2018 HAZARD MITIGATION PLAN UPDATE – HOPKINTON, RI 2018 Hazard Mitigation Plan Update Town of Hopkinton, Rhode Island PREPARED FOR Town of Hopkinton, RI Town Hall 1 Town House Road Hopkinton, RI 02833 401-377-7777 PREPARED BY 1 Cedar Street Suite 400 Providence, RI 02903 401-272-8100 February 7, 2018 This page intentionally left blank. 2018 Hazard Mitigation Plan Update – Hopkinton, Rhode Island Table of Contents Executive Summary ........................................................................................................................................... 1 Introduction ........................................................................................................................................................ 2 Plan Purpose .................................................................................................................................................................................. 2 Hazard Mitigation and its Benefits ........................................................................................................................................ 2 Goals.................................................................................................................................................................................................. 4 Background .................................................................................................................................................................................... 5 History .................................................................................................................................................................................. 6 Demographics ................................................................................................................................................................... 7 Government ....................................................................................................................................................................... 7 Land Use Patterns ............................................................................................................................................................ 8 Law Enforcement ............................................................................................................................................................. 8 Fire Protection ................................................................................................................................................................... 8 Emergency Medical Services ....................................................................................................................................... 9 Roads and Bridges .......................................................................................................................................................... 9 Dams .................................................................................................................................................................................. 10 Utilities .............................................................................................................................................................................. 10 Forest and Open Space .............................................................................................................................................. 11 Water Resources ........................................................................................................................................................... 11 Cultural and Historic Resources .............................................................................................................................. 14 Development Trends Since the 2011 Plan .......................................................................................................... 14 Planning Process ..............................................................................................................................................15 Overview ....................................................................................................................................................................................... 15 Hopkinton Hazard Mitigation Committee ...................................................................................................................... 15 The Planning Process ............................................................................................................................................................... 16 Public Input.................................................................................................................................................................................. 18 Natural Hazards ...............................................................................................................................................20 Hazards of Concern .................................................................................................................................................................. 20 Hurricanes (Tropical Cyclones) ................................................................................................................................ 23 Nor’easters ...................................................................................................................................................................... 26 Ice Storm .......................................................................................................................................................................... 28 Snow Storm ..................................................................................................................................................................... 30 Flooding (Riverine and Street/Urban) .................................................................................................................. 33 Dam Failure ..................................................................................................................................................................... 37 Drought ............................................................................................................................................................................ 38 High Winds ...................................................................................................................................................................... 41 Hail ..................................................................................................................................................................................... 44 Lightning .......................................................................................................................................................................... 46 i Table of Contents 2018 Hazard Mitigation Plan Update – Hopkinton, Rhode Island Brushfire ........................................................................................................................................................................... 48 Extreme Temperatures ............................................................................................................................................... 49 Tornadoes ........................................................................................................................................................................ 51 Earthquake ...................................................................................................................................................................... 54 Hazardous Material Spill/Release ........................................................................................................................... 57 Climate Change.......................................................................................................................................................................... 59 Risk Assessment ...............................................................................................................................................61 Facilities Inventory .................................................................................................................................................................... 61 Hazard Mitigation Mapping ................................................................................................................................................. 62 Fiscal Impact Analysis .............................................................................................................................................................. 62 Built Environment ...................................................................................................................................................................... 65 Population Impact Analysis ................................................................................................................................................... 66 Natural Environment ................................................................................................................................................................ 68 Vulnerability of Future Structures ....................................................................................................................................... 69 Community Assets Matrix .....................................................................................................................................................