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    The tide gate structure has been seismically retrofitted and rehabilitated, featuring deeper foundations to withstand extreme seismic events, new barrier fencing, and a newly resurfaced top.
    The tide gate structure has been seismically retrofitted and rehabilitated, featuring deeper foundations to withstand extreme seismic events, new barrier fencing, and a newly resurfaced top.
    May 5, 2026
    Palo Alto Tide Gate Project Reaches Key Milestone

    Valley Water has reached a major milestone in extending the life of an important flood protection system in Palo Alto. In February 2026, the agency completed Phase 1 of the Palo Alto Flood Basin Tide Gate Structure Seismic Retrofit and Rehabilitation Project. 

    Read More
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    A home with a wooden deck and balcony is surrounded by a vibrant, drought-tolerant garden filled with colorful flowers like orange poppies, purple blooms, and green shrubs, with a stone pathway leading to the front door and a large tree in the yard.
    April 28, 2026
    Bring Your Dream Yard to Life This Spring!

    Spring is here, and it’s the perfect time to refresh your outdoor space. Imagine stepping outside to a yard that’s not only beautiful but also sustainable, a space filled with vibrant plants, smart irrigation, and features that save water and money. With Valley Water’s rebate programs, that dream yard is closer than you think!

    Read More
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    A view of the tunnel entrance on the right, and the diversion outlet structure. The staged, 13-foot diameter pipe will be placed inside the tunnel and will connect to the diversion outlet structure. April 2026.
    A view of the tunnel entrance on the right, and the diversion outlet structure. The staged, 13-foot diameter pipe will be placed inside the tunnel and will connect to the diversion outlet structure. April 2026.
    April 27, 2026
    Anderson Dam Tunnel Project on track for completion in 2026

    The Anderson Dam Tunnel Project is entering its final stages, with Valley Water contractors completing key milestones such as the final concrete work inside the tunnel and installation of critical components. The project remains on track for completion in 2026.

    Read More
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  • Almaden Lake Improvement Project
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  • Lower Berryessa Creek Flood Protection (Phase 3)*
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  • San Francisquito Creek Flood Protection*
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  • Uvas Creek Levee Rehabilitation

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  3. Cunningham Flood Detention Facility Certification Project

Cunningham Flood Detention Facility Certification Project

Image
Lake Cunningham Park
Status
Completed 2019
Phase
Completed 2019
Location
San Jose
Construction Schedule
Completed 2019
Cost
$11.6 M

The Cunningham Flood Detention Facility is the home to a $11.6 million flood protection project located in Lake Cunningham Regional Park.  The park has been a detention area and provides temporary storage of storm flows within the park site.  To meet FEMA certification requirements, an existing levee will be raised along Capitol Expressway and Cunningham Avenue.  A floodwall ranging from one to four feet high will also be constructed along Cunningham Avenue and Flint Creek.  These improvements, in combination with the completed Lower Silver Creek Flood Protection Project improvements, is expected to protect ~3,200 properties from a 100-year flood event.

Lake Cunningham Regional Park is located in the city of San Jose.  It is a 203 acre park sitting approximately eight miles east of downtown San Jose and is flanked by lower Silver Creek on the northwest edge and the Flint Creek on the northern border. 

This project was completed in the fall of 2019. Please see the Cunningham Flood Detention Facility Certification Project Brochure, Current Status & Neighborhood Impact and Frequently Asked Questions for details.

For more information:

  • Map of Area Planned for FEMA Hazard Zone Redesignation after completion of Cunningham Flood Detention Facility Certification Project Improvements
  • Cunningham Flood Detention Facility Project Update (January 2019)
  • See the Cunningham Flood Detention Facility Certification Project Brochure
  • Reference the Current Status & Neighborhood Impact
  • View the Frequently Asked Questions
  • Contact Public Information Representative Jose Villarreal at (408) 630-2879 or by email at [email protected].
  • Sign up to receive project updates via email.
Cunningham Flood Detention Facility Project Update (January 2019)

This project was completed in the fall of 2019. Please see the Cunningham Flood Detention Facility Certification Project Brochure, Current Status & Neighborhood Impact and Frequently Asked Questions for details.

For more information:

  • Map of Area Planned for FEMA Hazard Zone Redesignation after completion of Cunningham Flood Detention Facility Certification Project Improvements
  • Cunningham Flood Detention Facility Project Update (January 2019)
  • See the Cunningham Flood Detention Facility Certification Project Brochure
  • Reference the Current Status & Neighborhood Impact
  • View the Frequently Asked Questions
  • Contact Public Information Representative Jose Villarreal at (408) 630-2879 or by email at [email protected].
  • Sign up to receive project updates via email.
Cunningham Flood Detention Facility Project Update (January 2019)

Cunningham Flood Detention Facility Certification Project – Final Initial Study and Mitigated Negative Declaration

Cunningham Flood Detention Facility Final Planning Study Report

 

The improvements from the Santa Clara Valley Water District's Lake Cunningham Flood Detention Project, in combination with the benefits from the completed Lower Silver Creek Project, is expected to protect approximately 3200 properties in the surrounding neighborhood in San Jose from a 100 year flood event. Such an event has the likelihood of occurring once every 100 years according to FEMA.   

The Santa Clara Valley Water District is focused on preparing for future wet and dry years to ensure Santa Clara County's 1.9 million residents have a reliable water supply in the extreme weather events which the changing climate may bring. 

The Cunningham Flood Detention Facility is located in the Lower Silver Creek Watershed, a sub-basin of the Coyote Watershed. Nearly half of the Lower Silver Creek Watershed drains to the park, and then flows into Lower Silver Creek. In its entirety, Lower Silver Creek flows generally northward from Silver Creek Road at Barberry Lane to Coyote Creek near the U.S. 101 freeway near McKee Road.

Recorded flooding events within the Lower Silver Creek Watershed include storms in December 1889, January and March 1911, January 1952, December 1955, April 1958, January 1963, February 1983, March 1983, and close-calls during the February 1998 El Niño.

Water District staff completed their planning study in 2015, and has finalized their design recently. To fulfill the requirements of the California Environmental Quality Act, A Mitigated Negative Declaration has also been prepared for this project and adopted by the Board of Directors.

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