Landslide Hazards and Planning (PAS 533/534)

By Jim Schwab, Paula Gori, Sanjay Jeer

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Is a landslide waiting to happen in your community? Landslides occur primarily in mountainous regions, but flatter parts of the country are not immune. Landslides often go hand-in-hand with other natural disasters such as wildfires and floods, making them an important consideration in hazard mitigation planning and comprehensive plans.

This report will help planners minimize the risk landsli...

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Product Details

Page Count
Date Published
Sept. 30, 2005
APA Planning Advisory Service

About the Authors

Jim Schwab

Paula Gori

Sanjay Jeer

Table of Contents

1. A primer on landslide hazards for planners

The nature of landslide hazards • Scope and consequences • Key planning issues

2. Planning to address landslide hazards
Trends in hazard planning • Landslide hazards and the comprehensive plan • Hazard identification and risk management • Policy responses

3. Development regulations for landslide hazards
Zoning and landslide mitigation • Use restrictions • Grading ordinances • Maintenance requirements • Subdivision and planned unit development standards • Transfer of development rights • Bonds and insurance • Hillside development ordinances

4. Geologic hazard abatement districts (GHADs)
California's experience with hazard mitigation through geologic hazard abatement districts • Weighing the benefits of GHADs

5. Technical tools to assist planners in combating landslide hazards
New quantitative landslide hazard assessment tools for planners • Growth, geology, and GIS: Mapping, modeling and living with geologic hazards in Moab-Spanish Valley, Grand County, Utah

6. Case studies: how local governments respond to the challenge of planning for landslide hazards
A model of effective use of geology in planning, Portola Valley, California • The Kelso, Washington, Aldercrest-Banyon Landslide • Policy tools for addressing landslide hazards in Pittsburgh, Pennsylvania • Green Mountain Landslide: A case history of geologic hazards planning in Colorado

7. State and federal roles in landslide hazard planning and mitigation
California's seismic hazards mapping act: A statewide approach to landslide hazard mitigation • Landslide Hazards and federal lands: The United States Department of Agriculture Forest Service experience • The role of government in landslide hazards loss reduction with a discussion of role of the United States Geological Survey and other federal agencies