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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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Category: 2017

  • 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…

  • Upper Green Valley Creek Fish Passage Project

    This project replaced a severely undersized, failing private road culvert on Upper Green Valley Creek — a Russian River tributary in Sonoma County — with a 15-foot bottomless arch culvert and a 157-foot step-pool roughened channel with boulder weirs for grade control. The culvert had blocked coho access under all flow conditions. The project opened…

  • Pennington Creek Steelhead Barrier Removal Project

    This project removed a 1920s-era concrete diversion weir and ineffective fish ladder on Pennington Creek at the Rancho El Chorro Outdoor School in San Luis Obispo County, replacing approximately 160 linear feet of channel with engineered step pools. A new fish screen was installed at the diversion intake with a minimum bypass flow protective of…