No one
will have to pay.
Repair work on tunnel boring machine Bertha will take longer than expected because workers found more severe damage than they anticipated, state officials told Seattle City Council members Monday.
The seals inside Bertha and the steel casings around them are completely ruined, with the damage so profound that pieces fell into gears deep in the machine, where 24 electric motors rotate the circular cutter drive, said Todd Trepanier, Washington Department of Transportation administrator for the Highway 99 tunnel project.
