Contra Costa Projects
Read the Contra Costa County Newsletter
- 80 Alameda and Contra Costa Counties Lighting and Concrete Barrier Project
- 80 Pavement Rehabilitation Project
- 242 Northbound Rehabilitation Project Concord
- 580 Richmond-San Rafael Bridge Access Improvements
- 680 & 4 Interchange
- Caldecott Tunnel Bores 1, 2, and 3 Rehabilitation and Ventilation Upgrade
- Richmond - San Rafael Bridge
- State Route 239 Project
- The Alfred Zampa Memorial Bridge: Celebrating 20 Years of Service over the Carquinez Strait