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Explanation of the Flood Control Law (explanation of important matters, etc.)

Last update date June 1, 2022

Due to a partial revision of the Enforcement Regulations of the Housing Lots and Buildings Transaction Business Law (enforced on August 28, 2020), the location of the residential land or building to be dealt with in the flood hazard map created based on the Flood Control Law will be newly added to important matters explanation. Will be positioned as

Disaster Prevention Map (Yokohama City Administrative Map Information Providing System) 

If it is difficult to see the inundation assumption of the hazard map in terms of resolution, you can enter Address etc. from the disaster prevention map (Yokohama City Administration Map Information Providing System) (outside site) to expand the area and view it.

Making situation of hazard map based on Flood Control Law Article 15 in Motoichi

The creation status of hazard maps based on Article 15 of the Flood Control Law is as follows. ※( ): Date of creation, ○: Created, ×: No creation
Ward nameFlood hazard mapInland water hazard maphigh tides Hazard Map
Tsurumi Ward○(May 2022)× (Not based on the Flood Control Law)○(May 2022)
Kanagawa Ward○(June 2021)× (Not based on the Flood Control Law)○(June 2021)
Nishi Ward○(May 2022)× (Not based on the Flood Control Law)○(May 2022)
Naka Ward○(May 2022)× (Not based on the Flood Control Law)○(May 2022)
Minami Ward○(May 2022)× (Not based on the Flood Control Law)○(May 2022)
Konan Ward○(May 2022)× (Not based on the Flood Control Law)Since there is no inundation area map, there is no plan to create it.
Hodogaya Ward○(May 2022)× (Not based on the Flood Control Law)○(May 2022)
Asahi Ward○(May 2022)× (Not based on the Flood Control Law)Since there is no inundation area map, there is no plan to create it.
Isogo Ward○(May 2022)× (Not based on the Flood Control Law)○(May 2022)
Kanazawa Ward○(June 2021)× (Not based on the Flood Control Law)○(June 2021)
Kohoku Ward○(May 2022)× (Not based on the Flood Control Law)○(May 2022)
Midori Ward○(May 2022)× (Not based on the Flood Control Law)Since there is no inundation area map, there is no plan to create it.
Aoba Ward○(May 2022)× (Not based on the Flood Control Law)Since there is no inundation area map, there is no plan to create it.
Tsuzuki Ward  ○(May 2022)× (Not based on the Flood Control Law)Since there is no inundation area map, there is no plan to create it.
Totsuka Ward○(May 2022)× (Not based on the Flood Control Law)Since there is no inundation area map, there is no plan to create it.
Sakae Ward○(March 2024)× (Not based on the Flood Control Law)Since there is no inundation area map, there is no plan to create it.
Izumi Ward○(May 2022)× (Not based on the Flood Control Law)Since there is no inundation area map, there is no plan to create it.
Seya Ward○(May 2022)× (Not based on the Flood Control Law)Since there is no inundation area map, there is no plan to create it.

※The inland water hazard map is not based on the Flood Control Law, but when dealing with residential land or buildings, present this inland water hazard map is presented, and the other party of the transaction grasps the risk of flood damage and evacuates to heavy rain on a daily basis. Please provide information on the location of the residential land and buildings subject to the transaction so that it can be used for actions.

About the difference between "Wai Wai Disaster Prevention Map (Yokohama City Administration Map Information Providing System)" and "Hazard Map"

・Disaster Prevention Map (Yokohama City Administration Map Information Providing System): We publish inundation assumption area map which Kanagawa Prefecture made. (Article 14-2 of the Flood Control Law)
※It cannot be positioned as a hazard map using the inundation area map alone.

・Hazard map: The method of transmitting flood forecasts and other information, evacuation sites, etc. are described in the inundation area map created by Kanagawa Prefecture and others. (Article 15 of the Flood Control Law)
※When you want reading on paper, please see in city hall the third floor citizen information center.

Related links

For inquiries to this page

Regional Disaster Prevention Section, General Affairs Bureau Crisis Management Department

Phone: 045-671-2011

Phone: 045-671-2011

Fax: 045-641-1677

Email address: so-chiikibousai@city.yokohama.jp

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Page ID: 168-327-442

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