Studies of Sea Level Rise Impacts in San Mateo County
Below are studies, reports, and maps highlighting the threats posed by sea level rise on the people, properties, infrastructure, and ecosystems in San Mateo County.
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County of San Mateo Sea Level Rise Vulnerability Assessment (2018)
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Flood and Sea Level Rise Resiliency Agency Proposal (2018)
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San Mateo County: California’s Ground Zero for Sea Level Rise
(San Mateo County 2020-2021 Civil Grand Jury Final Report)
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Caltrans District 4 Adaptation Priorities Report (2020)
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Rising Seas, Rising Inequity? Communities at Risk in the San Francisco Bay Area and Implications for Adaptation Policy (Stanford University, 2021)
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County of San Mateo South Coast Sea Level Rise Vulnerability Assessment and Adaptation Report (2022)
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Sea Level Rise Adaptation Funding and Investment Framework Final Report
(Metropolitan Transportation Commission, Association of Bay Area Governments, and the San Francisco Bay Conservation and Development Commission; 2023)
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California Coastal Cliff Erosion Viewer
(interactive map showing the severity of coastal erosion along the Pacific coastline of California)
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Our Coast Our Future
(interactive map illustrating potential flood hazards due to sea level rise and storms)

An illustration of inundation and coastal flooding due to specific sea level rise and storm surge scenarios (County of San Mateo Sea Level Rise Vulnerability Assessment, page 41)
The photos below of King tides in San Mateo County provide a valuable preview of what our coastlines may look like with just 1 to 2 feet of sea level rise in the future (photo credits: California King Tides Project).

Oyster Point, South San Francisco, January 2024

Belmont Slough, Redwood Shores, December 2024

Fitzgerald Marine Reserve, December 2022

Anza Lagoon, Burlingame, November 2024

Oyster Point, South San Francisco, November 2024

Surfers Beach, Half Moon Bay, November 2024






