Chippewa County Natural Hazards Mitigation Plan

Transcription

1 2014 Chippewa County Natural Hazards Mitigation Plan Prepared for: Chippewa County Office of Emergency Management With the Assistance of: Eastern U.P. Regional Planning & Development Commission April, 2014

2 Cover Photo: 1 ½ Mile Road, Sugar Island, Michigan This page is intentionally left blank.

3 Chippewa County Natural Hazards Mitigation Plan April, 2014 Prepared for: Chippewa County Office of Emergency Management 4657 W. Industrial Drive Kincheloe, MI Tim McKee, Director Assisted by: Eastern U.P. Regional Planning & Development Commission P.O. Box 520 Sault Ste. Marie, MI Adopted: ACKNOWLEDGEMENTS EUP Planning Staff: Ellen Benoit, Assistant Director Nathan Coon, GIS Technician

4 Table of Contents Chapter 1 - Introduction... 1 Purpose... 1 Plan Requirements... 2 Emergency Management Cycle... 3 Planning Approach... 5 Public Participation... 6 Background and Scope... 6 Multi-Jurisdictional Planning... 8 Relationship to Other Regional and Community Plans... 9 Hazard Assessment Plan Layout Chapter 2 - County Profile Description Geography Climate Surface Waters Watershed Basins Population and Demographics Equalization Report Land Use Patterns Transportation Network Utilities Emergency Management Local Units of Government Profiles Critical Facilities Chapter 3 - Natural Hazards Risk Assessment Federal Requirement Methodology Hazard Identification Hazard Profile Severe Winter Weather Thunderstorm/High Wind/Hail/Lightning Wildfires Drought Public Health Emergencies Infrastructure Failure Flooding... 84

5 Civil Disturbances Transportation/Hazardous Materials Accident Structural Fires/Scrap Tire Fire Tornadoes Fixed Site Hazardous Materials Incident Pipeline Extreme Temperatures Subsidence/Ground Movement Chapter 4 Mitigation Strategy Foundation Sustainability Partnerships Goals Hazard Mitigation Actions Identification & Analysis Prioritization Methodology Mitigation Action Plan Chapter 5 Plan Implementation Plan Adoption Implementation Hazard Mitigation Planning Committee s Role 132 Incorporation into Existing Planning Mechanisms Plan Maintenance Public Involvement Appendix A - Chippewa County Hazard Mitigation Planning Committee Appendix B - Planning Documentation Appendix C - Public Comments Appendix D - Maps Appendix E - Community Profiles Appendix F - Sample Resolutions Appendix G - Action Plan Detail

6 List of Figures Figure 1 Natural Disasters Trend... 1 Figure 2 Chippewa County Local Units of Government... 9 Figure 3 Snow Classifications Figure 4 Average Snowfall in Inches Figure 5 Palmer Drought Severity Index Michigan Region Figure 5 Paul Tregurtha aground in St. Mary s River 97 Figure 6 Enhanced Fujita Scale for Tornados 102 List of Tables Table 1 Population Table 2 Population by Age... 9 Table 3 Housing Characteristics Table 4 Seasonal Housing Table 5 Seasonal Population Estimate Table 6 Types of Industries Table 7 Equalization Report by Class Table Hazard Ranking Table Hazard Ranking Table 10 Presidential Disasters Affecting Chippewa County Table 11 Governor Disasters Affecting Chippewa County Table 12 Michigan Weather Related Deaths Table 13 Chippewa County Storm Events Table 14 Snowfall Threshhold... 53

7 List of Maps Map 1 Local Units of Government Map 2 Distance to Major Cities in Michigan Map 3 Shade Relief Map 4 Average Wind Speed Map 5 Average Precipitation Map 6 Lakes and Rivers Map 7 Watershed Basins and Wetlands Map 8 Population Density Map Forest Types Map 10 Transportation Network Map 11 Bridge Concern Area # Map 12 Bridge Concern Area # Map 13 Bridge Concern Area # Map 14 Bridge Concern Area # Map 15 Bridge Concern Area # Map 16 Bridge Concern Area # Map 17 Bridge Concern Area # Map 18 Bridge Concern Area # Map 19 Bridge Concern Area # Map 20 Bridge Concern Area #