Contra Costa & Solano Counties — Caltrans is performing essential T1 Steel Weld Inspection Project weld inspections and repairs on the Carquinez Bridge (I-80) and Benicia-Martinez Bridge (I-680). This work is critical to maintaining the ongoing structural integrity of both bridges.
Due to project supply delays, Benicia Bridge work has been suspended up to 4 weeks. Carquinez Bridge closures are now expected to continue through September 2025, weather permitting.
Schedule:
Benicia Bridge Southbound I-680 Lane Closures
- Temporarily Suspended
Carquinez Bridge Eastbound I-80 Lane/Ramp Closures
- Monday–Thursday: 3AM – 12PM
(through September 2025)
Friday: 1AM – 9AM
Full Closure: EB I-80 Onramp from Pomona St/San Pablo Ave
Lane Closures: EB I-80 Lanes 3 and 4 from Refinery Rd to Carquinez Toll Plaza
The work is critical for ongoing structural integrity and is expected to continue:
Carquinez Bridge Closures through September 2025
Benicia Bridge Closures through December 2025
All work is weather dependent and subject to change.
Drivers may experience minor delays and are advised to plan ahead and allow extra time. Be work zone alert, drive with caution through the work zone.
For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.
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