Dirt and dike also collapsed Turbulent flow into residential land Captured by MLIT camera Miyagi October 18th 11:37
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In Ogo-cho, Miyagi Prefecture, where more than 100 buildings were flooded due to the influence of Typhoon No. 19, it was found that the camera of the Ministry of Land, Infrastructure, Transport and Tourism was capturing the situation about an hour before the Yoshida River embankment broke down. In the video, you can see that some of the bank on the residential area disappeared and the concrete was exposed.
The Yoshida River embankment in Yodogawa, Ogo-cho, Miyagi Prefecture, was destroyed by heavy rain of Typhoon No. 19 at about 7:50 am on the 13th of this month, and more than 100 houses were flooded.
About 1 hour and 40 minutes before the breakdown, a camera from the Ministry of Land, Infrastructure, Transport and Tourism located near the site captured the situation just before that.
In the image around 6:10 am, water overflowed from the crests on the embankment, and there was no part of the bank on the residential area that had not been abnormal until the previous day, and the concrete on the embankment was exposed. You can see that it was.
According to the Ministry of Land, Infrastructure, Transport and Tourism, after this Great East Japan Earthquake, the embankment was lower than the rest of the basin, so it was covered with 1m of soil.
The water level does not drop around 6:15 am, and you can see how the water flows into the residential area.
After 7:50 am, the embankment broke down in a wide area, and brown water was flowing into the residential area while smashing the waves.
The Ministry of Land, Infrastructure, Transport and Tourism established a research committee that gathered experts on the 15th of this month following the breach of the Yoshida River embankment, and will continue to elucidate the cause based on video from the camera.