HomeMy WebLinkAboutStanley Conssultants - Supp Agmnt #1 - 10/21/2019SUPPLEMENTAL AGREEMENT NO. 01
This Supplemental Agreement, made and entered into by and between STANLEY CONSULTANTS, INC
(Consultant) and CITY OF WATERLOO (Client) amends their agreement of March 11, 2019, for Consultant to
provide services to the Client for the Delane Avenue Storm Water Detention Improvements Project, as follows:
Scope of Services
Analyze additional alternatives to include:
1. Improve downstream conveyance
1.1 Twin 10'x6' box culvert (1977 study recommendation)
1.2 Twin 6'x'5' box culvert (this matches existing size of box under US 63)
1.3 Parallel 60" pipe (install parallel pipe using approximately the same sizes as existing)
2. Detention with downstream conveyance
2.1 Devonshire park (off-line)
2.2 Devonshire park plus school property (off-line)
3. Detention only
3.1 Devonshire park (off-line)
3.2 Devonshire park plus school property (off-line)
3.3 Devonshire park plus cemetery plus upstream City property (on-line)
3.4 Multiple detention basins (on-line) (upper at cemetery area and lower at Devonshire
park)
4. Improve upstream conveyance / bypass Devonshire storm sewer to downstream conveyance
Document findings and results for each alternative in a report. Recommend up to three alternatives
with description of each alternative, a concept sketch and estimate of probable construction cost.
Provide draft report in PDF format for review and respond to comments and then issue a final report.
Time of Beginning and Completion
Beginning October21, 2019.
Ending November 30, 2019
Fees and Payments
Hourly Basis for Labor a Not -to -Exceed Amount of Sixteen Thousand Seven Hundred Eighty ($16,780.00) dollars.
Except as specifically amended by this Supplemental Agreement, all the terms and
Agreement dated March 11, 2019 shall remain in full force and effect.
IN WITNESS WHEREOF, the parties have caused this Supplemental Agreement to
below indicated.
By:
iti.MAJ.Orz
Daniel R. Fullerton, P.E.
Client Service Manager
By: t
Date: 10/15/2019 Date:
Attest: Attest:
By: By:
Wendy Diekema
28839 CityotWaterloo_DelaneDetentionReview SuppAgree01
SC3881 1014
conditions of the original
be executed on the date
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