Sea Level Rise — California's Ground Zero
active• sanmateo
San Mateo County has been formally identified as the most vulnerable county in California to sea level rise — a designation that carries enormous long-term policy and financial stakes. The county's bayfront communities, including Redwood Shores, East Palo Alto, Foster City, and parts of the coastline from Half Moon Bay to Pescadero, face significant risks to roads, housing, wastewater treatment plants, and electrical substations from rising seas and storm surge. The county created a dedicated agency — OneShoreline (the San Mateo County Flood and Sea Level Rise Resiliency District) — to coordinate across jurisdictions, and is contributing $875,000 annually plus Measure K grants to projects including a levee project raising more than 3 miles of barriers surrounding Redwood Shores to meet FEMA requirements. But the scale of infrastructure investment required vastly exceeds current funding, and federal rollbacks of climate and flood programs are creating new gaps precisely when they're needed most.
Related cause: Climate
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