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Category: 2023

  • 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.

  • Native Fish Passage in the San Joaquin River at the Eastside Bypass Control Structure

    This project provided technical assistance, environmental permitting, and compliance support for the physical modification of the Eastside Bypass Control Structure (EBCS) on the San Joaquin River in Merced County — a gated flood control structure identified as a significant low-flow passage barrier within the San Joaquin River Restoration Program’s Restoration Area. By funding the renewal and completion of required environmental compliance documents, the project is enabling construction of a 380-foot engineered rock ramp and structural modifications to the EBCS that will improve migration conditions for spring-run Chinook salmon, steelhead, White Sturgeon, Green Sturgeon, and Pacific lamprey.

  • 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 salmon, and steelhead.

  • 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.

  • Designing for Sturgeon Passage in San Joaquin Eastside Bypass (Phase 1)

    This project used acoustic telemetry monitoring of White Sturgeon in the San Joaquin River Restoration Area to directly inform the design of fish passage improvements at the Eastside Bypass Control Structure (EBCS) in Merced County. By tracking when, where, and how adult White Sturgeon move through the restoration area relative to the EBCS — a gated flood control structure identified as a low-flow passage barrier — the project aimed to ensure that planned structural modifications and a new engineered rock ramp are designed to facilitate upstream migration by White Sturgeon, Green Sturgeon, Chinook salmon, and other native fishes in the…

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