Hazard Mitigation Plan Update OXFORD, CT
Total Page:16
File Type:pdf, Size:1020Kb
Naugatuck Valley Council of Governments Hazard Mitigation Plan Update 2021 – 2026 Municipal Annex for OXFORD, CT 486 Oxford Road Oxford, CT 06478 MMI #3211-29 Prepared for: Prepared by: NAUGATUCK VALLEY COUNCIL OF GOVERNMENTS SLR CONSULTING 47 Leavenworth Street, 3rd Floor 99 Realty Drive Waterbury, CT 06702 Cheshire, Connecticut 06410 (203) 489-0362 (203) 271-1773 www.nvcogct.org www.slrconsulting.com TABLE OF CONTENTS 1.0 INTRODUCTION ......................................................................................................................................... 1-1 1.1 PURPOSE OF ANNEX .................................................................................................................................... 1-1 1.2 PLANNING PROCESS .................................................................................................................................... 1-1 1.3 PHYSICAL SETTING ...................................................................................................................................... 1-1 1.4 LAND COVER ............................................................................................................................................. 1-2 1.5 GEOLOGY .................................................................................................................................................. 1-2 1.6 CLIMATE AND CLIMATE CHANGE .................................................................................................................... 1-3 1.7 DEVELOPMENT TRENDS ................................................................................................................................ 1-5 1.8 HISTORIC AND CULTURAL RESOURCES .............................................................................................................. 1-6 1.9 SOCIAL VULNERABILITY INDEX ........................................................................................................................ 1-7 2.0 MUNICIPAL CAPABILITIES .......................................................................................................................... 2-8 2.1 GOVERNMENTAL STRUCTURE AND CAPABILITIES................................................................................................. 2-8 2.2 INFRASTRUCTURE ...................................................................................................................................... 2-14 2.3 CRITICAL FACILITIES AND EMERGENCY RESPONSE.............................................................................................. 2-14 3.0 FLOODING ............................................................................................................................................... 3-17 3.1 EXISTING CAPABILITIES ............................................................................................................................... 3-17 3.2 VULNERABILITIES AND RISK ASSESSMENT ........................................................................................................ 3-20 4.0 HURRICANES AND TROPICAL STORMS .................................................................................................... 4-26 4.1 EXISTING CAPABILITIES ............................................................................................................................... 4-26 4.2 VULNERABILITIES AND RISK ASSESSMENT ........................................................................................................ 4-27 5.0 SUMMER STORMS AND TORNADOES ..................................................................................................... 5-29 5.1 EXISTING CAPABILITIES ............................................................................................................................... 5-29 5.2 VULNERABILITIES AND RISK ASSESSMENT ........................................................................................................ 5-30 6.0 WINTER STORMS ..................................................................................................................................... 6-31 6.1 EXISTING CAPABILITIES ............................................................................................................................... 6-31 6.2 VULNERABILITIES AND RISK ASSESSMENT ........................................................................................................ 6-32 7.0 GEOLOGICAL HAZARDS ........................................................................................................................... 7-34 7.1 EXISTING CAPABILITIES ............................................................................................................................... 7-34 7.2 VULNERABILITIES AND RISK ASSESSMENT ........................................................................................................ 7-34 8.0 DAM FAILURE .......................................................................................................................................... 8-36 8.1 EXISTING CAPABILITIES ............................................................................................................................... 8-36 8.2 VULNERABILITIES AND RISK ASSESSMENT ........................................................................................................ 8-37 9.0 WILDFIRES ............................................................................................................................................... 9-39 9.1 EXISTING CAPABILITIES ............................................................................................................................... 9-39 9.2 VULNERABILITIES AND RISK ASSESSMENT ........................................................................................................ 9-39 10.0 MITIGATION STRATEGIES AND ACTIONS ............................................................................................... 10-42 10.1 GOALS AND OBJECTIVES ........................................................................................................................... 10-42 10.2 STATUS OF MITIGATION STRATEGIES AND ACTIONS FROM PREVIOUS HMP .......................................................... 10-42 10.3 PRIORITIZATION OF STRATEGIES AND ACTIONS ............................................................................................... 10-45 10.4 MITIGATION STRATEGIES AND ACTIONS IMPLEMENTATION TABLE ...................................................................... 10-45 Municipal Annexes: Oxford 1.0 INTRODUCTION 1.1 Purpose of Annex This Hazard Mitigation Plan (HMP) annex provides a community-specific hazard risk assessment, capability analysis, and evaluation and prioritization of hazard mitigation measures and projects. Background information and the regional effects of pertinent natural hazards are discussed in the main body of the Naugatuck Valley Council of Governments (NVCOG) Multi-Jurisdictional Hazard Mitigation Plan. This annex is designed to supplement the information presented in the Multi-Jurisdictional HMP with more specific local detail, and is not to be considered a standalone document. The primary goal of this HMP, including this Municipal Annex, is to identify natural hazard risks and mitigation opportunities in order to reduce the loss of or damage to life, property, infrastructure, and natural, cultural, and economic resources. This includes the reduction of public and private damage costs. Limiting losses of and damage to life and property will also reduce the social, emotional, and economic disruption associated with a natural disaster. 1.2 Planning Process A meeting was held with Oxford representatives on September 23, 2020 for the purposes of initial data collection and review of necessary updates for this document. The meeting was convened by the HMP local coordinator, Scott Pelletier. Additional input was provided at the two regional municipal staff workshops, held on November 18, 2020, and February 3, 2021. Public input collected at public workshops and through an online survey have also informed development of this HMP update. 1.3 Physical Setting The Town of Oxford was incorporated as a town in 1798. It is located in western New Haven County in southern Connecticut approximately 18 miles north of Bridgeport and 16 miles northwest of New Haven. It is bordered to the north by the Town of Middlebury, to the east by the Borough of Naugatuck and the Town of Beacon Falls, to the south by the Towns of Seymour and Monroe and the City of Shelton, and to the west by the Towns of Newtown and Southbury. The varying terrain and land uses in the community results in vulnerability to an array of natural hazards. Oxford is part of both the Naugatuck River Valley and the Housatonic River Valley. The topography of the community is characterized by higher elevations that slope towards the two river valleys. Peaks in the northern part of the community reach elevations nearing 900 feet above sea level, while the majority of the community lies at elevations between 200 and 700 feet above sea level. Oxford is characterized by several substantial north-south trending ridges including Hull’s Hill, the Mount Pisgah Ridge, Bowers Hill, Fivemile NVCOG Hazard Mitigation Plan Update 1-1 May 2021 Municipal Annexes: Oxford Hill, Jacks Hill, Towantic Hill, and Hunters Mountain along with many small parallel and orthogonally oriented valleys. 1.4 Land Cover The land area of Oxford is approximately 32.6 square miles with an additional 0.8 square miles of water. Oxford