Norway is drilling the world's longest and deepest undersea road tunnel through fault zones and rock that keeps letting seawater in
Why the Boknafjord posed such a difficult engineering problem Drilling through fault zones and unstable rock Fighting saltwater leaks nearly 300 metres down Building through
Why the Boknafjord posed such a difficult engineering problem Drilling through fault zones and unstable rock Fighting saltwater leaks nearly 300 metres down Building through solid bedrock instead of prefabricated sections An underground roundabout unlike anything built before A project already reshaped once by its own complexity What Rogfast means for the engineers who come after it
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