Peninsula Hazard Mitigation Plan 2011 Update June 2011 Submitted by: Dewberry 8401 Arlington Boulevard Fairfax, Virginia 22031-4666 703.849.0100 June 2011 Peninsula Hazard Mitigation Plan 2011 Update June 2011 Peninsula Hazard Mitigation Plan 2011 Update June 2011 Peninsula Hazard Mitigation Plan 2011 Update Peninsula Hazard Mitigation Plan Update Table of Contents Executive Summary ..................................................................... ES-1 Chapter 1: Introduction ................................................................. 1-1 Scope .......................................................................................... 1-2 Plan Organization .......................................................................... 1-3 Chapter 2: Regional Profile ............................................................ 2-1 Location ....................................................................................... 2-1 Geography.................................................................................... 2-1 Climate ........................................................................................ 2-1 Hydrology ..................................................................................... 2-2 Population Growth and Development Trends ...................................... 2-4 History of the Peninsula Region ........................................................ 2-5 City of Hampton, Virginia .............................................................. 2-5 City of Newport News, Virginia ...................................................... 2-6 City of Williamsburg, Virginia ........................................................ 2-7 James City County, Virginia .......................................................... 2-8 York County, Virginia ................................................................... 2-9 Planning Process ............................................................................ 2-9 Peninsula Hazard Mitigation Planning Committee ............................ 2-11 Public Involvement and Citizen Input............................................ 2-12 Incorporation of Existing Plans and Studies ................................... 2-14 Chapter 3: Community Profiles and Capability Assessments .......... 3-1 City of Hampton Profile ................................................................... 3-5 Capability Assessment – City of Hampton ....................................... 3-5 Form of Governance .................................................................... 3-7 Guiding Community Documents ..................................................... 3-7 Hampton Community Plan .......................................................... 3-7 Zoning & Development Standards ................................................ 3-8 Stormwater Program and Fees ...................................................... 3-9 Public Education .......................................................................... 3-9 Emergency Preparedness ............................................................ 3-10 Other Mitigation Activities ........................................................... 3-11 City of Newport News Profile ......................................................... 3-12 Capability Assessment – City of Newport News .............................. 3-12 Form of Governance .................................................................. 3-13 Guiding Community Documents ................................................... 3-14 Framework for the Future (2030) .............................................. 3-14 Zoning & Development Standards .............................................. 3-15 Building Codes .......................................................................... 3-15 Flood Protection Plan .................................................................. 3-16 Stormwater Program and Fees .................................................... 3-16 Public Education ........................................................................ 3-17 i Peninsula Hazard Mitigation Plan Update Emergency Preparedness ............................................................ 3-18 Other Mitigation Activities ........................................................... 3-18 City of Williamsburg Profile ........................................................... 3-19 Capability Assessment – City of Williamsburg ................................ 3-19 Form of Governance .................................................................. 3-20 Guiding Community Documents ................................................... 3-20 Comprehensive Plan ................................................................ 3-21 Zoning & Development Standards .............................................. 3-22 Stormwater Program .................................................................. 3-23 Public Education ........................................................................ 3-23 Emergency Preparedness ............................................................ 3-23 Other Mitigation Activities ........................................................... 3-25 Heritage Tree Program Goals .................................................... 3-25 James City County Profile ............................................................. 3-25 Capability Assessment – James City County .................................. 3-25 Form of Governance .................................................................. 3-27 Guiding Community Documents ................................................... 3-27 2003 Comprehensive Plan ........................................................ 3-27 Zoning & Development Standards .............................................. 3-28 Stormwater Program .................................................................. 3-29 Public Education ........................................................................ 3-30 Emergency Preparedness ............................................................ 3-31 York County Profile ...................................................................... 3-32 Capability Assessment – York County ........................................... 3-32 Form of Governance .................................................................. 3-34 Guiding Community Documents ................................................... 3-34 Charting the Course to 2025: The County of York Comprehensive Plan ............................................................................................ 3-34 Zoning & Development Standards .............................................. 3-36 Stormwater Program .................................................................. 3-37 Public Education ........................................................................ 3-38 Emergency Preparedness ............................................................ 3-39 Warning................................................................................. 3-39 Evacuation ............................................................................. 3-40 Special Needs Program ............................................................ 3-41 Community Emergency Response Teams (CERT) ......................... 3-41 Other Mitigation Activities ........................................................... 3-42 State, Regional, and Federal Capabilities ......................................... 3-43 State Capabilities ...................................................................... 3-43 Virginia Department of Emergency Management (VDEM) .............. 3-43 Virginia Department of Conservation and Recreation (VDCR) ......... 3-44 Department of Housing and Community Development .................. 3-46 Regional Capabilities .................................................................. 3-47 ii Peninsula Hazard Mitigation Plan Update HR STORM and HR CLEAN ........................................................ 3-47 Hampton Roads Emergency Management Committee (HREMC) ...... 3-47 Regional Emergency Management Technical Advisory Committee (REMTAC) .............................................................................. 3-48 Surry Power Station Emergency Public Information ...................... 3-48 Federal Capabilities .................................................................... 3-49 The National Flood Insurance Program (NFIP) ............................. 3-49 The Coastal Barrier Resources Act (CBRA) .................................. 3-49 Coastal Zone Management Act .................................................. 3-49 Chapter 4: Hazard Identification and Risk Assessment .................. 4-1 Introduction .................................................................................. 4-1 Hazard Identification ...................................................................... 4-3 2011 Plan Update .......................................................................... 4-3 Federal Disaster Declarations ........................................................ 4-4 National Climatic Data Center (NCDC) Storm Events Database ........... 4-8 NCDC Annualizing Data ................................................................ 4-9 Multi-Hazard Correlation ............................................................. 4-10 Hazard Ranking Methodology ...................................................... 4-11 Population Vulnerability and Density ............................................. 4-12 Geographic Extent ....................................................................