DRY CREEK (WARM SPRINGS DAM) RESTORATION CONSTRUCTION
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 restores 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 alcove pool features. Riparian habitat will be improved through invasive species reduction and riparian revegetation with native species.
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TOTAL FUNDING1
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TOTAL COST
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$ 49,106,000
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FEDERAL COST
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$ 31,752,000
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NON-FEDERAL COST
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$ 17,354,000
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TOTAL FEDERAL COST THROUGH FY 2025
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$ 31,752,000
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FY 2026 BUDGET
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$ 0
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COST TO COMPLETE
1 Includes Feasibility (50/50) and PED (75/25) funding.
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$ 0
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FY 26 ACCOMPLISHMENTS
- Updates in progress. Check back soon for more information.
FY25 ACCOMPLISHMENTS
- PHASE I & PHASE II construction substantially complete.
- OMRR&R Manual & project turnover to the non-Federal partner.
- Began monitoring & adaptive management in Summer 2025
- Planning and design to repair the damage from the winter storms in Phase 1, Reach 10.
fy 23 – 24 ACCOMPLISHMENTS
- Phase I: Completed construction of the majority of subarea Reach 10.
- Phase II: Awarded construction contract and completed the majority of subarea 4C.
- Construction is suspended during the northern California rainy season (generally October – May). Phase I and Phase II construction to re-commence in JUNE 2024.
ISSUES AND OTHER INFORMATION
- Sonoma Water (formerly Sonoma County Water Agency) is the Non-Federal Sponsor (NFS).
- Heavy winter storms in 2025 damaged 3 areas in Phase 1, Reach 10.
- 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, Thomas R. Williams, 415-503-6560
Updated on 20 February 2026
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