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MHMP Multi-Hazard Mitigation Plan

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MHMP Multi-Hazard Mitigation Plan 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 September 2019 Multi-Hazard Mitigation Plan 21 MHMP December 2019 Kitsap County Multi-Hazard Mitigation Plan (MHMP) 2019 • 1 This page intentionally left blank. Kitsap County Multi-Hazard Mitigation Plan (MHMP) 2019 • i This page intentionally left blank. Kitsap County Multi-Hazard Mitigation Plan (MHMP) 2019 • iii Table of Contents COUNCIL RESOLUTION .......................................................................................................... II RECORD OF CHANGES ........................................................................................................... 1 EXECUTIVE SUMMARY ........................................................................................................... 3 INTRODUCTION ....................................................................................................................... 5 THE PLANNING PROCESS .....................................................................................................11 Mitigation Planning Defined ...................................................................................................11 Lead Agency and Stakeholder Steering Committee Participation ..........................................12 Hazard Identification & Vulnerability Analysis (HIVA) Process ...............................................21 Hazard Mitigation Process for Kitsap County .........................................................................23 Public Outreach & Engagement.............................................................................................28 Plan Review & Adoption Process ..........................................................................................35 Plan Evaluation & Maintenance .............................................................................................36 Integration with other Local Plans ..........................................................................................39 KITSAP COUNTY PROFILE ....................................................................................................41 Kitsap County ..........................................................................................................................42 People ...................................................................................................................................43 Economy ...............................................................................................................................46 Built Environment ..................................................................................................................47 Natural Environment ..............................................................................................................57 Kitsap County Hazard & Disaster History ..............................................................................61 MITIGATION STRATEGIES & RECOMMENDATIONS ............................................................65 Mitigation Strategy Updates from 2013 MHMP ......................................................................65 Funding/Financial Resources ................................................................................................66 Earthquake Mitigation Strategies ...........................................................................................67 Hazard Overview ...................................................................................................................67 Location .................................................................................................................................67 Effects ...................................................................................................................................69 Extent ....................................................................................................................................75 History ...................................................................................................................................78 Probability of Future Events ...................................................................................................80 Climate Change Impacts .......................................................................................................81 Vulnerability Summary ...........................................................................................................81 Conclusions ...........................................................................................................................82 Mitigation Strategies ..............................................................................................................82 Landslide & Erosion Mitigation Strategies ............................................................................85 Hazard Overview ...................................................................................................................85 Location/Extent ......................................................................................................................85 Effects ...................................................................................................................................86 History ...................................................................................................................................87 Probability of Future Events ...................................................................................................88 Kitsap County Multi-Hazard Mitigation Plan (MHMP) 2019 • iv Climate Change Impacts .......................................................................................................91 Vulnerability Summary ...........................................................................................................92 Conclusions ...........................................................................................................................92 Mitigation Strategies ..............................................................................................................93 Tsunami Mitigation Strategies ...............................................................................................95 Hazard Overview ...................................................................................................................95 Location .................................................................................................................................95 Effects ...................................................................................................................................97 Extent ....................................................................................................................................97 History ................................................................................................................................. 101 Probability of Future Events ................................................................................................. 102 Climate Change Impacts ..................................................................................................... 103 Vulnerability Summary ......................................................................................................... 103 Conclusions ......................................................................................................................... 104 Mitigation Strategies ............................................................................................................ 104 Wildfire & Urban Fire Mitigation Strategies ......................................................................... 107 Hazard Overview ................................................................................................................. 107 Location ............................................................................................................................... 107 Effects ................................................................................................................................. 107 Extent .................................................................................................................................. 108 History ................................................................................................................................. 108 Probability of Future Events ................................................................................................. 108 Climate Change Impacts ..................................................................................................... 110 Vulnerability Summary ......................................................................................................... 110 Conclusions ......................................................................................................................... 110 Mitigation Strategies ............................................................................................................ 111 Flood Mitigation Strategies .................................................................................................. 113 Hazard Overview ................................................................................................................. 113 Location/Extent .................................................................................................................... 113 Effects ................................................................................................................................
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