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

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 ...

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.

Workers on the mammoth Gateway tunnel project are getting ready to start drilling through the Palisades in the new year. The Gateway Development Commission — the public authority behind the ...

Disassembled sections of two tunnel boring machines that will help dig a $16 billion rail tunnel between North Jersey and Manhattan are on their way to the Garden State. The German-made machines were ...

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