TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: Bob Moehling, Public Works Director
PREPARED BY: Jeff Hitch, City Engineer
SUBJECT:
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Agreement Amendment with Contech Engineered Solutions for Hayes Avenue Bridge at Miller Canyon Creek
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RECOMMENDATION
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Approve Amendment No. 1 to the Agreement with Contech Engineered Solutions for the additional amount of $130,500, to purchase a precast concrete arch-culvert system for the Hayes Avenue Bridge at Miller Canyon Creek without Notice for Bids pursuant to California Public Contract Code Section 1102, 20168, and 22050, which includes a 15% contingency in the amount of $20,000, in the event of change orders or price fluctuations; and
Authorize the City Manager to execute the amendment to the Agreement and future amendments up to the contingency amount.
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PRIOR ACTION/VOTE
On June 17, 2025, the City Council adopted Resolution No. 25-4847, declaring that Emergency Conditions persist in connection with the Hayes Avenue Bridge at Miller Canyon Creek (Vote: 5-0).
On July 1, 2025, the City Council adopted Resolution No. 25-4863, declaring that Emergency Conditions persist, appropriating funding, and approving the execution of a contract for reconstruction of the Hayes Avenue Bridge at Miller Canyon Creek (Vote: 4-0).
On August 19, 2025, the City Council adopted Resolution No. 25-4882, declaring that Emergency Conditions persist in connection with the Hayes Avenue Bridge at Miller Canyon Creek (Vote: 5-0).
On October 7, 2025, the City Council adopted Resolution No. 25-4891, declaring that Emergency Conditions persist in connection with the Hayes Avenue Bridge at Miller Canyon Creek (Vote: 5-0).
On December 2, 2025, the City Council adopted Resolution 25-4899, declaring that Emergency Conditions persist in connection with the Hayes Avenue Bridge at Miller Canyon Creek (Vote: 5-0).
CITY COUNCIL GOAL
Plan, program and create infrastructure development.
DISCUSSION
On February 6, 2025, staff encountered a pothole in the deck of the Hayes Avenue Bridge crossing Miller Canyon Creek, located generally between Ivy Street and B Street. Upon this discovery, Engineering staff believed the bridge could be unsafe and closed the bridge until further evaluation could be completed.
Using the City of Murrieta’s (City) existing on-call agreement, Michael Baker International (MBI) was asked to perform a structural evaluation of the bridge. The evaluation was performed, and a report was generated and provided to the City. The report concluded that the bridge is structurally deficient for fire truck access and needs to be replaced. The bridge has a span that is 15-feet long, is 24-feet wide, and has concrete abutments with wooden girders and decking covered with asphalt concrete. MBI subsequently provided the City with a proposal to provide environmental and engineering services for engineering plans and emergency environmental permits necessary to replace the bridge with an alternate reinforced concrete box culvert. The Regional Water Quality Control Board rejected the box culvert design, resulting in a modification of the design to an arch-span bridge structure that has a soft bottom.
On October 23, 2025, the City entered into an Agreement with Contech Engineered Solutions (Contech) to complete the structural design of the precast concrete arch-culvert for $20,000. Contech is a designer and manufacturer of various steel and concrete structures for pipe, bridges, walls, and other stormwater management devices. Contech has now completed the preliminary design of the arch-culvert.
The adoption of an emergency declaration on March 18, 2025, allowed for emergency permitting as well as foregoing the normal public works bidding requirements pursuant to Public Contract Code. Staff has received a quote from Contech in the amount of $130,500 to manufacture and deliver the arch-culvert to the project site. The culvert will be installed by a separate contractor whose contract award is anticipated in February 2026. A 15% contingency is being requested in case of change orders or price fluctuations.
Schedule
The arch-culvert, which will take eight to twelve weeks to manufacture, is anticipated to be available between mid-February to early March 2026. Construction is anticipated to take an additional four weeks and to be completed in April 2026.
FISCAL IMPACT
The amendment to the Agreement increases the total not-to-exceed contract sum by $150,500, which includes $130,500 for manufacture and delivery of the arch-culvert, plus an additional 15% contingency (approximately $20,000). Funding is available in CIP 11004. The installation of the arch-culvert bridge will be addressed under a separate contract to be presented to City Council at a later date.
ATTACHMENTS
1. Amendment No. 1 between the City and Contech Engineered Solutions
2. Vicinity Map