City of Los Angeles 2017 Local Hazard Mitigation Plan Eric Garcetti, Mayor Aram Sahakian, General Manager Emergency Management Department EMERGE Ill MANAGEM August 2017 DEPART City of Los Angeles 2017 Local Hazard Mitigation Plan August 2017 PREPARED FOR PREPARED BY City of Los Angeles Emergency Management Department Tetra Tech 200 N. Spring Street 1999 Harrison Street Phone: 510.302.6300 Room 1533 Suite 500 Fax: 510.433.0830 Los Angeles, California 90012 Oakland, CA 94612 tetratech.com Tetra Tech Project # 103S4869 \\IWRS065FS1\Data\Active\0_HazMitigation\103s4869.emi_LACity_HMP\2017-08_ApprovedFinal\2017_LA_HMP_Final_2017-08-23.docx City of Los Angeles 2017 Local Hazard Mitigation Plan Contents CONTENTS Executive Summary ............................................................................................................ xxii PART 1— PLANNING PROCESS AND COMMUNITY PROFILE 1. Introduction to Hazard Mitigation Planning ................................................................... 1-1 1.1 Why Prepare This Plan? ............................................................................................................................. 1-1 1.1.1 The Big Picture ................................................................................................................................. 1-1 1.1.2 Purposes for Planning ....................................................................................................................... 1-1 1.2 Who Will Benefit From This Plan? ........................................................................................................... 1-2 1.3 Contents of This Plan ................................................................................................................................. 1-2 2. Plan Update—What Has Changed ................................................................................... 2-1 2.1 The Previous Plan ...................................................................................................................................... 2-1 2.2 Why Update? ............................................................................................................................................. 2-2 2.2.1 Federal Eligibility ............................................................................................................................. 2-2 2.2.2 Changes in Development .................................................................................................................. 2-2 2.3 The Updated Plan—What Is Different? ..................................................................................................... 2-2 3. Plan Update Approach ..................................................................................................... 3-1 3.1 Grant Funding ............................................................................................................................................ 3-1 3.2 Formation of the Planning Team ............................................................................................................... 3-1 3.3 Defining the Planning Area........................................................................................................................ 3-1 3.4 The Steering Committee ............................................................................................................................ 3-3 3.5 Coordination with Other Agencies ............................................................................................................ 3-3 3.6 Review of Existing Programs .................................................................................................................... 3-5 3.7 Public Involvement .................................................................................................................................... 3-5 3.7.1 Strategy ............................................................................................................................................. 3-5 3.7.2 Public Involvement Results ............................................................................................................ 3-10 3.8 Plan Development Chronology/Milestones ............................................................................................. 3-11 4. City of Los Angeles Profile .............................................................................................. 4-1 4.1 Geographic Overview ................................................................................................................................ 4-1 4.2 Historical Overview ................................................................................................................................... 4-1 4.3 Major Past Hazard Events .......................................................................................................................... 4-2 4.4 Physical Setting .......................................................................................................................................... 4-3 4.4.1 Topography ...................................................................................................................................... 4-3 4.4.2 Soils and Geology ............................................................................................................................ 4-3 4.4.3 Climate ............................................................................................................................................. 4-4 4.5 Development Profile .................................................................................................................................. 4-6 4.5.1 Land Use ........................................................................................................................................... 4-6 4.5.2 Critical Facilities and Infrastructure ................................................................................................. 4-7 4.5.3 Future Trends in Development ....................................................................................................... 4-22 4.6 community Demographic profile ............................................................................................................. 4-23 4.6.1 Population Characteristics .............................................................................................................. 4-23 4.6.2 Age Distribution ............................................................................................................................. 4-25 4.6.3 Race, Ethnicity and Language ........................................................................................................ 4-26 4.6.4 Individuals with Disabilities or Access and Functional Needs ...................................................... 4-26 TETRA TECH v City of Los Angeles 2017 Local Hazard Mitigation Plan Contents 4.7 Economy .................................................................................................................................................. 4-27 4.7.1 Income ............................................................................................................................................ 4-27 4.7.2 Industry, Businesses and Institutions ............................................................................................. 4-27 4.7.3 Employment Trends and Occupations ............................................................................................ 4-29 4.8 Vulnerable Communities ......................................................................................................................... 4-30 4.8.1 Westlake Community ..................................................................................................................... 4-32 4.8.2 Historic South-Central Community ................................................................................................ 4-32 4.8.3 South Park Community .................................................................................................................. 4-32 4.8.4 Central-Alameda Community ........................................................................................................ 4-32 4.8.5 Pico Union Community .................................................................................................................. 4-33 4.8.6 Florence Community ...................................................................................................................... 4-33 4.8.7 Watts Community ........................................................................................................................... 4-33 4.8.8 Boyle Heights Community ............................................................................................................. 4-33 4.8.9 Koreatown Community .................................................................................................................. 4-33 4.9 Laws and Ordinances ............................................................................................................................... 4-33 4.9.1 Federal ............................................................................................................................................ 4-34 4.9.2 State ................................................................................................................................................ 4-41 4.9.3 City of Los Angeles .......................................................................................................................