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San Rafael presents three long-term sea-level rise options; study estimates up to $2 billion in costs and potential displacement
Summary
City presentation summarized a feasibility study of three adaptation alternatives (shore elevation, a tidal gate with pumps, and fill/redevelopment), estimated protection for 11,000–13,000 residents, preliminary costs up to $2 billion, and recommended near-term protective actions and further planning to limit displacement.
San Rafael city staff and consultants presented a two-year feasibility study outlining three broad strategies to reduce flood risk in the Canal neighborhood and along the city’s bayfront.
At a public forum, Patricia Fonseca Flores, architect and director of consulting firm CMG, described three alternatives analyzed by the study: (1) elevating shorelines with continuous walls and a rebuilt bay levee; (2) installing a tidal gate at the Canal mouth paired with a new pumping station; and (3) gradually acquiring and raising shoreline parcels with engineered fill and rebuilding structures. Fonseca Flores said each approach carries trade-offs on cost, time to build and community impacts. “Estimamos que cada solución podría costar hasta 2000000000 de dólares,” she told…
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