A 700-foot-long tunnel boring machine named Mary is being assembled in Washington, D.C., to dig a 5.5-mile stormwater and ...

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 (TBC) said it’s getting close to starting tunnel work on the proposed Music City Loop, but final permits ...

A machine has begun digging HS2’s 4.5 mile tunnel to Euston, from Old Oak Common, a journey expected to take 18 months.

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.

They weighed 1200 tonnes each, the same as 171 elephants, measured 170 metres in length, and dug through 1.58 million tonnes of rock. Now that their job is done, they’ve been dismantled underground, ...

A £100m water supply project has reached a key milestone after engineers completed digging a tunnel beneath a motorway – without disrupting traffic. A remotely operated tunnel boring machine spent 32 ...

A tunnel-boring machine stalled beneath China’s Yangtze River while excavating a highway tunnel, forcing engineers to complete an unprecedented mid-river docking operation over two years.