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, ...

The great Seattle mystery has been solved: The object blocking the world’s largest tunnel boring machine isn’t an old steamship or locomotive or alien spaceship – it’s an 8-inch-diameter steel pipe.

HOT SPRINGS -- Miss Elaine is in Lake Ouachita almost a year after the micro tunnel boring machine was launched into the southern slope of Blakely Mountain. Hot Springs Utilities Director Monty ...