Flood Risk Map for the and Shirako River Basin (Revised)

This map uses the same set of colors as previous flood risk maps to indicate inundation depths.

1. About this map 2. Basic information [Inquiries] Location map Tokyo Metropolitan Government (1) This map shows the areas expected to flood and anticipated depth of inundation in the (1) Map created by the Council for Protection Against Urban Flooding (Planning Section, River Division, Bureau of Construction) 03-5321-1111 event of heavy rain for the drainage basins of the Shakujii and Shirako rivers. (Shakujii, Shirako Rivers basin) Tokyo Metropolitan Government The assumed rainfall used for previous flood risk maps was the September 2000 Tokai Region (Disaster Prevention Section, River Division, Bureau of Construction) 03-5321-1111 Heavy Rain Disaster, but for this revised edition, the maximum assumed rainfall was used. (2) Map created on May 23, 2019 Tokyo Metropolitan Government (Planning Section, Planning and Coordination Division, Bureau of Sewerage) 03-5321-1111 (2) By informing the public of the risk of flooding, we hope that knowledge will be applied (3) Areas covered Toshim-ku(General Affairs Division, Disaster Prevention and Crisis Management Section) 03-3981-1111 in times of emergency to stay safe and evacuate, as well as to devise smarter life styles system (Shakujii, Shirako rivers) Shirako River with respect to flood risk. Kita-ku(Civil Engineering Division, Road and Park Section) 03-3908-1111 (4) Assumed rainfall Arakawa-ku(Disaster Prevention Section, Civic Life Affairs Division) 03-3802-3111 Shakujii River (3) This flood risk map (revised) uses a simulation to show inundation expected should the Maximum assumed rainfall (Hourly rainfall: 153mm Total: 690mm) Itabashi-city (Crisis Management Room, maximum assumed rainfall occur in the covered areas. The simulation is based on the Disaster Prevention and Crisis Management Section) 03-3964-1111 situation of the rivers and the sewerage system in the covered areas as of 2016. (5) Relevant wards and cities Nerima-ku (Crisis Management Room, Crisis Management Section) 03-3993-1111 Toshima-ku, Kita-ku, Itabashi City, Nerima-ku, Musashino City, Musashino city (Disaster Prevention and Public Safety Department, (4) The areas expected to flood and extent of inundation can vary depending on the Koganei City, Kodaira City, Nishi-Tokyo City Disaster Prevention Section) 0422-51-5131 intensity of rain, changes of the form of land, and improvements on rivers and the Koganei city(General Affairs Department,Regional Safety Division) 042-383-1111 sewerage system. 3. Notes Kodaira city (The General Affairs Department, Most riverside areas are low-lying, so it should be noted that they can be inundated Disaster Prevention and Crisis Management Section) 042-341-1211 by deep water when the river floods. Also, areas some distance away from rivers can 0 5 10 km Nishitokyo city (Crisis Management Office, be inundated by deep water if they are low-lying. Please also note that the Disaster Prevention and Crime Prevention Section) 042-464-1311 simulation does not consider infiltration inlets blocked by fallen leaves or other factors that could cause inundation. Note: These are main phone numbers.

Nishi-Kawaguchi Legend Kita-Asaka Toda City Kawaguchi City Asakadai Expected inundation depth

H Todakoen a Shin-Tokorozawa t 0.1m - 0.5m o g Sh a Niiza i y ng a a - 0.5m - 1m Asaka City sh k Kotesashi i a R i i Kawaguchi d ve o 1m - 2m Kokukoen r A Tokorozawa City v Asaka e Wako City n 2m - 3m u Higashi-Tokorozawa e Shirako River Basin in Wako City, Saitama Prefecture 3m - 5m is not applicable for this map. e nu Nishi-Tokorozawa ve Ukimafunado plus 5m A Taka do shima ai Niiza City S -dor -k Wakoshi h i Av Tokorozawa ki i enue Kita-Akabane hi n S o K Area expected to be inundated m i i t y a a m Kiyose City Hall - o by a river flooding B t y o p - a d s Itabashi-city o Adachi-ku s r Akitsu i Narimasu N Shimo-Yamaguchi a Akabane A Shakujii River Shin-Akitsu Kiyose City k v a e s n e u Kaw nd e ago o Shirako River Kiyose e- kai do Shimo-Akatsuka e Av Kita-ku u en n T u Tobu-Nerima e o e Yuenchi-Nishi v k Seibu-Kyujomae A or o o z d aw i a e Kokitahashi-do Seibuen a -k u ri Avenue k ai n Seibu-Yuenchi - e

u d e Kami-Itabashi o v Higashi-Jujo

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u Higashi-Kurume v e d

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Higashi-Murayama u a Tokiwadai

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Higashi-Murayama City e r -

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u n M e e Higashimurayama City Hall i j

n a ir o m r -

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Yagawa - Basin boundary

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u e do Av kai Sangubashi S i Hino City b tomi-ka Nishi-Eifuku shu-

u Hi Tama Ko 500 0 500 1000 1500 2000 Yur2ak5u0c0hom k

o Eifukucho Ward and City boundary K Chofu City Setagaya-ku Sasazuka Shibuya-ku Minato City Fuchu

Daitabashi Harajuku e u n e v This map was created using a 1:2500 topographic mAap of Tokyo.

i (Approval number) 29-tor shikikou-552 o d - a y i b i H