Home
Update

Sea Level Rise Regional Planning Initiatives

MTC, the Association of Bay Area Governments (ABAG) and regional partners are working to identify projects and funding for near-term sea level rise adaptation.

A waterside community along the Bay Trail in San Mateo.
Credit
Noah Berger

Plan Bay Area 2050+ is the Bay Area’s long-range plan for transportation, housing, the environment and the economy. Plan Bay Area 2050+ estimates that the cost to adapt hundreds of miles of Bay Area shoreline to protect against the harms of sea level rise will cost $96 billion.

Since only $6.5 billion in funding is anticipated through 2050, this nearly $90 billion funding gap must be addressed through regional coordination.

MTC and Bay Area agencies must work together to understand vulnerabilities, identify key projects and connect those projects to funding. These are critical steps required to safeguard communities, infrastructure and natural systems.

Sea Level Rise Adaptation Project Inventory: Plan Bay Area 2050+

See what is planned for sea level rise adaptation and where additional planning may be needed. This map includes the Resilience Project List, new to Plan Bay Area 2050+. 

View the web map.

Sea Level Rise Adaptation Funding & Investment Strategy (Investment Strategy)

The Investment Strategy is a regional initiative led by the San Francisco Bay Conservation and Development Commission (BCDC) with support from MTC and ABAG. 

The project builds on previous planning efforts, including the Sea Level Rise Adaptation Funding and Investment Framework (2021-2023) and Plan Bay Area 2050+.

The Problem

The current Shoreline Adaptation Project Map (SAPMAP) GIS database shows only part of the picture for Bay Area regional adaptation funding needs. 

Project details are incomplete and details about funding sources are not consistent. Since there is no centralized system, it is difficult to track progress and easily connect projects with available funding.

The Solution: Expected in Summer 2026

The Investment Strategy Dashboard – to be released in 2026 – will improve and link key datasets so MTC and regional partners can help connect projects to funding. 

The searchable dashboard will include more accurate SAPMAP data and improved functionality to help users find projects and easily sort and filter funding opportunities. The dashboard will also generate summaries that can be used to highlight key insights for support project sponsors, decision makers and funders. 

MTC expects to release the first version of the dashboard in summer 2026, with regular data updates to follow. 

Recent Sea Level Rise Planning Initiatives

With each of the following planning initiatives, MTC, ABAG and partners are shaping a cohesive regional response to sea level rise.

Plan Bay Area 2050+ and the Resilience Project List (2025)

Plan Bay Area 2050+ refined the work from the Sea Level Rise Adaptation Funding and Investment Framework by:

  • Conducting outreach and updating the Framework estimation to identify a $96 billion need for sea level rise adaptation projects.
  • Developing a Resilience Project List which prioritizes sea level rise investments based on urgency (when see level rise impacts are expected, also known as inundation timing) and project readiness.
  • For more information about the Resilience Project List, see the Sea Level Rise Resilience Project List Briefer. More technical information about Plan Bay Area 2050+ will be available when the final report is published in 2026.

Interagency Sea Level Rise Memorandum of Understanding (MOU) (2024)

In July 2024, Bay Area agencies signed a Memorandum of Understanding (MOU) to coordinate funding and investment efforts for sea level rise adaptation. Signers include MTC, ABAG, BCDC, the Bay Area Regional Collaborative (BARC), California State Coastal Conservancy (SCC), and the San Francisco Estuary Partnership (SFEP). The purpose of the MOU is to:

  • Align agencies on a shared approach to funding and implementation.
  • Help streamline planning efforts across agencies.
  • Establish BCDC as the lead in developing the Investment Strategy, with MTC-ABAG as key partners.

Sea Level Rise Adaptation Funding & Investment Framework (2023)

The Sea Level Rise Adaptation Funding and Investment Framework study, co-led by MTC, ABAG and BCDC, was the first to quantify the Bay Area’s sea level rise adaptation needs. The study provided a foundation for future funding initiatives, such as future Plan Bay Area cycles and the Investment Strategy. The final report:

  • Identified a $110 billion need for sea level rise adaptation projects.
  • Forecasted only $5 billion in anticipated funding through 2050.
  • Provided a roadmap for securing additional resources and aligning regional investments.

For more information, see the Framework Resources in the tabs at the bottom of this page.

Additional Recent Initiatives

MTC and ABAG’s initiatives build on work recent past efforts:

Connected Efforts from Our Partners

BCDC’s Regional Shoreline Adaptation Plan (RSAP)

The RSAP provides coordinated, actionable guidelines to help local governments create their subregional shoreline adaptation plans by 2035. 

BCDC’s Shoreline Adaptation Project Mapping Program (SAPMap)

The SAPMap is a dataset of sea level rise adaptation projects across the Bay Area, hosted on EcoAtlas,  and is  a vital tool for tracking and coordinating shoreline resilience efforts.

The San Francisco Estuary Partnership (SFEP)

SFEP helps restore wetlands and shorelines to reduce flood risk, and support climate adaptation across the Bay Area. SFEP also fosters collaboration, distributes funding and supports monitoring to scale these efforts.

Bay Area Regional Collaborative (BARC)

BARC coordinates the work of regional agencies on sea level rise adaptation through actions like the BARC Shared Work Plan and the Sea Level Rise Adaptation Interagency MOU.

Staff Contact

Kate Lyons, Resilience and Environmental Planner
Email: klyons@bayareametro.gov

Sea Level Rise Framework: Meetings & Other Resources