Damage to Seattle tunnel machine discovered – KING5.com
KING5.comThey 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 … Read more