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World's longest underwater 'mega tunnel' to cost $46 billion but will halve 21-hour drive
It's more about logistics than tunnelling." Currently, Norway's Lærdal tunnel holds the record for the longest underwater road in the world. Spanning 15 miles, it connects the municipalities of ...
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World's longest underwater road tunnel will cost £46billion and cut 21-hour drive in half
Norway is set to construct the world's longest and deepest road tunnel, The Rogfast ... stretch 16 miles and reach depths of 1,300 feet underwater, linking the municipalities of Randaberg and ...