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, ...
Seattle Tunnel Partners (STP) knew an 8-inch steel pipe was in Bertha’s path two years before the tunnel boring machine chewed through it, according to a new suit filed by Washington state. STP says ...
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.
Hampshire Chronicle on MSN
Inside the machine that will bore a tunnel for a 19km water pipe
A tunnel boring machine is making steady progress on a major water infrastructure project.
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