Multi-Hazard Mitigation Plan Update 2017 Town of Milton, NH Adopted 2006 Updated November, 2012 Updated ________, 2017 Submitted to the New Hampshire Homeland Security & Emergency Management By the Town of Milton, NH with Strafford Regional Planning Commission This project was funded from the fiscal year 2015 Hazard Mitigation Grant Program (HMGP), which was awarded to the Department of Safety, Division of Homeland Security and Emergency Management (HSEM) from the Federal Emergency Management Agency (FEMA). 2017 Multi-Hazard Mitigation Plan | Town of Milton, NH Page 1 Acknowledgements This plan was created through a grant from New Hampshire Homeland Security and Emergency Management (HSEM). The following organizations have contributed invaluable assistance and support for this project: The 2006 and 2012 Milton Multi-Hazard Mitigation Committee New Hampshire Homeland Security Emergency Management (HSEM) Town of Milton The 2017 Town of Milton Multi-Hazard Mitigation Planning Committee 9 people have attended meetings and/or been instrumental in completing this plan: Nick Marique Fire Chief/EMD, Town of Milton Bruce Woodruff Town Planner, Town of Milton Devon Pageau Assistance Fire Chief, Town of Milton Rich Krauss Police Chief, Town of Milton Pat Smith Department of Public Works Director, Town of Milton Heather Thibodeau Town Administrator, Town of Milton Michelle Beauchamp Town Clerk, Town of Milton Brian Boyers Code Enforcement Officer, Town of Milton Jason Behrens Fire Department, Town of Milton Plan Prepared and Authored By Kyle Pimental, Principal Regional Planner Strafford Regional Planning Commission 150 Wakefield Street, Suite 12 Rochester, NH 03867 603-994-3500 www.strafford.org Date of Conditional Approval from HSEM: 7/18/2017 Date of Adoption by Town: Date of Final Approval from FEMA: Cover: April 2007 Flooding Event, Milton NH Photo credit: Doreen Valente, former Selectmen’s Secretary 2017 Multi-Hazard Mitigation Plan | Town of Milton, NH Page 2 Executive Summary ........................................................................................................................................................................................ 5 Chapter 1: Multi-Hazard Mitigation Planning Process ......................................................................................................................... 7 Authority ....................................................................................................................................................................................................... 7 Purpose and History .................................................................................................................................................................................. 7 Jurisdiction and Scope of the Plan ........................................................................................................................................................ 8 Multi-Hazard Mitigation Goals ............................................................................................................................................................... 9 Multi-Hazard Mitigation Planning Process ......................................................................................................................................... 9 Chapter 2: Community Profile ................................................................................................................................................................... 15 Overview ..................................................................................................................................................................................................... 15 Housing ....................................................................................................................................................................................................... 16 Building Permit Data ............................................................................................................................................................................... 16 Development Trends .............................................................................................................................................................................. 17 Development within the FEMA Floodplain ....................................................................................................................................... 18 Land Use Changes ................................................................................................................................................................................... 19 Chapter 3: Asset Inventory ......................................................................................................................................................................... 20 Critical Facilities and Key Resources.................................................................................................................................................... 20 Chapter 4: Vulnerable Structures and Potential Loss ......................................................................................................................... 23 Critical Facilities/Key Resources and Other Assets .......................................................................................................................... 23 Buildings and Utilities .............................................................................................................................................................................. 25 Chapter 5: National Flood Insurance Program (NFIP) ........................................................................................................................ 26 Milton’s National Flood Insurance Program Status ........................................................................................................................ 26 Chapter 6: Hazards & Mitigation Strategies .......................................................................................................................................... 28 Overview ..................................................................................................................................................................................................... 28 Rating Probability, Severity, and Overall Risk of Future Disasters .............................................................................................. 28 Hazards Ratings in Milton, NH ............................................................................................................................................................. 29 Hazard Vulnerability Table .................................................................................................................................................................... 30 Declared Disasters and Emergency Declarations ........................................................................................................................... 31 Flooding ...................................................................................................................................................................................................... 34 Hurricane and Tropical Storms ............................................................................................................................................................ 37 Tornado & Downburst............................................................................................................................................................................ 39 Severe Winter Weather .......................................................................................................................................................................... 42 Severe Thunderstorms & Lightning .................................................................................................................................................... 45 Wildfire ........................................................................................................................................................................................................ 47 Earthquakes & Landslide ....................................................................................................................................................................... 48 Extreme Temperatures ........................................................................................................................................................................... 51 Drought ...................................................................................................................................................................................................... 53 Public Health Threats .............................................................................................................................................................................. 55 Hazardous Materials ............................................................................................................................................................................... 59 Hazards Not Included in this Plan ....................................................................................................................................................... 60 2017 Multi-Hazard Mitigation Plan | Town of Milton, NH Page 3 Chapter