Replace bridge & culverts, HMA, RHMA, Mod lighting & erosion control.

The California Department of Transportation (Caltrans) District 4 is soliciting bids for Contract 04-4Q3214, a major infrastructure project in Novato, Marin County. The scope of work involves the replacement of the Novato Creek Bridge and associated culverts on State Highway Route 37, spanning from 0.3 mile east of the Route 37/101 separation to 0.2 mile west of the Atherton Avenue undercrossing. Key construction activities include the installation of Hot Mix Asphalt (HMA) and Rubblized Hot Mix Asphalt (RHMA), lighting modifications, and comprehensive erosion control. The project has an estimated value of 190 million dollars and a performance timeline of 850 working days, extending to 1,100 working days when including plant establishment. Technical requirements for the project include the use of EPS geofoam blocks, stainless steel bar reinforcement, and specific lightweight cellular concrete standards. The contractor must adhere to strict environmental and regulatory mandates, including Build America Buy America (BABA) material standards, Davis-Bacon Act wage determinations, and a finalized Streambed Alteration Agreement with the California Department of Fish and Wildlife. Bidders must attend a mandatory virtual prebid meeting to be eligible for award. Electronically sealed bids are due by November 10, 2026, with the contract being awarded to the lowest responsible bidder within 60 days of the bid opening.