(Arakawa River, Iruma River ver.) Flood Hazard Map

The Arakawa River/Iruma River ver. of Flood Hazard Map displays flood inundation risk areas, evacuation sites based on the simulation result of levee breach after recording the probable maximum precipitation (632mm of 72-hour rainfall totals in Arakawa River basin while 740mm in Iruma River basin)
※ The Arakawa River/Iruma River ver. was revised at the end of March, 2020 after reevaluating the evacuation sites. The revised maps are found in the section of Information Disclosure Section in Ward Offices.

(Tone River, Edo River ver.) Flood Hazard Map

Tone River/Edo River ver. of Flood Hazard Map displays flood inundation risk areas, evacuation sites based on the simulation result of levee breach after recording probable maximum precipitation (491mm of 72-hour rainfall totals in Tone River basin and Yattajima upper river basin).
※The Tone River/Edo River ver. was revised at the end of March, 2020 after reevaluating the evacuation sites. The revised maps are found in the section of Information Disclosure Section in Ward Offices.  
 

(Shiba River ver.) Flood Hazard Map

　Shiba River Flood Hazard Map displays inundation risk area and evacuation sites simulating probable flooding situation in case of inland flooding due to geomorphic change in the basin, levee breach or overflow after water rising, assuming that we experience once-in-a-century heavy rain (411mm of rainfall totals within two days).