LINCOLN COUNTY, WASHINGTON HAZARD MITIGATION PLAN 2019 UPDATE Prepared By Northwest Management, Inc. This page was intentionally left blank. ii Foreword “Hazard mitigation is any sustained action taken to reduce or eliminate the long-term risk to human life and property from hazards. Mitigation activities may be implemented prior to, during, or after an incident. However, it has been demonstrated that hazard mitigation is most effective when based on an inclusive, comprehensive, long-term plan that is developed before a disaster occurs.”1 The original Lincoln County, Washington Multi-Hazard Mitigation Plan was developed in 2010 – 2011 by the Lincoln County MHMP planning committee in cooperation with Northwest Management, Inc. of Moscow, Idaho (NMI). The 2019 update process was also conducted by NMI in collaboration with Lincoln County Emergency Management and the Planning Team. The updated document is now referred to as the Lincoln County, Washington Hazard Mitigation Plan. This Plan satisfies the requirements for a local hazard mitigation plan and a flood mitigation plan under 44 CFR Part 201.6 and 79.6. 1 Federal Emergency Management Agency. “Local Multi-Hazard Mitigation Planning Guidance.” July 1, 2008. iii This page was intentionally left blank. iv v This page was intentionally left blank. vi Table of Contents Foreword ................................................................................................................................................. iii Overview of this Plan and its Development ................................................................................. 2 Phase I Hazard Assessment ....................................................................................................................................................... 3 Goals and Guiding Principles .................................................................................................................................................... 4 Documenting the Planning Process .............................................................................................. 18 The Planning Team .................................................................................................................................................................... 18 Description of the Planning Process................................................................................................................................... 18 Planning Committee Meetings .............................................................................................................................................. 21 Public Involvement ..................................................................................................................................................................... 23 Documented Review Process ................................................................................................................................................. 27 Plan Monitoring and Maintenance ..................................................................................................................................... 27 Lincoln County Characteristics....................................................................................................... 32 Description of the Region ........................................................................................................................................................ 32 Geography and Natural Resources ..................................................................................................................................... 32 Demographics ............................................................................................................................................................................... 35 Socioeconomics ............................................................................................................................................................................ 36 Development Trends .................................................................................................................................................................. 37 Hazard Management Capabilities ...................................................................................................................................... 39 Regional and Local Hazard Profiles .............................................................................................. 42 Flood ................................................................................................................................................................................................. 42 Earthquake .................................................................................................................................................................................... 47 Landslide ......................................................................................................................................................................................... 55 Severe Weather ............................................................................................................................................................................ 59 Wildland Fire ................................................................................................................................................................................ 63 Avalanche ....................................................................................................................................................................................... 73 Seiche ................................................................................................................................................................................................ 77 Volcano ............................................................................................................................................................................................ 79 Drought ........................................................................................................................................................................................... 85 Jurisdictional Risk and Vulnerability Assessments ................................................................ 90 Lincoln County Annex ............................................................................................................................................................... 90 City of Davenport Annex ....................................................................................................................................................... 127 City of Sprague Annex ............................................................................................................................................................ 135 Town of Almira Annex ........................................................................................................................................................... 145 Town of Creston Annex .......................................................................................................................................................... 155 Town of Harrington Annex .................................................................................................................................................. 163 Town of Odessa Annex ........................................................................................................................................................... 173 Town of Reardan Annex ........................................................................................................................................................ 183 Town of Wilbur Annex ........................................................................................................................................................... 191 vii Lincoln Hospital District Annex......................................................................................................................................... 201 Odessa Memorial Healthcare Center Annex ................................................................................................................ 205 Lincoln County Conservation District Annex .............................................................................................................. 208 Mitigation Strategy .......................................................................................................................... 248 Mechanisms to Incorporate Mitigation Strategies .................................................................................................. 248 Prioritization of Action Items............................................................................................................................................. 249 Jurisdictional Mitigation Strategies ........................................................................................... 251 Lincoln County Annex ............................................................................................................................................................ 251 City of Davenport ..................................................................................................................................................................... 257 City of Sprague .........................................................................................................................................................................