Lemhi River Mile 32 Restoration and Diversion Consolidation

Salmonid Habitat Restoration and Acquisition

Fish Screening Instream Flow Instream Habitat Riparian Habitat
Project ID004 21 SA
Recovery DomainsSnake River
Start Date12/09/2021
End Date11/28/2022
Year2021
StatusTerminated
Last Edited05/08/2024
 
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Description    


The Lemhi SWCD had proposed to implement an irrigation infrastructure project to close a diversion on the Lemhi River and pipe water around an area designated for habitat restoration on 0.95 mile of the Lemhi River and 0.06 mile of Hayden Creek. Numerous habitat actions were to take place at the site, where conditions include a straightened channelized homogeneous river segment that contained no instream woody material, disengaged floodplain, and limited riparian vegetation. Lemhi SWCD was the lead on the diversion portion of the project and intended to subcontract the habitat restoration actions to Trout Unlimited (TU).



During project development, the proposed irrigation consolidation was protested by neighboring ranches and Lemhi SWCD was not able to find a way forward that suited all parties. The landowner farthest downstream, on whose property the consolidation was to take place, dropped out of the project. The other two landowners where the majority of habitat actions were to take place were still on board to complete the project. However, as there was no longer the project portion to be completed by Lemhi SWCD, it made more sense for TU to become the project sponsor and hold their own contract with OSC. Habitat restoration actions may be found under PCSRF Project 014 21 SA, Lemhi RM32 Habitat Enhancement Project, Confluence Phase.

Project Benefit    


Developing a large portion of this property into more of a natural floodplain while restoring natural river processes and function will directly increase habitat capacity for juvenile life stages of salmon and steelhead. Improving the current condition by increasing river sinuosity, developing habitat complexity in the form of woody debris structures, constructing side channels, and riparian zone restoration will result in improved survival for all freshwater juvenile life stages. The magnitude of these affects will be substantial since the project is located at the confluence of the Lemhi River and Hayden Creek primary Chinook salmon production areas. The cold clear Hayden Creek waters mix with the nutrient rich Lemhi River waters and create a prime location for summer parr and overwintering juvenile steelhead and salmon.

Accomplishments

Metric Completed Originally
Proposed
Instream Habitat
  Stream Miles Treated .00 1.01
Riparian Habitat
  Stream Miles Treated .00 1.00
  Acres Treated .0 10.0

Funding Details

SourceFunds
PCSRF$5,176
Other$4,210
Report Total:$9,387


Project Map



Worksites

WS-1    


  • Worksite Identifier: WS-1
  • Start Date: 04/01/2023
  • End Date: 10/31/2024
Area Description

No Area Description data was found for this worksite.

Location Information

  • Basin: Salmon (170602)
  • Subbasin: Lemhi (17060204)
  • Watershed: Middle Lemhi River (1706020407)
  • Subwatershed: Muddy Creek-Lemhi River (170602040702)
  • State: Idaho
  • Recovery Domain: Snake River
  • Latitude: 44.87333
  • Longitude: -113.62848

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 9,387.00
    •      . . C.0.b Length of stream treated/protected .00
    •      . . C.0.c
      Project identified in a Plan or Watershed Assessment
      OSC Team (Idaho Governor’s Office of Species Conservation and partners). 2019. Upper Salmon Subbasin Integrated Rehabilitation Assessment. Assessment prepared for and with the U.S. Department of the Interior, Bureau of Reclamation. June. 625 pp NOAA. 2017. ESA Recovery Plan for Snake River Spring/Summer Chinook Salmon (Oncorhynchus tshawytscha) & Snake River Basin Steelhead (Oncorhynchus mykiss). West Coast Region of NOAA Fisheries. November 2017
    •      . . C.0.d.1 Project Monitoring (LOV)
    •      . . C.0.d.2 Monitoring Location (LOV)
    •      . . C.1 Fish Screening ProjectY (Y/N)
      •      . . . . C.1.a Fish screen funding .00
      •      . . . . C.1.b Quantity of water protected by screens 0 (Acre feet/year)
      •      . . . . C.1.d.1 Fish screens replaced or modifiedY (Y/N)
        •      . . . . . . C.1.d.2 Number of fish screens replaced or modified 0
      •      . . C.3 Instream Flow ProjectY (Y/N)
        •      . . . . C.3.a Instream Flow Funding 9,386.59
        •      . . . . C.3.b Length of stream 'protected' for adequate flow .00
        •      . . . . C.3.c Change in water flow0 (cfs)
        •      . . . . C.3.h.1 Unspecified or other instream flow projectY (Y/N)
          •      . . . . . . C.3.h.2 cfs (cubic feet per second) of water conserved per year (cfs)
        •      . . C.4 Instream Habitat ProjectY (Y/N)
          •      . . . . C.4.a Instream Habitat Funding .00
          •      . . . . C.4.b Total length of instream habitat treated .00
          •      . . . . 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 .00
            •      . . . . . . C.4.c.4 Miles of off-channel stream created through channel reconfiguration and connectivity .00
            •      . . . . . . C.4.c.6 Instream pools created/added through channel reconfiguration and connectivity 0
          •      . . . . 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 .00
            •      . . . . . . C.4.d.5 Pools expected to be created through channel structure placement 0
            •      . . . . . . C.4.d.7 Number of structures placed in channel 0
          •      . . . . C.4.e.1 Streambank stabilization Y (Y/N)
            •      . . . . . . C.4.e.2 Material Used For Streambank Stabilization (LOV)
            •      . . . . . . C.4.e.3 Miles of streambank stabilized .00
          •      . . C.5 Riparian Habitat ProjectY (Y/N)
            •      . . . . C.5.a Riparian Habitat Funding .00
            •      . . . . C.5.b.1 Total riparian miles streambank treated .00
            •      . . . . C.5.b.2 Total Riparian Acres Treated .0
            •      . . . . C.5.c.1 Riparian plantingY (Y/N)
              •      . . . . . . C.5.c.2
                Species of plants planted in riparian
                None
              •      . . . . . . C.5.c.3 Acres planted in riparian .0
              •      . . . . . . C.5.c.4 Miles of streambank treated with riparian planting .00
            •      . . . . C.5.d.1 FencingY (Y/N)
              •      . . . . . . C.5.d.2 Miles of fence along stream .00
              •      . . . . . . C.5.d.3 Acres of riparian area protected by fencing .0