Cooper Mill Creek Coho Salmon Fish Passage Design Project

Salmonid Restoration Planning and Assessments

Restoration Planning And Coordination
Project ID1551969314261
Recovery DomainsN. CA - S. OR and CA Coast
Start Date04/30/2019
End Date04/30/2022
Year2017
StatusCompleted
Last Edited06/30/2022
 
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Description    


No Description entered.

Project Benefit    


Designs that will later lead to the removal or modification of two fish barriers that are located on Cooper Mill Creek. Future improved fish passage for all salmonid life stages to 3.0 miles of anadromous stream and opportunities to provide winter and summer (cold water) refugia. Future improved access for natal and non-natal salmon species to high priority refugia habitat during extreme water velocity and temperature events in the lower Yager Creek basin.

Accomplishments

Metric Completed Originally
Proposed

Funding Details

SourceFunds
PCSRF$98,102
In-Kind Other$94,063
Report Total:$192,165


Project Map



Worksites

1551969314431    


  • Worksite Identifier: 1551969314431
  • Start Date:
  • End Date:
Area Description
Cooper Mill Creek

Location Information

  • Basin: Northern California Coastal
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: California
  • Recovery Domain: N. CA - S. OR and CA Coast
  • Latitude: 40.559234
  • Longitude: -124.057867

ESU

    No ESU data was found for this worksite.

Map

Photos

Metrics

Metrics
  • B.0 Salmonid Restoration Planning and AssessmentsY (Y/N)
    •      . . B.0.a Planning And Assessment Funding 98,102.00
    •      . . B.0.b.1 Area Encompassed 2.8
    •      . . B.1 Restoration Planning And CoordinationY (Y/N)
      •      . . . . B.1.a Planning and Coordination funding 98,102.00
      •      . . . . B.1.b.11 Engineering/design work for restoration projectsY (Y/N)
        •      . . . . . . B.1.b.11.a
          Name of plan implemented
          Recovery Plan for Southern Oregon Northern California Coast Coho Salmon (NOAA Final Sept. 2014)
        •      . . . . . . B.1.b.11.b
          Description and scope of the plan implemented
          The project developed designs that will lead to the removal or modification of two fish barriers located on Cooper Mill Creek. This will lead to improved fish passage for all salmonid life stages. Cooper Mill is an anadromous fish bearing tributary of Yager Creek, a major tributary to the Van Duzen River. Cooper Mill contains 3.0mi of anadromous stream and opportunities to provide winter and summer (cold water) refugia. This project improved access for natal and non-natal salmon species to high priority refugia habitat during extreme water velocity and temperature events in the lower Yager Creek basin. The designs focus on improving fish migration for all life cycles of Coho Salmon and steelhead trout during all seasons. The project area extends from the first barrier, located at the confluence of Cooper Mill Creek and Yager Creek, upstream approximately 0.5 miles to the second barrier, a remnant channel spanning concrete weir associated with an abandoned fish hatchery. The design process included a thorough site assessment of existing conditions, an analysis of design alternatives, and will conclude with final designs for up to two future restoration projects. The project developed 100% designs that are focused on enhancing instream habitat and improving fish migration for all life cycles of Coho and other salmonids. The design process has included an analysis of alternatives that address: 1) a California Conservation Corps constructed boulder step weir located at the confluence with Yager Creek (PAD #715463); 2) a concrete weir upstream (PAD #722973; 3) historic channelization and poor instream habitat complexity; and 4) appropriate locations, wood sizes, and configurations of instream habitat structures between the two barrier locations.