Welcome to the State of California
Governor Brown Brian P. Kelly Malcolm Dougherty Carrie Bowen
710 Tunnel Study
Caltrans District 7 0n Twitter
Caltrans District 7 Blog
Caltrans District 7 On Friendfeed
Caltrans District 7 on FeedBurner
Caltrans District 7 RSS Feed (Atom)
710 Tunnel Study

710 Tunnel Technical Study Information


Tunnel Educational Resources

Need more information about tunnels and tunnel systems? Check out some of these other great links for additional tunnel resources on the web!

PBS's Building Big: Who Builds Big: Tunnel Basics and Tunnel Engineers

Massachusetts' Big Dig, the most complex tunnel system in the U.S.

The Holland Tunnel in New York City, opened in 1927

Become a Tunnel Expert! Learn about how tunnels are built, types of tunnels and the planning behind tunnel construction:


To obtain construction updates about tunnels in other parts of the world, visit:


Learn about geophysical surface testing methods:


For a directory of the world's longest road tunnels, visit:


For more information on other Caltrans District 7 projects, please visit:


 Web Resources (PDF)

Back Button | Back To Page Top Link