Crews resumed mining the Seattle tunnel Monday after several weeks of maintenance on Bertha the boring machine came to an end. Workers inspected and repaired machine components during maintenance, ...
The machine responsible for boring a tunnel under Seattle is being prepared to be placed back into the ground. Crews with Seattle Tunnel Partners, the contracting team hired to design and build the ...
Seattle Tunnel Partners (STP) knew an 8-inch steel pipe was in Bertha’s path two years before the tunnel boring machine chewed through it, according to a new suit filed by Washington state. STP says ...