Linghang, better known as the world’s largest-diameter high-speed railway shield tunneling machine, crossed the 6.2-mile (10,000-meter) tunneling milestone on Tuesday, as reported by the China Media ...

Add Yahoo as a preferred source to see more of our stories on Google. NORFOLK, Va. (WAVY) — Mary the tunnel boring machine broke through on the second tunnel Wednesday afternoon as part of the HRBT ...

Add Yahoo as a preferred source to see more of our stories on Google. Mary’s job is done. On Wednesday, the tunnel-boring machine known as Mary, responsible for digging the two new tunnels for the ...

A colossal project to reduce traffic in the underground tunnels connecting the Virginia cities of Norfolk and Hampton just had a big breakthrough — literally. Since 1957, the two cities have been ...

Giant tunnel-boring machines can get stuck in the rock they’re digging through, revealing flaws in the internal control of ...

Officials expect the $3.9 billion Hampton Roads Bridge-Tunnel expansion project to be substantially complete by February 2027, after years of boring underwater tunnels and widening lanes on land.

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 ...