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, ...

As with any task, if there’s more than one way to do it, then you should explore all of your options before forging ahead. This holds true in the world of utility construction. For years now, ...

Huge machine is the largest of its kind exported by China and will cut through a complex environment to create a 6.5km six-lane tunnel A gigantic but highly flexible Chinese tunnel boring machine is ...