Update on County’s Sea Level Rise initiatives and final report from AECOM study (July 14, 2026)

Marin County is strengthening its sea level rise planning through a new Climate Office and the completion of a countywide AECOM study, which assessed governance options, funding needs, and opportunities for multi‑jurisdictional collaboration. With more than 110 miles of shoreline, Marin faces significant risks from flooding, storm surge, and king tides. Recent assessments highlight the need for coordinated action across cities, towns, special districts, and regional agencies. Current efforts include leading multijurisdictional Regional Shoreline Adaptation Plans, advancing collaborative projects with the Marin Community Foundation and Coastal Quest, and developing a countywide strategy to support shoreline resilience and future adaptation investments.