HAZARD MITIGATION REGIONAL PLANNING TEAM Nemaha NRD HMP Regional Planning Team NAME TITLE JURISDICTION Amanda Burki Emergency Manager Johnson and Pawnee Counties Bob Hilske General Manager Nemaha NRD Emergency Manager and Floodplain Brian Kirkendall Richardson County Administrator Gregg Goebel Emergency Manager Otoe County J. Renee Crister Emergency Management Director Nemaha County Emergency Management Deputy Jeff Rowell Nemaha County Director Jill Rogman Administrative Assistant Nemaha NRD Assessor and Floodplain Johnathan Bailey Pawnee County Administrator Nebraska Emergency *McKenzie Slack Recovery Specialist Management Agency Nebraska Emergency *Jessica Scharf Recovery Specialist Management Agency Chief Floodplain Management Nebraska Department of Natural *Katie Ringland Section Resources Nebraska Department of Natural *Adele Phillips Floodplain Mitigation Planner Resources *Becky Appleford Project Manager JEO Consulting Group *Karl Dietrich Planner JEO Consulting Group *Mary Baker Resiliency Strategist JEO Consulting Group *served in an advisory/consultant role Nemaha NRD Multi-Jurisdictional Hazard Mitigation Plan | 2020 I THIS PAGE IS INTENTIONALLY BLANK II Nemaha NRD Multi-Jurisdictional Hazard Mitigation Plan | 2020 TABLE OF CONTENTS Hazard Mitigation Regional Planning Team................................................................................................... I Table of Contents ......................................................................................................................................... III List of Figures ............................................................................................................................................... VI List of Tables .............................................................................................................................................. VIII List of Acronyms ............................................................................................................................................ X Executive Summary ...................................................................................................................................... 1 Introduction ................................................................................................................................................ 1 Goals and Objectives ................................................................................................................................ 3 Summary of Changes ................................................................................................................................ 4 Plan Implementation .................................................................................................................................. 4 Hazard Profiles .......................................................................................................................................... 4 Mitigation Strategies .................................................................................................................................. 8 Section One Introduction ............................................................................................................................... 9 Hazard Mitigation Planning........................................................................................................................ 9 Disaster Mitigation Act of 2000 .................................................................................................................. 9 Hazard Mitigation Assistance .................................................................................................................. 10 Plan Financing and Preparation .............................................................................................................. 10 Section Two Planning Process ................................................................................................................... 11 Introduction .............................................................................................................................................. 11 Multi-Jurisdictional Approach................................................................................................................... 11 Hazard Mitigation Planning Process ....................................................................................................... 12 Organization of Resources ...................................................................................................................... 12 Assessment of Risk ................................................................................................................................. 16 Mitigation Plan Development ................................................................................................................... 21 Plan Adoption and Implementation ......................................................................................................... 27 Section Three Planning Area Profile ........................................................................................................... 29 Introduction .............................................................................................................................................. 29 Planning Area Geographic Summary ...................................................................................................... 29 Demographics and At-Risk Populations .................................................................................................. 31 At-Risk Populations ................................................................................................................................. 32 Built Environment and Structural Inventory ............................................................................................. 35 Historical Sites ......................................................................................................................................... 41 Section Four ................................................................................................................................................ 45 Risk Assessment ......................................................................................................................................... 45 Introduction .............................................................................................................................................. 45 Methodology ............................................................................................................................................ 45 Average Annual Damages and Frequency ............................................................................................. 46 Hazard Identification ................................................................................................................................ 47 Lower Platte South NRD Multi-Jurisdictional Hazard Mitigation Plan | 2020 III Historical Disaster Declarations............................................................................................................... 51 Climate Adaptation .................................................................................................................................. 54 Hazard Profiles ........................................................................................................................................ 59 Agricultural Animal & Plant Disease ........................................................................................................ 63 Chemical & Radiological Fixed Sites ....................................................................................................... 69 Chemical & Radiological transportation .................................................................................................. 75 Dam Failure ............................................................................................................................................. 79 Drought & Extreme Heat ......................................................................................................................... 85 Earthquakes .......................................................................................................................................... 101 Flooding ................................................................................................................................................. 106 High Winds & Tornadoes ....................................................................................................................... 124 Levee Failure ......................................................................................................................................... 132 Severe Thunderstorms .......................................................................................................................... 140 Severe Winter Storms ........................................................................................................................... 145 Terrorism & Civil Disorder ..................................................................................................................... 150 Wildfire ................................................................................................................................................... 152 Section Five Mitigation Strategy ..............................................................................................................