HomeMy WebLinkAbout20132410.tiffRESOLUTION
RE: APPROVE AGREEMENT FOR PROFESSIONAL SERVICES AND AUTHORIZE CHAIR
TO SIGN - TETRA TECH
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 an Agreement for Professional Services
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 Tetra Tech,
commencing upon full execution, with further terms and conditions being as stated in said
agreement, and
WHEREAS, after review, the Board deems it advisable to approve said 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 Agreement for Professional Services 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 Tetra Tech be, and hereby is, approved.
BE IT FURTHER RESOLVED by the Board that the Chair be, and hereby is, authorized to
sign said agreement.
The above and foregoing Resolution was, on motion duly made and seconded, adopted
by the following vote on the 26th day of August, A.D., 2013.
ATTEST:
Weld County Clerk to the Board
BY:
APP
puty Cto the Board
MAST•."e'
bunty Attorney
Date of signature:
SEP 1 2 2013
BOARD OF
WELD C
NTY COMMISSIONERS
COLORADO
Garcia, Chair
,ainQ(
ouglers Radem c Pro-Tem
n P. Conway
yL SED
Freeman
rbara Kirkmey-r
cC ' /ow (e1; zad efh)
9-17-49
2013-2410
EG006'8
BOARD OF COUNTY COMMISSIONERS
PASS -AROUND REVIEW/ WORK SESSION REQUEST
RE: Tetra Tech Professional Services Agreement — WCR 49 Preliminary Design I-76 — WCR 22
DEPARTMENT: Public Works DATE: August 13, 2013
PERSON REQUESTING: Elizabeth Relford
Brief description of the problem/issue:
Anadarko was approved to advance CR 49 & CR 18.5 road improvements in accordance with their USR traffic
study at a work session held on June 10, 2013.
The Board directed staff to submit the August DOLA cycle application for the intersection of CR 49 & CR 22.
In addition, there could be a future opportunity to coordinate a DOLA application with Hudson for CR 49
improvements from I-76 to CR 18, with the County assisting with the local match in the December cycle.
The construction timing for all of these projects is different. For example, Anadarko is hoping to complete
paving CR 18.5 by late August early September. The Anadarko project will be moving quicker than the County
on constructing these improvements. We would like to ensure all future improvements tie into the Anadarko
project and would utilize the same vertical alignments. This eliminates the need to remove portions of the
newly constructed roadway to construct future projects. In order to ascertain all improvements would be using
the same design data is to have Anadarko's engineer (Tetra Tech) expand their scope of work to perform
preliminary horizontal and vertical alignments from I-76 to %z mile north of CR 22 to 95% surety. Then Public
Work's Design Team could finish the final designs in-house.
Therefore, staff is requesting to enter into a Professional Services Agreement with Tetra Tech to provide 95%
assurance for design of the horizontal and vertical alignments of CR 49 from I-76 to one-half mile north of CR
22. This will provide an economy of scale for future design efforts, costs, and will ensure no construction
improvements have to be removed and rebuilt. In addition, the money will go towards any local match costs for
DOLA grants.
Tetra Tech's project cost estimate is not to exceed $282,548. A more detailed proposal of the design is
attached.
By completing this design in one project rather than three separate projects, we can realize a 52% cost savings.
If this is done as three separate projects they would be separated as follows:
1. One-half mile north of CR 22 south approximately 2 miles
2. Anadarko's project south to CR 18 approximately .5 miles
3. Hudson's portion from CR 18 to I-76 approximately 1 mile
Prior to beginning work with Anadarko, Tetra Tech provided a proposal to them for final design that totaled
$260,000 for a portion of CR 49 from essentially CR 18 to just north of CR 18.5, and a portion of CR 18.5 from
CR 49 west. When that cost is reduced by removing items that Tetra Tech would not be providing for Weld
County, such as geotechnical investigation and pavement design, preparation and production of final, sealed
drawing sets, procurement support, construction observation and testing, and an as -built report, the revised total
cost for the Anadarko segment of CR 49 only (approximately 5,400 lineal feet, excluding the intersection and
CR 18.5) would be approximately $150,000.
Therefore, on a cost equivalent basis to the Anadarko project, the northern segment could be expected to cost
$300,000 to design (2 miles x $150K/mile), and the southern segment would cost $150,000 to design (except
that the southern segment includes a floodplain, which would necessitate hydraulic analysis and therefore
higher cost). For purposes of this estimate, however, the total cost of design of the two road segments could be
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expected to be on the order of $450,000. If the ultimate design is not completed by Anadarko, the design of that
segment of CR 49 could be expected to cost Weld County $150,000, bringing the total design cost for CR 49
from I-76 to one-half mile north of CR 22, if designed as three separate projects, to approximately $600k.
To check the validity of Tetra Tech's assumptions used to calculate these design costs, we evaluated the
engineering design based on some typical costs. Tetra Tech suggested the cost to construct this roadway may
be on the order of $2.3 million per mile. Then, using typical assumptions of engineering costs at 10% of
construction costs, a reasonable design fee for this road would be $230,000 per mile, or a total of approximately
$800,000. Using this assumption, the County would be a saving approximately $517,452
However, PW Engineering is estimating a 5 lane concrete road to cost approximately $4.6 million per mile.
Using Tetra Tech's 10% engineering design factor, we can assume the design fee would be more like $460,000
per mile. The County will save anywhere from $317,452 up to $1,000,000 by allowing Tetra Tech to perform
the initial design.
What options exist for the Board? (Include consequences, impacts, costs, etc. of options)
1. Agree to preliminarily design of CR 49 from I-76 to one-half mile north of CR 22.
2. Do not agree to preliminarily design of CR 49 from I-76 to Yz mile north of CR 22.
Recommendation:
Staff recommends option #1, by utilizing Tetra Tech to expand the scope of work they are currently performing
for Anadarko; the County has an opportunity to save a minimum of $300,000, as well as advancing
improvements at the southern end of the CR 49 corridor. Also, by utilizing an economy of scale, it will not only
save the County money and time, but will ensure the longevity of Anadarko's road improvements.
William F. Garcia, Chair
Douglas Rademacher
Sean P. Conway
Mike Freeman
Barb Kirkmeyer
Approve Schedule
Recommendation Work Session
Other/Comments:
AGREEMENT FOR PROFESSIONAL SERVICES
THIS AGREEMENT is made by and between the County of Weld, State of Colorado,
whose address is 1150 O Street, Greeley, Colorado 80631 ("County"), and Tetra Tech, a
professional incorporation, whose address is 3801 Automation Way, Suite 100, Fort Collins,
Colorado 80525 ("Contractor").
WHEREAS, County desires to retain Contractor as an independent contractor to perform
services as more particularly set forth below; and
WHEREAS, Contractor has the time available to timely perform the services, and is
willing to perform the services according to the terms of this Agreement.
NOW, THEREFORE, in consideration of the mutual promises and covenants contained
herein, the parties agree as follows:
1. Engagement of Contractor. County hereby retains Contractor, and Contractor hereby
accepts engagement by County upon the terms and conditions set forth in this
Agreement for Professional Services.
2. Period of Service. Contractor shall begin its services promptly after receipt of an
executed copy of this Agreement and will complete the services within four months (18
weeks). Times for performance shall be extended for periods of delay resulting from
circumstances over which Contractor has no control.
3. Services to be performed. Contractor agrees to perform the Services listed or referred
to in Exhibit "A" under "Scope of Services."
4. Compensation. County agrees to pay Contractor for services performed as set forth in
Exhibit "A," according to the "Budget and Compensation" set forth in the attached
Exhibit "B".
5. Additional Work. In the event the County shall require changes in the scope,
character, or complexity of the work to be performed, and said changes cause an
increase or decrease in the time required or the costs to the Contractor for performance,
an equitable adjustment in fees and completion time shall be negotiated between the
parties and this Agreement shall be modified accordingly by a supplement Agreement.
Any claims by the Contractor for adjustment hereunder must be made in writing prior to
performance of any work covered in the anticipated supplemental Agreement. Any
change in work made without such prior supplemental Agreement shall be deemed
covered in the compensation and time provisions of this Agreement.
6. Independent Contractor. Contractor agrees that Contractor is an independent
contractor and that neither Contractor nor Contractor's agents or employees are, or shall
be deemed to be, agents or employees of the county for any purpose. Contractor shall
have no authorization, express or implied, to bind the county to any agreement, liability,
or understanding. The parties agree that Contractor will not become an employee of
County, nor is Contractor entitled to any employee benefits from County as a result of
the execution of this Agreement.
7. Warranty. Contractor warrants that services performed under this Agreement will be
performed in a manner consistent with the professional standards governing such
services and the provisions of this Agreement.
8. Documents County Property. All documents produced in connection with the
performance of this Agreement, whether or not such materials are in completed form,
shall at all times be considered the property of the County. Contractor shall not make
use of such material for purposes other than in connection with this Agreement without
prior written approval of County.
9. Acceptance of Product not Waiver. Upon completion of the work, Contractor shall
submit to County originals of all test results, reports, etc., generated during completion
of this work. Acceptance by County of reports and incidental material furnished under
this Agreement shall not in any way relieve Contractor of responsibility for the quality
and accuracy of the work. Acceptance by the County of or payment for, any services
performed under this Agreement shall not be construed as a waiver of any of the
County's rights under this Agreement or under the law generally.
10. Insurance and Indemnification. Contractor shall defend and indemnify County, its
officers and agents, from and against loss or liability arising from Contractor's negligent
acts, errors or omissions in seeing to perform its obligations under this Agreement.
Contractor shall provide necessary workers' compensation insurance at Contractor's
own cost and expense.
11. Termination. The obligation to provide further services under this Agreement may be
terminated by either party upon written notice in the event of substantial failure by the
other party to perform in accordance with the terms hereof through no fault of the
terminating party. In the event of any termination, Contractor will be paid for all
services rendered to the date of such termination.
12. Non -Assignment. Contractor may not assign or transfer this Agreement, any interest
therein or claim there under, without the prior written approval of County.
13. Access to Records. County shall have access to Contractor's financial records as they
relate to this Agreement for purposes of audit. Such records shall be complete and
available for audit 90 days after final payment hereunder and shall be retained and
available for audit purposes for at least five years after final payment hereunder.
14. Time of Essence. The work will be performed in a timely manner.
15. Interruptions. Neither party to this Agreement shall be liable to the other for delays in
delivery or failure to deliver or otherwise to perform and obligation under this
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Agreement, where such failure is due to any cause beyond its reasonable controls,
including but not limited to Acts of God, fires, strikes, war, flood, earthquakes or
Governmental actions.
16. Notices. Any notice required to be given under this Agreement shall be in writing and
shall be mailed or delivered to the other party at that party's address as stated above.
17. Compliance. This Agreement and the provision of services hereunder shall be subject
to the laws of Colorado and be in accordance with the policies, procedures, and
practices of County.
18. Non -Exclusive Agreement. This Agreement is nonexclusive and County may engage
or use other contractors or persons to perform services of the same or similar nature.
19. Certification. Contractor certifies that Contractor is not an illegal immigrant, and
further, Contractor represents, warrants, and agrees that it has verified that Contractor
does not employ any illegal aliens. If it is discovered that Contractor is an illegal
immigrant, employs illegal aliens or subcontracts with illegal aliens, County can
terminate this Agreement and Contractor may be held liable for damages.
20. Entire Agreement/Modifications. This Agreement contains the entire agreement
between the parties with respect to the subject matter contained in this Agreement. This
instrument supersedes all prior negotiation, representation, and understanding or
agreements with respect to the subject matter contained in this Agreement. This
Agreement may be changed or supplemented only by a written instrument signed by
both parties.
21. Funding Contingency. No portion of this Agreement shall be deemed to create an
obligation on the part of County to expend funds not otherwise appropriated or budgeted
for.
22. No Conflict. No employee of Contractor nor any member of Contractor's family shall
serve on a County Board, committee or hold any such position which either by rule,
practice or action nominates, recommends, supervises Contractor's operations, or
authorizes funding to Contractor.
23. Severability. If any term or condition of this Agreement shall be held to be invalid,
illegal, or unenforceable, this Agreement shall be construed and enforced without such
provision, to the extent that this Agreement shall be construed and enforced without
such provision, to the extent that this Agreement is then capable of execution within the
original intent of the parties.
24. Governmental Immunity. No portion of this Agreement shall be deemed to constitute
a waiver of any immunities the parties or their officers or employees may possess.
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25. No Third Party Beneficiary. It is expressly understood and agreed that the
enforcement of the terms and conditions of this Agreement, and all rights of parties and
nothing in this Agreement shall give or allow any claim or right of action whatsoever by
any other person not included in this Agreement. It is the express intention of the
undersigned parties that any entity other than the undersigned parties receiving services
or benefits under this Agreement shall be an incidental beneficiary only.
26. Conflict of Interest. Contractor agrees that it has no interest and shall acquire no
interest, direct or indirect, that would conflict in any manner with the performance of the
services hereunder. Contractor further agrees that, in the performance of this
Agreement, no person having any such interest shall be employed.
27. Subcontracting. It is understood that Contractor may retain the services of a
Subcontractor to perform certain services as presented in Exhibit A.
IN WITNESS WHEREOF, County and Contractor have caused this instrument to be signed by
their respective duly authorized officers, all on the day and year first above written.
ATTEST:
By:
eitaL
Clerk --to the Board
Deputy C1'rk to the B
By:
By:
TETRA TECH
WELD COJJNTY
William F. Garcia, Chair, Board
of WelddCounty Commissioners
AUG 2 6 2013
4
ao/3 - ag/d
Exhibit A
Scope of Services
Understanding of Project
The purpose of this Agreement is ascertain all future road improvements would be using the
same horizontal and vertical alignments design data from I-76 to %2 mile north of CR 22 to 95%
surety. This will provide an economy of scale for future design efforts, costs, and will ensure no
construction improvements have to be removed and rebuilt.
This scope of service consists of five major tasks. All of the tasks maintain the same following
objective:
The objective to these tasks is for the Contractor to provide 95% assurance for design of the
horizontal and vertical alignments of CR 49 from 1-76 to one-half mile north of CR 22.
Task 1: Meetings, Coordination, and Regulatory Support
Tetra Tech will join Weld County personnel for a project kick-off meeting, and we have assumed
up to four other "face to face" meetings to discuss project progress and planning and to address
any issues or concerns that Weld County may have regarding the work. Intermittently, we plan
on regular contact between key personnel from both Weld County and Tetra Tech. We also
anticipate some coordination with Colorado Department of Transportation in the connection to
Interstate 76 and coordination with Town of Hudson as they have annexed portions of WCR 49.
Deliverables: Contractor shall provide meeting minutes within two days of any meeting with
County staff State staff, or Town of Hudson staff for attendee review and approval. Final
meeting minutes will be distributed to the County and the meeting attendees.
Task 2: Surveying
Tetra Tech plans to utilize 609 Consultants to conduct a topographic survey and prepare a base
electronic drawing in state plane coordinate system. This electronic drawing will include
topographic survey data 200 feet on either side of the current roadway centerline. The drawing
will incorporate survey that extends one-half mile north of WCR 22 on the northern boundary to
the south side of the Interstate 76 intersection with WCR 49. The drawing will include section
lines and markers, property lines and pins (where found), one -foot contours, fences, building
corners, existing centerline and edge of pavement, culvert locations and sizes, and utility
locations as defined by the 811 Utility Notification Center of Colorado (UNCC). Survey cross
section data will be collected approximately each 100 lineal feet of roadway. Additional survey
will be done upstream and downstream of the Jim Creek crossing of WCR 49 to assist in
floodplain analysis.
Deliverables: Contractor shall provide an electronic survey to Weld County.
5
Task 3: Utility Mapping and Potholing
Tetra Tech will provide the locations of the existing utilities within the project constraints as
determined by using the 811 UNCC locate system. This comprises the current right of way as
well as the proposed ultimate right-of-way including potential centerline re -alignments. The
locations will be verified by potholing in critical locations to determine the depths and types of
utility lines as well as the horizontal alignment. This proposal includes twenty pothole locations.
Should the need for additional potholing arise we will seek County approval and subsequently
bill on a time and material basis.
Deliverables: Contractor shall provide this task information, including the horizontal mapping
of the utilities electronically.
Task 4: Road Design
In collaboration with Weld County, Tetra Tech will develop a final design for the proposed
segment of WCR 49 in accordance with Weld County Engineering Design Guidelines, Weld
County Road 49 Access Control Plan, and Colorado Department of Transportation's Roadway
Design Guide. The proposed work includes utilizing a recommended typical road section to
develop a horizontal layout, and vertical design that meets the horizontal and vertical constraints
in the project corridor. The horizontal layout will include any relocation of roadway centerline
to accommodate existing constraints such as homes, utilities, and existing rights -of -way (as
required).
The WCR 49 connection to Interstate 76 is proposed to maintain the current WCR 49 underpass
in its existing location and section. The transition of WCR 49 to a four lane road is proposed to
occur as a connection to the on and off ramps of the westbound lanes of Interstate 76. The
connection will be designed to meet Colorado Department of Transportation's Roadway Design
Guide (2005).
The lane configurations at intersections with recommended turn lanes (including tapers and
stacking lengths) shall be provided by Weld County. Specifically, this includes the intersection
of WCR 49 with WCR 22 and Interstate 76.
Weld County will review proposed turn lane recommendations for the intersection of WCR 18.5
and WCR 49 in accordance with the approved Traffic Impact Study. The turn lane design for
WCR 18.5 will be provided by Anadarko Petroleum Company's Traffic Engineer. However, if
the proposed project is withdrawn or denied, the design will be reevaluated at the intersection.
The vertical design will match existing grades where possible and adhere to County design
guidelines. Where the proposed design deviates from County guidelines, approval for variances
will be sought as early as possible. The vertical design will be used to extend the roadway
corridor grading with some touchup grading in key places. The proposed vertical design will tie
into existing grades within the ultimate right-of-way unless approval is granted by the County
staff after review of the viable options. Cross sections will be generated every 50 feet along the
corridor to ensure proposed improvements meet the constraints listed above. All variances to
6
existing County guidelines and design standards will be requested in writing with a written
description of the conditions that require the variance.
The following items have not been included as part of the proposal as these services have not
been specifically requested and would be considered additional services if desired by Weld
County.
• Investigation of underground utilities beyond a preliminary line locate (one call)
• Identification of surface utilities beyond a preliminary line locate (one call)
• Project permitting
▪ Exhibits for public meetings
Geotechnical investigation and pavement design
Traffic study (third party)
• Construction administration
• Construction cost estimate
• Construction drawings
Technical specifications
• Traffic control plans and traffic control
• City, State or Federal review submittals
No 404 permitting or delineation of wetlands
Preparation of or submittal of floodplain mapping analysis or changes to the floodplain
Generation of hydrology for floodplain analysis.
Construction quality control/quality assurance
Deliverables: The product delivered to the County will include an electronic file in AutoCAD 11
format utilizing Civil 3D with points exported in comma -separated values (csv)
file format. Discussion drawings and drawings for staff review will be provided
without a title block. A north arrow and scale will be referenced. Contractor will
not include drawings for construction or specifications.
Task 5: Drainage and Floodplain Analysis
The roadway will require several drainage culverts to pass historical flows (predominately from
east to west) under the roadway. These culverts will require a hydrologic analysis to determine
the design flows and a hydraulic analysis to determine the culvert size required to pass the design
storm event. This is critical to vertical design of the road and to ensure adequate cover is
designed for the proposed culvert crossings. No erosion control or water quality features are
7
proposed for design. No driveway culverts are proposed for design or sizing in the scope of this
work.
In addition to the drainage requirement, the Jim Creek floodplain crosses WCR 49 approximately
3,000 feet north of Interstate 76. The location of this crossing has potential to change and the
width of the crossing will increase causing a potential change in elevation of the floodplain. A
hydraulic model of the crossing will be prepared using HEC-RAS for both the existing and
proposed conditions. The design of the crossing will be done to limit the impact to the
floodplain utilizing standard box culverts.
Deliverables: A summary of the drainage and floodplain findings and assumptions will be
provided in memo form along with all the electronic files to document the design.
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Exhibit B
COMPENSATION SCHEDULE
The total cost of the professional services described in this proposal shall not exceed $282,548.
This lump -sum budget includes all direct and indirect expenses incurred by Contractor in
performing the services. The breakdown of project cost by task is presented below. County will
be billed monthly based on percent completion of individual tasks.
Task Cost
1: Meetings, Coordination and Regulatory Support
2: Surveying
3. Utility Mapping and Potholing
4. Road Design
5. Drainage & Floodplain Analysis
Total
$29,110
$48,484
$6,718
$167,849
$30,387
$282,548
Additional Contractor services beyond those specified in the scope of services will be negotiated
separately or billed on a time plus expense basis.
9
TETRA TECH
July 31, 2013
Ms. Elizabeth Relford
Weld County, Department of Public Works
1111 H Street
PO Box 758
Greeley, Colorado 80632
Subject: Proposal for Civil Engineering Design, Surveying, and Utility Mapping for Weld County
Road 49 Improvements
Dear Ms. Relford,
Thank you for requesting our proposal to provide civil engineering and surveying services for Weld
County Road (WCR) 49. The estimated project boundaries are defined on the south by Interstate 76
and extend north one half mile past WCR 22 for an approximate length of 3.5 miles. This portion of
work overlaps a portion of WCR 49 that we are currently designing for Anadarko Petroleum Corporation
(APC). Based on our meeting with you, 609 Consultants, and APC staff, we understand Weld County
plans to improve the existing WCR 49 by reconstructing the existing two-lane road to a four -lane road
as seen in the "WCR Corridor Typical Section" provided to us by Mr. Wayne Howard of Weld County
and in the DRAFT WCR 49 Access Control Plan.
SCOPE OF WORK
Task 1: Meetings, Coordination, and Regulatory Support
Tetra Tech will join Weld County personnel for a project kick-off meeting, and we have assumed up to
four other "face to face" meetings to discuss project progress and planning and to address any issues
or concerns that Weld County may have regarding the work. Intermittently we plan on regular contact
between key personnel from both Weld County and Tetra Tech. We also anticipate some coordination
with Colorado Department of Transportation in the connection to Interstate 76 and coordination with
Town of Hudson as they have annexed portions of WCR 49. Tetra Tech will distribute meeting minutes
within two days of any meeting with County staff, State staff, or City of Hudson staff for attendee review
and approval. Final meeting minutes will be distributed to the County and the meeting attendees.
Task 2: Surveying
Tetra Tech plans to utilize 609 Consultants to conduct a topographic survey and prepare a base
electronic drawing in state plane coordinate system. This electronic drawing will include topographic
survey data 200 feet on either side of the current roadway centerline. The drawing will incorporate
survey that extends one-half mile north of WCR 22 on the northern boundary to the south side of the
Interstate 76 intersection with WCR 49. The drawing will include section lines and markers, property
lines and pins (where found), one -foot contours, fences, building corners, existing centerline and edge
of pavement, culvert locations and sizes, and utility locations as defined by the 811 Utility Notification
Center of Colorado (UNCC). Survey cross section data will be collected approximately each 100 lineal
Tetra Tech
3801 Automation Way, Suite 100, Fort Collins, CO 80525
Tel 970.223.9600 Fax 970.22317171 www. tetratech.com
Proposal for WCR 89 ftmprovennents
July 3I, 2013
feet of roadway. Additional survey will be done upstream and downstream of the Jim Creek crossing of
WCR 49 to assist in floodplain analysis.
Task 3: Utility Mapping and Potholing
Tetra Tech will provide the locations of the existing utilities within the project constraints as determined
by using the 811 UNCC locate system. This comprises the current right of way as well as the proposed
ultimate right of way including potential centerline re -alignments. The locations will be verified by
potholing in critical locations to determine the depths and types of utility lines as well as the horizontal
alignment. This information plus the horizontal mapping of the utilities will be provided electronically.
This proposal includes twenty pothole locations. Should the need for additional potholing arise we will
seek County approval and subsequently bill on a time and material basis.
Task 4: Road Design
In collaboration with Weld County, Tetra Tech will develop a final design for the proposed segment of
WCR 49 in accordance with Weld County Engineering Design Guidelines, Weld County Road 49
Access Control Plan, and Colorado Department of Transportation's Roadway Design Guide. The
proposed work includes utilizing a recommended typical road section to develop a horizontal layout,
and vertical design that meets the horizontal and vertical constraints in the project corridor. The
horizontal layout will include any relocation of roadway centerline to accommodate existing constraints
such as homes, utilities, and existing rights -of -way (as required).
The WCR 49 connection to Interstate 76 is proposed to maintain the current WCR 49 underpass in its
existing location and section. The transition of WCR 49 to a four lane road is proposed to occur as a
connection to the on and off ramps of the westbound lanes of Interstate 76. The connection will be
designed to meet Colorado Department of Transportation's Roadway Design Guide (2005).
The lane configurations at intersections with recommended turn lanes (including tapers and stacking
lengths) shall be provided by Weld County. Specifically, this includes the intersection of WCR 49 with
WCR 22 and Interstate 76. The turn lane design for WCR 18.5 will be provided by APC's traffic
engineer as long as their point of access for their proposed project remains WCR 18.5. If APC's point
of access to WCR 49 changes, Weld County will need to provide turn lane recommendations for WCR
18.5. Tetra Tech will not make recommendations for turn lanes or controlled intersections.
The vertical design will match existing grades where possible and adhere to County design guidelines.
Where the proposed design deviates from County guidelines, approval for variances will be sought as
early as possible. The vertical design will be used to extend the roadway corridor grading with some
touchup grading in key places. The proposed vertical design will tie into existing grades within the
ultimate right-of-way unless approval is granted by the County staff after review of the viable options.
Cross sections will be generated every 50 feet along the corridor to ensure proposed improvements
meet the constraints listed above. All variances to existing County guidelines and design standards will
be requested in writing with a written description of the conditions that require the variance.
The product delivered to the County will include an electronic file in AutoCAD 11 format utilizing Civil
3D with points exported in comma -separated values (csv) file format. Discussion drawings and
drawings for staff review will be provided without a title block. A north arrow and scale will be
referenced. Tetra Tech will not include drawings for construction or specifications; however, should the
County need assistance with those, we would be glad to provide a proposal to do so.
TETRA TECH 2
Proposal for WCR 49 Improvements
July 31, 2013
Task 5: Drainage and Floodplain Analysis
The roadway will require several drainage culverts to pass historical flows (predominately from east to
west) under the roadway. These culverts will require a hydrologic analysis to determine the design
flows and a hydraulic analysis to determine the culvert size required to pass the design storm event.
This is critical to vertical design of the road and to ensure adequate cover is designed for the proposed
culvert crossings. No erosion control or water quality features are proposed for design. No driveway
culverts are proposed for design or sizing in the scope of this work.
In addition to the drainage requirement, the Jim Creek floodplain crosses WCR 49 approximately 3,000
feet north of Interstate 76. The location of this crossing has potential to change and the width of the
crossing will increase causing a potential change in elevation of the floodplain. A hydraulic model of
the crossing will be prepared using HEC-RAS for both the existing and proposed conditions. The
design of the crossing will be done to limit the impact to the floodplain utilizing standard box culverts.
A summary of the drainage and floodplain findings and assumptions will be provided in memo form
along with all the electronic files to document the design. Should the County need assistance with a
submittal to the Federal Emergency Management Agency (FEMA) for a Conditional Letter of Map
Revision or any other mapping issues, Tetra Tech would be pleased to assist, but this effort is not
included in this proposed scope.
PROJECT TEAM
Tetra Tech, a leading provider of specialized management consulting and technical services, offers an
array of infrastructure and environmental services to a diverse base of public and private sector clients.
Our management consulting services are complemented by our technical services including research
and development, applied science, engineering and construction management, operations and
maintenance, and restoration and remediation. Founded in 1966, Tetra Tech has more than 13,000
employees located in 330 offices worldwide. Using the combined expertise of its various subsidiaries,
Tetra Tech has consistently ranked in the top 10 percent of Engineering News Record's Survey of the
Leading 500 Design Firms.
Tetra Tech's Fort Collins, Colorado, office has more than 50 employees specializing in civil
infrastructure, geotechnical engineering, and water resources engineering. The primary project team is
headed in the Fort Collins office by Tom Chapel. The team will include Amber Kauffman as project
engineer, Caleb Stock as design engineer, and Daniel Montez for assistance in computer aided drafting
and design. The combined team represents over 65 years of experience in civil infrastructure.
Additional resources will be utilized as necessary. A brief biography of each project team member is
provided below.
Tom Chapel, CPG, PE
Mr. Chapel has over 30 years of geotechnical, civil, geologic, forensic, and construction experience on
a variety of projects. He is the manager of the Geotechnical Engineering Group in Tetra Tech's Fort
Collins, Colorado office. Mr. Chapel has served as the Project Manager, Project Engineer, lead
investigator, and/or technical reviewer for transportation, water resources and public works projects,
expansive soils design, forensic studies, commercial buildings and commercial developments,
residential and master planned communities, geo-hazard investigations and geologic studies, mining,
and environmental projects. Mr. Chapel has written specifications and work plans for roadway and
runway design, performed pavement analysis and design, investigated unstable soils, performed
TETRA TECH 3
Proposal for WCR 49 Improvements
July 31, 2013
stabilization and mitigation studies, and provided engineering consultations on a wide variety of
geotechnical projects and problems.
Amber Kauffman, PE, CFM
Ms. Kauffman is a registered Professional Engineer and a Certified Floodplain Manager. She has more
than 13 years of experience and specializes in general civil and water resources projects including site
design and grading; roadway design; utility master planning, analysis, and design; stormwater analysis
and design; and floodplain analysis.
Caleb Stock, PE
Mr. Stock has more than eight years of professional experience in general civil design applications
including road section and layout design, and in geotechnical engineering applications including slope
stability analysis, seepage analysis, settlement analysis, reclamation design, levee inspection, drilling
oversight, construction materials testing, excavation observations, construction specifications,
construction oversight, soil mechanics laboratory testing and analysis, and technical report and
proposal writing.
Daniel Montez
Mr. Montez has over 14 years of civil drafting and design experience which include piping
infrastructure, road and dam design and rehabilitation, water/wastewater design utilizing AutoCAD
software, Land Development Desktop, Civil 3D (2007 through 2011), Architectural Desktop, Cadworx,
Revit Structure Suite 2010, and Mechanical Desktop.
ASSUMPTIONS
Tetra Tech made the following assumptions relative to this proposal:
Weld County will communicate property restrictions to Tetra Tech prior to design
commencement.
• Weld County will provide a pavement section and typical roadway corridor cross -sections prior
to design commencement.
• Weld County will provide design criteria for any required turn lanes including stacking and taper
lengths.
• None of the WCR 49 intersections will be signalized intersections.
Design criteria will be based upon the Weld County Engineering and Construction Criteria
manual dated April 2012.
• Weld County personnel will be available to review and comment on preliminary layouts.
• Weld County will perform all duties to obtain easements or rights -of -way required for the project
prior to construction. Assistance from Tetra Tech beyond mapping the utilities will not be
required.
• Weld County will provide Jim Creek design flows for floodplain analysis.
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Proposal for WCR 49 improvements
July 31, 2013
• The primary project deliverable will be electronic design files in AutoCAD 11 format provided by
Tetra Tech to Weld County supplemented by the required drainage and floodplain analysis files
such as HEC-RAS files and calculations.
TETRA TECH EXCLUSIONS
The following items have not been included as part of the proposal as these services have not been
specifically requested. However, Tetra Tech is available to provide the following scope items as
additional services if desired by Weld County.
• Investigation of underground utilities beyond a preliminary line locate (one call)
• Identification of surface utilities beyond a preliminary line locate (one call)
• Project permitting
• Exhibits for public meetings
• Geotechnical investigation and pavement design
• Traffic study (third party)
• Construction administration
Construction cost estimate
• Construction drawings
• Technical specifications
• Traffic control plans and traffic control
• City, State or Federal review submittals
No 404 permitting or delineation of wetlands
• Preparation of or submittal of floodplain mapping analysis or changes to the floodplain
Generation of hydrology for floodplain analysis.
• Construction quality control/quality assurance
COST ESTIMATE AND SCHEDULE
We propose to provide the above services in accordance with the attached 2013 Schedule of Charges.
Our fee will not exceed $282,548 without prior approval. A summary of anticipated fees is provided
below. If this proposal is acceptable, Tetra Tech would be pleased to provide our consulting services
agreement for your review; or negotiate acceptable terms based on Weld County's contract for
consulting services.
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Proposal for WCR 49 0 mprovements
July 31, 2013
Task No. Task Description
1 Meetings, Coordination and Regulatory Support
2 Surveying
3 Utility Mapping and Potholing
4 Road Design
5 Drainage and Floodplain Analysis
Total
Estimated Fee
$29,110
$48,484
$6,718
$ 167,849
$ 30,387
$282,548
Tetra Tech's staff works efficiently to protect the integrity of project budget estimates along with
minimizing client costs wherever possible. Any additional services outside of the scope of work
identified above and authorized by Weld County will be performed in accordance with our attached
schedule of fees.
Our staff will work diligently to complete these services in an expeditious manner. We can begin work
immediately upon notice to proceed given the assumptions listed above and anticipate completing the
proposed scope of work in 18 weeks (four months). Tetra Tech will work with Weld County to adjust
schedules as needed.
Thank you for the opportunity to provide these services. Please contact Tom Chapel
tom.chapeltetratech.com [970.206.4237] or Amber Kauffman amber.kauffmanRtetratech.com
[970.206.4346] with any questions.
Sincerely,
Tetra Tech
Amber Kauffman, PE, CFM
Project Engineer
Attachments: Schedule of Charges 2013
Thomas A. Chapel, PG, PE
Principal Engineer
TETRA TECH 6
ATTACHMENT A: SCHEDULE OF CHARGES
TETRA TECH
• TETRA TECH
SCHEDULE OF CHARGES
2013
Our services are normally rendered on a time and expense basis according to the following schedule.
PERSONNEL
Principal IV $275/hour
Principal III $262/hour
Principal II $250/hour
Principal I $235/hour
Sr. Consultant II $217/hour
Sr. Consultant I $205/hour
Sr. Project Manager III $192/hour
Sr. Project Manager II $182/hour
Sr. Project Manager I $172/hour
Project Engineer/Scienfist/Manager IV $165/hour
Project Engineer/Scientist/Manager III $155/hour
Project Engineer/Scientist/Manager II $140/hour
Project Engineer/Scientist/Manager I $130/hour
Sr. Staff $120/hour
Staff II $110/hour
Staff I $100/hour
Sr. Technician $90/hour
Technician IV $82/hour
Technician III $78/hour
Technician II $73/hour
Technician I $68/hour
Certified Industrial Hygienist $160/hour
Construction Services Manager $120/hour
Sr. GIS $135/hour
GIS II $113/hour
GIS I $98/hour
Sr. AutoCAD $120/hour
AutoCAD III $108/hour
AutoCAD II - $100/hour
AutoCAD I $90/hour
Project Controls Specialist III $138/hour
Project Controls Specialist II $118/hour
Project Controls Specialist I $98/hour
Document Management III $135/hour
Document Management II $105/hour
Document Management I $83/hour
Project Assistant $77/hour
Sr. Word/Data Processor $68/hour
Word/Data Processor/Project Support $65/hour
Clerical $58/hour
Expert Testimony 2.0 x hourly rate
COMPANY VEHICLES AND EQUIPMENT
4 -WD field vehicle $70/day & $0.75/mile
2 -WD field vehicle $55/day & $0.65/mile
Field Equipment Available On Request
Health and Safety Equipment Available On Request
ADMINISTRATIVE EXPENSES 5%
An administrative fee of 5% will be added to labor billings to cover miscellaneous direct costs such as reproduction
equipment, postage, computers and communications.
NON -LABOR EXPENSES Cost plus 15%
Food, lodging, travel, field supplies.
OUTSIDE SERVICES Cost plus 15%
Common outside services include laboratory testing, subcontractors, equipment rental, well construction materials,
installed equipment, special insurance.
Tt-MMI 01.01.2013
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