Germany and Denmark are separated by a strait of just 20 km, but getting from one country to the other by land involves a 160 ...

For centuries, crossing the Thames was a challenge: until the 1700s London Bridge was the only fixed crossing, and by the ...

An economic envoy of Russian President Vladimir Putin has pitched the idea of building an underwater tunnel to link Russia with Alaska. It shouldn’t be too long and expensive to build, with Elon ...

Harvey Tunnel — Harvey Canal bridge piers in construction — — Piers for a new high rise bridge over the Harvey Canal on the West Bank are rising above the Harvey Tunnel. The new bridge will become the ...

A local organisation has entered a global tunnelling competition, proposing an idea for a public ‘art tunnel’ that would run from the Bridge to Brehon Tower.

From the column: "I can imagine how happy local walkers and bicyclists would be to have a tunnel like this to walk and ...

SAN FRANCISCO (KGO) -- It may not have the post card cache of the famous bridges, but the Transbay Tube that whisks BART trains under the bay carries nearly 25,000 people at peak commute hours. Built ...

A project nearing completion in the Detroit area used a custom-built, diver-operated vehicle that can operate underwater and that replaced concrete liners for two raw water tunnels, eliminating the ...