Tokyo Bay

Tokyo Bay

Project Overview

  • Year:

  • 1992

  • Location/Region:

  • Asia / Japan

The Tokyo Bay Aqua-Line, also known as the Trans-Tokyo Bay Highway, is a bridge–tunnel combination across Tokyo Bay in Japan.

It connects the city of Kawasaki in Kanagawa Prefecture with the city of Kisarazu in Chiba Prefecture, and forms part of National Route 409. With an overall length of 14 km, it includes a 4.4 km bridge and 9.6 km tunnel underneath the bay—the fourth-longest underwater tunnel in the world.

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project image
Longditude 35.36667
Latitude 139.75
Market Civil Engineering
Structure Bridge
Hammer MHU 700T
Pile Diameter 2 m / 79"
Water Depth 30 m / 98.4 ft
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