HomeMy WebLinkAbout20062294.tiff BOARD OF COUNTY COMMISSIONERS' SIGN POSTING
CERTIFICATE
THE LAST DAY TO POST THE SIGN IS S,Pr ZOO THE SIGN SHALL BE
POSTED ADJACENT TO AND VISIBLE FROM A PUBLICALLY MAINTAINED ROAD RIGHT-
OF-WAY. IN THE EVENT THE PROPERTY BEING CONSIDERED FOR A SPECIAL REVIEW
IS NOT ADJACENT TO A PUBLICALLY MAINTAINED ROAD RIGHT-OF-WAY, THE
DEPARTMENT OF PLANNING SERVICES SHALL POST ONE SIGN IN THE MOST
PROMINENT PLACE ON THE PROPERTY AND POST A SECOND SIGN AT THE POINT AT
WHICH THE DRIVEWAY (ACCESS DRIVE) INTERSECTS A PUBLICALLY MAINTAINED
ROAD RIGHT-OF-WAY.
I, Jacqueline Hatch, HEREBY CERTIFY UNDER P NALTIES OF PERJURY THAT THE SIGN
WAS POSTED ON THE PROPERTY AT LEAST0 IFFCEN•DAYS BEFORE THE BOARD
OF COMMISSIONERS HEARING FOR A.ua3 rz -t `1`I 3 IN THE AGRICULTURAL
ZONE DISTRICT. -�
0.�/ i- 2uct.AJt 'bi frt
Name of Person Posting Si n —Jacqueline Hatch
Signature of Person Posting Sign
STATE OF COLORADO
)ss.
COUNTY OF WELD
The foregoing instrument was subscribed and swor ¢ JW y of_2006.
WITNESS my hand and official seal. 5J;O(AAi'• —1
•
Notary Public
Notary Public OF CO.eaPp
My Commission Expires: c7
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Page 1 of 1
Esther Gesick
From: Brian Varrella
Sent: Tuesday, October 03, 2006 1:11 PM
To: Esther Gesick
Cc: Jacqueline Hatch; David Bauer
Subject: RE: Copart AMUSR-1493
Attachments:(1493 Copart drainage#1.pdj)1493 Copart Checklist#1.xls
Esther,
Jacqueline Hatch asked me to forward all correspondence w.r.t. historical drainage to you for the
Copart site. I have attached my review memorandum from June 21, 2006 to this message as a PDF
document. I have also attached the drainage checklist that was sent out with the memorandum on the
same day.
The only e-mail I have on record is from June 27, 2006, and it does not address historical drainage
items. If you have any questions, please contact me or Dave Bauer(ext. 3739).
Thanks, and have a good day.
Brian
From: Jacqueline Hatch
Sent: Wednesday, September 27, 2006 3:34 PM
To: Brian Varrella
Cc: Glen Droegemueller
Subject: Copart AMUSR-1493
Brian,
Esther with the Clerk to the Board is looking for all the email correspondence regarding the
historical drainage on the Copart site. The emails need to be included in the file as exhibits
can you please send a copy over to Esther as soon as possible. If you have any questions let
me know.
Thanks,
Jacqueline
;34 ,.
I v (fyJ j
AA 'W
10/5/2006
WELD COUNTY DRAINAGE REPORT CHECKLIST
Name: Copart Auto Auctions Plan Date: April 28,2006 from North Star Design
Location: W of WCR 27,1/4 mi.N of WCR 4 Rev.Dale: June 21,2006
Case a: Amt./SR-1493 Rev.By: Brian K.Verrella,P.E.(Public Works)
Comment HeadingsAdequately Attention
Required Comments
I. General Location and Description
A. Location
1.Township,Range,Section,%-Section X
2.Local streets within and adjacent to the development X
3.Major open channels,lakes,streams,irrigation and other
water resource facilities within and adjacent to proposed X
development
4.Names of surrounding developments including jurisdiction
(municipalities)
B. Description of Property
1. Area in acres X
2. Ground cover X
3. Major open channels and ownership X
4. General project description X
5. Irrigation facilities and ownership information X
6. Groundwater characteristics where applicable X
7. Vicinity map with appropriate scale and properly clearly X Please revise to show theproject site to an appropriate scale.
delineated.
C. Stamp,Signature,and Date
1. The drainage report is stamped,signed,and dated by a Please provide a stamp,signature,and date in the Final
registered P.E.licensed to practice in the State of Colorado X Drainage Report from a registered P.E.licensed to practice in
the Slate of Colorado.
2. All submitted construction plan sheets are stamped,signed, Please provide a stamp,signature,and date on all construction
and dated by a registered P.E.licensed to practice in the State of X plan sheets from a registered P.E.licensed to practice in the
Colorado State of Colorado.
II. Drainage Basins and Sub-Basins
A. Major Basin Description
1.Reference to Weld County Master Drainage Plan(s)where X
applicable
2.Major basin drainage characteristics X
3.Identification of all irrigation facilities within 200 ft of the X Please show existing contours on all contributing flow areas
property boundary offsite,and for a minimum of 200 ft from the property boundary.
B. Sub Basin Description
1.Historic drainage patterns on the subject property and X Adjacent contributions have not been identified.
adjacent properties I 2properly
.Off a drainage flow patterns and impacts on the subject X 100-year offsite flows must be managed through the site.
M.Drainage Design Criteria
A. Discussion of the optional criteria/deviation from Weld
County CODE X UD&FCD criteria shall be used in Weld County.
B. Development Criteria Reference and Constraints
1.Discussion of previous drainage studies(i.e.project master
plans)for the subject property that influence or are influenced by X
the proposed drainage design for the site
2.Discussion of site constraints such as slopes,streets,utilities,
existing structures,and the proposed development or site plan X
impacts on the proposed drainage plan
C. Hydrologic Criteria
1.Identify design rainfall(source of design storm depth X City of Greeley IDE curves show up in the Appendix and must
information,NOAA Atlas,UD&FCD maps,etc.) be identified in text.
2.Identify design storm recurrence intervals X All proposed pipes shall pass the 10-yr storm.
3.Identify runoff calculation method(s)and any computer models X
4.Identify detention discharge and storage calculation method(s) X
and computer models
5.Discussion and justification of other criteria or calculation X
methods used
D. Hydraulic Criteria
1.Identify various capacity County References I X 1
Weld County Public Works Page 1 of 2
Change of Zone Drainage Report Checklist Form Updated 01-27-20X6
Comment Headings Adequately Att entionComments
Addressed Required
2.Identify detention outlet type X Outlet must be resized to release the 5-year historic discharge.
as•er Weld Count CODE 24-7-130 D.
3.Identify check/drop structure criteria used X Riprap for the rundown at the detention pond outlet must have
sizin•calculations to show a stable channel desi•n.
4.Discussion of other dreina•e facili design criteria used X -
• IV. •reins• - Patti •,.I•n
A. General Cone•t
1.Discussion of contest and t •ical draina.e•attems X
2.Discussion of compliance with off-site runoff considerations X Offsite contributions have not been addressed.
and constraints
3.Discussion of the content of all tables,charts,figures,or X City of Greeley IDF curves not discussed
drawin•s.resented in the re..rt
4. •iscussi.n.(anlici•.4•an• . ...,e• •rains•: .aaerns X•
B. S. ISc Details
• 1.Discussion of compliance with drainage criteria(street,inlet, % Inlet and pipe capacity calculations are not provided in the
and•i.e ca•acities,etc. resort to su..ort the selection of outlet features.
2.Discussion of drainage problems encountered and solutions at
specific design.Dints
■ See above. Also must provide a detention pond design
3.Discussion of detention storage and outlet design X consistent with UDBFCD methodology. The current pond
design is too small,and must be recalculated to comply with
Weld Count CODE 24-7-130 D.
4.Discussion of maintenance access and aspects of the design X Not discussed. Please address.
A. Compliance with Weld County CODE. X See previous comments.
B. Cralna•0 cone•t
1.Effectiveness of drainage design to control damage from X See previous comments
storm runoff
2.Influence of proposed development on any applicable Weld X
Coun Master Drainage Plan recommendations
3.Identification of and written approval of affected irrigation
company or other property owner(s). Weld County may require Release to neighbors on the West from the detention facility
that the applicant provide evidence that offsite impacted X was not approved by the Cottonwood Water Ski Club,LTD.
jurisdictions have been notified of the proposed drainage plans
and.otential im•acts.
VI. References
A. Reference all criteria and technical information used XII
VII. •l• dices
A. Hydro'.•Ic Computations
1.Land use assumptions re•ardin•ad acent•ro.erties X Offsite contributions have not been addressed.
2.Initial and major storm runoff computations at specific design X See previous references to Weld County CODE.
ints
3.Historic and fully developed runoff computations at specific X Same as previous
design•.ints
B. H draullc Computations
1.Culvert sizing % All pipes must be supported by an HOS-6.HY-8,HEC-RAS,
CulvertMaster,or similar ana sis.
2.Storm sewer sizin• X
ileitarffi• a %
4.Storm inlet sizin• a X 6.O.en channel sizin• X Please sus• —
heck•am an•/•r•r••s . e .—� X Please sus. —
8.Detention pond area/volume capacity and outlet sizing % Please revise for compliance with Weld County CODE
24-7-130 D.
9.Erosion control features X Please su...
10.Changes to Calculation Methods—if applicant/design
engineer modifies any portion of UDBFCD spreadsheets used for
hydrologic or hydraulic calculations,the applicant/design
engineer shall identify all changes to calculation assumptions or X Please use UDBFCD criteria for drainage design.
computer programs as to type of change and specific factors that
were modified.
Weld County Public Works Page 2 of 2
Change of Zone Drainage Report Checklist Form Updated 01-27-2006
WELD COUNTY DRAINAGE REPORT CHECKLIST
Name: Coped Auto Auctions Plan Date: April 28,2006 from North Star Design
Location: W of WCR 27,1/4 mi.N of WCR 4 Rev.Date: June 21,2006
Case#: AmUSR-1493 Rev.By: Brian K.Varrella,P.E.(Public Works)
Comment Headings Adequately I Attention I Comments
Addressed Required
I. General Location and Description
A. Location
1.Township,Range,Section,'A-Section X
2.Local streets within and adjacent to the development X
3.Major open channels,lakes,streams,irrigation and other
water resource facilities within and adjacent to proposed X
development
4.Names of surrounding developments including jurisdiction
(municipalities)
B. Description of Property
1. Area in acres X
2. Ground cover X
3. Major open channels and ownership X
4. General project description X
5. Irrigation facilities and ownership information X
6. Groundwater characteristics where applicable X
7. Vicinity map with appropriate scale and property clearly X Please revise to show the project site to an appropriate scale.
delineated.
C. Stamp,Signature,and Date
Please provide a stamp,signature,and date in the Final
1. The drainage report is stamped,signed,and dated by a X Drainage Report from a registered P.E.licensed to practice in
registered P.E.licensed to practice in the State of Colorado
the State of Colorado.
2. All submitted construction plan sheets are stamped,signed, Please provide a stamp,signature,and date on all construction
and dated by a registered P.E.licensed to practice in the State of X plan sheets from a registered P.E.licensed to practice in the
Colorado State of Colorado.
II. Drainage Basins and Sub-Basins
A. Major Basin Description
1.Reference to Weld County Master Drainage Plan(s)where X
applicable
2.Major basin drainage characteristics X
3.Identification of all irrigation facilities within 200 ft of the % Please show existing contours on all contributing flow areas
property boundary offsite,and for a minimum of 200 ft from the property boundary.
B. Sub-Basin Description
1.Historic drainage patterns on the subject property and adjacent X Adjacent contributions have not been identified.
properties
2.Off-site drainage flow patterns and impacts on the subject X 100-year offsite flows must be managed through the site.
property
•
ill.Drainage Design Criteria
A. Discussion of the optional criteria/deviation from Weld X UD&FCD criteria shall be used in Weld County.
County CODE
B. Development Criteria Reference and Constraints
1.Discussion of previous drainage studies(i.e.project master
plans)for the subject property that influence or are influenced by X
the proposed drainage design for the site
2.Discussion of site constraints such as slopes,streets,utilities,
existing structures,and the proposed development or site plan X
impacts on the proposed drainage plan
C. Hydrologic Criteria
1.Identify design rainfall(source of design storm depth X City of Greeley IDF curves show up in the Appendix and must
information,NOAA Atlas,UD&FCD maps,etc.) be identified in text.
2.Identify design storm recurrence intervals X All proposed pipes shall pass the 10-yr storm.
3.Identify runoff calculation method(s)and any computer models X
4.Identify detention discharge and storage calculation method(s) X
and computer models
5.Discussion and justification of other criteria or calculation X
methods used
D. Hydraulic Criteria
1.Identify various capacity County References I X
Weld County Public Works Page 1 of 2
Change of Zone Drainage Report Checklist Form Updated 01-27-2006
Comment Headings Adequately Attention Comments
Addressed Required
2.Identify detention outlet type X Outlet must be resized to release the 5-year historic discharge,
as per Weld County CODE 24-7-130(D).
3.Identify check/drop structure criteria used X Riprap for the rundown at the detention pond outlet must have
sizing calculations to show a stable channel design.
4.Discussion of other drainage facility design criteria used X
j IV. Drainage Facility Design
A. General Concept
1.Discussion of concept and typical drainage patterns X
2.Discussion of compliance with off-site runoff considerations X Offsite contributions have not been addressed.
and constraints
3.Discussion of the content of all tables,charts,figures,or
X City of Greeley IDF curves not discussed
drawings presented in the report
4.Discussion of anticipated and proposed drainage patterns X
B. Specific Details
1.Discussion of compliance with drainage criteria(street,inlet, X Inlet and pipe capacity calculations are not provided in the
and pipe capacities,etc.) report to support the selection of outlet features.
2.Discussion of drainage problems encountered and solutions at
specific design points
See above. Also must provide a detention pond design
3.Discussion of detention storage and outlet design X consistent with UD&FCD methodology. The current pond
design is too small,and must be recalculated to comply with
Weld County CODE 24-7-130(O).
4.Discussion of maintenance access and aspects of the design X Not discussed. Please address.
V. Conclusions
A. Compliance with Weld County CODE. X See previous comments.
B. Drainage concept
1.Effectiveness of drainage design to control damage from storm X See previous comments
runoff
2.Influence of proposed development on any applicable Weld %
County Master Drainage Plan recommendations
3.Identification of and written approval of affected irrigation
company or other property owner(s). Weld County may require Release to neighbors on the West from the detention facility
that the applicant provide evidence that offsite impacted X was not approved by the Cottonwood Water Ski Club,LTD.
jurisdictions have been notified of the proposed drainage plans
and potential impacts.
VI. References A. Reference all criteria and technical information used X
VII.Appendices
A. Hydrologic Computations
1.Land use assumptions regarding adjacent properties X Offsite contributions have not been addressed.
2.Initial and major storm runoff computations at specific design X See previous references to Weld County CODE.
points
3.Historic and fully developed runoff computations at specific X Same as previous
design points
B. Hydraulic Computations
1.Culvert sizing X All pipes must be supported by an HDS-5,HY-8,HEC-RAS,
CulvertMaster,or similar analysis.
2.Storm sewer sizing X
3.Street capacity evaluation X
4.Storm inlet sizing X
6.Open channel sizing X Please support with calculations.
7.Check dam and/or drop structure sizing X Please support with calculations.
8.Detention pond area/volume capacity and outlet sizing X Please revise for compliance with Weld County CODE
24-7-130(D).
9.Erosion control features X Please support with calculations.
10.Changes to Calculation Methods—if applicant/design
engineer modifies any portion of UD&FCD spreadsheets used for
hydrologic or hydraulic calculations,the applicant/design X Please use UDBFCD criteria for drainage design.
engineer shall identify all changes to calculation assumptions or
computer programs as to type of change and specific factors that
were modified.
Weld County Public Works Page 2 of 2
Change of Zone Drainage Report Checklist Form Updated 01-27-2006
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