Citizen Portal
Sign In

Get Full Government Meeting Transcripts, Videos, & Alerts Forever!

Board adopts Stinson Beach sea-level rise adaptation study, calls for near-term nature-based measures and coordinated governance

5610278 · August 21, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

Supervisors accepted a county-funded adaptation study that models vulnerability, estimates rising damages and lays out a phased ‘adaptation pathway’ — recommending early, nature-based protections, roadway/structure elevations and expanded monitoring while county and partners pursue governance and funding strategies.

The Marin County Board of Supervisors on Aug. 12 accepted an adaptation study for Stinson Beach that evaluates coastal erosion, storm surge, groundwater and flood risks through mid- and late-century sea-level-rise scenarios and recommends a sequenced “adaptation pathway” of nature-based and structural measures.

Study purpose and scope: Consultant James Jackson of Environmental Science Associates told the board the study refines prior countywide analysis and pilots a pathway approach for a community that faces combined risks to the beach, Bolinas Lagoon and low-lying neighborhoods. “The purpose of this study is first and foremost to protect the community development, habitat and recreational opportunities at Stinson Beach,” Jackson said.

Key findings: The study models multiple hazards — monthly high tides, 100-year storms and shoreline/dune erosion — across a range of sea-level-rise amounts. It estimates storm-related damages rising from…

Already have an account? Log in

Subscribe to keep reading

Unlock the rest of this article — and every article on Citizen Portal.

  • Unlimited articles
  • AI-powered breakdowns of topics, speakers, decisions, and budgets
  • Instant alerts when your location has a new meeting
  • Follow topics and more locations
  • 1,000 AI Insights / month, plus AI Chat
30-day money-back on paid plans