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 |
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