Inundation of Chikuma River The depth is about 4 meters at the maximum.

When the Geographical Survey Institute surveyed the area and depth of the Chikuma River and Abukuma River that were flooded by heavy rain due to Typhoon No. 19, it was found that the depth of the Chikuma River was about 4 meters. It was.

On the 13th, the Geographical Survey Institute superposed the photographs taken from the sky with the altitude data to estimate the flooded area and depth of the Chikuma and Abukuma rivers.

In the vicinity of the place where the bank of the Chikuma River broke down in Nagano City, it is said that the inundation covers an area of ​​about 5 km from north to south.

Of these, the Hoho area of ​​the residential area along the river was flooded from a depth of 2 to 3 meters in a wide area, and in the Akanuma area where the “Nagano Shinkansen Vehicle Center” where vehicles of the Hokuriku Shinkansen were immersed in water was deep. However, it seems that the maximum is about 4.3 meters.

On the other hand, in Koriyama City, Fukushima Prefecture, where the Abukuma River was inundated, the Abukuma River and the residential area on the west where it merges with the tributary Awasegawa River are inundated, spanning about 1.5 km from east to west, and a maximum depth of about 3 meters. It seems that it is reached.