HomeMy WebLinkAboutA018 - Resolution approving Amendment No. 2 for the Engineering Services Agreement for the 2022/23 Shared Use Path System ExpansionITEM #:20
DATE:01-14-25
DEPT:PW
SUBJECT:2022/23 SHARED USE PATH SYSTEM EXPANSION - GRAND AVENUE
COUNCIL ACTION FORM
BACKGROUND:
This program provides for construction of shared use paths on street rights-of-way, adjacent to streets,
and through greenbelts. The Metropolitan Transportation Plan (MTP) identifies those paths that separate
bicycle traffic from higher-speed automobile traffic. This project will construct a shared use path
along the west side of Grand Avenue from Lincoln Way to 6th Street.
At the October 10, 2023, meeting, City Council approved the engineering services agreement for this
project with WHKS & Co. of Ames, Iowa in an amount not to exceed $58,100.
Through the design of the project, one amendment to the engineering services agreement has been
administratively approved by staff in the amount of $5,200 was needed to examine multiple design
options at the intersection of Grand Avenue & Allan Drive to meet CyRide's requirements for
operations in the intersection.
Preliminary design has determined that a second, small retaining wall will be needed behind the
existing Grand Avenue concrete barrier wall to accommodate the increased width of the shared-
use path in the right-of-way. The need for the retaining wall was known at the time the project was
initiated, and that cost has been factored into the project budget. However, staff did not know the
needed length of the retaining wall until later in the design process.
DOT requires soil borings along the length of the proposed new wall. Now that the wall length is
known, staff is requesting a contract change with WHKS to perform the borings and provide a
geotechnical report. WHKS & Co. has provided an amendment to perform this work in an amount of
$9,900. This brings the cumulative total of amendments to $15,100 which exceeds the 20% of original
contract total limit, thus requiring City Council approval.
Once the plans for the project are near completion, staff will begin the permitting process through the
Iowa DOT and the Union Pacific Railroad. Staff will also begin easement acquisition, as needed, to
facilitate the project. Construction is currently anticipated for 2026.
ALTERNATIVES:
1. Approve Amendment No. 2 in the amount of $9,900.
2. Do not approve the amendment and direct staff to pursue other options.
CITY MANAGER'S RECOMMENDED ACTION:
By approving this amendment, the design of this project can move forward in compliance with
Iowa DOT and retaining wall manufacturer guidelines. Therefore, it is the recommendation of the
City Manager that the City Council adopt Alternative No. 1 as described above.
1
ATTACHMENT(S):
Amendment no2 - Grand Ave SUP.pdf
2023 Aerial w Borings Protrait Trail.pdf
2
AMENDMENT NO. 2
TO PROFESSIONAL SERVICES AGREEMENT
WHEREAS, City of Ames (Client) and WHKS & Co. (WHKS) executed a Professional Services
Agreement dated October 10, 2023 for certain engineering services for 2022/23 Shared Use Path
System Expansion (Grand Ave – Lincoln Way to 6th St.) (Project), and
WHEREAS, the Agreement described a scope of services and was based on completion of certain
services, and
WHEREAS, the Client has requested Geotechnical services for the Project as described in more detail
in the Scope of Services below, and
NOW THEREFORE, the Client and WHKS hereby agree the amended compensation for services shall
be increased by the amount in Basis of Compensation below.
Scope of Services
The following Geotechnical Exploration shall be performed by a subcontractor to WHKS for the Client:
• Mobilization with all-terrain drilling equipment, obtain City of Ames and IDOT ROW permits,
contact Iowa One Call for utility locates, drill and sample 5 soil borings 20 feet deep, backfill
borings with auger cuttings, laboratory testing (includes moisture contents, dry densities, and
unconfined compressive strength tests), engineering analysis (includes slope stability), and
written report.
Basis of Compensation
For the services described above, the Client shall remunerate WHKS as follows:
Lump Sum Fee of $9,900.00 including Expenses.
Executed this day of December, 2024
City of Ames WHKS & CO.
By: By:
Printed Name: Printed Name: Derek J Thomas, PE
Title: Title: Vice President
January, 2025
3
4