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D3: Sediment Reuse to Support Shoreline Restoration*

About This Project

This project reuses local sediment removed through Valley Water’s Stream Maintenance Program, capital projects and other local sources to create and restore tidal marsh habitat. Sediment may be reused to support the South Bay Salt Pond Restoration project or other environmental enhancement and restoration projects. Valley Water removes sediment from streams to maintain their capacity to carry floodwaters. To secure environmentally appropriate reuse sites, this project continues the existing partnership with the U.S. Fish and Wildlife Service (FWS) and explores partnerships with others. This project also funds site improvements necessary to facilitate sediment delivery to the reuse sites.

Beneficial reuse of sediment has become a key component in tidal marsh restoration around the Bay. As sea levels rise, natural sedimentation and vegetation rates cannot keep up and tidal zones are in danger of being submerged, erasing environmental gains from restoration work. By delivering clean sediment from local creeks that would have naturally flowed into the San Francisco Bay, this project accelerates natural marsh-building processes and helps to keep up with sea-level rise. Activities necessary for sediment reuse may include testing, transport, cover material, and site improvements required for access.

*This project was voter approved as part of the Safe, Clean Water and Natural Flood Protection Program.

Sediment Reused Build along Maintenance Road at Pond A8
On Target
Start FY 2022 / Finish FY 2036
Safe, Clean Water Fund ($4.1 million)
News and UpdatesNews and Updates
Reports and DocumentsReports and Documents
Environmental and Community BenefitsEnvironmental and Community Benefits
History and BackgroundHistory and Background
News & Updates

See Environmental & Community Benefits section for complete description of Key Performance Indicators (KPIs).

KPI #1: (agreements to reuse sediment)

  • Valley Water and the United States Fish and Wildlife entered into a memorandum of agreement in May 2019 to facilitate sediment disposal form local creeks along the South Bay Salt Ponds. This agreement is in effect until December 2023.

KPI #2: (sediment reuse activities)

  • In Q1 of FY23 (July 1, 2022 – September 30, 2022), all sediment removal projects were tested in the hopes that the soil could be utilized at Pond A8. However, due to the current sediment testing requirements, all tested soil failed to meet the criteria for re-use, as foundation or cover.


October 2022

For more information:

Reports & Documents

No current documents. 

Environmental & Community Benefits

FY22-36 Key Performance Indicators for the Safe, Clean Water Program

  1. Maintain partnership agreements to reuse sediment to improve the success of salt pond and tidal marsh restoration projects and activities.

  2. Provide up to $4 million per 15-year period to support activities necessary for sediment reuse.


  • Accelerates progress of an important tidal wetland restoration projects

  • Reduces disposal costs for sediment that has been removed from local channels 

  • Reduces disposal of clean fill into local landfills

  • Addresses climate change

Geographic Area of Benefit



    History & Background

    About the Safe, Clean Water and Natural Flood Protection Program

    In November 2020, voters in Santa Clara County overwhelmingly approved Measure S, a renewal of Valley Water’s Safe, Clean Water and Natural Flood Protection Program.

    The program was first passed by voters in 2000 as the Clean, Safe Creeks and Natural Flood Protection Plan, then again in 2012 as the Safe, Clean Water and Natural Flood Protection Program. The renewal of the Safe, Clean Water Program will continue to provide approximately $47 million annually for local projects that deliver safe, clean water, natural flood protection, and environmental stewardship to all the communities we serve in Santa Clara County.

    While evaluating ways to improve the 2012 program, Valley Water gathered feedback from more than 21,000 community members. That helped Valley Water create the six priorities for the renewed Safe, Clean Water Program, which are:

    Priority A: Ensure a Safe, Reliable Water Supply

    Priority B: Reduce Toxins, Hazards and Contaminants in our Waterways

    Priority C: Protect our Water Supply and Dams from Earthquakes and Natural Disasters

    Priority D: Restore Wildlife Habitat and Provide Open Space

    Priority E: Provide Flood Protection to Homes, Businesses, Schools, Streets and Highways

    Priority F: Support Public Health and Public Safety for Our Community

    Each year, Valley Water prepares a report providing a progress update for each of these program priorities, along with fiscal year accomplishments.

    To ensure transparency and accountability to the voters, the ballot measure also created an Independent Monitoring Committee, appointed by the Santa Clara Valley Water District Board of Directors. The Independent Monitoring Committee annually reviews the program’s progress to ensure the outcomes are achieved in a cost-efficient manner and reports its findings to the Board. Additionally, the IMC also reviews each proposed 5-year implementation plan prior to its submittal for Board approval.

    In addition, the program requires three independent audits.

    View the Safe, Clean Water Program’s annual reports, annual IMC audit reports, and independent audits, including a staff response, on the Valley Water website.