Norway is building the world’s longest, deepest undersea road tunnel

December 2, 2025

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1 min read

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CNN

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 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 27-kilometer (17-mile) long tunnel is called Rogfast ... [5453 chars]

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Source: CNN

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