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Caldecott EB #2 Bore Overnight Closure: June 16-18, 10pm-4:30am

Posted on June 16, 2025June 16, 2025

Caltrans has scheduled overnight closures of Bore 2 of the Caldecott Tunnel on Eastbound State Route 24 (SR-24) for tunnel washing and maintenance.

Caldecott Tunnel Bore #2 will be closed the nights of Monday, June 16, through Wednesday, June 18, from 10am to 4:30pm for tunnel washing and maintenance. During the work, all other bores will remain open. 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.

For 24/7 traffic updates, follow 511cc.org on X (formerly Twitter).
For real-time traffic, visit Caltrans QuickMap.
For more information about Caltrans D4 projects, visit Caltrans D4 Current Projects.

Caldecott EB #4 Bore Overnight Closure May 7, 10pm-4:30am

Posted on May 7, 2025May 7, 2025

The EB Bore #4 of the Caledcott Tunnel will be closed from 10pm to 4:30am on Wednesday, May, for scheduled maintenance work. Work will wrap up by 4:30am on Thursday, May 8. During the maintenance work, all other bores will remain open.

Expect delays. Please drive slowly through the Cone Zone.

For 24/7 traffic updates, follow 511cc.org on X (formerly Twitter).
For real-time traffic, visit Caltrans QuickMap.
For more information about Caltrans D4 projects, visit Caltrans D4 Current Projects.

Caldecott Tunnel EB #2 Bore Overnight Closures June 22 at 10pm to June 24 at 4am

Posted on June 22, 2022June 22, 2022

The EB Bore #2 of the Caledcott Tunnel will be closed 6/22 and 6/23 from 10 PM to 4 AM each night for scheduled maintenance work. All other bores will remain open.

Caldecott Tunnel EB #2 Bore Overnight Closures May 31 at 10pm through June 3 at 4am

Posted on June 1, 2022June 1, 2022

Overnight closures of the eastbound #2 bore of the State Route 24 (SR-24) Caldecott Tunnel will occur Tuesday, May 31 through the morning of Friday, June 3. Closures will start each evening at 10pm and will last until 4am the following morning.

Caldecott Tunnel EB Right Bore Closure May 5 at 10pm through May 6 at 4:30am

Posted on May 5, 2022June 1, 2022

Caltrans has scheduled an overnight closure of the eastbound CA-24 Caldecott Tunnel right bore, due to tunnel maintenance work. The closure will take place on Thursday, May 5 from 10:00 PM until 4:30 AM the following morning. During the closure, all other bores in each direction will remain open.

Caldecott Tunnel Bore #1 Closure Overnight 1/12

Posted on January 11, 2022March 21, 2023

Caltrans has scheduled an overnight closure of the #1 bore of the Caldecott Tunnel on Wed., Jan.12 at 10pm through Thurs., Jan. 13 at 4:30am. The temporary closure is due to tunnel maintenance.

Caldecott Tunnel WB Left Bore Closed – December 9, 10pm to 4:30am

Posted on December 9, 2021December 9, 2021

Caltrans has scheduled an overnight closure of westbound CA-24 Caldecott Tunnel left bore due to tunnel maintenance work. The westbound closure will take place on Thursday, December 9 between the hours of 10pm to 4:30am. During the closure, all other bores in each direction will remain open.