Japan built a tsunami barrier

Fierce tsunamis like 2011 will no longer be a nightmare for the people of the rising sun when Japan completes a 20m high, 230m-long wave wall covering the Wakayama coast in 2020.

According to Japantoday, Japan has built a tsunami wall off the Wakayama Sea. Unlike any other breakwater , this breakwater is specially designed to be able to respond quickly to future tsunamis.

Image of breakwater simulation built at Wakayama beach

This breakwater is designed to be cylindrical airbags that are connected one after another and are connected to gas pumps submerged under the sea.Normally, this airbag is located deep in the sea.When there is a tsunami alarm, people will pump in air, this 'wall' is formed and emerges very quickly in a few minutes and will break the wave.Once the mission is completed, these airbags are discharged and automatically reclaimed under the sea.

'As designed as special airbags, this dyke not only does not hinder sea transportation and the aesthetics of the beach. And although this' wall 'was pumped by gas, it was strong enough to withstand the catastrophic attack , ' said an expert.

Reportedly, this wave wall was built 20m high (13m of which is submerged under the seabed as the base, and 7m above sea level) and stretches 234m along the Wakayama coast. According to experts, this 'breakwater' is a smart solution.

This project has been carried out since the end of last year. Up to now, Japan has just tested and successfully built the first 9m of the total length of 234m. The entire breakwater will cost about 730 million yen and is expected to be completed by 2020.

Previously, Japan also had a construction of a tsunami break at the Onagawa nuclear power plant in Miyagi Prefecture, northeastern Japan with a height of 17m (however by raising the height of the dyke 3m more) the old dike foundation is 14m high and 600m long.