Dry Creek (Warm Springs Dam) Restoration

DRY CREEK (WARM SPRINGS DAM) RESTORATION STUDY

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. The project will restore approximately 47 acres of stream, floodplain and riparian habitat along 2.6 miles of stream. Restoration measures include increasing habitat complexity and improving hydrologic connectivity with the floodplain by constructing combinations of riffles, large wood structures, backwaters, side channels, and alcoves pool features. Riparian habitat will be improved through invasive species reduction and riparian revegetation with native species.  

Project construction is scheduled in three phases as follows:

  • Phase I: Construction began along 1.0 mile of upper Dry Creek in Summer 2022 and is scheduled to be complete in Summer 2023
  • Phase II: Construction scheduled for 2023-2024 along 0.65 miles of Dry Creek
  • Phase III: Construction scheduled for 2024-2025 along 0.95 miles of lower Dry Creek

            TOTAL FUNDING

            TOTAL COST                                                                                        $      44,768,306

            FEDERAL COST                                                                                    $      29,099,399

            NON-FEDERAL COST                                                                          $      15,668,907

            TOTAL FEDERAL EXPENDITURES THROUGH FY 2022                   $        4,260,162

            Total expenditures Include Feasibility, Pre-Construction Engineering & Design (PED) and Construction funding. NFS in-kind credit for Feasibility and Construction activities could affect total federal costs.

FY 20 ACCOMPLISHMENTS

  • Complete Draft 99% designs
  • Execute PPA

FY 21 ACCOMPLISHMENTS

  • The Project Partnership Agreement was signed in December of 2020 and planning and design work began for the Phase I reaches (10, 13a and 13b). 

FY 22 ACCOMPLISHMENTS

  • The Phase I construction project was awarded in May 2022; construction began in July 2022
  • Phase II 99% designs were completed and reviewed
  • Phase III designs were being developed

OTHER INFORMATION

  • Sonoma Water is the non-Federal Sponsor (NFS).
  • A Biological Opinion (BO), issued by the National Marine Fisheries Service, mandates that SCWA and USACE perform various Reasonable and Prudent Measures to save threatened and endangered salmonid species. Implementation of this ecosystem restoration project will help comply with these BO requirements.

CONGRESSIONAL INTEREST

  • 2nd District, Rep. Jared Huffman
  • 5th District, Rep. Mike Thompson

POINT OF CONTACT

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

Updated on 07 September 2022

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