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Town of Warren Hazard Mitigation Plan

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TOWN OF WARREN HAZARD MITIGATION PLAN 2014 MMI #3843-04 Prepared for the: TOWN OF WARREN, CONNECTICUT Warren Town Hall 50 Cemetery Road Warren, CT 06754 (203) 868-7881 www.warren.webtownhall.com Prepared by: MILONE & MACBROOM, INC. 99 Realty Drive Cheshire, Connecticut 06410 (203) 271-1773 www.miloneandmacbroom.com The preparation of this report has been financed in part through funds provided by the Connecticut Department of Emergency Services and Public Protection (DESPP) Division of Emergency Management and Homeland Security (DEMHS) under a grant from the Federal Emergency Management Agency. The contents of this report reflect the views of the Town of Warren and do not necessarily reflect the official views of DEMHS. The report does not constitute a specification or regulation. Copyright 2014 Milone & MacBroom, Inc. ACKNOWLEDGEMENTS & CONTACT INFORMATION This plan was prepared under the direction of the Town of Warren. The following individual should be contacted with questions or comments regarding the plan: Mr. Craig Nelson First Selectman Town of Warren 7 Sackett Hill Road Warren, CT 06754 (860) 868-7881 Phone This Hazard Mitigation Plan could not have been completed without the time and dedication of the following individuals at the local level: Mr. Jack Travers, Former First Selectman Ms. Colleen Frisbie, First Selectman’s Office Ms. Miranda Pettit, Emergency Management Director Mr. Craig Nelson, Former Land Use Office Official Mr. Joe Manley, Building Official Mr. Joe Perry, Road Foreman Mr. Stan MacMillian, Fire Marshall Ms. Jocelyn Ayer, Northwestern Connecticut Council of Governments (NWCCOG) The consulting firm of Milone & MacBroom, Inc. (MMI) prepared the subject plan. The following individuals at MMI may be contacted prior to plan adoption with questions or comments regarding the plan using the contact information on the title page or the electronic mail addresses below: Mr. David Murphy, P.E., CFM Associate [email protected] TABLE OF CONTENTS Page EXECUTIVE SUMMARY ....................................................................................................... ES-1 1.0 INTRODUCTION 1.1 Background and Purpose .............................................................................................................. 1-1 1.2 Hazard Mitigation Goals ............................................................................................................... 1-4 1.3 Identification of Hazards and Document Overview ..................................................................... 1-5 1.4 Discussion of STAPLEE Ranking Method ................................................................................... 1-8 1.5 Discussion of Benefit-Cost Ratio ................................................................................................ 1-10 1.6 Documentation of the Planning Process ..................................................................................... 1-10 1.7 Coordination with Neighboring Communities ............................................................................ 1-17 2.0 COMMUNITY PROFILE 2.1 Physical Setting ............................................................................................................................. 2-1 2.2 Existing Land Use ......................................................................................................................... 2-1 2.3 Geology ......................................................................................................................................... 2-4 2.4 Climate .......................................................................................................................................... 2-4 2.5 Drainage Basins and Hydrology ................................................................................................... 2-8 2.6 Population and Demographic Setting ......................................................................................... 2-10 2.7 Governmental Structure and Capabilities ................................................................................... 2-11 2.8 Development Trends ................................................................................................................... 2-11 2.9 Critical Facilities, Sheltering Capabilities, and Emergency Response Capabilities ................... 2-12 3.0 FLOODING 3.1 Setting ........................................................................................................................................... 3-1 3.2 Hazard Assessment ....................................................................................................................... 3-1 3.3 Historic Record ............................................................................................................................. 3-4 3.4 Existing Capabilities ..................................................................................................................... 3-6 3.5 Vulnerabilities and Risk Assessment ............................................................................................ 3-8 3.5.1 Vulnerability Analysis of Repetitive Loss Properties ........................................................ 3-9 3.5.2 Vulnerability Analysis of Critical Facilities ...................................................................... 3-9 3.5.3 Vulnerability Analysis of Areas Along Watercourses ....................................................... 3-9 3.5.4 HAZUS-MH Vulnerability Analysis ............................................................................... 3-10 3.6 Potential Mitigation Strategies and Actions ................................................................................ 3-11 3.6.1 Prevention ........................................................................................................................ 3-11 3.6.2 Property Protection .......................................................................................................... 3-13 3.6.3 Emergency Services ......................................................................................................... 3-15 3.6.4 Public Education and Awareness ..................................................................................... 3-15 3.6.5 Natural Resource Protection ............................................................................................ 3-16 3.6.6 Structural Projects ............................................................................................................ 3-16 3.7 Summary of Specific Strategies and Actions .............................................................................. 3-17 TOWN OF WARREN HAZARD MITIGATION PLAN WARREN, CONNECTICUT DECEMBER 2014 TC-i TABLE OF CONTENTS (Continued) Page 4.0 HURRICANES AND TROPICAL STORMS 4.1 Setting ........................................................................................................................................... 4-1 4.2 Hazard Assessment ....................................................................................................................... 4-1 4.3 Historic Record ............................................................................................................................. 4-2 4.4 Existing Capabilities ..................................................................................................................... 4-5 4.5 Vulnerabilities and Risk Assessment ............................................................................................ 4-6 4.6 Potential Mitigation Strategies and Actions ................................................................................ 4-13 4.6.1 Prevention ........................................................................................................................ 4-13 4.6.2 Property Protection .......................................................................................................... 4-13 4.6.3 Emergency Services ......................................................................................................... 4-13 4.6.4 Public Education and Awareness ..................................................................................... 4-14 4.6.5 Structural Projects ............................................................................................................ 4-14 4.7 Summary of Specific Strategies and Actions .............................................................................. 4-14 5.0 SUMMER STORMS AND TORNADOES 5.1 Setting ........................................................................................................................................... 5-1 5.2 Hazard Assessment ....................................................................................................................... 5-1 5.3 Historic Record ............................................................................................................................. 5-5 5.4 Existing Capabilities ..................................................................................................................... 5-7 5.5 Vulnerabilities and Risk Assessment ............................................................................................ 5-8 5.6 Potential Mitigation Strategies and Actions .................................................................................. 5-9 5.7 Summary of Specific Strategies and Actions .............................................................................. 5-10 6.0 WINTER STORMS 6.1 Setting
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