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

Work to begin digging a new Hudson Tunnel is set to begin this spring as two tunnel boring machines custom-built for the ...

Sections of the German-made tunnel boring machines were shipped to ports in Elizabeth and Baltimore. They will reach North ...

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

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 ...

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 ...

Linghang, better known as the world’s largest-diameter high-speed railway shield tunneling machine, crossed the ...

A colossal project to reduce traffic in the underground tunnels connecting the Virginia cities of Norfolk and Hampton just had a big breakthrough — literally. Since 1957, the two cities have been ...

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 ...

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 ...

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 ...