California Department of Transportation
11/06/2025 | Press release | Distributed by Public on 11/06/2025 15:18
State Route 24 (SR-24) Caldecott Tunnel Overnight Closure Bore #3 Maintenance Work
State Route 24 (SR-24) Caldecott Tunnel Overnight Closure Bore #3 Maintenance Work
Published: Nov 06, 2025
Monday November 10th through Wednesday November 12th 10:00 PM-4:30 AM
Alameda and Contra Costa Counties - Caltrans has scheduled overnight closures of Bore 3 of the Caldecott Tunnel on Westbound State Route 24 (SR-24) for tunnel washing and maintenance.
Starting Monday, November 10, 2025, through Wednesday, November 12, 2025, from 10:00 PM to 4:30 AM each night. Bore 3 of the Caldecott Tunnel on Westbound State Route 24 (SR-24) for tunnel washing and maintenance. During the work, all other bores in each direction will remain open. All work is weather dependent.
Traffic Control Measures:
Changeable message signs will be in place to assist motorists traveling in the area. Motorists are advised to expect delays and allow extra time. Please drive with caution through the construction zone. Slow for the Cone Zone.
For 24/7 traffic updates, follow 511.org on Twitter.
For real-time traffic, visit Caltrans QuickMap at Quickmap.dot.ca.gov.
For more information about D4 Projects, visit: Caltrans D4 Current Projects
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