Lanes reopen after water main break floods Bay Bridge tunnel
Apr 21, 2026
All lanes have reopened after a water main break flooded part of the Treasure Island tunnel on the Bay Bridge, according to the California Highway Patrol.
CHP said the No. 4 and No. 5 eastbound lanes of Interstate 80 inside the tunnel had been closed due to water on the roadway.
Crews from Cal
trans and the San Francisco Fire Department responded to the scene to resolve the issue.
It was not immediately clear how long the closures lasted.
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