Contractors building a new highway tunnel under downtown Seattle have started digging a 120-foot pit to rescue a stalled boring machine named Bertha. Seattle Tunnel Partners also is pumping out ...

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 ...

Digging resumed Thursday in a pit near the Seattle waterfront that will be used to repair a huge machine that broke down while trying to bore a highway tunnel under the city. The Seattle Daily Journal ...

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 - It's an operation that is so massive, so complex, it's hard to get your brain around it. At the south end of the Alaska Way viaduct crews are preparing the site where they will start digging ...