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The Caldecott Tunnel fully reopened Friday night following a partial closure due to a blown transformer, Caltrans officials said.
The mechanical issue, which was caused by a string of powerful storms that slammed into the Bay Area this week, shut down bores 1 and 3 of the Caldecott Tunnel on Wednesday evening, causing delays on Highway 24, a key connector between Alameda and Contra Costa counties.
As a result, Bore 2 was being used for eastbound traffic Friday, while Bore 4 was open to westbound motorists. Traffic was heavily backed up in both directions Friday afternoon.
Caltrans spokesperson Hector Chinchilla said the tunnel was fully reopened by 5 p.m. Friday. A temporary generator is being used until permanent repairs can be made, according to the agency.Caltrans plans to share updates about the situation on its X page. Motorists may also call 800-427-7623 for more information.
Staff writer Jason Green contributed to this report. Check back for updates.
