
Yosemite Slough Neighborhood Adaptation Plan
The City faces urgent seismic and flood risks. The Yosemite Slough neighborhood is one of the last gaps in San Francisco’s coastal adaptation plans for sea level rise. The Yosemite Slough Neighborhood Adaptation Plan (“the Plan”) aims to eliminate that disparity. The Plan will recommend strategies to protect the neighborhood – residents, local businesses, and community assets – from 3.5 to 7 feet of projected sea level rise by 2100. The Plan will supplement efforts along the City’s coast led by numerous partners, such as the Ocean Beach Climate Change Adaptation Project (SFPUC), the Waterfront Resilience Program (Port of San Francisco), and the Sea Level Rise Adaptation Strategy (California State Parks). The Plan is anticipated by the end of 2025 and is a critical path for the Yosemite Slough neighborhood to become eligible for federal adaptation funding.
What is the Yosemite Slough Neighborhood Adaptation Plan?
The Yosemite Slough Neighborhood Adaptation Plan (“the Plan”) aims to address the disparity in climate adaptation planning between Bayview Hunters Point and the rest of San Francisco’s urban waterfront. The Plan will advance environmental justice in Bayview Hunters Point through:
- Building upon existing community assets & capacity with robust public outreach and engagement;
- Developing adaptation strategies with the latest climate science, modeling, and technical analysis; and,
- Positioning Yosemite Slough for broad investment into local climate adaptation.
The Yosemite Slough Neighborhood Adaptation Plan is supported by the Adaptation Planning Grant Program at the Governor's Office of Land Use and Climate Innovation (LCI). The Adaptation Planning Grant Program is an initiative of LCI’s Integrated Climate Adaptation and Resiliency Program (ICARP). ICARP advances climate adaptation and resilience in California by coordinating investments, partnerships, and climate science to ensure people, natural systems, and the built environment are protected, prepared, and thrive in the face of climate change.
Protect the Bayview from Rising Tides
We need your help to get the Bayview ready for rising tides! Watch this brief video to learn more about the history of Yosemite Slough and the vision for a more climate resilient Bayview.
Why does this project matter?
The Yosemite Slough Neighborhood Adaptation Plan is an opportunity to accelerate:
- Racial Equity – The Plan aims to address environmental justice in the Bayview by increasing community capacity, adaptation planning, and funding related to sea level rise.
- Climate Resilience – The Plan aims to increase climate resilience in the Bayview through nature-based (and other) adaptation strategies to sea level rise and flooding, seismic, and other climate risks.
- Remediation & Restoration – The Plan aims to accelerate the remediation efforts and ecological restoration of the waterfront for renewed public access.
- Community Capacity – The Plan aims to engage youth and build neighborhood capacity in planning and designing for sea level rise in the Bayview.
- Replicability – The Plan aims to create a replicable approach for climate adaptation in industrial communities vulnerable to climate risks.
Without a Plan, climate adaptation measures would be deferred, exacerbating environmental injustice and diminishing funding opportunities for Yosemite Slough.
Who is the project team?
The project team is composed of:
- San Francisco Planning Department (Lead) – City’s lead for planning, design, and outreach
- San Francisco Estuary Institute – technical advisors on ecological restoration and nature-based strategies to climate change
- En2Action – Bayview-based partner for community outreach, engagement, and facilitation
- BAYCAT – Bayview-based partner for storytelling, media production, and youth workforce development
The project team is also supported by other City agencies as technical advisors, he Port of San Francisco, San Francisco Department of Public Health, San Francisco Public Utilities Commission, San Francisco Public Works, San Francisco Recreation and Park Department, San Francisco Municipal Transportation Agency, the Office of Resilience and Capital Planning, and the Office of Community Investment and Infrastructure.
Where is the project area?
Below is a map of the project area for the Yosemite Slough Neighborhood Adaptation Plan:
The project timeline is subject to change.
Timeline Synopsis
- Outreach and Engagement: Winter 2024 through Summer 2025
- Technical Analysis: Winter 2024 through Winter 2025
- Plan Development: Fall 2024 through Fall 2025
Winter 2024 | Spring 2024 | Summer 2024 | Fall 2024 | Winter 2025 | Spring 2025 | Summer 2025 | Fall 2025 | |
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Outreach and Engagement | ||||||||
Technical Analysis | ||||||||
Plan Development |
Project Resources
- Fact Sheet (October 2024)
- Overview Presentation
- Public Workshop #1 - Boards
Related Efforts
- Waterfront Resilience Program, Ongoing
- Environmental Justice Framework, 2023
- Safety and Resilience Element, 2022
- Islais Creek Southeast Mobility and Adaptation Strategy, 2021
- Southeast Framework, 2021
- Sea Level Rise Vulnerability and Consequences Assessment, 2020
- Sea Level Rise Action Plan, 2016
- Hazards and Climate Resilience Plan | Office of Resilience and Capital Planning
- San Francisco Climate Action Plan | San Francisco Environment Department
- Ocean Beach Climate Change Adaptation Project | San Francisco Public Utilities Commission
Other Efforts
- African American Arts & Cultural District, Mayor’s Office of Housing and Community Development
- Candlestick Point and Hunters Point Shipyard Phase 2, Office of Community Investment and Infrastructure
- Candlestick Point State Recreation Area, California Department of Parks and Recreation
- Yosemite Slough Restoration and Public Access Project, California State Parks Foundation
- Yosemite Creek Sediment Site, U.S. Environmental Protection Agency
Yosemite Slough Neighborhood Adaptation Plan
What is the Yosemite Slough Neighborhood Adaptation Plan?
The Yosemite Slough Neighborhood Adaptation Plan (YSNAP) will recommend strategies to protect Bayview residents, businesses, and infrastructure from projected sea level rise and flooding between Hunters Point and Candlestick Point (see map). Strategies will include a mix of policy, engineered, event-based and nature-based solutions tailored to the neighborhood. The plan is a critical first step to obtaining state and federal funding related to sea level rise in the neighborhood.
Why is this work needed? Why is it important?
Bayview Hunters Point suffers from a history of inequitable planning and policy decisions. The YSNAP project aims to address this history by building community awareness, creating adaptation strategies with the neighborhood, and preparing for rising tides. Bayview Hunters Point is already vulnerable to stormwater and coastal flooding, today, and at risk to significant flooding from sea level rise in the near future. The latest science projects rising tides that are nearly one foot higher than current levels by the year 2050 and between 3 and 6.6 feet higher by 2100.
Bayview Hunters Point & Yosemite Slough Wetland
What is Yosemite Slough?
Yosemite Slough (rhymes with “blue”) is a wetland located between Hunters Point and Candlestick Point. Historically, it was part of a larger watershed, originating from what is now McLaren Park. Yosemite Slough was once a biologically-rich ecosystem that supported a variety of wildlife, including many migrating birds.
How does this relate to Candlestick Point State Recreation Area?
The immediate shoreline, and areas to the north and south of Yosemite Slough, are part of the Candlestick Point State Recreation Area. Candlestick Point is owned and managed by the California Department of Parks and Recreation (“State Parks”). The adjacent residential and commercial parcels are privately owned, but under the jurisdiction of the City and County of San Francisco (“the City”). This YSNAP project is sponsored by the City, and will be coordinated with State Parks and other stakeholders.
What work has been done at Yosemite Slough?
State Parks and the California State Parks Foundation restored wetlands and built core infrastructure along the north shore of Yosemite Slough, including trails, perimeter boundary markers, and a parking lot. Literacy for Environmental Justice, a Bayview Hunters Point-based organization, helped plant thousands of native trees, shrubs, and perennials. In 2024, State Parks completed a shoreline stabilization study to inform future projects along the Candlestick Point waterfront.
How is this work related to Hunters Point?
Yosemite Slough is adjacent to the Hunters Point Naval Shipyard. The U.S. Navy is responsible for environmental remediation of the Shipyard, which is considered a Superfund site. Yosemite Slough is a separate Superfund site with a different contamination profile than the Shipyard
What is being done about contamination?
The north shore of Yosemite Slough was cleaned up as part of the wetland restoration project, led by State Parks and the California State Parks Foundation. The U.S. Environmental Protection Agency (EPA) is working with various responsible parties to design a cleanup strategy for the slough itself. The cleanup is expected to remove contaminated mud and replace it with clean materials. To maintain the restored wetland habitat and avoid recontamination, the cleanup must align with the cleanup of the Shipyard. As of Fall 2024, the EPA estimates the cleanup of Yosemite Slough to begin in 2028.
Sea Level Rise and Flooding
What is sea level rise?
As the Earth warms, glaciers and polar ice sheets melt, and ocean water expands in volume. Both factors are causing sea levels to rise. The warmer the planet, the faster the sea levels will rise. With more sea level rise, the San Francisco Bay rises. When accounting for high tides and more extreme storms, the Bay is expected to rise between 3 and 6.6 feet by 2100.
How does sea level rise interact with stormwater flooding (flooding from rain) and groundwater flooding (flooding from water emerging above the land’s surface)?
When it rains, stormwater is captured by the City’s combined sewer system, gets filtered alongside wastewater, and then let into the San Francisco Bay. When there are extreme storms, there can be more stormwater than the system can handle. This can lead to stormwater flooding in low-lying areas and combined sewer discharges. The intensity, duration, and frequency of extreme storms is expected to increase with climate change, making the City more vulnerable to this kind of flooding.
When there is sea level rise, the underground shallow water table can be pushed upwards and may lead to flooding from below. The groundwater rising can expose freshwater and underground infrastructure to saltwater, and it can mobilize underground contaminants. These risks depend on local conditions and require further study. Bayview Hunters Point is a low-lying area built on porous landfill—the risks and impacts of sea level rise, stormwater flooding, and groundwater flooding must be addressed in this project and the upcoming San Francisco Shoreline Adaptation Plan.
Adaptation Strategies
What is an adaptation plan?
A sea level rise adaptation plan is a set of strategies to address the risks and consequences of sea level rise. The goal is to limit damage to homes, communities, and assets. Due to the complexities of climate change and each neighborhood, there is no “one size fits all” approach. An adaptation plan can mix different strategies to best suit the needs of the neighborhood. The strategies can include policy, engineered, event-based, and nature-based solutions.
What does it mean to plan for “3.5 to 7 feet of projected sea level rise by 2100”?
A plan is meant to address a long timeframe (e.g., the year 2100, about 75 years from now) and to address a range of future scenarios. While there is widespread agreement that sea levels will rise over time, there is less certainty about how much. In the San Francisco Bay Area, the State of California recommends planning for 3.1 to 6.6 feet of sea level rise by 2100. The YSNAP plan is focused on 3.5 to 7 feet of projected sea level rise to be proactive, while preserving options for the future if local conditions change.
What is a nature-based adaptation strategy?
A nature-based adaptation strategy can address the risks of sea level rise while also enhancing natural ecosystems. When successful, nature-based solutions can protect and restore habitat, prevent wildlife loss, and create greener cities. In locations similar to Bayview Hunters Point, nature-based solutions can help stabilize the shoreline, reduce erosion, filter pollutants, and trap sediments.
Nearby Projects
What are Hunters Point and Candlestick Point doing about sea level rise?
The development projects at Candlestick Point and Hunters Point Shipyard are required to have setbacks along the shoreline that respond to up to 5.5 feet of sea level rise. At the Candlestick Point State Recreation Area, State Parks recently completed a shoreline stabilization study to guide future climate adaptation efforts. As an example, the study recommends a mix of strategies to enhance the shoreline, such as salt marshes or riprap. Both of these efforts will address sea level rise risks in the nearby Alice Griffith neighborhood..
Outreach Strategy Overview
The Yosemite Slough Neighborhood Adaptation Plan will identify and plan to address community needs related to sea level rise at Yosemite Slough and in Bayview Hunters Point. To achieve this, the Project Team will engage with community members and local businesses to promote the community’s participation in local planning and decision-making. SF Planning is partnering with numerous trusted Bayview-based organizations dedicated to lifting community voices, particularly those of youth, American Indian, Black, and other communities of color.
Community Ambassadors
The Community Ambassadors serve as community experts on environmental justice, climate adaptation, and the Bayview Hunters Point community. They meet quarterly to advise the Project Team on the Plan’s development and contribute in a variety of ways including:
- Providing feedback on the public outreach and engagement process, adaptation alternatives and strategies, and opportunities for community input and influence;
- Coordinating with community-led efforts and offering expertise on climate adaptation, environmental justice, racial and social equity, and public health concerns; and,
- Providing stakeholder introductions, reports, data, and other resources to the Project Team.
Ambassador Name | Organization |
---|---|
Kurt Grimes | A. Philip Randolf Institute San Francisco (APRISF) |
Sara Moncado | Association of Ramaytush Ohlone (ARO) |
Karen Pierce | Bayview Hunters Point Community Advocates |
Neal Hatten | Bayview Senior Services |
Haley Gonzales | California State Parks Foundation |
Shirletha Holmes-Boxx | Greenaction for Health and Environmental Justice |
Arieann Harrison | Marie Harrison Community Foundation, Inc. |
David Eisenberg | Micro-Tracers, Inc. |
Storytelling Video – We partnered with BAYCAT to produce a video about the Yosemite Slough Neighborhood Adaptation Plan. The video will be used as a conversation starting tool to discuss the future of climate resilience around Yosemite Slough. It is a call to action for more investments in Bayview Hunters Point that prioritizes the community’s voices.
Walking Tours – The Project Team will host in-person walking tours of the Plan area. The tours will be an opportunity for understanding on-the-ground conditions, identifying projected impacts of coastal flooding, and formulating a community vision for climate resilience in the Plan area.
Focus Groups – The Project Team will host guided discussions with small groups of community members, including youth, seniors, and low-income residents of the Bayview. The focus groups will contribute to the Plan through sharing lived experiences and community preferences and refining the adaptation strategies.
Public Workshops – The Project Team will host in-person opportunities open to all community members who want to provide feedback on the Plan. At the workshops, attendees can learn about the project, ask questions, and weigh in on interim progress. The workshops will contribute to the Plan by offering a space for broad discussions and input on developing the adaptation strategies.
Briefings and Public Events – The Project Team will coordinate with existing community-led initiatives, such as neighborhood group meetings and community events. The public events will be opportunities to provide project information, answer questions, and recruit participants for deeper engagement. Briefings offer an opportunity to share project information and gather feedback in small-group settings. Reach out to the Project Team to request a briefing.
Upcoming Events
Event Information | RSVP link / Registration |
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Public Workshop #2 Wednesday, May 13, 5:30-7:30pm SECC Alex Pitcher Pavilion 1550 Evans Avenue San Francisco, CA 94124 | Event RSVP (Free event) |
Past Events
Event Information |
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Community Ambassador Meeting Dates: July 23, 2024, Oct 9, 2024, Jan 15, 2025 |
Public Workshop #1 Wednesday, November 13, 2024 |
Walking Tours Dates: March 22 & 29, 2025 Route Map |
Danielle Ngo (Project Manager)
Senior Planner
danielle.ngo@sfgov.org
Project Team
- San Francisco Planning Department
- BAYCAT
- En2Action
- San Francisco Estuary Institute
Project Funding
The Yosemite Slough Adaptation Plan is supported by the Adaptation Planning Grant Program implemented by the Governor's Office of Land Use and Climate Innovation.