Legal Truck Access

Announcements
San Joaquin County: State Route 4 at Old River Bridge Traffic Advisory: Overlength Vehicle Advisory on STATE ROUTE 4 - Vehicles 34ft long or more advised to seek alternate route. Recommended alternative routes: SR-12 or I-205 for travel between the city of Stockton and the town of Discovery Bay. Estimated construction completion November 2026. This bridge maintenance and preservation project will make necessary upgrade and repairs of the Old River Bridge, located at the San Joaquin/Contra Costa County line. More information on this traffic advisory can be found at D10 Traffic Advisory.
Alameda County: Webster Tube and Posey Tube on Route 260 are temporarily closed to vehicles with 3 or more axles for maintenance work. Vehicles with Three or More Axles Temporarily Restricted