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About steep slope collapse measures business
Last Updated June 30, 2021
In order to prevent disasters due to the collapse of steep slopes, if certain standards are met, Kanagawa Prefecture will designate steep slope collapse danger areas based on the "Law Concerning the Prevention of Disasters due to Collapse of Steep Slope" to hold.
<Designation criteria for steep slope collapse danger zone>
- Inclination angle of 30 degrees or more, height 5m or more.
- There are five or more houses that may cause harm due to the collapse of steep slopes.
- Even if there is a risk of harm to public offices, schools, hospitals, inns, etc. even if it is less than 5 units.
■About the details such as steep slope collapse danger areas, please see (outside site) about steep slope collapse danger area of Kanagawa Sabo Coast Division.
■Please refer to Kanagawa earth and sand disaster information portal (outside site) or Yokohama Kawasaki flood control office to have jurisdiction about confirmation of designated steep slope collapse danger area.
<Implementation standard for construction to prevent collapse of steep slopes>
- Natural cliff with an inclination angle of 30 degrees or more.
- The height must be 10m (* 5m) or more in principle.
- The estimated damage houses must be 10 or more (* 5 houses).
- The owner lends the land necessary for construction to the prefecture free of charge.
※Construction implementation standards based on prefecture-specific expenses
■About the details of steep slope collapse measures business, please see page (outside site) of steep slope business of Yokohama Kawasaki flood control office of Kanagawa.
Contact: Yokohama-Kawasaki Flood Control Office, Kanagawa Prefecture Phone (045) 411-2500 (main)
For inquiries to this page
Building Disaster Prevention Section, Housing and Architecture Bureau Planning Department
Phone: 045-671-2948
Phone: 045-671-2948
Fax: 045-663-3255
Email address: kc-gakebousai@city.yokohama.jp
Page ID: 527-263-560