Information transmission path and collection of information The relationship among the type of evacuation information, your evacuation behavior, the type of flood forecasting of the Arakawa River, and the water level Area where the water will stay for a long time Type and mechanism of flood Urgency Types of evacuation Types of Indication of water levels In the inundation forecast Toda City There are two major types of flood: “river water flood” and Flood forecasting, etc. Evacuation behaviors of the Arakawa River Inland water flood information, etc. Arakawa River Iwabuchi Floodgate (upper) (maximum scale) predicted by “inland water flood.” to be taken by citizens River water ・ Rainwater accumulates issued by the city flood forecasting Gauging Station the MLIT based on the Kawaguchi City River water floodflood at the spot. MLIT/Japan Meteorological Agency (JMA)/ High When the risk of human damage ●If you have not evacuated yet, simulation, it is assumed that N This hazard map is Information Kita City, Tokyo Evacuation order becomes extremely high due to evacuate immediately. for ・ There is a rainfall that Tokyo Metropolitan Government Weather, Precipitation, Water level, Arakawa River Flood risk many inundated areas in Kita Burst Video images of rivers, Flood forecasting, Evacuation information, etc. (emergency) a worsened situation such as the ●When conditions outside are dangerous, immediately exceeds sewerage Flood forecasting, etc. Warnings for flood protection, evacuate to a higher place in the building. flood risk water level City will be flooded for not less Sediment disaster alert occurrence of disaster River water flood drainage capacity. information A.P.＋7.70m than two weeks. In these areas, River Citizens Adachi City ・ A river overflows the ・ Water level of a river is When damage from ●Immediately evacuate to an it takes time to restore lifeline Evacuation disaster is expected and evacuation site or other safe place. levee. too high to drain into. services (electricity, gas, water InlandInland waterwater advisory the risk of human damage ●When you are in an underground space, Kita City Flow of water floodflood Kita City’s website immediately evacuate to a safer place. ・ The levee bursts. becomes higher and sewerage, telephone, etc.), Itabashi City Disaster and other information are Kita City Disaster Prevention Arakawa River Evacuation Municipal information car released on the official website. Evacuation and it is difficult to continue The mechanism of the occurrence of flood disaster (river water flood) Weather Information Mail When evacuation ●Get prepared so that you can evacuate flood alert water level fire-fighting vehicles, police cars ・ Kita City Disaster Prevention and Weather preparation/ advisory or evacuation at any time. with your normal daily life as Information Web Page Disaster information is provided information A.P.＋6.50m Disaster information is provided Start evacuation order (emergency) is ●For the elderly or those who need time shown in the picture below. (PC)http://micosfit.jp/kita-city/ to registered citizens. through information car, etc. expected to be issued to evacuate, start evacuation. Nerima City Inundation duration time (Mobile phone)http://www.bousai-mail.jp/kita-city/top.html If you want to register, please of the elderly If you live in these areas, you (flood depth of 0.5m or more) send a blank message to Arakawa When human damage is ●Collect updated information through Arakawa River Flood alert must keep an early evacuation Area of less than 12 hours [email protected] Area of 12 hours or more but less than 1 day City Announcement expected due to a large TV, radio or other media. The press TV/Radio flood caution water level in mind, considering that you Area of 1 day or more but less than 3 days PC Mobile phone of warning/alert typhoon or stationary front ●Do not get close to the bank of a river. Other than telop/L-alert, you can information A.P.＋4.10m might not be able to return Area of 3 days or more but less than 1 week check weather, disaster, river and Kita City Disaster Area of 1 week or more but less than 2 weeks Toshima City other information by pressing the Prevention Application home for a while. Area of 2 weeks or more d-button for terrestrial digital River area, etc. Heavy rain increases Once the water reaches As the water increases, As the burst spreads at Kita City disaster information broadcasting (data broadcasting). Near the Iwabuchi Floodgate River Bunkyo City the volume of water in the top of the levee, the the levee cannot withstand once, water gushes out is distributed (free of charge) in collaboration with NTT’s ● Cross-sectional view the river, and the water levee starts to be pres- water pressure, and begins and attacks houses and Disaster Prevention TownPage. Taito City level starts to rise. surized by the water. to burst accordingly. others. Height of the levee ▲！ Evacuate before this happens J:COM Tokyo Kita A.P.+12.5m Arakawa River Difference from the height Kita City’s disaster and Shingashi River Flood disasters in the past and current situation Android iOS of the levee: 5.5m The outside is flooded... weather information Designed high-water level A.P.+8.57m Water level difference: Height of the levee I can’t go out. Approx. 4m A.P.+7.0m Laundry Cooking Bath Toilet As the name shows, the Arakawa River had often flooded. However, is provided by telop. Evacuation water level A.P.+6.50m Designed high-water level We have no more Elevators don’t move. when a large flood occurred in 1910, the Arakawa River discharge Kita City Disaster Prevention Flood alert water level A.P.+4.10m A.P.+4.54m Flood risk water level stockpiles of food. channel (current Arakawa River, downstream from Kita City) was Administration Wireless A.P.+7.70m We don’t have running water! Website of ministries Ground height JR I can’t use Disaster information is broadcast A.P.+2.5m completed in 1930 after nearly 20 years of construction. Since then, Akabane the electric pot. and agencies from outdoor speakers installed Station flood damage from the Arakawa River has not occurred. You can check real-time information Flood-fighting preparation water level A.P.+3.00m at 109 places throughout I can’t cook even However, in recent years, we have begun seeing “record rain- such as video images taken by CCTV the city. At high spring tide (Iwabuchi) A.P.+2.10m instant noodles... cameras, water level, falls” in many places, along with significant damage reports nearly Citizens Automatic telephone weather, and disaster A.P. is an abbreviation for Arakawa Peil, a unit representing the standard of the every year. We can’t assume that things are alright because there information. answering service Arakawa River system. T.P. (Tokyo Peil=so called above sea level), which is the current Water level indication of Iwabuchi *panting* were no floods in the past. It is important to prepare on a daily basis You can recheck the disaster national standard of height, has been set to A.P.+1.1344m. Floodgate (upper) Gauging Station Kanto and Tohoku Heavy Rain in September 2015 information broadcast by the to take appropriate behavior during an emergency. First, let’s start Kinu-River flood disaster Area mail (early warnings)/ Photos: MLIT Kanto Regional Development Bureau Kita City’s official Twitter/Facebook disaster prevention administration ● Iwabuchi Floodgate at normal times ● Aerial photograph Aerial photograph of the Iwabuchi Floodgate We can’t use the TV or air conditioner. There, there, with what you can do. You can check past flood disasters on Kita wireless by telephone. (Toll free) Emergency alert email Disaster information, etc. is Photos: MLIT Kanto Regional Development Bureau you can’t go to the hospital The food in the fridge has of the Arakawa River The radio is out of batteries. City’s official website. Disaster information is delivered from the national and municipal distributed through Twitter and even if you have a fever. rotted because governments. You can automatically receive the information with Facebook. 0120-061-724 of a blackout. I don’t know an appropriate mobile phone in the Kita City area during disaster. ・ Twitter “kitaku_tokyo” what is going on. Mobile carriers providing the service: Docomo, au, Softbank ・ Facebook “kita.city.tokyo” Garbage is piling up and Flood hazard map of rivers other than the Arakawa River, and sediment disaster it is starting to smell bad. Other than this flood hazard map (for the Arakawa River flood), Kita ● Kita City Disaster Prevention Application: Flood risk in the city is visualized by the AR system*! Oh! City has a flood hazard map which shows assumed flood depths and Top page of Top page of Kita City’s The portable ▼ the application ▼ official website ▼ AR image Kita City Disaster Prevention Application “Disaster Prevention toilet is full. evacuation centers when the Sumida, Shingashi, Shakujii, and Kanda rivers flood (for river water floods and inland water floods). TownPage” enables you to check more detailed flood information At normal times When the river rises It’s hot and In addition, there are designated sediment disaster alert areas in than this Hazard Map, as well as to visualize flood image by using AR The Iwabuchi Floodgate, which is located at the fork of the Arakawa In the Arakawa River basin, the water level at the Iwabuchi Floodgate I can’t use the telephone or I’m hungry. technology. Please use it to check the flood risk in your neighboring River and the Sumida River, has an important role in protecting the (upper) Gauging Station exceeded the flood alert water level (A.P.+4.10m) my mobile phone.