The first of two boring machines was switched on in west London on Tuesday.

Mary, the tunnel-boring machine, is on the move again! Thursday, Mary began boring a twin eastbound tunnel in part with the Hampton Roads Bridge-Tunnel Expansion Project. Watch: First of 4 gantries ...

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’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 ...

Snowy 2.0 launches tunnel boring machine Monica, which it hopes will succeed where Florence has failed and get the huge pumped hydro project back on track.

Bertha may be sitting idle, but another boring machine in Seattle, Swizy, is ready to move. “We are replacing the (Fremont) pipeline that has been in use for about 100 years,” said Annie Kolb-Nelson ...