Plan advances to dig up Seattle tunnel machineMay 9, 2014 @ 10:56 am
SEATTLE (AP) -- An environmental review has been completed and the contractor trying to burrow a highway tunnel under downtown Seattle plans to start digging a pit in July to reach its stalled boring machine.
The pit will be 120 feet deep and about 80 feet in diameter. After it's completed in September, workers plan to lift out the head of the machine to repair seals and bearings.
The machine called Bertha ground to a halt in early December about 1,000 feet into the 1.7-mile Highway 99 tunnel that will replace the Alaskan Way Viaduct.
Bertha is expected to resume boring again in March 2015, and the contractor, Seattle Tunnel Partners, hopes to have the tunnel open in November 2016.
Copyright © The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
Thieves have stolen all the decorations for Seattle's popular Halloween Alley
A Boeing CEO says Everett's new 777X wing facility is a sign of commitment
All You Can Eat
6 belt-loosening food challenges in Seattle you may not be man enough to complete
Please login below with your Facebook, Twitter, Google+ or Disqus account. Existing MyNorthwest account holders will need to create a new Disqus account or use one of the social logins provided below. Thank you.