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South Shoreline Phase 1 construction photos
SHORELINE PROJECT UPDATE: Construction of Reaches 1-3 levee continues and has come a long way since construction started in early 2022. Excavation for Reach 2/3 is nearing completion and most of Reach 1 levee backfill is at target elevation above 15.2 feet. Major earthwork is expected to be completed this calendar year, with remaining work to be completed in Summer 2025. ABOUT THE PROJECT: The South San Francisco Bay Shoreline Project is a multi-agency effort between the USACE San Francisco District, Valley Water and the State Coastal Conservancy to reduce coastal flood risk for residents, commuters and businesses from the Alviso area of San Jose to the city of Palo Alto. The project will also restore and enhance 2,900 acres of tidal marsh and related habitat that was lost due to former salt pond production activities and improve recreational and public access along the bay shoreline.
South Shoreline Phase 1 construction photos
San Francisco District Chief of Engineering and Construction Robin Inaba talks to a project manager (left)_at the San Francisco South Shoreline Phase I construction project near Alviso, California, June 13, 2024.
South Shoreline Phase 1 construction photos
SHORELINE PROJECT UPDATE: Construction of Reaches 1-3 levee continues and has come a long way since construction started in early 2022. Excavation for Reach 2/3 is nearing completion and most of Reach 1 levee backfill is at target elevation above 15.2 feet. Major earthwork is expected to be completed this calendar year, with remaining work to be completed in Summer 2025. ABOUT THE PROJECT: The South San Francisco Bay Shoreline Project is a multi-agency effort between the USACE San Francisco District, Valley Water and the State Coastal Conservancy to reduce coastal flood risk for residents, commuters and businesses from the Alviso area of San Jose to the city of Palo Alto. The project will also restore and enhance 2,900 acres of tidal marsh and related habitat that was lost due to former salt pond production activities and improve recreational and public access along the bay shoreline.
South Shoreline Phase 1 construction photos
SHORELINE PROJECT UPDATE: Construction of Reaches 1-3 levee continues and has come a long way since construction started in early 2022. Excavation for Reach 2/3 is nearing completion and most of Reach 1 levee backfill is at target elevation above 15.2 feet. Major earthwork is expected to be completed this calendar year, with remaining work to be completed in Summer 2025. ABOUT THE PROJECT: The South San Francisco Bay Shoreline Project is a multi-agency effort between the USACE San Francisco District, Valley Water and the State Coastal Conservancy to reduce coastal flood risk for residents, commuters and businesses from the Alviso area of San Jose to the city of Palo Alto. The project will also restore and enhance 2,900 acres of tidal marsh and related habitat that was lost due to former salt pond production activities and improve recreational and public access along the bay shoreline.
South Shoreline Phase 1 construction photos
SHORELINE PROJECT UPDATE: Construction of Reaches 1-3 levee continues and has come a long way since construction started in early 2022. Excavation for Reach 2/3 is nearing completion and most of Reach 1 levee backfill is at target elevation above 15.2 feet. Major earthwork is expected to be completed this calendar year, with remaining work to be completed in Summer 2025. ABOUT THE PROJECT: The South San Francisco Bay Shoreline Project is a multi-agency effort between the USACE San Francisco District, Valley Water and the State Coastal Conservancy to reduce coastal flood risk for residents, commuters and businesses from the Alviso area of San Jose to the city of Palo Alto. The project will also restore and enhance 2,900 acres of tidal marsh and related habitat that was lost due to former salt pond production activities and improve recreational and public access along the bay shoreline.
Construction begins on South San Francisco Bay Shoreline Phase I
Yay, we're moving on South San Francisco Bay Shoreline Phase I project as construction recently started on Reaches 1-3. After all of the rain, the site has finally dried out enough for the crews to clear and grub the site, install barriers and complete the prep work for removing the boardwalk. Maloney Odin Joint Venture was awarded this contract that consists of constructing approximately 1.6 miles of flood risk management levees with approximately 600,000 cubic yards of fill. Phase I is a multi-agency partnership between USACE, the U.S. Fish and Wildlife Service, Valley Water, and the State Coastal Conservancy. The complete project will construct approximately four miles of levees to reduce the risk of tidal flooding to the north San José area between the Alviso Slough/Guadalupe River and Coyote Creek, which includes 2,500 residents of the Alviso community, 3,000 commuters who work and travel through the area, the San José-Santa Clara Regional Wastewater Facility, and the Silicon Valley Advanced Water Purification Center. The project will also restore and enhance 2,900 acres of tidal marsh and related habitat lost due to former salt production activities. Additionally, it will provide improved recreational opportunities and public access along the bay shoreline.
Construction begins on South San Francisco Bay Shoreline Phase I
Yay, we're moving on South San Francisco Bay Shoreline Phase I project as construction recently started on Reaches 1-3. After all of the rain, the site has finally dried out enough for the crews to clear and grub the site, install barriers and complete the prep work for removing the boardwalk. Maloney Odin Joint Venture was awarded this contract that consists of constructing approximately 1.6 miles of flood risk management levees with approximately 600,000 cubic yards of fill. Phase I is a multi-agency partnership between USACE, the U.S. Fish and Wildlife Service, Valley Water, and the State Coastal Conservancy. The complete project will construct approximately four miles of levees to reduce the risk of tidal flooding to the north San José area between the Alviso Slough/Guadalupe River and Coyote Creek, which includes 2,500 residents of the Alviso community, 3,000 commuters who work and travel through the area, the San José-Santa Clara Regional Wastewater Facility, and the Silicon Valley Advanced Water Purification Center. The project will also restore and enhance 2,900 acres of tidal marsh and related habitat lost due to former salt production activities. Additionally, it will provide improved recreational opportunities and public access along the bay shoreline.
South San Francisco Bay Shoreline Phase I Project
The is a multi-purpose Flood Risk Management, Ecosystem Restoration and Recreation Project in San Jose, CA. The project manages risk for 5,500 residents and 1,100 structures, restores 2,900 acres of tidal wetlands, and improves recreation in the area by providing key connections to the iconic San Francisco Bay Trail. USACE is currently building the first portion of the project’s 4-mile coastal flood protection levee, known as Reaches 1-3, which begins at the Alviso Marina County Park and ends at the Artesian Slough.
South Shoreline Phase 1 construction photos
SHORELINE PROJECT UPDATE: Construction of Reaches 1-3 levee continues and has come a long way since construction started in early 2022. Excavation for Reach 2/3 is nearing completion and most of Reach 1 levee backfill is at target elevation above 15.2 feet. Major earthwork is expected to be completed this calendar year, with remaining work to be completed in Summer 2025. ABOUT THE PROJECT: The South San Francisco Bay Shoreline Project is a multi-agency effort between the USACE San Francisco District, Valley Water and the State Coastal Conservancy to reduce coastal flood risk for residents, commuters and businesses from the Alviso area of San Jose to the city of Palo Alto. The project will also restore and enhance 2,900 acres of tidal marsh and related habitat that was lost due to former salt pond production activities and improve recreational and public access along the bay shoreline.
South San Francisco Bay Shoreline Phase I Project
The is a multi-purpose Flood Risk Management, Ecosystem Restoration and Recreation Project in San Jose, CA. The project manages risk for 5,500 residents and 1,100 structures, restores 2,900 acres of tidal wetlands, and improves recreation in the area by providing key connections to the iconic San Francisco Bay Trail. USACE is currently building the first portion of the project’s 4-mile coastal flood protection levee, known as Reaches 1-3, which begins at the Alviso Marina County Park and ends at the Artesian Slough.
South San Francisco Bay Shoreline Phase I Project
The is a multi-purpose Flood Risk Management, Ecosystem Restoration and Recreation Project in San Jose, CA. The project manages risk for 5,500 residents and 1,100 structures, restores 2,900 acres of tidal wetlands, and improves recreation in the area by providing key connections to the iconic San Francisco Bay Trail. USACE is currently building the first portion of the project’s 4-mile coastal flood protection levee, known as Reaches 1-3, which begins at the Alviso Marina County Park and ends at the Artesian Slough.
Construction begins on South San Francisco Bay Shoreline Phase I
Yay, we're moving on South San Francisco Bay Shoreline Phase I project as construction recently started on Reaches 1-3. After all of the rain, the site has finally dried out enough for the crews to clear and grub the site, install barriers and complete the prep work for removing the boardwalk. Maloney Odin Joint Venture was awarded this contract that consists of constructing approximately 1.6 miles of flood risk management levees with approximately 600,000 cubic yards of fill. Phase I is a multi-agency partnership between USACE, the U.S. Fish and Wildlife Service, Valley Water, and the State Coastal Conservancy. The complete project will construct approximately four miles of levees to reduce the risk of tidal flooding to the north San José area between the Alviso Slough/Guadalupe River and Coyote Creek, which includes 2,500 residents of the Alviso community, 3,000 commuters who work and travel through the area, the San José-Santa Clara Regional Wastewater Facility, and the Silicon Valley Advanced Water Purification Center. The project will also restore and enhance 2,900 acres of tidal marsh and related habitat lost due to former salt production activities. Additionally, it will provide improved recreational opportunities and public access along the bay shoreline.
Construction begins on South San Francisco Bay Shoreline Phase I
Yay, we're moving on South San Francisco Bay Shoreline Phase I project as construction recently started on Reaches 1-3. After all of the rain, the site has finally dried out enough for the crews to clear and grub the site, install barriers and complete the prep work for removing the boardwalk. Maloney Odin Joint Venture was awarded this contract that consists of constructing approximately 1.6 miles of flood risk management levees with approximately 600,000 cubic yards of fill. Phase I is a multi-agency partnership between USACE, the U.S. Fish and Wildlife Service, Valley Water, and the State Coastal Conservancy. The complete project will construct approximately four miles of levees to reduce the risk of tidal flooding to the north San José area between the Alviso Slough/Guadalupe River and Coyote Creek, which includes 2,500 residents of the Alviso community, 3,000 commuters who work and travel through the area, the San José-Santa Clara Regional Wastewater Facility, and the Silicon Valley Advanced Water Purification Center. The project will also restore and enhance 2,900 acres of tidal marsh and related habitat lost due to former salt production activities. Additionally, it will provide improved recreational opportunities and public access along the bay shoreline.

Announcements

South San Francisco Bay Shoreline Phase I Construction

SOUTH SAN FRANCISCO BAY SHORELINE PHASE I PROJECT
CONSTRUCTION GENERAL SUPPLEMENTAL

PROJECT LOCATION AND DESCRIPTION

The South San Francisco Bay Shoreline Phase I project is a multi-purpose Flood Risk Management, Ecosystem Restoration and Recreation Project in San Jose, CA.  The project manages increasing coastal flood risk, restores 2,900 acres of tidal wetlands, and improves recreation in the area by providing new trails and key connections to existing trails.

 

TOTAL FUNDING

 

TOTAL PROJECT COST*

$545,003,000

 

 

FEDERAL COST*

$236,061,590

NON-FEDERAL COST*

$308,941,410

 

 

TOTAL FEDERAL COST THROUGH FY 2026**

              $218,968,713

FY 2026 BUDGET

              N/A     

FED COST TO COMPLETE*

$17,092,877

*per 2021 cost estimate, which will be updated in 2026.
** includes $3,500,000 GI funds for initial PED, $124,300 BBA 18 allocation, and $91,168,713 DRSAA 23 allocation.

FY 25 ACCOMPLISHMENTS

  • Continued construction of Reaches 1-3 levees.
  • Continued coordination for remaining project elements. 

FY 26 ACCOMPLISHMENTS

  • Complete construction of Reaches 1-3 levees. 
  • Coordinate fill delivery for Pond A12/A13 ecotone construction.
  • Award A/E design task order for UPRR closure structure and pedestrian bridge.
  • Award A/E design task order for Reach 4/5 levee.
  • Complete preliminary design for Artesian Slough Closure Structure/Pump Station/Pedestrian Path

ISSUES AND OTHER INFORMATION

  • The Non-Federal Sponsors are the Santa Clara Valley Water District (Valley Water) and the California State Coastal Conservancy.

CONGRESSIONAL INTEREST

  • 17th District. Rep. Ro Khanna

POINT OF CONTACT

  • Deputy for Project Management, Thomas R. Williams, 415-503-6560

Updated on 02 March 2026

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