Norway plans world's longest and deepest undersea road tunnel to cut travel time in half

A new undersea road tunnel, called The Rogfast, is set to become the world's longest and deepest. It will cost £36 billion and cut a 21-hour journey in half, connecting Randaberg and Bokn in Norway. The 16-mile tunnel will replace seven ferries, reducing travel time to about 35 minutes. It will save 30 miles on the E39 motorway, which runs from Kristiansand to Trondheim. Construction began in 2018, with completion expected in several years. The Norwegian government will fund 40% of the cost, while tolls will cover the rest. The tunnel is expected to handle 6,000 vehicles daily.