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Monday, April 27, 2026 7:39PM

Caldecott Tunnel bores to close overnight this week amid maintenance

ORINDA, Calif. (KGO) — Caltrans is warning East Bay commuters about upcoming overnight closures of the Caldecott Tunnel this week.

Bores 1, 2, and 4 will be closed on Highway 24, Monday through Thursday, from 10 p.m. to 4:30 a.m. the next morning.

Only one bore will be closed at a time, with the other tunnels remaining open to traffic.

Caltrans says the closures are needed for cable relocation, tunnel washing, and routine maintenance.

Here’s the schedule:

Monday night, eastbound Bore #1 will close
Tuesday night, eastbound Bore #2 will close
Wednesday and Thursday nights, westbound Bore #4 will closeNow Streaming 24/7 Click Here

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