HomeMy WebLinkAboutAECOM_-_SA_3,_Cont._No._1134_-_10.6.2025Docusign Envelope ID: 377E1D49-EFF1-47E3-BBBC-21846B7574E4
AECOM
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SOUTH BUSINESS PARK
WINN STREET SANITARY SEWER
CONSTRUCTION -RELATED SERVICES
CITY OF WATERLOO, IOWA
SUPPLEMENTAL AGREEMENT NO. 3
WHEREAS, a Professional Services Agreement was entered into between the City of Waterloo (Client),
715 Mulberry Street, Waterloo, Iowa, and AECOM Technical Services, Inc. (ATS), 501 Sycamore Street,
Suite 222, Waterloo, Iowa, dated January 17, 2023, for preliminary engineering service for the South
Business Park; and
WHEREAS, the Client and ATS entered into Supplemental Agreement No. 1 for the South Business
Park Platting and Final Design Services of roadway improvements along Ansborough Avenue dated
July 1, 2024; and
WHEREAS, the Client and ATS entered into Supplemental Agreement No. 2 for the South Business
Park Final Design Services of roadway improvements for the Ansborough Avenue roundabout at the
intersection with Highway 20 eastbound off- and on -ramps dated August 4, 2025; and
WHEREAS, the Client and ATS now desire to enter into Supplemental Agreement No. 3 for South
Business Park Winn Street Sanitary Sewer Construction -Related Services.
NOW THEREFORE, it is mutually agreed to amend the original Professional Service Agreement as
follows:
I. PROJECT DESCRIPTION
This project consists of the development of approximately 210 acres located in the southeast quadrant
of the Highway 20 interchange with Ansborough Avenue for the proposed South Business Park in
Waterloo, Iowa. The project will include grading, drainage, utilities, roadway and other construction
typical of a large -sale development. The development area includes approximately 182 acres zoned
Business Park (B-P) and 25 acres zoned Agriculture District (A-1).
This Supplemental Agreement includes construction -related services (CRS) for the construction of the
Winn Street Sanitary Sewer project. Construction is anticipated to begin in October 2025. It is
estimated that construction will take 40 working days, with a construction contract completion date of
May 31, 2026.
II. SCOPE OF SERVICES
The Scope of Services will encompass and include work, services, materials, personnel and supplies
necessary to provide construction -related services (CRS) for the above -referenced project. These
services will include construction staking, field review, materials testing and contract administration.
The Scope of Services is further defined as follows:
Task 1. Conduct a preconstruction conference attended by representatives of the Contractor, Client,
Consultant and affected utilities.
Task 2. Provide construction staking for horizontal and vertical controls for the project as follows:
a. Set Project Control
b. Set Project ROW, Easement and Construction Limits
c. Set Stakes for use by Contractor for GPS Grading
Docusign Envelope ID: 377E1D49-EFF1-47E3-BBBC-21846B7574E4
AECOM
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d. Set Stakes for Fence Construction
e. Set Stakes for Drainage Structures and Piping
f. Set Stakes for Sanitary Sewer Structures and Piping
Task 3. Review shop drawings and other submittals as required of the Contractor by the contract
documents for general conformance with the design concept of the project and compliance with the
information given in the contract documents.
Task 4. Answer design interpretation questions from the Client, Contractor, review staff and appropriate
agencies.
Task 5. Prepare bi-weekly applications for payment based on information provided by field review staff
and Contractor and forward to the Client for execution with recommendation for approval and payment.
Task 6. Perform construction site visits by design personnel at appropriate stages of construction to
review the quality of the work and to determine whether the work generally conforms to the contract
documents.
Task 7. Prepare and assist the Client and Contractor in processing contract change orders.
Task 8. Provide field observation during construction to review the work of the Contractor to determine
if the work is proceeding in general accordance with the contract documents and that completed work
appears to conform to the contract documents. Staffing requirements may be adjusted during the
project in relation to the level of construction activity.
Task 9. Provide weekly SWPPP reviews along with City of Waterloo and Contractor personnel, as
required by Iowa DNR and City of Waterloo.
Task 10. Report to the Client work believed to be unsatisfactory, faulty or defective or does not conform
to the contract documents and advise the Client of work that should be corrected or rejected.
Task 11. Consider and evaluate Contractor's suggestions for modifications and report them with
recommendations to the Client.
Task 12. Facilitate bi-weekly construction progress meetings of project and complete minutes for each
meeting.
Task 13. Participate in a review of the project with the Client and review staff near project completion
and prepare a list of items to be completed or corrected.
Task 14. Participate in a field observation of the completed project with the Client and review staff
before a final application for payment is processed for the Contractor.
Task 15. Maintain files for correspondence, reports of the job conferences, shop drawings and sample
submissions, reproductions of original contract documents including addenda, change orders, field
modifications, additional drawings issued subsequent to the execution of the contract, Engineer
clarifications and interpretations of the contract documents, progress reports and other project -related
documents.
Task 16. Provide the Client with a copy of revised drawings of the construction plans (record drawings)
for the project based on the construction observation records of the field review staff and the Contractor
showing those changes made during construction considered significant.
Task 17. Prepare and assist the Client with the final close-out documentation received from the
Contractor according to SRF and City of Waterloo requirements.
Docusign Envelope ID: 377E1D49-EFF1-47E3-BBBC-21846B7574E4
AECOM
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Task 18. Provide monument preservation for the project. This includes resetting property corners and
sections after construction as well as preparation and recording of plat.
III. COMPENSATION
Compensation for the above services will be on an hourly basis in accordance with Part VI of the
original agreement and shall be segregated with the fees in the original agreement and
Supplemental Agreement Nos. 1 and 2. The estimated fee is Forty -Four Thousand Six Hundred
Dollars ($44,600.00) and will not be exceeded without authorization from the Client.
IV. In all other respects, the obligations of the Client and the Consultant shall remain as specified in
the Professional Services Agreement dated January 17, 2023.
IN WITNESS WHEREOF, the parties hereto have executed this Supplemental Agreement No. 3 as of the
dates shown below:
APPROVED FOR CITY OF WATERLOO APPROVED FOR AECOM TECHNICAL
SERVICES, INC.
B : �DocuSigned by:
C t, ln, A -Mt
y Do.,2 wonnca44a...
Printed Name:
By:
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Quentin Hart Printed Name: Michelle Sweeney, PE, PTOE
Title: Mayor Title: Associate Vice President
Date: 10/6/2025
Date:
9/25/2025
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