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Tag: pipe Bertha
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
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