Caldecott Fourth Bore

News and Stories

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After eight months of intense excavation on the Caldecott Tunnel fourth bore from the east end in Orinda, miners have begun to excavate from the west end in Oakland. The two holes are anticipated to...

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Five MTC-sponsored programs and projects scooped up awards at the silver anniversary of the 2014 California Transportation Foundation ceremony. The 20 awards distributed in Sacramento on May 22 honor...

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Photographer Karl Nielsen has been tracking the Caldecott Fourth Bore Project since excavation first started on the massive $402.1 million project, which is funded in part by MTC. A recent...

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Although fanfare will come at the completion of the project, actual fans are in the process of being installed inside the Caldecott Tunnel’s Fourth Bore. The 19 jet fans will run along the entirety of...

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A group of young women had a special opportunity July 29 to participate in an intimate roundtable discussion with Therese McMillan, deputy administrator of the Federal Transit Administration (FTA)...

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Local, regional, state and federal officials gathered at the eastern portal of the new Caldecott Fourth Bore this afternoon to cut a ceremonial ribbon and unveil the kid-designed decorative medallions...

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Six hexagonal medallions embedded in concrete sit high above the east and west portals of the new fourth bore of the Caldecott Tunnel. Unveiled during the opening ceremony of the fourth bore on Nov...