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Planning Department and Port outline the city's Sea Level Rise Action Plan and seawall priorities
Summary
Planning Department staff and the Port presented the city's Sea Level Rise Action Plan, including an asset inventory, regional coordination, a Resilient by Design competition, and a Port seawall initiative seeking voter support for an initial $350M demonstration program as part of a multi-billion-dollar need.
City planning staff and Port representatives briefed the Planning Commission on progress implementing the Sea Level Rise Action Plan and initial seawall priorities.
Diana Sokolov (Planning Department) summarized the coordinating committee's inventory and vulnerability analysis, noting the city's work to geocode exposed assets, estimate replacement costs in a high-rise scenario (transcript figure cited roughly $75 billion in exposed value at a 108-inch vulnerability threshold), and develop adaptation scenarios at asset, neighborhood and regional scales. The department described an upcoming Resilient by Design Bay Area Challenge to attract design teams and philanthropic support for adaptation strategies.
Byron Rhett (Port) discussed Port participation and the Port's seawall program. He explained options being considered (soil strengthening, seawall strengthening or building a new seawall east of the existing structure), and said the Port aims to take a $350 million bond measure to voters for an initial demonstration project (with total seawall program needs estimated in the $4'$5 billion range). Commissioners and public speakers raised concerns about liquefaction, fill, regional coordination and funding; staff said multiple funding sources and federal, state and regional collaboration will be needed.
Directives and next steps include continuing city- and region-level coordination, moving toward a vulnerability and risk assessment that will inform an adaptation plan, and seeking design and funding partnerships for demonstration projects and long-term seawall investments.
