Wimpey Creek (Skinner) Restoration

Salmonid Habitat Restoration and Acquisition

Fish Passage Improvement Instream Habitat Riparian Habitat
Project ID003 16 SA
Recovery DomainsInterior Columbia
Start Date06/02/2017
End Date06/02/2020
Year2016
StatusOngoing
Last Edited01/18/2018
 
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Description    


Project construction will occur within a 1.4 mile reach of Wimpey Creek.

Fish passage improvements will open 1.48 miles in Wimpey Creek for all life stages of ESA-listed and resident fish species. Two partial barriers will be modified: one diversion will be improved with a constructed riffle and one diversion will be improved with a boulder-cascade weir.

Channel shaping and realignment will be completed within a 1.4 mile reach, and will include 0.07 mile (0.1 acre) of off-channel stream construction and excavation of 17 pools.
Channel rehabilitation actions will be accomplished through reconnection of 1.83 acres of floodplain. 72 instream structures will be placed instream, these will include logjams, rootwads, weirs, and other engineered structures to create instream habitat complexity. Seven pools will be created by scour.

Riparian treatment will consist of native planting by seeding, sod mats, containerized plants and willow stakes on approximately 6.1 acres within the 1.4 mile reach of Wimpey Creek. Woody plants include Populus balsamifera spp. Trichocarpa, P. tremuloides, Cornus sericea, Amelanchier alnifolia, Alnus viridis, Betula occidentalis, Prunus virginiana, Rosa woodsii, and Salix spp. The native seed mixture includes Achillea millefolium, Calamagrostis canadensis, Deschampsia cespitosa, Elymus lanceolatus, E. trachycaulus, Geum macrophyllum, Artemisia tridentata, Achnatherum hymenoides, Festuca idahoensis, Gaillardia aristata, and Pascopyrum smithii. A cattle and wildlife exclusion fence will protect 0.26 mile of both sides of Wimpey Creek. Approximately 220 containerized plants outside of the fenced area will receive individual plant protection. All new plantings will receive irrigation the first season, and thereafter as deemed necessary.

Project Benefit    


The existing limiting factors identified for Lemhi River steelhead and salmon are water quantity, water temperature, increased sediment, instream habitat complexity, riparian condition, floodplain connectivity, and passage barriers. The project actions to be implemented through this project will address these factors.

Accomplishments

Metric Completed Originally
Proposed
Instream Habitat
  Stream Miles Treated 1.40
Riparian Habitat
  Stream Miles Treated 1.40
  Acres Treated 6.1
Fish Passage
  Barriers Removed 2
  Miles Opened 1.48

Funding Details

SourceFunds
PCSRF$246,330
Other$144,965
Report Total:$391,295


Project Map



Worksites

Wimpey Creek    


  • Worksite Identifier: Wimpey Creek
  • Start Date: 06/02/2017
  • End Date: 06/02/2020
Area Description
Lemhi River tributary

Location Information

  • Basin: Salmon
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: Idaho
  • Recovery Domain: Interior Columbia
  • Latitude: 45.101848
  • Longitude: -113.711227

ESU

  • Snake River Basin Steelhead DPS
  • Snake River Spring/Summer-run Chinook Salmon ESU

Map

Photos

Metrics

Metrics
  • C.0 Salmonid Habitat Restoration and AcquisitionY (Y/N)
    •      . . C.0.a Habitat restoration and acquisition funding .00
    •      . . C.0.b Length of stream treated/protected
    •      . . 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.2 Fish Passage ImprovementY (Y/N)
      •      . . . . C.2.a Fish Passage Funding
      •      . . . . C.2.b.1 Length of stream made accessible
      •      . . . . C.2.b.3 Type of blockage/barrier (LOV)
      •      . . . . C.2.b.4 Number of blockages/impediments/barriers impeding passage
      •      . . . . C.2.c.1 Fish passage blockages removed or altered (other than road crossings reported in C.2.f to C.2.i)Y (Y/N)
        •      . . . . . . C.2.c.2 Number of blockages/impediments/barriers removed/altered
      •      . . C.4 Instream Habitat ProjectY (Y/N)
        •      . . . . C.4.a Instream Habitat Funding
        •      . . . . C.4.b Total length of instream habitat treated
        •      . . . . 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
          •      . . . . . . C.4.c.4 Miles of off-channel stream created through channel reconfiguration and connectivity
          •      . . . . . . C.4.c.5 Acres of off-channel or floodplain connected through channel reconfiguration and connectivity
          •      . . . . . . C.4.c.6 Instream pools created/added through channel reconfiguration and connectivity
        •      . . . . C.4.d.1 Channel structure placementY (Y/N)
          •      . . . . . . C.4.d.2 Material used for channel structure (LOV)
          •      . . . . . . C.4.d.5 Pools expected to be created through channel structure placement
          •      . . . . . . C.4.d.7 Number of structures placed in channel
        •      . . C.5 Riparian Habitat ProjectY (Y/N)
          •      . . . . C.5.a Riparian Habitat Funding
          •      . . . . C.5.b.1 Total riparian miles streambank treated
          •      . . . . C.5.b.2 Total Riparian Acres Treated
          •      . . . . 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
          •      . . . . C.5.d.1 FencingY (Y/N)
            •      . . . . . . C.5.d.2 Miles of fence along stream