Seattle Tunnel Partners finished disassembling Bertha and have concluded the damage the machine sustained is more extensive than previously thought.
The latest inspection of the Alaskan Way Viaduct found additional ground settlement, wider cracks and two new cracks on columns near the area where the Seattle Tunnel Partners are working to fix Bertha, the giant tunnel boring machine that is supposed to dig the highway tunnel to replace the viaduct along Seattle’s waterfront.
A state lawmaker says he wants to block more state money from going to keep transit buses moving through the construction zone for the Alaskan Way Viaduct tunnel replacement.
Workers at the Seattle tunnel project have started pulling pieces of the broken tunnel machine called Bertha to the surface for repairs.
The contractors building a tunnel under Seattle have invited the media to a special viewing of Bertha, the world’s largest tunnel boring machine, as they prepare to pull it out of a pit for repairs.
Bertha, Seattle’s tunnel machine, achieved what officials called “a significant milestone” on Thursday when it broke through a 20-foot-thick concrete access pit wall into a shaft so that it can be pulled out and repaired.
Bertha has reached her goal
Bertha is on the move.
State transportation officials gave Seattle Tunnel Partners the OK on Tuesday to resume excavation on a pit being dug to reach and repair Bertha, the broken tunneling machine.
City and state transportation officials closed a street adjacent to the Alaskan Way Viaduct Replacement Project in Seattle because a portion of the road was cracked and sinking