The latest Caldecott Tunnel construction update | 511 Contra Costa

The latest Caldecott Tunnel construction update


 
Just in – new numbers and a new graphic for the Caldecott Tunnel construction:

  • East side topheading: 1705 feet
  • West side topheading: 233.9 feet

With nearly 590 meters tunneled and just over 400 meters left to go, the top heading of the Caldecott Tunnel Fourth Bore is now 60% complete!
Read more about the Caldecott Tunnel Fourth Bore project:

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