0 LFUCG Hazard Mitigation Plan – 2019 Update 1 Contents 1. Executive Summary ................................................................................................................................................4 2. Introduction ............................................................................................................................................................6 2.1 Overview ...........................................................................................................................................................6 2.2 Community Profile ............................................................................................................................................6 3. Planning Process .................................................................................................................................................. 15 3.1. Stakeholder and Public Engagement ............................................................................................................ 15 3.1.1. LFUCG Planning Team ............................................................................................................................ 15 3.1.2. Stakeholders and the Public .................................................................................................................. 16 4. Risk Assessment ................................................................................................................................................... 24 4.1 Identifying Hazard Overview ......................................................................................................................... 25 4.2 Profile Hazard Overview ................................................................................................................................ 26 4.2.1 Profiling Hazards ..................................................................................................................................... 26 4.3 Assessing Vulnerability Overview .................................................................................................................. 27 4.3.1 Vulnerability Assessment Methodology ................................................................................................. 29 4.4 Dam Failure .................................................................................................................................................... 35 4.4.1 Identify: Dam Failure .............................................................................................................................. 35 4.4.2 Profile: Dam Failure ................................................................................................................................ 37 4.4.3 Assessing Vulnerability: Dam Failure ...................................................................................................... 39 4.5 Drought .......................................................................................................................................................... 41 4.5.1 Identify: Drought ..................................................................................................................................... 41 4.5.2 Profile: Drought ...................................................................................................................................... 42 4.5.3 Assessing Vulnerability: Drought ............................................................................................................ 46 4.6 Extreme Heat ................................................................................................................................................. 47 4.6.1 Identify: Extreme Heat ............................................................................................................................ 47 4.6.2 Profile: Extreme Heat .............................................................................................................................. 49 4.6.3 Assessing Vulnerability: Extreme Heat ................................................................................................... 49 4.7 Extreme Cold ................................................................................................................................................. 51 4.7.1 Identify: Extreme Cold ............................................................................................................................ 51 4.7.2 Profile: Extreme Cold .............................................................................................................................. 52 4.7.3 Assessing Vulnerability: Extreme Cold .................................................................................................... 52 4.8 Earthquake ..................................................................................................................................................... 54 4.8.1 Identify: Earthquake ............................................................................................................................... 54 4.8.2 Profile: Earthquake ................................................................................................................................. 58 4.8.3 Assessing Vulnerability: Earthquake ....................................................................................................... 60 LFUCG Hazard Mitigation Plan – 2019 Update 2 4.9 Flood Identification ........................................................................................................................................ 63 4.9.1 Identify: Flood ......................................................................................................................................... 63 4.9.2 Profile: Flood ........................................................................................................................................... 66 4.9.3 Assessing Vulnerability: Flood ................................................................................................................ 71 4.9.4 Repetitive Loss ........................................................................................................................................ 73 4.10 Hail ............................................................................................................................................................... 74 4.10.1 Identify: Hail .......................................................................................................................................... 74 4.10.2 Profile: Hail ............................................................................................................................................ 75 4.10.3 Assessing Vulnerability: Hail ................................................................................................................. 76 4.11 HAZMAT ....................................................................................................................................................... 78 4.11.1 Identify: HAZMAT .................................................................................................................................. 78 4.11.2 Profile: HAZMAT ................................................................................................................................... 78 4.11.3 Assessing Vulnerability: HAZMAT ......................................................................................................... 80 4.12 Karst & Sinkhole ........................................................................................................................................... 82 4.12.1 Identify: Karst & Sinkhole ..................................................................................................................... 82 4.12.2 Profile: Karst & Sinkhole ....................................................................................................................... 85 4.12.3 Assessing Vulnerability: Karst & Sinkhole ............................................................................................. 86 4.13 Landslide ...................................................................................................................................................... 88 4.13.1 Identify: Landslide ................................................................................................................................. 88 4.13.1 Profile: Landslide ................................................................................................................................... 90 4.13.2 Assessing Vulnerability: Landslide ........................................................................................................ 91 4.14 Mine Subsidence.......................................................................................................................................... 93 4.14.1 Identify: Mine Subsidence .................................................................................................................... 93 4.14.2 Profile: Mine Subsidence ...................................................................................................................... 94 4.14.3 Assessing Vulnerability: Mine Subsidence ............................................................................................ 95 4.15 Severe Storm ..............................................................................................................................................