The countywide Hazard Mitigation Plan is currently being updated. For information on the process, content and status, as well as to submit questions and comments, please visit Westchester County Hazard Mitigation Plan 2021 Update

2021 Westchester County Countywide
Hazard Mitigation Plan

Public and Stakeholder Input
Westchester County and the participating municipalities are committed to the continued involvement of the public and stakeholders in the hazard mitigation process, which is on-going as hazard mitigation plans are living documents. The public and all stakeholders are encouraged to review the plan and submit any questions to your local municipal representative or send an e-mail to .

Online Version of Hazard Mitigation Plan

Much of the Hazard Mitigation Plan data and analysis is available on an interactive website.

The following chapters are available by request. Please contact David Kvinge, Assistant Commissioner, at

Plan sections:
Cover and Table of Contents
Section 1 - Introduction
Section 2 - Plan Adoption
Section 3 - Planning Process
Section 4 - County Profile

Section 5  Section 5
Section 5.1 - Methodology and Tools Section 5.2 - Identification of Hazards of Concern
Section 5.3 - Hazard Ranking Section 5.4.1 - Earthquake
Section 5.4.2 - Extreme Temperatures Section 5.4.3 - Flood
Section 5.4.4 - Severe Storm Section 5.4.5 - Severe Winter Storm
Section 5.4.6 - Wildfire Section 5.4.7 - Chemical, Biological, Radiological, Nuclear Incidents
Section 5.4.8 - Cyber Attack Section 5.4.9 - Critical Infrastructure Failure
Section 5.4.10 - Disease Outbreak  
   
Section 6 - Mitigation Strategy  
Section 7 - Plan Maintenance  
Section 8 - Planning Partnership  
   
Section 9
 Section 9
Individual Annexes for Each Municipality Section 9.1 - Westchester County
Section 9.2 - Mount Vernon (C) Section 9.3 - New Rochelle (C)
Section 9.4 - Peekskill (C) Section 9.5 - Rye (C)
Section 9.6 - Yonkers (C) Section 9.7 - Bedford (T)
Section 9.8 - Cortlandt (T) Section 9.9 - Eastchester (T)
Section 9.10 - Greenburgh (T) Section 9.11 - Lewisboro (T)
Section 9.12 - Mamaroneck (T) Section 9.13 - New Castle (T)
Section 9.14 - North Castle (T) Section 9.15 - North Salem (T)
Section 9.16 - Ossining (T) Section 9.17 – Pelham (T) See Section 9.36
Section 9.18 - Pound Ridge (T) Section 9.19 - Rye (T)
Section 9.20 - Somers (T) Section 9.21 - Yorktown (T)
Section 9.22 - Ardsley (V) Section 9.23 - Briarcliff Manor (V)
Section 9.24 - Bronxville (V) Section 9.25 - Buchanan (V)
Section 9.26 - Croton-on-Hudson (V) Section 9.27 - Dobbs Ferry (V)
Section 9.28 - Elmsford (V) Section 9.29 - Harrison (T and V)
Section 9.30 - Hastings-on-Hudson (V) Section 9.31 - Irvington (V)
Section 9.32 - Larchmont (V) Section 9.33 - Mamaroneck (V)
Section 9.34 - Mount Kisco (T and V) Section 9.35 - Ossining (V)
Section 9.36 - Pelham (T and V) Section 9.37 - Pelham Manor (V)
Section 9.38 - Pleasantville (V) Section 9.39 - Port Chester (V)
Section 9.40 - Rye Brook (V) Section 9.41 - Scarsdale (V)
Section 9.42 - Tarrytown (V) Section 9.43 - Tuckahoe (V)
   
Acronyms and Abbreviations  
Glossary  
References  
   
Appendix A - Sample Adoption Resolution  Appendix B - Meeting Documentation
Appendix C - Public and Stakeholder Documentation  Appendix D - Participation Matrix
Appendix E - Action Worksheet Template  Appendix F - FEMA Worksheets
Appendix G - Critical Facility Inventory  
   
Additional Hazard Mitigation Web pages:

Hazard Mitigation Planning
Hazard Mitigation Plan
Hazard Mitigation Maintenance Procedures