Lower Pratt Creek Access & Flow Enhancement-PCSRF

Salmonid Habitat Restoration and Acquisition

Instream Flow
Project ID021 13 SA
Recovery DomainsSnake River
Start Date12/10/2015
End Date08/31/2017
Last Edited05/08/2024
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A new point of diversion(POD) pumping station was installed in Sandy Creek after the land owner successfully transferred his water right from Pratt Creek down to Sandy Creek. A new irrigation system was installed to more efficiently apply irrigation water, this included: 3 phase power and meter base installation, a pumping station with IDWR approved flow meter, and sprinkler system installed on lower Pratt Creek. The irrigation system includes 2 center pivots, 5 pod systems and 2393 feet of underground irrigation.

The landowner secured EQIP funds from NRCS after the PCSRF award was granted and was used for part of the project. This funding has been identified as non-match funding.

The original proposal included some stockwater installation to compensate for loss of access to the creek. The bid for the irrigation portion of the project was considerably higher than the original estimate so the stockwater installation was not paid for with PCSRF or BPA funds.

A part of the original sprinkler system design was dropped prior to beginning construction, which changed the metrics from the original application. Metric C.3.c changed from 1.0 cfs to 0.41 cfs flow to remain in lower Pratt Creek for 0.2 miles and C.3.e.2 changed from 724.5 ac. ft. to 296.8 acre feet saved. This water conservation will remain in place for a minimum of 20 years, per an agreement between the Lemhi Soil and Water Conservation District and the landowner.

Compliance monitoring for both engineering and project design as well as implementation monitoring was conducted onsite during project implementation.

Project Benefit    

The NMFS draft Recovery Plan (2015) Indicates that reduced streamflow is the most important factor limiting abundance and productivity for both Chinook salmon and steelhead in the Lemhi River. Streamflow conditions are also affecting spatial structure within the population by eliminating access to tributary habitat. This project will address this limiting factor for both ESA-listed species: Lemhi Population of the Salmon Major Population Group of the Snake River steelhead Distinct Population Segment and Chinook salmon Evolutionarily Significant Unit.


Metric Completed Originally

Funding Details

Report Total:$135,733

Project Map


Lower Pratt Creek Access    

  • Worksite Identifier: Lower Pratt Creek Access
  • Start Date: 04/04/2016
  • End Date: 08/31/2017
Area Description
Salmon Subbasin, Lemhi 4th field HUC, # 17060204, Pratt Creek Watershed

Location Information

  • Basin: Salmon (170602)
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: Idaho
  • Recovery Domain: Snake River
  • Latitude: 45.079712
  • Longitude: -113.70463


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




  • C.0 Salmonid Habitat Restoration and AcquisitionY (Y/N)
    •      . . C.0.a Habitat restoration and acquisition funding 135,733.00
    •      . . C.0.b Length of stream treated/protected .20
    •      . . C.0.c
      Project identified in a Plan or Watershed Assessment
      Draft ESA Recovery Plan for Idaho Snake River Spring/Summer Chinook Salmon and Snake River Steelhead Populations, Author: NMFS, 2015, Portland, OR Ecovista, Salmon Subbasin Management Plan, 2004, NPPC,Portland, OR
    •      . . C.0.d.1 Project Monitoring (LOV)
    •      . . C.0.d.2 Monitoring Location (LOV)
    •      . . C.3 Instream Flow ProjectY (Y/N)
      •      . . . . C.3.a Instream Flow Funding 135,733.00
      •      . . . . C.3.b Length of stream 'protected' for adequate flow .20
      •      . . . . C.3.c Change in water flow.41 (cfs)
      •      . . . . C.3.d.1 Water flow gaugesY (Y/N)
        •      . . . . . . C.3.d.2 Number of water flow gauges 1
      •      . . . . C.3.e.1 Irrigation practice improvementY (Y/N)
        •      . . . . . . C.3.e.2 Acre feet of water conserved per year297 (Acre feet)
        •      . . . . . . C.3.e.4 Initial start date of action or agreement05/15/2017 (mm/dd/yyyy)
        •      . . . . . . C.3.e.5 Final end date of action or agreement05/15/2037 (mm/dd/yyyy)