Dade County, Missouri

Dade County, Missouri Natural Hazard Mitigation Plan FEMA APPROVED FINAL DRAFT June 2014

Dade County, Missouri Natural Hazard Mitigation Plan For Dade County, its Incorporated Communities, School Districts and Other Special Districts June 2014 FEMA Approved Final Draft 901 S. National Ave. Springfield, MO 65804-0027 (417) 836-6900 http://smcog.missouristate.edu

Executive Summary... viii Part 1: Introduction... 1-1 Purpose of Plan... 1-1 Basis for Planning Authority... 1-2 Assurance Statements of Compliance with Federal Regulations... 1-3 Plan Organization and Content... 1-3 Plan Adoption... 1-4 Public Involvement... 1-4 Participating Jurisdictions and Participation Requirements... 1-5 Plan Preparation Methodology and Schedule... 1-6 Part 2: Community Profile... 2-1 Dade County Location... 2-1 Historical Overview... 2-2 Form of Government... 2-3 Physical Characteristics... 2-3 Demographic and Socio-Economic Characteristics... 2-7 Economy, Employment, and Industry... 2-13 Land Use... 2-16 Housing... 2-19 Transportation... 2-20 Utilities... 2-22 Key Community Facilities and Services... 2-24 Centers of Large Population Concentration... 2-30 Flood Plain Management/Wetlands... 2-35 Environmental Concerns... 2-36 Endangered Species... 2-36 Historic Properties... 2-37 Community Plans... 2-37 Building and Fire Codes... 2-38 Community Partnerships... 2-38 Significant Cultural/Social Issues... 2-39 Media Relations... 2-39 County/Community Summary Profiles... 2-40 Part 3: Risk Assessment... 3-1 Natural Hazard Identification/Elimination Process... 3-1 Community-wide Hazard Profile and Hazards Identified... 3-1 Hazards not Included and Reasons for Elimination... 3-2 Hazard Event Probability and Severity Ratings... 3-3 Hazard Profile Format... 3-3 Tornado... 3-4 Severe Thunderstorm (high wind, hail, lightning)... 3-10 i

Flood (riverine and flash)... 3-17 Severe Winter Weather (snow, ice, extreme cold)... 3-32 Drought... 3-39 Heat Wave... 3-43 Earthquake... 3-47 Dam Failure... 3-54 Wildfire... 3-59 Sinkhole Hazard... 3-65 Hazard Composites... 3-70 Multi-Jurisdictional Risk Assessment... 3-77 Vulnerability Assessment and Estimates of Potential Loss by Jurisdiction... 3-79 Part 4: City/County Capability Assessment... 4-1 Mitigation Management Policies... 4-1 Existing Plans... 4-1 Mitigation Programs... 4-2 Capabilities and Responsibilities... 4-4 Vulnerability Assessment of Policies and Programs... 4-14 Part 5: Mitigation... 5-1 Introduction to Mitigation... 5-1 How Mitigation Differs from Preparedness, Response, and Recovery... 5-4 Mitigation Plan Benefits... 5-5 Goals, Objectives, and Mitigation Actions... 5-5 Implementation and Administration by Participating Jurisdictions... 5-11 Mitigation Actions by Jurisdiction... 5-16 Part 6: Plan Maintenance... 6-1 Plan Monitoring and Evaluation... 6-1 Public Participation in Plan Maintenance... 6-1 Updating the Plan... 6-2 Part 7: Appendices Appendix A: Signed Plan Adoption Resolutions... A-1 Appendix B: Acronyms...B-1 Appendix C: Glossary...C-1 Appendix D: References... D-1 Appendix E: Planning Process Documentation... E-1 List of Tables Table 1-1 Record of Participation... 1-6 Table 1-2 Planning Meetings Summary... 1-8 Table 1-3 Participating Jurisdictions Plan Meeting Attendance... 1-10 Table 2-1 Dade County Population Change, 2000-2010... 2-8 ii

Table 2-2 Dade County Age Specific Population, 2000-2010... 2-8 Table 2-3 Dade County and Municipalities, Age Group Characteristics, 2010... 2-10 Table 2-4 Dade County Race and Ethnicity, 2010... 2-11 Table 2-5 Dade County Household Characteristics, 2010... 2-11 Table 2-6 Dade County Household Income 2006-2010... 2-12 Table 2-7 Poverty Status Over Last 12 Months, 2006-2010... 2-12 Table 2-8 Educational Attainment of Population 25 Years and Older, 2006-2010.. 2-13 Table 2-9 Dade County Employment by Industry, 2006-2010... 2-14 Table 2-10 Numbers of Businesses and Employees in Dade County, 2011... 2-15 Table 2-11 Place of Employment, 2008-2010... 2-15 Table 2-12 Public Lands in Dade County... 2-16 Table 2-13 Dade County Housing Characteristics, 2000-2010... 2-19 Table 2-14 Dade County Housing Units in Structure, 2006-2010... 2-19 Table 2-15 Dade County Utility Service Providers... 2-23 Table 2-16 Medical Facilities in Dade County... 2-26 Table 2-17 Dade County Ambulance Service... 2-26 Table 2-18 Government Buildings in Dade County... 2-29 Table 2-19 Schools in Dade County... 2-30 Table 2-20 Dade County Major Employers... 2-32 Table 2-21 Residential Care Facilities in Dade County... 2-32 Table 2-22 Licensed and License-Exempt Child Care Facilities in Dade County... 2-33 Table 2-23 Senior Centers in Dade County... 2-33 Table 2-24 Dade County National Flood Program Participation... 2-35 Table 2-25 Endangered and Threatened Species in Dade County... 2-36 Table 2-26 Historic Sites in Dade County... 2-37 Table 2-27 Media Resources Serving Dade County... 2-39 Table 2-28 Summary Profile of Dade County and Incorporated Communities... 2-40 Table 3-1 Cascading Hazards Resulting from Natural Disasters... 3-2 Table 3-2 Hazard Event Probability and Severity Rating Definitions... 3-3 Table 3-3 Fujita and Enhanced Fujita Tornado Damage Scale... 3-5 Table 3-4 Enhanced Fujita Damage Indicators and Degrees of Damage... 3-7 Table 3-5 Tornado Occurrence in Dade County, 1956-2012... 3-9 Table 3-6 Probability of Future Tornado Occurrence by F-Scale... 3-10 Table 3-7 Tornado Severity Rating by EF-Scale... 3-10 Table 3-8 National Weather Service Thunderstorm Wind Gust Legend... 3-11 Table 3-9 Beaufort Wind Scale... 3-13 Table 3-10 TORRO Hailstorm Intensity Scale... 3-14 Table 3-11 High Wind Causing Damage in Dade County, 1993-2012... 3-15 Table 3-12 Hail Occurrence Causing Damage in Dade County, 1993-2012... 3-16 Table 3-13 Probability of Future Thunderstorm Occurrence... 3-16 Table 3-14 Thunderstorm Severity Rating... 3-17 Table 3-15 Flood Related Watches and Warnings... 3-21 Table 3-17 Dade County Flood Events by Month, 1993-2012... 3-23 Table 3-18 Flood Event Probability of Occurrence in Dade County... 3-23 Table 3-19 Flood Severity Rating... 3-23 iii

Table 3-20 National Weather Service Extreme Cold Risk Legend... 3-33 Table 3-21 Wind Chill Advisory and Warning Definitions... 3-34 Table 3-22 Excessive Cold Threat Level... 3-35 Table 3-23 Severe Winter Weather Summary Dade County, 1996-2012... 3-36 Table 3-24 Severe Winter Weather Causing Damages in Dade County, 1996-2012. 3-36 Table 3-25 Probability of Future Severe Winter Weather Occurrence... 3-38 Table 3-26 Severe Winter Weather Severity Rating... 3-38 Table 3-27 Drought Occurrence in Dade County, 1996-2012... 3-41 Table 3-28 Risk Level for Possible Heat Disorders... 3-44 Table 3-29 Heat Index/Heat Disorder... 3-44 Table 3-30 Heat Wave Response Levels... 3-44 Table 3-31 Regional Heat Wave Occurrence Affecting Dade County, 1996-2012... 3-46 Table 3-32 Earthquake Probable Severity... 3-50 Table 3-33 Dade County Dams... 3-56 Table 3-34 Classes of Downstream Environment Zone... 3-57 Table 3-35 Missouri Fire Statistics 2010... 3-59 Table 3-36 Land Cover in Dade County... 3-60 Table 3-37 Classification of Wildland Urban Interface... 3-61 Table 3-38 Dade County Wildfire Occurrence by Cause 2002-2012... 3-63 Table 3-39 Probability of Wildfire Occurrence by Danger Level... 3-64 Table 3-40 Sinkhole: Probability of Occurrence... 3-68 Table 3-41 Overall Summary of Hazard Vulnerability by Jurisdiction... 3-78 Table 3-42 Critical Facilities, Definitions and Examples... 3-82 Table 3-43 Inventory of Critical Infrastructure by Jurisdiction in Dade County... 3-83 Table 3-44 Building Count by Type for Jurisdictions in Dade County... 3-83 Table 3-45 Unincorporated Dade Co. Area Wide Hazard Vulnerability Percentages.3-84 Table 3-46 Village of Arcola Area Wide Hazard Vulnerability Percentages... 3-84 Table 3-47 Village of Dadeville Area Wide Hazard Vulnerability Percentages... 3-85 Table 3-48 City of Everton Area Wide Hazard Vulnerability Percentages... 3-85 Table 3-49 City of Greenfield Area Wide Hazard Vulnerability Percentages... 3-86 Table 3-50 City of Lockwood Area Wide Hazard Vulnerability Percentages... 3-86 Table 3-51 Village of South Greenfield Area Wide Hazard Vulnerability Percentages... 3-87 Table 3-52 Dade County Local Area Hazard Vulnerability Percentages... 3-88 Table 3-53 Village of Arcola Local Area Hazard Vulnerability Percentages... 3-89 Table 3-54 Village of Dadeville Local Area Hazard Vulnerability Percentages... 3-90 Table 3-55 City of Everton Local Area Hazard Vulnerability Percentages... 3-91 Table 3-56 City of Greenfield Local Area Hazard Vulnerability Percentages... 3-92 Table 3-57 City of Lockwood Local Area Hazard Vulnerability Percentages... 3-93 Table 3-58 Village of South Greenfield Local Area Hazard Vulnerability Percentages... 3-94 Table 3-59 Vulnerability Assessment Asset Inventory for Dade County School Districts... 3-95 Table 3-60 Dadeville R-II School District Vulnerability Assessment... 3-95 Table 3-61 Everton R-III School District Vulnerability Assessment... 3-96 Table 3-62 Greenfield R-IV School District Vulnerability Assessment... 3-96 iv

Table 3-63 Lockwood R-1 School District Vulnerability Assessment... 3-97 Table 3-64 Vulnerability Percentages Dade County R-IV Rural Fire Protection District... 3-98 Table 3-65 Dade County Nursing Home District Vulnerability Percentages... 3-99 Table 3-66 Future Development Projection for Structures by Material Type and Jurisdiction... 3-100 Table 4-1 City Plans and Regulations... 4-17 Table 4-2 Dade County Capability Assessment... 4-17 Table 5-1 Definitions of STAPLEE Criteria... 5-7 Table 5-2 Modified STAPLEE with Simple Scores... 5-8 Table 5-3 Dade County Mitigation Actions Evaluation... 5-9 Table 5-4 Overview of Mitigation Actions by Hazards Addressed... 5-13 Table 5-5 Overview of Mitigation Actions for Dade County... 5-16 Table 5-6 Overview of Mitigation Actions for Arcola... 5-20 Table 5-7 Overview of Mitigation Actions for Dadeville... 5-23 Table 5-8 Overview of Mitigation Actions for Everton... 5-26 Table 5-9 Overview of Mitigation Actions for Greenfield... 5-30 Table 5-10 Overview of Mitigation Actions for Lockwood... 5-34 Table 5-11 Overview of Mitigation Actions for South Greenfield... 5-38 Table 5-12 Overview of Mitigation Actions for Dadeville R-II School District... 5-42 Table 5-13 Overview of Mitigation Actions for Everton R-III School District... 5-45 Table 5-14 Overview of Mitigation Actions for Greenfield R-IV School District... 5-48 Table 5-15 Overview of Mitigation Actions for Lockwood R-1 School District... 5-51 Table 5-16 Overview of Mitigation Actions for Dade County R-IV Rural Fire Protection District... 5-54 Table 5-17 Overview of Mitigation Actions for Dade County Nursing Home District... 5-57 List of Figures Figure 2-1 Dade County, Missouri... 2-1 Figure 2-2 Physiographic Regions of Missouri... 2-4 Figure 2-3 Dade County Watersheds... 2-6 Figure 2-4 Dade County Population, 1900-2010... 2-7 Figure 2-5 Dade County Population Density, 2010... 2-9 Figure 2-6 Dade County Land Cover... 2-18 Figure 2-7 Dade County Transportation Infrastructure... 2-21 Figure 2-8 Dade County Fire Protection... 2-25 Figure 2-9 Dade County Key Facilities... 2-28 Figure 2-10 Dade County School Districts... 2-31 Figure 2-11 Dade County Vulnerable Facilities... 2-34 Figure 3-1 Wind Zones in the United States... 3-8 Figure 3-2 Dade County 100-Year Floodplain... 3-24 v

Figure 3-3 Arcola 100-Year Floodplain... 3-25 Figure 3-4 Everton 100-Year Floodplain... 3-26 Figure 3-5 Greenfield 100-Year Floodplain... 3-27 Figure 3-6 Lockwood 100-Year Floodplain... 3-28 Figure 3-7 South Greenfield 100-Year Floodplain... 3-29 Figure 3-8 Dade County Stream-Road Intersections... 3-30 Figure 3-9 Dade County High Priority Low Water Crossings in Poor Condition... 3-31 Figure 3-10 National Weather Service Windchill Chart... 3-35 Figure 3-11 Palmer Drought Index... 3-40 Figure 3-12 Heat Index Chart... 3-43 Figure 3-13 Earthquake Shock... 3-47 Figure 3-14 Projected Earthquake Intensities, 7.6 Magnitude... 3-50 Figure 3-15 Wabash Valley, Central Illinois and New Madrid Seismic Zones... 3-52 Figure 3-16 Nemaha Uplift... 3-53 Figure 3-17 Observable Defects... 3-55 Figure 3-18 Dade County Dams... 3-58 Figure 3-19 Types of Wildfire... 3-59 Figure 3-20 Dade County Wildfire Hazard Areas... 3-62 Figure 3-21 Bowl-shaped Sinkhole... 3-66 Figure 3-22 Collapse Sinkhole... 3-66 Figure 3-23 Dade County Geologic Map Showing Locations of Sinkholes... 3-69 Figure 3-24 Dade County Hazard Composite... 3-71 Figure 3-25 Arcola Hazard Composite... 3-72 Figure 3-26 Everton Hazard Composite... 3-73 Figure 3-27 Greenfield Hazard Composite... 3-74 Figure 3-28 Lockwood Hazard Composite... 3-75 Figure 3-29 South Greenfield Hazard Composite... 3-76 Figure 4-1 NOAA Radio Transmission-Joplin Station... 4-11 Figure 4-2 NOAA Radio Transmission-El Dorado Station... 4-12 Figure 4-3 NOAA Radio Transmission-Springfield Station... 4-13 vi

Executive Summary Executive Summary The is the first hazard mitigation plan developed by Dade County in conformance with the requirements of the Disaster Mitigation Act of 2000. Natural hazard mitigation is defined as actions or activities taken to reduce or eliminate losses resulting from natural hazards. The Dade County Natural Hazard Mitigation Plan is intended as a guide and resource for county and municipal governments, public organizations, residents, and other community stakeholders that are interested in reducing the potentially disastrous effects of natural hazards on life and property in Dade County. The Plan was prepared and written with the participation of Dade County government and the following Dade County communities, school districts, and special districts: Arcola, Dadeville, Everton, Greenfield, Lockwood, South Greenfield, Dadeville R-II School District, Everton R-III School District, Greenfield R-IV School District, Lockwood R-1 School District, Dade County R-IV Rural Fire Protection District, and the Dade County Nursing Home District. An open planning process was conducted in the development of the Plan. The public and other community organizations and private sector entities were invited to participate and assist in the planning process. The Plan profiles of ten natural hazards which threaten lives and property in some, or all, of the participating jurisdictions. These hazards include Tornado, Severe Thunderstorm, Flood, Severe Winter Weather, Extreme Heat, Drought, Wildfire, Earthquake, Dam Failure, and Sinkhole. All hazards were evaluated with regard to previous occurrence, probability and severity of future occurrence, and the potential impact on each jurisdiction. A comprehensive mitigation strategy was developed through the consideration of potential hazard threats, current capabilities, and the potential resources available to mitigate the effects of the identified hazards. The goals of this mitigation strategy are: Goal 1: Protect citizens from injury and loss of life. Goal 2: Preserve and maintain property, infrastructure and the county s local economies. Goal 3: Ensure continued operation of government and emergency functions during a natural hazard event. The Plan has been formally adopted by two of the participating school districts and will be adopted by the remaining participating jurisdictions following approval of the Plan by the Federal Emergency Management Agency (FEMA). Participation in, and formal adoption of, the Plan qualifies a jurisdiction to apply for FEMA pre-disaster mitigation grants and the mitigation portion of post-disaster mitigation grants. The Dade County Natural Hazard Mitigation Plan will be updated in five years, as required by FEMA. It will be evaluated and maintained on an annual basis prior to this update. vii