SEATTLE — Seattle’s giant drilling machine passed the halfway mark as it digs beneath the city to complete a new highway tunnel, state transportation officials said Monday. The drill known as Bertha ...

Bertha’s end could be near. The world’s largest tunnel-boring machine is on schedule to break into daylight this spring after a tumultuous dig under downtown Seattle that’s years behind schedule. The ...

SEATTLE (AP) — Seattle's giant drilling machine has passed the halfway mark as it digs beneath the city to complete a new highway tunnel. The Washington Department of Transportation said Monday that ...

A giant drilling machine punched its way through a final section of Alpine rock on Friday to complete the world's longest tunnel, after 15 years of sometimes lethal construction work.