum Volume (acre-fU • 0.31 � 59.a1 * 1.76 `
* C & E Loss (f[1 ` 0.00 * Cum SA lacres) * 0.39 t 34.04 • 0.29 *
.:+....,..:.«..........................w...a.a....«,....a......:..:.........,......:..r.:.:.:.:
CROSS SECTION OUTPUT Profile ikbaseil target de
4'.lt4ti�1h4i#iYi���att�afi#ah4*iii#1fYh#�FkYfiik}ffttt�tt�ftfR�.lR1f!'.l1TA44A4R1kfAkAvlAfRfY441++I*i♦
* E.G. Elev (ft) ' 4822.18 ' Element ' Left OB * Cha(lnel ' Right OB *
• Vel Head (ft) � 0.01 * Wt. n-Val. * * 0.040 " 0.035 "
' W.S. Elev (Ft) * 4822.1� " Reach Len. (fU " 713.00 * 713.00 ' 713.00 *
* Crit W.S. (fU ' * Flow Area (sq ft) + � 1235.62 ^ 36.27 i
* E.G. Slope (ft/ft1 •0.000182 ' Area (sq f[) * ' 1235.62 � 36.27 *
" Q To[al (Cfs) 1151.31 " Flow (cfs) R ' 1127.47 * 23.85 *
" Top Width (ft) ' 530.41 ' Top Width (ft) ' * SO1.00 * 29.41 F
* Vel Total (ft/s) * 0.91 * Avg. Vel. (ft/s) * * 0.91 " 0.66 *
" Max Chl Dpth (fU * 2.47 * Hydr. Depth (ft) « • 2,q7 , 1 23 '
* Conv. Total (cfs) * 85281.3 + Conv. �cfs) � + 83514.8 " 1"166.5 *
* Lengih Wtd. (fU * 713.00 * Wetted Per. (fU ' * 503.47 * 29.51 *
• Min Ch E1 (ft) * 4819.'10 • Shear (lb/sq fU " • 0.03 * 0.01 �
* Alpha • 1.01 + Stream Power (lb/ft s) * ' 0.03 • 0.01 *
* Fzctn Loss (ft) * 0.20 * Cum Volume (acre-ft) ' * 62.08 * 1.75 �
* C 6 E Loss (ft) � 0.00 * Cum SA (aCres) * * 22.94 * 0.41 *
I'.!!�.l1IR1#£t4}liti#t�tfft�tYfl��;iFk*1A14AA}IlAkAflf�'R1ff11�lf+R�.li1!'.!1l11AR'.!1#�.11itfMll�t'RRf:Wi##i
Warning: The conveyance ra[io (upstzeam conveyance divided by downstream comieyance) is less than ,
o.� or greater [han i.4. This may indica[e the need for additional cross sections.
CxOSS SECTION
RIVER: S[. Vrain River
REACH: EXISTING LAKES RS: 66055
INPUT
� Description:
Station Eleva[ion Data num= 10
Sta Elev Sta Elev Sta Elev S[a Elev Sta E1ev
.::x.x.:.�....wx.,..:...::.:.+«+a.:a...::..:..:,..:,:..::...+:...a:.«.:.....:.,:
855 4B50 3000 4837 1093 4819.� 1162 480'] 1582 48�5
1656 4820 1')OB 4810 1763 4810 1812 4819.7 1824 4822.2
Manning's n Values num= 3
Sta n Val Sta n Val S[a n Val
..x.x..wx..+a....::,.:::..,..::.......:.:......«
855 .035 1093 .04 1812 .035
Hank Sta: Left RighC Lengths: Lef[ Channel Right Coeff Contr. E�cpan-
1093 1812 1075 865 216 .1 .3
Blocked Obstructions �um= 1
Sta L Sta R Elev
x...e:..«..:.....:..:::.
1000 1824 4819.�
CROSS SECTION OOTPUT Profile �100 yeaz
•w.xrwx»wk.+Ft�.�xx+r:�:wa�rw»>ri�+a�+����++a�ti++i�:ii++:i+t+�Rx+���.rrxx���tFx�a.t++i��t+r�r�
• E.G. Elev (ft) ' 4821.05 i Element • Left OB ' Channel + Right OB *
� Ve1 Head (fU * 0.07 � Wt. n-Val. * 0.035 * 0.040 � 0.035 t
* W.S. Elev (ft) * 4821.04 ' Reach Len. (fU * 10"/5.00 t 865.00 * 216.00 *
* Crit W.S. (ft) � * Flow Area (sq f[) * 4.84 * 964.30 * 4.32 *
� E.G. Slope (f[/fU �0.000274 � Area (sq ft) � 4.84 * 964.30 * 4.32 *
* Q Total (cfs) i 726.59 * Flow (c£s) " 2.58 * 721.71 * 2.30 •
* Top Width (ft) * 732.65 • Top Width (ft) * 7.21 • 719.00 t 6.44 *
* Vel Total (ft/s) • 0."l5 � Avg. Vel. (tt/s) * 0.53 * 0."l5 • 0.53 *
* Max Chl Dpth (ft) * 1.34 * xydz. Depth (fU " 0.67 * 1.34 • 0.67 �
� Conv. Total (c£s) • 43856.5 • Conv. (c£s) * 155 J + 93562.2 * 138.6 *
• Lengih Wtd. (ft) � 863.86 * wetted Per. (ft) ' 7.34 * '/19.06 * 6.Se +
' Min Ch E1 (ft) * 4819 JO ' Shear (lb/sq fU ' 0.01 • 0.02 * 0.�1 *
* Alpha * 1.00 * Stream Power (lh/ft sI ' 0.01 • 0.02 • 0.01 �
• Frctn Loss Ift) * 0.25 ' Cum Volume (acie-fU * 0.21 * 41.02 * 1.61 *
• C & E Loss (fU • 0.00 • Cum SA (acresl • 0.23 * 21.36 ` 0.04 *
, i#+Yit4fy�4tfifi�t��k�Xti���Mi4ttfittRF#RI11f#RA#ifltt#ti14'k:YS4inlAlf#4Y1#4k4tk�Y++ltk+hF+il+1♦
Page 17
STVRAIN.rep �
{ RROS3+9E**{ON*OUTPU,*kP�YoE�lee*#ba9e'ek`a�rget de
� F .w+..+r..xw:F++iFi�avx.+R��+tat+�+i«+t�x:..t+.Rw+:i+r�:+
R E.G. Elev (fU ' 4821.98 • Element • Left OB " Channel ' Righ[ OB '
� vel Head (ft) r 0.03 • Wt. n-Val. * R 0.040 * 0.035 *
• W.S. Elev (f[) " 4821.95 * Reach Len. (fU * 1075.00 R 865.00 " 216.00 '
• Crit W.S. (fU ' ` Flow Area fsq ft) ` * 812.98 ' 12.12 R
t E.G. Slope (ft/EU '0.000488 ' Area (sq ftl * * 812.98 * 12.12 *
* Q Total (cfs) * 1151.31 • Flow (cfs) * R 1139.20 12.11
* Top Width (ft) ' 372.79 " Top Width (fU ' * 362.00 ; 10.79 *
� Vel Total (ft/s) * 1.40 " Avg. Vel. (fL/s) ' t 1.40 1.00 k
' Max Chl Dpth (fU ' 2.25 ` Hydr. Depth (fU • ' 2.25 � 1.12
• Conv. Total (cfs) • 52121.9 * Conv. (cfs) ' ' A573.7 548.2
* Leng[h Wtd. (ft) ' 859.86 t Wetted Per. (ft) ' * 364.31 { 11.02 *
* Min Ch E1 (ft) ' 4819.70 ' Shear (lb/sq ft) • 0.07 0.03
* Alpha ' 1.00 '� Stream Power (lb/ft s) • * 0.10 �* 0.03 •
* Frctn Loss (ft) ' 0.18 "' Cum Volume lacre-ft) " 45.32 7.36
a C & E Loss (ft) * 0.01 � Cum SA (acres) * * 15.88 * 0.08 *
,:......:::r...xx:.....x.:.a.«:..+.::...x....a+.+:....«::.«.x.+x+a....��+..+..:.«.+.++.....::...
Warning: The conveyanre ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or 9teater than 1.4. This may indicate the need for additional cross sections.
CROSS SECTION
ftIVER: St. Vrain River
REACH: EXISTING I.AKES RS: 65190 .
INPUT
�escription: This is the proposed spillway out of the the 'big' lake, which
will convey flow back into the St. Vrain River.
Station Elevation �a[a num= 13
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
x....::.....:.+rr.::::......+..x.+x::..w...:..x:....::.:.x..+++r.:a.ot.�+«+++.•«.
846 4840 948 4828 1061 4822 1098 4819.7 1107 4816
1200 4817 1326 4810 1408 4810 1564 4810 1765 4810
A 2097 4810 2159 4019.7 2173 4822
T
Manning's n Values num= 3
Sta � n Val Sta n Val Sta n Val
�:....+..+...+:...+...,..�....:_....«++...:.:....
846 .035 10�8 .045 2159 .035
Bank Sta: Lef[ Right Lengths: Left Channel Right Coeff Contx. E�an.
1078 2159 140 140 140 .3 .5
Blocked Obstructions num= 1
� Sta L Sta R Elev
.x��z�r:x�<iwr.+�arrtt+t+
846 2173 4819."/
CROSS SECTION OUTPUT Pmfile #100 year
4+k1�#iiliiYY'Rlii#11l�.lYiRtt4i'.lFitllfttRfttvl�.lt�iiFf+Ylttil#fiI44f4�.l�.l411fIft4411#4ff#1f##
+*EYG**Elev (ft) ' 4820.80 • Element * Left OH * Channel ; Righ[ OB e
< vel Head (ft) ' 0.01 ' Wt. n-Val. * �.035 * 0.045 x 0.035 µ
* W.S. Elev (Pt) * 4820.80 * Reach Len. (ft) ' 140.00 * 140.00 140.00
* CLit W.S. Ift) ' 4819.94 • Flow AZea (sq ft) ' 4.43 * 1183.40 ; 3.65 *
• E.G. Slope (ft/fU *0.000303 ' Area (sq fU * 4.43 • 1183.40 ; 3.65 *
* Q Total (Cfs) * 726.59 * Flow (Cfs) Y 2.18 * �22.62 * 1.79 *
" Top Width (ft) * 1095.76 • Top Width (ft7 8.09 * 1081.00 6.66 +
+ vel Total (ft/s) � 0.61 * Avg. vel. (ft/s) ' 0.49 * 0.61 • 0.49 *
+ Max Chl Dp[h (ft) • 1.09 ' Hydr. Depth (ft) ; 0.55 * 1.09 k 0.55 x
* Conv. Total (cfs) * 41734.4 * Conv. (cfs) 125.1 * 41506.7 102 J
* Length Wtd. (ft) * 140.00 * wetted Per. (ft) * 8.1'7 " 1081.00 * 6.75 •
* Min Ch E1 (ft) * 4879.70 * Shear (lb/sq ft) 0.01 y 0.02 * 0.01 Y
t Alpha * 1.00 R Stream Power (lb/ft s) �* 0.01 * 0.01 * 0.01 *
+ Fzctn Loss (f[) * ' Cum Volnme (acre-ft) 0.09 * 19.69 + 1.59
; C & E Loss (fU ' ` Cum SA (acres7 ' 0.05 3.48 0.01 *
k###1lYi**1R4ii#Ylilhkill£#k1AF4*+ARYWT:'#4AF1#+}4{iffifflRf�fYi11:1R*ifhM:#Yhfitl:k#41fYi1Ai##YekFtt
CROSS SECTION OUTPUT Profile tlbase+l Carget de �
*fiA'A4#*i+Y44:!#F1iMi1A!#ilt:l41#lY:f1!liil:Rfifltl:�'k11f�F#F�i#i�.lii##1l1:WR11'kki111k#YR1Ml111I4k+4#1>
� * E.G. Elev (ft) ' 4821.79 * Elemen[ * Left OB i Channel ` Right 06 �!
� * Vel Head (ft) * 0.01 � Wt. ❑-Val. * * 0.045 * 0.035
Page 18
STVRAZN.rep
� W.S. Elev (fU * 4821.79 � Reach Len. (fU ' 190.00 * 140.00 * 140.00 *
� * Cri[ W.S. (fU * 4820.06 * Flow Area (sq f[) * � 1989.52 * 13.24 `
� * E.G. Slope IEt/ft) *0.000114 ' Area (sq ft) • • 1989.52 x 13.24 *
" Q Total (cfs) k 1151.31 * Flow (cfs) * + 1145.19 * 6.13 '
t Top Width (fU * 966.70 t Top Width (ft) * * 954.00 * 12.70 '
* Vel Total (ft/s) * 0.57 � Avg_ Vel. (ft/s) + � 0.58 * 0.46 �
* Max Chl Dpth (fU * 2.09 * Hydr. �ep[h (fU • * 2.09 "' 1.04 *
* Conv. To[al (cfs) "107650.3 ' Conv. (cfs) * *107077.5 * 572.8 '
• Length Wtd. (fU + 140.00 * Wetted Per. (ft) * � 956.09 * 12.87 -
k Min Ch E1 (fU * 4819.70 x Shear (lb/sq ftl * * 0.01 * 0.01 �
* Alpha • 1.00 * Stream Power (lb/Pt s) � • 0.01 * 0.00 *
� Frctn Loss (ft) * * Cum Volume (acre-fU * '� 17.49 ' 1.30 •
* C S E Loss (fU * * Cum SA (acres) • * 2.81 * 0.02 '
•xx�++�+�Ftt.i�„t��iii,�xx�rxxwxnx��«x�s+�it�r�tt��:++t�x*�Ki�t+�s:��xrx.��ra�+�r�+�<+�++.::a�.,r
Warning: The encroachment was ignored because Lhe encroachment was coded either outside of Che
cross section or inside of the channel.
INLINE STkUCTURE
RIVER: St. Vrain River
REACH: EXISTING LAKES AS: 65125
INPUT
Description:
Distance from Upstream XS = 65
Deck/Roadway Width = 25
Weir Coefficien[ = 2.63
Weir Embankment Coordinates num = 11
Sta Elev Sta EleV � Sta Elev Sta Elev Sta SleV
•tf+i1:#iY#1kT*'.!f'.lR1Yf4#i1>iFl�.t�.ln1:T�.lf11!#i##i4#+iifi#i*A!'.!Ilf1lXitYYYS!##<F�.l1Af�.l1
846 4840 948 4828 1061 4822 1107 4819.7 1200 4819.7
1326 4819.7 1408 4822.2 1564 4822.2 1'165 4822.2 2097 4822.2
2173 4822.2
� � Upstream Embankment side slope = 6 horiz. to 1.o vectical
Downstream Embankment side slope 5 horiz. to 1.o vertical
' Maximum allowable submezgence for weir Plow = .95
Elevation at which weir flow begins =
Weir crest shape = Hroad Crested
INLINE STRIICTl7RE OOTP[1T Profile #100 yeaY IR1 Struct:
.r:xr»r.�yr+��::.:xxx�r�<+*tr++:+t:.a.:�:xxx+..wit+xxr�rs=:x.:r+.Mx+iwa�.
* E.G. Elev (fU * 4820.80 ' Q Gates (cfs) * *
* W.S. Elev (ft) 3 4820.80 * p Gate Group (cfs) • 4820.06 *
* Q Total (cfs) * 726.59 R Gate Open Ht (ft) � 1.00 *
* Q Weir (cfs) • 726.59 * Gate qOpen * *
* Weir Flow Area (sq £U * 273.01 ' Gate Area (sq ft) * �
* Weir Sta L$ (ft) ' 1084.99 * Gate Submerg + R
' Weir Sta Rgt (ft) • 1362.10 • Gate Invert (ft) * «
* Weir Max Depth (ft) * 1.10 " • +
* Weir Avg Depth (ft) * 0.99 * * *
* Weir Submerg * 0.76 * * *
* Min E1 Weir Flow (ft) • 4819.71 ' � *
* Wr Top Wdth (fU * 277.11 + * *
!f�lYi+if#il;i#1R##Yi+#;*kT1:fi1+*###*i#4*#tR*�.l1:h1:11Y'R#1Y1ii4l1fi141`111lk1Y*
INLINE STRUCTURE OUTPUT Pr0£ile #ba9e+1 taYget de Inl StruCt:
%f*R1#�.lh###1+i1t>#'.l1:f4/i'Y#Rf*1f�.!#*l1fi1#i4Y1kY#44h4#k<*1+111ki1##+tf*ilikl4
• E.G. Elev (Et) * 4621.79 * Q Gates (cfs) * •
• W.S. Elev (ft) • 4821.79 • Q Gate Group (cfs) * 0.00 *
* Q Total (cfs) + 1151.31 �" Gate Open Ht (fU * 0.00 *
* Q Weir (cfs) * 1151.31 * Gate t{Open * 0 *
* Weir Flow Area (sq ft) * 324.68 * Gate Area (sg Et) * 4825.44 +
* weir Sta Lft (f[) * 1205.00 * Gate Submerg * * �
* Weir Sta Rgt (ft) * 1394.58 ` Gate InVeY[ (ft) � *
* WeiZ Max Depth (ft) * 2.09 * • k
* Weir Avq Depih (ft) * 1.71 * * t
• Weir Submerg R 0.55 * � *
� Min E1 Weir Flow (ft) • 4819.71 * * *
&. * Wr Top Wdth (fU " 189.58 • . • +
1�l1:ff1f1�.11AifiFliikY#i4##AY1#i4#Rik4kM+M1t##i#i44f#'Fhik4#44k#R+*iFF4hFkk#
Page 19
STVRAIN.rep
: warning: The encroachment was ignored because the encroachment was coded either outside of the
czoss section or inside of the channel.
CROSS SECTION
RIVER: St. Vrain River
REACH: EXISTING LAKES RS: 65050
INPUT
Description:
Station Elevation �atd num= 9
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
+:a,.+......+.+...::..a...x.:+...:++...::.....::,.+...:x,+....:......:.:x:+:.+.,
828 4833 1030 4819 1080 4813 1200 4812 1326 4812
1408 4812 1564 4812 1�65 4812 2097 4812
Manning's n Values num= 3
Sta n Val S[a n Val Sta n Val
.........+.........+.:.....+..+.:.:+...:....:+..
828 .035 1010 .045 2097 .035
eank Sta: Left Right Lengths: Left Channel Right Coe£f Contr. Expan.
1010 209� 0 0 0 .3 .5
CROSS SECTION OUTPUT Profile #100 year
a:.t�+vxr:.�+tt+.+++::i+�w«+e�r�+t*�a�+i+�w+i++rrw;tww:+**«�xxx+�++.Rwxt+r+���++ti+�:s+wx:��++�
* E.G. Elev (ft) * 4820.56 * Element " Left OB * Channel ` Right OB *
* Vel Head (ft) * 0.00 * Wt. n-Val. * 0.035 * 0.045 ' *
* W.S. Elev (ft) ' 4820.56 * Aeach Len. (fU ' 30.00 • 30.00 * 30.00
` Crit W.S. (ft) • * Flow AYea (sq fU ' 15.82 * 8964.78 * ;
* E.G. Slope Ift/EU `0.000000 ` Aiea (sq ft) * 15.82 * 8964.78 * ;
' Q To[al (cfs) ' �26.59 • Flow (cfs) 0.34 * �26.24 *
* Top Width (ft) * 1107.28 ` Top Width (fU � 20.28 k 1087.00 * *
* Vel Total Ift/s) * 0.08 * Avg. Vel. Ift/s1 0.02 �.OB
• Max Chl Dpth (ft1 • 8.56 * Nydr. Depth (ft) * 0.78 * 8.25 ` M ` *
� • Conv. Total (cfs) *1202434.0 " Conv. (cfs) ;` 568.0 �1201866.0+ ;
* Length Wtd. (fC) 30.00 ' Wetted Per. (fU Y 20.34 i 1095.82 * *
* Min Ch E1 Ift) * 4812.00 * Sheaz (lb/sq ft) 0.00 0.00
i Alpha * 1.00 * Siream Power (Sb/ft s) { 0.00 R 0.00 � *
* Frctn Loss (fU ' 0.00 " Cum Volume (acre-ft) 0.06 3.39 L 59 *
C & E Loss (fU * 0.11 * Cum SA (acres) • ' ` �
#rt+ItiixlA?tiAalffti�*ARFiil44itxx+i*RRlIIRRii#Ra[tkiAxt44Y11fiYAxtt4klii##Yi11!##1ifMY1#xff*#4
Warning: The cross-section end points had to be extended vertically for the computed water surface.
CROSS SECTION OUTPllT Profile #baseal target de
1!*+*Ifli44#1IIY#F11kFR1ilk#!1/#ixlfYlx/kiihfM£tMhttkFtlffFXY14#i4N*#44Y11l4Rl1*I*#I<i#+if11
•*E.G. Elev (ftl * 4820.99 " Element ' Left OH • Channel * Right OH *
+ Vel Head (fU * 0.00 ' Wt. n-Val. * ` 0.045 y *
* W.S. Elev lft) • 4820.99 • Reach Len. (ft) * 30.00 * 30.00 3�.00 *
* Crit W.S. ffU • * Flow Area (sq ft) * * 7163.27 * R
* E.G. Slope (f[/fU *D.000001 * Area (sq ft) � * �163.27 ; *
* Q Total (cfs) * 1151.31 " Plow (cfs) ' 1151.31 ` *
* Top Width (ft) * 797.00 ' Top Width (ft) • * 797.00 *
* Vel Total (ft/S) ' 0.16 * Avg. Vel. (ft/5) • * 0.16 *
* Max Chl Dpth (ft) R 8.99 * Hydr. Depth (ft) *x * 8.99 * 4
* Conv. Total (cfs) '1007408.0 * Conv. (cfs) *1047408.0 * R
* Lengih wtd. (fU • 30.00 ' Wetted Per. (ft) + * 814.98 * t
* Min Ch E1 (ftI * 4812.00 * Shear (lb/sq f[) 0.00 + Y
• Alpha * 1.00 * Stream Power (lb/ft s) * * 0.00 * *
* Prc[n Loss (fU * 0.01 * Cum Volume (acre-f[) * ` 2.78 1.27
* C � E Loss (f[) * 0.11 * Cum SA (acres) * � �
#flkk#+f#iti��tt4kYR+#4lxkkiflk�lf+i+h4Wff44iMlki#h/4f11�1WW1R�#flkk#1ifA14IMfiY#It#iYR*4ii1f1*
CROSS SECTION
RIVER: St. Vxain River
REACH: I-25 to Sunction RS: 71770
INPIIT
: Description: This cross-section is the downstream edge of the I-25 frontage
Page 20
STVRAIN.rep
road. The blocked obstruction on the left overhank is because flow
� cannot physically get to this area during the 10o-year storm. The
flow will not overtop I-25 and the bank between I-25 and the
frontage road is at an elevation of 4636. During the 500-year
event, shallow ponding will be present at this low poin[ in the
road, however, i[ will be ineffective flow because the flow will
not overtop I-25.
Station Elevation Da[a num- 26
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
rw��.tRxwwF:..�*a:�+++�++�wiF+«w:i+i+++aRwxe+*t��xxr�t++a�:rsaw����++�ix�+��«ax�
-400 9852 -200 483� 0 4832 19B 4835 325 4839
493 4845 549 4844.6 843 4842.8 950 4842 1000 4832
1013 482� 1026 4826 1057 4824 1065 4822 1145 4822
1183 4826 1248 4827 1261 4828 1277 4831 1305 4834.65
1909 4831.55 2561 4832.65 3217 4833.15 3684 4841.05 3705 4841.D5
3901 4843.05
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val �
..«+..:.....:.«.........++........:«.:...:......
-400 .07 1000 .04 1277 .07 .
Hank Sta: Left Right Lengths: Lef[ Channel Right Cceff Conti. Expan.
1000 1277 5 5 5 .3 .5
Ineffective Plow num= 2
Sta L Sta R Elev Permanent
-400 843 4843 F
1305 3901 4843 F �
Blocked Obstructions num= 1
Sta L Sta R Elev
.a+...x.»..:.....x+x.+.k
-400 493 4836
CROSS SECTION OUTPUT Profile p100 year
.��+tt.�x<:::x�+twxrrx+��xiit�+�i�x�i+a+t��ri.e+t�:.t++i::x�a+�+�xrrw+x��xk�F�xw��+:�z�wxr«:r+
' E.G. Elev (fU � 9833.96 * Element * Left OH * Channel * Right OB *
a Vel Head (ft) • 0.84 * Wt. n-Val. * 0.070 * 0.040 ' 0.070
� * W.5. Elev (ft) * qe33.11 � Reach Len. (ft) > 5.00 • 5.00 • 5.00 *
�� * Crit W.S. (ft) � 4829.63 * Flow Area (sq Et) + 3.10 ' 2261.24 * ll.12 *
• E.G. Slope (ft/ft) t0.002420 � Area (sq ft) * 3.10 * 2261.24 * 1056.10 *
` Q Total (cfs) *16700.00 t Flow (cfs) • 2.16 *16679.40 • 18.44 *
" Top Width (ft1 • 1862.61 * Top Width (fU • 5.56 * 277.00 + 1580.04 *
* Vel Total (ft/s) * 7.32 � Avg. Vel. (ft/s) t 0.70 * 7.38 w 1.08 *
• Max Chl Dpth (ft) * 11.11 + Hydr. Depth (fU * �.56 • 8.16 * 1.06 *
* Conv. Total (cfs) •339501.9 • Conv. (cfs) • 43.9 *3390B3.1 * 374.9 *
' Length Wtd. (ft) * 5.00 * Wetted Per. (ft) * 5.67 � 278.81 * 16.35 •
* Min Ch E1 (Et) � 4822.00 * Shear (lb/sq ft) * 0.06 ' 1.23 * 0.16 *
* Alpha • 1.01 • Stream Power (Lb/ft s) * D.06 + 9.04 * 0.17 •
• erctn Loss (ft) • 0.01 " Cum Volume (acre-ft) • 28 J9 * 178.60 • 644.25 *
* C & E Los5 (ft) * 0.06 * Cum SA (aCYe5) * 6.53 • 17.34 + 181.39 �
4Sii*hYt;}Rh4i144#�tkxitt4;trt4it4kRA1Mf#Ylfkti4M*11R441t##Yi4#f#+;1i+#44�#i!!4ili+tRxhlWix4xtix
warning: Divided flow computed for this cross-section. �
Note: Multiple critical depths were found a[ this location. The critical depth with [he lowest,
valid,
water surface was used.
CR0SS SECTION OUTPOT Profile qbase.l tarqet de
..:�.r.:+..xx.+..x....+..+..t::xx»++.+.+..+x+x:.��+.xxx+:.�:...�rxx:..:.:...��xw.t+:•x....+k�++
* E.G. Elev (ft) • 4834.03 * Element * Left OB * Channel • Right OH *
t Vel Head (ft) * 0.83 � Wt. n-Val. * * 0.040 * *
* W.S. Elev (ft) * 4833.20 * Reach Len. (ft) * 5.00 * 5.00 * 5.00 •
� Crit W.S. (ft) * 4829.68 � Flow Area (sq ft) * * 2285.05 • �
* E.G. Slope (ft/fU *0.002381 * Area (sq ft) * � 2285.05 k +
* Q Total (cfs) *16700.00 * Flow (cfs) � *16700.00 • *
* Top Width (ft) � 277.00 * Top Width (ft) + . y�7,pp , ,
+ Vel Total (ft/s) + 7.31 + Avg. Vel. (f[/s1 * + 7,31 + ,
* Max Chl Dpth (ft) * 11.20 * Hydr. Depth (fU * + 8.25 * *
• Conv. Total (cfs) *342278.4 * Conv. (cfs) x •342278.4 * +
* Length Wtd. (ft) * 5.0o t Wetted Per. (fU * * ygz,yl + .
* Min Ch E1 (ft) � 4822.00 * SheaY (lb/Sq fL) * * 1.20 * *
` Alpha � 1.00 t Stream Power (lb/ft s) * * 8 J9 * .
* FrCtn Loss (fU ` 0.01 * Cum Volume (acre-ft) • 29.62 + 185.0� • 374.18
.� * C & E Loss (ft) � 0.09 � Cum SA (acres) R 6.93 • 17.36 * 77.99 i
Page 21
STVF2AIN.sep
!##Ft#FiftYiiklkli'R'.!flkkF4#YlFI£i#kYifYR#l�4ihiiif#i1i#1:hli#i£I'.l4i1:f444itM�t4�##f1}ii£#1f'.lti+li
NOCe: Mul[iple cri[ical depihs were found at this location. The critical dep[h with [he lowest,
valid,
water surface was used.
CROSS SEC"LION
RIVER: S[. Vrain River
REACH: I-25 to Junction RS: 71965
INPUT
Description: The blocked obstruction on the left overbank is because flow
cannot physically get to this area during the 100-year storm. The
flow will not overtop L25 and the bank between I-25 and [he
frontage road is at an elevation of 4836. �uring the 5o0-year
event, shallow ponding will be present at this low point in the
road, however, it will be ineffective flow because the flow wi11
no[ overtop I-25.
Station Elevation Data num= 36
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.:.«+.».+._+.+....«....++...+.:._.:...,.__+«..:++++:._+..�._+..:..+::.+++.:.+:.:.
740 4840 800 4834 1000 4832.2 1449 4845 1596 4844.1
1700 4843.5 1647 4842.6 1877 4842.4 19�5 4842.2 1976 4825
2072 4824.25 2115 4822.7 2159 4822.� 2102 4828.05 2326 4829.55
2471 4828.55 2648 4828.65 2782 4828.05 2800 4828.05 2934 4827.75
2954 4824.85 2974 4824.85 2992 4828.25 3125 4830.15 3199 4B30.15
3356 4830.25 3489 4830.55 3617 4829.B5 3777 4830.85 3786 4826.55
3802 4826.55 382'7 4831.15 3965 4831.95 4116 4833.05 4312 4834.55
4312.1 4834.55
Manning's n Values num= 3
S[a n Val Sta n Val Sta n Val
.............::.....+..+.:...«.....:............
740 .07 1976 .04 2182 .07
J Hank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
. 19�6 2182 30 30 30 .3 .5
Ineffective Flow num= Z
Sta L Sta R Elev Permanent
740 1905 4843 F
2245 4312.1 4843 f'
elocked obstructions num= 1 .
Sta L Sta R Elev
x�:++�x:.tt+r::::rx:«:i+
740 1449 4836
CROSS SECTION OllTPUT Profile #100 year
:�t+i:.:�*xRx++���+�xxr+rr:t�+rx:trx+i+�r�:wrr.x++xr:+++::iw.xa+s+.�«*R�i*+3*+tt+Rx
�*E;G**Elev*(fU * 4833.88 ' Element • Left OB * Channel * Right OB *
* Vel Nead (fU ' 1.05 • Wt. n-Val. • 0.070 0.040 0.070 *
+ W.S. Elev (ft) �" 4832.83 * Reach Len. (ft) * 30.00 * 30.00 ± 30.00 ;
* Crit W.S. (ft) ` 4030.04 " Flow Area (sq ft) * 126.46 * 1806.63 294.11
* E.G. Slope (ft/ft) *0.002925 * Axea (sq ft) ' 126.46 * 1006.63 Y 6382.58 k
* Q Total (cfs) *16700.00 • Flow (cfs) 353.76 *15403.13 943.12 *
* Top Width (ft) "' 2141.80 * Top Width (fU ' 32.31 R 206.00 * 1903.49 *
* Vel Total (ft/s1 * 7.50 * Avg. Vel. (ft/s) * 2.80 8.53 * 3.21 ;
+ Max Chl Dpth (ft) * 10.13 • Hydr. �epth (fU i 3.91 " 8.77 4.67 R
+ Conv. Total (cfs) •308798.6 * Conv. (cfsJ * 6541.3 *284818.2 k 17439.1 *
* Length Wtd. (fU ` 30.00 " Wetted Per. (ftl * 33.25 k 206.64 + 63.00 *
* Min Ch E1 (ft) * 4822.70 • Shear (lb/sq ft) 0.69 1.60 0.85
* Alpha 1.21 ` Stream Power (lb/ft s) ' 1.94 ' 13.61 * 2.73 �
* Frctn Loss (ft) * 0.09 • Cum Volume (acre-fU ' 28.78 * 178.36 * 643.82 *
* C & E Loss (ft) • 0.01 ` Cnm SA (acres) • 6.53 17.31 181.19
14*R:tFi4lY#iR�tiikfikY:RFiFAhihifi#ii*#irifttkkl4ftihi4#*ffti#1:YiY�.lI4#I+##1Fk11if#filk4f!*4Fifi:i
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Piofile kbase.l [arget de
:..+...+..«..a+:xx:.:....,:.x...........x.•...:w�w+::...ier.Rr...x«.x....+«aa++.+.a.�..++:�:e:+
�� � E.G. Elev (fU * 4833.93 i Element = Left OB * Channel ' Right OB
Page 22
STVRAIN.rep
. '� Vel Head (ft) � 1.12 " Wt. n-Val. * * 0.040 + 0.070 * �
. ' W.S. Elev (fU * 4832.80 * ReaCh Len. (£t) * 30.00 " 30.00 3 30.00 x
* Crit W.S. (£U * 4830.07 * Flow Area (sq fU * * 1801.40 * 292.51 *
' E.G. Slope Ift/fU *0.003231 * Area (sq f[) "' * 1801.40 • 409.21 *
� Q Total (cfs) *76700.00 w Flow (cfs) * •15717.73 * 982.27 *
* Top Width (ft) ' 295.00 " Top Width (ft) � F 206.00 ' 89.00 �
• Vel Total (ft/s) * 7.98 " Avg. Vel. (ft/s) * t 8.73 ' 3.36 *
' Max Chl Dpth (ft) * 10.10 ' Hydr. DepCh (fU " " 8.74 * 4.64 *
* Conv. Total (cfs) *293809.1 w Conv. (cfs) • *276527.8 * 17281.3 '
* Length Wtd. (ft1 * 30.00 * Wetted Per. (ft) * • 214.45 ` 63.00 R
* Min Ch E1 (ft) ' 4822.70 * Shear Ilb/sq ft) ` * 1.69 * 0.94 *
" Alpha * 1.14 ' SLream Power (lb/ft s) * * 14.�8 • 3.14 *
* Frctn Loss Ift) * 0.11 * Cum Volume (acre-ft) * 29.62 • 184.84 "' 374.15 *
* C & E Loss (f[) * 0.06 � Cum SA (acres) * 6.93 • 17.33 * 77.99 *
«..+xxx.«:+.«....+..+.x.�......xwxx.:x.x.+:++.w++:..s:.�,�k..�+�..r�xR...x+.......a.+..x..�w.xx..+ �
Note: Multiple critical depths were found at this location. The cri[ical dep[h with the lowest,
valid,
w.ytcr �urfac+ was u�sd.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction RS: 71735
INPUT
Description: This Cross-section is the upstream edge of the rip-rap rundown.
Ineffective £low exists in the left and right overbank of this
cross-section because of the elevation of I-25.
Station Elevation Data num= 31
S[a Elev Sta Elev Sta Elev Sta Elev Sta Elev
.x.x+�.+«..:t.+++.r.:.x.x+.:«a�..:+«.......+.+..»+a.t..:+t...+�:.+«:ka.x++...<a.
1866 4834 1991 4826.56 2009 4826.48 2022 4822.34 2057 4822."18
2089 4823.35 2134 4823.91 2770 4825.12 2211 4826.52 2326 4828.42
24"!1 4B28.42 2648 4828.52 2782 4827.92 2800 4827.92 2934 4827.62
� 2954 4824.'12 2974 4824.72 2992 4828.12 3125 4830.02 3149 4830.02
3356 4830.12 3489 4830.42 361"/ 4829."]2 3777 4830.72 3786 4826.42
� 3802 4826.42 3827 4831.02 3965 4831.82 4116 4832.92 9372 4834.42
� 4312.1 4834.42
Manning�s n values num= 3
Sta n Val Sta n Val Sta n Val
r.a++t+++a+<,:+::...::x.ir.tx�+w..i+tay+tt�a+�+�r
1866 .0'1 1991 .04 2211 .D7
Bank S[a: Left Right Lengths: Le£t Channel Right Coeff Contr. Ezpan.
1991 2211 67 67 67 .3 .5
Ineffective Flow num= 2
S[a L Sta R Elev Peimanent
1866 1866 4843 F
2211 4312.1 4843 F
Blocked ObsCructions num= 7
Sta L Sta R Elev
+r�++a�+����x.r:xxr�a++sa
1866 187'/ 4824
CROSS SECTION OUTPUT Profile #100 year
kY:1t#4t1tt111lkY>#ilii1if4411:fYifi;fil#fii4tf#144tF4!*h1e#*f1f�FIf141YfY##4+4#�4S!#fAk*Ri#k4+ifhR
� E.G. Elev (ft) � 4833.78 • Element * Left OH * Channel * Right OB *
* Vel Head (ft) * 1.08 * Wt. ❑-Val. • 0.070 * 0.040 • *
* W.S. Elev (ft) • 4832.70 ' Reach Len. (ft) • 67.00 * 67.00 • 67.00 *
• Crit W.S. (ft) � 4829.92 + Flow Area (sq fU * 317.07 � 1867.91 " *
* E.G. Slope (f[/ft) *0.003050 * Area (sq ft� < 317.07 * 1867.91 * 6342.82 *
* Q Total (cfs) *16700.00 * Flow (cfs) * 784.55 *15915.45 � *
* Top Width (ft) • 2198.53 * Top Width (ft) * 103.22 * 220.00 ' 1875.31 *
* Vel Total (ft/s) � 7.64 * Avg. Vel. (ft/s) * 2.47 � 8.52 '� *
* Max Chl Dpth (ft) * 10.36 R Hydr. Depth (ft) � 3.07 � 8.49 + *
+ Conv. Total (cfs) *302384.2 * Conv. (cfs) � 14205.7 *288178.6 * t
* Length Wtd. (Et) * 67.00 * Wetted Per. (ft) * 103.40 ' 220.70 * t
� Min Ch E1 (fU ' 4822.34 * SheaY (lb/sq ft) • 0.58 * 1.61 * *
* Alpha * 1.19 * Stream Power (lb/ft 9) ' 1.44 * 13.73 * *
* Frctn Loss (fU * 0.37 r Cum Volume (acre-ft) * 28.63 * 177.10 * 639.44 *
� * C & E Loss (ft) * 0.62 * Cum SA (acres) * 6.48 * 17.17 � 179.89 *
Page 23
STVRAIN.rep
FYRiiY1Yi#RiF#YR#RIkiMYi1Ili#iiYtffYRfAtt+#1A#ii1#if!#tkki�##f4hlfixRklYiffii#xKf1Y�ilffl#1ti#♦
warning: The velocity head has changed by more than o.5 ft (0.15 m) . This may indicate the need for
addi[ional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or 9rea[er than 1.4. This may indicate the need for addi[ional cross sections.
Note: Multiple critical depths were Eound a[ this location. The critical depth with ihe lowes[,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #base.l target de
1Yi;M#k#1tf #x+xtt#kRtftirtMl4tilRklilxi4+aff4+4fYf4Y1�4!#1AR�M+Y1if11#It4M�4#!k
**E*Gi*Elev*(ft) * 4833.76 * Element • Lef[ OH � Channel * Right OH *
� Vel Head (ft) * 1.32 * Wt. n-Val. ` * ��040 x
t W.S. Elev (ft) * 4832.44 • Reach Len. (fU * 67.00 * 67.00 67.00 *
* Cri[ W.S. (ft) * 4829.88 ` Flow Area (sq ft) * * 1809.04 * +
• E.G. Slope (ft/ft) *0.004005 * Area (sq ft) ` * 1809.04 * ;
+ Q Total (cfs) *16700.00 * Plow (cfs) µ *16700.00 + h
* Top width (ft) * 220.00 ` Top width (ft) ; Z20.00 * *
* Vel Total (ft/s) * 9.23 ' Avg. vel. Ift/s) ` i 9.23 Y
* Max Chl Dpth (ft) * 10.10 � Hydr. �epth (fU e 8.2z � *
* Conv. Total (c£s) '263883.8 * Conv. (cfs) R263683.0 * *
� Length Wtd. (ft) ' 67.00 ' Wetted Pei. (ft) * � Z3z.49 � ;
� Min Ch E1 (ft) * 4822.34 * Shear (lb/sq fU * 1.95 • *
* Alpha � 1.00 • Stream Power (lb/ft s) * y 17.96 ;
• Frctn Loss (ft) * 0.43 R Cum Volume (acre-ft) 29.62 * 183.59 * 374.01 *
C 5 £ Loss (ft) * 0.53 R Cum .SA (acres) * 6.93 17.18 77.95
##N�*t�Y�M*f1Yx}*14ii*#iixt�ilix�kiltflR##ik##kftil�!###4if4#4+#ifll#iR##i1lhYifh�#i�4YfiliYlfi
Warning: The velocity head has changed by more than o.5 ft (0.15 m) . This may indicate the need for
addi[ional cross sections.
warning: The conveyance zatio (upstream conveyance divided by downstream conveyance) is less than
0.7 or 9reater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth wi[h the lowest,
valid,
watex suzface was used.
.' CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to JunctiOn RS: 71�01
INPUT
Description: Ineffective flow exis[s in the left overbank of this cross-section
becaase of the elevation of Z-25.
Station Elevation Data num= 32
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
i�rtkikYRx4*fi4+Y*##i*14i+t�!##IIs#iitf�x�l4fxi#2�4ih1t#Y!1#tk*Y1lt#14###ix#fYi*Y
1897 4840 1944 4834.07 1975 4826.56 2002 4824.57 2026 4821.95
2091 4822.39 2095 4823.26 2728 4823.18 2159 4824.29 2206 4827.88
2326 4828.49 24�1 4828.49 2648 4828.59 2782 4827.99 2800 4827.99
2934 4029.69 2954 4824.79 2974 4824.79 2992 4828.19 3125 4830.09
3149 4830.09 3356 4830.19 3489 4830.49 3617 4829.79 3777 4830.79
3�86 4826.49 3802 4826.49 382� 4831.09 3965 4831.69 4116 4832.99
4312 4834.49 4312.1 4834.49
Manning's n Values num= 3
Sta n val S[a n Val Sta n Val
hh#iixY##Y41Fii#YR�ifxt4#KfI*ir�lilfliifk*R##+*4
1897 -07 1975 .04 2206 .07
Hank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Exp5n.
1975 2206 34 34 34 �3
Ineffective Plow num= Z
Sta L Sta R Elev Permanent
1897 1897 4843 F
2158 4312.1 4843 F
Blocked Obstructions nvm= 1
Sta L Sta R Elev
#*fxRAltt�xRihxt4hA#4MIi
1897 1877 4824
' CROSS SECTION OUTPUT Profile #100 year
Page 24
STVRAIN.rep
+Y#iii�kt�ih+�*#1Ax41k4*{Ri#ix�ffffk+M#Siklf{ff#Fikt#1ilRfii;M1f44144£1h1�ilfi**k4A4fiiilifY*if
j * E.G. Elev (£t) * qg3y,79 • Element * Left OB � Channel " Right OB •
* Vel Nead (ft) * 3.16 " Wt. n-Val. � 0.070 * 0.040 * w
* W.S. Elev (ft) � 4829.64 * Reach Len. (ft) * 34.00 * 34.00 * 34.00 *
• Cri[ W.S. (ft) * 4829.64 * Flow Area (sq ft) * 19.51 t 1164.53 " *
t E.G. Slope (ft/fU *0.0125�6 * Area (sq f[) * 19.51 " 1336.73 + 1365.97 t
* Q Total (cEs) *16700.00 * Flow (cfs) • 60.71 •16639.29 * *
k Top Width (fU * 1170.51 • Top Width (ftl � 12.69 * 231.00 * 926.82 +
* Vel Total (ft/s) � 14.30 * Avg. Vel. (ft/s) * 3.11 R 14.29 * *
* Max Chl Dpth (fU • 7.68 * Hydr. Depth (fU * 1.54 � 6.36 * *
* Conv. Total (cfs) *148917.5 * Conv. (cfs) * 541.3 *148376.1 * *
* Length W[d. (FU * 34.00 * Wetted Per. (ft) * 13.06 • 183.33 * �
* Min Ch ES (ft) * 4821.95 * Sheaz (lb/sq ft) * l.11 R 4.99 * *
* Alpha * 1.02 * Stream Power (lb/ft s) • 3.65 + 71.26 * *
` FrCtn Loss (ft) • 0.09 • Cum Volume (aCre-ft) ' 28.37 • 174.63 * 633.51 rt
* C 6 E Loss (ft) * � 1.31 * Cum SA (acres) * 6.39 ` 76.82 * 177.73 *
•x.w.�xs�wwaix�wx�+w+��x�x+r+iaxwwwwx+�+��R.tx��r��wR�.ew+:�.v«*��+�rx�rw+�r�+iakx+��r:x.«�i♦
Warning: The energy equation could not be balanced within the specified number of iterations. The
program selected the water surface tha[ had the least amount of error between computed and
assumed values.
warning: Divided flow computed for [his cross-section.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
warning: The conveyance ratio (ups[ream conveyance divided by downstream conveyance) is less than
0.� oz greater than 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was greater than 1.0 f[ (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Warning: During the standard step i[erations, when ihe assumed water surface was set equal to critical
depth, the calculated water surface came back below critical depth. This indicates tha[ there
is not a valid subcritical answer. The progzam defaulted to critical depth.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OIITPUT Profile #base+l target de
++.:.x+..:....<a++..xx..+..+x.x..++...:..a.+..:+...x.........x......xx....•.+.�x..+.:.xx....wxx
� * E.G. Elev (£t1 * 4832.79 ' Element * Left OB * Channel * Right OB +
' * Vel Head (ft) * 3.10 = W[, n-Val. rt 0.070 * 0.040 * *
* W.S. Elev (ft) • 4829.�0 • Aeach Len. (£t) F 34.00 • 34.00 • 34.00 F
* Crit W.S. (ft) * 4829.64 * Flow Area (sq ft) ` 20.33 ' 1176.15 * *
* E.G- Slope (fC/ft) •0.012163 * Area (sq ft) * 20.33 • 1351.40 * *
* Q Total (cfsl t16700.00 * Flow (cfs) * 63.05 *16636.95 * *
* Top width (ft) * 243.95 � Top Width (fU * 12.95 * 231.00 * +
' Vel To[al (ft/S) * 13.96 � Avg. Vel. (tt/S) ' 3.10 * 14.15 * F
* Max Chl Dpth (ft) * 7.75 * Hydr. Depth (ft) * 1.57 < 6.43 rt *
* Conv. Total (cfs) *151422.� * Conv. (cfs) • 5�1.7 *150851.1 * +
• Leng[h Wid. (fU * 34.00 ' Wetted Per. (ft) * 13.33 • 183.33 * *
^ Min Ch E7 (ft) * 4821.95 • Shear (lb/sq ft) * 1.16 • 4.87 � +
• Alpha 3 1.02 • S[ream Power (lb/ft s) * 3.59 + 68.91 • *
' Frctn Loss (ft) * 0.09 * Cum Volume (acre-ft) * 29.61 * 181.16 * 374.01 �
* C s E Loss (fU • 1.28 * Cum SA (acres) * 6.92 • 16.84 • 9�.95 *
a+�+r++�:w+waw+�x..s««�+��x�+�W�w:x+y++t+��FRrxiri+3���wri�++�:Rxx�w�aa�t�+ii���R�+�i�����xtxr�
Warning: The velocity head has changed by more than 0.5 ft (0.15 m1 . Thia may indicate [he need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional croas sections.
Warning: The enezgy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this loca[ion. The critical depth with the lowest,
valid,
water surface was used.
CAOSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction RS: 71fi34
INPUT
Desczip[ion: This cross-section is the downstream edge of [he rip-rap rundown.
Zneffective flow exists in the left overbank of this cross-section
. because of the elevation of I-25.
Page 25
STVRAIN.rep
Station Elevation Oata num= 34
Sta Elev Sta Elev Sta Elev Sta EleV Sta Elev
� k4hhflkl4Fi44#iix*ilMt�t4i�IlftWlFt�+4#+�4}1i1ki#f#fY44#i4i##k##iikfk11kf1lf11f♦
1859 4832 1929 4827.01 1961 4019.73 19�5 4819.15 1986 4819.52
2053 4819.86 2093 4819.68 2090 4819.16 2123 4819.51 2150 4819.69
2161 4819.61 2200 4827 2326 4828.29 2471 4828.29 2648 4828.39
2782 462�.�9 2800 482�.�9 2934 4827.49 2954 4824.59 2974 4824.59
2992 4827.99 3125 4029.89 3149 4829.89 3356 4829.99 3489 4830.29
3617 4B29.59 3777 4830.59 3786 4826.29 3802 4826.29 3827 483�.89
3965 4831.69 4116 4832.79 4312 4834.29 4312.7 4834.29
Manning'S n Value5 num= 3
Sta n Va1 Sta n Val Sta n Val
txtfi111x}fliiMiYfxttkfiiAtYi+if�i#1lfkfilxkilil
1859 .07 1929 .04 2200 .07
Eank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Eapan.
1929 2200 26 26 26 .3 .5
Ineffective Flow num= �
Sta L Sta R Elev Permanent
1859 181� 4843 F
2270 4312.1 4843 F
Blocked obstructions num= 1 .
Sta L Sta R Elev .
.+...:+...:x:.:+....x«a.
7859 1877 4824
CROSS SECTION OUTPUT PYofile q100 year
!tt#i##11l4#fY4Ax#ki1x4lilF#4Af#1tt11!#i1Y4Y41f##1R!#iYfRR411tii#f1f1#ifllflittt4liff#+4i##
*;E*G. Elev (ft) * 4831.18 � Element * Left OB * Channel * Right OH *
* Vel Nead (fU k 0.53 • W[. n-Val. * 0.070 * 0.040 + 0.0�0 �
• W.S. Elev (ft) * 4830.64 ' Reach Len. (ft) * 26.00 * 26.00 26.00
� Crit w.S. (ft) ' 4825.36 * Flow Area (sq ft) * 92.46 � 2730.37 * 229.76 �
• E.G. Slope (ft/ft) *0.001185 * Area (sq ft) ` 92.46 * 2730.37 * 2986.34 *
+ Q Total (cfs) *16700.00 � Flow (cts) 100.40 *16229.74 370.86 *
� Top Width (fU * 1947.58 ' Top Width (fU ; 50.93 * 2�1.00 * 1625.64
• Vel Total (f[/s) ' 5.47 * Avg. Vel. (ft/s) 4 1.09 * 5.94 * 1.61 +
* Max Chl Dpth (ft) * 11.49 * Hydr. Oepth (fU 1.82 10.08 3.28
�� * Conv. Total (cfs) *985030.0 ' Conv. (cfs) * 2916.0 *471342.9 � 10771.1 *
t Length Wtd. (ft) ' 26.00 • wetted Pec. (ft) ` 51.06 * z72.55 * 70.00
R Min Ch E1 (ft) ' 4819.15 • Shear (lb/sq ft) ^ 0.13 i 0.74 k 0.24 *
* Alpha ' 1.15 • S[ieam Powei (lb/ft S) * 0.15 * 4.41 i 0.39 *
* Frctn Loss (ft) • 0.03 * Cum Volume (acre-ft� 28.33 173.05 * 631.82 i
• C � E Loss (Pt) * 0.02 * Cum SA (acres) " 6.37 16.62 176.74
ftY#YIfiY+x+f#4iTfiYixR*4+�xii+kkY+1#+ixF4+xR#iifFfi�lfYiilt#i�iii4+i41fI1i4ifAfi+fk++1Y1Flflii
Note: Multiple critical depths weze found at this location. The critical depth with the lowes[,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile*#base'A ta;get`d;„****; **`y};R#i#e#" k+::...+**.+++:.+..+..*
•ME*G?*Elevk(ft)'Yy**;*'*`f4831*42 *xElement{ * Left OB e Channel * Right OB *
* Vel Head (ft) " 0.54 * Wt. n-Val. ' 0.070 0.040 * `
* W.S. Elev (fU * 4830.88 * Reach Len. (ft) * 26.00 k 26.00 26.00
• 4825-36 • Flow Area (sq f[) * 1�5.10 * 2795.47 4 *
* CYit W.S. (ft) � +
* E.G. Slope (ft/ft) •0.001166 E Area (sq ft) ` 105.10 * 2795.4� * *
� Q Total (cfs) *16700.00 * Flow (c£s) * lle.12 •16581.80 * ;
• Top width (ft) * 325.3a * Top width (ft) 5a.3o * 271.00 ^ *
* vel Total (ft/s) i 5.76 ` Avg. Vel. (ft/s) � 1.12 5.93 *
t Max Chl Dpth (ft) * 11.73 * Hydr. Depth (fU k 7.94 * 10.32 * *
* Conv. Total (cfs) �489083.0 * Conv. (cfsl 3459.Z k485623.8 * x
� Length Wtd. (ft) # 26.00 + Wetted Per. (ftl * 54.44 * 276.43 e
* Min Ch E1 (ft) ' 4019.15 ' Shear (lb/sq ft) * 0.14 e 0.74 � *
1.05 � Stzeam Power (lb/ft s) ` 0.16 4.37 *
* Alpha ' , . «
i Frctn Loss (ft) * 0.03 * Cum Volume (acre-ft) * 29.56 * 179.54 374.01
C & E Loss (ftI 0.02 • Cum SA (acres) 6.90 16.64 * 77.95 �
i4R!##f#i#�I#iIIfX411Sii1+i+k�R!#ifiMftli}1kM11/Y1R*41t41Ii#�ik4ilR4#41i4ifiki4li#i11�441RkkYt1
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
� water surface was used.
�' CR089 SECTION
Page 26
STVRAIN.rep
RIVER: St. Vrai❑ River
REACH: I-25 to Sunc[ion RS: 71608
INPUT
Descrip[ion: This cross-section is appmximately 40 feet downstream of the
rip-rap rundown.
S[ation Elevation Data num= 30
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
:.++«..+.......:...+..,,,...+«.«..+,++.+.....��+..+.+...+..........:.+.,+:�:...+
1858 4832 1948 4826.2"1 19'J2 4820 1985 4819.05 1988 9818.51
2160 4818.1 2163 4819.14 2201 4826.83 2326 4828.24 2471 4828.24
2648 4828.34 2782 482�.�4 2600 4827.74 2934 4827.44 2954 4824.54
2974 4824.54 2992 4827.94 3125 4829.84 3149 4829.84 3356 4829.94
3469 4830.24 3617 4829.54 3799 4830.54 3786 4ffi6.24 3802 4826.24
382� 4830.84 3965 4831.64 4116 4832.74 4312 4834.24 4312.1 4834.24
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
............:....:..:...x.:::.:.:..,.:.:.......+
1858 .07 1948 .04 2201 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Ezpan.
1948 2201 376 440 483 .3 .5
Ineffective Flow num= 1
Sta L Sta A Elev PermanenC
2283 4312.1 4843 F
CROSS SECTION OUTPUT Profile #100 year
....x+.+....:.x.....w«..+aa....+..+.+.a:++xw+..+.+....«++::.:..:........+r+++.+.+.+.,.:.+:..,....�
* E.G. Elev (ft) + 4831.13 • Element ' Left OH * Chaffiel ' Right OB *
* Vel Aead (ft) � 0.50 * Wt. n-Val. ' 0.070 * 0.040 • 0.�70 *
* W.S. Elev (ft) * 4830.63 * Reach Len. (fU * 3�6.00 * 440.00 * 483.00 �
* Crit W.S. (ftl • 4824.49 * Flow Area (sq ft) * 149.42 • 2806.71 • 273.81 *
* E.G. Slope (ft/f[) *0.000976 * Area (sq ft) * 149.42 * 2806.71 • 305'7.82 *
� * Q Total (cfs) t16']00.00 * Flow (cfs) * 166.45 R16127.83 • 4�5."/2 *
' Top Width (fU * 1946.38 * Top Width (ft) 68.51 253.00 ' 1624.87
� • Vel Total (ft/s) ` 5.17 * Avg. Vel. (ft/s) ' 1.11 * 5 JS • 1.48 *
• Max Chl �pth (ft) • 12.53 * Hydr. Depth (ft) • 2.18 • 11.09 • 3.34 *
* Conv. Total �cfs) •534440.4 * COnv. (cfs) * 5326.8 . *516129.5 ' 12984.1 '
� t Length Wtd. (ft) ' 444.18 • Wetted Per. (ft) ' 68.65 " 254.93 * 82.01 •
' Min Ch E1 (f[) * 4818.10 * Shear !lb/Sq ft) 3 0.13 "' 0.67 • 0.20 *
* Alpha + 1.20 * Stream Power Qb/£t sl ' 0.15 * 3.86 • 0.30 *
� FICtn LOss (ft) * 0.4'1 " Cum Volume (aCLe-f[) "' 28.25 * 191.39 * 630.01 •
' C & E Loss (ft) * 0.02 * Cum SA (acres) * 6.33 * 16.47 + 175.77 *
:+..+.:.::..::.....+:......::.:..::..:.:.+x..xx..+wx..>+a....::::.:.......•a.«...:::.::.:.+w.x+
Note: Multiple criLical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
CAOSS SECTION 0[1TPUT Profile qbase+l target de
++:x:.....:+.:.+<x.x�......,.+a......,+«.+.+k+��..:x.+...+e..+.:.....x:....++++.+.+.:+.a..x..r.:::.
* E.G. Elev (fU �" 4831.38 * Element * Left OH * Channel + RighC OB t
* Vel Head (ft) � 0.51 * Wt. n-Val. * 0.070 * 0.040 * �
" W.S. Elev (ft) i 4830.8'1 t ReaCh Len. (ft) * 376.00 ' 440.00 * 483.00 *
* Crit W.S. (ft) * 4824.49 * Flow Area (sq ft) " 166.19 + 2866.99 ' '
t E.G. Slope (ft/ft) *0.0009'l3 * Area (sq ft) * 166.19 * 2866.99 • *
* Q Total (cfs) "16700.0a � Flow (cfs) � 19L 51 �76508.49 * *
* Top Width (ft) * 325.25 * Top Width (ft) * '72.25 * 253.00 * *
" Vel Total (P[/s) + 5.51 * Avg. Vel. (ft/s) * 1.15 * 5.76 * �
* Max Chl Dpth (ft) * 12 J7 * Hydr. Depth (ft) � 2.30 * 11.33 * *
* Conv. To[al (cfs) *535298.5 � Conv. (cfs) * 6138.5 �529160.0 * *
* Length Wtd. (ft) * 443.00 * Wetted Per. (ft) * �2.40 k 258.89 * *
' Min Ch E1 (ft) * 4818.10 • Shear (lb/sq ft) * 0.14 k 0.67 * *
• Alpha + 1.08 * Stream Power Qb/ft sl * 0.16 * 3.87 • *
' Frctn Loss (ft) " 0.46 ; Cum Volume (acre-ft) * 29.48 * 177.85 * 374.01 '
t C � E Loss (ft) * 0.02 * Cum SA (acres) * 6.86 �' 16.48 * �9.95 *
�..+�+i��w+w.�x�.i.t+:��t.:x.wx�r:+.+rxw�Mrrx:«++�.��rw��**�.:t..:xrx:rx�r���+:�r�»wtatW.:t:��i
Note: Multiple critical dep[hs were found at this location. The critical depth with the lowest,
�; valid,
� energy was used.
Page 2'l
STVRAIN.rep
; LATERAL STRUCTURE
RIVER: St. Vrain Aiver
REACH: I-25 to Junction RS: "71465
INPOT
Description: This lateral weir is ihe first location where water overtops the
berm.
Lateral stzucture position = Next ot left bank staLion
Distance from Upstream %S = 140
Oeck/Roadway Width = 30
Weir Coefficient = 2.63
Weir Flow. Reference = Water Surtace
Weir Embankment Coordinates num = 6
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
•+...«...+.a:+:......«+x.+............:...xr:.++.:.+.:...:.++.x..a....+...�++.+.
1587 4831 1662 4830 1693 4829 1758 4829 ll94 4830
1821 4831
weir crest shape = Broad Crested
LATERAL STRUCTURE OUTPUT Piofile N100 year Lat Stzuc[
kfilfl#R[141Yklif411'.lif#ii'.!R#i#MfiiflMhkf#4ii1k#Y1liii*1:ii+4lifiYYlRf4F1!
' E.G. US. (fU * 4830.97 " Weir Sta US (ft) ' 1628.42 *
* W.S. US. (ft) * 4630.49 * Weir Sta DS (fCl * 1794.34 *
* E.G. DS (ft) ' 4830.71 • Weir Max Depth Ift) ^ 1.38 �
* W.S. DS (ft) * 4830.25 � weir Avg Depth (ft) ' ��8� *
* Q US (c£sl *16700.00 � weir Submerg • a.ao '
+ Q Leaving Total (cfs) ` 402.77 * Min E1 Weir Flow (f[) * 4829.00 *
* Q DS (cfs) *16297.26 * Wr Top Wdth (ft) + 165.92 {
R Perc 4 Leaving * 2.41 * Q Gate Group (cfs) *
* Q Weir (cfs) * 402.7'1 * Gate Open Ht (ft) *
* Q Gates (cfs) + * Gate #Open * '
* p Culv (cfsl * + Gate Area (sq fU * *
� * Q Lat RC (cfs) Y * Gate Submerg i *
�� * Weir FlOw AYea (sq ft) 144.87 * Gate InveYt (ft)
#AfiR#tiFi1F#4i11tt#441F4tiff#14iR!#Yfltkf�4klY41fiR*+i4#4i'.lf1i#Y!#F1iFf4Y
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greatec than 1.4. This may indicate the need for additional crosa sections.
LATERAL STAUCTURE OUTPUT Profile #base+l taYget de Lat StruCt
♦t�txa+r�.x:��a+f...�+Rx:ai..at+.r::�aw++.t+R�*«r.�+ti+xx+a.r:k+k+x+t+tx�++
* E.G. U5. (ft) • 4831.23 ' Weiz Sta US (fU ' 1608.72 •
* W.S. US. (ft) • 4830.73 • Weir Sta OS (ft) * 1803.18 *
' E.G. DS (ft) � 4830.97 ' Weii MaX Depth (ft) k 1.63 *
* W.S. DS (ft) * 4830.50 * Weir Avg Depth (ft) ` 0.97 ;
* Q US (cfs) *16700.00 * Weir Submerg • 0.00
* Q Leaving Total (cfs) • 559.82 ' Min E1 Weir Plow (ft) ' 4829.00 '
* Q DS (Cfs) '16140.40 ' 41L Top Wdth (ft) " 194.46 *
* Perc Q Leaving * 3.35 * 4 Gate Group (cfs) * e
* Q Weir (Cfs) ' 559.82 * Gate Open Ht (ft) *
+ Q Gates (cfs) i ' Gate 1{Open * *
+ Q Culv (cfs) * * Gate Area (sq ft) * *
* Q Lat AC (cfs) * * Gate Submerg
* Weir Flow Azea (sq ft) • 189.06 * Gate Invert (ft) ` �
♦++a�xtw���*:r�+�x:iri+t++*x:yxr+*•�:iFr.+�ay:iw.x+t+x+:�irr:++rix«i�x.at
Warning: The energy equation could not be balanced within the specified number of iterations. The
program selected the wa[er surface that had the least amount of error between computed and
assumed values.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: During the standard step iterations, when the assumed watex surface was set equal to critical
depth, the calculated wa[er snrface came back below critical depth. This indicates that there
is not a valid subcritical answer. The program defaulted to critical depth.
Warning: There is no Elow in the channel. Check that the channel stationa are correctly coded. To force
Elow into the channel, a levee or ineffective flow may have to be added or the Manning's n of
the overbank could be increased.
1 CROSS SECTION
Page 28
STVRAZN.rep
RIVER: S[. Vrain River
REACH: I-25 to �unction RS: 71168
INPUT
Description:
Station Eleva[ion Da[a num= 23
Sta � Elev S[a Elev Sta Elev Sta EleV Sta Elev
#ik4k#i+i}kktittftikfhkxill�YFxx#1kYhFIMfrt#Y+Y#kF4+k;!#It4�4k1ifi1f1f1YiiY#4lYi4
1993.5 4830.8 2039 4B27.9 2057.6 4821.3 2076 4819.5 2096.3 4818.7
2101 4818.4 2204.5 4818.2 222� 4819.5 2255 4826.9 2358.4 4825
2749 4825 2767 4823.5 2795 4823.5 2824 4824.8 3069 4827
3949 4829 3969 4829 3975 4827 3999 4829 4008 4829
4130 4831 4294 4833 4564 4835
Manning's n Values num= 3
Sta n Val Sta n Val Sta n val
k.....+..++..........+:.......+w+«..a.....xxxx..
1993.5 .0� 2038 .04 2255 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
2038 2255 376 440 483 .3 .5
Ineffective Flow num= 1
Sta L Sta A Elev Permanent
2563 4%4 4843 F
CROSS SECTION OUTPllT Profile #100 year
.+..+.+.xx.+x:..,+.a.:«+x:........+.++x<:..+xwx.xx.x�..w:....+++..+...w++++a++�......,.x.•...+..
' E.G. Elev (ft) * 4830.64 * Element + LEf[ OB * Chaffiel � Right OS *
• Vel Head (ft) * 0.45 � Wt. n-Vai. + 0.070 * 0.040 ' 0.070 w
k W.S. -Elev (fU • 4830.19 ' Reach Len. (ft) * 376.00 * 440.00 '� 483.00 •
* Crit W.S. (fU ' 4825.84 * Flow Area (sq EU * 40.08 + 2228.30 * 1498.92 *
• E.G. Slope (f[/fU *0.001148 * Area (sq fU * 40.08 '� 2228.30 • 6048.58 •
' Q Total (cfs) �1629'7.26 * Flow (cfs) * 31.47 *13169.34 ' 3096.45 i
i Top Width (ft) * 2077.39 * Top Width (ft) * 35.07 * 217.00 * 1825.32 '
� � Vel To[al (ft/s) + 4.33 * Avg. Vel. (ft/s) � 0.79 * 5.91 * 2.07 *
' Max Chl Dpth (ft) 11.99 • Hydr. Depth (ft) 1.14 10.27 4.87
t Conv. TOtal (cfs) *480909.6 • Conv. (Cfs) * 928.8 '�388606.9 * 91371.9 '
� R Length Wtd. (ft) * 450.26 • Wetted Per. (ft) * 35.15 * 219.06 F 308.02 *
� * Min Ch E1 (fU * 4818.20 * Shear (lb/sq ft) * 0.08 * 0.73 * 0.35 *
* Alpha * 1.55 k StTeam Power (lb/ft s) * 0.06 * 4.31 * 0.']2 +
* Frctn Loss (ft) * 0.67 * Cum Volume (acre-ft) * 27.44 * 145.96 * 579.52 *
t C & E Loss (ft) ' 0.04 * Cum SA (acYes) * 5.88 • 14.09 * 156.64 *
xRar,ix��a�xxx�xx.rt.::.��.R��xw+w�+r+t�t���xx�xxx:axrrrr�rr�rM++��+t+t+x�xxxwr�ix�i.r+�F++:t:�•
Note: Mul[iple critical depths were found a[ Chis location. The critical depth wiih the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Piofile #baseal tai9et de
•�t+w��xxwr.r�tz+:.:..�rrr�t:ai�..wx�wx�i�x+:+�+���*��t�:a�:.atr++a+�t++���w�xnir,rr..+++:r����:rK
* E.G. Elev (ft) * 4830.90 ' Element < Left OB * Channel * Right OB *
• Vel Head (ft) * 0.46 • Wt. n-Val. * 0.0']0 * 0.040 * 0.070 R
• W.S. Elev (ft) • 4830.44 * Reach Len. (ft) * 376.00 * 440.00 * 483.00 *
* Crit W.S. (ft) ' 4825.64 * Flow Atea (sq ft) * 49.33 * 2282.55 * 1287.84 +
* E.G. Slope (ft/ft) *0.00110'/ * Area (sq ft) * 49.33 * 2282.55 * 128�.64 *
* Q Total (cfs) t16140.40 " Flow (cfs) * 40.76 *13459.54 * 2640.10 *
* Top Width (ft) � 530.91 * Top Width (fU ' 38.91 * 217.00 * 255.00 •
* Vel Total (ft/s) � 4.46 * Avg. Vel. (ft/s) * 0.83 � 5.90 • 2.05 '
* Max Chl Dpth (fU • 12.24 * Hydr. Depih (ft) * 1.27 * 10.52 * 5.05 *
* Conv. Total (cfs) *405073.8 � Conv. (cfs) + 1224.9 '404505.0 ` 79344.0 *
* Length Wtd. (ft) R 449.38 + Wetted Per. (fU • 38.99 * 219.06 * 260.45 •
" Min Ch E1 (ft) k 4818.20 * Shear (lb/sq ft) * 0.09 * 0.72 * 0.34 x
t Alpha * 1.49 * Stream Power (lh/ft s) * 0.07 * 4.25 R �.70 *
� Frctn Loss (ft) * 0.63 • Cum Volume (acre-ft) * 28.55 * 151.85 * 366.87 *
* C & E Loss (fU * 0.03 + Cum SA (aCYeB) k 6.38 • 14.11 ' 76.54 a
44fM%*�.FM++i�Yfl;fk##i+fA'.!i#M1fi4!*iY*l1:�.lfY#RYYfkilifR+4at14#f14iY14f�4�:tffttlll>1lR�.liifitt1i41##!#k
Note: Multiple critical depths were found at this location. The critical depth with ihe lowest,
valid,
energy was used.
� CROSS SECTION
Page 29
STVRAIN.rep
RIVER: St. Vrain River
REACH: I-25 to Junctian RS: �0'128
INP[1T
Descrip[ion:
S[a[io� Eleva[ion Data num= 34
Sta Elev Sta Elev S[a Elev Sta Elev Sta Elev �
+aaiaitta�ax��wr�xi+t+��a.;wrt�+yk.ii��i�wFr+x*�r:wx:k.�,�xx:«:3xx�+aR��x�w�����xr
2129 4829.5 2155 4819.55 2214 481H.25 2249 4818.25 2281 4819.95
2330 4B27.05 2424 4824.25 2597 4824.25 2626 4822.75 2656 4824.35
27B4 4824.95 2800 4822.55 2836 4622.55 2850 4823.45 2887 4825.15
3032 4825.15 30'12 4826.55 3086 4823.55 3253 4823.65 3415 4823.65
3582 4823.65 3�60 4823.65 3'796 4828.95 3849 4826.95 3945 4026.95
4133 4827.85 4145 4824.85 4153 4824.85 4161 4826.05 4378 4831.45
4525 4833.05 4595 4833.35 4753 4834.95 4932 4836.75
Manning's n Values num= 3
Sta n Val Sta n Val S[a n Val
�.<xx.«a....«....r......+.....xx..+..«.+�.x.::..
2129 .07 2129 .04 2310 .07
Bank Sta: Left Right Lengths: Left Channel Right Coef£ Conir. Expan.
2129 2310 800.5 494 504.5 .3 .5
Ineffective Flaw num= 1
Sta L Sta R Elev Permanent
2866 4932 4843 F
Blocked Obstructions num= 1
Sta L Sta R Elev
�a+�+y�xrrxsr��r�r�x{.e�+
2506 3792 4825.91
CROSS SECTION OUTPUT Profile q100 year
+,.x.,..:+x.x...........«..+.,.:.x:a....++.......x.xx:..::.�..+..+w...�x..+�+:..x.a,....a+...+x+....
• E.G Elev (ft) * 4829.93 � Element * Left OB * Channel * Right Ofl *
+ Vel Head (ft) • 0.58 • Wt. n-Val. * * 0.040 * 0.070 *
�d * W.S. Elev IfU • 4829.35 * Reach Len. (ft) t B00.50 * 494.00 • 509.50 *
�' • Crit W.S. (ft) * 4827.29 * Flow Area (sq ft) * 1628.29 • 20"18.66
• E.G. Slope (ft/ft) "'0.001988 * Area (sq ft) " * 1628.29 * 6233.55 •
* Q Total (cfs) *1629'1.26 ' Plow (cfs) ' *11567.32 • 4729.95 *
* Top wid[h (ft) * 2164.29 � Top Width (fU * * 180.61 * 1983.63 �
* Vel Total (ft/s) * 4.40 * Avg. Vel. (f[/sl * * 7.10 * 2.28 * �
* Max Chl Dpth (ft) ' 11.10 * Hydr. Depth (ft) ' ' 9.02 * 3_"14 *
� Conv. Total (cfs) �365486.0 � Conv. (cfs) * *�59411.1 *106074.9 '
* Length Wtd. (ft) * 498.12 ` Wetted Per. (ft) * • 183.34 * 557.69 *
* Min Ch E1 (ft) * 4818.25 • Shear Qb/sq ftl * ' 1.10 * 0.46 *
* Alpha ' 1.93 * Stream Power (lb/ft s) * * 7.83 * 1.05 �
* Prctn Loss (ft) ' 0.86 * Cum Volume (acre-ft) " 27.26 ' 126.49 * 511.43 *
* C & E Loss (ft) * 0.12 * Cum SA (acies) ' 5.93 * 12.08 ` 135.52 •
#it;t##ifi##4iM1h44i1MifM�1t#'/'.lif+kYtk+fA144fTFktf#4i+#Y##Iipf4li##41At1i*A1!'.!##!!##YY#iY441#4feh
Note: Multiple critical dep[hs were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OOTPOT Pzofile #baserl target de
��+it*x�++ntrir�r.rr.rw�:ii+�+�txrr,xr:k��t�+ta+i��rx:.�+�+in�r�r,r��+�t�rit«�a++��ifsi���r���r+:x
* E.G. Elev (ft) ` 4830.24 t Element * Left OB * Channel � Right OH •
^ Vel Aead (ft) * 0.56 + Wt. n-Val. * * 0.040 * 0.070 *
* W.S. Elev (ft) ' 4829.68 * Reach Len. (ft) * 800.50 * 494.00 ` 504.50 '"
• Crit W.S. (ft) * 482'/.21 * Flow Area (sq fU * • 16B7.74 * 1937.25 '
* E.G. Slope (£t/ft) *0.001807 ' Azea (sq ft) ' ' 1667 J4 * 1937.25 '
* Q Total (cfs) *16140.40 '" Flow (cfs) * '11691.03 * 4459.37 *
+ Top Width (ft) * 651.00 * Tap Wid[h (ft) * * 181.Oa + 470.00 *
* Vel Total (ft/s) • 4.45 * Avg. Vel. (ft/s) * * 6.92 * �.30 •
� Max Chl Dpih (ft) ' 11.43 • Hydr. Depth (f[) " * 9.3z * 4.12 *
� Conv. Total (cfs) *379696.3 " Conv. (cfs) R `274791.4 '104904.9 t
" Length Wtd. (fU * 498.14 * Wetted Pei. (ft) � a 183.93 • 475.46 *
* Min Ch E1 (ft) ' 4818.25 i Shear (lb/sq fU * � 1.04 � 0.46 *
* Alpha * 1.82 � Stream Power (lb/ft s) * � 7.16 � 1.06 '
• Frctn Loss (ft) " 0 J6 * Cum Volume (acre-ft) * 2b.34 " 131.79 * 348.99 *
* C 6 E Loss (fU ' 0.12 * Cnm SA (acres) * 6.21 * 12.10 * "72.52 *
. �+x+.++t+.+a+vxr+:::aii��it�xi+++�+ri��wax++�+it++iaiwax+�r�+�++��k�.rxx+t����*xR+���xrw�++�i�+��wx
Yage 30
STVRAIN.rep �
' Note: Multiple critical depths were found at this loca[ion. The critical depth with the lowest,
valid,
energy was used.
LATERAL S'LRUCTURE
RIVER: S[. Vrain Rivei .
REACH: I-25 to Sunc[ion RS: 70584
INPUT
Descrip[ion:
Lateral structure position = Next ot left bank station
Distance from Upstream XS = 165
Deck/Roadway width = 35
Weir Coefficien[ = 2.63
Weir Flow Reference = Water Surface
Weir Embankmen[ Coordinates num = 4
Sta Elev Sta Elev Sta Elev Sta Elev
�++r,w.xix�+ri:t.:::».xx�.++a+�+++r�:*+++art�:�:i:t�a�it+.i:�kt��
2755 4830 . 2795 4829 2805 4827 2845 4830
weir crest shape = Broad Crested
LATERAL STAUCTURE O[7TPUT PZofile #100 year Lat StYuct
r���i+t::+.rr,xxr+a.aria����t�:+x�waxxxrr+xaw+x+e..��x.+rw..w�W+++++y<Rtta
* E.G. US. (fU * 4829.60 • Weir Sta US (ft) * 2767.20 t
* W.S. US. (ft) * 4829.10 • Weir Sta DS (fU ` 2831.51 *
` E.G. DS (fU * 4829.42 • Weir Max Depth (ft) * 2.04 *
* W.S. DS (fU ' 4828.9"1 t Weir Avg �epth (ft) • 1.18 •
' Q US (c£s) k1629�.26 + Weir Submerg • 0.00 •
• Q Leaving Total (cfs) * 242.25 * Min E1 Weir Flow (ft) * 4827.00 •
* Q DS (Cfs) *16055.06 ' Wr Top Wdth (ft) ' 64.30 •
�" Perc Q Leaving • 1.49 * Q Gate Group (cfs) * '"
� * p Weir (cfs) �* 242.25 • Gate Open Ht (ft) e R
' 4 Gates (cfsl • Gate #Ope�
* Q Cu1v (cfs) • • Gate Area (sq ft) * *
* Q Lat RC (cfs) * • Gate Submerg * k
' Weir Flow Area (sq ft) ' 75.62 * Gate Invert (fU * '
R%#14#4tttffft��.1'.lR11�.l111'f*#Yikk4+#iiiiA'.lf;�1'4ffli#1Aih}+##%ttR+�flYliif'ki♦
Warnin9: The cwveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
LATERAL STRUCTURE OUTPOT Profile �base+l target de Lat Strvct
��r���ai+t+�i����x�x+x�Kx+ax����++�x�«����r�t��+«�:�::�a��r����r++��+�aw
• E.G. US. (ftl * 4829.95 * Weir Sta US (ft) • 2762.23 •
• W.5. US. (ft) * 4829.47 ' WeiL Sta OS Ift) * 2836.49 *
* E.G. OS (ft) * 4829.79 • Weir Max Oepth (ft) ` 2.42 •
' W.S. DS (ft) " 4829.35 • Weir Avg Depth (ft) * 1.37 *
' Q US (cfs) *16140.40 • Weir Submerg * 0.00 *
* Q Leaving Total (cfs) * 351.11 ' Min E1 Weir Flow (ft) * 4827.00 *
• Q DS (cfs) *15789.56 • Wr Top Wdth (ft) * '14.26 *
* Perc Q Leaving * 2.17 + q Gate Group (cfs) • *
• Q Weir (cfs) * 351.11 * Gate Open Ht (ft) * *
* Q Gates (cfsl * + Gate #Open * *
" Q Culv (cfs) * i Gate Area (sq ft) * *
* Q Lat RC (Cfs) * • Gate Submeig • •
* Weir FloW ATea (sq ft) * 101.49 • Gate Invert (ft) * *
#i+�l�Yf11##h141#�##i;1�4ifFiil#i4+##�#4lfi##/r*krtlfe'.l4Rf431Fh'RfiMi4##kYk#k+fY
Warning: The energy equation could not be balanced within the specified number of iterations. The
program selected the water surface that had the least amount of error between computed and
assumed values.
Warning: The conveyance ratio (upstxeam conveyance divided by dovmstream conveyance) is less than
o.7 or greater than 1.4. This may indicate the need for additional cross sections.
warning: During the standard step iterations, whe❑ the assumed water surface was set equal to critical
depth, the calculated watex surface came back below critical depth. This indicates that there
is not a valid subcritical answer. The program defaulted to critical depth.
Warning: There is no flow in ihe channel. Check that the channel stations are correctly coded. To force
£low into the channel, a levee or ineffective flow may have to be added or [he Manning's n of
� the overbank could be increased.
Page 31
STVRAIN.rep
, CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Junction AS: �0235
INPUT
Description:
Station Elevation Data num= 21 �
S[a Elev Sta Elev Sta Elev Sta Elev Sta Elev
....+.....,.,.+...«...+....+...:..:«.�:«+.+.....+.:........::....+::...+...:.«..
2069 4829 2117 482�.2 2136.9 4821 2181 4817.4 2224-5 4817.4 �
2240.2 4819.3 2255.2 4820.8 2283 4826.3 2408 4823 2657 4823
2679 4825 2�41 4825 3175 4825 3829 4827 3989 4827
4003 4825 4028 4825 4078 4827 4126 4829 4192 4831
4469 4833
Manning's n Values num= 3
SCa n Val Sta n Val Sta n Val
x�«Mwi+.���xirx�.«3a�+a�•wx:tair�i��+++t+++��xt+
2069 .07 211� .04 2283 .07
Bank Sta: Left Right Lengtha: Left Channel Right Coeff Contr. Expan.
2117 2203 800.5 494 504.5 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
3068 4469 4843 F
CROSS SECTION OUTPUT Piofile N100 yeaY
♦fxR#i+11�i4i4iY�#tttfYFi11!##4tf+i1lfR#liflflf#Ms41t1#ff4fi41Yf!#4ff#tF�₹Y11!##ifflt*Yi1li1R1t
� E.G. Elev (fU * 4828.95 * Element * Left OH * Channel • Right OB *
* Vel Head (fU ' 0.34 ' Wt. n-VaL ' 0.070 * 0-040 ' 0.070 •
* w.S. Elev (ft) ` 4828.61 ` Reach Len. (ft) ' 800.50 • 494.00 � 504.50 *
* Crit W.S. (ft) * 4826.36 * Flow Azea (sq ftl ` 26.46 * 1422.35 � 3396.74 "
* E.G. Slope (ft/ft) *0.001522 * area (sq ft) * 26.46 * 1422.35 • 6034.78 R
Y Q Total (cfs) *16055.06 * Flow Icfs) * 17.34 * 8568.95 * 7468.76
j i Top Width (ft) * 203�.18 * Tap Width (ft) ` 37.57 * 166.00 « 1833.61 *
.� * Vel Total (ft/s) 3.31 � Avg. Vel. (ft/s) 0.66 6.02 2.20
* Max Chl Dp[h (fU � 11.21 * Hydz. Depth (ftl * 0.70 * 8.57 * 4.33 *
� Conv. Total (cfs) *411529.7 * Conv. (cfs) * 444.5 *219642.9 *191442.3 "
� Length Wtd. (ft) • 500.36 " Wetted Per. !ft) + 37.60 • 167.02 " 785.13 *
* Min Ch E1 (fU � 4817.40 * Shear (lb/sq fU 0.07 a 0.81 * 0.41 *
* Alpha * 1.97 * Stream Power (lb/ft s) * 0.04 * 4.85 * 0.90 *
* Frctn Loss (ft) * 0.83 * Cum Volume (acre-ft) 27.02 * 109.19 * 440.39 *
• C & E Loss (fU * 0.01 ' Cum SA (acres) * 5.39 * 10.12 113.42
i1FfY1ilxfi#iik#tttiiYf#k!##IR#l14k1i11kn1YxxfY11!#kiRRli4iflif4fRxf#4ixf4#iiftff#Rt14##1+1�Rt4
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Pmfile #baseal taYget de
h�k1�41xMiti+##«4F#*1++#t#*t111MY1#h4iili#i4f##fYfltf4Tlf#fifii+if�4##YfM#141fA*1Yl1fRlY1fi
**E*G. Elev (ft) • 4629.36 * Element * Left OB * Channel * Right OB *
* Vel Head (ft) • 0.31 • Wt. n-Val. * 0.070 • 0.040 • 0.070 f
+ W.S. Elev (ft) " 4829.04 - x Reach Len. (fU * 800.50 * 494.00 • 504.50 `
• Crit W.S. (ft) R 4826.28 * Plow Area (sq ft) • 45.28 ' 1494.48 * 3260.75
* E.G. Slope (ft/ft) R0.001300 * Area (sq ft) e 45.28 * 1494.48 * 3260.75 *
• Q Total (cfs) �15789.56 � Flow (c[s) * 33.29 + 8598.63 + 7157.63 *
* Top Width (ft) * 881.00 � Top Width (ft) * 48.00 ; 166.00 667.00 *
* Vel Total (ft/s) � 3.29 " Av9. Vel. (ft/s) 0.74 5.�5 ' 2.20
� Max Chl Opth (fU * 11.64 ` Hydr. Depth (ft) * 0.94 * 9.00 4.89 *
* Conv. Total (cfs) *437994.0 * Conv. (Cfs) * 923.6 '238521.5 *198548.9 *
* Length Wtd. (ft) ` 500.94 * Wetted Per. (ft) * 48.00 * 167.82 ` 671.18
* Min Ch E1 (ft) * 4817.40 R Sheai (lb/sq ftl 0.08 * 0 J2 ` 0.39 a
� Alpha x 1.87 R Stream Power Qb/ft s) * 0.06 * 4.16 4 0.87 Y
* Frctn Loss (ft) • 0.70 ' Cum Volume (acre-fU * 27.92 113.75 318.89
* C & E Lose (ft) • 0.01 * Cum SA (acres) * 5.77 * 10.13 * 65.94 *
;Y*f�fi#f�t4#Y#ttk4+��+4#kl4f1i4fiR#4l4k*1k#i11h1fi11111Y1Y11f��tik11k4ifr1ilRRi#Ml44ki1ii#4R#kIi
Note� Multiple critical depths were found at this loca[ion. The critical depth with the lowest,
valid,
'!' enezgy was used.
Page 32
STVRAIN.rep
,�� CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 to Sunction RS: 69741
INPUT
Description:
Station Eleva[ion Data num= 35
Sta Elev Sta Elev Sta Elev Sta Elev Sta 81ev
+t+.:i.ii�:s..wwr.rt�:r.:.::<:::.w.rrRrrrww.:�rt+a.:w.�r�ri��a�tt�a�.x:�xwa��:a+
2009 4828.4 2106 4825 2148 4816.45 2200 4816.45 2215 4B19.45
2256 4825.65 2427 4824.75 2624 4823.85 2824 4824.25 3024 4823.65
31�1 4823.35 3194 4821.75 3227 4823.55 3426 4825.05 3521 4822.85
3608 4823.05 3629 4829.15 3675 4824.25 3689 4823.35 3710 4825.45
3826 4824.75 3864 4824.85 3916 4828.45 3931 4826.05 3949 4824.85
3955 4824.85 3963 4828.55 4025 4830.65 4227 4832.35 4427 4833.75
462� 4834.05 482� 4834.25 5027 4834.65 5227 4836.65 5227.1 4836.65
Manning's n Values num= 3
S[a n Val Sta n Val Sta n Val
.....:..«+..+.::.x....++..a.+..+......+a.:.x...+
2009 .07 2106 .04 2256 .07
Hank Sta: Left Right Lengths: Left Channel Right Coeff Con[r. Espan.
2106 2256 268.5 448 455 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
3270 522�.1 4843 F
CROSS SECTION OUTPUT Profile q100 year
+.+.�F�:Ft�::.�,:xrx..�+x++...�Fi++xtMs����xxxxrr++x.xwt��t�R:r:x:xx+Mr�w�at:�:xxwxrxix;r�+t4::
* E.G. Elev (fU ' 4828.11 * Element • Left OH • Channel • Right OB *
R Vel Head (ft) * 0.35 * Wt. n-Val. * 0.070 * 0.040 * 0.070 *
� w.S. Elev Ift) + 482�.�6 � Reach Len. (ft) * 268.50 " 448.00 " 455.00 *
* Crit W.S. If[I * 4826.14 * Flow Area (sq fU * 108.34 * 7243.71 � 3707.93 *
� • E.G. S1ope (f[/fU *0.001808 * Area (sq ft) * 108.34 ' 1243.71 * 5933.69 *
* Q Total (cfs) *16055.06 * Flow (cfs) * 721.05 • 7990.50 � �943.51 *
* Top Width (fU * 1919.54 * Top Width (fU * 78.63 � 150.00 } 1690.92 *
* Vel Total (ft/s) = 3.17 R Avg. Vel. (ft/s) * 1.12 * 6.42 * 2.14 *
� + Max Chl Dp[h (ft) * 11.31 * Hydr. Depth (ft) * 1.38 � 0.29 � 3.66 *
* Conv. Total (cfs) *377%5.0 * Conv. (cfs) • 2846.6 *187911.7 �186806.7 *
� Length wtd. (ft) * 450.22 R Wefted Per. (ft) • 78.67 " 151.62 * 1014.11 *
* Min Ch E1 (fU ' 4816.45 * Sheai (lb/sq ft) � 0.16 * 0.93 * 0.41 *
• Alpha * 2.2� * Stieam Power (lb/ft s) * 0.17 * 5.95 * 0.88 R
* Fict� Loss (f[) * 0.85 * Cum Volume (acre-ft) * 25.�8 * 94.0� • 371.08 rt
' C & E Loss (fU * 0.01 * Cum SA (acres) * 4.32 * 8.33 * 93.01 a
��+.+aiwittai�:i:x«..�t.+r�++at«t+t��+++tt.�r��i+�t.k��ti«�:..xr�+ttxi�ixwi.rr�rxxt+t�:.:xxrxrW
Warning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
enezgy was used.
CROSS SECTION OUTPUT Profile pbase+l target de
�.+xxwx.:++..:+.s..:...x....+...+..a...+.+..+«••..+.:.e+..:..+...+.....++.+:...:...<++..<.«..:.
* E.G. Elev (f[) * 4828.65 * Element * Left OH * Channel * Right OH '
� vel Head (ft) • 0.33 * Wt. n-Val. � 0.070 * 0.040 * 0.070 �
* W.S. Elev Ift) ` 4828.31 * Reach Len. (ft) * 268.50 * 448.00 * 455.00 *
* Crit W.5. (f[) a 4826.30 R Flow Azea (sq ft) * 156.66 * 1327.43 � 3554.68 *
* E.G. Slope (ft/ft) *0.001515 * Area (sq ft) * 156.66 * 1327.43 ' 3554.68 *
' Q To[al (cfs) =15�B9.56 + Flow (cfs) * 181.18 � 8152.84 * 7455.54 *
* Top width (f[) * 1118.55 • Top Width (ft) * 94.55 * 150.00 * 874.00 *
* Vel Total (ft/s) * 3.13 " Avg. Vel. (ft/s) * 1.16 * 6.14 � 2.10 *
* Max Chl Dpth (fU ' ll.eb • Hydr. Depth (ft) * 1.66 • 8.85 � 4.07 *
* Conv. Total (cfs) *405664.3 * Conv. (cfs) • 4654.8 �209462.3 *191547.2 *
* Length Wtd. (ft1 * 449.21 + Wetted Per. (ft) ' 94.61 R 151.62 * 878.89 *
t Min Ch E1 (ft) F 4816.45 k Shear (lb/sq ft) * 0.16 * 0.83 t 0.38 *
' Alpha k 2.20 • Stteam Power Qb/Et s) * 0.18 • 5.09 * 0.80 �
* Frctn Loss (fU * p.82 • Cum Vol�me (acre-ft) k 26.06 R 97.75 * 279.42 *
� C & E Loss (ft) � 0.07 � Cum SA (acres) * 4.46 * 8.34 * 57.01 �
«+«.......:.::.............«...:++..«.x.ww.x..+...::xx.:..�..:.*.-..x.x..e.+xx..w..+..+.....r.+.
i
Page 33
STVRAIN.zep
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
� � energy was used.
LATERAL STRUCTURE
RIVER: St. Vrain River
REACH: I-25 to JuncCian RS: 69359
INPUT
Description:
Lateral s[ructure position = Next ot left bank station
Distance from Upstream XS = 290
Deck/Roadway Widih = 25
Weir Coefficient = 2.63
Weir Flow Reference = Water Surface
Weir Embankmen[ Coordinates num = 4
Sta Elev Sta Elev S[a Elev Sta Elev
r:�ratai.x....:.+.xw.::.ti+i..:�+:t��.rw:r.:�irf�.t+i�xr:�t;��kx+:i �
3770 482'].5 3780 4826.5 3856 4826.5 3890 4827.5
Weir crest shape = Hroad Crested
LATERAL STRUCTUAE OUTPUT Profile #100 year Lat StruCt
xx+wr«�R.::::�fx:..F���x.+:t�r.xRat�tr.+ ::iitrr:::r+rxr<i+�iwx��i+�t+++t.+
* E.G. US. (ft) * 4827.55 ' Weir Sta US (ft) ` 3737.29 *
" W.S. US. (ft) ' 482�.17 " Weii Sta OS IfU * 3867.72 "
+ E.G. �S (£U ` 4827.20 " Weir Max Depih (ft) * 0.52 *
• W.S. DS (fU * 4826.79 * Weii Avg Depth (ft) * 0.36 R
* Q US (cfs) *16055.06 * Weir Submerg * �.00 '
+ Q Leaving Total (cfs) • '19.51 * Min E1 Weir Flow (ft) * 4826.50 ;
' Q DS (Cfs) *15974.41 • Wz Top Wdth (ft) ' 130.43
* Perc 4 Leaving ` 0.50 * 4 Gate Group (cfsl * *
* Q Weir (cfs) * 79.51 * Gate Open Ht (Et) * *
* Q Gates (cfs) * * Gate popen * '
,! • Q Culv (cfs) � • Gate Area (sq ft) ` +
� * Q Lat RC (cfsl * Gate Submerg *
+ Weir Flow Area (sq ft) ' 4�.Z4 ' Gate Inveit (fU *
ff:lk44#+I1�ii#lfttiilkt�4i#f1t4t#2RAiiFf'.l�iiiYFf�#YltR+#ilki##4tkk1#+Ff1k
Warning: The conveyance zatio (upstream conveyance divided by downstream conveyance) is less [han
0.7 or 9reater than 1.4. This may indicate ihe need for additional cross sections.
LATERAL STROCTQAE OUTPUT Profile #base+l target de Lat Struct
#f!**##Yii44YkAitfxitR4lSnIlkki'k1:1:lT11ftsiF'Rlift4S1RR#4fFRF1'R11:Rk44AfFFi#rt
* E.G. US. (ft) * 4828.07 * weir Sta vs (ft) * 3710.00 *
* W.S. US. (ft) ' 4827.59 " Weir Sta �S (fU • 3878.66 *
* E.G. DS (fU ' 4827.70 '�' Weir Max Depth (fL) • �.9Z �
* W.S. DS (fU * 4827.13 ' Weir Avg Depth (fU * 0.63 `
* p Us (cfsl *15'189.56 * Weir Submerg * 0.00 *
� Q Leaving Total (cfs) " 235.31 * Min E1 Weir Flow (ft) * 4826.50 *
+ Q DS (cfs) r15549.69 * Wr Top Wd[h (ft) 168.66
• Perc Q Leaving ' 1.52 k Q Gate Gmup (cfs) * *
* Q Weir (cfsl ' 235.31 " Gate Open Ht ([t)
" Q Gates (cfs) * * Gate #Open ` '
* Q Culv (cfs) * • Gate Area (sq 'ft) x Y
� Q Lat RC (cfs) ' • Gate Su6meig *
Weiz Flow Area (sq ft) * 105.91 * Gate Invert (fU
f�l4'.li4fi£TFt4iiffik1if411#Mt+�Y!#t411tiYYfti+#kI+#f+fi+4f1#i11:f#1lfif#4'.lfeT
Warning: The energy equation could not be 6alanced within the specified number oE iterations. The
program selected the water surface that had the least amount of erroz between computed and
assumed values.
Warning: The conveyance ratio (upstzeam conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Waming: During the standard step iterations, when the assumed water surface was set equal to critical
depth, the calculated water surface came back below critical depth. This indicates that there
is not a valid subcritical answer. The program defaulted to critical depth.
Warning: There is no flow in the channel. Check that the channel stations are correctly coded. To force
flow into the channel, a levee oi ineffective flow may have to be added or the Manning's n of
the overbank could be increased.
Page 34
STVRAIN.rep
. CROSS SECTION �
RIVER: St. Vrain River
REACH: I-25 to Junction RS: 69293
INPUT
Description:
Station Eleva[ion Data num= 20
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.t.+.*+.:+:a:..«...,..::::.x+..+:.:.�.<.....«+..t.:..:.e.+xxx......t+.+.:.:.....
2030.5 4827.2 2089 4824 2109 4815.6 2163 4815.7 2163 4818.2
2219 4820 2229 4825 3074 4823 3254 4823 3622 4825
3671 482� 3696 4829 3768 4829 3805 4827 3820 4825
3844 4825 3860 4829 3966 4831 4302 4831 4�9� 4833
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
.«+.x.x«+.....:t:....x...+........«.:::..xx....+
2030.5 .0� 2089 .04 2229 .0�
Bank Sta: Left Right Lengths: Left Channel Right Coeff Conir. E�cpan.
2069 2229 268.5 449 455 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
34�7 477] 4843 F
CROSS SECTION OUTP➢T Profile #100 year
4##i₹#k1Ff4hxAtKkiYilftittiixnxM#i!+#1!#Si1�4th%*f4#wk1#Ti#++i1f*f�*fM+Y++#iiifF�*#rti#iiYiithxx
• E.G. Elev (ft) � 4827.25 * Element * Left OB * Charuiel * Right OB •
� Vel Head (ft) • 0.40 * Wt. n-Val, w 0.070 rt 0.040 • 0.070 *
* W.S. EleV (f[) * 4826.84 * AeaCh Len. (fU ' 266.50 * 449.00 ' 455.00 •
i Crit W.S. (fU * 4825.63 * Flow Area (sq ft) * 73.94 ` 1222.48 * 3817.48 *
` E.G. Slope (ft/fU *0.001963 * Area (sq ft) * 73.94 ` 1222.48 * 4247.52 *
* Q Total (cfs) *15974.41 * Flow (cfs) � g7.86 R 8320.17 t 7566.38 •
• Top Width (ft) + 1675.39 ' Top widih (ft) * 51.99 * 140.00 R 1483.39 •
� + Vel Total (f[/s) j 3.12 � Avg. Vel. (ft/5) # 1.19 * 6.81 ` 1.98 y
* Max Chl Dp[h (fU 11.24 * Hydr. Depth (fU 1.42 8.73 3.06
' Conv. Total (cfs) '360510.1 * Conv. (cfs) • 1982.9 *187769.3 t170�5�.9 *
� * Lengih Wtd. Ift) * 451.07 * Wetted Per. (Et) � 52.07 ' 145.40 ' 1248.01 •
� * Min Ch E1 (ft) * 4815.60 * Shear (lb/sq ft) � 0.17 ' 1.03 ' 0.37 *
' Alpha * 2.66 * Stream Power (]b/EC s) • 0.21 * 7.07 � 0.74 *
• Frctn Loss (fU + �.92 * Cum Volume (acre-ft) * 25.22 " 81.39 * 317.91 *
* C 6 E Loss (ft) • 0.03 * Cum SA (acres) + 3.92 * 6.84 � 76.43 *
Yii;fx#f4+#44+fit;x;kfA+Mrt*�#Ytiii4Y##itixAiYk�itif#4iitfxtRxhi###�#hitFf}i1i#Y#4k4f�t;£k£FYih*♦
Warning: Divided £low compvted £or this cross-section.
Note: Mul[iple cri[ical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTION OUTPUT Profile #base*1 taYget de
+��+:t���xxxr.+«at+.:::.xwxww�+wa+a��x::.xxx�twrwai++�r+:itr�rrr�����:tx.rrri+++:�t�xrx.ye�+++a
* E.G. Elev (fU • 4627.�6 * Element * Left OB * Channel * Right OB *
* Vel Head (fU • 0.56 * Wt. n-Val. * 0.070 * 0.040 * 0.070 �
w W.5. Elev (fU * 4827.20 * Reach Len. (fU R 268.SU * 449.00 * 455.00 *
- * Crit W.S. (ft) + 4825.93 * Plow Area (sq ft) * 93.41 ' 1271.83 * 2701.28 *
* E.G. Slope (ft/ft) *0.002258 * Area (sq ft) * 93.41 * 1271.83 * 2701.28 *
* Q Total (cfs) •15551.99 * Flow (cfs) r 128.66 w 9530.29 * 5893.03 *
• Top Width (ft) * 1043.44 i Top Width (ft) < 58.44 * 140.00 • 845.00 *
' Vel Total (ft/S) • 3.82 ' Avg. Vel. (ft/s) * 1.38 * 7.49 R 2,18 *
� Max Chl Dpth (ft) * 11.60 * Hydr. ➢epth (ft) * 1.60 t 9.08 � 3.20 *
* Conv. Total (cfs) '327305.3 • Conv. (cfs) * 2707.9 t200573.3 *124024.0 •
* Length Wtd. (fi) � 450.23 * Wetted Per. (ft) ' 58.52 * 145.40 * 849.20 *
* Min Ch E1 (fU * 4815.60 * Sheai (lb/sq ft) * 0.22 * 1.23 • 0.45 *
* Alpha � 2.48 * Stream Power Qb/ft s) * 0.31 * 9.24 * 0.98 *
� Frctn Loss (fU * 1.08 * Cum Volume (acre-ft) ' 25.29 � 84.38 * 246 JS *
* C s E Loss (fU • 0.04 • Cum SA (acres) • 3.99 * 6.85 • 48.04 *
i4ifh*t##f#ki#4kRiixlak#F4+if41hRx4iM1i4t�ttt+Ifhli#4*x11R1tf##irt*4#fitfxx�Y#Yk�1111ii4+##4k11T
warning: The energy loss was greater than 1.0 ft 10.3 m) . between the wrrent and previous cross
section. This may indicate the need for additional cross sections.
i Note: Multiple critical depths were found at Lhis location. The critical dep[h with the lowest,
� valid,
Page 35
STVRAIN.rep
energy was used.
1
- CROSS SECTION
RIVER: St. VYain River
REACH: I-25 to Junction RS: 68844
INPUT
Description:
Station Elevation Data num= 28
SLa Elev Sta Elev Sta Elev Sta Elev Sta Elev
.+...+.+...x.......x.+...x..w.+..:.+.:+:.::..:..+w«+..:�...:...++.........:..x.:
2052 4826 2071 4823 2099 4814.75 2172 9814.85 2202 4823.05
2400 4823.45 2602 4822.35 2802 4822.55 2843 4822.75 3000 4823.25
3200 4821.75 3234 4822.25 3248 4821.25 3295 48�3.05 3402 4825.25
3601 4824.35 3656 402�.25 3674 4828.�5 3690 4823.65 3�06 4823.65
3732 4828.05 3756 4827.55 3801 4829.15 4001 4830.45 4200 4831.35
4401 4832.15 4601 4832.75 4802 4833.25
Manning's n Values num= 3
Sta n Val S[a n Val Sta n Val
.•x+:....++..a.+........+.......x......+.+.++++.
2052 .07 2071 .04 2202 .07
eank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Ezpan.
2071 2202 341.5 610 556 .1 .3
Blocked Obstzuctions num= 2
Sta L Sta R Elev Sta L Sta R Elev
x:t�iy+i+.�.iix....xx.wrxx.x:t::+��+r.r:�:x+:i+r
2316 2773 4819.9 2859 3523 4821.5�
CROSS SECTION OUTPUT Pmfile #100 year
##i#MA1+xflfF�xk44#itfYii4k+iF�#/1}Rt44#kt1#ifA%!l4+4Fi1+At!#ifi#44Mii1flf#lRi4fYY#1fRTti##₹#Y#
• E.G. Elev (fU ' 4826.29 * Element * Left OB ' Channel * Right OH •
* Vel Head (ft) ' 0.50 * Wt. n-Val. * 0.070 • 0.040 * 0.0�0 �
* W.S. EleV (ft) ' 4825.79 R Reach Len. (ft) * 341.50 • 610.00 * 556.00 •
I * Crit W.S. (ft) * • Flow Area (sq ft) + 24.62 * 1200.90 t 3780.08 *
. � * E.G. Slope 1f[/fU *0.002141 ' Area (sq ft) 24.62 * 1200.90 ^ 3780.OB
* Q Total (cfs) `15974.41 * Flow (c£s) ' 29.94 * 8936.97 k 700�.A *
' Tap Width (ft) ' 16ll.36 * Top Width (fU R 17.66 • 131.00 * 1462.70 *
+ Vel Total I£t/s) + 3.79 • Avg. Vel. (ft/s) � 1.22 " 7.44 * 1.85 *
* Max Chl Dpth (ft) * 11.04 * Hydr. �epth (fU ' 1.39 ^ 9.17 • 2.58 *
t Conv. To[al (cfs) +345262.3 • Conv. (cfs) * 647.0 *193158 J *151456.5 *
+ Length Wid. (ft) + 571.11 * wetted Per. (ft) * 17.88 * 133.29 * 1463.30 *
* Min Ch E1 (ft) ' 4814.75 ' Shear Qb/sq ft) * 0.18 ' 1.20 * 0.35 *
* Alpha ' 3.19 * Stream Power (lb/f[ s) • 0.22 * 8.96 • 0.64 *
* Frctn Loss (£U * 1.18 * Cum Volume (acre-fU * 24.92 • 68.90 * 275.98 *
* C s E Loss (ft) * 0.02 * Cum SA (acres) * 3.70 * 5.44 * 61.04 *
iRkY+£1iflt1i+Y1%ixlkxtxk1k414AfAR1t#4#i+xif!!#++#Y#£i++i4YY1f1kI##+#iikf11fR41+111fIf4Y#h4#iiY
Warning: Divided flow compnted for this cross-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the curren[ and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile qbase«1 target de
.r..wx.:t+++rx....+t..+�+....w:t+�<....x�x.�a....x+.t.+.�+++....iw�«++�......�..+....r..+e..+.+
* E.G. Elev (ft) " 4826.63 * Element " Left OB * CLannel * Right OB *
* Vel xead (ft) * 0.71 ` Wt. n-Val. * 0.070 * o.040 * 0.070 *
* W.S. Elev (fU ' 4825.92 * Reach Len. (ft) ' 341.50 * 610.00 • 556.00 *
* Crit W.5. (ft) R ' Flow Area (sq ft) # 27.06 * 1218.56 • 2427.86 *
• E.G. Slope (ft/ft) R0.002572 * Area (sq ft) ` 27.06 * 1218.56 * 2427.86 *
* Q Total (cfs) "15549.69 R Flow (cfs) " 37.21 *10036.98 * 5475.49 +
* Top Width (f[) • 947.51 R Top Width (ft) ' 18.51 * 131.00 * 798.00
• Vel Total (ft/s) * 4.23 * Avg. Vel. (ft/s) • 1.38 * 8.24 * 2.26 �
• Max Chl Dpth (ft) * 11.17 R Nydr. Depth (fU + 1.46 ` 9.30 � 3.04 +
* Conv. Total (cfs) '306617.0 * Conv. (cfs) * 733.8 *197914.5 `107968.6
* Length W[d. (£t) ' 572.61 • Wetted Per. (ft� * 18.74 � 133.29 t 800.68 *
* Min Ch E1 (fU ' 4814.�5 * Shear (lb/sq ft) ' 0.23 * 1.47 0.49
� Alpha ' 2.54 � Stream Power (lb/ft s) ' 0.32 * 12.09 • 1.10 �
* Frctn Loss (£t) " 1.18 " Cum Volume (acre-ft) • 24.92 • 71.55 • 219.96 *
• C 6 E Loss (fU • 0.09 * Cum SA (acres) ' 3.75 * 5.45 * 39.45 *
•RF1Y#hiFtfiAhRxRttw#Yh+lRtff#*#xlx�#4iIiA#li4M441R1R�4ifif1i1�411YwR4!#kYkMR41fi*MRx#YYffxMRki
Page 36
STVRAIN.rep
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the cuzrent and previovs cross
' section. This may �indicate the need for additional cross sections.
CROSS SECTION
RIVER: St. Vrain River
REACH: I-25 Co JunCtion RS: 68234
INPUT
Description:
Station Elevation Data num= 16
Sta Elev S[a Elev Sta Elev Sta Elev S[a Elev
++.a......+...a...+......+....a«+++,....+..+.«.......:x:+xx�x+xx.x..+.....++.�+.
1000 4829 1035 4820 1184 4820 1196 4814 12"/2 4814
1285 4820 2242 4823 2586 4823 2760 4825 2785 4827
2802 4825 2827 4825 2873 4829 3324 4831 3553 4833
4674 4833
Manning's n Values num= 3
S[a n Val Sta n Val Sta n Val
..+.......:....«.......xx:xx.xx....x.xxx:x...x.x
1000 .0] 1184 .04 1285 .07
Bank Sta: Left Right Lengths: Left Channel Righ[ Coe£f Contr. Erzpan.
1184 1285 341.5 610 556 .1 .3
CROSS SECTION OUTPUT Profile #100 year
tk'RkFtYrtt+fff;£}F#%FAfhiiiY4i1+4#4itkSiitttYittFnif+k#i*ii�.ttFR11:F'.!4#fi#iYiYilf###M#1:tk+#+R#!Rl1I
* E.G. Elev (ftl * 4825.09 * Element • Left OB � Channel * Right OB *
* Vel Head (ft) * 0.45 * Wt. n-Val. t 0.070 "' 0.040 * 0.070 *
* W.S. Elev (fU " 4824.64 * Reach Len. (ft) * 341.50 R 670.00 * 556.00 •
* Crit W.S. (ft) * ' Flow Area (sq ft) * 733.82 R 1000.00 * 3691.27 *
* E.G. Slope (f[/ft) "'0.002009 * Area (sq ft) • 733.82 * 1000.00 '� 3691.27 *
+ Q Total (cfs) R15974.41 � Flow (cfs) * 1868.07 * 7541.03 * 6565.32 *
* Top Width (ftl * 7712.05 � Top Width (ft) * 767.06 • 101.00 * 1443.99 *
� R Vel Total (ft/s) * 2.94 * Avg. Vel. (ft/s) * 2.55 * 7.54 * 1.70 *
` Max Chl Dpth (fU 10.64 * Nydr. Depth (ft) 4.39 9.90 * 2.56
� • Conv. Tota1 (cfs) "356435.3 E Conv. (cfs) • 41682.0 x168262.1 *146491.1 *
* Length Wtd. (fU * 557.73 r wetted Per. (ft) � 167.65 * 103.73 * 1444.00 *
* Min Ch E1 (ft) R 4814.00 * Shear (lb/sq £C) � 0.55 * 1.21 * 0.32 *
* Alpha * 3.3? * Stream Power (lb/ft s) � 1.40 • 9.12 t 0.57 +
* Frc[n Loss (ft) +• 1.72 " Cum Volume �acre-ft) • 21.94 • 53.49 * 226.30 *
* C & E Loss (ft) * 0.03 '�' Cum SA (acies) * 2.98 * 3.82 • 42.49 �
+wxiat.a��:x:+x++w+++�a+�:���:..�a:.:t.:::x++w::.w.r,r:R:..w.�r,v��ta:+.�is:xxxxxxx�xrwxaxxrM+�+�
Warning: The energy loss was greater than 1.0 ft f0.3 m) . between the current and pzevious cross
sec[ion. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Profile $base+l taiget de
x+:x:.x:.w�xyF+:.:..:::.x+wrxixxxxxrr�»rrr+e�a«+F+�iw��r��t�t�+:::�::::e�.�xt.ewt�+eii*i+���:w.
" E.G. Elev (ft) * 4825.36 * Element R Left OB * Channel ' Right OB *
�' Vel Head (ft) * 0.40 * Wt. n-Val. * 0.070 * 0.040 * 0.0�0 *
" W.S. Elev (fU • 4824.97 * ReaCh Len. (£[) * 341.50 * 610.00 t 556.00 *
* Crit W.5. (fU * * Flow Area (sq ft) * 78"].96 ' 1032.55 t 3122.74 *
* E.G. Slope (ft/fU *0.001675 • Area (sq fU * 787.86 R 1032.55 • 3122.79 *
* Q Total (cfs) *15549.69 " Flow (cfs) • 1910.�8 * 7264.86 • 6374.04 �
4 Top Width (ft) • 1134.31 t Top Width (ft) • 168.31 * 101.00 * 865.00 t
* Vel Total (ft/5) � 3.15 ' Avg. Vel. (ft�s) " 2.43 * 7.04 • 2.04 *
* Max Chl Dpth (ft) t 10.97 * Hydr. Depth (f[) * 4.68 * 10.22 * 3.61 *
R Conv. Total (cfs) *379896.2 � Conv. (cfs) � 46682.5 +177488.7 *155725.0 *
* Lengih Wtd. (ft) * 556.78 * Wetted Per. (ft) * 168.94 * 103.73 * 867.26 *
• Min Ch E1 (ft) � 4814.o0 • Shear (lb/sq fU + 0.49 � 1.04 * 0.38 *
* Alpha * 2.58 • Stream Power (lb/ft s) * 1.18 ^ 7.33 * 0.77 *
* Frctn Loss (ft) * 1.03 • Cum Volume (acre-f[) • 21.73 * 55.79 * 184.54 *
� C & E Loss (fU * 0.00 • Cnm SA (acres) * 3.02 * 3.83 * 28.84 *
#n#44iT�1#4kY#**h#i#+�.!*lhf+hhM*44I�4FA+fii###4i+#4+#iFll�fff�1h11:11111#i#YikitAkkllRfYli#*'kf�lh1144
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between Che current and previous cross
section. This may indica�e the need for additional cross sections.
CROSS SECTION
)
Page 37
STVRAIN.rep
RIVER: St. Vrain River
I REACH: I-25 Co Junction RS: 67624
INPUT
Description:
Station Elevation Data num= 50
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.«+:..:..:r...xx.....+..++:..:x:...:....+..:..+.:.::..x....».a�.a....rx:.+...�..r
2528 4825.8 2597 4817.4 2640 4816.5 2651 4816.5 2678 4814.85
2696 4813.45 2742 4813.45 2769 4824.95 2794 4824.25 �816 4824.25
2842 4820.95 301'1 4020.35 3083 4821.45 3117 4820.05 3218 4820.05
3417 4920.05 3507 4820.05 3527 4820.45 3619 4821.65 3817 4819.85
3918 4821.25 3990 4818.55 4017 4819.05 4169 4824.45 4193 4828.65
4213 4823.15 4226 4823.15 4243 4826.75 4419 4829.25 4608 4829.25
4616 4820.35 4623 4829.25 4816 4B29.45 5017 4830.35 5172 4931.85
5198 4831.85 5206 4829.35 5217 4831.25 5223 4830.55 5230 4832.15
5250 4829.25 5418 4830.05 5532 4831.25 5541 4830.55 5549 4831.25
5620 4831.35 SB18 4831.55 6020 4831.95 6221 4931.95 6356 4832.75
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
.t+++..:::,...+.....+:.=x+..a.+.++.:t�+.+...+..*
2528 .07 2651 .04 2�69 .07
Hank Sta: Left Right Lengths: Left Channel Aight Coeff Contr. E�cpan.
2651 2769 684 810 815 .1 .3
Blocked obstructions num= 1
Sta L Sta R Elev
♦*4#'Rilfhfi#ki'ftlFik4k##
3099 4069 4820.03
CAOSS SECTION OUTPUT Profile #100 year
•r:.t�r�ari�.:t�i�rr:��x��t+y+�:�+vrr++:air.tiirr,�.+ri3ttt��x:�rr+wR��++ia:��earxr,:�+�+t++t+++riri
* E.G. Elev (ft) � 4823.94 * Element * Left OB * Channel � Right OB •
• Vel Head (ft) � 0.34 * Wt. n-Val. • 0.0�0 * 0.040 * 0-070 •
• W.S. Elev (ftl ' 4823.60 * Reach Len. (ft) � 684.00 * 810.00 • 815.00 *
• Crit W.5. (ft) � * Flow Area (sq ft) * 521.85 * 971.80 * 3991.53 `
� * E.G. Slope (ft/ft) '0.002006 ` Psea (sq ft) * 521.85 * 971.80 * 3991.53 *
� * Q Total (cfs) *15974.41 ' Flow (cfs) • 1442.19 * 6631.67 * 7900.55 *
* Top Width (ft) * 1560.42 • Top Width (fU * 104.92 114.83 * 1340.67
F vel Total (ft/sl ' 2.91 * Avg. vel. (ft/s) � 2.76 * 6.82 * 1.98 *
' Max Chl �pth (fU * 10.i5 * Nydr. �epth (ft) • 4.97 ` 8.46 ' 2.98 *
� Conv. Total (cfs) k356638 J * Conv. (cfs) * 3219'7.8 *148056.2 *7763B4.7 *
* Length Wtd. (fU * 801.67 * Wetted Per. (ft) + 105.31 Y 117.00 * 1341.10 *
* Min Ch E1 (ft) • 4013.45 * Shear (Ib/sq ft) 0.62 1.04 " 0.37
• Alpha * 2.59 * Stream Power Ub/ft sl ' 1.72 e 7.30 ' OJ4 +
' Prctn Loss (ft) " 1.44 • Cum Volume (acre-ft) * 17.02 39.68 • 1'J9.27 S
* C & E Loss (fU ` 0.03 • Cum SA (acres) • 1.91 t 2.30 • 24.72
#f4Y'Rf'.lf+#11f'.lR1�t#nf*1:Ritif!*f4i1!##4l1f}tttf*4Y144f1Yffi:411f1tii11fith'klY4�4fifeR+##ht#Y4Rf1S1♦
Warning: �ivided flow computed for this cross-section.
Warning: The energy loss was 9reater than 1.0 ft (0.3 ml . 6etween the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTZON 011TPUT Profile #base+l target de
4i14lfii#YfftlTklYlkiYiif4!!iilllflfi*4flflfkltl�:lif�M4Yf1Rt44S1f##i*hi4+flfiYtl*k#i1liilt111#t
• E.G. Elev (fU * 4824.33 * Element * Left OB • Channel * Right OB *
+ Vel Head (ft1 * 0.40 • Wt. n-Val. * 0.070 * 0.040 + 0.070 �
* W.5. Elev (ft) * 4823.93 * Reach Len. (ft) i 684.00 * 810.00 815.00 i
* Crit W.S. (ft) * + Flow Area (sq ft) * 556.72 * 1009.60 * 3143.01 *
+ E.G. Slope (ft/fU *0.002067 * Area (sq ft) • 556.72 * 1009.60 * 3143.01
* Q Total (cfs) *15549.69 • Plow (cfs) ` 1603.19 R 7139.99 * 6806.51 �*
* Tap Width Ift) ' 1154.67 3 Top Width (ft) 10'1.62 e 115.60 931.46 *
* Vel Total (ft/s) � 3.30 * Av9. Vel. (ft/s) * 2.88 7.07 i 2.17 `
* Max Chl Dpth (ft) * 10.48 * Hydr. Depth (ft) * 5.17 * 8.73 � 3.37
* Conv. Total (cfs) '341987.6 ' Conv. (cfs) ' 35259.3 •157031.3 *149697.0 *
+ Leng[h Wtd. (ft) * 799 J9 ' Wetted Per. (£t) ' 108.02 * 117.84 ' 935.17 *
• Min Ch E1 (Et) * 4813.45 • Sheaz (lb/sq ft) �" 0.67 * 1.11 * 0.43 *
+ Alpha * 2.37 � Stream Powec Qb/ft s) ` 1.92 • 7.82 * 0.94 �
" Frctn Loss (ft) � 1.45 R Cum Volume (acre-fU * 16.46 • 41.49 w 144.55 .
* C 6 E Loss (ft) * 0.04 * Cum SA (acres) * 1.94 * 2.31 • 17.38
#Y!kl++hlfe*#ilii##k#A#1f1fi1fh#ItY}i1FY:11:�!#f1f*#'k1R*#fY111#1h##1kYli'Fflitfl#*k114kI4lf1*Rf#f<fWk
/ Warning: Divided Elow computed for this Cro55-section. .
Page 30
STVRAIN.rep
Warning: The energy loss was greater than 1.0 ft (o.3 m) . between ihe current and previous cross �
' section. This may indicate the need for additional cross sec[ions.
LATERAL STRUCTURE
AIVER: St. Viain River
REACA� I-25 Co Junction R5: 6748�
INPUT
Description: This is the last locatio� where water overCops the berm and spills
into the lakes.
Lateral structure position = Next ot left bank station
Distance from Opstream XS = 50
Deck/Roadway Wid[h = 39
WeiY CoeffiCient = 2.63
WEii Flow AefeYenCe = Water SuifaCe
Weir Embankment Coordinates num = 4 .
Sta Elev Sta Elev S[a Elev Sta Elev
1lMfR+lR+hftFYIMYiY+ftiltlll;irt#*kkliii#4if+4k!####f##1'��#1#F4#t'.F
5602 4824.1 %B6 4824 6150 4823.8 6217 4823.5 �
Weir crest shape = Broad Czested
LATERAL STRUCTURE OUTPUT PLofile p100 year Lat S[Iuct
aa.:t.:.�+Fi:.::..+x+«xFa�+t:+:.:x.r:xx+ •++i���xwx.x+xr:�t��:F:��tRt..rx
* E.G. US. (ft1 * 4823.85 * WeiY Sta US (ft) * k
* W.S. US. (fU * 4823.52 * Weir Sta DS (ft) � t
i E.G. DS (fU * 4822."]3 * weir Max Depth (ft) � *
* W.S. DS (f[) • 4822.48 R Weir Avg Depth (ft) * +
* Q US (cfs) •15974.41 * Weir Submeig * +
• Q Leaving Total (cfs) ' 0.00 * Min E1 Weir Flow (ft) * 4823.50 *
t Q DS (cfs) *15974.91 * Wr Top Wdth (ft) � �
• Perc 4 Leaving F o.00 + Q Gate Group (cfs) + +
* Q Weir (cfs) • * Gate Open Nt (ft) < *
� � Q Gates (cfs) �* * Gate NOpen � +
k Q Culv (cfs) " Gate Area (sq ft)
� � Q Lat RC (cfs) * * Gate Submerg * *
* weir Elow Area (sq ft) • * Gate Invert (fU + *
f+�f��AMnf#xtkff�a#tY+YYitFi44itt4fff/if�.lf�.l1`RY:iii##14#4t4�tY11iY#4xiY4kl+k
Warning: The conveyance ratio (upstream conveyance divided by downs[ream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
LATERAL STRUCTURE Ol/TPUT Profile pbase+l target de Lat Struct
++::::.......::.:.�:.+..+.....:+:::...:.:<.w:+:w.+..+.....,:...:.a:.a....
• E.G. U5. (fU * 4824.24 + Weir Sta US (ft) � *
" W.S. US. (ft) � 4823.84 • Weii Sta DS (ft) * +
* E.G. DS (fU + 4823.11 ` Weir Max Dep[h (ft) * �
* W.S. 05 (ft) � 4822.01 * Weir Avg Depth (ft) + �
' Q US (cfs) <15549.69 * Weir Submerg * �
* Q Leaving Total (cfs) * 0.00 * Min E1 Weir Plow (ft) * 4823.50 �
" Q DS (Cfs) R15549.69 ' Wi Top Wdth (ft) * +
' Perc Q Leaving * 0.00 � Q Gate Group (cfs) • �
• Q Weir (cfs) * * Gate Open Ht (ft) * +
* Q Gates (c£s) • + Gate #Open + �
* Q Culv (cfs) � � Gate Area (sq fU • +
+ Q Lat RC (cfs) * * Gate Submerg * �
* Weir Plow Area (sq ft) * * Gate Invert (ft) * *
.+xx+:::�.s....�.:.t....+...:..+.:�.�x:x..�:*+..k++++++...w....s.:x:axx....+
warning: The energy equation could no[ be balanced within the specified number of iterationa. The
program selected the water surface tha[ had the least amount of error between computed and
assumed values.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is leas than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: �uring the standard step iterationa, when [he assumed water surface was set equal to critical
depih, the calculated water surface came back below critical depth. This indicates tha[ there
is not a valid subcritical answer. The program defaulted to critical depth.
Warning: There is no flow in the channel. Check that the channel stations are correctly coded. To force
flow into the channel, a levee or ineffective flow may have to be added or the Manning�s n of
� the overbank could be increased.
Page 39
STVRAIN.rep
CROSS SECTION
RIVER: S[. Vrain RiveZ
REACH: I-25 to Junction RS: 66814
INPllT
�escrip[ion:
Station Elevation �a[a num= 50
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
.+..xx+x„x:.,...+...+.....x+x:....:a.:.......:.....a..........+.:«..++«......�.
2402 4822.3 2423 4819 2541 4816 2561 4815.55 2582 4012.85
2604 4812.85 2629 4812.85 2658 4815.85 2674 4820.55 2689 4821.45
2697 4815.45 2719 4814.35 2765 4B16.25 2807 4817.25 2835 4819.85
2917 4820.05 3120 4818.95 3188 4819.55 3221 4818."/S 3318 4818.65
3521 4818.35 3785 4818.25 3921 4821.05 3983 4823.65 4120 4824.85
4321 4829.95 4374 4826.55 4384 4820.95 4404 4820.95 4421 4826.25
4432 4824.75 4523 9824.75 4722 4824.95 4804 4825.05 4825 4824.25
4841 482'].35 4881 4826.75 4925 482"/.05 5123 4828.55 5258 4828.85
5272 4830.05 5282 4827.35 5296 4829.35 53?1 4829.35 5334 482].35
5348 4828.35 5523 4829.25 5721 4829.45 5920 4830.45 612� 4830.05
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
•i+wRt.:��i«YRir=+=.:�t;rrrr,F===:t.+++.wxr:r=+ar
2402 .0"/ 2541 .04 2674 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
2541 2674 1040 1079 1040 .1 .3 .
Blocked Obs[ructians num= 1
Sta L SCa R Elev
+s+�xr��++�+aai�a.x:.s+t
2402 2402 4825
CROSS SECTION OUTPUT Profile N100 year
+....+x..::+.+x..x.:,...t:.r.«....w.�.......:...t........:.+k++.+.....,.+..+.+...r:...«•..:�xw.x..
• E.G. Elev IfU * 4822.4� * Element * Left OB * Channel w Right OB {
� * Vel Head (ft) ` 0.24 ' Wt. n-Val. � 0.070 * 0.040 ' 0.070 `
* W.5. Elev (ft) * 4822.24 � Reach Len. (ft) 965.00 965.00 * 965.00
" Crit W.S. (fU ' " Flow Axea (sq ft) ' 592.08 ' 1032.30 * 4448.62 `
� E.G. SlOpe (ft/£t) *0.001612 ' Alea (sq ft) * 592.08 * 1032.30 ` 4448.62 "
* Q Total (cfs) *159"14.41 • Flow (cfs) ` 1326.90 * 6006.07 * B641.44 *
k Top Width (ft) • 1573.28 * Top Width (ft) ' 138.59 * 113.00 • 1301.69 *
� Vel Total (f[/s) • 2.63 ' Avg. Vel. (ft/s) • 2.24 * 5.82 * 1.94 R
�' Max Chl Dpth (ft) • 9.39 * Hydr. Oepth (f[) • 4.27 * 7.96 ' 3.42 '
* Conv. Total (cfs) *39"/822.7 * Conv. (cfs) • 33044.7 *149573.7 "215204.2 t
* Length wtd. (fU * 965.00 * Wetted Per. (ft) * 738.88 * 134.01 � 1304.51 •
� Min Ch E1 (ft) + 4812.85 • Shear Qb/sq fU ` 0.43 * 0.78 * 0.34 �
• Alpha • 2.19 * Stzeam Power (lb/ft s) * 0.96 * 4.51 � 0.67 *
* Frctn Loss (fU * 2.�2 * Cum Volume (acre-fU * 8.28 " 21.05 * 100.31 *
� C 5 E Loss (fU ` 0.01 * Cum SA (acres) • ' ` `
..+..+..::....::...:....x.:::+..w::....+.::.:::x:.:.a...::x.:......«.::...:..w.::::.....:....::
Warning: nivided flow computed for this ctoss-section.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previovs cross
section. This may indicate the need for additional cross sections.
CROSS SECTION OUTPUT Pro£ile pbase+l tazget de
##I!lFf4iY+'I1#k4i*#YIFi#1+111:hf411ltt:tSlffRR4Y#11:Ff+#YfI##**#14iR�.l11S41ff11fe�'F4+411!#*#R�1i1Sh•
• E.G. Elev Ift) * 4822.84 * Element * Left OB * Channel * Right OB t
* Vel Head (ft) * 0.27 * Wt. n-val. * 0.070 • 0.040 * 0.07o *
* W.S. Elev (ft) • 4822.57 R Reach Len. (ft) * 965.00 * 965.0� • 965.00 t
* Crit W.S. (ft) * ' Flow Area (sq ft) * 638.56 * 1076.78 * 3629.33 R
* E.G. Slope (ft/fU *0.001602 * Area (sq fU * 638.56 * 1076.78 • 3629.33 *
+ Q Total (cfs) •15549.69 * Flow (cfs) * 1495.42 * 6423.60 * 7630.67
* Top Width (ft) * 1198.00 • Top Wid[h (ft) ` 139.00 * 133.00 * 926.00 *
* Vel Total (ft/s) * 2.91 • Avg. Vel. (ft/s) ` 2.34 * 5.97 ' 2.10 '
* Max Chl Dp[h (ft) ' 9.72 * Hydc. Depth (ft) * 4.59 * 6.10 " 3.92 *
+ Conv. Total (cfs) *388451.6 ' Conv. (cfs) ' 3735'l.5 `160469.9 "190624.1 i
* Length Wtd. (ft) • 965.00 ' Wetted Per. (ft) { 139-57 + 134.01 " 932.49 *
* Min Ch E1 (fU * 4812.85 * Shear Qb/sq fU 0.46 • 0.80 t 0.39
* Alpha " 2.06 * Stream Power (lb/ft s) * 1.07 i 4.80 ' 0.82 *
� Frctn Loss (ft) ' 1.95 * Cum Volume (acre-ft) • 7.0� 22.09 " 91.20
� • C S E Loss (fU " 0.01 * Cum SA (acies) * ' ' �
Page 40
STVRAIN.rep
1iYxYii4#1l1f+llxittfAh#fii#fY#f+k}M�i�Yi4i1t1!{*#IAw1}f111ilf11Yi*k#1RA1AxiW�i#xYfRh�*�kt##4i4 �
I
� warning: The energy loss was greater than 1.0 f[ (0.3 m) . between [he wrrent and previous cross
section. This may indicate the need for addi[ional cross sections.
CAOSS SECTION
RIVER: St. Vrai� River
REACH: FULL RIVER RS: 65735
INPUT
Description:
Station Elevation Da[a num= 44
Sta Elev S[a Elev Sta E1ev Sta Elev Sta Elev
�+...+.:......_>.....++<+.......:...+....:..+:..+:.......:::.�.:.....+..........
2097 4821.8 2122 4819 2161 4813.5 2185 4813 2200 4811.95
2252 4811.95 2281 4816.75 2342 4816.55 2417 4B15.65 2502 4815.85
2522 4817.35 2539 4816.95 2740 4816.85 2903 4816.65 2926 4812.55
2945 4812.55 2974 4816.25 3140 4816.85 3339 4817.65 3538 4818.55 �
3�41 4818.85 3880 4819.85 3887 4819.05 3892 4819.85 3912 4819.85
3949 4818.85 3964 4819.65 4112 4822.65 41�3 4823.45 4229 4826.05
4243 4820.05 4251 4820.05 4275 4826.05 4321 4824.55 4359 4824.95
4502 4826.55 4556 4826.55 4756 4826.55 4956 4826.95 5156 4827.55
5229 4828.35 5246 4829.15 5253 4826.45 5264 4829.25
Manning�s n values num= 3
Sta n Val Sta n Val Sta n Val
•+�e��xwr+�rt+�x::.:xrx«i<tt��xRxxxxw+++++t��xxr
2097 .07 2161 .04 2281 .07
eank Sta: Lef[ Right Lengths: Left Channel Right Coeff Contr. Ezpan.
2161 2281 95 1135 1025 .1 .3
CROSS SECTION OUTPUT PTofile #100 yeaY
hfi%#YkFiif�111+tk#14Ftxfxflittil�*1t1AA11i4#Yk+RlFkAx1fR11xiit}#+kif#k#4R+t#4*#h*Mf#1f1fh##�ik4
� * E.G. Elev (ft) + 4820.45 * Element * Left OB * Channel * Right OB +
" Vel Head (ft) 0.36 ' Wt. n-Val. 0.070 0.040 0.070
� * W.S. Elev (ft) • 4820.09 * Reach Len. (fU * 95.00 � 1135.00 * 1025.00 *
' Crit W.S. (ft) * * Flow Area (sq ft) ' 155.01 � 867.97 * 4607.39 *
. * E.G. Slope (ft/ft) *0.002�74 * Area (sq ft) * 155.01 � 867.97 � 4607.39 *
* Q Total (cfs) *16700.00 * Flow (cfs) * 3�2.62 t 6336.38 * 9991.01 *
* Top Width (ft) + 1881.63 * Top Width (ft) * 48 J2 * 120.00 * 1712.90 *
" Vel Total (ft/s) * 2.97 * pvg. Vel. (ft/s) * 2.40 * 7.30 * 2.11 *
* Max Chl Dpth (fU * 8.14 * Hydr. Oepth (ft) ' 3.18 * 7.23 ' 2.69 *
* Conv. Total (cfs) *317066.6 * Conv. (cfs) * 7074.5 k120302.6 *189689.5 •
� Length Wtd. (ft) • 1043.56 * Wet[ed Per. (ft) * 49.17 * 120.44 � 1713.�4 *
* Min Ch E1 (fU + 4811.95 * Shear (lb/sq ft) * 0.55 � 1.25 � 0.47 *
* Alpha a 2.63 * Stream Power (lb/ft s) * 1.31 • 9.11 3 1.01 *
* Fstn Loss (ft) * 2.29 • Cum Volume (acre-ft) * 696.41 k 339.52 R 891.08 R
* C fi E Loss (ft) * 0.07 * Cum SA (aCies) * 221.29 * 43.17 * 277.85 *
itll*11YY#+#f1##1ti*1###ifxf#I#1#4ik4f1xlAxiiF+iR4xl4fRkYl�fMh*Y*1#M<R11kT�fiFk�1x1x1i44#kf/111
Warning: Divided £low computed foz ihis cross-section.
Warning: The energy loss was greater than 1.o ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTZON OUTPUT PrOfile �base+l CaZge[ de
f*f*f#FY5i#iii#AfMi111iitii�#!i4#i*#k1fF�iii#4**#!x#Sf�lftllii�fl*�A1[If***1t11144*+#44*#lf4kk#
* E.G. Elev (fU * 4820.87 * Element * Left OH * Channel * Righ[ OH *
* Vel Head (ft) � 0.37 * Wt. n-Val. * * 0.040 * 0.070 *
* w.S. Elev (ft) + 4820.50 � Reach Len. (ft) a 95.00 • 1135.00 * 1025.00 *
* Crit W.S. (ft) • * Flow Area (sq ft) * • 917.37 * 3700.96 *
* E.G. Slope (ft/ft� *0.002589 • Area (sq ft) * * 917.37 + 3700.96 *
* Q Total (cfs) •16700.00 • Flow (cfs) * • 6464.26 �10235.74 *
* Top Width (ft) � 1019.00 * Top Width (ft) * * 120.00 i 899.00 *
* Vel Total (f[/s) * 3.62 * Avg. Vel. (ft/s) * * 7.05 * 2.77 *
* Max Chl Dpth (ft) * 8.55 * Hydr. Depth (ft) * + 7.64 * 4.12 *
* Conv. Total (Cfs) *328228.3 � Conv. (cfs) * •127051.1 '201177.2 *
* Length Wtd. (ft) * 1056.28 * Wetted Per. (ft) � * 127.44 � 903.16 *
� Min Ch E1 (ft) * 4811.95 * Shear (lb/sq Et) * * 1.16 * 0.66 �
* Alpha * 1.83 • Stream Power (lb/ft s) � * 8.20 * 1.83 *
� Frctn Loss (fU * 2.34 r Cum Volume (acre-ft) * 587.94 • 362.32 � 477.44 *
) • C & E Loss (ft) ' 0.06 • Cum SA (acies) * 144.4� * 43.36 * 107.63 *
Page 41
S'PJRAIN.rep .
1'.l4i*1ffAF#fkkYF#MY1:1!{kifittF}#kfAiftk'.11titiklki�.l11#R#t+itktl;hll#11Yilkf*i#ififlfilfYR44Y�T4t#
� Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and pzevious cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: SC. Vrain River
REACH: FULL RIVER RS: 64600
INPUT
DescLiption: .
Station EleVatiOn Data num= 56
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
:..+:.�.++.....«:.....«...:�x.....«.....«.«.+.:.+..::.++�:..........++.:.......:
1200 4829.3 1200.1 4829.3 1243 4826 1266 4824.6 1324 4822.6
� 1370 4821.3 1399 4820.2 1483 4816 1500 4810.85 1525 4810.85
1549 4810.85 1560 4811 1604 4813.95 1626 4814.05 1684 4814.55
1735 4814.95 1749 4814.85 1832 4814.15 2030 4814.65 2118 4814.55
2131 4812.85 2140 4814.35 215'/ 4812.25 2171 4814.35 2232 4814.55
2432 4814.55 2584 4813.85 2614 4811.55 2628 4811.05 2698 4811.05 ,
2720 4812.55 2761 4014.25 2829 4814.75 3029 4814.25 3188 4814.35
3247 4819.55 3429 4819.25 3629 4819.55 3804 4819.95 3812 4822.45
3820 4820.05 3828 4821.25 3855 4021.25 3867 4820.45 3878 4821.45
4029 4822.45 4091 4822.25 9108 4823.55 4125 4818.85 4135 4818.85
4157 4823.35 4231 4822.85 4430 4823.25 4631 4823.65 4739 4823.85
4760 4826.45
� Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val �
i4R}tkillf#+kY11h+++feR#!f'Fihkik/�'Rf4f4I'.l�t+klR#iY
1200 .07 1483 .04 1560 .07
eank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
1483 1560 393.5 480 405 .1 .3
� eR0&3*SE„{�N*OUTPUT Profile #100 year
.w�x:+xa:ir+x..+Fx«,r+xai+xr++�rx�+�wx«+rrx+{y.��it*+x�3�+x����+r::�+��..+Ri«.::
� * E.G. Elev (ftl * 4818.09 * Element * Left OB * Channel * Right OH +
' Vel Head (ft) * 0.14 * Wt. n-Val. * 0.070 ` 0.040 * 0.070 '
� W.S. Elev (ft) ' 4817.95 ' Reach Len. (fU * 393.50 480.00 405.00
� Crit W.S. lft) ` ' Flow Area (sq ft) * 38.05 * 502.15 � 6366.67 *
� E.G. Slope (ft/fU *0.001785 * Area (sq ft) µ 38.05 * 502.15 " 6366.67 i
* p Total (cfs) '16700.00 • Flow (cfs) 33.53 * 2732.57 *13933.91
R Top Width (ft) * 1784.8"! • Top Width (f[) ' 39.01 * �7.00 ^ 1668.86 *
• Ve1 Total (ft/s) * 2.42 • Avg. Vel. (ft/s) * 0.88 * 5.44 * 2.19 *
• Max Chl Dpth (ft) ` '1.10 R Hydr. Depth (ft) 0.98 6.52 3.81 ;
• Conv. Total (cfs) '395317.8 * Conv. (cfs) * 793.7 • 64684.5 *329839.6 *
* Length Wtd. (ft) * 417.89 ' wetted Per. (fU � 39.06 R 7�.76 R 1669.83 «
• Min Ch E1 (ft) ' 4810.85 • Shear (lb/sq ft) 0.11 * 0.72 e 0.42 *
* Alpha * 1.51 • Stream Power (lb/£t s) * 0.10 * 3.91 0.93 *
* Frctn Loss (fU * 0.80 • Cum Volume (acre-ft) 696.20 321.67 + 761.9�
+ C 6 E Loss (fU ' 0.00 * Cum SA (acres) • 221.19 * 40.61 238.06 +
•�ix:t+ar.xw+xx.+*x.�+�xx.+xrr,w+x.::++r,++r�k++ii+.�Rx+i�wxi+�*:ttR.�«.�xx.�w�++*+�:.tt+��.�a�ar:
CROSS SECTION OIITPUT PYofile $basehl target de
•.��i�xx+t�+r++x+x+:rw:a+�+e:�r+�+tw�:�+a�rR.+++xr;�+wxt+w�x+x�x++eri:.��+�.:�rr:iri+*
**E;GYyElev (ft) ' 4818.4'J • Element ' Left OB • Channel + RighC OB y
� Vel Head (ft) * 0.17 • Wt. n-Val. ' i 0.040 * 0.070
� W.S. Elev (ft) ' 4818.30 • Reach Len. (ft) ' 393.50 480.00 405.0�
• Crit W.S. (ft) ' * Flow Area (sq ft) ' * 528.84 * 5573.64 ;
+ E.G. Slope (ft/ftl `0.001924 + Area (5q ft) * * 528.84 * 5573.64 *
+ Q Total (cfs) '16700.00 ' Flow (c£s) * ` 3033.86 *13666.14 }
• Top Width IfU ` 13�7.00 * Top Width (ft) * 77.Oa * 1300.00 *
* Vel Total (ft/s) * 2.74 * Avg. Vel. (ft/s) * * `'.�4 * Z'45 *
* Max Chl Dp[h (ft) • 7.45 * Nydr. Depth (ft) * 6.8� 4'Z9 ;
� Conv. Total (c£s) *3B0699.9 " Conv. (Cfs) * 69161.1 *311538.9 *
+ Length Wtd. (ft) ` 419.14 * Wetted Per. (ft) * * 80.06 * 1304.44 t
• Min Ch E1 (ft) * 4810.85 * Shear (lb/sq ft) 0.79 0.51 x
t Alpha * 1.46 * S[ream Power Qb/ft s) * * 4.55 * 1.26 x
* Frctn Loss (ft) ' 0.86 ' Cum Volume (acre-ft) 587.94 * 343.48 368.32 *
• C & E Loss (ft) � 0.00 � Cum SA (acres) • 144.47 40.80 * 81.75
' ♦#tt+MMt4i*�+1Af#ii�+11fR:'4Y'.l4YYTkRY�t411*14lftii/�.lfRtt#il+i£ii##4ktY#i#4##4if4iI11lMY1AtY11:/t
Page 42
STVRAIN.rep
i CROSS SECTION
RIVER: St. Vrain 2iver
REACN: FULL RIVER RS: 64120
INPUT
�escription: This is an in[erpolated cross-sectio� between XS 6460o and XS
63640.
Station Elevation Data num= 96
S[a Elev Sta Elev Sta Elev Sta Elev Sta Elev
::ixwa�:.i:.:..rxrx��xxr:>r.�xr,��x:.::t�we�+++a+«�.a.xx.i�x�x�rirx�xxrrr.xx+,Rw�+tx♦
1195 4824.8 1195.07 4824.8 1195.17 4924.79 1211.5 4823.52 1225.84 4622.33
1242.34 4821.15 1252.76 4820.6 1263.95 4019.44 1316.94 4618.35 1328.68 4817.89
1337.75 4817.55 1361.69 4816.4"1 1398 4814.5 1416.5 4810.2 1442.78 4810.2
1468 4810.2 1480.5 4811.48 1516.5 4812.73 1521.12 4812.77 1527.4 4812.62 -
1541.43 4813 1541.58 4813 1594.97 4613.89 1596.12 4813.9 1621.21 4814.51
1642.05 4814.56 1654.98 4814.46 16]2.48 4814.37 1731.6 4814.1 1781.56 4814.17
183"/.19 4813.49 1888.46 4813.51 1914.39 4813.57 1995.62 4813.57 2007.62 4812.73
2015.93 4813.49 2031.63 4812.45 2044.55 4813.51 2100.86 4813.65 2105.52 4813.65
2200.42 4813.55 2285.5 4813.62 2322.59 4813.56 2425.82 4813.14 2453.51 4811.94
2466.44 4811.67 2531.06 4811.57 2542.93 4811.99 2551.37 4812.32 2589.22 4813.28
2631.29 4813.57 2649.83 4812.99 2651.99 4813 26'10.55 4812.97 2689.1 4813.55
2763.27 4813.35 2836.62 4813_25 2919.25 4813.28 2944.34 4812.19 2967.25 4812.19
2978.16 4812.2 2983.41 4812.37 3015.24 4814.92 3037.87 4816 3198.5 4815.86
3205.89 4815.52 3232.31 4814.37 3280.31 4815.71 3390.52 4816.12 3417.75 4816.23
3552.07 4816.71 3559.46 481"1.98 3566.84 4816.79 3574.23 4817.41 3599.15 4817.47
3610.23 4817.09 3620.39 4017.62 3634.81 4817.7 3727.53 4819.23 3759.78 4819.53
3877.02 4819.76 3832.71 4820.5 3848.41 4818.24 3850.79 4818.25 3857.64 4818.26
387'].95 4820.54 3946.26 4820.38 4066.7"/ 4820.68 4129.97 4820.75 4289.29 4820.92
4315.53 4821 43'/3.28 4821.16 4409.28 4823.19 4415.23 4823.26 4423.46 4823.75
4442 4824.65
Manning'5 n Values num= 3
Sta n Val Sta n Val Sta n Val
� #4tlitf[Y1#k4ii4t�iktiRt'.lFfliR4i4kfR+#iFF1+{+#t#
1195 .07 1398 .04 1?80.5 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
1398 14H0.5 393.5 480 405 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
3752 4442 4817.5 F
CROSS SECTION OUTPUT PTofile #100 year
....:......<,.:::::::.:.t:...::....,x:..».w.:+«.+w..+.++x.+..w.+::w:w...x:wx+x..xx..x:...xw.:»+
* E.G. Elev (ft� • 4817.28 � Element " Left OB � Channel * Right OB �
+ Vel Head (ft) * 0.16 * Wt. n-Val. * 0.070 * 0.040 * 0.070 *
• W.S. Elev (ft) � 4817.12 R ReaCh Len. (ft) * 393.50 ' 490.00 ' 405.00 *
• Crit W.S_ (fU * 4815.32 * Flow Asea (sq ft) * 64.25 * 523.44 * 6001.98 *
' E.G. Slope (ft/ft) �0.002075 * Area (sq ft) • 64.25 • 523.44 • 6476.50 * .
* Q Total (cfs� �16700.00 * Flow (cfs) * 72.58 * 30�1.83 '13605.60 '
+ Top Width �£t) * 2214.99 * Top Width (ft) * 50.81 * 82.50 • 2081.68 *
* Vel Total (f[/s) ^ 2.53 * Avg. Vel. (ft/s) * 1.13 * 5.77 * 2.27 *
"' Max Chl Dpth (ft) • 6.92 * Hydr. Depth (ft) * 1.26 * 6.34 • 3.59 *
' Conv. Total (cfs) *366643.0 ' Conv. (cfs) * 1593.4 * 66343.2 *298706.4 *
* Length Wtd. (ft) • 418.37 * Wetted Per. (f[) * 50.88 R 83.06 * 1671.92 *
* Min Ch E1 (ft) * 4H10.20 i Shear (lb/sq ft) * 0.16 t 0.82 * 0.46 *
* Alpha • 1.59 ` Stream Power Qb/ft s) ' 0.18 ` 4.71 • 1.05 *
* Frctn Loss (ft) • 0.84 * Cum Volume (acre-fU * 695.74 * 316.02 � 702.26 •
+ C & E Loss (fU * 0.01 • Cum SA (acres) * 220.79 * 39.73 • 220.63 *
.+.+..«....:.:a.xwx+k.wx.+.....w+.+......w...w.wxxxw.........x..a.+w+..+..+..+......+.+...�x�xx
Wazning: Divided flow computed for this cross-section.
Note: Multiple critical depths were found at this location. The critical depth with ihe lowest,
valid,
water surface was used.
CAOSS SECTION OUTPUT Pcofile #baseal target de
iW4-.F#YYf#fiY4ik+#;i4#k;A�lvl44AfR1:14Ri4RW11i4f14A'R#Yf+f�.Y1fR�.lA1#14f##f#�ki4ifi44#Y+*##iYltR1k44fY44
* E.G. Elev (ft) i 4817.61 + Element * Lef[ OB * Channel * Right 08 *
,� • Vel Head (ftl t 0.19 + Wt. n-Val. * * 0.040 ; 0.070 *
. + w.S. Elev (ft) * 4817.42 * Reach Len. (ft) ' 393.50 480.00 405.00
Page 43
STVRAIN.rep
• Crit W_S. (fU * 4815.54 * Flow Area (sq ft) " � 548.06 * 5351.11 ;
� E.G. Slope Ift/ft) *0.002173 * Area (sq fU * * 548.06 * 5351.11 *
� � Q Total Icfs) '16700.00 ' Flow (cfs) * * 3262.96 �13437.04
* Top width (ft) ' 1402.00 * Top width (ft) * • 82.50 * 1319.50 *
* Vel Total (ft/s) * 2.83 * Avg. Vel. (ft/s) * * 5.95 * 2.51
* Max Chl Dpth (ft) * �.22 ' Hydr. Depth (ft) * • 6.64 ' 4.06 *
t Conv. Total (cfs) *358219.0 * Conv. (cfs) • * 69991.2 *288227.8
" Length Wtd. (fU * 419.95 * Wetted Per. (fU * * 85.98 * 1323.89 *
� Min Ch E1 (ft) " 4810.20 '" Shear (lb/sq ft) ' " 0.86 • 0.55
� Alpha * 1.50 ' Stream Power (lb/ft s) ' • 5.15 * 1.38 '
* Frctn Loss (ft) * 0.97 " Cum Volume (acre-fU * 587.94 � 337.54 * 317.53 *
• C 4 E Loss (ft) ' 0.00 � Cum SA (acres) ' 144.47 i 39.92 * 69.SB *
t#i-.!i%kk4#+iik#+1if:Ftf41#h*%#FFtiiiAtti4##fl:fsilf'J1tt1#if�f#kiAlfRf*I:#i1AF4#4Y11:R£Fti1k1R1fefifM
Note: Multiple critiwl depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION � .
RIVER: St. Viain River
REACH: FULL RIVER AS: 63640
INPUT
Description:
Station Elevation Data num= 46
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
fi'.ltR+#41Yih#4k#*ilMktt##h#si4}#*'.l1:'.l4ffRfYYi�ht#>ift4Yih�1iS1Yrt1#k+#iLitFi4i11hi#i
1190 4820.3 1190.1 4820.3 1200 4819.5 1225 4817.1 1271 4815.1
1291 4814.4 1313 4813 1333 4809.55 1387 4809.55 1401 4811.95
1434 4811.85 1444 4811.25 1457 4811.95 1507 4813.25 1530 4819.25
1577 4814.05 1677 4814.�5 1728 4812.55 1775 4812.45 1974 4812.75
2061 4812.55 2173 4812.75 2375 4812.05 2456 4812.55 2473 4811.25
2492 4811.25 2509 4812.45 2577 4812.25 2720 4812.25 2743 4810.05
2764 4810.05 2774 4810.05 2808 4812.45 2976 4812.45 3007 4809.45
3051 4812.05 377"/ 4812.85 3376 4813.85 3461 4816.25 3574 4817.65
rf� 3772 4818.25 3976 4818.25 4053 4818.55 4086 4822.55 4099 4822.85
� 4116 4822.85
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
FYi11f;4fiff'.!k#1##1tli+iflti#+RRii#ifil+Atti#11A
1190 .07 1313 .04 1401 .07
Bank Sta: Left Right Lengths: Lef[ Channel Right CoeEf Contr. Expan.
1313 1401 490 462.5 415 .3 .5
Ineffective Plow num= 1
Sta L S[a R Elev Permanent
2992 9116 4817.5 F
CROSS SECTION OI7TPUT Profile #100 year
4+1irt1*44-.!'Rfft1'R#}i14�.lfi+441####S4fif1�fY111fi1iS1fIY1:li41fiiii141�i1k4#Y11R1kff11iF
•*E*G*MElev*1ft) * 4816.44 * Element * Left OB * Channel * Right oB *
+ Vel Nead (fU * o.ls * wt. n-Val. * 0.070 * 0.040 ` o.o70 *
* W.S. BleV (ft) * 4816.29 � AeaCh Len. (ft) * 490.00 • 462-50 415.00
* Ciit W.S. lft) * 4814.45 ' Flow Area (sq ft) • 104.03 ^ 541.79 ' 6011.79 *
� E.G. Slope (Pt/fU *0.001934 " Area (sq ft) : 104.U3 541.79 • 7521.39 i
• Q Total (cfs) �16700.00 * Plow (cfs) 127.14 ' 2961.76 *13611.10
• Top Width (ft) ` 2220.55 * Top Width (ft) * 69.36 ` 88.00 * 2063.19 *
• Vel Total (ft/s) * 2.A * Avg. Vel. (ft/s) * 1.22 5.47 2.26 *
+ Max Chl Dpth (ft) * 6.04 k Hydr. �epth (fU * 1.50 " 6.16 * 3.78
* Conv. Total (c£s) "3�9777.8 ' Conv. (cfs) " 2891.4 * 67353.9 *309532.4 *
* Length Wtd. (ft) ' 422 J4 * Wetted Per. (ft) * 69.44 * 88.50 ` 1591.46 R
* Min Ch E1 (ft) ' 4809.55 * Shear (lb/sq ft) 0.18 ` 0.74 � 0.46 *
* Alpha . * 1.51 " Stream Power (lb/ft s) * o.22 k 4.04 + 1.03
• Frctn Loss (fU * 0.54 * Cum Volume (acre-fU 694.98 310.15 637.19 *
* C & E Loss (fU * 0.04 w Cum SA (acres) ' 22�.24 " 38.79 + 201.36 �
i4fAf!#iii�Yii1�.lA:!#i#�.t#iflkiYRkMift�.!#%1hlh�li+itR##1:Rfi+IF�41Rk1Y1##Y1:f#1R1f*fiI#if!!i'Ff141!#ffR
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greatez than 1.4. This may indicate the need for additional cross sections.
Warning: The cross section had to 6e extended veitically duzing ihe critical depth calculations.
f Note: Multiple critical depths were found at this location. The critical dep[h with the lowest,
Page 44
STVRAIN.rep
valid,
. water surface was used.
CROSS SECTION OUTPUT PrOfile #base+l CaZget de
xxxx++xr+tak..�K.t..�..:r:x.+a�t♦;+..�t++��i�+++.+w.�i.*....r�+..wxxx.i��.�::ax*�.+a.x.w+.::at.
* E.G. Elev (fU * 4816.63 * Element * Left 0H * Channel * Aight OB `
* Vel Nead (ft) E 0.20 * Wt. n-Val. + + 0.040 * 0.070 *
* w.5. Elev (ft) • 4816.43 * Reach Len. (fU � 490.00 * 462.50 + 415.00 *
* Crit W.S. (fU * 4814 J3 * Flow Area (sq ft) • * 554.00 ` 5158.93 *
* E.G. Slope (ft/ft) *0.002484 * Area (sq ft) * * 554.00 * 5158.93 *
* Q Total (cfs) •16700.00 * Flow (cfs) * * 3396.65 *13303.35 i
* Top Width (ft) � 1437.00 * Top Width (ft) • * 88.00 * 1349.00 `
* Vel Total (ft/s) 3 2.92 * Avg. Vel. (ft/s) � * 6.13 • 2.58 *
k Max Chl Dpth (fU • 6.88 • Hydr. Dep[h (Yt) * a 6.30 ' 3.82 *
* Conv. Total (cfs) '335079.1 * Conv. (Cfs) * * 68152.4 *266926.7 R
* Length Wtd. (fU " 423.03 * Wetted Per. (ft) * + 91.93 ' 1355.68 *
` Min Ch E1 (ft) E 4809.55 • Shear (lb/sq fU • * 0.93 � 0.59 k
* Alpha * 7.51 � • Stream Powez (lb/ft s) � • 5.73 * 1.52 *
* Frctn Loss (ft) * 0.% * Cum Volume (acre-ft) ' 587.94 * 331.47 R 268.67 *
* C & E Loss (ft) ' 0.0� * Cum SA (acres) * 144.47 * 38.98 ' 57.17 *
wRr�++«+ix.«x+r�iFFiixx��.r��.���+��.���xw.�+tw��++kr�vrx*a��r�:r:��a+�+x+�xR�rr.rKarY:3R:�+++
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.� or greater than 1.4. This may indicate the need for additional cross sections.
Note: Mul[iple critical depths were found at [his location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RZVER: St. Vrain River
REACH: FQLL RNER RS: 63177.5
INPUT
�escription: This is an interpolated cross-section between XS 63640 and XS
� 62715.
Sta[ion Eleva[ion Data num= 86
� Sta Elev Sta Elev Sta Elev Sta Elev Sta EleV
.k+:w.�++r�i:+:...E:it::x+:::.:.e.x++rt+t«tx���r�ii�++tt:av«+:+::.zi.Rxxxx+:+R.
1158 4820.65 1158.14 4828.64 1171.7 4827.64 1205.95 4824.92 1236.74 4823.06
- 1268.96 4820.3� 1296.36 4818.17 1310.�5 4876.87 1326.5 4815.13 1348.5 4807.57
1375.5 4807.6� 1405.43 4809.45 1418 4812.12 1452.59 9812.44 1461.6 4812.42
1474.81 4812.12 1491.99 4812.48 1558.04 4813.12 1588.43 4813.62 1650.53 4813.52
1689.9 4813.52 1782.65 4813.25 1850.03 4812.3 1912.12 4812.07 2026.96 4811.79
2156.48 4813.86 2175.04 4813.53 2223.24 4812.58 2280.36 4807.28 2289.98 4807.27
243�.95 4809.38 2547.43 480�.23 2596.51 4812.42 2613.4 4812.89 2639.53 4809.86
26B7.41 4808.55 269�.06 4808.46 2701.08 4808.46 2704.83 4808.47 2717.17 4808.58
2�35.6� 4809.57 2�53.3� 4817.14 2796.81 4815.49 2811.84 4814.49 2834.3 4812.29
2859.41 4810.55 2881.8� 4809.6 2883.69 4809.47 2952.07 4808.9 2964.13 4808.88
29�1.�1 4008.88 3006.77 4808.88 3160.63 4808.88 3165.24 4008.71 3191.02 4807.]�
3218.77 480�.�7 3231.98 4807.77 3296.9 4808.98 3326.94 4B08.98 3498.86 4808.98
3539.81 4807.48 359�.94 4808.77 3764.41 4809.17 3935.9 4809.5 3989.8 4817.6
4027.33 4817.32 4042.89 4817.34 40�5.07 4816.83 4139.63 4B18.17 4211.02 4819.21
4288.92 4819.11 4291.46 4819.1 4322.03 4820.09 4332.49 4817.6 4341.34 481�.61
4357.43 4820.18 4452.35 4820.64 4550.51 4820.75 4612.43 482U.75 4774.93 4820.25
4820.04 4820.26 4921.77 4820.45 4935.82 4821.09 4965.36 4822.49 4982.54 4822.67
5005 4822.7
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
.ex.....x.+..i.+t+.k�...++..+.:..+.++.+..+�...�w
1158 .07 1326.5 .04 1418 .07
Bank Sta: Left Right Leng[hs: Left Channel Right Coeff Contz. Expan.
1326.5 1418 490 462.5 415 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
3079 5005 4817.5 F
CROSS SECTION OUTPUT Profile #100 year
lfif##4#t#t#ilit�hi44F+#FFk#ilMw#t4a1�xf4R14X1li*litflf!lMYik1lf!}iWttlllMlfiifR11114#1#1W#4###
y • E.G. Elev (fU * 4815.86 � Element • Left OB t Channel W Righ[ OB *
p * Vel Head (ft) � 0.08 * Wt. n-Val. * 0.070 * 0.040 * 0.0�0 *
Page 45
STVRAIN.rep
• W.S. Elev (fU ^ 4815.79 * Reach Len. (ft) w 490.00 * 462.50 • 415.00 '
* Crit W.S. (ft) ' 4811.01 ` Flow Area (sq ft) * 1.96 * 595.00 * 7969.65 *
� ^ E.G. Slope (ft/f[) *0.000898 * Area (sq ft) � 1.96 • 595.00 *14061 JS "
* Q Total (cfs) •i6�00.00 � Flow (cfs) * 0.59 * 2282.04 *14417.3� *
* Top Wid[h (fU * 2657.21 * Top Width (ft) * 5.96 ' 91.50 * 2559.75 *
� Vel Total (ft/s) ' 7.95 ' Avg. Vel. (ft/s) * 0.30 * 3.84 R 1.81 *
* Max Chl Dpth (fU + 8.56 t Hydr. �epth (fU * 0.33 • 6.50 ' 4.80 *
• Conv. To[al (cfs) {557185.9 " Conv. (cfs) * 19.8 * 76138.8 •481027.3 *
^ Length Wtd. (ft) ' 422.10 * Wetted Per. (ft) * 6.00 * 93.�6 R 1662.33 *
* Min Ch E1 (ft) * 4807.67 * Shear (lb/sq ft) ' 0.02 * 0.36 � 0.27 *
* Alpha * 1.2� * Stream Power (lb/ft s) * 0.01 * 1.38 ' 0.49 *
* Prctn Loss (fU * 0.40 * Cum Volume (acre-fU * 694.39 � 304.11 � 534.38 *
• C & E Loss ($) ' 0.00 • Cum SA (aCYes) • 219.82 ' 37.84 * ll9.34 *
#hlRllfAxAkxxRxAtlfffttff4t14li#�IiF1#4i+FWii1if11!!It#k}*1#i#i1F4f11kRii4lt*h1lif#4#4ftlF44i#♦
Note: Multiple critical depths were found at [his location. The critical depth with the lowest,
valid,
watez surface was used.
CROSS SECTION OUTPUT Profile #base+l target de
«tit+a+aa+�++y+xi�riv.:..:w:�:i:+t+*a�*i+*��wRxxrRw:++t:s+�iii�.�r..�ia:wa�.i.r:�aty.�xx�r�xx*
* E.G. Elev (ft) � * 4816.00 * Element � Left OB � Channel * Righ[ OH *
* Vel Head (ft) ' 0.07 • Wt. n-Val. * * 0.040 • 0.070 *
* W.S. Elev (ftl ' 4615.93 * Reach Len. (fU * 490.00 � 462.50 • 415.00 *
R Cxit W.S. (fU • 4811.00 ` FlOw AYea (sq ft) • ' 608.13 * 8208.30 *
� E.G. Slope Ift/fU •0.0�0022 * Area (sq ft) � * 6�8.13 ^ 8206.30 *
* Q Total (Cfs) •16700.00 * Flow (cfs) ' * 2251.98 *14448.52 *
* Top Width (ft) * 1752.50 * Tap Width (ft) ' ' 91.50 * 1661.00 R
* Vel Total (ft/s) ' 1.89 ' Avg. Vel. (ft/s) ' � 3 JO * 1.76 +
* Max Chl Dpth (ftl � 8.70 ' Hydr. Depth (ft) • * 6.65 * 4.94 *
' Conv. Total (cfs) k582337.9 ' Conv. (cEs� * * 78510.3 *503827 J *
* Leng[h Wtd. fft) * 421.97 * Wetted Per. (ft) ' * 93.87 • 1669.38 *
* Min Ch E1 (Pt) * 480�.67 * Shear (lb/sq ft) " � 0.33 * 0.25 *
� Alpha ' 1.26 ' Stream Power (lb/ft s) ' * 1.23 * 0.44 `
* Frctn Loss (ft) * 0.36 * Cum Volume (acre-ft) ` 587.94 " 325.30 � 205.00 *
* C & E Loss (fU * 0.00 * Cum SA (acres) • 144.47 t 38.03 * 42.83
+x+++;k+:ta+rer.�+x:.:.ta�rw+w+�+:��+�:s+�+.xw��att+;rxwr�t*ti+i��rRx+a+a++�;+r�rx+::+++.x�r+r+�
�� Note: Multiple ¢itical depths were £ound at this location. The critical depth wi[h the lowest,
valid,
water surface was used.
CROSS SECTION
AIVER: St. Vrain River ��
REACH: FULL RIVER RS: 62715
INPUT
Description: This cross-section assumed the 'main channel 6ank stations' were
located at the first (upstream) intersection with the river. The
channel downstream zeach length was then assumed to follow the
dog-le9 portion of the river, whereas the left and right overbank
lengths were just the distance to the next cross-section over-land.
Statiort Elevation Da[a num= 45
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
rr:x�kt���:r��:x..+::.+�x�++t+t::ax*x+*+:�:�+�M+:txx+:x::�w:.+i�w�*a+x+:�;M:�i�x
1126 4837 1226 4830 1320 4820 1340 4817.27 1364 4805.8
1414 4807.65 1435 4812.3 1478 4813 1773 4813 2192 4811
2353 4815 2436 4812.5 250� 4802 2839 4802 2900 4812.5
2921 4813.5 2951 4807.5 3013 4805 3025 4804.85 3030 4804.85
3050 4805.05 3073 4806.95 3095 4830 3149 4818.5 3257 4006.5
3342 4805.5 3357 4805.5 3410 4805.5 3607 4805.5 3808 4805.5
4565 4805.5 9632 4821.5 4696 4820.5 4738 4818.8 4907 4821.5
5007 4820.55 5045 4822.45 5058 4817.45 5069 4817.45 5089 4822.55
5207 4823.25 5406 4823.25 5608 4822.25 5808 4822.35 5894 4822.55
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
R*1ix4#hMh4MkhYYxAitAlif1tM44Ax#lsi�4�Ttt�rtWxRx!
1126 .07 1340 .04 1435 .0�
Hank Sta: Left Right Lengths: Left Channel Right Coeff Contr- Expan.
� 1340 1435 100 3520 100 .3 .5
Page 46
STVRAIN.rep
Zneffective Flow num= 1 �
Sta L Sta R Elev Permanent
� 3112 5894 4617.5 F
Blocked Obstructions num= 2
Sta L Sta R Elev S[a L Sta R Elev
s+.+w�.....+..:+..«...:.,.xx»r...+...�..xx:..:..
2436 2900 4808 325� 4632 4808.5
CROSS SECTION OUTPUT Piofile �100 yeaY
+.xrxw+K�+:xx..Hx....::.rwrv�ar:++�::xr��xi+�+r:t+*++�tr�xr�r+��k�irwrrWy+r�i���.�x+f+t+ir��+++
* E.G. Elev (ft) * 4815.46 * Element * Left OB * Channel R Aight OB *
* Vel Head (£t) * 0.09 * Wt. n-Val. _ • 0.040 ' 0.070 t
> W.S. Elev (ft) * 4815.37 * ReaCh Len. (£t) • 100.00 • 3520.00 * 100.00 *
* Crit W.5. (ft) * 4810.54 * Flow Area (sq fU � * + 641.% t 7623.43 *
* E.G. Slope (ft/£t) *0.000994 * ATea (sq ft) ' • 641.56 '171�4.61 *
a Q Total (cfs) •16700.00 * Flow (cfs) * w 2708.83 t13991.17 '
* Top Width (ft) t 3214.35 * Top Width (fU ' * 91.03 ' 3123.32 *
* Vel Total (ft/s) * 2.02 * Avg. Vel. (ft/s) * * 4.22 • 1.g9 �
• Max Chl Dpth (fU ` 10.52 * Hydr. Depth (fU * * 7.05 r 4.55 *
* Conv. Total (Cfs) *529639.1 " Conv. (Cfs) * * 85910.4 *443728.] *
* Length Wtd. (ft) * 1000.62 * Wetted Per. (£U � • 93.74 * 1678.98 *
' Min Ch ffi (fU * 4805.80 * SheaY (lb/Sq fU • 0.42 * 0.28 *
* Alpha • 1.40 * Stream Power (lb/ft S) ' � 1.79 • 0.52 *
� Frctn Loss (ft) * 0.94 * Cum Volume (acre-fU * 694.37 � 297.55 � 385.58 *
* C & E Loss (ft) * 0.02 * Cum SA (acres) + 219.79 • 36.8� * 152.26 �
i#ikif#4xFx1YfY#ilifttffY�#kf#ik#x11i14iYk*NMif1}ih##Ii4+f4**1f*M4i#Y##ifflh4xRlki#W##1#4f+14+4
Warning: Divided flow computed for this cross-section.
No[e: Multiple critical depths were found at this location. The czitical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Piofile #baSe+7 CaYget de
:.x.+......:......«w..:::.x.x....:...:..x.:.+x+«+....::x::..«.+++.+.+x......++.:a.+.:.:«.:.•x:.
* E.G. Elev (ft) • 4815.64 * Element * Left OB * Channel R Right OB �
* Vel Head (ft) t 0.08 * Wt. n-Val. * * 0.040 � 0.070 *
� W.S. Elev (ft) F 4815.56 * Reach Len. (ft) t 100.00 * 3520.00 � 100.00 *
� a * Crit W.S. (ft) + 4870.55 R Plow Area (sq ft) * i 658.62 * 7937.05 •
* E.G. Slope (ft/ft) *0.000878 � " Area (sq fU • + 658.62 � 7937.05 •
. * Q Total (cfs) '16700.00 * Flow (cfs) + • 2651.72 •14048.20 '
. * Top Width (ftl • 1768.42 + Top Width (ft) • * 91.42 � 167�.00 *
* Vel Total (ft/s) * 1.94 * Avg. Vel. (ft/s) • * 4.03 • 7.77 +
* Max Chl Dp[h (ft) • 10.71 * Aydr. Depth (f[) * * 7.2p . g,73 .
* Conv. Total (cfs) '563501.4 * Conv. (cfs) k * 89475.8 *4�4025.6 *
* Length Wtd. (ft) R 961.91 � wetted Per. (ft) • * 94.18 * 1681.87 *
* Min Ch E1 (ft) * 4805.80 * Shear (lb/sq ft) * + 0.38 * 0.26 a
* Alpha * 1.38 • Stream Power (lb/ft s) * � 1.54 i 0.46 "
* FrCtn Loss (fU * 0.76 * Cum Volume laCre-ft) * 587.94 * 318.58 * 128.09 *
* C & E Loss (ft) * 0.01 * Cum SA (acres) * 144.4� * 3�.05 R 26.93 t
+f#�;x#tt#ii#4i:k+#+4Y+<<FK*#kx[44+ii#4�*t#M*h�tli4iftt+RFx+rMMi+f*Mk1+1##tAf#1x1x#44t�F11t1fff
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Viain River
REACH: FULL RIVER RS: 59195
INPUT
Description: This cross-section assumed the 'main channel bank stationa� were
loca[ed at the last (downstream) intersection wi[h the river.
Station Elevation Data num= 43
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
..kt++�k.w�.++�..�.x....�+�•.......R.+x••:::.x..+.:.+��+�Rt:::r.a.x��t.r..•�«..
1705 4847 1214 4828 1272 4821 1299 4830 1344 4809
1402 4812 2118 4811 22�8 4810 2296 4815 2365 4815
2443 4805.5 2814 4805.5 2859 4805.5 2896 4813.5 2911 4813.5
2970 4803.33 3026 4803.46 3056 4806 3069 4610 3095 4817.12
3130 481�.5 3191 4805.5 4583 4805.5 4625 4819.5 4715 4818.5
4747 4817.5 47�6 4818.5 4936 4821.5 5007 4820.36 5045 4822.26
5058 481�.26 5069 4817.26 5089 4822.36 5207 4823.06 5406 4823.06
Page 47
STVRAIN.rep
5608 4822.06 5808 4822.16 5994 4822.36 5902 4B21.56 5915 4822.36
, . 60a9 4822.06 6211 4821.86 6362 4821.56
Manning's n values num= 3
Sta n Val Sta n Val Sta n Val
..�+.++....w...:+.............+.++....�.++«.....
1105 .0"1 2911 .04 3069 .0'1
Bank Sta: Left Right Lengths: Left Channel kight Coeff Conir. Espan.
2911 3069 530 680 520 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev PeYmanent
3069 6362 481"1.5 F �
Blocked Obstructions num= 2
Sta L Sta R Elev Sta L Sta R Elev
•wxxx�+:«�+�aFFt��riiiiiww.r�xx�;t:+a.++��r:r:wxxx
2300 2900 9808 3191 6000 4808.5
CROSS SECTZON OUTPUT Profile �F100 year
R#+ifF#'R#+WM/it�Miitt44*iR1441#M#f1}ikkF4YfYAi'R1+��fttfillYhtAffll+�F#4iiYfAlfliif4lflkR#Yk1i41}
* E.G. Elev (ft) ' 4814.50 � Element * Left OB * Channel • Right oB *
k Vel Head (fU ` 0.15 * Wt. n-Val. ' 0.070 * 0.040 * *
* W.S. Elev (ftl * 4814.36 * Reach Len. (ft) * 530.00 * 68U.00 * 520.00 *
* Crit W.S. (ft) • 4811.14 ' Flow Area (sq ft) ' 6283.64 t 1336.12 * •
* E.G. Slope (f[/ft) ^0.000885 * Area (sq ft) * 6283.64 * 1336.12 • 8493.23 *
* Q Total (cfs) `16�00.�0 * Flow (cfs) *10613.27 * 6086.73 " *
* Top Width (fU * 3183.64 i Top Width (ft) * 1546.12 * 158.00 ' 1479.52 *
+ Vel Total (ft/s) ' 2.19 � Avg. Vel. (ft/s) ' 1.69 * 4.56 * "
* Max Chl Dpth (fU � ll.�3 * Hyds. Depth (fU * 4.06 * 8.46 * '
• Conv. Total (cfs) `561511.8 " Conv. (cfs) '356854.8 *204657.0 * '
+ Length Wtd. (fU * 587.04 ` Wetted Per. (ftl ' 1548.63 * 159.58 * *
* Min Ch E1 (ft) ` 4803.33 * Shear (lh/sq fi) * 0.22 * 0.46 * *
* Alpha * 1.95 ' Stieam Power (lb/ft s) ' 0.38 * 2.11 * •
* Frctn Loss (fU ` 0.34 • Cum Volume (acre-ft) • 687.16 * 217.64 * 356.12 *
* C & E Loss (ft) • 0.03 * Cum SA (acres) * 218.01 • 26.81 • 146.98 *
Fxtif'Rfi1:'Iitt+ii+ii4#k'RftifiYii#fa#tiF44k'Yf4YlhF4Yk4#iY1tli#4i#ifl�.111*i#41iifRl+ii#1Rfi11#k+i#4
�� Warning: �ivided flow computed for this cross-section.
Warning: The conveyance ratio lupstzeam conveyance divided by downstream comeyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
wa[er surface was used.
CROSS SECTION OUTPUT Profile Nbase+l target de
.«.........x+++.+..+.w.+:..+.....x:.�:....�w.•....w.x+:.:..+.::::...w.x.x.x:.aix.x•+++..+....:.:
* E.G. Elev (ft) ' 4814.87 * Element * Left OB * Channel • Right OB *
R Vel Head ift) ' 0.12 ' Wt. n-Val. * 0.070 ^ 0.040 ' "' �
• W.S. Elev (ft) * 4814.76 ^ Reach Len. (ft) * 53o.00 * 680.00 * 520.00 *
* Crit W.S. (ft) ' 4811.15 * Flow Area (sq fU " 687�.03 * 1398.76 � *
* E.G. Slope (ft/ft) "0.0�0708 * Area (sq ft) * 6870.03 * 1398.76 • *
* Q Total (cfS) *16�00.00 * Flow (cfs) '10934.19 * 5765.87 * '
* Top Width (ftl * 1698.11 * Top Width (ft) ' 1540.11 * 158.00 * *
* Vel Total (ft/s) * 2.02 * Avg. Vel. (ft/sl * 1.59 ' 4.12 * *
* Max Chl Dpth (ft) ' 11.42 * Hydr. Depth (ft) * 4.46 * B.BS * "
• Conv. Total (cfs) *627403.3 * Conv. (cfs) *410787.1 *216616.2 * *
* Length Wtd. (fU * 586 J4 � Wetted Per. (fU * 1546.60 * 164.33 * *
* Min Ch E1 (ft) * 4803.33 * Shear (lb/sq ft) * 0.20 * 0.38
* Alpha * 1.84 * Stream Power (lb/ft s1 * 0.31 * 1.55 * *
* Fictn Loss IfU ' 0.30 R Cum Volume (acre-ft) * 580.05 ` 235.45 * 118.98 *
* C & E Loss (fU * 0.02 * Cum SA (acres) * 142.71 � 26.98 * 25.01 *
1k*!*i1!!!#YiYi1�.l4f+#hiMFRY!#+'h+!£fi#iilhfYtkRlFi{R41ifF*##ii1f5li#f1t#4tii#iYief!#+#ififfif*+Y#
Warning: �ivided Elow computed for this cross-section. �
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 58515
Page ae
STVRAIN.rep
INPUT
� Description:
� Station Elevation Data num= 48
Sta Elev Sta Elev Sta Elev SCa Elev Sta Elev
+.++..«.+.�....+.+....+....+....+...++............+::+..:..«.............a+:�...
1330 482'].3 1350 4822 1370 4821.2 1384 4819.5 1402 4815.2
1458 4802 1598 4803 1740 4805.7 1802 4805.7 1B39 4805.5
1892 9805.2 1995 4807.5 2065 4810 2107 4803 2201 4802
2399 4802 2599 4802 2693 4802 2722 4802 2750 4802
2798 4802 2996 4802 3070 4802 3203 4802 3234 4802
3251 4902 3309 4807.65 3331 4805.15 3345 4805 JS 3399 4905.65
3432 4803.85 3499 4803.85 3542 480'].75 3557 4813.5 3563 4808.15
3630 4805.5 3987 4805.5 4023 4816.5 4095 4617.5 4183 4818.6
4228 4818.5 4983 4820.5 5009 4816.5 5143 4816.5 5204 4815.65
5419 4817.05 5455 4819.05 5455.1 4819.05
Manning's n Values num= 3
Sta n W1 Sta n Val Sta n Val
:+:+::.:........+....:.:w++..:....w..++a..++....
1330 .07 3309 .04 3542 .07 �
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E�cpan.
3309 3542 780 1114 480 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev PeYmanent �
1330 2256 4815.5 F
3687 5455.1 481"/.5 F
Hlocked Obstructions num= 3
Sta L Sta R Elev Sta L Sta R Elev Sta L Sta I2 Elev
+++.�+.+.:.:...x:x:»+..+.+.+..+.+.....«+.x.:.:x++=.=...x:.�.::::.::...:.
1330 3309 4808 49B3 6000 4820.5 3551 3987 4808.5
CROSS SECTION OUTPUT Profile #100 yeai'
F*#4₹i4tfittttftA#k*iAiY#'F4#k1t#*#lf4f*Af1�.l111:fA'.lFFf'.l1:�if1MiYY11i144iiY14i#iMii#fiFA}fktTR4'.l1:fY
� E.G. Elev (fU t 4814.13 * Element * Left OB * Channel * Right OB "
+ Vel Head (fU * 0.08 * Wt. n-Val. * 0.090 * 0.040 � 0.070 *
� * W.S. Elev (fU * 4014.05 * Reach Len. (ft) * 780.00 * 1114.00 * 480.00 e
* Crit W.S. (ft) * 4809.84 • Flow Area (sq ft) k 6371.47 * 2078.02 758.97
" E.G. Slope (ft/Et) *0.000406 * Area (sq fU *11363.67 * 2078.02 * 2493.53 *
' Q Total (cfs) *16700.00 + Flow (c£s) * 9054.68 * 6679.23 • 966.09 *
' Top Width (ft) 3 2605.10 * TOp Wid[h (ft) * 1902.12 * 233.00 * 469_98 *
+ Vel Total (ft/5) ' 1.81 * Avg. Vel. (ft/s) * 1.42 * 3.21 " 1.27 *
* Max Chl Dpth (ft) "' 10.20 * Hydr. Depth (ft) + 6.05 * 0.92 R 5.23 •
* Conv. To[al (cfs) *828300.9 • Conv. (cfs) *44910�.6 *331282.4 * 47917.0 *
* Length Wtd. (ft) + 848.17 * Wetted Per. (ft) * 1053.00 • 233.74 " 147.97 *
" Min Ch E1 (ft) * 4803.85 * Shear (lb/sq ft) * 0.15 * 0.23 * 0.13 •
* Alpha * 1.62 * Stream Power (lb/ft s) � 0.22 * o."/3 * 0.1� +
* Frctn Loss (ft) * 0.45 ' Cum Volume (acre-ft) � 579.80 ' 190.99 * 290.54 *
* C 6 E Loss (fi) * 0.02 • Cum SA (acres) � 19�.03 • 23 JS * 135.35 *
+3�t::.�xa+++ixw+��ti��t�:+:�..�wR�i.nw+�+r;ix�+r�+�+ai«+�+��rit�kx+.nwwx+xxwK�.xx�.�+�::.wxxr+
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT Profile #base+l target de
+�+x.�R���+ir:F++tttts::.��t.�awxx..x.++xr++�t+++�tittiaa�:x..r,xxxr+�iw��+a�:+��=t:x<xr.xxx�w*aa+
� E.G. Elev (ft) • 4814.56 * Element • Lef[ OB � Channel * Right OB *
� Vel Head (ft) * 0.08 • Wt, n-Val. * 0.070 * 0.040 * *
* W.S. Elev (ft) * 4814.47 t Reach Len. (£t) * 780.00 * 1114.00 * 480.00 "
* Crit W.S. (ft) * 4809.83 * Flow Area (sq ft) * 6817.25 * 2176.66 • �
* E.G. Slope (ft/ftl *0.000383 ' Area (sq ft) *10866.79 • 2176.66 * *
* Q Total (cfs) a16700.00 * Flow (cfs) � 9831.33 * 6868.67 * *
* Top Width (ft) * 1922.00 * Top Width (ft) * 1689.00 � 233.00 * *
* Vel Total (ft/s) f 1.86 * Avg. Vel. (£t/s) * 1.44 * 3.16 t *
a Max Chl �pth (fU * 10.62 + Hydr. Depth (ft) * 6.47 * 9.34 � +
* Conv. Total (cfs) *853882.0 * Conv. (cfs) +502682.2 �351199.6 � *
* Length Wtd. Ift) * 854.25 * Wetted Per. (fU * 1053.00 * 240.46 * *
* Min Ch E1 Ift) * 4803.85 * Shear Ilb/sq fU * 0.15 * 0.22 • +
" Alpha * 1.54 + Stream Power (lb/ft s) * 0.22 � 0.68 ' t
" Prctn Loss (ft) * 0.39 * CUm VOlume (acie-ft) ' 472.15 * 207.54 * 118.98 R
* C s E Loss (ft) � 0.01 ` Cum SA (acres) * 123.06 * 23.92 * 25.01 *
1#iiin+ltAf4flf�.tFl11f�1YY+#i4Y1�#f##!#h#h1tf14fF14hf*41f#!Yi#k#11#fe#ffA#1f#4i+#i�+#iY4l1�f4#i41i
Page 49
STVRAIN.rep
Note: Mul[iple critical depths were found at [his location. The critical depth with the lowest,
� valid,
" water surface was used.
CROSS SECTION
RIVER: St. Viain River
REACH: FULL RIVER RS: 57401
INPOT
Description: This cross-section changed from [he pre condition at station 1529
by lifting ihe elevation 2 feet to facilitate a future detention
pond.
Station Elevation Da[a num= 50
Sta Elev Sta Elev Sta Elev S[a Elev Sta Elev
:...�:x.w..++..:.:«+.«+.++::�.r+++.....:�:.:w.::.:x=..�.x=.xx.++..+.:++.+r«::x:w
1320 4826 1340 4824 1360 4822 1480 4812.8 1529 4815
1535 4813 1582 4823.5 1638 4824.5 16�4 4828.1 1844 4827.5
1857 4624.5 2048 4802 2080 4802 2098 4802 2243 4802 �
2267 4602 2515 4802 2706 4802 2854 48a2 3055 4812
3082 4811 3100 4803 3176 4803 3189 4806 3212 4805
3225 4807 3244 4807 3340 4812.5 3399 4806.25 3401 4805.5
4333 4805.5 4401 4816.5 4503 4815.5 4612 4017.3 4665 4816.5
4908 4816.5 49�9 4805.5 5269 4805.5 5314 4817.5 5409 4B16.5
5445 4816.8 5539 4814.65 5544 4816.65 5571 4B16.65 5579 4815.45
5586 481�.15 5760 4814.75 5940 4814.65 6174 4814.65 6378 4818.25 �
Manning's n values num= 3
Sta n Val Sta n Val Sta n Val
�........++..«.....:.,.+.+..++.+..:.:.+..+:..�.+
1320 .07 3082 .04 3244 .07
Bank Sta: Left Right Lengths: Left Channel Righ[ Coeff Contr. Espan.
3082 3244 830 905 790 .3 .5
IneffecCive Flow num= 2
Sta L Sta R Elev Pelmanent
� 1320 2532 4815.5 F
. 3986 6378 4817 F
Hlocked Obstructions num= 3
SGa L S[a R Elev Sta L Sta R Elev Sta L Sta R EleV
#1#tRf1i#i4xtSFfYfY#11tlRxll4xtlf##iWY#1�1lk�4#ii4Wh1R�1A}TfRF1kliit*f1R
7360 1582 4814 1857 3082 4808 3380 5409 4808.5
CROSS SECTION OUTPUT Pro£ile #300 yeaY
11R4ixf11f!#h1�11Rttf1##4#ti#1�+tAlt1!!k#iY14f4fxxTi#klY1fFYR#11�*Ytii111t11fkx4i##F#YYY1iYYhff
� E.G. Elev (ft) * 4813.66 * Element * Left �B * Channel * Right OB *
* Vel Head (fU ` 0.13 * Wt. n-Val. ' O.o70 * 0.040 * 0.070 ^
� W.S. Elev (fU * 4813.53 * Reach Len. (ft) " 830.00 * 905.00 * 790.00 *
" Crit W.S. (ft) * 4810.36 * Flow Area Isq fU • 2786.62 • 1441.98 • 3537.57 *
* E.G. Slope (ft/ft) *0.000737 * Area (sq ft) ' 5875.04 � 1441.98 * 7209.3� *
w Q Total (cfs) *16�00.00 R Plow (Cfs) ' 4737.15 ' 6190.46 ' 5��2.40 *
* Top Widffi (ft) * 28�5.83 * Top Width (ft) ^ 1131.88 R 762.00 * 1511.94 *
* Vel Total (f[/s) * 2.15 * Avg. Vel. (ft/s) � 1.70 ' 4.29 ' 1.63 *
" Max Chl Dpth (fU * 10.53 * Hydr. Depth (ft) � 5.07 � 8.90 � 4.77 *
• Conv. Total (cfs) *615066.9 * Conv. (cfs) �1744�0.7 *227996.8 +212599.3 *
* Length Wtd. (ft� * 855.60 * Wetted Per. (fU ` 550.12 � 164.21 • 742.62 •
* Min Ch E1 (fU * 4803.00 * Shear (lb/sq ft) ' 0.23 ' 0.40 • 0.22 *
• Alpha • 1.85 * Stzeam Power (lb/ft e) • 0.40 • 1.73 * 0.36 *
t Frctn Loss (ft) * 0.62 * Cum Volume (acre-ft) + 425.46 • 745.98 � 237.08 *
* C 6 E Loss (ft) * 0.01 * Cum SA (acres) ' 169.87 * 18.70 * 124.43 *
+�++rx.�.a+t**�+tK«..:i�ii+i�r�t�t�+��a++���+��x�i�+r��i�+i��wwi���i�t�+tii�riwr���+���ir�ii��i
Warning: Divided flow computed for [his cross-section.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION �UTPUT Profile #baseal target de
R41�1w1lh1Yi1iilffixltM4kIR4#tf4f##i�411f1}!#f11i1R�#rR�MRifiiflRilRf4k111fhi4Yf#11xfAflfiitFil
+ E.G. Elev Ift) � 4814.16 * Element • Left OB ` Channel * Right OB •
� Vel Head (ft) * 0.11 * Wt. n-Val. • 0.070 " 0.040 * 0.070 �
* W.S. Elev (£U • 4814.05 k Reach Len. (ft) ' 830.00 * 905.00 * 790.00 ^
: � Crit w.S. Ift) " 4830.36 * Flow Area (sq fU ` 3074.24 * 1526.70 * 3925.60 *
Page 50
STVRASN.rep
� E.G. Slope (ft/fU `0.000555 * Area (sq fU * 4781.39 * 1526.70 • 4275.48 • �
, * Q Total (ctsl *16700.00 ` Flow (cfs) * 4839.64 t 5905.30 � 5955.07 •
* Top Width (ft) * 1799.00 * Top Width IfU * 832.00 * 162.00 � 805.00 t
+ Vel Total (ft/s) * 1.96 "' Avg. Vel. (ft/s) * 1.57 * 3.87 * 1.52 *
* Max Chl Dpth (fU * 11.05 * Hydr. Depih (fU i 5.59 * 9.42 * 5.29 *
* Conv. To[al (cfs) *709131.1 • Conv. (cfs) +205505.4 t250756.2 w252869.6 •
"' Length W[d. (ft) * 860.01 * Wetted Per. (fU ' 550.72 * 164.21 ' 742.62 *
* Min Ch E1 IfU * 4803.00 "' Shear (lb/sq ft) � 0.19 * 0.32 * 0.18 *
+ Alpha * 1.78 * Stream Power (lb/f[ s) • 0.30 * 1.25 * 0.28 *
* Frctn Loss (ftl � p.62 " Cum Volume (acre-f[) * 332.05 * 160.19 t 95.42 *
* C & E Loss (ft) w 0.05 ' Cum SA (acres) ` 100.49 * 18.8"1 * 20.57 *
..:...«.a.:.::.,.::..:.....:.....:xx+::r..+.+.a....+.x.+..:.x.x......++.::.«<xx.w....::..:..+..
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACN: FULL RIVER kS: 56496
INPI7T
Description: This cross-section changed from the pre condition at station 2027
and 2022 to account for a berm that will be created to facilitate
a detention pond in the futuze phases of St. Vrain.
The
mannings value £or the left over-bank section of this
cross-section has been raised so that the weir flow over the
bridge is within 10-209 of the left overbank flow for this
cross-section.
Station Elevation Data num= 50
Sta Elev S[a Elev Sta Elev S[a Elev Sta Elev
�+t+i...,rita+..+:..i:ixt.:.x:w�w+x+��i��x��rxe.++�+:.xw.x3��t�er��xRwiraw+yf.�:.
� 7280 4815 1300 4813 1373 4817.5 1597 4810.5 1805 4810
2022 4810 202� 4810 2044 4814 2059 4814 2083 4813.5
2169 480� 2192 4807.3 2395 4806 2423 4806 2474 4806.8
2594 4806.9 2732 4806.5 2766 4806.5 2820 4808.5 28'/7 4808.5
� 2938 4804.5 3134 4801 3347 4807 3429 4809.5 3451 48�3.55
� 3549 4802.55 3614 4802.55 3640 4806.15 3607 4807 3721 4807
3873 4808.5 3951 4807.7 4020 4807.5 4043 4807.7 4248 4808.5
4552 4810.5 4690 4812.5 4968 4813.5 5169 4814.7 5402 4815.9
5675 4816.9 591� 4821 6029 4816.15 6050 4814.75 6076 4814.75
623"1 4814.45 6441 9815.35 6696 4814.65 6920 4813.85 7132 4B14.95
Manning's n Values num= 3
Sta n Val Sta n Val Sta ❑ Val
.t.+...+.x...+::::...x.:..:.xxxx.x+....ax.��.+..
1280 .1 3429 .04 3640 .07
Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. E�cpan.
3429 3640 233 206 180 .3 .5
Ineffective Flow num= 2
Sta L 5[a R Elev Permanent
1280 3203 4811 F '
3721 � 7132 4817 F
Hlocked obstructions num= 3
Sta L Sta R Elev Sta L Sta R Elev Sta L Sta R Elev
+..x+..aa.:..w.x+.++x....x+«...:.xx.»:+..+.xsx::+...:ix:.....+.��:::...+
1280 2027 4814 2044 3429 4808 4248 4815 4808.5
CROSS SECTION OUTPUT Profile p100 year
#h#fi4tflY;YixF4�f4R11iiTt4kh4M�.!/�#+4iYik�fhi'.!4*4*t�tF1f#i#f�.t1:fT111ikkil:itfll}'Yh11:114R4h1'.YA1#F#RF
• E.G. Elev (Et) ; 4813.03 t Element • Left OB * Channel * Right OH *
� Vel Head (ftl + �.09 + Wt. n-Val. * 0.100 * 0.040 * 0.070 *
* W.S. Elev (ft) x 4812.86 R Reach Len. (ft) * 112.00 * 112.00 • 112.00 *
+ Crit W.S. (fU * 4809.43 * Flow Area (sq fU ' 6295.94 � 1992.99 * 494.94 *
* E.G. Slope (fc/f[) •0.000710 * Area (sq ft) + 6295.94 • 1992.99 � 4333.'J9 +
• Q Total (cfs) �16700.00 � Flow (cfs) * 5169.15 * 6510.59 * 693.31 *
� Top Width (ft) • 2711.88 * Top Width (ft) � 1349.75 * 211.00 ' 1151.13 �
• Vel Total (ft/s� * 1.41 ' Avg. Vel. (ft/s) * 0.82 * 3.27 � 1.40 R
• Max Chl Dp[h (ftl R 10.31 • Hydr. Depth (ftI * 4.66 ' 9.45 * 6.11 *
Page 51
STVRAIN.rep
� • Conv. Total (cfs) *626639.8 * Conv. (cfs) *261794.3 +329732.2 * 35113.3 *
. � � Length Wtd. (fU * 112.00 * Wetted Per. (ft) * 1353.18 k 212.04 i 81.01 * -
� * Min Ch E1 (fU ' 4802.55 * Shear Ilb/sq ft) * 0.21 0.42 0.27
+ Alpha • 3.03 • Stream Power (lb/ft s) * 0.17 • 1.36 ' 0.38 *
* Frctn Loss (ft) ' 0.14 * Cum Volume (acre-ft) * 309.51 * 110.30 ' 132.41 *
+ C & E Loss (fU " 0.27 R Cum SA (acres) ' 146.23 * 14.83 * 100.28 *
..x,.+..+.«..............:..+..+s.+..x.,:.«.....:...«..x.x.:.:x...:.,.r«+:�.,a.a....x..a+«.«+«.
warning: Divided flow computed for [his cross-section.
warning: The velocity head has changed by more than 0.5 ft (o.ls m) . This may indicate the need for
addi[ional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstzeam conveyance) is less than
0.� or greater than 1.4. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CROSS SECTIDN OUTPUT Profile #baseal target de
iilS+ttl#1itlRlxftY#FF1xFY*YYkxf/ki�*iMAA#t4lk54R}f4F+4t4WiM+11x4iiiilkfi#YWxt1#i}stili+IlxtYf•
+ E.G. Elev (fU * 4813.49 " Element * Left OB • Channel * Righ[ OB *
• Vel Head (ft) ' 017 " Wt. n-Val. * 0100 * 0.040 * '
* W.S. Elev (fU * 4813.22 * Reach Len. (ft) * 112.00 • 112.00 � 112.00 *
• Crit W.S. (fU * 4809.56 ' Flow Area (sq fU * 4441.27 • 2068.62 + *
' E.G. Slope (ft/fU '0.000960 ' Area (Sq ft) ' 4441.27 ' 2068.62 * *
* Q Total (cfs) *16700.00 * Flow (cfs) � 4788.31 t 8395.83
� Top Width (Etl * 1075.00 * Top width (ft) * 864.00 ' zll.00 * *
* Vel Total (ft/s) * 2.03 * Avg. Vel. (ft/s) • 1.08 t 4.06 * *
* Max Chl Dpth (ftl * 10.67 * Hydr. Depth (fU • 5.14 * 9.80 ` {
t Conv. Total lcfs) "539022.6 " Conv. (cfs) *195766.1 �343256.5 *
� Length Wtd. (fU * 112.00 ' We[ted Per. (ft) • 869.27 ; 219.12 " *
+ Min Ch E1 (ft) * 4802.55 ` Shear (lb/sq f[) ' 0.31 0.5'1 *
* Alpha * 2.66 ' S[ream Power (lb/ft s) * 0.33 ` 2.30 * '
• Fzctn Loss Iftl ' 0.19 ' Cum Volume (acre-fU * 244.18 ' 122.84 * 56.65 *
* C � E Loss Iftl ' 0.31 * Cum SA ('acres) * 84.33 " 15.00 * 13.27 *
:•x=.+++»xx=...«.+..+.+.::x..++.x.=.+:xx�...w»+.:..:t:+:.x:++::x:.++::x:x+.+:.xx.+:...w.+.:.:.x
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
y� addi[ional cross sections.
- Warning: The conveyance ratio lupstxeam conveyance divided by downstream conveyance) is less than
0.7 or greater [han 1.4. This may indicate the need for additional cross sections.
Note: Multiple cri[ical depths were found at this location. The critical depth wiCh the lowest,
valid,
energy was used.
BRIDGE
RIVER: St. Vrain River
REACH: FULL RIVER RS: 56400
INPUT
Description: Bridge at WCR13
Distance from Upstream XS = 112
Deck/Roadway width = 65
Weir Coefficient = Z��
Upstream Deck/Roadway Coordinates
num= 22
Sta Ni Cord Lo Cord Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord
4k+#iY114YS41l4k4+f1#*[tilM*11t�.t4:YtfiY41'.lti*!1!#4i4##41fYi14kf'fif1M#Y�ft
1280 4820 4800 16'73 4820 4800 1759 4820 4800
1955 4816 4800 2174 4812 4800 2591 4811 4800
2991 4812 4800 3146 4814 4800 3290 4817 4800
3465 4820 4800 3466 4820 4814.4 3664 4820 4814.4
3665 4820 4800 3865 4818 4800 4065 4817 4800
4465 4817 4800 4865 4817 4800 5265 4817 4800
5665 4817 4800 6065 4817 4800 7127 4817 4800
7132 4817 4800
Page 52
STVRAIN.rep
Upstream Hridge Cross Sectio� Data �
, Station Eleva[ion ➢ata num= 50 .
� Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
x+x+�rrxy�wrr:+*+++rvrF+*rrixii��+rrRr+ki..+r.+tiix+�tii+Fit+ir�..:xxaa�:ta�t�.a�
1280 4815 1300 4813 1373 4811.5 1597 4870.5 1805 4810
2022 4810 2027 4810 2044 4814 2059 4814 2083 4813.5
2169 4807 2192 4807.3 2395 4806 2423 9806 2474 48D6.8
2594 4806.9 2732 4806.5 2766 4806.5 2820 4808.5 2877 4BD8.5
2938 4804.5 3134 4801 3347 4807 3429 4809.5 3451 4803.55
3549 4602.55 3614 4802.55 3640 4806.15 368"/ 4807 3721 4807
38"13 4808.5 3951 4807.� 4020 4807.5 4043 4807.7 4248 4808.5
4552 4810.5 4690 4812.5 4968 4813.5 5169 4814.7 5402 4815.9
56'15 4816.9 591� 4821 6029 4816.15 6050 4814.75 6076 4814.75
6237 4814.45 6441 4815.35 6696 4814.65 6920 4813.85 7732 4814.95
Manning's n Values num= 3
Sta n Val Sta n Val S[a n Val
..+...++w..++..+..+...+.......x+..+xxwxx:.x...:.
1280 .1 3429 .09 3640 .0"/
Bank Sta: Left Right Coeff Conir. E�cpan.
3429 3640 .3 .5
Ineffective Flow num= 2
Sta L Sta R Elev Permanent
1280 3203 4611 F
3721 7132 4817 F
Blocked Obstructions num= 3
Sta L Sta R Elev Sta L Sta R Elev Sta L Sta R Elev
1Af1R1:k1}+1#k1!#1t�.l14�ti1t1'.l1:�.tFAf4itiF44k+iki4i'RiF1il:fMiRvlf4M*#k+4#biY#Y+
1280 2027 4814 2044 3429 4808 4240 4815 4808.5
Downstream Deck/Roadway Cooxdinates
num= 21
Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord 5[a Hi Cord Lo Cord
�ta�t++Ft+�:«t3:3.::�:k�.�.:��t��.x++�x:w.+xR+rR+x..x:�++�t+i++W+iia+��R
1673 4820 4800 1759 4820 4800 1955 4816 4800
� 21'/4 4812 4800 2591 4811 4800 2991 4812 4800
3146 4814 4800 3290 4817 4800 3465 4820 4800
' 3466 4820 4814.4 3664 4820 4814.4 3665 4820 4600 .
3865 4818 4800 4065 401� 4800 4465 4817 4800
. 4865 4817 4800 5265 4817 4800 5665 4817 4800
6065 481� 4800 7127 4817 4800 7132 4817 4800
Downstream Bridge Cross Section Data
Station Elevation Data rtum= 21
Sta Elev Sta Elev Sta Elev Sta Elev Sta 81ev
i#+4l+4#if#iiii#4Ak!**1:1#1:***k*f+i#i#*ti4###'R!#A4fi4##4##*i##iYii+Y#SYYRYI4'F1[F#I%
16]3 4818 2074 4810 2540 4810 2775 4810 3202 4611
3337 4811 3465 4011 3466 4804.05 3500 4802.15 3590 4802.15
3664 4802.15 3665 4809 3666 4810 3755 4810 4234 4810
4716 4810.65 4914 4812.05 5567 4813.55 6205 4814.45 6900 4814.85
�12'] 4816.85
Manning's n Values num= 3
Sta n val Sta n Val Sta n Val
::::+.:+..x..:.:..+k.x�=x.x==:x=++:.++:.x:..a..x
1673 .04 3465 .04 3665 .07
Bank Sta: Left Right Coeff Conir. E�cpan.
3465 3665 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
3665 7127 481"1 F
Upstream Embankment side slope = 2.'7 horiz. to 1.0 vertical
Downstream Embankment side slope = 3.2 horiz. to 1.0 vertical
Maximum allowa6le submergence for weir flow = .95
Elevation at which weiz flow begins = 9811
Energy head used in spillway design =
Spillway height used in design =
weir crest shape = Hroad Crested
. Number of Piers = 2
Page 53
STVRI+IN.rep
Piex Data
. � Pier Station Upstream= 3525 Downstream= 3525
� Upstream num= 2
width Elev Width Elev
«x..,.+�+..�ww�w.x�xw:r�::x«rk«:,
4 4800 4 4814.45
DownsGream num= 2
WidCh Elev Width Elev
�a..:rxr:+::a..rr..w:�,�.,r:.:xx+.+
4 4800 4 4814.45
Pier Data
Pier Station Upstzeam= 3602 Downstream= 3602
Upstream num= 2
Width Elev Width Elev
.«:.:«�:.+itt+:+.ta�ii+i�a�a+�«+
4 4800 4 4814.45
Downstream num= 2
Width Elev Width Elev
�::.:tx:�;t�asri�rr��++��.�Mr«Rr+
4 4800 4 4814.45
Number of Bridge Coefficient Sets = 1
Low Flow Me[hods and Data
Energy
Momentum Cd = 2
Selected Low Plow Methods = Highest Energy Answer
High Flow Method
� Pressure and Weir flow
Submerged Inlet Cd =
Submerged Inlet + outlet Cd =.8006408
MaX Low Cord = 4814.4
Addi[ional Bridge Parameters
Add Friction component to Momentum
I Do no[ add Weight component Co Momentum
�� Class e flow critical depth computations use critical depih
inside the bridge at the upstream end
Criteria to check for pressuze flow = Upstream energy grade line
BRZDGE OIITPUT Profile �{100 year
tltilkf#R�4lft�'.11Ffk414FkHY�£4f:a�if�1i�111#4'Ii'Ik!!i##1#iY/111Rt}tR1#i#iiYYiflfetl�.lR11RRt41ff1f
' E.G. U5. (ft) " 4813.03 * Element *Inside BR US 'Inside HR DS '
• W.S. US. (ft) ' 4812.86 ' E.G. EleV (fU * 4812.63 • 4012.27 *
* Q To[al (cfs) ` 16700.00 • W.S. Elev (£t) '� 4811.56 * 4811.50 w
* Q Bridge (cfs) ' 12373.06 + Cri[ W.S. (ft) * 4809.80 � 4808.56 *
t Q weir (cfs) • 4326.94 � Max Chl Dpth (ft) * 9.01 * 9.35 *
' Weir Sta Lft (ft) * 211'7.41 * Vel Total (ft/s) • 8.00 * 7.0'1 *
* Weir Sta Rgt (Et) • 30�1.11 ' Flow Azea (sq fU * 1545.80 " 1749.21 *
* weir Submerg • 0.00 * Froude p Chl * 0.50 ' 0.41 '
* weir Max Depth (Et) * 2.03 ' Specif Porce (cu fU * 9589.03 • 10"159.2� *
* Min E1 Weiz Flaw (ft) * 4811.01 * Hydr Depth (ft) * 8.12 * 9.19 "
" Min E1 Pis (ft) * 4814.40 • W.P. Total (fU * 240.29 * 244.34 �
' Delta EG (fU * 1.07 • Conv. Total (cfs) * 195095.1 + 241366.5 *
+ Delta WS (fU * 2.36 * Top Width (ft) * 190.39 * 190.40 *
' BR Open Area (Sq ft) • 2�85.20 " FYCtn Loss (ft) * 0.21 " 0.10 *
k HR Open Vel (ft/S) * 8.00 " C s E Los9 (ft) * 0.14 • 0.21 t
* Coef of Q • ' Shear Total (lb/sq ft) * 2.94 * 2.14 *
• Br Sel Method *Energy/Weir � Power Total (lb/ft s) + 23.55 ^ 15.13 *
.»..::.:..+...i....::.::.......+.a............a....«.+.+.+.....x+«........x..:..�..rr.x..�..:.
Note: Momentum answer is not valid if the wa[er suzface is above the low chord or if there is weir
flow. The momentum answer has been disregarded.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
Note: Notes(60) : This is an inside cross section of a perched bridge that has energy, low flow inside
of the bridge and weiz flow over the embankment. The reported hydraulics are based on the
flow and area inside of the bridge.
Warning: The veloci[y head has changed by more [han 0.5 ft (0.15 m) . This may indicate the need for
! additional cross sections.
Page 54
STVRAIN.rep
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
Note: Notes(60) : This is an inside cross section of a perched bridge that has energy, low flow inside
of the bridge and weir flow over the embankment. The reported hydraulics are based on the
flow and area inside of the bridge.
BRIDGE 0UTPUT Profile #base«1 target de
.:.+xx......:.xr..........x.x:x...:+.:.....:...x+«.r.w+.+«r+...a..::.«.x.....+:..+.x+:....x.+
• E.G. US. (ft) R 4813.49 • Element iInside 6R US *Inside BA DS •
* W.S. US. (fU * 4813.22 � E.G. Elev (ft) * 4813.00 * 4812.54 *
* Q To[al (cfs) * 16700.00 ' W.S. Elev (ft) * 4811.70 * 4811.70 "
* Q Bridge (cfs) + 13184.13 � Crit W.S. (ft) * 4809.86 * 4808.56 *
* Q Weir (cfs) � 3515.8'] • Max Chl Dpth Ift) R 9.15 �' 9.55 •
* Weir Sta Lft (fU * 2565.00 * vel Total (ft/s) • 9.14 * 7.38 "
� Weir Sta Agt (ft) " 3106.80 ' Flow Area (sq f[) + 1442.30 * 1787.14 *
t weir Submerg + 0.01 � Froude # Chl • 0.55 * 0.42 *
* WeiY Max Depth (ft) ' 2.49 * Specif FOYce (cu ft) * 10040.15 ' 11414.05 '
• Min E1 Weii Flow (ft) ' 4811.01 * HydT Depth (ft) * 8.68 * 9.39 *
� Min E1 Prs (ft) * 4814.40 ' W.P. Total (f[) � 211.45 * 245.54 •
* Delta EG (ft) . � 1.07 t Conv. To[al (cfs) * 192701.0 * 249338.0 *
* Delta WS (ft) * 1.78 * Top Width (ft) * 166.19 * 190.38 3
" BR Ope[1 Area (sq £t) * 1890.38 ' Frctn Loss (ft) * 0.23 * 0.�8 '
* HR Open Vel (ft/s) * 9.14 * C & E Loss (ft) � 0.23 "' 0.04 *
• Coef of Q • * Shear Total (lb/sq fU * 3.20 * 2.o4 •
= Br Sel Method *Energy/Weir K Power Total (lb/ft s) • 29.23 * 15.04 r �
++...:.�x...�+..:..:wxx.x.w...+.:xx.x.:a.........e.::x+.�r......a.++..«.w.......+.++.x.....++.
Note: Momentum answez is not valid if the water surface is above the low chord or if there is weir
flow. The momentum answer has been diszegarded.
Note: Multiple critical depths were found a[ this location. The critical depth with the lowest,
valid,
energy was used.
No[e: Notes(60) : This is an inside cross section of a perched bridge Ghat has energy, low flow inside
q of the bridge and weir flow over the embankment. The reported hydraulics are based on the
9 flow and area inside of the bridge.
Note: Multiple critical depths were found at this lowtion. The critical depth with ihe lowest,
valid,
energy was used.
Note: Notesl6o) : This is an inside cross section of a perched bridge that has energy, low flow inside
of the bridge and weir flow over the embankment. The reported hydraulics are based on the
flow and area inside of the bridge.
CROSS SECTION
RIVER: SL Vrain kiver
REACH: FULL RIVER RS: 56290
INPUT
Descrip[ion: COUNTY ROAD 13 (NEW BRIDGE)
The mannin9s value for the left
over-bank section of this cross-section has been lowered so that
the weir flow wer the hridge is within 10-208 af the left
overbank flow for this cross-section.
Station Elevation Data num= 21
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
fAxt�YiRAYM'R#iftfAl:klh4)R4ifklfYl:+lflff4tfT111kFY11lY41#Y:l4#ii11i4fiR111fYii#ii#
1673 4878 2074 4810 2540 4810 2775 4810 3202 4811
3337 4811 3465 4811 3466 4804.05 3500 4802.15 3590 4802.15
3664 4802.15 3665 4809 3666 4810 3755 4810 4234 4810
4716 4810.65 4914 4812.05 556"] 4813.55 6205 4814.45 6900 4814.85
7127 4816.85
Manning�s n Values num= 3
Sta n Val Sta n Val Sta n Val
.......«.:....+....+........:....:+..+......«...
1673 .04 3465 .04 3665 .07
�. Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan.
. 3465 3665 770 960 1165 .3 .5
Page 55
STVRAIN.rep '
Ineffec[ive Flow num= 1
j Sta L Sta R Elev Permanent
� 3665 7127 48ll F
CRO55 SECTION OUTPUT Profile p100 year
.+.a.+..+....+w.«...«......+.+:�xk.x+.w+�..,+.�..«.x....:,...:.:....a�+.�...:w....:«:rw.++x....
* E.G. Elev (fU * 4811.96 � Element * Left OB • Channel * Right OH *
• vel Head (f[) � 1.46 " W[. n-Val. • 0.040 � 0.040 * *
* W.S. Elev (f[) � 4810.50 * Reach Len. (fU * 770.00 • 960.00 * 1165.00 *
* Cri[ W.S. (fU * 4808.36 • Flow Area (sq fU • 412.90 + 1629.53 * '
R E.G. Slope (ft/ft) �0.004646 � Azea (sq fU + 412.90 * 1629.53 * 380.46 *
* Q TOCal (Cfs) �16�00.00 • Flow (cfs) � 603.73 *16096.27 * *
� Top Wid[h (ft) ' 2082.89 * Top Width (ft) � 940.96 * 199.93 * 942.00 •
� Vel To[al (ft/s) * 8.18 a Avg. Vel. (ft/s) * 1.46 R 9.88 * ^
` Max Chl Dpth (fU • 8.35 * Hydr. Depth (ft) + 0.44 ' 8.15 • i
* Conv. Total (cfs) �244999.0 ` Conv. (cfs) • 8857.0 •236140.0 « +
� Leng[h Wtd. (ft) t 897.92 * Wetted Per. (f[) � 940.97 * 211.50 � *
` Min Ch E1 (ft) � 4802.15 • Shear (lb/sq ft) * 0.13 � 2.23 * +
� Alpha * 1.41 * Stieam Power (lb/ft s) • 0.19 * 22.08 * *
* Frctn Loss (fU • 2.11 � Cum Volume (acre-ft) * 301.28 x 102.43 * 126.45 •
* C 6 E Loss (ft) ' 0.63 * Cum SA (aCzes) • 144.18 • 13.95 ' 98.43 *
tiY1F444Ax1M1i1+1f}wY1#ihkYYt441xx#ff1Y4#S#w#itfAflhiiii44#kMf�lfilifi#iiMYiMYF#M4Y}RiYf1*f1i11
Warning: Divided flow computed for this cross-section.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The cortveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.� or greater than 1.4. This may indicate the need for additional cross sections.
warning� The energy loss was greater than 1.0 ft 10.3 m) . be[ween the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with Che lowest,
valid,
energy was used.
CROSS SECTIDN OUTPUT PYofile #base+l target de
:.r,.»t��t:i��.��ta....:...x�w��+ti���t*t��<t+w�+w:ii+a.����t.�.R�Rx:���r���rw��++«.aa��aR�rw++
R E.G. Elev (ft) • a812.42 • Element * Left Oe * Channel * Right OB *
� • Vel Head (ft) t 0.97 � Wt. n-val. R 0.040 ` 0.040 * *
. " W.S. Elev (ft) * 4811.45 � Reach Len. (f[) 770.00 960.00 * ll65.00 •
' Crit W.S. �fU * 4800.34 + Flow Area (sq ft) • 843.0� ' 1817.98 • *
* E.G. Slope (ft/ft) *0.002894 * Area (sq fU * 843.07 * 1817.98 ` +
* Q Total (cfs) *16�00.00 * Flow (cfs) * 1595.84 �15104.16 • *
* Top width (ft) ^ 1713.00 * Top Width (f[) + 913.00 * 200.00 � *
* Vel Total (ft/s) * 6.28 • Avg. Vel. (ft/s) * 1.89 * 8.31 � *
* Max Chl Dpth (fU * 9.30 � Nydr. Depth (ft) � 0.92 • 9.09 * •
" Conv. Total (cfs) �330454.0 * Conv. (cfs) � 29666.7 +280787.3 * •
* Length Wtd. (E[) * 899.97 R Wetted Per. (ft) • 974.45 * 214.44 * *
* Min Ch E1 (ft) * 4802.15 ` Sheaz (lb/sq ft) ' 0.17 * 1.53 * *
* Alpha * 1.59 • Str2am Powei (lb/ft S) ' 0.32 * 12.72 � *
* Frctn Loss (fU * 1 J3 W Cum Volume facre-ft) * 238.19 * 114.72 * 56.65 �
* C & E Loss (f[) " 0.35 * Cum SA (acres) * 82.92 • 14.12 • 13.27 *
.:.«+.a...:.,.x+............w:....+..::......:._.:..+......::+..:....:.:.:.....w:.......:::..:+
warning: The veloci[y head has changed by more than o.s ft (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (ups[ream conveyance divided by downstream conveyance) is less ihan
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m) . between the current and previous cross
section. This may indica[e the need for additional cross sec[ions.
Note: Mul[iple critical depths were found at this location. The critical depth with the lowest,
valid,
energy was used.
CAOSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 55330
INpUT
Description: The topographic information for this cross-section was taken from
the AWE HEC model.
Station Elevation Data num= 69
i Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
Page 56
STVRAIN.rep
.a.x....:.>++.x,..+.:..:x«..+...x.:.+�.+:+x..«w.+.:x•x.+k..•.....x....+.++�.t++.
. � 1290 4819.05 1290.1 4819.05 1329 4818.15 1354 4818.15 1406 4805.05
' 1480 4805.05 1499 4830.55 1515 4810.55 1523 4919.55 1552 4802.85
1665 4802.85 1717 4810.45 1751 4807.75 1787 4807.75 1823 4812.15
1907 4810.75 1941 4812.65 �040 4806.65 2382 4804.95 2648 4804.95
2671 4807.45 2704 9808.55 2736 4802.65 2777 4804.25 28�6 4805.05
2890 4802.25 2897 4805.05 3138 4805.35 3227 4811.25 3317 4811.85
338� 4807.85 3424 4805.95 3476 4805.95 3481 4807.85 3493 4806.15
3534 4806.15 3600 48D5.35 3614 4808.75 3635 4801.15 3657 4799.75
3�31 4799.75 3�50 4801.65 3773 4810.05 3799 4806.15 3903 4806.05
412� 4804.15 4146 4802.65 4166 4804.25 4293 4805.65 4596 4806.35
48�8 4805.65 4929 4804.25 4952 4805.25 5227 4806.45 5299 4808.75
5584 4813.15 5748 4813.45 6013 4814.15 6329 4814.25 6338 4815.65
6360 4812.35 6370 4814.25 6398 4814.25 6412 4812.35 6423 4814.05
6643 4812.95 6826 4812.35 7075 4811.25 7264 4811.15
Manning�s n Values num= 3
Sta n Val Sta n Val Sta n Val
#i#i4tFff14#itxflY#44i;AxtRtY14i1if1tli*#*IkxAxR
1290 .07 3614 .04 3773 .07
Bank Sta: Left Right Lengths: Left Channel Righ[ Coeff Contr. Expan.
3614 3�73 890 1360 1550 .3 .5
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
4473 7264 48ll F
Blocked obstructions num= 3
Sta L Sta R Elev Sta L Sta R Elev Sta L Sta R Elev
xet�+zar..x+:F�+.:��wRr+R�t+:+..�x+a+�>��xxrr:Ya+::��i.rR.x��«it:.xRxrxz
3��3 5584 4809 6643 7264 4812.95 1329 3227 4805
CROSS SECTION OUTPUT Pro£ile #300 year
..x..*.+.........+....w.x.+.+.,:.w....+....x..++.......x...:.«.:..:..xx...x....x...w...<:.x....
* E.G. Elev (ft) r 4809.22 * Element + Left OH * Channel * Right OB *
* Vel Head (fU • 0.20 k Wt. n-Val. * 0.070 w 0.040 * 0.070 *
* W.S. Elev (fU * 4809.02 � Reach Len. (ft) * 890.00 R 13fi0.a0 * 1550.00 *
� * Crit W.S. (ft) * 480�.29 * Flow Area (sq ft) * 5802.01 * 1192.98 ; 16.24 ;
* E.G. Slope (ft/ft) •0.001414 * Area (sq ft) • 5802.01 • 1192.98 36.00
' " Q Total (cfs) *16700.00 * Flow (cfs) *10310.23 * 6388.71 * 1.06 *
* Top Width (ft) • 3476.95 * Top Width (ft) t 1783.89 * 156.19 * 1536.87 *
i Vel Total (£t/s) " 2.38 t Avg. Vel. (ft/s) R 1.78 + 5.36 * 0.0� *
- • Max Chl Dpth (£t) • 9:27 � Hydr. Depth (ft) * 3.25 a 7.64 * 0.02 *
� Conv. Total (cfs) *444039.1 * Conv. (cfs) *274140.5 �169870.4 * 28.2 �
* Lengih Wtd. (fU * ll25.51 * Wetted Per. (ft) • 1787.98 • 158.97 * 693.16 t
* Min Ch E1 (ft) * 4799.75 * Shear (lb/sq ft) + 0.29 • 0.66 * 0.00 *
R Alpha R 2.2g � Stream Power (lb/ft s) ` 0.51 * 3.55 * 0.00 *
* FrCtn Loss (ft) * 1.26 F Cum Volssme (aCre-ft) • 246.35 * �1.32 * 120.88 *
* C s E Loss (Et) a 0.04 � Cum SA (acres) * 120.10 * 30.02 * 65.29 *
1kxfFx114YfR{fR4t#₹4ixxk44MiFfi4tt;;hii##4f#k�lx*fart+4ikF4thii4iiftiRxAiikiW!#kRxillYk!!t#t11fi
Warning: Divided flow computed for this cross-section.
warning: The energy loss was greatex than 1.0 ft (0.3 m) . between [he current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth with the lowest,
valid,
water surface was used.
CROSS SECTION OUTPUT profile #base+l target de
•#t#Rt11#k1li4IY#i#+*A4xa#Yiii4#*4iit##MMlMi+it{ii4#4l14i4Y#;4#!tfliil;k*ttflfll#}Y*t1x111lff�!
* E.G. EleV (ft) t 4810.33 • Element • Left OB * Channel � Aight OB *
* Vel Head (ft) * 0.27 * Wt. n-Val. * 0.070 " 0.040 * 0.070 *
• W.S. Elev (fU * n810.07 • Reach Len. (ft) * 890.00 * 1360.00 * 1550.00 *
* CYit W.S. (ft) * 4807.60 * PloW Alea (sq £t) + 4336.11 • 1357.37 � 20.85 �
* E.G. Slope (ft/ft) �0.001374 * Area (sq ft) � 4336.11 * 1357.3� * 20.85 *
" Q Total (cfs) +16�00.00 � Flow (cfs) t 8973.49 * 7711.63 + 14.88 t
* Top Width (ft) • 1202.16 " Top Width (fU • 1020.16 * 159.00 * 23.00 *
+ Vel Total (ft/s) � 2.92 * Avg. Vel. (ft/s) • 2.07 * 5.68 x �J1 *
* Max Chl Dpth (fU • 10.32 � Hydr. Depth (ft) * 4.25 a 8.54 * 0.91 *
' Conv. Total (cfs) t450538.0 * Conv. (cfs) *242089.7 •208046.8 * 401.5 *
• Length Wtd. (ft) * 1138.35 ' Wetted Per. (ft) * 1026.87 * 161.96 * 24.14 *
* Min Ch E1 (ft) * 4799.75 * Shear (lb/sq ft) • 0.36 * 0.72 * 0.07 �
* Alpha � 2.01 * Stream Power (lb/ft s) * 0.75 * 4.08 " 0.05 *
* Frctn Loss (fU * 1.31 � Cum Volume (acre-ft) * 192.42 � 79 J3 * 56.37 *
% * C s E Loss (ft) R 0.04 * Cum SA (acres) * 65.83 * 10.16 < 12.96 *
Page 57
STVRAIN.rep
wit�114f+ttiitixki4ft4f1kY4�hR�lfxFk4liii#i1kl11f#SRfxtRxlR1lfiif111�£FTillf�ilixlfYYitnifirtfkY
� Warning: Divided Elow computed for [his cross-section.
warning: The energy loss was grea[er than 1.0 ft (0.3 m� . between the current and previous cross
section. This may indica[e [he need for additional cross sections.
Note: Multiple cri[ical depths were found at this location. The critical depth with [he lowest,
valid,
water surface was used.
CROSS SECTION
RIVER: St. Vrain River
REACH: FULL RIVER RS: 53970
INPUT
Description: The topographic information for this cross-section was [aken from
Lhe ACOE HEC model.
Station Elevation Data num= 54
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
war:.:�.+Frrrr�.+.:.«+::�«��+tr.R.w.«ia«+i�xr.+�a++*��.�rr++�Fx.�r:+t+�++�...�.:
1220 4815.05 1250 480�.05 1255 4806.15 1276 4804.45 1315 480i.85
1339 4808.35 1364 4808.35 1379 4811.25 1400 4911.45 1428 4807.35
1460 4809.45 1513 4808.75 1524 4805.85 1547 4805.85 3200 4803.05
3513 4005.95 3565 4802.95 3728 4803.65 3743 4800.65 3786 4800.65
3816 4611.85 3836 4803.95 3856 4803.95 3871 4799.35 3905 4998 15
3970 4798.15 3985 4803.75 4052 4803.65 4390 4803.5 4400 4801.45
4413 4801.45 4426 4003.65 4527 4805.05 4552 4803.25 4603 4807.95
4893 4809.05 5133 4810.65 5388 4811.�5 5662 4811.85 5886 4812.05
6109 4811.�5 6341 4011.25 6363 4811.85 6480 4811.25 6500 4811.75
6522 4811.45 6531 4810.15 6540 4811.45 6566 4811.45 6578 4810.15
6591 4813.25 6601 4612.75 6784 4813.55 6903 4813.85
Manning's n Values num= 3
Sta n Val Sta n Val Sta n Val
....:...:++a...+,x:.::..:a....x::.+....+....+..+
1220 .0� 3856 .04 3985 .07
� Bank Sta: Lef[ Right Lengths: Left Channel Right Cceff Contr. Expan.
3856 3985 740 730 820 .1 .3
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
5452 6903 481� F
� Blocked Obstructions num= 2
Sta L Sta R Elev Sta L Sta R Elev
xr�xw:w...t+iw..:.a�+�ixw+..i.:wrR�+x+xraR�i++.+
1220 3816 4805 3985 6903 4803.8
CROSS SECTION OUTPUT Profile q100 yeai
.++.....:.:...+.*.x...a....+...:....x+aa.r...+a.++..+.........++.....x.......x.+«.a...t:....�..
* E.G. Elev (ft) ' 4807.93 • Element ' Left OB " Channel • Right OB '
+ Vel Head (ft) rt 0.13 * Wt. n-Val. * 0.070 � 0.040 � 0.070 *
* W.S. Elev (ft) R 4807.80 * Reach Len. (ft) * �40.00 * 730.00 ' 820.00 *
� CYit W.S. (ft) * 4806.32 • Flow ArEa (9q ft) * 6350.80 • 1129.49 • 2309.34 *
R E.G. Slope (ft/ft) •0.000912 * Area (sq ft) ' 6358.88 * 1129.49 • 2309.34 *
* Q Total (cfs) '16700.00 * Flow (cfs) • 7796.93 * 5373.22 * 3569.86
� Top Wid[ri (fU ' 3159.93 " Top Width (fU • 2414�.59 * 129.00 * 676.33 *
R Vel Total (ft/s) � 1 JO * Av9. Vel. (ft/s) ' 1.23 * 4.72 • 1.55 •
* Max Chl Dpth (fU " 9.65 ` Hydr. Depth (fU * 2.63 * 8.76 * 3.75 •
* Conv. Total (cfsl '553081.9 � Conv. (cfs) *258223.9 *176629.1 *118228.9 *
R Length Wtd. (fU ' 761.44 k Wetted Per. (ft) * 2416.50 � 130.�� * 616.57 k
* Min Ch E1 (ftl � 4798.15 * Shear Qb/sq ft) ' 0.15 0.49 0.21
* Alpha • 2.87 + Stream Power (lb/ft s) • 0.18 � 2.32 * 0.33 *
* Frctn Loss (ft) " 1.46 ' Cum Volume (acre-ft) * 122.11 ' 35.07 * 79.16 �
* C a E Loss (ft) ' 0.06 * Cum SA (aczes) * ���Z1 � 5.57 * 26.98 *
4f+}iF�fhlki4YM1Rt41#ifRRt#i#R�Rxt4i1!}44YxfR#tflh##i#1£l4i4if£�fi#i11fhl4�11i1#ii##ifflif�fllf
warning: Divided flow computed for Chis cross-section.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greatez than 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was grea[er than 1.o ft (0.3 m) . between the current and previous cross
section. This may indicate the need for additional czoss sections.
Page 58
STVRAIN.rep
Note: Multiple critical depths were found at this location. The critical depth with [he lowest,
� valid,
water surface was used.
CROSS SECTION WTPUT Profile $base+l targe[ de
4>�.ltA4I1##**11�1FY#IAfh41�#'�ti4Rifk4i#iFht�li#iifRlt4Yiki1'.lYi44t1:Rk111111T1:IR#fYft111YhYAf14111
* E.G. Elev (ft) � 4800.99 ` Element • Left OB * Channel � Right OB "
* Vel Nead (ft) • 0.20 * Wt. n-Val. * 0.070 * 0.040 ' 0.070 `
r W.S. Eiev IfU * 4808.79 � Reach Len. (fU • 740.00 * 730.00 ' 820.00 *
* Crit W.S. (f[) � 4806.71 * Flow Area (sq EU * 4856.34 � 1258.11 * 1232.93 '
' E.G. Slope (ft/fU *0.000976 ' Area (sq ft) �' 4856.34 * 1258.11 ' 1232.93 *
* Q Total (cfs) �16�00.00 � Flow (cfs) * 7737.00 � 6605.58 ' 235�.43 �
* Top width (EU * 1674.97 * Top Width IfU * 1299.07 • 129.00 * Z46.90 t
* Vel Total (ft/s) • 2.27 • Avg. Vel. (ft/s) * L 59 � 5.25 * 1.91 *
* Max Chl Dpth (ft) * 10.64 " Hydr. Depth (f[) * 3.']4 '� 9.75 * 4.99 "
* Conv. Total (cfs) *534477.8 • Conv. (cfs) *247619.9 •211409.3 * 75446.6 *
* Length Wtd. (ft) • "152.48 * Wetted Per. (ft) R 1304.51 * 130.'77 + 251.89 �
• Min Ch E1 (ftl * 4798.15 * Sheai (lb/sq ft) * 0.23 � 0.59 � 0.30 *
' Alpha ' 2.44 a Stream Powei (lb/ft s) * 0.36 * 3.08 ' 0.5"] '
" Frctn Loss (fU ' 1.64 * Cum Volume (acre-ft) * 98.51 * 38.90 " 34.�"] *
' C & E Loss (ft) ' 0.11 * Cum SA lacres) * 42.14 + 5.67 * 8.16 �
xtR+�++a��+�.aritaiti+iiiR.xww.«w�+i�tt«a�sa�w+�+wwrr�rx:.:c+�+.x+�R�+i:+�«isar��rr,�+��iaF»:
Warning: Divided flow computed for this cross-section.
Warning: The velocity head has changed by more than o.5 f[ (0.15 m) . This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstieam conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greater than 1.0 fC (0.3 m) . between the current and previous cross
section. This may indicate the need for additional cross sections.
Note: Multiple critical depths were found at this location. The critical depth wi[h the lowes[,
valid,
water sur£ace was used.
CROSS SECTION
p RIVER: St. Vrain River
� REACH: FULL RIVER RS: 53240
INPUT
Desaiption: The topographic information for this cross-section was taken from
the ACOE HEC model.
Station Elevation Data num= 46
Sta Elev Sta Elev Sta Elev Sta Elev Sta Hlev
.+:+t::+.::..::,.....:...:......++.:..a..++.....+..+:...+..+..�,�..i.:��+x.Rii.�.
1000 481'/.25 1291 4816.05 1364 4809.05 1433 480'1.75 1454 4802.45
1524 4806.85 1566 4800.25 1586 4800.25 1593 4805.35 1630 4805.35
1661 4813.25 1'101 4805.05 1884 4801.45 7950 4800.05 3283 48�0.25
3535 4801.45 3"159 4802.65 3787 4805.95 382'1 4'198.15 3903 4798.15
3926 4804.05 3948 4802.85 4068 4802.55 4086 4800.65 4289 4840.65
4309 4803.25 4549 4804.35 4794 4807.35 5041 4808.05 5288 4807.95
5463 4808.65 565"! 4809.85 5844 4809.75 6037 4809.85 6223 4809.95
6354 4810.15 6497 4810.65 6652 4810.25 6821 4810.15 7080 4810.95
7250 4810.85 7426 4811.05 7535 4812.65 7567 4813.55 7576 4813.15
7595 4817.35
Manning's n Values num= 3
Sta n Val Sta n Val Sta n val
�x���i::�+:.:r,��:xtr:.+x.kwxk�+t++i�:r.��trt�+aw+
1000 .07 3787 .04 3926 .07
Hank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Erzpan.
3787 3926 820 B70 840 .1 .3
Blocked Obstruc[ions num= 2
Sta L S[a A Elev Sta L Sta R EleV
W++t*r++a+��a+:tart.�:xtt:�x.iwi�xR.�wx��xxx�xx+*
1000 3787 4805 4309 7595 4800
CROSS SECTION OUTPUT Profile #100 year
144+IlFfFlhk�I1}t#'RY4YiR}t#Y#11FRf#k!1###1#Yii41ffi1'.li11�1R#4t*f#!#if1f4Y41141f1if1111tf1f�1l44
a E.G. Elev (ft) ' 4806.40 * Element * Left OB * Channel * Right OB *
" Vel Head (ft) * 0.76 R Wt. n-Val. * 0.070 * 0.�40 * 0.070 *
i " W�S. Elev (ft) t a805.64 � Reach Len. (ft) * 820.00 * 870.00 * 840.00 *
Page 59
STVRAIN.rep
� � Crit w.S. (ft) ' 4805.64 • Flow Area (sq ft) * 1412.25 * 817.53 • 2070.13 �
* E.G. Slope (ft/Etl "0.006368 + Area (sq ft) ' 1412.25 * 817.53 * 207�.13
* Q Total Icfs) •16700.00 • Flow (cfs) " 1765.21 t 7900.91 � 7033.89 *
� Top Width (Et) " 3095.58 ' Top Width (EU ' 2229.81 * 137.41 ' 728.35 •
• Vel Total (ft/s) * 3.88 * Avg. Vel. (ft/sl * 1.25 * 9.66 * 3.40 *
* Max Chl Dpth (ft) ' 7.49 * Hydr. Depth (fU * 0.63 * 5.95 • 2.84 *
� Conv. Total (cfs) *209280.4 • Conv. (cfs) * 22121.1 " 99012.3 " 88147.0 •
• LengCh Wid. (ftl ' 846.06 ` We[ted Per. (ft) • 2230.20 * 138.88 � 728.66 "
* Min Ch E1 (ft) * 4798.15 � Sheaz (lb/sq fU * 0.25 * 2.34 ' 1.13 '
' Alpha ` 3.26 * S[Yeam PoweY (lb/ft 5) ' 0.31 * 22.62 " 3.84 *
* Frctn Loss (ft) ' 2.78 � Cum Volume (acre-fU ' 56.11 • 18.75 ' 37.93 '
' C & E Loss (fU " 0.78 ' Cum SA (aczes) * 37.76 * 3.34 ' 14.32 *
•r+rF.�rr««�.:t:.w�k�:a,::�:.��+a�.wr,w�rx:��+�ai.+»tr.�..+.r.�«;+w+.�.i..�w+�t+.H:x::�+ia.�
Warning: The energy eqvation could noC be balanced within the specified numbez of iterations. The
progzam selected the water surface that had the least amount of error between computed and
assumed values.
Warning: Divided Elow computed for this cross-section.
warning: The velocity head has changed by more than 0.5 f[ (0.15 m) . This may indicate [he need for
additional cross sections.
warning: The <onveyance ratio (upstzeam conveyance divided by downatzeam conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was greater [han 1.0 ft (0.3 m1 . hetween the current and previous cross
sec[ion. This may indicate the need for additional cross sections.
Warning: During the standard step iterations, when [he assumed water surface was set equal to critical
depth, the calculated water snrface came back below critical depth. This indica[es [hat there
is not a valid subcri[ical answer. The program defaulted to critical depth.
CROSS SECTION OUTPVf Profile pbasetl target de
..x::w..«.«..:.:.:.«:.......+«......x:�.•++..+a...:.:::.+.......i..•.w..�+.+++..++•x..:x:+«>.::
R E.G. Elev (ft) * 480"/.24 • Element * Left OB ' Channel * Right OB *
* Vel Head (fU * 1.30 ' W[. n-Val. ` 0.070 * 0.040 • 0.0"]0 '
� W.S. Elev (ft) * 4805.94 * Reach Len. (ft) • 820.00 * 870.00 ' 840.00 •
� Crit w.S. (fU * ` Flow Area (sq fU * 1064.74 * BSB.49 ' 1010 JO *
� E.G. Slope (f[/fU *0.008465 � Area (sq fU • 1064.74 * 858.49 ^ 1010.70 *
' Q Total (cfs) *16700.00 * Flow (cfs) * 1984.77 * 9810.14 � 4905.08 '
• Top Width (ft) • 1532.41 * Tap Width (fU * 1140.88 * 138.93 * 252.60 *
, F Vel Total (ft/s) * 5.69 ' Avg. Vel. (ft/s) * 1.86 * 11.43 � 4.85 *
* Max Chl Dp[h (fU ' "1.79 * Hydi. Depth (fi) * 0.93 * 6.18 * 4.00 *
� Conv. Total (cfs) '181509.2 * Conv. (cf5) • 21572.1 *106624.6 " 53312.5 •
* Length wtd. (ft) * 848.56 * We[ted Per. (fU * 1141.88 * 140.43 * 258.02 *
R Min Ch E1 (fU ' 4798.15 + Shear (lb/sq fU * 0.49 • 3_23 � 2.0� +
• Alpha * a.59 �' Stream Power (lb/ft s) * 0.92 * 36.92 ` 10.05 t
� FZctn Loss (ft) * 3.08 " Cum Volume (acre-ft) ' 48.21 * 21.16 " 12.95 *
' C & E Loss (fU * 0.32 ' Cum SA (aczes) ` 21.41 ' 3.42 �" 3.46 •
fiFYiffffllRttt#*!'FF1i[114Rf1iff144#iiiflRl�!#i14i4+�1�i4�#'f111f��.lfei��111fil1hl'Akf�i#f4i+#RihfY�1
Warning: Divided flow computed for this cross-section.
Warning: The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for
additional cross sections.
warnin9: The conveyance ratio (aps[xeam conveyance divided by downsixeam Conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
Warning: The energy loss was greatez than 1.0 ft 10.3 m) . between the current and previous cross
section. This may indicate ihe need for additional cross sections.
CROSS SECTION
RIVER: St. Vrain Rivez
REACH: FULL RNER RS: 52370
INPllT
Description: The topographic information for this cross-section was taken from
ihe ACOE HEC model.
Station Elevation Data num= 56
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
i�killf'.Yf1h1i1f111ff4kk1If111A4fR1�11II4�if1i1(1#i1Y11}1#1Y14f'.!*1#Y1fflt#*Y*1;1i4
1650 4873.05 7690 4811.05 1720 4809.05 1760 48U7.05 1760.1 4807.05
1772 4805.55 1809 4805.95 1861 4800.75 1995 4799.35 2237 4796.75
2478 4796.65 2594 4795.85 2843 4796.95 3092 4798.05 3214 4798.45
3244 4800.95 3�66 4796.35 3285 4796.35 3314 4798.85 3545 4799.85
3614 4800.35 3624 4801.55 3660 4796.75 3682 4795.55 3752 4795.55
3785 4797.25 3828 4803.65 3856 4800.05 4084 4799.25 4327 4799.65
� 4562 4800.45 4614 4804.05 4863 4804.35 5093 4805.15 5348 4807.65
Page 60
STVRAIN.rep
5583 4807.55 5842 4807.55 6121 4807.55 6363 4808.65 6595 4809.75
� i 6864 4810.15 �045 4810.75 7097 4810.75 7115 4809.�5 7132 4812.35
� 7138 4808.65 7160 4808.65 7180 4812.55 7197 4810.45 �364 4810.45
7523 4810.05 7686 4809.55 7782 4809.95 7821 482q.85 7835 4824.85
7835.1 4824.85
Manning's n Values num= 3
S[a n Val S[a n Val Sta n Val
.:+.......,++....:..««.+..«.ax...........:......
1650 .07 3624 .04 3828 .07
Bank Sta: Lefc Righi Lengths: Left Channel Right Coeff Contz. E�cpan.
3624 3828 0 0 0 .1 .3
Blocked Obstructions num= 2
Sta L Sta R Elev Sta L Sta R Elev
♦.t�*�+.�..RRir.w.����rt�..�..RRi�Krwarw«�.::.+.
1650 3624 4800 3828 7835.1 4800
CROSS SECTION OOTPUT Profile N100 year
•.r.w+i.tkrw�.t*:xrxxir.rrrr�a�+:��:x��ti+�Fi�i+t..:...r.�r*w���t.x.xRarr���rr+a�+r:irxx...r��a
* E.G. Elev (ft) * 4802 J6 " Elemen[ * Left OB R Channel � Right OB "
' Vel Head (fU * 0.16 * W[. n-Val. + 0.070 * 0.040 * 0.070 *
' W.S. Elev (ft) * 4802.60 * AeaCh Len. (ft) * + W •
• Crit W.S. (ft) � 4001.51 ` Flow Area (sq ft) • 4540.63 • 1060.40 ' 1864.24 *
* E.G. Slope (ft/ft) *0.002002 * Area (sq ft) + 4548.63 • 1060.40 * 1864.24 �
# Q To[al (cfs) •16700.00 � Flow (cfs) * 80�0.54 • 5440.51 � 3220.96 •
* Top Width (ft) • 2735.34 � Top Width (ft) • 1781.50 • 196.95 * 756.89 *
* Vel Total (ft/s) � 2.23 * Avg. Vel. (ft/s) * 1.�7 * 5.09 * 1.73 t
• Max Chl Dpth (fU * 7.05 * Hydr. Depth (ft) + 2.55 R 5.38 • 2.46 *
* Conv. Total (cfs) *373197.4 • Conv. (cfs) *180353.5 '120685.9 � 72158.0 �
' Leng[h Wtd. (ft) * * Wetted Per. (ft) • 1781.81 * 197.74 " 757.13 *
" Min Ch E1 (fU � 4795.55 * Shear (lb/sq ft) • 0.32 * 0.67 R 0.31 a
' Alpha x Z.ZO ' Stream Power (lb/ft s) * 0.57 * 3.41 * 0.53 *
* Ftctn Loss (ft) ' * Cum Volume (acre-ft) * * * x
* C & E Loss (ft) • * Cum SA (aczes) * � R «
k�x�#1ii*R1R+##tfixMlhYY4Mirt4it£t�A�ifllfi##W+#kftft�tifttflxlxiYl#�yARxR4lfkYii!!#!}R1Rfxlii##
/ warning: Divided flow computed for this cross-section.
a
CR0SS SECTION OUTPUT Profile qbase+l target de
..xx.....s:xx....+.«.xx..:........+.......w.:ww.........«.+....:......+++.�+xa...«....+.+a.....
• E.G. Elev (fU * 4803.85 � Element * Left OB * Channel * Right OB *
+ Vel Head (ft) • 0.25 + W[. o-Val. * 0.070 * 0.040 * 0.070 •
' W.S. Elev (ft) * 4803.60 * Reach Len. (ft) R • * •
* Crit W.S. �ft) * 4801.93 * Flow Area (sq fU * 4057.70 * 1260.70 * 332.35 '
* E.G. Slope (ft/ft) �0.002002 * Area (sq ft) • 4057.70 + 1260.70 + 332.35 *
' 4 Total (cfs) *16�00.00 * Flow (cfs) * 8995.90 * 7045.26 ' 658.84 '
* TOp Width (ft) • 1444.28 * Top Width (ft) w 1134.20 * 203.67 * 106.41 *
• Vel Total (ft/s) R 2.96 * Avg. Vel. (ft/s) * 2.22 ' 5.59 * 1.98 *
* Max Chl Dpch (ftl * 8.05 w Hydr. Depth (ft) * 3.58 * 6.19 � 3.12 •
� Conv. Total (cfs) *373196.3 * Conv. (Cfs) *201032.2 �157441.0 * 14923.1 *
� Length Wtd. (ftl ' * Wetted Per. (ft) * 1138.01 w 204.53 � 110.24 +
* Min Ch E1 Ift) � 4795.55 • Shear (lb/sq ft) + 0.45 � 0.77 * 0.38 t
• Alpha • 1.83 • Stream POwer (16/ft s) * 0.99 * 9.31 • 0.�5 *
R Frctn Loss (fU ` * Cum Volume (acre-ft) * + * *
� C 6 E Loss (ft) * • Cum SA (acres) + * * .
*il4ffa;;w4f4f�r4fY44t1#ii+f4t111�iYiiRi##f4ixlf!£s%*�k*Yii4flifilfxl#*Y#Wi*fl1144i+fkff�Yi#itk
Warning: oivided flow computed for this cross-section.
44i4#41i#itlRflF#kklMti111xY11i4i11#�h�k11F1Y#444#41}YiM1ix#Yi#4fiwiR1�1i4�*xfil
SUMMARY OF MANNING'S N VALUES
River:St. Vrain River
ii#tR4R11t#itt�ii4h+##ftti£f'.!F#iil4kkt'.lttfR�Rf11f1f4RYi*4#f4Rl:hfi
" Reach * River Sta. • nl * n2 * n3 * �
1fAflfi}4�Yf1flikATf�.!/ilfffYlk#Atk�.11lf#i1i*i##4#hlkfi#*iii*£iAfff#
•EXISTING LAKES "' 71599 * .035* .04" .035*
•EXISTING LAKES ' ']1254 * .035R .04' .035*
*EXISTING LAKES * 70988 * .035* .04• .035*
*EXISTING LAI(ES • �06"]3 •Inl Structt * �
*EXISTING LAXES R 70493 * .035� .04* .035'�
; aEXI5TING LAKES * 69651 * .035' .04* .035*
Page 67
STVRAZN.rep
•EXISTING LARES t 69589 • .035* .045* .035+
� *EXISTING LAKES * 69479 *Inl Struct* ` *
•EXISTING LAKES " 69314 ' .035' .045• .035"
�EXISTING LAKES * 6B798 r .035" .04* .035'
•EXISTING LAKES ' 67578 • .035' .04' .035+
`EXISTING LAKES ` 66768 * .035' .04• .035'
*EXISTING LAKES • 66055 � .035` .04* .035`
tEXISTING LAKES R 65190 * .035' .045' .035i
*EXISTING LAKES * 65125 "Inl Struct` * '
*EXISTING LAKES * 65050 * .035" .045' .035"
�I-25 to Junc[ion• 71�70 * .07' .04+ .07+
*Z-25 [o JunctionK �1�65 • .07' .04" .0�•
'I-25 to dunction* �1�35 * .0�" .04* .07"
'I-25 to JunC[ion* �1701 � .07' .04" .07*
�I-25 to dunction• 71634 * .0]W .04• .07"
. *I-25 to Junction• 71608 * .0�* .04* .07*
*I-25 to Junction' �1465 *Lat Struct* * *
'I-25 to JUnCtion' �1166 ' .0�' .04* .07"
'I-25 to dUnctiOn' 70728 ' .07* .04� .07*
iI-25 [o Junction� 70584 RLat Struct* ' *
*I-25 to Junction� 70235 * .07* .09• .07*
*I-25 to Sunction+ 69741 t .07* .04' .07^
•I-25 to JunC[ion� 69359 *Lat Struct* * •
RI-25 [o Junctiana 69293 • .07* .04� .07*
•L25 [o Junction� 68844 * .0�' .04• .07*
*I-25 [o JUnC[ion' 68234 • .07* .�9* .07'
•I-25 to Junction* 6�624 * .a7* .04' .07*
�I-25 to Junction• 67487 RLat Struct* * "
FI-25 to Junction' 66814 + .0�* .04+ .07^
*FULL RIVER * 65735 * .0�* .04• .07•
*PULL RIVER ' 64600 * .0�* .04• .07*
'FULL RIVER ' 69120 i .07' .04� .0�+
•FULL RIVER i 63640 " .07� .04" .07*
*FULL RIVER ' 63177.5 " .0�' .04• .07'
'FULL RIVER • 62715 ' .07' .04� .0�*
•FULL RIVER ' 59195 r .0�* .04* .07*
� 'FULL RIVER * 58575 Y .07* .04t .07k
'FULL RIVER 5�401 .07* .04• .07*
'FULL RIVER ` 56496 • .1• .04* .07�
'FULL RIVER * 56400 *BYidge ' � R
'FULL RZVER ' 56290 * .04• .04• .07+
"FULL RIVEk • 55330 • .07• .04* .07*
•FULL RIVER ' 53970 * .07• .04* .07�
*FULL RIVEA • 53240 * .07• .09• .07*
*FULL RIVER * 523�0 * .07* .09' .0��
�lfY#rt4fitiifilfYiltYfxfxlxlkl!!#k�i*�+1Wff1Yfl��iflfik#Rt4F#i1f1
if�fttt�4�;4ft�t�ftiftttiitiFl##iiY41Y1I#�xfl�ttflYYkYf#ii#4FxR4fiiiiiF+f41#Y41i
SUMMARY OF REACN LENGTHS
River: S[. vrain River
#f111f11k1YftYlxNfiA}A1ftt4t4Yi41kkFXR11xf4�1##�1irYl�tf���1#sifiY
' Aeach * River Sta. t Left * Channel * Right �
..++....:w...:...:......::.....+............•.�.:.:....�.......�.
REXISTING LAKES • 71599 * 345• 345* 345*
*EXSSTING LARES • 71254 R 266t 266' 266•
•EXISTING LAKES ' 70988 * 495' 995� 495`
*EXISTSNG LAICES " 70673 `Inl StLUct� * *
*EXISTING LAHES R 70493 ' 542* 542R 542�
�EXISTING LAKES ' 69651 * 495* 362* 362*
tEXISTING LAKES * 69589 • 275* 2�5* 275*
"EXISTING LAKES * 69479 *Inl S[ruct* * *
+EXISTING LAKES ' 69314 * 319• 516• 516*
'EXISTING LAKES ' 68798 t 683' 1220� 1112•
*EXISTING LAKES * 67578 * 684* 810• B15R
*EXISTING LAI(ES ' 66768 • 713' 713" 713�
•EXISTING LAICES ` 66055 " 3075• 865� 216`
•EXISTING LASCES * 65190 ' 140' 140• 140*
�EXISTING LAKES * 65125 *Inl Struct* ' •
*EXISTING LAKES * 65050 * OR 0• 0�
*I-25 to Junction* 71770 * S` 5* 5t
•I-25 [o Junction` 71765 • 30* 30+ 30R
*I-25 to Junction' 71735 • 67* 67� 67�
Page 62
STVRAIN.rep
�I-25 to JunctionR 71701 * 34k 34* 3q*
� •I-25 [o Junction* 71634 � 26* 26* 26w
*I-25 [o Junction� 71608 � 3�6* 440* 483*
*I-25 Co Junc[ion* 71465 *Lat Struct' * •
*I-25 [o Junction� 71168 � 376* 440k 463'
•I-25 Co Junction* 70728 • 800.5` 494* 504.5*
'I-25 to Junction' 70584 *Lat SCYuct* rt *
'I-25 [o Sunc[ion* 70235 � 800.5* 494t 504.5i
*I-25 [o Junc[ion* 69741 * 268.5' 448* 455*
*I-25 [o Junc[ion* 69359 •La[ Struct• � +
*I-25 to Junction* 69293 � 268.5• 449* 455i
'2-25 to Junction* 68844 + 341.5* 610` 556*
'I-25 to Sunction• 68234 * 341.5' 610* 556*
*I-25 to Junction' 6�624 t 684* 910t 815"
•I-25 to JunctionR 6748� *Lat Struct• * *
*I-25 [o Junction' 66814 * 1040* 1079' 1040•
*FULL RIVER • 65735 * 95" 1135* 1025*
*FULL RIVER � 64600 t 393.5� 480^ 405•
*FULL RIVER + 64120 F 393.5* 480* 405*
'FULL RIVER * 63640 * 490* 462.5� 415* �
'FULL RIVER * 63177.5 � 490* 462.5' 415*
•FOLL RIVER + 62�15 + 100• 3520* 100*
+FULL 2IVER * 59195 � 530* 680* 520*
`£ULL RIVER + 58515 * �80* 1114� 480*
`FULL RIVER * 57401 i 830* 905* 790*
*FULL RIVER * 56496 F 233* 206• 180*
•FULL RIVER * 56400 *Biidge ' i *
�FULL AIVER * 56290 * ��0• 960' 1165'
*FULL RIVER • 55330 * 890* 1360* 1550*
•FULL RIVER � 53970 � �40' �3�* 820*
+FULL RIVER * 53240 * 820* 870` 840*
'FULL RIVER � 52370 * 0* 0* 0+
�:.+«w+r.:..t+�+rt+a��..:��.axr�.k+.F:a+:..++x.at+�+..:.wr�x�rt;«
•xx.xxrt+3��r���++��i:+xx.�rxRw+�ixrrtwa:::rwx�rw�+ti+�:xxrww�rx+ix+:x..:.+r.t�+
,� SUMMARY OF CONTRACTION AND EXPANSION COEFFICIENTS
River. St. Vrain RiVer
•«:.:.r�ii��:+�:r,.:r:++xxit�t.::a::..x��.Rri+�:::::wx+i•
' Reach • River Sta. * ContL * E�an. *
x+r.wt.:.xrrt��i++s+a:.r+t:R.:ar:ix+�i.::..::..xw�+tta�:
*EXISTING LAKES * 71599 ' .1* .3'
*EXISTING LAKES * 71254 * .3* .5*
*EXISTING LAKES • 70968 w .3" .5*
�EXISTING LAKES * 70673 'Inl StrnCt' •
*EXISTING LAKES • 90493 ` .3� .5'
*EXISTZNG LAKES * 69651 t .3* .5"
•EXISTING LAKES ' 69589 " .3* .5*
*EXISTING LAICES * 69479 *Inl Stiuct' •
'EXZSTING LAKES * 69314 * .3' .5*
*EXISTING LAKES • 68798 * .3r .5+
•EXISTING LARES � 67578 R .1• .3*
iEXISTING LAKES • 66768 * .1` .3'
•EXISTING LAKES * 66055 • .1* .3*
*EXISTING LAI(ES * 65190 * .3* .5'
•EXISTING LAKES * 65125 *Inl S[ruct* �
•EXISTING LAKES * 65050 * .3" .5*
*I-25 to Sunction* 71770 * .3* .5•
*I-25 to Junction* 71965 * .3* .5"
�I-25 to JunCtion* 71735 * .3* .5*
�I-25 to Junction* 71701 • .3* .5'
•I-25 to JURCtion* 71634 + .3* .5�
"'I-25 to JunCtian^ 71608 * .3* .5*
"I-25 [o Junction* 71465 •Lat Struct* *
*I-25 to Junction* 71168 ' .3` .5*
RI-25 to Junction* 70728 R .3* .5*
*I-25 to Junc[ion* 70584 *Lat Siruct* +
*I-25 to 7unction* 70235 * .3* .5•
*I-25 to Sunction* 69741 * .3" .5�
�I-25 to Junction* 69359 *Lat Struct' �
*I-25 to Junction* 69293 * .3* .5*
*I-25 to Junction* 68844 * .1� .7R
RI-25 to JunC[ion* b8234 ^ .1* .3*
Page 63
STVRAIN.rep
�I-25 to Junction• 67624 * .1• .7'
� *I-25 to Junction" 67487 'Lat Siruct* '
*L25 to Sunction* 66814 * .1R .3'
•FULL RIVER * 65'135 * .1• .3'
�FULL RIVER * 64600 * .1` .3•
•FULL RIVER • 64120 t .3' .5'
*FULL RIVER " 63640 * .3" .5'
*FULL RIVEA * 631"1�.5 R .3' .5�"
'FULL RIVER " 62715 ' .3` .5•
•FULL RIVER * 59195 * .3' .5•
tFULL RIVER ' 58515 • .3R .5•
*FULL RIVER * 5'14U1 ` .3' .5'
*FOLL RIVER * 56496 * .3* .5*
"FULL RIVER R 56400 "Bridge ' "
*FULL RIVER " 56290 R .3' .5`
*FI7LL RIVER ' 55330 • .3* .5+
"PULL RIVER * 539�0 ' .1� .3`
'FULL RIVER • 53240 � .1• .3*
'FOLL RIVER ' 52370 • .1' .3•
trt��a.:.+t+ar+:r..:.�it�+r��r,rr+.�a��+�ry�t+:::t����w�+
Profile output Table - CHECICRA5
:+:..�.w•w:.::xx..�...:...:.�.k:..:........t..+.�...:...+wx:...:+::ar.x.:.x.a:..:..::+:..e....+.a.�x.:.:+:.
::t���ii��r:.::.�w�rrw«��++���t.axi..++��+.iir.�xxt�x�i+i�r���w+++++aawr���:�r:�.�i��rr�x:r,Rr.��:r�++a�x«+
��.�+��+ra:t..
* Reach * River Sta * Profile * Pzoude # Chl * Top Wdth Act * Conv. Total * Prof
Delta WS * Lett Sta Eff � Enc Sta L • Center Station x Enc Sta R * RghG Sta Eff * Min Ch E1 * Lef[ Stagn
+ Righ[ Stagn *
, , * � � (ft1 * Icfsl •
(ft) * (ft) * (fU * (ft) * (ft) • (ft) * (ft) � (fU `
(f{) '
Ykf4�tt� t4iffR�ft�iilfiifiRh�#�14ktYM1R�1lfi#f411RtTtti4ffY#f4lFiff4#i'FiiflllkilfYi1f11t#�llttYi+i41#Y1�Y
t%tRf:tfTiif�lflR�ti1ii11YYf11kl1f�1Y#efMM4lfkfaM#R}4i4Y4i#i4f+ftfkiiF414RTR�k44fiikY+tftfYY4f4iffYilYfil:t�k
YiM£tff#�₹fYk♦
' EXISTING LAKES • 71599 R 100 yeaz ' 0.00 * 798.10 * 54264.5 *
` 972.35 ' • 1376.50 * • 1770.45 * 4824.00 ' '
1� * EXISTING LAKES • 71599 * base*1 target de • 0.00 * 2.46 R 5.1 R
0.98 � 1'/]5.00 ' 1"/75.00 * 13']6.50 * 1858.00 ' 1'1"17.46 ' ' '
* EXISTING LAKES • 71259 * 10� year * 0.00 ` 567.44 • 38621.5 `
• 1508.69 * • 1789.00 * ' 2070.13 " 4824.00 * '
' EXISTING LAICES * 77254 ' base+l taiget de • 0.00 * 30.20 � 3187.4 *
0.91 * 2045.00 ' 2045.00 • 1789.00 * 2112.00 + 20'15.20 " 4824.00 * '
. k � • . x + �
x . • + � ♦ ♦ t
• EXISTING LAKES * 70988 ' 100 yeaz ' 0.09 * 442.00 � 30083.9 �
i 16"]0.00 " • 1651.50 • • 2112.00 • 4824.00 � �
' EXISTING LAKES * 70988 * base+l target de ` 0.15 " 202.00 • 28666.8 *
0.82 � 1910.00 ' 1910.00 • 7651.50 ' 2112.00 * 2112.00 * 4824.00 � •
t * : � t x • �
k y • • < < • •
* EXIST*NG LAKES ' �0673 4 * Inl Struct � . ` y ` t
y e i R t k � �
t k ! 1 f • f 1
+ EXISTING LAKES '" 70493 k 100 year * 0.10 " 437.66 * 29476.0 *
+ 1650.00 * * 1596.00 * ' 2087.66 * 4824.00 � *
� EXISTING LAKES ` 70493 t base+l target de + 0.11 • 271.95 • 37425.9 '
0.80 • 1820.00 * 1820.00 • 1596.00 * 2112.00 ' 2097.95 ' 4824.00 * •
+ i k page`64
STVRAIN.rep
* EXISTING LAKES ' 69651 � 100 year * 0.08 * 949.39 • 58637.7 *
' 1151.00 * * 1519.50 • ` 2100.40 ` 4824.00 * "
+
� EXISTING LAKES • 6%51 * base+l target de * 0.19 ' 304.21 ' 34232.4 *
0.62 * 1800.00 ' 1800.00 * 1519.50 * 2129.00 r 2104.21 * 4824.00 • '
,� * ..� + r • t +
' EXISTING LAKES ` 69589 * 100 year ` 0.15 ' 548.33 ' 26550."1 •
� 1299.80 ' R 126�.00 " ' 1968.33 * 4d24.00 * *
' EXISTING LAKES ' 69589 • base+l targe[ de ' 0.26 * 319.91 * 22155.7 �
0.32 ' 1650.00 * 1650.00 ' 1267.00 • 198"J.00 * 1969.91 * 4624.00 •
L * 1 i { ♦ 1 k
* EXISTING LAKES ' 694'19 * * Inl Struct � ' "
. : , + a « w +
* . � « « x * . * . { . + +
• EXZSTING LAKES ' 6931a ' 100 year * 0.07 * 533.86 ' 57528.4 *
* 1420.00 + ' 122"/.50 * ' 1953.66 * 4819.70 • *
< EXISTING LAKES ` 69314 • base+l CaLget de ' 0.08 * 399.15 ' 81903."/ +
1.00 "' 1560.00 "' 1%0.00 ` 1227.50 " 1987.00 * 1959.15 • 4879.70 • '
• EXISTING LAKES ' 68798 * 100 year • 0.09 * 540.07 ' 60553.3 *
* 1455.00 + * 1420.00 • ' 1995.07 " 4819.70 ` '
� �
� ` EXISTING LAKES ' 68998 * hase+l target de * 0.10 • 400.03 * 86485.9 •
� 0.98 ' 1600.00 * 1600.00 ' 1420.00 • zosz.00 • 20�8.03 * 4819.70 ' '
' EXISTING WKES * 675'/B * 100 year * 0.15 * 400.08 * 33482.3 '
* 2036.40 + * 2228.00 * * 2444.48 * 4819.70 * *
• EXISTING LARES " 6"1570 • base+l tar9et de * 0.14 * 363.03 � 62214.8 *
0.98 t 2100.00 + 2100.00 • 2228.00 ` 2528.00 • 2963.03 ` 4819."]0 � *
* EXISTING I.AICES • 66768 * 100 year ' 0.48 * 860.65 ' 60331."/ +
"' 1528.05 ` ' 7955.50 * � 2388.70 * 4819.70 * +'
• EXISTING LAI(ES * 66768 * base+l target de * 0.10 • 530.41 * 85281.3 *
0.98 * 1870.�0 * 18"/0.00 ' 1955.50 ^ 2402.00 � 2400.41 * 4819.70 * *
* x ; : • • * t ' � * t * •
R EXISTING LARES • 66055 ' 100 year ' 0.11 • 732.65 ' 43856.5 '
k 1085.79 * • 1452.50 • " 1818.44 R 4819 JO * *
• EXISTING LARES • 66055 * baseal target de * 0.16 * 372.79 + 52121.9 �
0.91 " 1450.00 * 1450.00 ' 1452.50 � 1829.00 * 1822.79 ' 4819.70 • �
� * � . . + + :
• EXISTING LAKES * 65190 * 100 year • 0.10 * 1095.76 "' 41734.4 "
* 1069.91 • � 1618.50 • * 2165.66 ^ 4819 JO * •
' Page 65
STVRAIN.rep
� EXISTING LAKES � 65190 ' base+l target de * 0.07 * 966.70 * 107650.3 •
' 0.99 * 1205.00 " 1205.00 • 1618.50 * 21'13.00 w 2171.70 * 4819 JO * *
. * . . . + � .
• EXISTZNG LARES " 65125 ' • Inl StYUCt • ' "'
s * � . + : • +
* EXISTING LAKES � 65050 * 100 year * 0.00 * 1107.28 * 1202434.0 •
' 9B9."]2 ' • 1553.50 � ' 2097.00 � 4812.00 * �
* EXISTING LAKES * 65050 * base+l target de * 0.01 ' 797.00 ' 1007408.0 *
0.43 t 1300.00 R 1300.00 • 1553.50 ` 2097.00 * 2097.00 • 4812.00 * *
* I-25 [o .7unction " 71770 " 100 year * 0.45 • 298.77 * 339501.9 *
* 994.44 * " 1138.50 * ' 1293.21 * 4822.00 i *
* I-25 to Sunction * 71970 • baseil [arget de * 0.45 * 27Z oo • 342278.4 *
0.09 * 1000.00 * 1000.00 * 1138.50 � 12'1'1.00 * 1277.00 • 4822.00 * •
� I-25 to Sunction * 71765 * 100 year * 0.51 + 301.31 * 30B798.6 '
` 1943.69 + ' 2079.00 * * 2245.00 * 4822.70 R *
* I-25 to Junction r 71965 * base+l target de * 0.52 * 269.00 * 293809.1 *
-0.03 ' 19"/6.00 * 19"/6.00 • 2079.00 * 2271.00 • 2245.00 * 4822.70 ' R
* � i R • + x
J . i t • i � : r
R I-25 to Sunction • "/1735 • 100 year * 0.52 * 323.22 * 302384.2 �
' 1887.78 ' " 2101.00 + * 2211.00 * 4822.34 * '
* I-25 to Sunction ' 71735 * base+l target de a 0.57 � 220.00 • 263883.8 •
-0.27 * 1991.00 * 1991.00 * 2101.00 R 22ll.00 + 2211.00 * 4822.34 * *
� � µ R R + * : t « { x * x
* I-25 to .7unction * 71701 R 100 year " 1.00 * 195.69 * 14fl917.5 *
• 1962.31 * " 2090.50 * * 2158.00 � 4821.95 ' *
* I-25 to Sunction * 71701 * baseal target de " 0.98 • 195.95 * 151422."/ *
0.06 * 1962.05 � 1879.00 * 2090.50 * 2206.00 * 2158.00 R 4921.95 � '
•
t Z-25 to Junction x 71634 * 100 year ` 0.33 * 391.93 * 485030.0 *
' 1878.07 � • 2064.50 * • 2270.00 * 4819.15 * +
•
• I-25 tD JunCtiOn * 71634 t base+l taYget de • 0.33 • 325.30 • 489083.0 *
0.24 * 1874.70 ` 1859.00 � 2064.50 * 2200.00 ' 2200.00 ' 4819.15 * `
+ � . . . . . .
. . . « . . . .
• I-25 [o Junction * 71608 ^ 100 year * 0.30 • 4D3.51 � 534440.4 '
• 1879.49 * " zp7q,50 � * 2283.00 * 4818.30 * •
• I-25 to Junction * 71608 � ^ base+l target de • 0.30 • 325.25 R 535298.5 •
0.24 * 1875.75 � 1858.00 ' 2074.50 � 2201.00 * 2201.00 " 4818.10 * '
; i � . x + . . . .
Page 66
STVRAIN.rep
k
' * I-25 to Junction " �1465 � ' La[ Struct * � •
* L25 [o Junction � 71168 ' 100 year * 0.33 • 560.�� * 980909.6 •
' 2002.93 ' " 2146.50 + � 2563.00 • 4818.20 * `
• I-�5 to Junction * �1168 t base+l target de ' 0.32 * 510.91 * 4850�3.8 *
0.25 * 1999.09 3 1933.50 x 2146.50 t 2510.00 " 2510.00 * 4818.20 * �
• I-25 to Junction * 70728 • 100 year * 0.42 � 736.61 * 365486.0 *
' 2129.39 * * 2219.50 k * 2866.00 � 4818.25 * *
I-25 to Sunc[ion � 70728 * base+l target de • 0.40 * 657.00 • 379696.3 * �
^ 0.33 * 2129.0� � 2129.00 " 2219.50 * 2�80.00 * 2780.00 * 4818.25 • *
r x � : t s x � ; + � + { i
• I-25 to Sunction ' �0504 • * Lat Struct • ^ *
* r R .. ♦ a h a ` t * � µ *
* I-25 to Sunction ' 70235 ' 100 year * 0.36 * 988.57 a 411529.7 *
" 20�9.43 + ' 2200.00 * * 3068.00 ' 4617.40 ' *
* I-25 to JunC[ion • �0235 • base+l target de * 0.34 ' 881.00 * 437994.0 `
0.43 * 2069.00 * 2069.00 * 2200.00 ' 2950.00 ' 2950.00 ' 491"].40 * '
�� x � t • • � a � • � � � «
* I-25 to Junction � 69�41 a 100 year * 0.39 * 1242.63 " 377565.0 •
• 2027.38 * ' 2181.00 * * 3270.00 • 4816.45 * *
* I-25 to Junction * 69741 ' base+l target de * 0.36 * 1118.55 * 405664.3 *
0.56 " 2011.45 � 2oos.00 ' 2181.00 ' 3130.00 f 3130.00 ' 4816.45 * *
" I-25 to Junction � 69359 * ' Lat Strvc[ " ' t
• � • ♦ i + � �
; � * a � • ` + * x ; • * �
* I-25 to dunction * 69293 " 100 year ' 0.41 * 1439.99 * 360510.1 *
^ 2037.01 * * 2159.00 ' * 347'].00 ' 4815.60 * +
♦
* I-25 to Junction * 69293 * base+l target de � 0.44 * 1043.44 * 327305.3 *
0.35 x 2030.56 � 2030.50 * 2159.00 + 30�4.00 * 3074.00 R 4B15.60 * �
.
' Z-25 to Junction " 68844 * 100 year r 0.43 * 1611.36 • 345262.3 +
* 2053.34 * • 2136.50 ` �' 3718.64 � 4814.75 * �
•
* I-25 to Junction R 68844 • base+l target de * 0.48 * 947.51 * 306617.0 �
0.13 * 2052.49 * 2052.00 * 2136.50 * 3000.00 * 3000.00 * 4814.75 k �
. * . . . . � .
f 4 i 1 Ir M 4 ♦
' I-25 [o Junction R 68234 * 100 year * 0.42 • 1"112.05 * 356435.3 +
Page 6'J
� STVRAIN.iep
� ' 1016.94 * * 1234.50 ` ' 2728.99 # 4874.00 * +
• I-25 [o Sunc[ion * 68234 * base.l target de * 0.39 * 1134.31 • 379896.2 �
0.32 ' 1015.69 ` 100�.00 ' 1234.50 ' 2150.00 ` 2150.00 t 4814.00 • *
� I-25 [o Junc[ion � 67624 • 100 year • 0.41 � 1560.42 * 356638.7 "
R 2546.08 * ' 2�10.00 ' ` 4228.12 w 4813.45 ` `
' I-25 to Sunction * 6�624 ' base+l target de * 0.42 * 1154.6� " 341987.6 `
0.33 * 2543.38 * 2528.00 ' 2710.00 ` 3750.00 * 3750.00 • 4813.45 * *
. « : . F �
" L25 to Junc[ion ' 6748"J " ' La[ Struct + * *
• I-25 to Junction * 66814 ' 100 year * 0.37 * 1573.28 • 397822.7 *
� 2402.41 • ' 260Z 50 * • 4408.12 • 4812.85 ' '
* I-25 to Junction • 66014 ' base+l target de * 0.37 * 1198.00 * 388451.6 '�
0.33 ' 2402.00 ` 2402.00 * 2607.50 ' 3600.00 * 3600.00 � 4812.85 ` *
• FULL RIVER ' 65735 * 100 year * 0.48 ' 1881.63 • 317066.6 "
* 2112.28 � ' 2221.00 ' * 9251.16 * 4811.95 * '
* FULL RIVER * 65'135 ' base+l target de • 0.45 ' 1019.00 • 328228.3 "
0.41 * 2161.00 � 2161.00 • 2221.00 � 318�.00 • 3180.00 " 4811.95 " '
� *
r * t .
* FULL RIVER * 64600 ' 100 year ` 0.38 • 1784.87 * 39531"/.8 *
t 1443.99 ' ' 1521.50 * • 3228.86 � 4810.85 � '
k
� FULL RIVER * 64600 " baseil target de • 0.39 ' 1377.0� * 380699.9 *
0.35 ' 1483.00 � 1483.00 t 1521.50 ' 2860.00 • 2860.00 ' 4810.85 < <
* FULL RIVER ' 64720 ' 100 yeai ' 0.40 * 1804.81 • 366643.0 •
' 134"/.19 ' ' 1439.25 * t 3152.00 ' 4810.20 * '
r FULL RIVER � 64720 ' base.l target de • 0.41 * 1402.00 k 358219.0 *
0.30 * 1398.00 * 1398.00 • 1439.25 * 2800.00 • 2800.00 • 4810.20 * *
♦ * + r + x • :
� FULL RIVER ' 63640 '� 100 yeaL * 0.39 ' 1748.36 ` 3�9777.8 *
+ 1243.64 " * 135'1.0� ' ` 2992.00 t 4809.55 • *
* FULL RIVER ' 63640 ' baseil Carget de • 0.43 * 143'/.00 � 335079.1 ^
0.14 � 1313.00 R 1313.00 • 1357.00 " 2750.00 � 2750.00 * 4809.55 * '
t * f } k 1 • A
h k f f f 1 k k
* FULL RIVER • 63177.5 • 100 yeax * 0.27 * 1758.46 • 557185.9 '
R 1320.54 " * 1372.25 " ' 3079.00 * 4807.67 x •
� FULL RIVER ` 63177.5 ' base+l target de � 0.25 ' 1752.50 � 582337.9 *
0.14 � 1326.50 F 1326.50 • 1372.25 • 3079.00 " 3079.00 • 4807.67 * *
k Page 68
STVFEAIN.rep
h • k � 1 k �
.. i 1 f ! # F i t
* FULL RIVER � 62715 • 100 year ` 0.28 ' 1768.03 * 529639.1 '
� 1343.9� * � 1387.50 * * 3112.00 • 4805.80 ' *
* FULL RIVER • 62715 • base.l targe[ de * 0.26 * 1768.42 563501.4
0.19 � 1343.58 `" 1340.00 ' 1387.50 ' 3112.00 ' 3ll2.00 * 4805.80 ' "
� FULL RIVER R 59195 * 100 year > 0.28 * 1704.12 • 561511.8 �
* 1288.30 * '� 2990.00 ' * 3069.0� � 4803.33 *
� FULL RNER * 59195 ' base+l target de * 0.24 * 1698.11 * 627403.3 *
0.40 ' 1299.00 * 1299.00 * 2990.00 • 3069.00 * 3069.00 * 4803.33 ' '
* FULL RIVER * 58515 r 100 year ' 0.19 • 1431.00 • 826300.9 •
* 2256.00 " " 3425.50 ` • 3687.0� * 4803.85 * *
R FULL RIVER • 58515 * base+l target de * 0.78 * 1286.00 * 853882.0 *
0.42 * 2256.00 ` 1620.00 F 3425.50 R 3592.00 t 3542.00 � 4803.85 * *
* FULL RIVER � 5"/401 * 100 yeai ' 0.25 + 1454.00 ^ 615066.9 •
' 2532.00 ' * 3163.00 ' * 3986.00 * 4803.00 � •
* FULL RIVER * 5"J401 ' base+l target de • 0.22 + 1454.00 * 709131.1 '
0.52 * 2532.00 * 2250.00 * 3163.00 ' 4049.00 * 3986.00 * 4803.00 ' *
� � . x : � . x : t R * w • �
* FULL RIVER * 56496 � 100 year * 0.19 ' 1641.75 * 626639.8 '
* 202�.00 • * 3534.50 ' ' 3721.00 • 4802.55 * •
• FULL RIVER + 56496 ' base+l CaLget de • 0.23 � 1075.00 * 539022.6 •
0.36 + 2565.00 * 2565.00 • 3534.50 • 3640.00 + 3640.00 R 4802.55 * �
` FULL RIVER • 56400 BR U * 100 year " 0.50 ' 190.39 ' 195095.1 *
* 3465.24 * * 3534.50 ' ' 3664.54 4802.55 w *
* FULL RIVEA ' 56400 BR U " base+l target de • 0.55 ' 166.19 ' 192'/01.0 *
0.14 * 3465.24 ^ 2565.00 • 3534.50 ' 3640.00 � 3640.00 * 4802.55 ' "
• � . i � • • .
* FULL RIVER * 56400 BR D ' 100 year ' 0.41 " 190.40 • 241366.5 *
` 3465.52 • * 3565.00 * * 3664.58 * 4802.15 • *
* FULL RIVER • 56400 BR D + base+l target de * 0.42 • 190.38 * 249338.0 *
0.20 * 3465.52 * 2552.00 � 3565.00 * 3665.00 • 3664.58 � 4802.15 * •
. { . + + . . .
� FULL RIVER ` 56290 * 100 year � 0.61 * 1140.89 * 244997.0 �
* 2048.79 " * 3565.00 ' � 3665.00 * 4802.15 * *
* PULL RSVEA { 56290 ' base+l taiget de * 0.49 * 1113.00 * 310454.0 *
0.94 � 2552.00 w 2552.00 ' 3565.00 ' 366S 00 * 3665.00 ' 4802.15 � •
•
* * ' Page 69 • x { '
STVRAIN.rep
� R FULL RIVER * 55330 k 100 year ' 0.34 F 2633.24 * 444039.1 '
3 1390.23 ' ' 3693.50 ' " 4473.00 ' 4�99.95 * t
* FULL RIVEA * 55330 * base+l [arget de � 0.34 • 1202.16 * 450538.0 •
1.04 * 245"1.00 * 245'1.00 t 3693.50 * 3796.00 � 3�96.0� + 4799."75 '� '
FULL RIVER ' 539"]0 * 100 year ' 0.26 � 3159.93 * 553081.9 *
' 124�.20 * . + 3920.50 ' * 4601.33 * 4798.15 * `
* FULL RIVER • 53970 � base+l targe[ de • 0.30 ` 1674.97 * 534477.8 •
1.00 ' 2541.00 ' 2541.00 ' 3920.50 " 4231.90 ' 4231.90 " 4798.15 ' t
A ' f i � f ♦ S
f h M ♦ A X Y Y
FULL RIVER * 53240 • 100 year ' 0.70 ` 3095.58 * 209280.4 +
* 1441.36 * + 3856.50 • ` 9654.35 � 4798.15 • *
* FULL RIVER - * 5324D * base+l target de � 0.81 ` 1532.41 * 181509.2 t
0.30 ' 2646.00 ' 2646.00 * 3856.50 ' 4178.60 * 4178.60 * 4998.15 * �
. � x w x � � *
� FULL RIVER ' 523"/0 * 100 year ` 0.39 • 2735.34 ' 373197.4 *
• 1842.50 * * 3726.00 * * 4593.06 � 4795.55 � +
* FULL RIVER ' 523�0 * base+l target de ` 0.40 " 1444.28 * 373196.3 *
1.00 * 2489.80 ' 2489.80 * 3726.00 ' 3934.80 * 3934.80 ' 4�95.55 * '
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Page 70
APPENDIX D — Maps
Existing Firm Maps with Proposed 100-Year Floodplain
CLOMR Work Maps
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