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Boring Drillers Touch Augers On Orinda-Oakland Tunnel Project

Crews excavating a fourth bore to the Caldecott Tunnel broke through from opposite ends and met in the middle for the first time Tuesday.

An underground milestone in the $390 million Caldecott Tunnel Fourth Bore Project was reached as teams of drillers boring into the hillside from both ends of the project met in the middle for the first time Tuesday.

Project spokeswoman Ivy Morrison said the link-up was accomplished at approximately 2:45 p.m. and marks a major step forward for the project, built to relieve congestion on Highway 24 between Orinda and Oakland, and expected to be completed in late 2013.

The project is a partnership between the Federal Highway Administration, Caltrans, the Metropolitan Transportation Commission, the Contra Costa Transportation Authority, and the Alameda County Transportation Commission.

Check out the video. Guaranteed to excite engineers and construction guys.

Chris Nicholson November 30, 2011 at 07:07 PM
Very cool. What a great experience for the workers to have. They'll be sharing this moment with their grandchildren.
Carol Ann Long November 30, 2011 at 07:45 PM
My gophers could have done it in half the time!
Ahmed November 30, 2011 at 08:43 PM
Very cool technology
Kathleen November 30, 2011 at 09:11 PM
Wonderful video. CalTrans' public information office is on the ball! (They're probably thrilled to have something positive to talk about)
Lafayette Curmudgeon November 30, 2011 at 10:13 PM
When I was a kid, my Dad used to tell me the reason there were three tunnels was that they didn't plan the second tunnel right and the crews went right past one another. I stopped believing that when I was about six. Alas, I won't be able to tell my daughter the same lie now that there are four tunnels. (Well, I could just say they missed twice!).
X November 30, 2011 at 11:58 PM
I can't believe that April will mark 30 years since the fire...
dave in moraga December 01, 2011 at 12:00 AM
Gophers? Did you ever see the Fantastic Mr. Fox at work?
dave in moraga December 01, 2011 at 12:03 AM
Cool video, ok...Have you ever seen high-explosives at work? Doh! Another missed opportunity to blow something up or out as it were.
Eileen December 01, 2011 at 02:09 AM
Fun to watch. My kids' reaction? "It's just like the scene with the Underminer from The Incredibles movie!"
Brent Bamberger December 01, 2011 at 07:43 AM
It's the most exciting boring video i've seen all night.

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