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The Washington Transportation Department says crews have completed the second of four planned exploratory 5-foot-wide shafts being dug in front of a…
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A steel pipe that the state Department of Transportation itself had installed back in 2002 sits in the way of Bertha underneath Seattle, WSDOT said on…
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The Transportation Department and contractors building a highway tunnel under downtown Seattle are trying to find out what has blocked their tunnel boring…
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The machine boring a new Highway 99 tunnel under downtown Seattle has finally dug itself out of its own launch pit.The Transportation Department said…
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The drill known as Bertha is back to eating dirt after a slow start, then a delay, then a delay caused by the delay.The massive machine boring the Highway…
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The tunnel-boring machine known as Big Bertha will resume digging after longshoremen agreed to remove their picket line which had been in place since Aug.…
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The State Route 99 tunnel boring machine, better known by her nickname “Bertha,” is poised and ready to begin the dig under downtown. To get a bird’s eye…