Abernathy Creek Two Bridges

Salmonid Habitat Restoration and Acquisition

Instream Habitat Riparian Habitat
Project ID11-1386 R
Recovery DomainsWillamette R. - Lower Columbia
Start Date12/08/2011
End Date06/16/2014
Year2010
StatusCompleted
Last Edited04/19/2022
 
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Description    


This restoration project was located on mainstem Abernathy Creek, Cowlitz County on Washington Department of Natural Resources trust land. The Cowlitz Indian Tribe removed portions of an abandoned roadbed that inhibited full floodplain and channel migration zone connectivity. Roadbed encroachment had resulted in a uniform plane-bed channel that lacked adequate habitat to support ESA-listed steelhead and coho. Contractors excavated mainstem channel meander signatures within the footprint of the former roadbed and installed channel-spanning log jams. The excavated meanders and channel spanning jams increased sinuosity, pool-riffle frequency, and overall habitat complexity, and re-engaged historic channels on the far side of the valley. The 2009 Abernathy and Germany Creeks Intensively Monitored Treatment Plan (LCFRB 2009) identified this as a top project opportunity to improve conditions for salmon and steelhead in the subbasin. The project provided restoration of critical habitat for ESA-listed salmonids, and was an important restoration component of the IMW program. Reach- and basin-scale monitoring of project effects will be provided over the long term as part of the IMW program.

Project Benefit    


The project included removal of an abandoned roadbed that inhibited floodplain function, realignment for a more sinuous channel, ELJ installation, and riparian planting to improve habitat for salmon and steelhead.

Accomplishments

Metric Completed Originally
Proposed
Instream Habitat
  Stream Miles Treated .30 .30
Riparian Habitat
  Stream Miles Treated .60 .60
  Acres Treated 1.5 1.5

Funding Details

SourceFunds
PCSRF$200,000
State$286,305
Other$53,733
In-Kind Donated Labor$28,236
In-Kind Other$6,000
Report Total:$574,274


Project Map



Worksites

1-Two Bridges    


  • Worksite Identifier: 1-Two Bridges
  • Start Date:
  • End Date:
Area Description

No Area Description data was found for this worksite.

Location Information

  • Basin: Lower Columbia
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: Washington
  • Recovery Domain: Willamette R. - Lower Columbia
  • Latitude: 46.26154155
  • Longitude: -123.17951922

ESU

  • Lower Columbia River Coho Salmon ESU
  • Southwest Washington Steelhead DPS

Map

Photos

Metrics

Metrics
  • C.0 Salmonid Habitat Restoration and AcquisitionY (Y/N)
    •      . . C.0.a Habitat restoration and acquisition funding 574,274.27
    •      . . C.0.b Length of stream treated/protected .30
    •      . . C.0.c
      Project identified in a Plan or Watershed Assessment
      LCFRB (Lower Columbia Fish Recovery Board). 2009. Abernathy and Germany Creeks Intensively Monitored Treatment Plan. Prepared by HDR and Cramer Fish Sciences for the Lower Columbia Fish Recovery Board, Longview, WA.
    •      . . 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 569,511.39
      •      . . . . C.4.b Total length of instream habitat treated .30
      •      . . . . C.4.c.1 Channel reconfiguration and connectivityY (Y/N)
        •      . . . . . . C.4.c.2 Type of change to channel configuration and connectivity (LOV)
        •      . . . . . . C.4.c.3 Miles of stream treated for channel reconfiguration and connectivity .30
        •      . . . . . . C.4.c.4 Miles of off-channel stream created through channel reconfiguration and connectivity .10
        •      . . . . . . C.4.c.5 Acres of off-channel or floodplain connected through channel reconfiguration and connectivity 1.0
        •      . . . . . . C.4.c.6 Instream pools created/added through channel reconfiguration and connectivity 4
      •      . . . . 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 .30
        •      . . . . . . C.4.d.5 Pools expected to be created through channel structure placement 4
        •      . . . . . . C.4.d.7 Number of structures placed in channel 10
      •      . . C.5 Riparian Habitat ProjectY (Y/N)
        •      . . . . C.5.a Riparian Habitat Funding 4,762.88
        •      . . . . C.5.b.1 Total riparian miles streambank treated .60
        •      . . . . C.5.b.2 Total Riparian Acres Treated 1.5
        •      . . . . C.5.c.1 Riparian plantingY (Y/N)
          •      . . . . . . C.5.c.2
            Species of plants planted in riparian
            Grand fir (Abies grandis), Sitka spruce (Picea sitchensis), Oregon ash (Fraxinus latifolia), Pacific Ninebark (Physocarpus capitatus), Red-osier Dogwood (Cornus stolonifera), Salmonberry (Rubus spectabalis), Scouler’s Willow (Salix scouleria)...
          •      . . . . . . C.5.c.3 Acres planted in riparian 1.5