Creek Road Bridge Rehabilitation Project

The Creek Road Bridge Rehabilitation Project, managed by the Town of Fairfax in California, focuses on retrofitting the Creek Road Bridge over San Anselmo Creek to enhance seismic safety and prevent catastrophic failure during a Maximum Credible Earthquake. The scope of work involves implementing Caltrans approved Alternate 2 of the Seismic Retrofit Strategy Report, which includes constructing infill walls, repairing columns and bent caps, stabilizing abutments, and installing reinforced concrete waffle slabs to anchor the bridge. Additionally, the project entails deck rehabilitation through asphalt removal and crack sealing, the relocation of waterlines by MMWD, and the rerouting of a storm drain pipe. The project will not change the bridge footprint or require new rights-of-way, and it concludes with vegetation restoration in all disturbed areas. Construction is strictly limited to one dry season, generally between April 15 and October 15, with specific in-channel work restricted to June 1 through October 31 to protect fish migration cycles. Work hours are limited to weekdays from 8:00 a.m. to 5:00 p.m. and Saturdays from 9:00 a.m. to 5:00 p.m., with no noise-generating activities permitted on Sundays or holidays. The contractor must adhere to stringent environmental requirements, including the preparation of a Stormwater Pollution Prevention Plan, an Accidental Spill Prevention and Cleanup Plan, and an equipment staging plan. Staging is restricted to existing asphalt or concrete surfaces to avoid impacting sensitive areas. The project requires several regulatory permits, including a Section 404 permit from the U.S. Army Corps of Engineers, a Section 1602 permit from CDFW, and a Section 401 Certification from the RWQCB. Compliance is further ensured through weekly inspections of the staging area by a project environmental monitor.