Watch a powerful long-reach excavator working at the edge of a water pit, digging and shaping the ground beneath the surface. These specialized heavy machines are designed to reach deep and far, ...

SEATTLE (Reuters) - Washington state transportation officials said digging was expected to resume on Tuesday on a pit needed to salvage a $3.1 billion roadway overhaul in Seattle, deciding the ...

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 ...

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 ...

SEATTLE - Bertha, the world's largest tunnel boring machine, is in position to be torn apart so it can be repaired. State transportation officials say the broken machine reached a stopping point ...