South Fork Coquille River Riparian Habitat Improvement & Winter Coho Rearing Habitat Project Phase 2

Salmonid Habitat Restoration and Acquisition

Riparian Habitat
Project ID11.438 Coq 2014
Recovery DomainsOregon Coast
Start Date07/01/2014
End Date01/31/2015
Last Edited10/21/2021
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Bioengineering and Associates installed a 200 long by 40 wide Live Willow Brush Mattress, re-vegetating a portion of a severely eroded stream bank. All work took place above OHW. A 200 x 25 section of bank was reshaped at 3V:1H slope and 4 long willow stakes driven on 3 centers over the entire surface as tie downs. A 3x3x 200 toe trench was installed at the bottom of the slope. Live willow cuttings 12-18 in length were placed perpendicular to the bank with butt ends sticking into the toe trench to form the brush mattress.The toe trench was keyed into the water table so that the willow cuttings will be in contact with water insuring successful rooting. Further layers of cuttings were laid up-slope with a minimum of two feet of of overlap. Tie bars of willow stripped of branches were laid horizontally across the bank and tied to the tie down stakes at 3 intervals forming a grid. A thin layer of gravel was placed on top of the willow mattress to reduce desiccation and prevent soil water evaporation while the willows take root. A wall constructed from 6-8 long willow driven into the ground 3-4 on 3 centers was installed in order to hold the willows in the toe trench until they become rooted. Total height of the wall is 3 and was filled with a combination of gravel and a minimum amount of hand placed cobbles, totaling less than 30 yards. CIT staff and 3-4 Tribal Members assisted in cutting, pulling, loading and placing willow near the site. The landowner provided material and labor in the construction of a wildlife friendly fence upslope of the willow mattress site. The landowner provided and installed 1800 of 7 exclusionary fencing.

Project Benefit    

Enhancement and restoration actions will emphasize the creation of habitat elements which create slow water refugia for Coquille Coho Salmon such as alcoves, edge water and re-establishment of overhanging vegetation. Re-vegetation of the bank will also improve water quality by increasing shade and reduce amounts of fine sediments from a severely eroded stream bank from entering the waterway. This project is expected to improve streambank stability. Other aquatic and riparian dependent species including Oregon Coast Chinook, OC steelhead, OC coastal cutthroat trout, lamprey and beaver will benefit from this project. Reduction of fine sediment by re-vegetation will improve gravel quality which will benefit macro-invertebrate production, enhancing food available for salmonids. Re-vegetation occurring will increase amounts of leaf and twig litter providing food sources for macro-invertebrates. Exclusionary fencing will keep livestock off riverbank and out of the project area.


Metric Completed Originally
Riparian Habitat
  Stream Miles Treated .04 .04
  Acres Treated .2 .2

Funding Details

In-Kind Other$17,000
Report Total:$217,000

Project Map



  • Worksite Identifier: 1001220
  • Start Date: 07/01/2014
  • End Date: 01/31/2015
Area Description

No Area Description data was found for this worksite.

Location Information

  • Basin: Southern Oregon Coastal
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: Oregon
  • Recovery Domain: Oregon Coast
  • Latitude: 42.98884493996431
  • Longitude: -124.15198445319845


  • Oregon Coast Coho Salmon ESU




  • C.0 Salmonid Habitat Restoration and AcquisitionY (Y/N)
    •      . . C.0.a Habitat restoration and acquisition funding 217,000.00
    •      . . C.0.b Length of stream treated/protected .04
    •      . . C.0.c
      Project identified in a Plan or Watershed Assessment
    •      . . C.0.d.1 Project Monitoring (LOV)
    •      . . C.0.d.2 Monitoring Location (LOV)
    •      . . C.5 Riparian Habitat ProjectY (Y/N)
      •      . . . . C.5.a Riparian Habitat Funding 217,000.00
      •      . . . . C.5.b.1 Total riparian miles streambank treated .04
      •      . . . . C.5.b.2 Total Riparian Acres Treated .2
      •      . . . . C.5.c.1 Riparian plantingY (Y/N)
        •      . . . . . . C.5.c.2
          Species of plants planted in riparian
        •      . . . . . . C.5.c.3 Acres planted in riparian .2
        •      . . . . . . C.5.c.4 Miles of streambank treated with riparian planting
      •      . . . . C.5.d.1 FencingY (Y/N)
        •      . . . . . . C.5.d.2 Miles of fence along stream .30