Bertha, that gigantic, inoperable tunnel boring machine everybody loves to hate, finally might get out of that big hole it dug itself into. After an environmental review, Seattle Tunnel Partners, 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 ...

The Washington State Department of Transportation has halted digging for the repair pit to access Bertha – the SR99 tunnel machine – after archaeologists found shell deposits, WSDOT announced late ...

SEATTLE -- A machine digging a highway tunnel underneath Seattle that has sat idle since December likely won't begin working again for another six months, an official with the contractor said Friday.

Left in Bertha’s wake, crews have been constructing a living, breathing SR 99 under Seattle. “It’s really a large mechanical plant,” said Brian Russell with HNTB Corporation. “Within that facility ...