The Herald of Everett, Washington
Customer service  |  Subscribe   |   Log in or sign up   |   Advertising information   |   Contact us
HeraldNet on Facebook HeraldNet on Twitter HeraldNet RSS feeds HeraldNet Pinterest HeraldNet Google Plus The Daily Herald on Linked In HeraldNet Youtube
HeraldNet Newsletters  Newsletters: Sign up  Green editions icon Green editions

Seattle tunneling machine digs past launch pit

SHARE: facebook Twitter icon Linkedin icon Google+ icon Email icon |  PRINTER-FRIENDLY
Associated Press
SEATTLE -- The machine boring a new Highway 99 tunnel under downtown Seattle has finally dug itself past its own launch pit.
The Transportation Department said Wednesday the 326-foot long machine it calls Bertha has drilled 359 feet.
Spokeswoman KaDeena Yerkan said the trailing gear has disappeared into the tunnel.
Yerkan says Bertha is operating well but is still in the initial phase with about 9,000 feet to go.
The world's largest tunnel boring machine is creating a tunnel nearly 58 feet in diameter as part of the $3.1 billion project to replace the Alaskan Way Viaduct, the double deck highway along the downtown Seattle waterfront.
Digging began July 30 but soon shut down for about a month in a labor dispute before it resumed Sept. 23.

More Northwest Headlines


HeraldNet Headlines

Top stories and breaking news updates