The Rogfast tunnel will also become the deepest four-lane road tunnel and the world's deepest underwater junction when the ...

The tunnel will consist of two parallel tubes, each carrying two lanes of traffic. At its deepest point, the road will lie ...

The world’s longest and deepest undersea road tunnel is being built in Norway, intended to cut travel time between major cities and become part of a ferry-free highway along its western coast. The ...

Previously the longest road tunnel in the world, the Gotthard Base Tunnel in Switzerland has slipped down the ranking as new ...

China is building the world’s longest undersea tunnel to link Dalian and Yantai, reducing a six-hour journey to just 40 ...

The Rogfast tunnel will also become the deepest four-lane road tunnel and the world's deepest underwater junction when the £472million project opens in 2033 ...