For City Council Meeting July 25, 2023
TO: Honorable Mayor and City Council
APPROVAL: Arron Brown, Acting City Manager
FROM: Tim Sullivan, Director of Maintenance and Facilities
Title
Request City Council to: (1) Delegate Additional Authority for Change Orders in the Cumulative Amount of $500,000 to Calmex Engineering Inc., a California Corporation for the Street Overlay & Reconstruction Project Riverside Avenue from I-10 to the Southern City Boundary, City Project No. 180807; and (2) Authorize the Acting City Manager to Execute all Related Documents.
(ACTION)
Body
BACKGROUND:
On May 10, 2022, the City Council awarded a Construction Contract to Calmex Engineering Inc., a California corporation, in the amount of $9,736,123.06 for the Street Overlay & Reconstruction Project (Riverside South), City Project No. 180807.
On January 25, 2023, the City Council approved the delegation of additional change order authority in the cumulative amount of $850,000 for the addition of two (2) new right turn lanes at Santa Ana Avenue and Resource Drive from southbound Riverside Avenue.
On April 25, 2023, the City Council approved the delegation of additional change order authority in the cumulative amount of $350,000 to correct the Continuously Reinforced Concrete Pavement (CRCP).
ANALYSIS/DISCUSSION:
The Riverside South project has been substantially completed and is in the process of project closeout. Staff is recommending the appropriation of additional change order authority in the amount of $500,000 to compensate Calmex Engineering Inc. for close out work. Costs include additional unclassified excavation to eliminate the existing varied crossfall and "quarter crowns" ranging from 2.5% to 6% and provide a consistent roadway crossfall closer to 2%. This improvement results in better drainage, increased commuter safety, and an overall smoother road. Other costs include increased asphalt quantities and unforeseen site conditions encountered upon the construction of the ...
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