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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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  • North Fork Ryan Fish Passage Design Project

    This project produced engineering designs to replace a blown-out culvert and rock weir barrier on North Fork Ryan Creek — a tributary to Outlet Creek and the Eel River — near Willits in Mendocino County, to restore fish passage for Coho salmon and steelhead trout at all life stages.

  • Little Case Creek Fish Passage Project

    This project replaced two culverted road crossings on Little Case Creek — a tributary of Tenmile Creek in Laytonville, Mendocino County — with bridges to open up to one mile of upstream spawning and rearing habitat for endangered Central California Coast coho salmon and steelhead. Forum funding covered the permitting, cultural and biological surveys, and project oversight needed to advance the project to construction, which was funded separately through the CDFW Fisheries Restoration Grant Program.

  • Upper Noyo River Fish Passage Improvement and Sediment Reduction Project

    This project replaced a failing, undersized 9-foot culvert on the Mendocino Railway (Skunk Train) line with a 50-foot span corrugated steel arch structure to restore fish passage and eliminate a total barrier to migrating salmonids on the upper Noyo River in Mendocino County, California. In addition to opening 0.5 miles of steelhead and Coho salmon rearing habitat, the project prevented an estimated 8,400 cubic yards of sediment from being released into the Noyo River headwaters, protecting aquatic resources along approximately 3 miles of downstream habitat.

  • M1-Road Fish Passage Improvement Project

    This project replaced an undersized, deteriorating corrugated metal culvert on the M-1 Road with a full-sized 96-inch diameter culvert to restore fish passage on No-Name Gulch, a tributary to Big River in Mendocino County, California. The old culvert was a partial barrier to migrating salmonids on a stream identified by NOAA as historically productive habitat. The replacement opens 0.21 miles of spawning and rearing habitat in a high-priority recovery watershed for Central California Coast Coho salmon, North Coast steelhead, and Chinook salmon.

  • 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.

  • Manly Gulch Coho Access and Habitat Restoration Project

    This project replaced a failing road-stream crossing on Camp Road in Manly Gulch — a tributary to the Little North Fork of the Big River flowing through Mendocino Woodlands State Park in Mendocino County — with a 30-foot span timber bridge and realigned approximately 600 feet of channel. Log steps, pools, boulder weirs, rootwads, and a backwater alcove were installed to improve habitat. The project opened approximately 4,000 feet of upstream habitat for federally endangered coho salmon and threatened steelhead, species for which Manly Gulch is designated critical habitat.