Instream and Riparian Restoration of Terwer Creek

Salmonid Habitat Restoration and Acquisition

Instream Habitat
Project IDYUROK-2015-1
Recovery DomainsN CA - S Oregon
Start Date07/01/2015
End Date06/15/2017
Year2015
StatusCompleted
Last Edited01/25/2024
 
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Description    


This project provided partial funding for a large-scale restoration effort in the Terwer Creek Gage Reach. Specifically, the funding contributed towards the installation of 46 constructed wood jams and 22 large wood/live willow baffles. Project objectives included 1) increasing formation and maintenance of deep pools with complex cover elements, productive salmonid spawning beds, and off-channel and other slow velocity habitats to benefit adult and juvenile salmonids and other native fish; and 2) promoting healthy and resilient riparian forests to benefit native and migratory bird species, facilitate long-term wood recruitment to fluvial habitats, and increase storage and retention of floodplain soils. The project was conducted using multiple funding sources including $2,769.98 from PCSRF project Yurok 2013-5. Yurok 2013-5 was originally intended to fund restoration in Hunter Creek and Terwer Creek. At the direction of NOAA, the database metrics for Yurok 2013-5 were revised to just include the restoration actions and funding spent in Hunter Creek while project Yurok 2015-1 database metrics were to reflect the Yurok 2013-5 funds spent conducting Terwer Creek restoration work in support of Project Yurok 2015-1.

Project Benefit    


Project goals included:
• Increasing the quantity and quality of salmon, steelhead and cutthroat habitat;
• Increasing riparian forest health and resiliency;
• Improving the status of ESA-listed SONCC coho salmon;
• Addressing limiting factors (lack of instream large wood, low velocity & spawning habitats; riparian dysfunction; water quality) for ESA-listed SONCC coho salmon;
• Helping to ensure overall sustainability of naturally-spawning salmon, steelhead and cutthroat in the Lower Klamath Sub-basin;
• Helping to recover, conserve and maintain ESA-listed SONCC coho salmon;
• Helping to maintain salmon and steelhead for the exercise of the Yurok Tribe’s federally reserved fishing right;
• Restoring habitat for salmon, steelhead and cutthroat.

Outcomes & Benefits
Project outcomes include increasing the amount of high quality juvenile salmonid rearing habitat and improving conditions for adult salmonids returning to spawn. YTFP will conduct pre- and post-project monitoring to help assess restoration effectiveness. We anticipate increasing pool frequency (20-50%), average pool depth (20-30%), instream shelter complexity (>1 point), and percent instream cover (20-50%) within the project reach. We will also be assessing winter use of the CWJs by juvenile salmonids to improve our understanding of fish response to habitat restoration actions and to apply the knowledge gained to future efforts.

Other measurable outcomes and benefits include:
Instream Habitat (C.4)
Channel Structure Placement (C.4.d)
Stream Length Treated (Miles) – 1.0
Area Treated (Acres) – 8.5
Number of Channel Structures - 58
Structure Type – Wood Jams (Bar Apex, Deflector & Bar Roughness Jams)
Structure Materials - Whole Tree Materials
Anticipated Number of Pools Created - 20

Riparian Habitat Project (C.5)
Riparian Planting (C.5.c)
Stream Length Planted (Miles) – 1.0
Area Planted (Acres) – 10
Number of Trees Planted – 250 Conifers & Numerous Willow Cuttings
Species Planted – Coastal Redwood (Sequoia sempervirens)
Douglas Fir (Pseudotsuga menziesii)
Willow (Salix spp.)

Accomplishments

Metric Completed Originally
Proposed
Instream Habitat
  Stream Miles Treated 1.00 1.00

Funding Details

SourceFunds
PCSRF$15,770
State$206,418
Other$457,269
Report Total:$679,457


Project Map



Worksites

6004    


  • Worksite Identifier: 6004
  • Start Date:
  • End Date:
Area Description
Terwer Creek

Location Information

  • Basin: Klamath (180102)
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: California
  • Recovery Domain: N CA - S Oregon
  • Latitude: 41.534
  • Longitude: -123.985

ESU

  • Southern Oregon / Northern California Coastal Chinook Salmon ESU
  • Southern Oregon/Northern California Coast Coho Salmon ESU
  • Klamath Mountains Province Steelhead DPS
  • Un-Named ESU Cutthroat

Map

Photos

Metrics

Metrics
  • C.0 Salmonid Habitat Restoration and AcquisitionY (Y/N)
    •      . . C.0.a Habitat restoration and acquisition funding 679,457.00
    •      . . C.0.b Length of stream treated/protected 1.00
    •      . . C.0.c
      Project identified in a Plan or Watershed Assessment
      Gale, D.B. and D.B. Randolph. 2000. Lower Klamath River Sub-Basin Watershed Restoration Plan. Yurok Tribal Fisheries Program. Klamath CA.
    •      . . C.0.d.1 Project Monitoring (LOV)
    •      . . C.0.d.2 Monitoring Location (LOV)
    •      . . C.4 Instream Habitat ProjectY (Y/N)
      •      . . . . C.4.a Instream Habitat Funding 679,457.00
      •      . . . . C.4.b Total length of instream habitat treated 1.00
      •      . . . . C.4.d.1 Channel structure placementY (Y/N)
        •      . . . . . . C.4.d.2 Material used for channel structure (LOV)
        •      . . . . . . C.4.d.3 Miles of stream treated through channel structure placement 1.00
        •      . . . . . . C.4.d.4 Acres of streambed treated through channel structure placement 8.5
        •      . . . . . . C.4.d.5 Pools expected to be created through channel structure placement 10
        •      . . . . . . C.4.d.7 Number of structures placed in channel 68