Flood of Tama River The staff of the ward temporarily suspended the work of closing the sluice by changing clothes January 30 4:22
In Setagaya-ku, Tokyo, where flood damage along the Tama River occurred in the typhoon in October last year, employees who were working on closing the water gate along the river at that time returned to the office to change their wet clothes and suspended work. I understood that I was doing. After that, one sluice gate could not be closed and the water flowed into the residential area, and the ward is examining how the timing of opening and closing the sluice gates affected the inundation damage.
In Typhoon No. 19 in October last year, houses in the Setagaya Ward were flooded with water, mainly along the Tama River, and about 580 buildings were completely or partially destroyed.
At that time, the staff of the ward were working on closing the floodgates along the Tama River all at once, but the staff who was working while moving by car entered the flooded place and said that their clothes were soaked, I returned to my office and found that I had stopped working.
According to the ward, they departed again to close the remaining locks, but could not reach one due to traffic congestion or flooding of the road, and could not close one of the locks.
It has been pointed out that the water of the Tama River may have flown from the floodgate to the residential area, causing one of the causes of flood damage. I think it didn't matter that the locks weren't closed in minutes. "
The committee, which began last month, is examining how the timing of opening and closing the sluice gate in the city affected the inundation damage.