The Ketchikan Gateway Borough is not the winner of a contest that could’ve built a free, underwater commuter tunnel between ...

Spanning over 18,000 feet, the Yellow River tunnel in Jinan, East China, accommodates six lanes across two levels.

China is planning a 76-mile underwater tunnel linking two major cities across one of its most seismically active stretches of ...

A key rubber component used in undersea tunnels loses up to 67% of its strength, jeopardizing its long-term durability.

Add Yahoo as a preferred source to see more of our stories on Google. More than 90pc of the Faroe Islands’ population is linked through four underwater tunnels - 1Tomm/iStock Britain has long had a ...

With the final cast-in-place roadway slab poured, the upper deck of the Huanggang Road Yellow River Tunnel in Jinan, East ...