Cochran Creek Fish Passage and Channel Restoration- Planning and Design

Salmonid Restoration Planning and Assessments

Restoration Planning And Coordination
Project ID725214
Recovery DomainsN. CA - S. OR and CA Coast
Start Date06/01/2017
End Date02/12/2020
Last Edited04/14/2022
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Ninety percent design plans and permit package developed for stream habitat and fish passage improvement on Cochran Creek and Quail Slough.

Project Benefit    

Design plans will lead to remediation of the tide gate migration hindrance at the confluence of Cochran Creek and Fay Slough which will open up 1.93 miles of accessible habitats for juvenile Coho Salmon rearing and adult Coho Salmon spawning. The new tide gate to be installed at the confluence of Quail Slough and Fay Slough will re-introduce a muted tidal cycle into Quail Slough and provide new brackish non-natal rearing habitats for Coho Salmon.


Metric Completed Originally

Funding Details

In-Kind Donated Labor$4,800
In-Kind Other$259,705
Report Total:$329,947

Project Map



  • Worksite Identifier: 7211370
  • Start Date:
  • End Date:
Area Description
Cochran Creek

Location Information

  • Basin: Northern California Coastal
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: California
  • Recovery Domain: N. CA - S. OR and CA Coast
  • Latitude: 40.802334
  • Longitude: -124.090728


  • California Coastal Chinook Salmon ESU
  • Southern Oregon/Northern California Coast Coho Salmon ESU
  • Northern California Steelhead DPS




  • B.0 Salmonid Restoration Planning and AssessmentsY (Y/N)
    •      . . B.0.a Planning And Assessment Funding 65,441.00
    •      . . B.0.b.1 Area Encompassed 15.7
    •      . . B.1 Restoration Planning And CoordinationY (Y/N)
      •      . . . . B.1.a Planning and Coordination funding 65,441.00
      •      . . . . B.1.b.11 Engineering/design work for restoration projectsY (Y/N)
        •      . . . . . . B.1.b.11.a
          Name of plan implemented
          National Marine Fisheries Service, 2014, Recovery Plan for the Southern Oregon Northern California Coast Evolutionary Significant Unit of Coho Salmon, National Marine Fisheries Service, Arcata, CA
        •      . . . . . . B.1.b.11.b
          Description and scope of the plan implemented
          In the tidally-influenced lower watersheds of Humboldt Bay, such as Cochran Creek, anthropogenic activities have reduced the quantity and quality of the tidal freshwater and estuarine rearing habitat available to salmonids. This planning/design project will produce fully-permitted, final design plans, that once implemented, will establish access for all life phases of coho salmon to utilize suitable rearing and spawning habitats in Cochran Creek and its tributary Quail Slough.