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Tag: Alaskan Way Viaduct replacement

Roadbuilding
Board rules WSDOT should have given contractor more warning about pipe struck by Big Bertha before stall
In regard to the drilling of the new State Route 99 tunnel below Seattle, the Washington State Department of Transportation (WSDOT) has few friends left. There remains disagreement between the department and the city of Seattle over who will pay to repair a water main damaged during the excavation of a repair pit for Big Bertha, […]
May 12, 2015
Big Bertha in repair pit WSDOT
Construction Equipment
A steel pipe is what brought Big Bertha, the world’s largest tunnel-boring machine, to a halt
The mystery is solved—in part at least. After Big Bertha, the world’s largest tunnel-boring machine, was brought to an abrupt halt on December 6th, officials at the Washington State Department of Transportation were stumped as to what was in the way. Now they know that the obstruction is a large steel pipe. A steel pipe […]
January 6, 2014
Safety
Are you smarter than the highway?
In Washington state, highways are getting smarter. Crews will install a series of electronic speed-limit and lane status signs over each northbound lane on Washington state’s I-5 between Boeing Access Road and I-90 in Seattle. [For WSDOT’s photostream on Flickr, please click here.] The high-tech signs are set to be activated on Aug. 10 to […]
August 4, 2010
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