This is Japan’s underwater highway.
Facing the challenge of linking the cities of Kawasaki and Kisarazu, two urban nucleus located on both sides of Tokyo Bay, Japanese authorities decided to resort to a viaduct, an underground canal… And, as a gift, build two artificial islands over the Pacific waters, one of which is 650 meters and provides a huge parking and commercial area.
And that’s nothing!
The project was named as Tokyo Bay Aqua-Line and although it was inaugurated already a quarter of a century ago still surprising for its dimensions, design and the technical solution with which it saves a bay of more than 14 kilometers wide in which the waters reach 70 meters of depth.