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:
- The Official Fourth Bore Project website
- The 511CC Caldecott Blog
- Fossils that Caltrans is digging up
- Special precautions crews must take as they dig through the “gasey” rock.
