Hazard Mitigation Plan SHAWANO AND MENOMINEE COUNTIES DRAFT DRAFTPlan Update: August 31, 2016 REPORT DOCUMENTATION ABSTRACT: Shawano and Menominee Counties are vulnerable to a wide range of hazards that threaten the safety of residents and have the potential to damage or destroy both public and private property and disrupt the local economy and overall quality of life. While the threat from hazards may never be fully eliminated the Shawano and Menominee Counties Hazard Mitigation Plan recommends specific actions designed to protect residents, business owners and the built environment. GRANT/SPONSORING AGENCY: This plan was funded by the Federal Emergency Management Agency through the Department of Military Affairs Division of Emergency Management, via grant PDMC-PL- 05-WI-2014-005. ACKNOWLEDGEMENTS: Shawano and Menominee Counties would like to acknowledge the contribution of EPTEC, Inc. throughout the plan update process. EPTEC, Inc. Lenora G. Borchardt 7027 Fawn Lane, Sun Prairie, WI 53590-9455 608-834-0802 [email protected] DRAFT Contents Table of Contents Table of Contents ............................................................................................................ 2 Acronyms ........................................................................................................................ 6 Introduction and Background ........................................................................................ 10 Plan Overview .................................................................................................... 11 Previous Planning Efforts and Legal Basis ......................................................... 11 Plan Preparation, Adoption, and Maintenance ................................................... 16 Physical Characteristics ................................................................................................ 21 General Community Introduction ........................................................................ 21 Plan Area and Geology ...................................................................................... 22 Topography ........................................................................................................ 24 Shawano County ................................................................................................ 25 Menominee County ............................................................................................ 25 Climate ............................................................................................................... 26 Hydrology ........................................................................................................... 30 Soil Types ........................................................................................................... 34 Wetlands ............................................................................................................ 34 Land Use ............................................................................................................ 36 Vegetation .......................................................................................................... 37 Demographics ............................................................................................................... 38 Human Settlement Patterns................................................................................ 38 Population .......................................................................................................... 39 Transportation Network ...................................................................................... 42 Land Use and Development Trends ................................................................... 42 Public Safety Support ......................................................................................... 43 Archaeological and Historical Resources ........................................................... 45 Hazard Analysis and Previous Mitigation Projects ........................................................ 47 All Hazards .................................................................................................................... 57 Vulnerability ........................................................................................................ 58 Hazard Mitigation Strategies............................................................................... 58 Drought and Dust Storms .............................................................................................. 65 Physical Characteristics ..................................................................................... 65 Frequency of Occurrence ................................................................................... 67 Vulnerability ........................................................................................................ 70 Hazard Mitigation Strategies............................................................................... 71 Earthquakes .................................................................................................................. 72 Physical Characteristics ..................................................................................... 72 Frequency ofDRAFT Occurrence ................................................................................... 74 Vulnerability ........................................................................................................ 78 Hazard Mitigation Strategies............................................................................... 78 Flooding and Dam Failure ............................................................................................. 79 Physical Characteristics ..................................................................................... 79 Watersheds ........................................................................................................ 84 Floodplain Regulations ....................................................................................... 92 Page 2 Contents Frequency of Occurrence ................................................................................... 92 Vulnerability ........................................................................................................ 94 Hazard Mitigation Strategies............................................................................... 95 Wildfires ...................................................................................................................... 100 Physical Characteristics ................................................................................... 100 Frequency of Occurrence ................................................................................. 101 Vulnerability ...................................................................................................... 101 Hazard Mitigation Strategies............................................................................. 104 Severe Temperatures .................................................................................................. 106 Characteristics .................................................................................................. 106 Physical Characteristics: Heat .......................................................................... 106 Physical Characteristics: Cold .......................................................................... 108 Frequency of Occurrence: Heat ........................................................................ 109 Frequency of Occurrence: Cold ........................................................................ 110 Vulnerability ...................................................................................................... 111 Hazard Mitigation Strategies............................................................................. 111 Storms: Hail ................................................................................................................. 113 Physical Characteristics ................................................................................... 113 Frequency of Occurrence ................................................................................. 114 Vulnerability ...................................................................................................... 115 Hazard Mitigation Strategies............................................................................. 116 Storms: Lightning ........................................................................................................ 117 Physical Characteristics ................................................................................... 117 Frequency of Occurrence ................................................................................. 118 Vulnerability ...................................................................................................... 118 Hazard Mitigation Strategies............................................................................. 119 Storms: Thunderstorms ............................................................................................... 120 Physical Characteristics ................................................................................... 121 Frequency of Occurrence ................................................................................. 121 Vulnerability ...................................................................................................... 122 Hazard