Areas Vulnerable to Sea Level Rise in San Francisco Bay

Sea level rise is a concern for many Bay Area residents, community leaders, and resource managers. BCDC is taking multiple steps to address the threat of rising sea level and provide the latest data and tools to better understand sea level rise vulnerability around the Bay.

BCDC’s Adapting to Rising Tides (ART) Program both leads and supports multi-sector, cross-jurisdictional projects that build local and regional capacity to understand the risks from sea level rise and adapt to these challenges. One of these projects is partnering with the Metropolitan Transportation Commission (MTC) to lead the development of regional shoreline mapping and analysis products to support locally relevant and downscaled sea level rise assessment and adaptation.

Through partnering with coastal engineers, flood managers, and technical experts the ART Program is developing locally specific, actionable sea level rise mapping and modeling products to underpin the assessment of vulnerability and consequences in the region. Known as the ART Bay Area Sea Level Rise Analysis and Mapping, this project produces robust and accurate maps that leverage the best available data and information to provide accurate, detailed maps for planning purposes.

The ART Program, in partnership with MTC, is currently producing maps for all nine counties. Maps and data are made available on the ART Portfolio Website as they are completed. More information and currently available maps are at:

The California Ocean Protection Council in partnership with the California Ocean Science Trust, recently released a new science report to guide updating the State's Sea-Level Rise Guidance, which will help state and local agencies incorporate sea-level rise into their decision-making. The Science Guidance is available on the Ocean Protection Council’s website: here.

A number of other online tools also exist that can provide a more regional scale analysis regarding the risks associated with rising sea level. Below are a few of these tools:

NOAA Office for Coastal Management Sea Level Rise Viewer

Web mapping tool visualizes community-level impacts from coastal flooding or sea level rise (up to 6 feet above average high tides). Photo simulations of how future flooding might impact local landmarks are also provided, as well as data related to water depth, connectivity, flood frequency, socio-economic vulnerability, wetland loss and migration, and mapping confidence.

Our Coast Our Future (OCOF)

Is a collaborative, user-driven project focused on providing coastal California resource managers and land use planners locally relevant, online maps and tools to help understand, visualize, and anticipate vulnerabilities to sea level rise and storms.

The Climate Central – Surging Seas

Tool allows users to see maps of areas below different amounts of sea level rise and flooding, down to neighborhood scale, matched with area timelines of risk. The tool also provides statistics of population, homes and land affected by city, county and state, plus links to factsheets, data downloads, action plans, embeddable widgets and more.