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Tag: Alaska Way Viaduct
Roadbuilding
Bertha is half disassembled, cutterhead completely removed
Bertha, the world’s largest tunnel boring machine at 8,000 tons, has been half disassembled by Seattle Tunnel Partners and all of the machine’s cutterhead has been removed. Washington State Department of Transportation (WSDOT) reports that much of the trailing gear is still inside the Alaskan Way Viaduct. Crews are continually working to cut and haul […]
July 17, 2017
Construction Equipment
Camera gives a live view of construction on Big Bertha’s 12-story repair access pit
Just because Big Bertha is down for nearly a year, that doesn’t mean work around the world’s largest tunnel boring machine has come to a halt. And now thanks to a camera set up by the Washington State Department of Transportation, anyone can watch as that work progresses. After completing one-tenth of the 1.7-mile State Route 99 […]
May 13, 2014
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