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Caltrans District 4 | Bay Area Projects
Alameda | Contra Costa | Marin | Napa | San Francisco | San Mateo | Santa Clara | Solano | Sonoma
List of Completed Projects here.Alameda County
- 80 New San Francisco Oakland Bay Bridge
- 13 Ashby Resurfacing Project http://www.dot.ca.gov/dist4/13ashbyresurface/
- 84 Dumbarton Bridge http://www.dot.ca.gov/dist4/dumbarton/
- 84 | SR84 Niles Canyon Safety Improvements http://www.dot.ca.gov/dist4/nilescanyon/
- 238 Mission Rehab http://www.dot.ca.gov/dist4/238mission/
- 238 Hayward Bypass Program http://www.dot.ca.gov/dist4/238hayward
- 680 Southbound Expresslane Project HOT http://www.dot.ca.gov/dist4/680hov/
- 880 | 880 Mission Project http://www.dot.ca.gov/dist4/880_mission/
- 880 Corridor Project 880 Corridor Project Page http://www.i880corridor.com/
Contra Costa County
- 4 State Route 4 Widening At Loveridge Road http://widensr4.org
- 4 State Route 4 Bypass Widening http://sr4bypass.org/
- 24 Caldecott Improvement Project http://www.caldecott-tunnel.org
- 80 Eastbound HOV Lane Project SR-4 to Carquinez Br http://www.dot.ca.gov/dist4/80ebhov/
- 580 Scofield Avenue Bridge Deck Replacement http://www.dot.ca.gov/dist4/580scofieldave/
- 160 Antioch Bridge http://www.dot.ca.gov/dist4/antioch/
- 680 Interstate 680 Roadway Rehabilitation http://www.dot.ca.gov/dist4/680ccrehab/
- 680 New Benicia-Martinez Bridge http://www.dot.ca.gov/dist4/benicia/
Marin County
- 101 HOV Project, San Rafael http://www.dot.ca.gov/dist4/marin101hov
- 101 Marin Sonoma Narrows Widening http://www.dot.ca.gov/dist4/msn
- 580/101 Connector Ramp http://www.dot.ca.gov/dist4/580101connector/
Napa County
- 12 Jameson Canyon Road Widening Project http://www.dot.ca.gov/dist4/12jamesoncanyon/
- 121 Napa County Duhig Road to Sonoma/Napa County http://www.dot.ca.gov/dist4/121napa/
San Francisco County
- 80 The West Approach Project http://www.baybridgeinfo.org/
- 80 New San Francisco Oakland Bay Bridge
- 101 Doyle Drive / Presidio Parkway http://presidioparkway.org/
- 280 PCC Pavement Replacement and Grinding Project http://www.dot.ca.gov/dist4/280pcc/
San Mateo County
- San Mateo Hayward Bridge Retrofit http://www.dot.ca.gov/dist4/sanmateoretrofit/
- 1 Calera Parkway Widening http://www.dot.ca.gov/dist4/caleraparkway/
- 1 Devil's Slide Tunnel Project http://www.dot.ca.gov/dist4/dslide
- 101 Auxiliary Lane University to Marsh http://www.dot.ca.gov/dist4/101auxunivmarsh/
Santa Clara County
- 17 Capital Maintenance Paving Project http://www.dot.ca.gov/dist4/17larkpaving
- 17 Wet Pavement Project http://www.dot.ca.gov/dist4/17wetpaving/
- 85 Pavement Rehabilitation Project 85 Pavement Rehabilitation Project
- 85 AC Resurfacing Project http://www.dot.ca.gov/dist4/85acresurfacing/
- 101 Santa Clara Auxiliary Lanes Project http://www.dot.ca.gov/dist4/scl101auxlanes/
- 101 and 85 Pedestrial Overcrossings, City of Mountainview http://www.mountainview.gov/
- 101 Capital Preventative Maintenance Project http://www.dot.ca.gov/dist4/101capitolprevent/
- 101 Tully Road Improvements http://www.dot.ca.gov/dist4/101tullyroad/
- 152 Uvas Creek Bridge http://www.dot.ca.gov/dist4/152uvascreek/
- I-237 / I-880 Express Lane Project http://www.dot.ca.gov/dist4/237880express/
- 280 Ramp Metering and Ramp Widening Project, San Jose http://www.dot.ca.gov/dist4/280meteringramp/
- 280/880 Stevens Creek http://www.dot.ca.gov/dist4/280880stevenscreek
- 680 Southbound Expresslane Project HOT http://www.dot.ca.gov/dist4/680hov/
- 880 HOV Lane Project http://www.dot.ca.gov/dist4/880hovbrokaw/
- 880 ACResurfacing Project http://www.dot.ca.gov/dist4/880acresurfacing/
- 880 Mission Project http://www.dot.ca.gov/dist4/880_mission/
Solano County
- Delta Region Ferries http://www.dot.ca.gov/dist4/deltaferries/
- 12 Route 12 Improvements in Solano County http://www.dot.ca.gov/dist4/route12solano/
- 12 Jameson Canyon Road Widening Project http://www.dot.ca.gov/dist4/12jamesoncanyon/
Sonoma County
- 37 Resurfacing http://www.dot.ca.gov/dist4/37resurfacing/
- 101 Widening between Cotati and Rohnert Park http://www.dot.ca.gov/dist4/101centralproject/
- 101 Santa Rosa HOV Widening http://dot.ca.gov/dist4/son101/
- 101 Marin Sonoma Narrows Widening http://www.dot.ca.gov/dist4/msn
- 101/Wilfred Avenue, FWY Widening Project http://www.dot.ca.gov/dist4/wilfredave/
- 128 128 Russian River Emergency Bank Stabilization http://www.dot.ca.gov/dist4/128russianriver/
- 128 Redwood Creek/Maacama Creek Bridge Replacement http://www.dot.ca.gov/dist4/sonoma128bridges/