A rod-like boring pipe Enbridge left in the Straits of Mackinac bottom after it broke last fall is about five times longer than the Canadian oil transport giant initially told state regulators, ...

SEATTLE — Experts say they've at least partially solved the mystery of what's been blocking a massive tunnel-boring machine beneath downtown Seattle for the past month: a steel pipe. The $80 million, ...

Crews discovered an 8-inch steel pipe protruding through one of the openings of Bertha the tunnel boring machine today. The Seattle Tunnel Partners aren't ready to say exactly what is blocking Bertha, ...

Over the last decade, pipe bursting has been increasingly accepted by project owners as a less costly, less disruptive alternative to open cut trenching for replacing underground utilities. “In ...