Expected heavy rain due to approaching typhoon
Due to the impact of typhoon No. 20 that is approaching, there is a risk that the risk of flooding will increase even in areas affected by typhoon No. 19 torrential rain.
Pump car deployment in Chikuma River
In Nagano City and other places, the drainage pump station that prevents the river water from flowing back, a total of seven places that cannot be used because of water, the country and the prefecture have deployed drainage pump cars in preparation for future rain.
There are seven drainage stations along the Chikuma River, including Akanuma, Nagano City, Toyono Town, Shinonoi, and Yoshishima Island, Obuse Town, which are not usable due to flood damage.
When the Chikuma River is flooded, the drainage station is closed with a drain pump to prevent overflow of the tributary water after closing the gate to prevent backflow into the tributary. There is a function to prevent.
Since there is a possibility that the water of the tributaries will overflow due to the future rain due to the inability to use the drainage station, the country and the prefecture have completed the deployment of 28 pump cars by 7 on a 21-day basis. To prepare for.
Nagano City and others are considering whether to install a large-scale temporary pump as to whether it will take time to resume operation while expediting the restoration work.