This page intentionally left blank Table of Contents Section ONE Introduction ........................................................................................................................ 1-1 1.1 Overview .................................................................................................. 1-1 1.2 Hazard Mitigation Planning ..................................................................... 1-1 1.3 Disaster Mitigation Act of 2000 .............................................................. 1-1 1.4 Grant Programs with Mitigation Plan Requirements ............................... 1-1 1.4.1 Stafford Act Grant Programs ...................................................... 1-2 1.4.2 National Flood Insurance Act Grant Programs .......................... 1-2 1.5 Community Profiles ................................................................................. 1-3 1.5.1 Clark County .............................................................................. 1-4 1.5.2 City of Henderson ...................................................................... 1-6 1.5.3 City of Las Vegas ....................................................................... 1-6 1.5.4 City of Mesquite ......................................................................... 1-7 1.5.5 City of North Las Vegas............................................................. 1-7 1.5.6 Clark County School District ..................................................... 1-8 1.5.7 Clark County Water Reclamation District ................................. 1-8 1.5.8 Development Trends and Land Use ........................................... 1-9 1.6 Description of the Hazard Mitigation Plan ............................................ 1-12 1.6.1 Section 2: Record of Adoption ................................................. 1-12 1.6.2 Section 3: Planning Process ..................................................... 1-12 1.6.3 Section 4: Hazard Analysis ...................................................... 1-12 1.6.4 Section 5: Vulnerability Analysis ............................................ 1-12 1.6.5 Section 6: Capability Assessment ............................................ 1-12 1.6.6 Section 7: Mitigation Strategy .................................................. 1-13 1.6.7 Section 8: Plan Maintenance .................................................... 1-13 1.6.8 Section 9: References ............................................................... 1-13 1.6.9 Appendices ............................................................................... 1-13 Section TWO Prerequisites ...................................................................................................................... 2-1 2.1 Overview .................................................................................................. 2-1 2.2 Adoption Documentation ......................................................................... 2-1 Section THREE Planning Process ........................................................................................................... 3-1 3.1 Overview .................................................................................................. 3-1 3.2 Initial Planning Process, 2002 - 2007 ...................................................... 3-1 3.3 Plan Update Process, 2012 ....................................................................... 3-2 3.4 Public Outreach and Stakeholder Invovement ......................................... 3-6 3.5 Incorporation of Existing Plans and Other Relevant Information ........... 3-7 Section FOUR Hazards Analysis ............................................................................................................. 4-1 4.1 Overview .................................................................................................. 4-1 4.2 Hazard Identification and Screening ........................................................ 4-1 4.3 Hazard Profiles......................................................................................... 4-5 4.3.1 Dam Failure ................................................................................ 4-6 4.3.2 Drought....................................................................................... 4-8 i Table of Contents 4.3.3 Earthquake ................................................................................ 4-12 4.3.4 Epidemic/Infectious Disease .................................................... 4-16 4.3.5 Flood and Flash Flooding ......................................................... 4-20 4.3.6 Infestation ................................................................................. 4-24 4.3.7 Subsidence ................................................................................ 4-28 4.3.8 Terrorism .................................................................................. 4-29 4.3.9 Utility Failure ........................................................................... 4-31 4.3.10 Wildfire .................................................................................... 4-37 Section FIVE Vulnerability Analysis ........................................................................................................ 5-1 5.1 Overview .................................................................................................. 5-1 5.2 Asset Inventory ........................................................................................ 5-1 5.3 Methodology ............................................................................................ 5-2 5.4 Data Limitations ....................................................................................... 5-2 5.5 Exposure Analysis ................................................................................... 5-3 5.6 RL Properties ........................................................................................... 5-4 5.7 Summary Of Impacts ............................................................................... 5-4 Section SIX Capability Assessment ........................................................................................................ 6-1 6.1 Overview .................................................................................................. 6-1 6.2 Capability Assessment Recommendations by FEMA ............................. 6-1 Section SEVEN Mitigation Strategy ........................................................................................................ 7-1 7.1 Overview .................................................................................................. 7-1 7.2 Mitigation Goals ...................................................................................... 7-1 7.3 Identification and Analysis of Mitigation Actions ................................... 7-2 7.4 Implementation of Mitigation Actions................................................... 7-12 7.5 Identification and Analysis of Mitigation Actions: NFIP Compliance . 7-13 Section EIGHT Plan Maintenance ............................................................................................................ 8-1 8.1 Overview .................................................................................................. 8-1 8.2 Monitoring, Evaluating, and Updating the Plan ...................................... 8-1 8.3 Implementation Through Existing Planning Mechanisms ....................... 8-2 8.4 Continued Public Involvement ................................................................ 8-3 Section NINE References ......................................................................................................................... 9-1 9.1 References ................................................................................................ 9-1 Appendix A FEMA Local Plan Review Tool ............................................................................................ 9-1 Appendix B Adoption Resolutions .......................................................................................................... 9-1 Appendix C Hazard Figures ..................................................................................................................... 9-1 Appendix D Planning Committee Meetings ............................................................................................ 9-1 ii Table of Contents Appendix E Public Outreach ................................................................................................................... 9-1 Appendix F Plan Maintenance Documents ............................................................................................ 9-1 Appendix G Clark County ........................................................................................................................ 9-1 Appendix H City of Henderson ................................................................................................................ 9-1 Appendix I City of Las Vegas .................................................................................................................. 9-1 Appendix J City of Mesquite .................................................................................................................... 9-1 Appendix K City of North Las Vegas ...................................................................................................... 9-1 Appendix L Clark County School District ............................................................................................... 9-1 Appendix M Clark County