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Mosquito Road Bridge

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Mosquito Bridge project for the El Dorado County Department of Transportation in Camino, CA Mosquito Bridge project with fog for the El Dorado County Department of Transportation in Camino, CA

Mosquito Road Bridge

The Mosquito Road Bridge Project consists of the construction of a 1,200 foot long cast-in-place balanced cantilever bridge approximately 300 feet over the South Fork American River gorge near the town of Placerville, CA. The project consists of the design and installation of project access roads, along with two corresponding temporary crane trestles on either side of the river. The bridge has two main piers that are over 230 feet tall from top of footing to bridge deck. The piers are founded on 36-inch CIDH piles and a set of 9-foot thick footing slabs approximately 60 feet by 60 feet in dimension. The piers require the footings to be embedded in the mountain side requiring over 10,000 square feet of soil nail and ground anchor retaining wall. The superstructure of the bridge is made up of over 68 total cast-in-place cantilever segments with the two ends of the box being cast on falsework, with the deck of the bridge receiving a polyester deck overlay. Due to the remote location of the bridge, the project is mobilizing, erecting, and operating a concrete batch plant on-site to supply the northern half of the project. This project will better connect the community Swansboro to Placerville, increasing the ability of first responders or wildfire teams to access the community.

Project Details

Location:Camino, CA
Amount: $74M
Delivery Method:Design Bid-Build
Client Name:El Dorado County Department of Transportation
Duration: 2022-2024