HomeMy WebLinkAbout20160652.tiff RESOLUTION
RE: APPROVE LICENSE AGREEMENT FOR STIPULATIONS REGARDING BRIDGE
50.5/39A REPLACEMENT AND AUTHORIZE CHAIR TO SIGN - PUBLIC SERVICE
COMPANY OF COLORADO
WHEREAS, the Board of County Commissioners of Weld County, Colorado, pursuant to
Colorado statute and the Weld County Home Rule Charter, is vested with the authority of
administering the affairs of Weld County, Colorado, and
WHEREAS, the Board has been presented with a License Agreement for stipulations
regarding bridge 50.5/39A replacement between the County of Weld, State of Colorado, by and
through the Board of County Commissioners of Weld County, on behalf of the Department of
Public Works, and Public Service Company of Colorado, commencing upon full execution of
signatures, and ending with further terms and conditions being as stated in said license
agreement, and
WHEREAS, after review, the Board deems it advisable to approve said license
agreement, a copy of which is attached hereto and incorporated herein by reference.
NOW, THEREFORE, BE IT RESOLVED by the Board of County Commissioners of Weld
County, Colorado, that the License Agreement between the County of Weld, State of Colorado,
by and through the Board of County Commissioners of Weld County, on behalf of the Department
of Public Works, and Public Service Company of Colorado, be, and hereby is, approved.
BE IT FURTHER RESOLVED by the Board that the Chair be, and hereby is, authorized
to sign said license agreement.
The above and foregoing Resolution was, on motion duly made and seconded, adopted
by the following vote on the 22nd day of February, A.D., 2016.
BOARD OF COUNTY COMMISSIONERS
WELD COUNTY, COLORADO
ATTEST: dit4 J Mike Freeman, Chair
Weld County Clerk to the Board
EXCUSED
' Sean P. Conway, Pro-T�1/im
BY: (
D ty Clerk to the oardI + �` �t I0„,/
E�/� ulie A. Cozad
A. . ' • ED AS . M: ... ►`CUSED
' �: rbara Kirkmeyer
�Coun y Attorney
�f Steve Moreno
`-�Date of signature: 1e1
2016-0652
CC::?t,,DalIS EG0073
1861 MEMORANDUM
-
\ TO: Clerk to the Board DATE: February 16, 2016
tAirird-UN Y <-1
FROM: Mike Bedell, Public Works Department
SUBJECT: Agenda Item
RE: Bridge 50.5/39A Replacement
License Agreement with Xcel Energy.
Attached are two original agreements. Please return one signed original to Public Works.
RECEIVED
FEB 17 2016
WELD COUNTY
COMMISSIONERS
M:Nrnnci&kOENDA memosWyenda-Curtis.doc
2016-0652
e6-700-732�z'Z.
•
BOARD OF COUNTY COMMISSIONERS
REVIEW/WORK SESSION REQUEST
RE: Bridge 50.5/39A Replacement—Xcel Energy License Agreement
DEPARTMENT: PUBLIC WORKS DATE: 2/01/2016
PERSON(S)REQUESTING: Don Dunker(County Engineer).Michael Bedell (Senior Engineer) '
Brief description of the problem/issue:
Existing Bridge 50.5/39A is in poor condition and needs to be replaced. The existing County right-of-way in
this area is only 30' wide and an additional 10' is required to properly construct a new bridge. Within this
proposed 10' right-of-way acquisition is a 2" diameter high pressure gas line owned by Xcel Energy (Public
Service Company of Colorado)and located within their exclusive utility easement
Prior to acquiring the additional. right-of-way Xcel Energy requires that the County enter into a License
Agreement which stipulates certain conditions and construction requirements to ensure their gas line will not be
adversely impacted by the bridge replacement. Public Works staff and County Attorney staff have reviewed the
License Agreement and feel that it is appropriate and justified for this situation. .
Recommendation to the Board:
Public Works recommends approval of the attached Xcel Energy License Agreement. After the License
Agreement has been completed, Public Works staff can proceed with acquisition of the right-of-way and
temporary construction easements required for construction of a new bridge. The goal is to commence
construction of the new bridge utilizing County crews in October,2016.
Approve Schedule.
Recommendation Work Session Comments
Mike Freeman,Chair Ir
•
Sean P.Conway,Pro-Tem C(y '��/ -
Julie A. Cozad — c 'r
Barbara Kirkmeyer p _
Steve Moreno is GA
Attachments: Xcel Energy(Public Service Company of Colorado)License Agreement
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Licensee:Weld County Public Works Department File With Document#: 166280& 166281
Investigation#: 2015.034 Line No.2"DR Kersey Agent:Jesse Valleios Engineer: Rob Hill
Lateral Plat No. Section 32 Twp 5N Rge 65W
LICENSE AGREEMENT
rol
This LICENSE AGREEMENT("License") is made this 3 day of February, 2016 by and between PUBLIC
SERVICE COMPANY OF COLORADO, a Colorado Corporation hereinafter called the"Licensor,"and Weld County,
a body corporate and politic of the State of Colorado, on behalf of the Weld County Public Works Department,
hereinafter called the "Licensee." Both Licensor and Licensee together are sometimes hereinafter called the
"Parties?
RECITALS
A.The Licensor is the easement owner of certain real property("the Property"),and desires to protect and preserve
the utility facilities located thereon and the future use of said real property which is more particularly described as
follows:
(Exhibit A, attached hereto and made a part hereof)
B. Licensee desires to construct a bridge ("Licensed Facility") in, under, or along portions of the Property as more
particularly shown on Exhibit B,attached hereto and made a part hereof,and desires to obtain Licensor's permission
therefore. Licensee intends to purchase Right-of-Way(ROW)from the fee owner of the parcel which is encumbered
by the Property, and the purpose of this License is to-describe the conditions upon which the Licensor consents to
the construction of the Licensed Facility within said parcel.
AGREEMENT
NOW, THEREFORE, in consideration of the foregoing, and for other good and valuable consideration, the receipt
and sufficiency of which is hereby acknowledged,the Parties agree as follows:
(1) The Licensor hereby grants to the Licensee, its successors, and permitted assigns, with respect to
such title and interest as the Licensor may have in the Property, and upon the terms and conditions hereinafter
stated, the permission and right to construct, maintain, operate, repair, inspect, remove, and replace the Licensed
Facility in,on,under,or along the Property.Such construction shall be located,undertaken and completed as shown
on Exhibits B, C and D, attached hereto and made a part hereof by this reference. If the Licensee's construction
requires any deviation in any manner from the Exhibits,the Licensee shall notify and obtain written approval for any
changes from the Licensor in advance of any construction.The Licensee shall prepare and submit to the Licensor
as-built Exhibits depicting all deviations from the original Exhibits no later than thirty (30) days after completion of
construction.
(2) This License does not convey an interest in real property.
(3) The Licensor intends to use the Property for all purposes in connection with electric power generation,
transmission,or distribution and/or natural gas gathering,storage,transmission, or distribution,and the rights herein
granted to the Licensee for the use of the Property are subject to the rights of the Licensor to use the Property for
such purposes,which rights the Licensor hereby expressly reserves.
(4) The Licensed Facility shall not interfere with or endanger Licensor's utility facilities or use of the
Property. In the event that the Licensee's use of the Property should, in the reasonable judgment of the Licensor,
constitute a hazard to the Licensor's utility facilities or the general public, the Licensor may require immediate
removal, relocation, or modification of the Licensed Facility to eliminate such interference or hazard, and may
suspend the Licensee's right to use the Property under this License until such removal, relocation, or modification is
completed.
(5) This License is issued subject to any prior licenses, easements, or leases granted by the Licensor for
Page 1 of 4
improvements of other parties. The Licensor reserves the right to license others to install improvements in, on,
under, or along the Property provided that same shall not interfere unreasonably with Licensed Facility herein
authorized.
(6) The Licensee shall not do or permit to be done any blasting above, underneath, or near facilities on the
Property without first having received prior written permission from the Licensor. Any blasting shall be done in the
presence of a representative of the Licensor and in accordance with directions such representative may give for the
protection or safety of the utility facilities located on the Property.
(7) The Licensee agrees that it shall not begin construction on the Property until the Licensee first provides
the Licensor with plans and specifications,and until such plans and specifications have been approved in writing by
the Licensor. The Licensee shall contact the Utility Notification Center of Colorado (1=800-922-1987) at least two
working days prior to the commencement of construction on the Property to arrange for field locating of utility
facilities. Further, if the Licensor has constructed electric transmission facilities on the Property, the Licensee shall
contact the Licensor's Electric Transmission Lines department at(303) 273-4669 at least four working days prior to
the commencement of construction on the Property,and unless waived by said department, no construction shall be
performed unless a representative of the Licensor is present at the time and place of construction.The instructions of
such representative relating to the safety of the Licensor's utility facilities will be followed by the Licensee,its agents,
and employees.Any damage to utility facilities on the Property as a result of the above construction shall be paid for
or repaired at the expense of the Licensee. These provisions shall also apply to any other work involving
construction,maintenance,operation,repair,inspection, removal,replacement,or relocation of the Licensed Facility
on the Property.
(8) The Licensee agrees and understands that if the Licensor has constructed natural gas gathering,
storage, transmission, distribution, or related facilities on the Property, the Licensee has been fully advised by the
Licensor that such natural gas facilities may now transport and may continue to transport natural gas at significant
pressures. The Licensee shall advise all of its employees, agents, contractors, and other persons who enter upon
the Property, pursuant to the provisions of this License,of the existence and nature of such natural gas facilities and
the danger and risk involved.
(9) The Licensee has been fully advised by the Licensor that the natural gas facilities of the Licensor, if
located on the Property, may be subject to cathodic protection by rectifier and related anode beds. The Licensor
shall not be liable for stray current or interfering signals induced in the Licensed Facility as a result of the operating of
the Licensor's cathodic protection system.
(10) The Licensee agrees and understands that if the Licensor has constructed electric power generation,
transmission, distribution, or related facilities on the Property, the Licensee has been fully advised by the Licensor
that such electric facilities may now transmit and may continue to transmit electric current at significant voltages,and
that the conductors on electric lines may not be insulated. The Licensee shall advise all of its employees, agents,
contractors, and other persons who enter upon the Property, pursuant to the provisions of this License, of the
existence and nature of such electric facilities and the potential danger and risk involved.
(11) (a) (i)As used in this License,the term"Claims" means(1) losses, liabilities, and
expenses of any sort, including attorneys' fees; (2) fines and penalties; (3) environmental costs,
including,but not limited to,investigation, removal, remedial,and restoration costs,and consultant
and other fees and expenses; and (4) any and all other costs or expenses.
(ii)As used in this License,the term"Injury" means(1)death, personal injury, or property
damage; (2) loss of profits or other economic injury; (3) disease or actual or threatened health
effect; and (4) any consequential or other damages.
•
(b) To the extent permitted by law, the Licensee covenants and agrees to at all times protect,
indemnify, hold harmless, and defend the Licensor, its directors, officers, agents, employees, successors,
assigns, parents, subsidiaries, and affiliates from and against any and all Claims arising from, alleged to
arise from, or related to any Injury allegedly or actually occurring, imposed as a result of, arising from, or
related to (1) this License; (2) the construction, existence, maintenance, operation, repair, inspection,
removal, replacement, or relocation of the electric power generation, transmission, or distribution; natural
gas gathering, storage,transmission, or distribution;or any other utility facilities located on the Property;or
(3)the Licensee's or any other person's presence at the Property as a result of or related to this License.
(c) The Licensee's duty to protect,indemnify,hold harmless,and defend hereunder shall apply to
Page 2 of 4
any and all Claims and Injury, including, but not limited to:
(i) Claims asserted by any person or entity, including, but not limited to, employees of
the Licensee or its contractors, subcontractors, or their employees;
(ii) Claims arising from, or alleged to be arising in any way from,the existence at or near
the Property of (1) electric power generation, transmission, distribution, or related facilities; (2)
electricity or electromagnetic fields; (3) natural gas gathering, storage, transmission, distribution,
or related facilities; (4) asbestos or asbestos containing materials; (5) any Hazardous Materials,
regardless of origin; or
(iii) Claims arising from,or alleged to be arising in any way from,the acts or omissions of
the Licensee, its sublicensees, invitees, agents, or employees.
(d) By agreeing to indemnification hereunder, the Licensee does not waive any provisions of the
Colorado Governmental Immunity Act.
(12) The Licensor shall use care not to damage the Licensed Facility in the construction, maintenance,
operation, repair, inspection, removal, replacement, or relocation of its utility facilities located on the Property, and
shall give reasonable notice to the Licensee of any of its activities in the immediate vicinity of the Licensed Facility.
(13) The Licensee shall construct the Licensed Facility so as to maintain the maximum distance between
the Licensed Facility and the Licensor's electric and/or natural gas facilities, or other facilities located on the
Property, allowable by the width and terrain of the Property pursuant to the terms of this License. if the Licensed
Facility crossed over or under the Licensor's electric and/or natural gas facilities,the crossing shall be as directed by
the Licensor. Notwithstanding the foregoing, minimum vertical and horizontal separations, as directed by the
Licensor, shall be maintained on all crossings and parallel encroachments.
(14) After initial construction of the Licensed Facility and thereafter, in the event of resettling,the Licensee
shall restore the surface of the Property by grading and compacting any irregularities,reseeding,and/or revegetation
as required to restore original conditions.
(15) The Licensee shall reimburse the Licensor for all costs involved for replacing and resetting any
section corners, quarter corners, ownership monuments, right-of-way markers, and reference points disturbed or
destroyed during the construction, maintenance,operation, repair,inspection,removal,replacement,or relocation of
the Licensed Facilities.
(16) A copy of this License shall be on the Property at all times during construction of the Licensed
Facility. The Licensee further agrees to provide, keep in full force and effect, and require of its contractors or
subcontractors,Workers'Compensation insurance pursuant to the laws of Colorado on all employees entering upon
the Property.
(17) This License is not transferable or assignable without the express written permission of the Licensor.
(18) The Licensee shall bear the sole obligation of obtaining such other authority or rights as the Licensee
may need in addition to the rights provided in this License for the construction of the Licensed Facility and use of the
Property.
(19) Except with the express written permission of the Licensor, the Licensee shall not bring onto the
Property, or permit to be brought onto the Property, any hazardous or toxic substance or material (including
petroleum) regulated by the State of Colorado, the United States government, or any other government authority
with applicable jurisdiction ("Hazardous Materials"). In the event the Licensee brings Hazardous Materials onto the
Property(with or without permission of the Licensor),the Licensee shall comply with all applicable laws,ordinances,
and regulations of federal, state, and local governmental agencies related to such Hazardous Materials. The
Licensee shall remove such Hazardous Materials from the Property immediately upon request of the Licensor. The
Licensee shall bear all costs related to environmental investigation, cleanup, removal, or restoration of any water,
air,groundwater, natural resources,soil, or land,including,but not limited to,the Property,incurred as a result of the
presence of such Hazardous Materials on the Property, or arising out of the acts or omissions of the Licensee, its
agents, sublessees, invitees, or employees.
(20) This License may be executed in two original counterparts,each of which shall be deemed an original
of this instrument.
Page 3 of 4
(21) Additional Terms, Conditions and Provisions: See Exhibits B, C and D, attached hereto and made a
part hereof
IN WITNESS WHEREOF, this instrument has been executed the day and year first above written.
PUBLIC SERVICE COMPANY OF COLORADO
I
By:
Richard J. ady, Manager
Siting and L nd Rights, R' t of Way & Permits
I1Cl�.
Agreed to and accepted by Licensee this 22 day of February, 2016.
ATTEST: d� G tordia BOARD OF COUNTY COMMISSIONERS
Weld •u ► Clerk to the Boa d WELDaCO�UNTTY, COLORADO
BY:
Deputy CI-/ tot e =oard � �, 1 / Mike Freeman, Chair FEB 2 2 2016
``- % PPROVED AS T• . . : � NCE:
APP�D A TO N. NG
Controller I red ci- or Department Head
APPR D AS T ORM: •r.. ,.�.
Director of General Services
County Attorney
Page 4 of 4 AD/6'605 'J
EXHIBIT A
DMSION Eastern ROW AGENT R.E.BIu. . - - DOC.NO.766260
LOCATION.SEl1,&thee 32,75N- DESCRIPTION AUTHOR John 8.Lambert PLAT/GR40 NO.
easy,eaP.NL.WNdCounty,CO AUTHORADDRESS 417S.Whlteomb Street, WO/JOICREG NO. 11603738 _.
Rcouins,c000321 P •
UBLIC SERVICE SERVICE COMPANY OF COLORADO EASEMENT
The undersigned Grantor hereby acknowledges receipt of good and valuable consideration from PUBLIC SERVICE
COMPANY OF COLORADO (Company), 1800 Larimer Street,Denver,Colorado 80202,in consideration of which
Grantor(s) hereby grants unto said Company, its successors and assigns, a non-exclusive easement to construct
operate,maintain,repair,end replace utility lines and all fixtures and devices,used or useful in the operation of said
lines,through,over,under,across,and along a course as said lines may hereafter constructed In the SE/4 of
•
Section a Township 5.N.Range j2&of the Mg Principal Meridian In the Comity of Weld State of Colorado,the
easement being described as follows:
' SEE EXHIBIT ATTACHED HERETO AND MADE A PART HEREOF
The easement is an.feet In width. The side boundary lines of the easement shall be lengthened and shortened as
necessary to encompass a continuous strip of not less than the above width at all points on Grantor's property .
crossed by the above described easement and extending to the boundaries of adjacent properties.',
Together with the right to enter upon said premises,to survey,construct, maintain,operate,repair,replace,control,
and use said utility lines and related fixtures and devices,and to remove`objects interfering therewith,including the
trimming of trees and bushes,and together with the right to use so much of the adjoining premises of Grantor during
surveying, construction, maintenance, repair, removal,,or replacement of said utility lines and related fixtures and
devices as may be required,to permit the operation of standard utility construction or:repair machinery. The Grantor
reserves the right to use and occupy the easement for any purpose consistent with the rights and privileges above
granted and which will not interfere with or endanger any of the said Company's facilities therein or use thereof.
Such reservations by Grantor shall in no event include the right to erect or cause to be erected any buildings or
structures upon.the easement granted or to locate any mobile homes or treler units thereon. In case of the
permanent abandonment of the easement,all right,privilege,and Interest granted shall terminate..
The work of Installing and maintaining said lines and fixtures shall be done with care, the surface along the
• easement shall be restored substantially to its original level and condition:' •
Signed this day of-7 %rIGC/ [!G 2013.
(Type or print name below each signature line with'oficlal flue If corporation,partnership,etc.):
GRANTOR
•
Eli Paul Betty L.P ul
3996131 - Pages 1 of 4
02/13/201402:30 PM R Fes:$28:00
Sieve Morena, Clark and Retarder, Weld County, CO
• �IIIM��1Nd7Flirfl�4�V��6+��p l�I' f�ll+it'��KtiJt PIDI
STATE OF-69LARABA,_New Mexico )
)ss.
COUNTY OF U7 �The foregoing instrument was acknowledged before me this 74 day of `for,B lf 6ac. 2013
by[Grantor name(s)from'above):
:// fa-/
,C3ey L.49a/
Witness my hand and official seat.
My commission Expires J—/r�0?O/ , i/./.gP /_�e�rt--
Notary Pu lac
•
02/61312014 02 Pages: RFee:$6,00
eteva Morena, Wark and Raeorder i,Wald rafmtv•
®IIIIII�aI�{'1F�a��lf�[;14#�kJ�'Hti$l��t��Vkaldsl4AA Il 111
•
T
EXIT A Sheet 1 of 2
Parcel 1 PE
A parcel of land,being a portion of that real property as described in Reception No.
1544946,to Bill Paul and Betty L.Paul,recorded April 6, 1970,Weld County Records,
lying in the Southeast One-quarter(SB V4)of Section 32,Township 5 North,Range 65
West of the 6th Principal Meridian,City of La Salle,Weld County,State of Colorado,
described as follows:
The north thirty(30)feet of said Reception No.1544946.
Said parcel contains 10840 square feet,more or less.
An illustration for this description is attached hereto and made a part hereof.
The author of this description is Mr:John S.Lambert,PLS 13212,a registered
professional land surveyor licensed to practice in the State of Colorado.The description
was written for Public Service Company of Colorado,and on behalf of Lambert Land
Consulting,LLC,on November,11 2013,under Job NumberL13-38,and is NOT to be
construed as representing.monumented land survey.
c '+//-0-2413
13212 4 � ;
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, / 'a VRVfcrOe•"O
L' vlE OF CO •
3995131 Pages: 3 of 4
02/13/2024 02:30 PM RFee:,$28.00 - - "
Steve Moreno, Clerk;and Recorder. Wald County, CO
EIIIMir1&Y7�n'r'Irl if l�L4l4YrL+h'��YI1Wi'rM'r�if VIIIIl
LAMBERT
LAND CONSULTING
O970.211.2190•(970.292.9890x417 S'Whitcomb Skta•Fbct Collioq CO80521avnrwrambedc.cm0 - -
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EXHIBIT A(CONTINUED)
DIVISION Eastern ROW AGENT R.EBlu DOC.NO. 168281
LOCATION SEM,Section 32,TON- DESCRIPTION AUTHOR John S.Lambert PIATIORID NO.. -
Ra6W,8°1 P,hL,Weld County,CO AUTHOR ADDRESS 4i7 S.Whitcomb Street, WOIJOICREG N0. 11893769
FL Collins,CO 80521
PUBLIC SERVICE COMPANY OF COLORADO EASEMENT
The'undersigned Grantor hereby acknowledges receipt of good and valuable consideration from PUBLIC SERVICE
COMPANY OF COLORADO(Company), 1800 Latimer Street, Deriver, Colorado, 80202, In consideration of which
Grantor(s) hereby grants unto said Company, Its successors and assigns, a non-exclusive easement to construct,
operate,maintain,repair,and replace utility lines and all fixtures and devices,used or useful in the operation of said
lines,through, over, under,across,and along a course as said lines may be hereafter constructed in the jjg1¢of
Section P.a,Township a Range§ &of the§ffi Principal Meridian in the County of Weld. State of Colorado,the
easement being described`as follows:
SEE EXHIBIT ATTACHED HERETO AND MADE A PART HEREOF
The easement is 13 feet In width. The side boundary lines of the easement shall be lengthened and shortened as
necessary to encompass,a continuous strip of not less than the above width at all points on Grantor's property
crossed by the above described easement and extending to the boundaries of adjacent properties.
• Together with the right to`enter upon said premises,to survey,construct,maintain,operate,repair,replace,control,
and use said utility Ones and related fifixtures ant devices,and to remove objects interfering therewith,Including the
trimming of trees and bushes/and together with the right to use so much of the adjoining premises of Grantor during
surveying, construction,maintenance, repair, removal,or replacement of said utility tines and related fixtures and
devices as may be required to permit the operation of standard utility construction or repair machinery. The Grantor
reserves the right to use and occupy the easement for any purpose consistent with the rights and privileges above
granted and which will not interfere with or endanger any of the said Company's facilities therein or use thereof.
Such reservations by Grantor shall In no event include the right to erect or.cause to be erected any buildings or
structures upon the easement granted or to locate any mobile home or trailer units thereon. In case of the
permanent abandonment of the easement,all right,privilege,and Interest granted shall terminate.
The work of Installing and maintaining said lines and fixtures shall be done with care; the surface along the
easement shall be restored substantially
/to its original level and condition.
Signed this 7 day of ./t/er+rP.h hit/ 2013.
(Type or print name below each signature line with official title if corporation,partnership,etc):
GRANTOR
Qila to� iurw/L�y r •
aniel J.Buderus J le . dews
3996 30 2/3/2014 02 3 Pages:
R1Fee:$26.00 -
bteVe Masco, clack end r Border, Weld,County, CO , !
mill Irv
'[ ,,1k:reorder
'U RI!OR E7licl.ihkkil i 0l III
STATE OF COLORADO,
COUNTY OF LA)eh, )
The foregoing instrument was acknowledged before me this croon day of /NA:/C044 et" 2013 _by[Grantor name(s)from above]:
bane e/ 3aien,c awl ' a-,..1:e 7juieeu.s
Witness my hand and official seal
My commission Expires Y ?d7-!q/ f. Qe �t
Notary Public
ROBERT E. BLU, II
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20104O14057
MY COMMISSION EXPIRES APRIL 22, 2014
3996130 Pages: 2 of 4
02/13/2014 02:30 PM R Foe:$26.00
Steve Moreno. Clerk andRecorder, Weld County, CO
9gINJP.rRi�9rkL'I'l�r;IlfIi (Uf+rh�,frl�Bt';i14l#114.®lIII
EXHIBIT A Sheet I of 2
Parcel 2 PE
A parcel of land,being a portion of that real property as described in Reception No.
7346885,to Daniel J.Buderus and Julie A.Buderus,recorded March 4,2008,Weld
County Records,lying in the Southeast One-quarter(SE'A)of Section 32,Township 5
North,Range 65 West of the 6th Principal Meridian,City of La Salle,Weld County,State
of Colorado,described as follows:
Beginning at the northwest corner of said Reception No.7346885,said corner being the
northwest corner of LOT A,RECORDED EXEMPTIONNNO.1961-32 RE-3847,
recorded September 17,2004 at ReceptionNo.3220112,and the northeast corner,of that
parcel of land as described in Reception No_1544946,to Bill Paul and Betty L.Paul,
recorded April 6,1970,Weld County Records;
thence N 89°26'36"E,252.99 feet,along the north line of said Lot A; ,
thence S 00°33'24"E,15.00 feet;
thence S 89°26'36"W,261.09 feet, parallel with and 15 feet south of said north
line to the east line of said Reception No. 1544946;
thence N 27°48'42"E, 17.05 feet,along said east line to the Point of Beginning.•
Said parcel contains 3860 square feet,more or less.
Basis of bearings is between those monuments for the north line of said SE'A as depicted
on Sheet oft.
An illustration for this description is attached hereto and made a hereof.
The author of this description is Mr.John S.Lambert,PLS 13212,a registered''
professional land surveyor licensed to practice in the State of Colorado.The description
was written for Public Service Company of Colorado,and on behalf of Lambert Land
Consulting,LLC,on November 11,2013,under Job Number L13-38,and is NOT to be
construed as representing a monumented land survey.
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EXHIBIT C
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Minimum Requirements for Grading and Excavation near Public Service Company of
Colorado Transmission Pipeline(s)
1) General
a.'Colorado State Law Requires notification before excavation around utilities occurs.Requestor or
Requester's'Contractor must call the Utility Notification Center of Colorado,(UNCC) 1-800-922-1987
(811 when calling within Colorado)48 hours prior to excavation,including the grading of the right of,
way,begins.Public Service Company of Colorado(PSCo)representatives provide these construction
locates at its' cost as a participant in the one call system.
b. All costs for labor,equipment and materials required to repair any damage to the pipeline(s)caused by
Requestor or its'Contractors will be the responsibility of the Requester and/or its Contractors for
reimbursement to PSCo:
c. Requestor's Contractor shall provide access to PSCo facilities on the project site for inspection by
PSCo Personnel.Open excavations that need to be entered by PSCo Personnel shall conform to all
federal,state and local jurisdictional codes and regulations governing safe entry and exit from open
excavations.
d. A fully executed agreement,applicable to the type of right being requested,between the Requester
and PSCo must be completed prior to construction activity within the PSCo ROW.
e Requests for installation of improvements by Requester within the PSCo ROW must be reviewed and
approved by PSCo'High Pressure(HP)Gas Engineering and Operations. Installation of,and all costs
associated with any improvements,are the responsibility of the Requester.All costs associated with
repairs or relocation of these improvements to accommodate PSCo:Operations and Maintenance work
on the existing pipeline(s)or installation of a new pipeline will be the responsibility of the Owner of
record of the property at the time the work is performed:
f. In the mutual interest of project coordination and scheduling of PSCo resources for your project,PSCo
requests invitation to the Pre-Construction Meeting to obtain actual schedules and construction plans,
make introductions and address any site specific conditions or project changes that have occurred
between Final Design Review and Construction.
g. Any exceptions to the Minimum Requirements stated in this document must be requested in writing
and reviewed by PSCo HP Gas Engineering and Operations before approval for construction activity
on the PSCo pipelines)permitted ROW is given.
h. Any change in Requester's construction plan and or scope of work that was agreed to between the
Requester and PSCo prior to,or during,construction must be presented to PSCo HP Gas Engineering
and Operations for additional review and modification of requirements.
i. Additional requirements may apply to address issues not foreseen during review of Requester's
proposal.
Page 1 of 7
2) Engineering
a. Specifications of weight and type of any heavy equipment or trucks planned to be run over or along
the pipeline(s)are required to be submitted to PSCo HP Gas Engineering for analysis of excessive live
load stresses induced on the pipeline(s)prior to approval for crossing is given.
i. Should calculated allowable stresses induced by Requestor equipment traveling over the PSCo
pipeline(s)be exceeded,Requestor will be required to install additional temporary fill over the
pipeline(s).
ii. If calculated allowable combined stress on the pipeline(s)can not be reduced below limits by
adding additional protective fill over the pipeline(s)or the depth of additional fill is deemed
impractical,a temporary bridging structure installed over the pipeline(s)will be required to
mitigate the excess stress on the pipeline(s).
1. This bridging structure must be constructed of timbers,plates or other material that
does not allow the driving surface to come in contact with the ground surface.The
supports for the driving surface of the bridging structure may be of dirt or other
material with the inside edges of the supports placed a minimum of 5 feet from the
center line of the PSCo pipelines).
b: Requestor's Plans must contain surveyed horizontal location of the PSCo pipeline(s)throughout the
project area based on current field locates.Surveyed vertical location of the PSCo pipeline(s)based on
pothole information must be presented on the Proposed Construction Drawings Profile Sheets at all
Requestor facility crossing locations of the pipeline(s)prior to final comment and approval of the
plans.
c. Locates and or potholing for the purpose of Requestor's engineering,design and construction
drawings to establish the horizontal and vertical locations of PSCo facilities and all associated costs
will be the responsibility of Requestor.A PSCo representative will be required to be on site during any
pothole operations.
i. Potholing.with excavation equipment during frost conditions will not be allowed unless
contractor thaws ground prior to excavation. Potholing with vac-truck will be allowed under
any conditions
d. Any excavator acting in a reckless manner while working in the area of Xcel
Energy pipelines shall be asked to stop their work in that area.Work will not be
allowed to continue until Xcel Energy personnel deem,the situation has returned
to a safe situation.
Page 2of9
•
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e. Blasting Near PSCo Facilities
i. Notification
1. In accordance with Article 7 of Title 9 of CRS`Explosive Act",Section 6.1.7,Utilities
must be notified at least 24 hours prior to commencement of blasting activity.If
Blasting is anticipated for this project an"Explosive Use Application and Notification"
and the associated Agreement Document must be processed before blasting activities
may commence near the PSCo pipeline(s).It is recommended that this notification be
made at least one month in advance of actual blasting activities to allow for processing
of these documents and any studies that may need to be performed to access the
applicants blasting plan.: ..
ii. Limits
1.':Buried.Pipe-Total Combined(Effective)Stresses on the pipe must not exceed 50%of
the specified minimum yield strength of the pipe.
2. 'Above Ground Pipe-Blasting operations must not generate Peak Particle Velocity
(PPV)greater than'I in/set.
f. Vibrations from dynamic compaction equipment or other sources must be maintained at a peak
particle velocity of not greater than 1 in/sec as measured in any one of the three components of a
seismographic reading.
3) Inspection
a. PSCo will require that one of its Field Operators be on site during the potholing,excavation,site
grading,backfill`operations,compaction,and installation of your facilities when working within the
pipeline(s)easement and/or a minimum of fifteen(15)Ft from the outer limits of the locate marks for
the PSCo pipeline(s).This standby expense is covered by PSCo during a normal 8 hour day Monday-
Friday.Any time required in excess of 8 hours per day or weekend and holidays will be billed to the
Third Party of the facilities under construction at the applicable PSCo Labor Overtime Rates and •
Equipment/Vehicle'Rates.
b.;Requests for standby will be filled on a first-come,first-served basis,consistent with the number of
personnel available for standby and Xcel Energy workload at that time. It is not our intent to
unnecessarily impede the work schedule of the installation contractor,and we will strive to be as
available as possible.
c. Appointments for standby excavations shall be scheduled to minimize the amount of time Xcel Energy
personnel are waiting during contractor setup:Contractors will be charged at the applicable straight
time or overtime PSCo labor rate and Equipment/Vehicle Per hour for time between appointment time
and'actual start time(i.e.a call for an 8:00 A.M.standby and actual construction start time of 10:00
A.M.will result in 2 hours of the applicable straight time or overtime PSCo labor and
Equipment/Vehicle charges)
d. Frequency and duration of Field Operator.Standby will be determined during the initial site visit with
the Requestor's Construction Contractor based on construction schedule and phasing of construction
activities as they relate to work near the PSCo pipeline(s).
Page 3'of 7
•
e: Potholing,frequency during construction will be at the discretion of the PSCo Inspector on site on an
as needed basis based on field conditions and proximity of the excavation to the pipe.
f. ,Potholing with excavation equipment during frost conditions will not be allowed unless contractor
thaws ground prior to excavation.Potholing with vac-truck will be allowed under any conditions.
4) Construction
a. Grading,Excavation,'Installation.Backfill
i. A"Method of Construction Plan"shall be provided to PSCo HP Gas Engineering and
Operations for review and approval prior to the beginning of construction.
ii. For Parallel.Encroachments,the recommended method of construction is to place the trench
spoils between the Requestor line and the PSCo line and set the working side on the opposite
side of the trench from the spoil pile.
1. Alternate Method of Construction
a. Install a layer of straw or some other method of identifying the top of the
existing ground elevation then place trench spoils on top of the line.During
backfill operations,removal of the spoil shall stop at the level of the warning
material.
b. Requests to work above existing PSCo pipeline(s),either on top of existing
ground elevation or top of spoil pile,will be reviewed on a case by case basis.
Requestor must provide specs for all equipment that will be traveling on top of
the line for calculation of combined stresses for determination if allowable
combined stress levels are exceeded prior to approval of this method
iii. The maximum unsupported length of PSCo's 2"and larger diameter High Pressure Natural Gas
pipeline(s)is 5 feet.
1:' Specific calculations can be made for pipe diameter's greater than 2"in outside
diameter to determine greater free span lengths.
2:' Should Requestor excavation require a greater length of the pipe be exposed than
allowable stress limits dictate,plans for providing support will be required to be
submitted to PSCo HP Gas Engineering for review and approval.This support system
can be provided by the third party's contractor and installed under the supervision of
the on-site PSCo Energy Employee:A list of qualified pipeline contractors to perform
this work,if needed,can be supplied to you if so requested.
iv. If site re-grading leaves less than 36"of cover over the PSCo pipeline(s),the pipe will have to
be lowered or additional protection measures installed over the pipe such as concrete capping
or steel plating.Any mitigation measures,including engineering of such structures,will be at
the expense of the Third Party of the facilities being constructed.
v. Backfill operations around exposed sections of PSCo's pipeline(s)shall be inspected by a
PSCo representative.
Page 4 of 7
vi. Any sections of the PSCo pipeline(s)that are exposed during construction must be padded with
material passing 34"minus screens that is non-angular in shape to a depth of one(1)foot above
the top of pipe before native material passing 6"minus screens or two(2)feet above the top of
pipe before native material passing greater than 6"plus screens can be used for the remaining
backfill.Bedding material of an angular nature and/or passing 2"minus screens may be used if
rock shield,epoxy coating applied to a thickness of 30 mils or greater,or other abrasion
resistant coating,is installed around the pipe over the entire exposed length.Installation of any
such additional protective coating installation shall be inspected by a PSCo representative.
vu. Utilization of flowable fill with cement or fly ash binder material may be utilized once one(1)
foot of cover is established over the PSCo pipeline(s)with consolidated,non-abrasive,bedding
material The flowable fill must be able to be excavated,with a shovel.The flowable fill shall-'
extend ten feet on either side of the PSCo pipe and extend to the trench walls.The use of
flowable fills is subject to approval of the local government authorities.
viii. Other backfill material not requiring additional compactive effort to obtain required dry
densities of the project specifications may be utilized around the pipe.Submittal of a backfill
plan and material specifications shall be presented to PSCo HP Gas Engineering and local
government authorities for review before approval is granted.
ix. Permanently added fill over PSCo pipeline(s)shall not exceed a typical depth of cover of four
(4)feet over the top of PSCo's pipeline(s)at final grade.Exceptions due to terrain,grading
requirements and re-establishment of slopes must be reviewed with PSCo HP Gas Engineering
but shall not exceed eight(8)feet of cover over the top of the PSCo pipeline(s).
b. Compaction over PSCo Pipelines
i. No heavy vibratory compaction equipment(driver operated)will be allowed over or along the
length of the PSCo pipeline(s)in the area requiring compaction and for a distance of ten(10)
feet on either side of the outside wall of the pipe and ten(10)feet from the ends of the pipe
length at the compaction area limits if less than three(3)feet of cover is left over the pipe after
sub excavation work is completed:
ii. Light vibratory compaction equipment(jumping jacks,walk behind or remote control rollers)
may be utilized once the minimum one(1)foot of bedding material cover over the top of the
PSCo pipeline(s)is established.
c: Facility Crossings
i. Buried Facility Crossings of the PSCo pipeline(s)will be required to go under or over the
PSCo pipeline(s)with a minimum clearance of two(2)feet to the bottom or top respectively of
the PSCo pipeline(s).
ii. Buried facilities installed parallel to the PSCo pipeline(s)must maintain a minimum horizontal.
separation of ten(10)feet from the pipeline(s):If this minimum horizontal separation cannot
be maintained,the top of the facility being installed will be required to be one(1)feet below
• y re9
the bottom of the PSCo pipeline(s)for every foot closer than ten(10)feet to the pipeline(s).
Page 5 of 7
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d. Improvements/Structure/Facility Placement
i. No surface or sub-grade structures or utility facilities will be allowed within the PSCo ROW
limits without plan review approval from PSCo HP Gas Engineering and Operations.Potential
ignition source facilities shall be a minimum of fifteen(15)from the outside wall of the pipe
e. Landscape Installation
i. No planting of vegetation will be allowed within the PSCo ROW limits without plan review
approval from PSCo HP Gas Engineering and Operations.Under no circumstances will trees
be allowed to be planted over the pipeline(s)within the PSCo ROW limits and shall be no
closer than fifteen(15)feet from the outside wall of the pipe.
f. Cathodic Protection
i. A copy of the Requestor Cathodic Protection(CP)System design shall be provided to PSCo
for review prior to construction. .
ii. At crossing locations,Stray Current Mitigation will be required if either pipeline is
cathodically protected from a rectified ground bed system.At a minimum this shall consist of a
run of two#8 wires from Public Service Company(PSCo)pipe and 2#8 wires up from the
third party facility pipe into a common or separate test station for bonding of the two systems
together if necessary.The wires could either run to the test station in a common conduit or
separate conduits: In addition,four 17#or larger anodes are to be placed in each quadrant of
the crossing pipes and placed vertically equidistant between the two pipelines.PSCo will
provide the material for its CP test station and assist Requester's contractor with installation
of the test station.
iii. For parallel encroachments,at locations where third party is installing a CP Test Station,the
third party will be required to expose the PSCo pipeline(s)for installation of a CP test station
for monitoring of interference.PSCo will provide the material for its CP test station and assist
the third party's contractor with installation of the test station.
•
Page 6 of 7
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5) Post Construction
a. Permanent Private Road Crossings
i. Permanent private access roads intended for use by vehicles with a loaded single axle rating of
less than or equal to CDOT load limits,must provide and maintain a minimum of 4 feet of
cover over the PSCo pipeline(s).Any party needing to cross the PSCo pipeline(s)with vehicles
in excess of the CDOT Load Limits per single axel must contact PSCo for additional
requirements or place bridging structures over the located pipeline(s).
ii. Permanent private access roads intended for use by vehicles with a loaded single axle rating of
less than or equal to 20,000 lb per axle,must provide and maintain a minimum of 4(four)feet
of cover over the PSCo pipeline(s).
iii. Tracked equipment crossings of the PSCo pipeline(s)must be made via tractor/lowboy
transport adhering to the restrictions of section 5.a.i and 5.aii.If it is desired to track the
equipment over the PSCo pipeline(s),PSCo must be contacted to calculate the limits for the
specific piece of equipment or provide a bridging structure over the pipeline(s)in accordance
with Section 2.a.ii.l.
b. Four wheel all terrain sport and utility vehicles and dirt bikes are exempt from this section's
restrictions. A minimum cover of twelve(12")inches of dirt over the pipe must be present before
these vehicles can cross over the pipe..
c. It is recommended that Requestor install and maintain load limit signage at all road crossings of the
PSCo pipeline(s).
d: PSCo will place pipeline markers at all permanent road crossings that are to remain at the conclusion
of the installation of the Requestor pipeline.
Page 7 of 7
EXHIBIT D
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Xcel Energy®
Final
Soldier Pile Impact Analysis
51.5A Bridge Replacement
Located in Weld County,Colorado
Safe Distance from 2" High Pressure Gas Lines
Dates October 28,2015
Prepared by:Kim Logan
(iiolobar
$15).044
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•
Xcel Pile Driving Analysis 51.5A Bridge Replacement—Job#10-150287
TABLE OF CONTENTS
Contents
Scope 3
Information from Xcel 3
Assumptions 3
Calculation Description 3
Discussion end Results 4
Conclusion 5
Impact Load 7
Maximum Pressure from Boussinesq's Formula 8
Guidelines for Design of Buried steel Pipe 10
Typical Poisson's Ratios 13
Shear Wave Velocity 14
STAAD Output for 4,490 psf 16
Internal Pressure and Pipe Stress 18
Pile Driving Equipment 20
Page 2 of21
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XceI Pile Driving Analysis 51.5A Bridge Replacement—Job#10-150287
Scone:
51.5A Bridge Replacement is in Weld County,about 1,350ft west of the intersection of
Scotch Pine Drive and County Line Road 50.5. The bridge replacement project
anticipates utilizing driven soldier piles during construction. The piles will be installed
using a vibratory head and not a traditional impact type pile driver. This type of
installation will essentially eliminate impact loads. The scope of this report is to
determine if the 2"Kersey Lateral pipeline will be damaged during pile driving
operations:The pipeline is located adjacent to the bridge and the piling will be installed,
at a minimum 5it horizontal distance to the pipe.';
This report does not consider any effects that the vibration from the pile driving
equipment may have on the pipe directly or Indirectly as a result of soil movement caused
by the vibrations and local loss of soil strength. The potential of soil movement due to
pile installation should be considered before pile driving operations begin.
Inputs:
The follo i.wing information was supplied by Xcel Energy:
1. The pipe has aninternal operating pressure of 900ps1.
2. The 2"pipe has a yield stress of 42ksi.
3. Therpipe has awall thiclmess of 0.154".
4 The pile driving equipment to be used,ea shown on Page 20 and 21.
5 The buried pipe will be a minimum of Sit horizontal distance from the pile tip
Assumptions; .
On page 7 to 9 the following assumptions have been made for the analysis
I. The pile configuration is consistent with Boussinesq's formula for a point load,
that is,the width of the pile is small compared to the depth of the buried pipe.
2 The soil is also consistent with Boussinesq's formula,that is,the soil behaves as a
semi-infinite,elastic,isotropic and homogeneous material.
3. The soil is 1101b/cf
4. The soil Poisson's Ratio is 0.42(this value is selected to maximize the impact
force)
5. The soil shear wave velocity is V,=1,200 ft/sec(this value is selected to
. . . . . maximize the impact force).
6. Pipe stress shall be acceptable if it is loss than or equal to 60%of the pipe's Yield
Stress of42ksi.
Calculation Desenption:
In this calculation,an impact force is determined based on a pile driving hammer that . .
weighs 32,000 lb.and has a drop height of 11.25ft. Although a pile driving hammer will
Page of 21 .
Xcel Pile Driving Analysis 51.5A Bridge,Replacement—Job#10-150287
not be used during construction,this method provides an upper bound impact force for
analysis of the buried pipe. The method in American Lifelines Alliance,Guideline for
the Design of Buried Steel Pipe(see pages 10 to 12)is used to calculate the impact force.
This impact force is calculated on page 7 and is used to evaluate the change in pressure
on aburied pipe that is located a horizontal distance of 5ft from the application of load.
The calculated impact load is 1,074 kips. The Boussiesq formula is used to determine the
pressure increase exerted on the pipe line buried at various depths below grade and
located 5ft horizontally to the load point The maximum pressure is exerted if the pipe is
buried at about 6.1 ft below grade. This pressure,4,297 pst,is calculated on page 15.
The maximum'calculated external soil pressure is used in the STAAD.Pro(a structural
analysis program)analysis model to determine the corresponding stress in the pipe.
Technical Toolbox(see pages 18 and 19)was used to determine the stress in the pipe
from internal.pressuros. This stress from external pressure is added to die stress from the
internal pressure and the total stress is compared to the yield strength of the pipe.'If the
stress is below 60%of the pipe yield strength,the impact load from pile driving is
considered safe at the specified horizontal distance.
The pile driving equipment(see pages 20 and 21)that will be used is a pile driver made
by Hercules Machinery Corporation(HMC)called a Sonic Side Grip SP-100. This driver
does not drive the pile by hammering the pile through the soil. Instead it vibrates the pile
so that the soil is"liquefied". The cyclic loading produced by the vibrating head induces
substantial pore pressure buildup leading to loss of soil strength allowing the excavator,
to which the vibrating head is attached,to push the pile into the soil. This type of pile
driving will apply lower forces than the impact force that was evaluated in this
calculation.Pile driving loads are,for all practical purposes,non-existent due to the type
of pile driving equipment being used.
Discussion and Results:
Based on assumed conditions and soil properties,this calculation ncsnvnes a calculated
impact force of 1,075 lops with the T'pipe buried at a minimum horizontal distance of
5ft from the location of the pile impact. The driving and impact force from the pile driver
that will be used is much lower than the impact force that was considered
1. The internal stress of 6.95kmi is calculated using the maximum allowable
operating pressure on pages 18 and 19.
2. The impact load is 1,075 kips(see page 7)based on a hammer weight of 32,000
lbs dropping 11.25 feet and assumed soil properties. Actual impact loads will be
almost non-existent
3. On page 8,Boussinesq's formula is shown. On page 15 the Boussinesq formula
is used to calculate the maximum pressure of 4,297 ps£
4. S'I'AAD output basal on the calculated maximum soil pressure is provided on
page 16. The approximate deformed shape is shown on page 17.
Page 4 of 21
•
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Xcel Pile Driving Analysis 51.5A Bridge Replacement-Job#10-150287
5. The effects of soil vibrations or soil movement duo to the pile installation have
not been evaluated. The stability of any slopes and the potential forthe
movement of sell during the pile installation should be considered.
Conalusion(s):
1. A 2"diameter pipe with 0.154"wall thickness is able to withstand an impact load
of 1,075 kips and internal pressure of 900 psig if it is located a minimum Mt
horizontal distance to the location of the impact force:
2. The 2"Kersey Lateral pipeline will be safe fromstresses induced by pile driving
impacts if a minimum horizontal clearance of Mt is maintained between the
pipeline and the pile location
Page 5 of2]
Xcel Pile Driving Analysis 51.5A Bridge Replacement—Job#10-150287
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Page 6 of 21
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Guldaance for the Design of Burled Steel Pipe
5.0 Surface Impact Loads
5.1 ' Maximum Impact Load
The impact loads described in this section are those resulting from large weights falling from
significant heights.In this case,the use of an impact factor F',as applied in Section 4,is not
sufficient to estimate the effect of the impact load on the buried pipe.The surface impact load
due to the weight W of a fallen object(as shown in Figure 5.1-1)is:
il
P — 32WH,Gr;" (5_l)
sex(1—v)
where:
P,,,,„ = maximum load at the soil surface,pounds
W = weight of falling object,pounds
Hr = drop height,inches
ro = least horizontal radius of the falling body,inches
v = Poisson's ratio for soil
G = soil shear modulus,psi
For large strains,near the region of impact,the shear modulus is one-tenth the low amplitude
Shear modulus,or
Gus (5-2)
10
where:
V, = shear wave velocity of near surface soils,inches/second
p = mass density of near surface soil,lbsec2/in4
5.2 Penetration and PPV
For impact near the pipe location,the increased pressure transmitted to the pipe can be evaluated
as described in Section 4 where Prox is the applied surface load.This evaluation considers the
ovality,through-wall bending,side wall crushing,and ring buckling:In addition,the burial depth
should be sufficient to guard against ground penetration by falling objects.The penetration depth
can be estimated by:
va
x =kP log 11+ ) (5-4) '
, a 215,000
where:
July2001 Page21
11 of 21
Gu:dennea for the Design of Burled Steel Pipe
x, = penetration depth,feet
weight per unit impact area,psf
V = impact velocity(equal to , 2e7;),feet per second
k = coefficient of penetration whose empirical values are 0.0367 for sandy soil,
0.0482 for soil with vegetation and 0.0732 for soft soil
For impacts at larger distances from the pipe location,wave propagation is the primary cause of
deformation in the buried pipe.For such situations,the peak particle velocity can be calculated
[Mayne]as follows: ( . ..
'
PPV=8I � (5=4)
where:
PPV = peak particle velocity,inches per second
W = weight of falling object,tons
H! = drop height,feet
d = shortest distance from point of impact to centerline of pipe,feet
The calculated value of peak particle velocity can then be used for evaluation,using,for
example,the procedures given in the section on blast loads.
6.3 Example
Consider the ground impact due to a 15-foot fall of a large heat exchanger being lifted during
construction.The heat exchanger weighs 420 tons(840,000_ lb).The impact area has a 6 foot
diameter.The soil density is 110.lb/ft ,its Poisson ratio is 037,and the shear wave velocity is
833 ft/sec= 10,000 in/sec.
The weight of the falling object is W=840,000 pounds,the drop height is Hp 180 inches,the
equivalent radius of the impact area is r.=36 inches,the soil unit weight is y=110 lb/fts,the.
mass density is p=y/g,the soil's Poisson ratio is v=037,the shear wave velocity of near surface soils is V,=-10,000 inches per second,which leads to:
p = 0.0001647 lb-sec2lini
G p Vs2/10=1647 psi
P = 6,793,00016
To calculate tho penetration depth,we first determine the velocity at impact:
V=(2gHj)03= [2(32.2)(15)ju=31 ft/sec
•
July 2001 Page 22
I Z °PIA
Guidelines forthe Design of Burled Steel Pipe
The impact pressure is:
P=P J./(xr12)=6,793,000/(n 362)=1668 psi
The weight per unit impact area is:
P=W/(ma1)=840,000/(n 362)=206 psi
For sandy soil the coefficient of penetration is k- 0.0367.Consequently,the penetration depth is
calculated as:
xP=(0.0367)(29,709)log(1+312/215,000)=2.1 ft
5.4 Figure
ff
re Hi
Pte.
O
Figure 5.1-1 Fall ofa Heavy Object on Ground Surface
Duty 2001' Pegs 23
(3 of 2-4
Typical Values of Young's Elastic Modulus and
Poisson's Ratio for Pavement Materials
Materiel Young's Elastic Modulus Poisson's Ratio
03 or M,),Psi (p or v)
Asphalt concrete 32 P 2,000,000—5,000,000 025—0.30
(uncracked) 70 F 300,000—500,000 030—:0.35
140 F 20,000—50,000 0.35--0A0
Portland cement concrete 3,000,000—5,000,000 015
(untracked) ` "
Similar
Extensively cracked surfaces ' 8imilartogranuier
base course materials base course mabazials
Crushed stone base 20,000—80,000 0.35
(clean,well-drained)
Crushed gavel base 20,000-80,000 0.35
(clean;well-drained)
Unemshed gravel base
Clean,well-drained 10,000 60,000 035
Clean,poorly drained 3,000-15,000 0.40
Cement stabilized base
Uncradced 500.000-2,000,000 0.20
Badly cracked 40,000—200,000- 0.30
Cement stabilized subgrade 50,000—500,000 0.20
Lime stabilized subgiade 20,000—150,000 0.20
Gravelly and/or sandy soil subgrade 10;000—60,000 0.4O
Silty soil subgrade(drained) 5,000—20,000 0.42
Clayeysoil subprade(drained) 3,000—12,000 0.42
Dirty wet,and/or poorly-drained 1,500—6,000 0.45-0.50
materials.
Intact Bedrock'
Note:,values greater than 500,000 have 250,000—1,000,000 0.20
negligible influence oa eurfacc deflections.
Note: Exceptions to the typical values given.above often occur.•High fines contents and/or higtt
moisture contents tend to reduce Young's modulus and increase Poisson's ratio. Unusually low
fines contents and/or low moisture contents have the opposite effect. Poisson's ratio fora
completely saturated material will be close to 0.50. Well-cured;asphalt emulsion stabilized
gravel,and reclaimed asphalt pavements,will have moduli shgbtly less than asphalt concrete.
•
14 of 21
2000 •
1600 - -.43 tomatono
•
1200 -
i�
i
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• O SOIL TYPE •• WW1
400 O YERBA BUENA MUD -
■ ALAMEDA FM (MARINE) •
O AIAMEDA FAA(0%�
I I
00 2000 4000 8000 6000 10000 12000
SHEAR STRENGTH (pet)
Figure 6;1 Va venue S„[Dickenson 1994).
e too° - visit". •
v , O- .. O
0f ego
RI BOO - ✓ q •
a
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f 500.TYPE
• BAY MUD
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4 ■ AWIEDA FN (MARCO
O MAMMA FM(OXIDIZED)
' r i r-rs•
0 1000 ,. .2000 - 3000 4000 ' 5000 -..SHEAR STRENGTH STRENGTH (pat)
Figure 6.2 Va versus S°-reduced scale[Dickenson 1994].
Two plots of Dickenson's Vs data versus S. are presented in Figures 6.1 and 6.2. This
relationship was developed specifically for four cohesive soil units in the San Francisco Bay
Area:Bay Mud,Yerba Buena Mud,and Alameda Formation (marine and oxidized). The above
relationships may not be appropriate for use in other regions or soils of d)ffcrent depositional .
environment. Similar to both the SPT and CPT, site-specific correlations may be developed
based on a limited number of site-specific Vs measurements and using a similar functional form
as&r ation(6.2)above.
56
l5 of 2l
Input Cell
Formula Cell
. ..::...... ..
A is soil density= 110;pcf
Impact Load In 1,075,000 lb
h =depth from grade to top of pipes 6.12372439;ft
r=horizontal distance from toed P o I .; 5'ft
Z• _ 7.91ft �(
p(I) Initial preemie on pipe= 674;psf
Ap =Increased pressure from wheel toad=; 3817;psf
p(t)=total pressure on pipe with wheel load., ` 4490=psf
R Value Z Value Ap p(i) p(t)
0 6.12 13,687.3 674 143809';
2 ' 6:44 10,623.7 674 112973
4 731 5,030.1 , x`874 6303.7
6 7:91, " 3.816.8 674 4490.4 +--�--
6 8:57 ` 2.544.9 674 3218.6
8 10.07 1.135.6 674 1809,2
10 11.73 531.7 674 12053
12 13.47 265.6 674 939.2
14 14.87 162.3 674 835.9
16 17:13 79.9 874 753.5 ._
19 19.96 37.2 674 710.8
28 28.66 6.1 674 679.7
38 36.49 14 674 675.0. :'
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1
Project Calculation Cover Sheet CALCULATION NO:
PROJECT: BY: DATE:
2"Kersey Lateral Bridge Pile Study Nathan Wlllkom 101812016
CLIENT: CHECKED BY: DATE:
Mid Energy Khn Logan 1011212015
PROJECT NUMBER: APPROVED BY: DATE:
10.160297 Kim Logan 10127/2018
i{
REVISIONS: Checked MProved
No. Date Deswipticn By
0, 101812016 Calculate pipeline hoop stress&Percentage SMYS NRW KML KML
1 10127120118: Text end reference edits. NRW KML KML
CALCULATION AREA: MECHANICAL
DESCRIPTION: DETERMINE PIPELINE HOOP 8 LONGITUDINAL STRESS
1. PURPOSE:
Calculate pipeline hoop end longitudinal stresses as a result of Internal pressure only.This is a supplement
to the Xce12'Kersey Lateral Bridge Pile Study.
2. DISCUSSION:
Xcel has requested an examination of the pipeline to withstand forces resulting from nearby pile driving.This
calculation Ise supplement to the aforementioned study:_Calculation will be completed with Pipeline
Technical Toolbox(PUB).Manual hand calculation will be Included for comparison to the PTTB results.
3. CONCLUSIONS: . I
Calculated pipe hoop and longitudinal stresses are summarized in the following table:
CASE Situation : Calculated Stress
1 Hoop Stress(From PTTB Printout) 6,064.6 psi
10 Hoop Stress as percentage of SMYS' 18.68%
2 Longitudinal Stress(From PTTB Printout) 3,4773 psi
2, Longitudinal Stress as percentage of SMYS' 8.28%
Table 1-Conclusions
. . . �SMYS e Stand Minimum Yield sheds.
lei of at
4 DATA:
Client provided data as follows:
Maximum Allowable Operating Pressure(MAO?)=900 PSIO
Pipeline Outer Diameter.2-318'
Pipeline Wall Thickness:0.154'
Pipeline Material 8 Grade:Steel,APL-SL X42
SMYS:42,000 psi
S. ASSUMPTIONS:
Internal pressure Is assumed to be equal to the MAOP of the pipeline.Con lIcting information was discovered
regarding MAOP rating of the Kersey lateral, therefore the highest MAOP discovered shall be used for the
purposes of this calculation.
s. CALCULATIONS:
See attached Pipeline Technical Toolbox(P17B)Mod for hoop and tongthidinal stress cakxrtattoa sots,
the slight.variation between the manual toss calculation and the P7173 results are due 60 PT TB's rounding
of the pipeline's outer diameter to a maximum of two decimal places. The PTTB results will be considered
moo conservative for the purposes of this document
Hand agitations are completed using the Barlow Equation.
S _PD—(900ps0(23151n)=6939.93pst
e— u (2x0.t54m>
5 _ _PD (900pui)(2375in)=346996
int
c— 4r (4X0:154rn)
Percentage of SPAYS:
SMYS=42,000psi
6,954.5psis =16.56%%SMYS,� 42,000psf
-nom pea ntaw arm s rstcumssns use hoop eed IangItuoBretebesses RmtPTre toured In Table t
7. REFERENCES:
t:. DOT Office of Pipeline Safely.Handbook
2. Pipeline Technical Toolbox Printout
Appv'dby3D�x-r Kra.-. 10127/2015 Chad Arced b.3 Date: -. •,
,. .Rrepuedbye:Dt. NRw. 16M015 :R.evUdby&0dt s . . '
RcrbSNo.. 0 HJDtobsl limcctNmormr: ..10-U0281 'I Pge2or2
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Sonic SideGrip®
SI' Series Model Technical Specifications .. . 1
SP-40 SP-SO SP-60 SP-80 SP-100 nu'P.-5
Excavator Classelbn) 18-20 25 25-30 25-40 30-55
011 Flow(GPM) 32 40 47 57 62
Net Weight(lbs.) 4,026 4,070 4,114 5,280 5,280
Maximum'Dank Pressure(PSI) 72.5 72.5 72.5 72.5 C7__25_,.:1 fi
Maximum Pressure Setting(PSI) 4,000 4,000 4,000 4,450 4,680 .
Frequency(1/min.) 3,000 3,000 3,000 3,000 3,000
Centrifugal Force(Tons) 40 50 . 60 80 .100
Number of Elastomers 10 10 10 16 16
Machine Height(Inches) 61 61 61 71 71
Rotation/Tilt Angle(Degrees) 360/30 360/30 360/30 360/30 360/30
Number of Eccentrics 2 2 2 4 4
1
Common Features:•Drives Sheet Pile,H Pile and Wood Pile —9': ti V j
• 15"Bottom Plate I r ° _ t 1„ '
•Modular Fixed law I nIC $I I ' 1 (I I r4a
•Adjustable Flow Control'Ti1t&Rotate -=6 ' "1P
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