The country investigates the dike that broke one after another Saitama October 17 18:13
On the 17th, the national investigation committee began investigating the cause of the Koshibe River and Tsukugawa River in Saitama Prefecture, where the dyke broke down during Typhoon No.19.
The Kanto Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism established a research committee made up of experts such as university professors to investigate the cause of the successive destruction of the Koshibe River and Tsukugawa River in Kawagoe City and Higashimatsuyama City, Saitama Prefecture. The we.
Among them, the committee members took pictures from the top of the embankment and confirmed the geology by looking at the cross section of the collapsed embankment when approaching the point where it was destroyed at the site of Kawagoe City on the Koshibe River.
“It ’s unusual for a river to break down because of rain in a wide area.”
There is no doubt that the levee can no longer withstand a large amount of water, but I want to investigate the cause firmly in future investigations. "
The investigation committee will conduct field surveys on the Nakagawa and Kujigawa rivers in Ibaraki Prefecture on the 18th, and will investigate the cause in detail and use it for recovery work and future countermeasures.