The Seattle Times

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WSDOT and MARK NOWLIN / THE SEATTLE TIMES
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Tuesday, February 25, 2014

Bertha’s big troubles started in Japan

BERTHA’S BROKEN SEALS: The $80 million tunnel-boring machine is suffering from damage to the seals that are supposed to protect its $5 million main bearing. But before it even got to Seattle, the same seals were a problem. Workers in Japan discovered damage and ended up taking Bertha apart for repairs.