DC Water took a major step Tuesday in the Potomac River Tunnel Project, lowering the cutterhead for ‘Mary,’ the tunnel boring ...

Work to start 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 ...

NEW YORK (PIX11) — The first commuter rail service through the new Hudson River tunnel is planned to run about a decade from now. But crews are busy building structures and clearing the way for the ...

This morning, the viewing public got its first look at the enormous boring machines that will soon be at work drilling a tunnel between the University District, Capitol Hill and downtown Seattle for ...

Deep under the Yangtze River, a stranded tunnel boring machine that looked like a sunk cost has instead become a showcase of ...

Next year, the first modern tunnel-boring machines ever used in New Jersey will arrive in North Bergen to begin drilling the first mile of the $16 billion Gateway Tunnel through the rocky Palisades.

Mary, the enormous drill doing the bulk of the heavy lifting in the Hampton Roads Bridge-Tunnel Expansion Project, began boring the second tunnel Thursday after a six-month break. She finished digging ...

CAPE CHARLES, Va. — Project leaders with the Chesapeake Bay Bridge Tunnel reported that Chessie, the tunnel boring machine used to dig the second tunnel, had broken through at the second island.

Seattle Tunnel Partners have resumed digging a repair pit to access the stalled tunnel drilling machine sitting idle under the waterfront. State archaeologists have determined shell deposits ...

A giant boring machine has broken through to complete excavation work to all of the tunnels along the 140 mile route of the HS2 railway. The enormous 125m (410ft) long machine emerged today (Mon) ...

Here's how Chinese engineers rescued a failed tunnel boring machine by guiding a second one to meet it under a river.