Dry Creek (Warm Springs Dam) Restoration, Sec. 1135

DRY CREEK (WARM SPRINGS) RESTORATION, SEC. 1135

CONTINUING AUTHORITIES PROGRAM

Ecosystem Restoration Detailed Project Report with Integrated Environmental Assessment (PDF)

PROJECT LOCATION AND DESCRIPTION

The project is located along Dry Creek, below USACE Warm Springs Dam (WSD) and near the City of Healdsburg in Sonoma County, CA. An existing Corps project, Warm Springs Dam, was completed in 1983. After the Dam was built there was an increasing awareness of adverse impacts to the anadromous fish populations. A Biological Opinion (BO), issued by the National Marine Fisheries Service on Dry Creek at Warm Springs Dam, mandated that the Corps perform various Reasonable and Prudent Measures to save threatened salmonid species. The project restored 6.7 acres of stream and riparian habitat along 0.5 miles of stream by improving habitat complexity and hydrologic connectivity with the floodplain through the construction of side channels, large wood structures, riffles, and alcoves pool features. Riparian habitat was improved through invasive species reduction and riparian revegetation with native species. These features have already proven successful in enhancing shelter for young salmon and steelhead as they spend a critical first year or two in freshwater before migrating to the ocean. Project construction was completed in the fall of 2018 and the project is currently in the monitoring and adaptive management phase. USACE intends to begin the process to turn the project over to the non-Federal Sponsor in Summer 2023. 

            TOTAL FUNDING

            TOTAL COST                                                                           $      7,434,000

            FEDERAL COST                                                                       $      6,092,000

            NON-FEDERAL COST                                                             $      1,342,000

 

            TOTAL FEDERAL COST THROUGH FY 2022                        $      6,092,000

            FY 2023 BUDGET                                                                     $                    0   

            COST TO COMPLETE                                                               $                    0

 

FY 22 ACCOMPLISHMENTS

  • Continued Project Monitoring

FY23 ACCOMPLISHMENTS

  • Pending final ecological success criteria, the project will be turned over to the non-Federal Sponsor (NFS)

ISSUES AND OTHER INFORMATION

  • Sonoma Water is the NFS.
  • Project construction was completed in 2018 and was funded to completion.
  • The final draft of the OMRR&R plan will be provided to the NFS once ecological success has been determined by USACE.

CONGRESSIONAL INTEREST­

  • 2nd District, Rep. Jared Huffman

POINT OF CONTACT

  • Deputy for Project Management,  (415) 503-6593.

Updated on 14 February 2023

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