Early excavation of the Caldecott fourth bore (video) – 511 Contra Costa

Early excavation of the Caldecott fourth bore (video)

What’s it like to work on a $400 million project in California, removing tons of rock and debris along more than 3,300 feet? Watch the Caldecott Tunnel fourth bore construction crew and the 130-ton, 54-foot-long roadheader hard at work in the following Caltrans video:

For more videos, visit the YouTube page for Caldecott Tunnel fourth bore construction updates.

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