Damage to Seattle tunnel machine discovered – KING5.com

KING5.com
They told reporters that their contractor Seattle Tunnel Partners (STP) thought they found what has kept Bertha from digging for nearly two months. During an inspection in a pressurized chamber, they found several areas where the cutter head was
Sand in the grease: Bertha’s main-bearing seals are damagedThe Seattle Times (blog)
Seattle’s Tunnel Machine Chokes on DirtKUOW News and Information

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Source: Seattle News From Google

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