Multi-Hazard Mitigation Plan TRAVERSE County, Minnesota, 2015 Traverse County Multi-Hazard Mitigation Plan, 2015 This page is intentionally left blank Page | 2 Traverse County Multi-Hazard Mitigation Plan, 2015 Multi-Hazard Mitigation Plan TRAVERSE County, Minnesota 2015 Contact: Traverse County Lynn Siegel, Emergency Management Director 708 3rd Avenue North Wheaton, MN 56296 [email protected] (320) 563-0872 www.co.traverse.mn.us Prepared By: Geospatial Analysis Center College of Liberal Arts University of Minnesota Duluth 329 Cina Hall Duluth, MN 55812 Stacey Stark, Director [email protected] (218) 726-7438 Page | 3 Traverse County Multi-Hazard Mitigation Plan, 2015 This page is intentionally left blank Page | 4 Traverse County Multi-Hazard Mitigation Plan, 2015 Table of Contents Table of Contents .................................................................................................................................. 5 List of Figures ........................................................................................................................................ 7 List of Tables ......................................................................................................................................... 8 Section 1 – Introduction............................................................................................................................ 9 1.1 Introduction .............................................................................................................................. 9 1.1.1 Scope ................................................................................................................................. 9 1.1.2 Hazard Mitigation Definition........................................................................................... 10 1.1.3 Benefits of Mitigation Planning ...................................................................................... 11 1.2 State Mitigation Plan Overview .............................................................................................. 11 Section 2 – Public Planning Process ........................................................................................................ 13 2.1 Planning Team Information .................................................................................................... 13 2.2 Review of Existing Plans .......................................................................................................... 13 2.3 Planning Process Timeline and Steps ...................................................................................... 14 Section 3 – Traverse County Profile ........................................................................................................ 17 3.1 General County Description .................................................................................................... 17 3.2 Environmental Characteristics ................................................................................................ 17 3.3 Hydrography ........................................................................................................................... 18 3.3.1 Groundwater ................................................................................................................... 18 3.3.2 Lakes ................................................................................................................................ 19 3.3.3 Rivers ............................................................................................................................... 19 3.3.4 Wetlands ......................................................................................................................... 20 3.4 Climate .................................................................................................................................... 20 3.5 Demographics ......................................................................................................................... 20 3.6 Economy .................................................................................................................................. 23 3.7 Traverse County Community Services & Infrastructure ......................................................... 24 3.7.1 Health Care Providers ..................................................................................................... 26 3.7.2 Public Safety Providers/Government Services................................................................ 26 3.7.3 Utilities/Communications ............................................................................................... 28 3.7.4 Transportation ................................................................................................................ 28 3.8 Land Use and Ownership ........................................................................................................ 28 Section 4 – Risk Assessment ................................................................................................................... 31 Page | 5 Traverse County Multi-Hazard Mitigation Plan, 2015 4.1 Hazard Identification/Profile................................................................................................... 31 4.1.1 Hazard Identification ....................................................................................................... 31 4.1.2 Vulnerability Assessment by Jurisdiction ........................................................................ 32 4.1.3 Calculated Priority Risk Index .......................................................................................... 34 4.1.4 Hazard Profiling Concept of Planning ............................................................................. 36 4.1.5 GIS and Hazus-MH........................................................................................................... 36 4.1.6 National Climatic Data Center (NCDC) Records .............................................................. 37 4.1.7 FEMA Declared Disasters ................................................................................................ 37 4.2 Vulnerability Assessment ........................................................................................................ 41 4.2.1 Asset Inventory ............................................................................................................... 41 4.2.2 Facility Replacement Costs ............................................................................................. 44 4.3 Future Development ............................................................................................................... 44 4.4 Hazard Profiles ........................................................................................................................ 45 4.4.1 Flash Flood and Riverine Flood ....................................................................................... 45 4.4.2 Wildfire ............................................................................................................................ 61 4.4.3 Severe Winter Storms – Blizzards, Ice Storms ................................................................ 63 4.4.4 Severe Summer Storms (Lightning, Hail, Windstorms, Tornadoes) ................................ 68 4.4.5 Extreme Cold ................................................................................................................... 77 4.4.6 Extreme Heat .................................................................................................................. 79 4.4.7 Drought ........................................................................................................................... 81 4.4.8 Dam Failure ..................................................................................................................... 82 4.4.9 Structure Fires ................................................................................................................. 86 4.4.10 Ground and Surface Water Supply Contamination ........................................................ 87 4.4.11 Infectious Diseases .......................................................................................................... 90 4.4.12 Hazardous Materials ....................................................................................................... 94 4.4.13 Terrorism ......................................................................................................................... 98 Section 5 – Mitigation Strategy ............................................................................................................. 100 5.1 Community Capability Assessment ....................................................................................... 100 5.1.1 National Flood Insurance Program (NFIP) .................................................................... 100 5.1.2 Plans and Ordinances .................................................................................................... 100 5.2 Mitigation Goals .................................................................................................................... 101 5.3 Mitigation Actions and Projects ............................................................................................ 104 Page | 6 Traverse County Multi-Hazard Mitigation Plan, 2015 5.3.1 Hazard Mitigation Actions ............................................................................................. 107 5.3.2