The first four tunnel boring machines are coming to New Jersey to build the Gateway rail tunnel. Here's what they do and why ...

The Hudson Tunnel Project reached a key milestone as factory testing finished for two tunnel boring machines now headed to New Jersey.

On Wednesday morning, crews removed the final piece of Bertha the boring machine out of the pit it has sat in since reaching the end of the tunnel running under Seattle. A live time lapse of the ...

The $80 million tunneling machine known as ‘Bertha’ resumed mining Tuesday beneath the Seattle waterfront for the first time in about seven weeks. The machine moved forward about two feet, allowing ...

Victorian government experts have confirmed that the tunnel boring machines are a “factor” in a sinkhole opening up in the ...

Seattle, meet the latest German import: it weighs 450 tons and travels about 58 feet per day. BMW? Mercedes? Audi? Nope, it's a Herrenknecht. The Herrenknecht tunnel boring machine arrived partially ...

SEATTLE — Visitors got a last look at the Seattle tunneling machine nicknamed Bertha on Saturday before it heads underground for more than a year. Gov. Jay Inslee was among the dignitaries attending ...

One of the giant machines digging the tunnels for HS2 has become the first on the project to complete its full journey underground. A 2,000-tonne tunnel-boring machine (TBM) called Dorothy, named ...

A massive tunneling machine has done its job, digging deep below the District. “It’s a monumental milestone for us,” said Carlton Ray, vice president of the Clean Rivers Project for DC Water. The ...

The Melbourne sinkhole that opened up near a major tunnelling project poses "serious questions", an expert says. The ...

Fascinating footage shows a huge tunneling machine called Dorothy digging underneath ancient woodland as the United Kingdom's HS2 high-speed rail project goes full-steam ahead. Dorothy, the ...