Mary’s job is done. On Wednesday, the tunnel-boring machine known as Mary, responsible for digging the two new tunnels for the Hampton Roads Bridge-Tunnel expansion, completed the second and final leg ...

The Boring Company said tunneling beneath Nashville presents new geological challenges compared to its previous projects, according to a new company social media post. Nashville sits upon ...

The Gateway Development Commission marked a major milestone for the Hudson Tunnel Project, announcing at its Dec. 15 board meeting that manufacturing and factory testing of the first two tunnel boring ...

The long-promised extension of the métro’s Blue Line will be built primarily by a tunnel-boring machine that is among the largest of its kind in the world. On Monday, the Société de transport de ...

Work to begin digging a new Hudson Tunnel is set to begin this spring as two tunnel boring machines custom-built for the project are on their way to New Jersey. The new rail tunnel, called the Gateway ...

Here's how the tunnel boring machine, or TBM, works: As the 200-ton TBM moves forward, a round cutter head studded with titanium teeth grinds into the tunnel face and splits large chunks off the rock.

NASHVILLE, Tenn. (WSMV) - Nashville’s new Tesla tunnel has reached another phase, with The Boring Company announcing on social media that tunneling is ready to begin. “Prufrock-MB1 is ready to mine in ...