Lower Lemhi Bank Stabilization

Salmonid Habitat Restoration and Acquisition

Project ID	019 08 SA
Recovery Domains	Snake River
Start Date	02/16/2010
End Date	09/30/2012
Year	2008
Status	Completed
Last Edited	05/08/2024

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Description

The Idaho Department of Fish and Game began permitting, consultation, engineering, contracting, and construction in 2009. Final construction involved the stabilization of 200 feet of the degraded river bank at the work site. Root wads were trenched into the stream bank perpendicular to the river flow, secured by rock and cable, and tied together. River banks were then backfilled with rock and local material, sloped into the floodplain, and covered with topsoil to promote growth of new vegetation.

Following the construction of the banks, jack fence was installed to exclude livestock and protect new construction and plantings in the riparian corridor at the project site and along the length of the property.

Project Benefit

The project will result in improved rearing habitat for ESA listed juvenile salmon, steelhead and bulltrout. It will protect and enhance spawning habitat for steelhead in the lower river. The benefits will include improved stream temperatures, improved native vegetation, enhanced and improved pools, and reduction of sediment and nutrient input.

Accomplishments

Metric

Completed

Originally
Proposed

Instream Habitat

Stream Miles Treated

.04

.50

Riparian Habitat

Stream Miles Treated

.50

Acres Treated

2.0

Source

Funds

PCSRF

$40,702

State

$13,595

Report Total:

$54,297

Worksites

Webb Property

Worksite Identifier: Webb Property
Start Date: 02/16/2010
End Date: 06/30/2012

Area Description

No Area Description data was found for this worksite.

Location Information

Basin: Salmon (170602)
Subbasin:
Watershed:
Subwatershed:

State: Idaho
Recovery Domain: Snake River
Latitude: 45.06833
Longitude: -113.705

ESU

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

Map

Photos

Metrics

C.0 Salmonid Habitat Restoration and AcquisitionY (Y/N)

. . C.0.a Habitat restoration and acquisition funding 54,297.00
. . C.0.b Length of stream treated/protected .50

. . C.0.c

Project identified in a Plan or Watershed Assessment
Salmon Subbasin Management Plan (2004), Lemhi Subbasin Review (2004), Upper Salmon Basin Watershed Project, Stream Habit Inventory Report, Lemhi River (2002, Model Watershed Plan, Idaho Soil Conservation Commission (1995), SRBA Water Rights Settlement and Lemhi Habitat Framework (2005)

. . C.0.d.1 Project Monitoring (LOV)
. . C.0.d.2 Monitoring Location (LOV)

. . C.0.d.3

Monitoring text (from Phase I)

Monitoring will begin at the onset of construction. A formal survey of existing conditions and desired future conditions will be completed. A photo record will be maintained and visual inspections conducted by the landowner, or their designee, in order to document project development and effectiveness. The photo records will be maintained until bank stabilization measures are completed and new vegetation is fully established.

. . C.4 Instream Habitat ProjectY (Y/N)
- . . . . C.4.a Instream Habitat Funding 32,855.00
- . . . . C.4.b Total length of instream habitat treated .04
- . . . . 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 .04
- . . C.5 Riparian Habitat ProjectY (Y/N)
  - . . . . C.5.a Riparian Habitat Funding 21,442.00
  - . . . . C.5.b.1 Total riparian miles streambank treated .50
  - . . . . C.5.b.2 Total Riparian Acres Treated 2.0
  - . . . . C.5.c.1 Riparian plantingY (Y/N)
    - . . . . . . C.5.c.2
      Species of plants planted in riparian
      
      Salix spp., Schedonorus phoenix, Alopecurus arundinaceus, Phalaris arundinacea, s trachycaulus, and Trifolium hybridum
    - . . . . . . C.5.c.3 Acres planted in riparian 2.0
  - . . . . C.5.d.1 FencingY (Y/N)
    - . . . . . . C.5.d.2 Miles of fence along stream .50
    - . . . . . . C.5.d.3 Acres of riparian area protected by fencing 2.0