SEAWALL EARTHQUAKE SAFETY & DISASTER PREVENTION PROGRAM Port - PowerPoint PPT Presentation

SEAWALL EARTHQUAKE SAFETY & DISASTER PREVENTION PROGRAM Port Jurisdiction Historic shoreline acor Photo | Michael M Presentation to the Capital Planning Committee March 5, 2018

SEAWALL EARTHQUAKE SAFETY PROGRAM ESTIMATED $2-5 BILLION TOTAL PROGRAM COST Per the 10-Year Capital Plan, t he City and County of San Francisco is proposing a $350M General Obligation Bond for the November 2018 ballot to fund improvements to the Embarcadero Seawall that will reduce the significan t l ife safety seismic risk , improve current flood protection and provide a stable foundation for future adaptation to sea level rise . 2

FM3 PUBLIC OPINION RESEARCH Nearly ¾ of voters say they would vote “yes” on a bond measure to fund improvements to the Seawall. 37% 30% 7 5 % 8% San Francisco Seawall and Waterfront Protection Measure To protect San Francisco’s waterfront, BART and Muni 2% tunnels, buildings, historic piers, and roads from earthquakes, flooding and rising sea levels by: 5% repairing and upgrading the City’s 100 -year old • 14% Seawall, strengthening the Embarcadero, and • • protecting critical transit infrastructure and utilities that provide water and power to residents and businesses, shall the City of San Francisco issue $350 / $500 million in bonds, subject to independent citizen oversight and regular audits, with no increase in tax rates? 955 telephone/internet interviews with likely voters; English, 3 Spanish, Chinese language speakers; January 11-21, 2018

COMPLETED VULNERABILITY ASSESSMENTS & SCOPING San Francisco establishes aggressive agenda for further sea City sea level rise Army of Corps of level rise analysis, modeling identifies Engineering issues adaptation planning, near-term flood risk, federal interest and implementation. and maps rising tide determination under and storm surge its flood hazard Mayor’s Sea Level scenarios for years mitigation authority. Rise Action Plan 2050 and 2100. Federal Interest Sea Level Rise Determination Inundation Analysis November 2017 July 2016 April 2014 June 2012 March 2016 November 2016 Seawall Earthquake Port’s Seawall Planning, Vulnerability Study Engineering, and Construction Project Seawall is found vulnerable to seismic Lifelines Council hazards. posing risk to the City’s critical Commences Planning Interdependency Study emergency response and lifeline Port launches Seawall Seawall identified as one of the assets. Earthquake Safety and City’s Top 5 most critical lifeline Disaster Prevention safety assets. Seismic and sea Program. level rise vulnerabilities identified for further multi- hazard risk assessment to inform investment prioritization. 4

SEAWALL EARTHQUAKE SAFETY & DISASTER PREVENTION PROGRAM GOALS 1 2 3 ACT QUICKLY REDUCE IMPROVE TO IMPROVE EARTHQUAKE FLOOD DISASTER DAMAGE RESILIENCE PREPAREDNESS 4 5 6 ENHANCE THE PRESERVE ENGAGE THE CITY HISTORIC COMMUNITY & THE BAY RESOURCES Photo | Michael Macor 5

THE SEAWALL CREATED 500+ ACRES OF NEW LAND 6

WHY PRIORITIZE THE EMBARCADERO SEAWALL NOW? 7 7

ELIGIBLE PROGRAM COSTS AND PROJECTS Address the most significant seismic and near-term flood risks to the most critical assets. • Program Development, Planning & Pre-Design Project • Design & Engineering Implementation • Construction Management • Ground Strengthening & Liquefaction Remediation • Bulkhead wall & wharf retrofits Earthquake • Bulkhead wall & wharf replacements Improvements • Critical facility retrofits & replacements • Utility replacements, relocations & bypasses • Flood walls and barriers Flood • Changes to surface grading Protection • Flood proofing Measures • Enhanced foundation for future adaptation • Public access enhancements Mitigation & • Transportation/mobility improvements Enhancement • Environmental benefits Estimated design/construction costs for seismic and near term 8 flood control improvements = $575 million per mile

PHASE I DETAILED SCHEDULE 2025 2026 2018 2019 2020 2021 2022 2023 2024 Program Development/ Data Collection & Field Investigations Planning, $14m Multi-Hazard Risk Assessment Alternatives Development & Analysis Selection of Phase 1 Projects Development of Overall Program Preliminary Design & Design & Engineering to 35% Environmental NEPA & CEQA Approvals, Phase I Solicitation of Contractors (DBB, DB, CMGC) Projects, $25m Life Safety and Pilot Critical life safety projects Projects, $75m Final Design & Engineering Final Design & Construction & CM Construction, Phase I Closeout Projects, $385m Permits Feasibility Study USACE CAP 103 (Near Term Flood Protection Project Partnership Agreement Project), $6m Design & Construction 9 Program Management Stakeholder Engagement 9

PROGRAM BUDGET AND SCHEDULE Estimated Expenditures $120 $600 CUMULATIVE EXPENDITURES ($M) ANNUAL EXPENDITURE ($M) $100 $500 $80 PLAC E HO LDE R $400 NE E D APPRO V AL $60 $300 $40 $200 $20 $100 $- $- 2018 2019 2020 2021 2022 2023 2024 2025 2026 Planning Preliminary Design & Environmental Approvals USACE CAP 103 (35% Local Match) Life Safety and Pilot Projects 10 10 Phase 1 Final Design & Construction Cumulative Total

CRITICAL RISK: EARTHQUAKE SAFETY 72% PROBABILITY for a quake of at least 6.7 or GREATER magnitude to occur between NOW and 2032 11

Current Condition CRITICAL RISK: CURRENT AND FUTURE FLOODING • Seawall supports the Embarcadero and provides flood protection • Existing Embarcadero closures during king tide SLR Risk • Muni and BART tunnels subject to flood risk • CCSF sea level rise guidance: 12”-24” by 2050 36”-66” by 2100 12

SAMPLE EVALUATION CRITERIA 13

EARTHQUAKE RETROFIT CONCEPTS 14

POTENTIAL SEA LEVEL RISE SOLUTIONS RAISE/EXPAND LANDSCAPE EDGE 15

Desired Program Funding by Source City GO Bond Program (residential and commercial taxpayers) 15% 15% 25% 25% Federal (Water Resources, Transportation) 25% 25% State (Cap and Trade, State Share of Tax Increment) 35% 35% Private (waterfront development projects and businesses) Photo | Michael Macor 16

GENERAL TIMELINE Capital Planning Committee (informational) – March 5, 2018 Port Commission – April 10, 2018 Capital Planning Committee (approval) – April 16, 2018 Board of Supervisors – May 2018 CCSF General Election – November 6, 2018 QUESTIONS? acor Photo | Michael M 17