State of New Hampshire Multi Hazard Mitigation Plan Update 2018
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State of New Hampshire Multi-Hazard Mitigation Plan Update 2018 [This Page Intentionally Left Blank] MULTI HAZARD MITIGATION PLAN - 2018 2 Administrative Handling Instructions The following State of New Hampshire Multi-Hazard Mitigation Plan is an Unclassified compilation of open source and publicly available information on the threats and hazards that have the potential to impact the State of New Hampshire, information relating to disasters and emergencies that the State has experienced, and a strategy for reducing or eliminating the long term risks posed by the threats and hazards. This document is authorized for public release. For questions or additional information, please contact New Hampshire Homeland Security and Emergency Management at 603-271-2231 or by email at [email protected] MULTI HAZARD MITIGATION PLAN - 2018 3 [This Page Intentionally Left Blank] MULTI HAZARD MITIGATION PLAN - 2018 4 Table of Contents Administrative Handling Instructions ..................................................................................... 3 Certificate of Adoption .......................................................................................................... 9 Record of Changes ............................................................................................................... 11 Record of Distribution/Availability ...................................................................................... 11 Acknowledgements ............................................................................................................. 11 Executive Summary ............................................................................................................. 13 Introduction ........................................................................................................................ 15 What are Threats and Hazards? .......................................................................................................... 15 What is Hazard Mitigation? ................................................................................................................ 16 Background and Authority .................................................................................................................. 16 Purpose ............................................................................................................................................... 17 Scope and Jurisdiction......................................................................................................................... 17 Assurances .......................................................................................................................................... 17 Plan Goals and Objectives .................................................................................................... 19 Overarching Goals ............................................................................................................................... 19 Natural Hazard Objectives .................................................................................................................. 19 Technological Hazard Objectives ........................................................................................................ 19 Human-caused Hazard Objectives ...................................................................................................... 20 Planning Methodology ........................................................................................................ 21 Basic Methodology.............................................................................................................................. 21 Meeting Schedule and Activities ......................................................................................................... 21 State Multi-Hazard Mitigation Planning Committee .......................................................................... 23 Narrative Description of the Process .................................................................................................. 24 Federal Agency Coordination .............................................................................................................. 27 State Agency Coordination ................................................................................................................. 27 Participation ........................................................................................................................................ 27 Private Entity, Non-Governmental Organizations, Academic, Business and Industry, and Other Sector Participation ............................................................................................................................. 28 Plan and Program Integration ............................................................................................................. 28 State Profile ........................................................................................................................ 31 State Overview .................................................................................................................................... 31 Geography and Climate ...................................................................................................................... 32 Economy .............................................................................................................................................. 32 Government ........................................................................................................................................ 33 Higher Education ................................................................................................................................. 33 Transportation Systems ...................................................................................................................... 33 Population Changes and Estimations .................................................................................................. 35 Current and Future Development Trends ........................................................................................... 36 Development in Hazard Prone Areas .................................................................................................. 37 Hazard Identification and Risk Assessment .......................................................................... 41 Introduction ........................................................................................................................................ 41 MULTI HAZARD MITIGATION PLAN - 2018 5 Threat and Hazard Identification and Risk Assessment (THIRA) Integration ...................................... 41 2018 State of New Hampshire Multi-Hazard Mitigation Plan Update Hazard Identification ............. 43 Hazard Changes between 2013 and 2018 Plans ................................................................................. 44 History of Disaster Declarations in New Hampshire .............................................................. 45 List of Major Disaster Declarations ..................................................................................................... 45 List of Major Disaster Declarations (cont…) ........................................................................................ 46 *Note: Italicized values are subject to change due to disaster being recently declared. .................. 46 List of Emergency Declarations ........................................................................................................... 46 List of Non-Declared Major Events since 2013 ................................................................................... 47 Hazard Profiles and History of Events................................................................................... 48 Natural Hazards ......................................................................................................................... 48 Avalanche ............................................................................................................................................ 48 Coastal Flooding .................................................................................................................................. 51 Inland Flooding.................................................................................................................................... 65 Drought ............................................................................................................................................... 82 Earthquake (>/=4.0) ............................................................................................................................ 90 Extreme Temperatures ....................................................................................................................... 98 High Wind Events .............................................................................................................................. 105 Infectious Diseases ............................................................................................................................ 110 Landslide ........................................................................................................................................... 115 Lightning ............................................................................................................................................ 122 Severe Winter