Bertha has finished digging through five of the 10 zones needed for completion of the new SR 99 tunnel under downtown Seattle. Now in zone 6, it will soon dig along side the Pike Place Market. The ...

The Seattle Underground Tour is already a popular attraction, but KIRO Radio’s Tom and Curley think they could have an expansion on their hands. If tunnel boring machine Bertha can’t get up and ...

SEATTLE -- The Highway 99 tunnel boring machine Bertha will not resume digging anytime soon. The state said Thursday it will not let Seattle Tunnel Partners resume work until it gets better answers as ...

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 ...

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 ...