print Font Size: small font medium font large font

E7: San Francisco Bay Shoreline Study

This project is a partnership with the California State Coastal Conservancy, the U.S. Army Corps of Engineers (Corps) and regional stakeholders. The purpose of the San Francisco Bay Shoreline Study is to: provide tidal flood protection, restore and enhance tidal marsh and related habitats, and provide recreational and public access opportunities. Initial design and construction for flood protection is planned for Economic Impact Area 11 (EIA11), which is the urban area of North San Jose and includes the community of Alviso and the San Jose-Santa Clara Regional Wastewater Facility. The project relies on federal participation from the Corps. Without federal participation, the district cannot implement additional planning, design and construction due to limited available funding.

Planning efforts for the other EIAs 1-10 are currently ongoing to assess potential tidal vulnerability of the areas behind the existing shoreline levees with three future sea level rise scenarios on a risk and uncertainty basis. The study effort will also evaluate cost/benefit for the preferred alternative of a protective shoreline levee under one percent tidal flood protection with three sea level rise conditions.

The proposed Safe, Clean Water funding provides the district’s cost share to complete the planning study for the full project area, and provides a portion of the district’s cost share toward construction of flood protection improvements in the North San Jose (EIA11) area, in and near Alviso.

For more information, visit the South San Francisco Bay Shoreline project website at


  • Provides planning and design to protect nearly 4,700 acres and more than 5,000 structures, including roads, highways, parks, airports and sewage treatment plants in all of Santa Clara County
  • Provides educational, recreational, and public access opportunities in all of Santa Clara County
  • Protects more than 1,100 structures and a population at risk of 5,500 in EIA11
  • Allows for the restoration of 2,900 acres of tidal marsh and related habitats in EIA 11
  • Provides educational, recreational, and public access opportunities

Project Status

(As of April 2017)

  • EIA 11: The Shoreline Study completed the Feasibility Phase of EIA 11 on Dec. 18, 2015 when the Chief of Engineers signed the Chief's Report. EIA 11 includes the urban area of North San Jose, the community of Alviso and the San Jose-Santa Clara Regional Wastewater Facility. The report makes a recommendation to Congress to authorize design and construction of EIA 11's recommended plan. The Chief's Report is available to download from here.

    On March 22, 2016, the Santa Clara Valley Water District Board of Directors adopted a resolution certifying the environmental impact report (EIR) for EIA 11. The conformed Board agenda memo is available to download from here. The Corps is in the process of issuing a record of decision for EIA 11's environmental impact statement (EIS).

    The Final Integrated Document consisting of the study’s Feasibility Report and combined EIR/EIS can downloaded from the following links:

    Final Interim Feasibility Study with Environmental Impact Statement / Environmental Impact Report

    · Appendix A: NEPA/CEQA Supporting Documents
    · Appendix B: Supporting Planning and Environmental 
      Documentation and Information

    · Appendix C: Economics
    · Appendix D: Hydrology and Hydraulics
    · Appendix E1: Civil Design and Cost Engineering
    · Appendix E2: Basis of Cost Estimate Memorandum
    · Appendix F: Monitoring and Adaptive Management Plan
       for Ecosystem Restoration

    · Appendix G: Geotechnical Engineering
    · Appendix H: Real Estate
    · Appendix I: Public Comments
    · Appendix J: Support Letters
    · Errata to Final EIR + CEQA Summary 020916

    The Corps has received $3 million to proceed into the Design Phase of EIA 11 in 2016 and is expected to receive another $500,000 in 2017. The Water Resources Development Act of 2016, also known as the Water Infrastructure Improvement for the Nation Act, was signed by President Obama which authorizes the EIA 11 Shoreline Project for construction.  The district and State Coastal Conservancy are working closely with the Corps to prepare plans and specifications and secure permits for constructing the first elements of EIA 11, pending continued federal funding, may be as soon as 2008.

    In July of 2016, the partnering agencies signed a design agreement to begin the design phase. Design and construction will be conducted in phases beginning with Reach 1 which is from the Alviso Marina to the Union Pacific Railroad. Reach 1 levee design began in October and is scheduled to be completed by December 2017. Concurrently the partnering agencies are coordinating with the permitting agencies to secure permits by early 2018. If permits can be secured, construction of Reach 1 will begin in 2018. The partnering agencies are planning to hold a Reach 1 design public meeting this coming summer in 2017.

  • EIAs 1-10: Ahead of working with the Corps on the next EIA or set of EIAs, the district began a Preliminary Feasibility Study for EIAs 1 -10. The preliminary study’s goal was to identify a preliminary 1-percent tidal flood risk management alignment and its related benefits and costs for the EIAs 1-10 coastal area to aid in determining the district’s next study phase or phases and to identify potential study partners. The preliminary alignment was identified in June 2015 and was used to move forward with conducting the study analysis.

    The City of Palo Alto, City of Mountain View, City of Sunnyvale, City of San Jose, NASA Moffett Field, US Fish and Wildlife Service, California State Coastal Conservancy and Mid-Peninsula Open Space Authority were all consulted in the identification of the preliminary alignment. In March 2016, the Preliminary Feasibility Study for EIAs 1-10 was completed. A report was prepared finalized after receipt of comments from all consulted agencies noted above and a final meeting was held with those agencies in March 2016.

    The study effort for EIAs 1-10 will now focus on preparing material for a workshop meeting with the Corps which is anticipated in late 2017, pending Corps receipt of federal funding.

Key Performance Indicators

  1. Provide portion of the local share of funding for planning and design phases for the former salt production ponds and Santa Clara County shoreline area

  2. Provide portion of the local share of funding toward estimated cost of initial project phase (Economic Impact Area 11)


Priority E-200

Project Information

Project Finish Through
FY 2021*
Safe Clean Water
Program Funding

$39.3 M**

(2015 Dollars)

**More financial information: 5-Year Implementation Plan, pages: 19-27
Status On Target
Location SF Bay Shoreline

*Note: These are specific to EIA11.

Project Fact Sheets

For more information: