The project to build a new $16 billion Hudson River rail tunnel has made up for lost time after a two-week shutdown, as Gov.

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

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 ...

Boring Company Prurfock 3 and the new Prufrock 4 tunneling machines can only tunnel about 11 hours per day. There are limitations are maintenance and how they have to stop tunneling to put in the ...