Tulsa County Oklahoma Multi-Jurisdictional Multi-Hazard Mitigation Plan Update - 2015 Participating Jurisdictions: Tulsa County Town of Sperry Berryhill Public School Keystone Public School Liberty Public School Sperry Public School Draft for Comments: May 18, 2015 Tulsa County i Multi-Hazard Mitigation Plan Blank Tulsa County ii Multi-Hazard Mitigation Plan Table of Contents: Table of Contents: .............................................................................................................. iii Chapter 1: ............................................................................................................................ 1 Introduction ......................................................................................................................... 1 1.1 About the Plan......................................................................................................... 1 1.1.1 Purpose ............................................................................................................. 1 1.1.2 Scope…………………………………...………………………….………….1 1.1.3 Authority ........................................................................................................... 2 1.1.4 Funding ............................................................................................................. 2 1.1.5 Major Disaster Declarations ............................................................................. 2 1.1.6 Goals…………………………………………………………………………..2 1.1.7 Point of Contact ................................................................................................ 5 1.2 Community Description .......................................................................................... 6 1.2.1 Geography ........................................................................................................ 6 1.2.2 Climate.............................................................................................................. 6 1.2.3 History .............................................................................................................. 6 1.2.4 Population and Demographics .......................................................................... 6 1.2.5 Local Utilities--Lifelines .................................................................................. 7 1.2.6 Economy ........................................................................................................... 7 1.2.7 Industry ............................................................................................................. 7 1.2.8 Future Development ......................................................................................... 8 1.3.1 Comprehensive Planning and Zoning .............................................................. 9 1.3.2 Floodplain Management ................................................................................ 10 1.3.3 Building Codes .............................................................................................. 10 1.3.4 Fire Protection and Insurance ........................................................................ 10 1.4 Existing Plans Incorporating Hazard Mitigation .................................................. 11 1.4.1 Emergency Operations Plans ......................................................................... 11 1.4.2 Capital Improvement Plan ............................................................................. 11 Chapter 2: .......................................................................................................................... 13 The Planning Process ........................................................................................................ 13 2.1 Documentation of the Planning Process ............................................................... 13 Tulsa County iii Multi-Hazard Mitigation Plan 2.1.1 Step One: Organize to Prepare the Plan ........................................................ 13 2.1.2 Step Two: Involve the Public ........................................................................ 17 2.1.3 Step Three: Coordinate with Other Agencies and Organizations .................. 18 2.1.4 Step Four: Assess the Hazard ........................................................................ 21 2.1.5 Step Five: Assess the Problem....................................................................... 22 2.1.6 Step Six: Set Goals ........................................................................................ 22 2.1.7 Step Seven: Review Possible Activities ........................................................ 23 2.1.8 Step Eight: Draft an Action Plan ................................................................... 23 2.1.9 Step Nine: Adopt the Plan ............................................................................. 23 2.1.10 Step Ten: Implement, Evaluate, and Revise .................................................. 23 Chapter 3: .......................................................................................................................... 25 Risk Assessment and Vulnerability Analysis ................................................................... 25 3.1 Identifying Hazards ............................................................................................... 25 3.2 Profiling the Hazards ............................................................................................ 25 3.2.1 Flood Hazard ................................................................................................. 26 3.2.2 Tornado Hazard ............................................................................................. 30 3.2.3 High Wind Hazard ......................................................................................... 33 3.2.4 Lightning Hazard ........................................................................................... 36 3.2.5 Hail Storm Hazard ......................................................................................... 38 3.2.6 Winter Storm Hazard ..................................................................................... 39 3.2.7 Heat Hazard ................................................................................................... 41 3.2.8 Drought Hazard ............................................................................................. 43 3.2.9 Expansive Soils Hazard ................................................................................. 45 3.2.10 Wildfire Hazard .............................................................................................. 47 3.2.11 Earthquake Hazard ......................................................................................... 49 3.2.12 Hazardous Material Hazard ............................................................................ 51 3.2.13 Dam Break Hazard ......................................................................................... 54 3.3 Assessing Vulnerability: Identifying Assets ......................................................... 57 3.3.1 Flood Hazard ................................................................................................. 62 3.3.2 Tornado Hazard ............................................................................................. 64 3.3.3 Dam Break Hazard ........................................................................................ 64 3.3.4 High Wind Hazard ......................................................................................... 64 3.3.5 Lightning Hazard ........................................................................................... 64 3.3.6 Hail Storm Hazard ......................................................................................... 65 Tulsa County iv Multi-Hazard Mitigation Plan 3.3.7 Winter Storm Hazard ..................................................................................... 65 3.3.8 Heat Hazard ................................................................................................... 65 3.3.9 Drought Hazard ............................................................................................. 65 3.3.10 Expansive Soils Hazard .................................................................................. 65 3.3.11 Wildfire Hazard .............................................................................................. 66 3.3.12 Earthquake Hazard ......................................................................................... 67 3.3.13 Hazardous Material Hazard ............................................................................ 67 3.4 Assessing Vulnerability: Estimating Potential Losses .......................................... 68 3.4.1 Flood Hazard ................................................................................................. 68 3.4.2 Tornado Hazard ............................................................................................. 69 3.4.3 Dam Break Hazard ........................................................................................ 70 3.4.4 Hazardous Material Hazard ............................................................................ 70 3.4.5 Expansive Soils.............................................................................................. 71 3.4.7 Wildfires ........................................................................................................ 71 3.4.8 All Other Hazards 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