Eighteenmile Creek Restoration (Beyeler)

Salmonid Habitat Restoration and Acquisition

Fish Passage Improvement Instream Habitat Riparian Habitat Upland Habitat And Sediment
Project ID009 14 SA
Recovery DomainsInterior Columbia
Start Date06/02/2017
End Date03/01/2019
Year2014
StatusCompleted
Last Edited10/21/2021
 
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Description    


Eighteenmile Creek is a headwater tributary to the Lemhi River. The Eighteenmile Creek Restoration Beyeler Project was implemented by the Lemhi Soil and Water Conservation District and addressed the lowest fish passage barrier on Eighteenmile Creek. Approximately three miles of fish habitat was made accessible to all life stages of ESA-listed spring/summer Chinook Salmon and steelhead.

In the past, Eighteenmile Creek had been appropriated from its original channel and modified to accommodate irrigation needs. The landowner annually created a push-up dam within the channel to divert water for irrigation. This project removed the push-up dam, relocated the point-of-diversion upstream to a new diversion structure and relocated 0.34 mile of Eighteenmile Creek back into its historic channel. Approximately 0.3 mile of the old channel, which was straightened, devoid of vegetation and impacted by cattle, was abandoned and filled in with excavated material from the downstream portion of the new channel. The new channel is 0.34 mile long and consists of pools separated by riffles, and follows the historic channel alignment through the willows. Construction of the new channel included both excavation and fill, as well as the creation of 31 pools and 31 riffles. The riffle crests were built up with material excavated from the pools. During construction of the new channel, the contractor removed sod mats, excavated the new channel, and then built the banks with the intact sod mats. Approximately, 0.19 mile of jack fence was installed along the east stream bank of Eighteenmile Creek at a 35-foot setback from water’s edge to promote the recovery of the riparian zone.

As part of this project, irrigation improvements were made for the Beyeler Ranch. This included installation of 865 ft. of 15” irrigation pipe from the new point-of-diversion and fish screen location (IDFG) to the existing pipeline and two new pumps and a Variable Frequency Drive (VFD). Livestock water pipeline (860 ft.) and 3 rubber tire troughs were installed to mitigate lost access for livestock to water from the creek. IDFG installed a new head gate, log weir and fish screen under separate funding.

Project partners included Governor’s Office of Species Conservation, Natural Resources Conservation Service, Trout Unlimited, the Upper Salmon Basin Watershed Program, Idaho Department of Fish and Game and Bureau of Reclamation. More importantly, the willing participation of three local land owners, without whom the project would never have happened. Match funding was provided by the Bonneville Power Administration, and non-match funding was provided by the Natural Resources Conservation Service EQIP contracts.

Project Benefit    


The suite of project tasks to be completed for this project will improve passage and instream complexity for a total of 3.34 miles of stream for spawning and rearing of ESA-listed spring/summer Chinook Salmon and steelhead in their respective Lemhi River populations.

Accomplishments

Metric Completed Originally
Proposed
Instream Habitat
  Stream Miles Treated .34 .34
Riparian Habitat
  Stream Miles Treated 1.00 1.00
  Acres Treated 2.3 2.3
Upland Habitat
  Acres Treated .5 .5
Fish Passage
  Barriers Removed 1 1
  Miles Opened 3.00 3.00

Funding Details

SourceFunds
PCSRF$167,859
Other$195,179
Report Total:$363,038


Project Map



Worksites

Eighteenmile Creek    


  • Worksite Identifier: Eighteenmile Creek
  • Start Date: 10/01/2017
  • End Date: 11/30/2018
Area Description
Salmon subbasin, 4th field HUC 17060204, Hawley Creek Watershed

Location Information

  • Basin: Salmon
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: Idaho
  • Recovery Domain: Interior Columbia
  • Latitude: 44.676624
  • Longitude: -113.337942

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 363,038.00
    •      . . C.0.b Length of stream treated/protected .65
    •      . . 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 152,996.00
      •      . . . . C.2.b.1 Length of stream made accessible 3.00
      •      . . . . C.2.b.3 Type of blockage/barrier (LOV)
      •      . . . . C.2.b.4 Number of blockages/impediments/barriers impeding passage 1
      •      . . . . 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 1
      •      . . C.4 Instream Habitat ProjectY (Y/N)
        •      . . . . C.4.a Instream Habitat Funding 105,924.00
        •      . . . . C.4.b Total length of instream habitat treated .34
        •      . . . . 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 .34
          •      . . . . . . C.4.c.4 Miles of off-channel stream created through channel reconfiguration and connectivity .00
          •      . . . . . . 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 29
        •      . . C.5 Riparian Habitat ProjectY (Y/N)
          •      . . . . C.5.a Riparian Habitat Funding 95,278.00
          •      . . . . C.5.b.1 Total riparian miles streambank treated 1.00
          •      . . . . C.5.b.2 Total Riparian Acres Treated 2.3
          •      . . . . C.5.c.1 Riparian plantingY (Y/N)
            •      . . . . . . C.5.c.2
              Species of plants planted in riparian
              Native potted willows from a local source and willows that were removed during construction were transplanted. Native sod was used along the new streambanks.
            •      . . . . . . C.5.c.3 Acres planted in riparian .5
            •      . . . . . . 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 .19
          •      . . C.6 Upland Habitat And Sediment ProjectY (Y/N)
            •      . . . . C.6.a Upland Habitat / Sediment Funding 8,840.00
            •      . . . . C.6.b.1 Acres of upland habitat area treated .5
            •      . . . . C.6.j.1 Upland livestock management Y (Y/N)
              •      . . . . . . C.6.j.2 Upland livestock management action(s) taken (LOV)
              •      . . . . . . C.6.j.4 Number of livestock water installations/developments 3