PIMA COUNTY MULTI-JURISDICTIONAL HAZARD MITIGATION PLAN 2017 2017 Pima County Multi‐Jurisdictional Hazard Mitigation Plan 1 PIMA COUNTY MULTI-JURISDICTIONAL HAZARD MITIGATION PLAN 2017 THIS PAGE INTENTIONALLY LEFT BLANK PIMA COUNTY MULTI-JURISDICTIONAL HAZARD MITIGATION PLAN 2017 TABLE OF CONTENTS SECTION 1: INTRODUCTION ........................................................................................................................ 1 1.1 Purpose ............................................................................................................................................ 1 1.2 Background and Scope .................................................................................................................. 1 1.3 Tribal Assurance ............................................................................................................................ 2 1.4 Plan Organization .......................................................................................................................... 2 SECTION 2: COMMUNITY DESCRIPTIONS................................................................................................... 5 2.1 County Overview ............................................................................................................................ 5 2.2 Jurisdictional Overviews ............................................................................................................. 13 2.2.1 Town of Marana ...................................................................................................................... 13 2.2.2 Town of Oro Valley ................................................................................................................ 16 2.2.3 Pascua Yaqui Tribe ................................................................................................................. 18 2.2.4 Town of Sahuarita ................................................................................................................... 21 2.2.5 City of South Tucson .............................................................................................................. 25 2.2.6 City of Tucson ......................................................................................................................... 27 SECTION 3: PLANNING PROCESS .............................................................................................................. 30 3.1 Planning Process........................................................................................................................... 30 3.2 Planning Activities and Teams .................................................................................................... 30 3.3 Public and Stakeholder Involvement .......................................................................................... 35 3.4 Reference Documents and Resources ......................................................................................... 37 SECTION 4: RISK ASSESSMENT ................................................................................................................. 40 4.1 Section Changes ............................................................................................................................ 40 4.2 Hazard Identification ................................................................................................................... 40 4.3 Vulnerability Analysis Methodology .......................................................................................... 43 4.4 Hazard Risk Profiles .................................................................................................................... 45 4.4.1 Drought ................................................................................................................................... 46 4.4.2 Earthquake .............................................................................................................................. 56 4.4.3 Extreme Cold .......................................................................................................................... 64 4.4.4 Extreme Heat .......................................................................................................................... 68 4.4.5 Flood ....................................................................................................................................... 74 4.4.6 Landslide ................................................................................................................................. 92 4.4.7 Severe Wind ............................................................................................................................ 96 4.4.8 Wildfire ..................................................................................................................................100 SECTION 5: MITIGATION STRATEGY ...................................................................................................... 106 5.2 Hazard Mitigation Goal and Objectives....................................................................................106 5.3 Capability Assessment ................................................................................................................106 5.4 Mitigation Actions/Projects ........................................................................................................122 SECTION 6: PLAN MAINTENANCE PROCEDURES ................................................................................... 142 6.1 Monitoring, Evaluating and Updating ......................................................................................142 6.3 Incorporation into Other Planning Mechanisms ......................................................................143 APPENDIX A: ACRONYMS ....................................................................................................................... 148 APPENDIX B: RESOLUTIONS OF ADOPTION ........................................................................................... 150 PIMA COUNTY .......................................................................................................................................... 151 TOWN OF MARANA .................................................................................................................................. 153 TABLE OF CONTENTS Page ii PIMA COUNTY MULTI-JURISDICTIONAL HAZARD MITIGATION PLAN 2017 TOWN OF ORO VALLEY ........................................................................................................................... 154 PASCUA YAQUI TRIBE ............................................................................................................................. 156 TOWN OF SAHUARITA ............................................................................................................................. 158 CITY OF TUCSON ...................................................................................................................................... 161 APPENDIX C: PLANNING PROCESS DOCUMENTATION .......................................................................... 166 APPENDIX D: ASSESSMENT OF PREVIOUS ACTION ITEMS .................................................................... 206 APPENDIX E: PUBLIC INVOLVEMENT ..................................................................................................... 229 PIMA COUNTY .......................................................................................................................................... 229 TOWN OF MARANA .................................................................................................................................. 232 TOWN OF ORO VALLEY ........................................................................................................................... 234 PASCUA YAQUI TRIBE ............................................................................................................................. 235 TOWN OF SAHUARITA ............................................................................................................................. 237 CITY OF TUCSON ...................................................................................................................................... 238 TABLE OF CONTENTS Page iii PIMA COUNTY MULTI-JURISDICTIONAL HAZARD MITIGATION PLAN 2017 LIST OF FIGURES FIGURE 2-1: VICINITY ................................................................................................................................. 6 FIGURE 2-2: ECOREGIONS .......................................................................................................................... 8 FIGURE 2-3: COMMUNITY LOCATION AND LAND OWNERSHIP ................................................................ 9 FIGURE 2-4: GENERAL LOCATION AND TRANSPORTATION ................................................................... 11 FIGURE 2-5: TOWN OF MARANA LAND USE ............................................................................................ 15 FIGURE 2-6: TOWN OF ORO VALLEY LAND USE ..................................................................................... 17 FIGURE 2-7: PASCUA LOCATION .............................................................................................................. 20 FIGURE 2-8: TOWN OF SAHUARITA GENERAL PLAN LAND USE ............................................................ 24 FIGURE 2-9: CITY OF SOUTH TUCSON LAND OWNERSHIP AND LOCATION