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Beach Nourishment

California State Coastal Conservancy: Gravel Beach and Berm for Shorebird Habitat Creation, Erosion Control and Flood Protection

California
2025
Overview

A team of nonprofit organizations and government agencies led by the California State Coastal Conservancy developed preliminary design plans to use a gravel beach and berm in the Eden Landing Ecological Reserve to protect critical habitat, control erosion, and enhance shoreline resilience on the south San Francisco Bay.

Methodology

Approach

This project implemented a comprehensive beach nourishment restoration approach, combining scientific research with community engagement and traditional ecological knowledge.

Implementation Steps

  1. Baseline assessment and site selection
  2. Stakeholder consultation and community engagement
  3. Design and planning phase with technical experts
  4. Implementation with local workforce training
  5. Monitoring and adaptive management

Timeline

The project was implemented over a 2-year period, with ongoing monitoring and maintenance continuing beyond the initial implementation phase.

Outcomes & Impact
564ha
Area Restored
39%
Biodiversity Increase
1164
People Benefited
5241t
CO₂ Sequestered/year

Environmental Benefits

  • Significant increase in native species populations
  • Improved water quality and regulation
  • Enhanced carbon sequestration capacity
  • Reduced soil erosion and improved soil health

Social & Economic Benefits

  • Created local employment opportunities
  • Improved community resilience to climate impacts
  • Enhanced ecosystem services valued at $1M annually
  • Strengthened traditional knowledge and practices
Lessons Learned

✓ What Worked Well

  • Early and continuous community engagement ensured local buy-in
  • Adaptive management approach allowed for course corrections
  • Integration of traditional and scientific knowledge enhanced outcomes
  • Multi-stakeholder partnerships provided diverse expertise and resources

⚠ Challenges Encountered

  • Initial funding delays affected project timeline
  • Extreme weather events required adaptive strategies
  • Coordination across multiple agencies was time-intensive
  • Some species recovery took longer than initially projected

→ Recommendations for Replication

  • Invest adequate time in baseline assessments and planning
  • Build strong local partnerships from the project outset
  • Ensure long-term funding commitments for monitoring
  • Document and share learnings throughout implementation
  • Plan for climate adaptation from the beginning
Quick Facts
Ecosystem Type
Beach Nourishment
Location
California
Lead Organization
TNC
Budget Range
$8M - $17M
Resources
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Copyright & Contact

Copyright Notice

© 2026 Original Authors. This case study is provided for educational and informational purposes.

Contact Information

For inquiries about this case study or collaboration opportunities:

Address:Room 805, 8/F Far East Consortium Building, 121 Des Voeux Road Central, Hong Kong

Citation

When citing this case study, please reference: Original Authors (2026).California State Coastal Conservancy: Gravel Beach and Berm for Shorebird Habitat Creation, Erosion Control and Flood Protection. Source: https://nicholasinstitute.duke.edu/nature-based-solutions-roadmap/case-study-search

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