Washington County Multi-Jurisdiction Natural Hazard Mitigation Plan Meramec Regional Planning Commission ● November 2017 4 Industrial Drive, St. James, MO 65559 Phone: (573) 265-2993 Fax: (573) 265-3550 CONTRIBUTORS Washington County Hazard Mitigation Planning Committee The individuals invited to participate in the Washington County hazard mitigation planning committee are as follows: Jurisdictional Representatives Name Title Department Jurisdiction/Agency/Organization Marvin Wright Presiding Commissioner County Washington Co. Doug Short Associate Commissioner County Washington Co. Cody Brinley Associate Commissioner County Washington Co. Jeanette Allen County Clerk County Washington Co. Zach Jacobsen Sherriff Sherriff’s Dept. Washington Co. Emergency Doris Coffman EMD Washington Co. Management Forman Road & Bridge Forman Road & Bridge Washington Co. Nicholas Hughey Administrator Health Dept. Washington Co. John Robinson III Chairperson City Admin. Caledonia Bob Haworth Fire Chief Fire Dept. Belgrade Nina Gilliam Clerk City Admin. Caledonia Michael Green Maintenance/Water Public Works Caledonia Chuck Hampton Fire Chief Fire Dept. Caledonia Doris Keim Mayor City Admin. Irondale Amanda Shelton Clerk City Admin. Irondale Water, Street, & Waste Patrick Forrester Public Works Irondale Superintendent Ryan Hardy Fire Chief Fire Dept. Irondale Gary Mitchell Deputy Police Dept. Irondale Emergency Bill Byers EMD Irondale Management Robin Husky Chairperson City Admin. Mineral Point T.R. Dudley Mayor City Admin. Potosi Roger P. Coleman Clerk City Admin. Potosi Jeff Benson Public Works Director Public Works Potosi Emergency Doris Coffman EMD Potosi Management Roger LaChance Fire Chief Fire Dept. Potosi Michael Gum Chief of Police Police Dept. Potosi David Hoffmann Jr. Fire Chief Fire Dept. Richwoods Alex McCaul Superintendent School District Kingston K-14 Randy Davis Superintendent School District Potosi R-III Bethany Deal Superintendent School District Richwoods R-VII Brad Crocker Superintendent School District Valley R-VI *Sign in sheets from planning meetings are included in Appendix B. i The individuals invited to represent stakeholders on the Washington County hazard mitigation planning committee are as follows: Stakeholder Representatives Name Title Agency/Organization Michele Meyer Interim CEO Washington Co. Memorial Hospital Ameren UE Ameren UE Ameren UE Genifer Cape Community Relations Rep. Crawford Electric Cooperative Ronald S. Johnson Captain MSHP, Troop C Supervisor Maintenance Supervisor MoDOT Socket Internet Socket Internet Services Socket Internet Services Services Administrator Administrator South Haven 8 Administrator Administrator Potosi Manor Administrator Administrator Georgian Gardens Nursing Home Administrator Administrator American Red Cross Steve Besemer Regional Coordinator MO SEMA Matt Shively Biologist/Reg. Project Manager U.S. Army Corps of Engineers Paul J. Taylor Regional Administrator FEMA Region VII Josh Hundley Biologist U.S. Fish & Wildlife Service Resource Science Resource Science Division Missouri Dept. of Conservation Division J.R. Flores State Conservationist USDA, NRCS Century Link Century Link Century Link Independent Independent Journal Independent Journal Journal ii TABLE OF CONTENTS Executive Summary ................................................................................................................. vi Contributors ................................................................................................................................. i Table of Contents ....................................................................................................................... iii Prerequisites ............................................................................................................................ viii 1 Introduction and Planning Process ................................................................................... 1.1 1.1 Purpose .................................................................................................................. 1.1 1.2 Background and Scope .......................................................................................... 1.2 1.3 Plan Organization ................................................................................................... 1.2 1.4 Planning Process .................................................................................................... 1.4 1.4.1 Multi-Jurisdictional Participation ............................................................... 1.7 1.4.2 The Planning Steps .................................................................................. 1.9 2 Planning Area Profile and Capabilities .............................................................................. 2.1 2.1 Washington County Planning Area Profile .............................................................. 2.2 2.1.2 Geography, Geology, and Topography .................................................... 2.3 2.1.3 Climate ..................................................................................................... 2.9 2.1.4 Population/Demographics ........................................................................ 2.9 2.1.5 History .................................................................................................... 2.13 2.1.6 Occupations ........................................................................................... 2.14 2.1.7 Agriculture .............................................................................................. 2.14 2.1.8 FEMA Hazard Mitigation Assistance Grants in Planning Area ................ 2.15 2.2 Jurisdictional Profiles and Mitigation Capabilities .................................................. 2.15 Unincorporated Washington County................................................................ 2.15 Village of Caledonia ........................................................................................ 2.19 City of Irondale ................................................................................................ 2.22 Village of Mineral Point ................................................................................... 2.25 iii City of Potosi ................................................................................................... 2.28 Public School District Profiles and Mitigation Capabilities ............................... 2.37 Critical Facilities .............................................................................................. 2.41 3 Risk Assessment ................................................................................................................ 3.1 3.1 Hazard Identification ............................................................................................... 3.4 3.1.1 Review of Existing Mitigation Plans .......................................................... 3.4 3.1.2 Review Disaster Declaration History ........................................................ 3.7 3.1.3 Research Additional Sources ................................................................... 3.9 3.1.4 Hazards Identified .................................................................................. 3.12 3.1.5 Multi-Jurisdictional Risk Assessment...................................................... 3.14 3.2 Assets at Risk ....................................................................................................... 3.14 3.2.1 Total Exposure of Population and Structures ......................................... 3.14 3.2.2 Critical and Essential Facilities and Infrastructure .................................. 3.15 3.2.3 Other Assets .......................................................................................... 3.19 3.3 Future Land Use and Development ...................................................................... 3.23 3.4 Hazard Profiles, Vulnerability, and Problem Statements ....................................... 3.26 3.4.1 Dam Failure ........................................................................................... 3.29 3.4.2 Drought .................................................................................................. 3.61 3.4.3 Earthquakes ........................................................................................... 3.74 3.4.4 Extreme Heat ......................................................................................... 3.88 3.4.5 Fires (Urban/Structural and Wild) ........................................................... 3.95 3.4.6 Flooding (Flash and River) ................................................................... 3.104 3.4.7 Land Subsidence/Sinkholes ................................................................. 3.127 3.4.8 Thunderstorm/High Winds/Lightning/Hail ............................................. 3.134 3.4.9 Tornado ............................................................................................... 3.151 3.4.10 Winter Weather/Snow/Ice/Severe Cold .............................................. 3.164 4 Mitigation Strategy .............................................................................................................. 4.1 iv 4.1 Goals ...................................................................................................................... 4.1 4.2 Identification and Analysis of Mitigation Actions ...................................................... 4.2 4.3 Implementation of Mitigation Actions .....................................................................