Hitachi Zosen Completes Japan's 1st Seabed-Mounted Seawall

Economy Science Technology

Tokyo, Nov. 6 (Jiji Press)--Japanese heavy machinery maker Hitachi Zosen Corp. <7004> has completed the production of a movable seabed-mounted flap gate-type seawall, the first of its kind in Japan.

The seawall is planned to be transported to Ofunato fishing port in Iwate Prefecture, northeastern Japan, this month and installed there next year, Hitachi Zosen said Tuesday.

Iron floodgates installed in the seabed are lifted up with the use of their buoyancy in the event of tsunami and high tides to serve as a breakwater.

The 41-meter-wide seawall will have a height of 13 meters when its floodgates are buoyed to the maximum.

As it will be installed in the seabed, the seawall will not limit marine navigation or spoil the nearby landscape.

[Copyright The Jiji Press, Ltd.]

Jiji Press