Seattle Tunnel Partners
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.
An effort to repair the giant tunneling machine stuck under downtown Seattle is going more slowly than expected.
The new tunnel would allow workers to dig up and repair the now-stuck boring machine
It seems that everything connected with the effort to dig a highway tunnel under downtown Seattle is big — from the tunneling machine that stopped working last December, to a large plywood wall planned to shield neighbors from the noise of repairing the machine.
An official for the contractor boring the Seattle Highway 99 tunnel says a six month delay in the stalled construction is a “slightly optimistic” forecast.
Wash. DOT says many of Big Bertha’s cutter-head openings are clogged with dirt and debris.