Kyushu’s Nationally Managed Rivers Risk of Embankment Collapse and Flooding September 6, 17:53
With Typhoon No. 10, rivers managed by six countries, including Kagoshima Prefecture, Miyazaki Prefecture, and Kumamoto Prefecture, are expected to have more rainfall than the level of river maintenance, which could greatly increase the risk of embankment collapses and flooding.
The Ministry of Land, Infrastructure, Transport and Tourism has called for strict vigilance, as the risk of flooding is high in other rivers in Kyushu.
According to the Ministry of Land, Infrastructure, Transport and Tourism, the expected rainfall of the 6th stage exceeds the standard rainfall for the maintenance of levees in nationally managed rivers.
“Hepato River” flowing through Kagoshima Prefecture,
“Kawauchi River” and “Okawa River” flowing through Miyazaki and Kagoshima Prefectures,
“Komaru River” and “Gokase River” flowing through Miyazaki Prefecture,
It is said that it is “Kuma River” flowing through Kumamoto Prefecture.
In Kyushu, there is a risk of rain comparable to the amount of rain used to maintain levees in other rivers managed by the government, and there is a risk of flooding.
We are also calling for vigilance as there is a high risk of flooding not only in large rivers but also in small and medium-sized rivers.
Even in Typhoon No. 19 last year, rainfall in watersheds such as the Chikuma River, Abukuma River, and Kuji River exceeded the standards for developing levees, and damage such as actual river levees collapsed and water flooded beyond the levees.