Welcome to Caltrans District 4
 

Caltrans District 4 | Bay Area Projects - Completed

Completed

280 PCC Pavement Replacement and Grinding Project

Completed

84 Woodside Road Slide Repair

Completed

101 Auxiliary Lane University to Marsh

Completed

13 Ashby Resurfacing Project

Completed

80 Eastbound HOV Lane Project SR-4 to Carquinez Br

Completed

New Benicia-Martinez Bridge

Completed

4 State Route 4 Bypass Widening

Completed

238 Mission Rehab

Completed

680 Interstate 680 Roadway Rehabilitation

Completed

Russian River Bank Stabilization

Completed

Antioch BridgeRetrofit

Completed

880 Mission Project

Completed

Southbound Expresslane Project HOT

Completed

238 Hayward Bypass Program

Completed

Redwood Creek/Maacama Creek Bridge Replacement

Completed

Route 12 Improvements in Solano County

Completed

80 Solano County Interstate 80 Pavement Rehabilitation Project

Completed

101 Auxiliary Lane Project

Completed

280 Crystal Springs Safety Roadside Rest Area

Completed

116/STAGE GULCH ROAD

Completed

Hunter Hill Rest Area

Completed

101 Windsor HOV

Completed

Connector Ramp

Completed

Diseased Tree Removal and Pruning Alameda, Contra Costa, San Francisco, and Santa Clara Counties

Completed

580 Maze Repair

Completed

I-238 Widening and Rehabilitation Project

Completed

Route 84 Westbound HOV Lane Extension from Newark Boulevard to I-880

Completed

Route 84 Pigeon Pass project

Completed

13 Rehabilitation Project

Completed

I80 Hilltop Drive Bridge Replacement Project

Completed

New Carquinez Bridge - Alfred Zampa Memorial

Completed

Highway 24 Rehab Project
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Completed

131 Resurfacing

Completed

Highway 1 Closure in Marin County

Completed

19th Ave/Route 1 Project

Completed

Route 87 Improvements in San Jose

Completed

Route 37 Improvements in Solano County

Completed

New Benicia-Martinez Bridge

Completed

37 Resurfacing

New Rio Vista Bridge

Completed

Route 12 Rio Vista Bridge Project 2007-2008

Completed

Storm Repair - Highway 116