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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.

Forum Funded Restoration Projects

Home » Funded Projects
  • Lamprey Passage at Rowdy Creek

    This project installed a dedicated lamprey passage tube at the hatchery diversion structure on Rowdy Creek — a tributary to the Smith River in Del Norte County — which had functioned as a complete barrier to Pacific lamprey at low flows. A video monitoring system was also installed to document passage events, and public educational signage developed for the hatchery visitor area. The passage facility opened an estimated 11.4 miles of upstream habitat and addresses a culturally significant species for the Tolowa Dee-ni’ Nation, who have traditionally harvested lamprey from the Smith River. Location: Rowdy Creek Fish Hatchery, 140 Rowdy…

  • Iron Horse Vineyards Dam Removal Project

    This project removed an obsolete flashboard dam on lower Green Valley Creek at the Iron Horse Vineyards property in Sonoma County — the second of two remnant dams identified as the primary fish passage barriers in the lower creek. Approximately 35 cubic yards of concrete were excavated, banks regraded, large wood habitat structures installed, and willows planted. Removal opened 35 miles of upstream aquatic habitat, benefiting federally endangered Central California Coast coho salmon and threatened steelhead in a watershed that harbored the last documented wild Russian River coho prior to captive broodstock recovery efforts. Location: Lower Green Valley Creek, on…

  • Neefus Gulch Wood and Fish Passage at Appian Way

    This project developed engineering plans for replacing a failing road crossing on Neefus Gulch — a tributary to the North Fork Navarro River in Mendocino County — with a stream simulation arch culvert, and for installing 14 large wood structures to arrest an active knickpoint in a severely incised 1,600-foot channel reach. The designs were part of a broader restoration effort that also removed an upstream earthen dam. Subsequent monitoring documented 10 coho salmon redds and two steelhead redds, including in reaches where salmon had not spawned for over 70 years. Location: Neefus Gulch is a 1.4-square-mile tributary to the…

  • 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 create step-pool fishways, and brush bundles installed to enhance thermal refugia. The project benefits coho salmon, Chinook salmon, and steelhead, with over 80% of treated sites showing documented increases in salmonid presence post-treatment by 2022. Project Name: Mid Klamath Fish Passage Improvement Project Location: Tributaries…

  • Davy Brown and Munch Creek Fish Passage Engineering Project

    This project completed final engineering designs for the removal of three concrete low-water crossings on Davy Brown and Munch Creeks, tributaries to Manzana Creek within Los Padres National Forest in Santa Barbara County. One Munch Creek crossing will be removed and channel restored; two Davy Brown crossings will be replaced with stream-spanning bridges. The work will open approximately 3.1 miles of additional habitat in the Sisquoc River watershed — a Core 1 recovery priority — for federally endangered Southern California steelhead. Location: Davy Brown and Munch Creeks are tributaries to Manzana Creek, which is the largest tributary to the Sisquoc…

  • 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 structures block adult and juvenile salmonids at most flows. The designs will support future physical removal of barriers to coho salmon, Chinook salmon, and steelhead in a historically productive watershed. Location: Cooper Mill Creek is a 3.9-square-mile sub-watershed of Yager Creek, located approximately 2.5 miles…