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- (Tentative name) Yokohama City Sewerage Inundation Countermeasures Plan
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(Tentative name) Yokohama City Sewerage Inundation Countermeasures Plan
Last Updated February 15, 2025
(Tentative name) What is the Yokohama City Sewerage Inundation Countermeasures Plan?
With the aim of further promoting the development of resilient towns that are resistant to rain based on the progress of inundation countermeasures and the effects of climate change, a new perspective of pre-disaster prevention has been adopted, and targets and measures for inundation countermeasures by sewerage in the future This is a master plan for inundation countermeasures that defines how to proceed.
Composition of the plan (draft)
1 Position of the Plan
2 Current status and issues of inundation countermeasures
- Current status of flood countermeasures
- Issues for flood control
3 Future Inundation Countermeasures
4 Disaster Prevention Measures
- Review of target maintenance levels (targets to prevent flooding)
- Promotion of "Preliminary Disaster Prevention"
- Areas subject to maintenance in this plan
- Selection of maintenance areas
5 Measures against reduce disaster damage
- Targets to prevent serious damage (100mm/hr, general prevention of flood above floor level)
- Life-saving goals (153mm/hr, secure safe evacuation)
Recruitment of citizen opinion about draft [※ finished]
During period from December 24, 2024 to February 14, 2025, we carry out citizen opinion offer about plan draft.
- (Tentative name) Citizen opinion offer leaflet (PDF: 7,450KB) about Yokohama-shi sewer inundation measures plan (draft)
- How to submit your opinion
- Online input form (Yokohama City Electronic Application and Notification System) [Recommended]
- Email: gk-shinsuiiken@city.yokohama.lg.jp
- Mail: To 10 Sewerage River Bureau Management Promotion Section at 6-50 Honcho, Naka-ku, Yokohama City (valid until postmark on February 14, 2025). Please pay the shipping fee.
- Ｆ Ａ Ｘ： 045-664-0571
※When you submit by e-mail, FAX, please send after clearly stating that it is opinion about residence district, age, (tentative name) Yokohama-shi sewer inundation measures plan (draft).
[Notes]
- We cannot accept telephone or verbal comments because we need to accurately understand your comments.
- Please fill in the area of residence and age when submitting.
- We use opinion, personal information that had you approach only for development of this "(tentative name) Yokohama-shi sewer inundation measures plan" and do not use for other uses.
- Except for personal information, we plan to announce summary of opinion and way of thinking of city for it on Motoichi homepage.
- Please note that we will not respond individually to your comments.
Inundation Countermeasures Study Group based on Climate Change
In formulating a new inundation countermeasure plan, the “Inundation Countermeasures Study Group Based on Climate Change” discussed the issues that form the framework of the plan, such as the goals of inundation countermeasures and the concept of maintenance priority.
Committee members
| Name (furigana) | Affiliation | |
|---|---|---|
| Committee members | Hiroyuki Kato | Project Associate Professor, Graduate School of Engineering, The University of Tokyo (former Director, Sewerage Business Division, Ministry of Land, Infrastructure, Transport and Tourism) |
| Expert Committee Members | ISHIKAWA Eiko | Associate Professor, Department of Urban Studies, Faculty of Liberal Arts, Yokohama City University |
| Expert Committee Members | Hiroaki Morita | Professor, Department of Civil Engineering, Faculty of Engineering, Nihon University |
Term of office of committee members
From April 28, 2023 to late November, 2023
Status of the Study Group
| Schedule | Major items to be discussed | |
|---|---|---|
| 1st Study Group | June 5, 2023 | Targets for flood control [Setting disaster prevention targets (targets to prevent flooding)] In light of the impact of climate change, we will strengthen rainfall (target development level) targeted for facility development by 1.1 times.
[Setting reduce disaster damage Targets] Targets to prevent serious damage: 100mm/hr, general prevention of flood above floor level To save lives: 153mm/hr, ensuring safe evacuation |
| 2nd Study Group | July 5, 2023 | Concept of maintenance priority
|
| 3rd Study Group | August 24, 2023 | Concept of maintenance priority
|
| The 4th Study Group | November 29, 2023 | Items described in the Inundation Countermeasures Plan (draft) |
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Inquiries to this page
Sewerage River Bureau Management Promotion Department Management Promotion Section (Plan)
Telephone: 045-671-2838
Telephone: 045-671-2838
Fax: 045-664-0571
Email address: gk-manegement@city.yokohama.lg.jp
Page ID: 390-093-100
