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The Forum is a collaborative partnership formed to protect and revitalize anadromous fish populations in California by promoting collaboration among public and private sectors for fish passage improvement projects and programs.

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Tag: Humboldt County

  • Mid-Klamath Tributary Fish Passage Improvement Project

    This ongoing annual project deploys field crews equipped with hand tools to assess and manually treat seasonal low-flow barriers on 30 to 40 tributaries of the Klamath and Salmon Rivers in Siskiyou and Humboldt counties, opening access to approximately 40 miles of cold-water refugia and spawning habitat each summer and fall for Chinook salmon, coho…

  • Mid Klamath Creek Mouth Enhancement Project

    This project annually assessed and manually improved fish passage at the mouths of up to 41 cold water tributaries along a roughly 75-mile stretch of the mid-Klamath River between Weitchpec in Humboldt County and Cottonwood Creek in Siskiyou County, enhancing thermal refugia access for coho salmon, Chinook salmon, and steelhead during critical low-flow summer and…

  • Lawrence Creek Off-Channel Habitat Connection Project

    This project constructed five large wood and earthwork structures — including a Venturi jam, deflector jam, apex bar jam, inlet jam, and excavated alcove — on Lawrence Creek, a tributary to Yager Creek in the lower Van Duzen River watershed in Humboldt County, to restore hydrologic connectivity to off-channel habitats and increase low-velocity winter rearing…

  • Strawberry Creek at Clam Beach Fish Passage Project

    This project retrofitted a concrete flood conveyance channel adjacent to the Highway 101 culvert on Strawberry Creek near McKinleyville in Humboldt County by installing 13 angled concrete baffles to create a functional fishway, restoring 5 miles of upstream spawning and rearing habitat for steelhead, coho salmon, coastal cutthroat trout, and lamprey species. Location: Strawberry Creek,…

  • Seiad Creek Off-Channel Connection / Fish Passage Enhancement Project

    This project restored connectivity between Seiad Creek and three previously constructed off-channel ponds — Alexander, Stender, and Durazo — in Siskiyou County, California, a tributary system of the Klamath River. By removing sediment blockages and installing wood and rock structures to redirect flow, the project improved access to 19,000 square feet of critical off-channel rearing…

  • Mid Klamath Fish Passage Improvement Project

    This ongoing annual project deploys trained crews each summer to assess and manually treat fish passage barriers at the mouths of up to 72 priority tributaries to the Klamath, Salmon, and Lower Scott Rivers across Humboldt and Siskiyou Counties. Barriers including debris jams, boulder cascades, and perched alluvial deltas are modified using hand tools to…

  • Cooper Mill Creek Fish Passage Improvement Project Designs

    This project funded site characterization and engineering design work for two legacy fish passage barriers on lower Cooper Mill Creek, a tributary to Yager Creek within the Van Duzen River basin in Humboldt County — a boulder step-weir complex at the creek mouth and a concrete sill approximately 0.5 miles upstream. Hydraulic modeling confirmed both…

  • Benbow Dam Removal Project

    This project fully removed the Benbow Dam from the South Fork of the Eel River at Benbow Lake State Recreation Area, approximately two miles south of Garberville in Humboldt County. Originally built in the 1930s for power generation, the dam had become a safety hazard blocking upstream migration. Removal spanned two construction seasons (2016–2017) and…

  • Salt River Ecosystem Restoration Project

    This large-scale cooperative project addressed sediment aggradation, fish passage, flooding, and drainage throughout the Salt River, a tidally influenced tributary to the Eel River Estuary near Ferndale in Humboldt County. Work included river channel restoration, estuary restoration at Riverside Ranch through levee and tidegate removal, upslope sediment reduction, and flood relief. The project benefits coho…

  • Dinner Creek Fish Passage Barrier Removal Project

    This project removed three undersized culverts on Dinner Creek at Briceland Thorne Road in Humboldt County — including a complete barrier to all life stages — and supplemented emergency replacement work with habitat improvements including river-run gravels, roughened channel work, and instream fish structures. Located in the South Fork Eel River watershed, the project opened…