A welder prepares for the tunnel-boring machine “Angeli” to break through a wall of dirt at the 2nd Place/Hope Street Station in downtown Los Angeles. (Irfan Khan / Los Angeles Times) ...

Elon Musk's The Boring Company plans to partner with Tennessee on a high-speed tunnel from Downtown Nashville to the ...

China has completed the production of its largest tunnel-boring machine (TBM), measuring 16.64 meters (54.5 feet) in diameter. The machine is named Jianghai, which means “river and ocean” in ...

Mary, the tunnel-boring machine, is on the move again! Thursday, Mary began boring a twin eastbound tunnel in part with the HRBT Expansion Project.

SEATTLE — The world’s largest tunnel-boring machine broke through a concrete wall beneath Seattle on Tuesday to reach the end of its long, troubled journey, a milestone in a multibillion-doll… ...

Now, The Boring Co. machine will dig – cheese grater-style – a 500-foot-long, horizontal pedestrian tunnel that is 20-by-150 feet and 13.5 feet in diameter, according to interim Hawthorne City ...

Currently, the world's longest undersea section of a tunnel belongs to the Channel Tunnel, which has a 23.5-mile (37.9 ...

Seattle needs help naming another giant tunnel machine — can you dig it, or is it boring? Seattle’s affection for Tunnel Boring Machines probably doesn’t run all that deep.

VTA asks residents to name its $76 million tunnel boring machine The tunnel boring machine was purchased last year and cost $76 million By Grace Hase | ghase@bayareanewsgroup.com | Bay Area News Group ...

HAMPTON ROADS, Va. — The Chesapeake Bay Bridge-Tunnel (CBBT) has some good news about Chessie—the tunnel boring machine being used for its Parallel Thimble Shoal Tunnel Project. Chessie is ...

The requirements emerged: Bertha's cutterhead—her face—would be 57½ feet across, as tall as the viaduct she was replacing. She would have hundreds of teeth to chew with. She'd digest the muck ...

The tunnel boring machine’s cutting head — which looks a bit like a cheese grater attachment on a food processor — will turn at 20 revolutions per minute to tear up the earth, propelled by a ...