Tucannon Complexity & Connectivity (PA-18)

Salmonid Habitat Restoration and Acquisition

Instream Habitat Riparian Habitat
Project ID16-2091 R
Recovery DomainsInterior Columbia
Start Date12/08/2016
End Date03/31/2021
Year2016
StatusCompleted
Last Edited04/19/2022
 
1 - 1

Description    


The Confederated Tribes of the Umatilla Indian Reservation used grant funds to restore floodplain connectivity and channel complexity on the Tucannon River in Columbia County, WA. The project is situated within the priority restoration reach for the Endangered Species Act threatened Snake River spring Chinook and summer steelhead. The goals of this project were to increase channel complexity and restore floodplain connectivity, through the placement of large wood and the excavation of short pilot channels to reconnect existing side channels.

Key pieces of wood per channel width increased. Boulders were installed as individual in-stream habitat elements. A small pushup berm was removed and three pilot channels, were excavated. The three pilot channels have subsequently become perennial side-channels. A fourth channel, designed to increase connectivity between an active side-channel and an on-site spring channel, was created to increase flow in the spring channel and increase juvenile salmonid rearing habitat. Willow stakes were planted in all areas where the soil conditions were suitable for efficient insertion into the water table.

Major flooding decreased the amount of space available for planting. This is the reason why the originally proposed 20 acres of riparian area treated was reduced to 13 acres - 8 acres of riparian area that had been proposed for planting was converted to perennial side-channel rearing habitat after the flood event.

Project Benefit    


The goals of this project are to increase channel complexity and restore floodplain connectivity, through the placement of LWD and the excavation of short pilot channels to reconnect existing side channels. This work provides winter refugia for steelhead and Chinook.

Accomplishments

Metric Completed Originally
Proposed
Instream Habitat
  Stream Miles Treated 1.15 1.15
Riparian Habitat
  Stream Miles Treated 1.10 1.10
  Acres Treated 13.0 20.0

Funding Details

SourceFunds
State$396,736
Other$54,300
In-Kind Donated Labor$38,718
Report Total:$489,754


Project Map



Worksites

1-PA-18 WDFW    


  • Worksite Identifier: 1-PA-18 WDFW
  • Start Date:
  • End Date:
Area Description

No Area Description data was found for this worksite.

Location Information

  • Basin: Lower Snake
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: Washington
  • Recovery Domain: Interior Columbia
  • Latitude: 46.38558998
  • Longitude: -117.696398

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 489,753.71
    •      . . C.0.b Length of stream treated/protected 1.15
    •      . . 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.4 Instream Habitat ProjectY (Y/N)
      •      . . . . C.4.a Instream Habitat Funding 343,737.12
      •      . . . . C.4.b Total length of instream habitat treated 1.15
      •      . . . . 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 1.15
        •      . . . . . . C.4.c.4 Miles of off-channel stream created through channel reconfiguration and connectivity 3.57
        •      . . . . . . C.4.c.5 Acres of off-channel or floodplain connected through channel reconfiguration and connectivity 8.7
        •      . . . . . . 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 1.15
        •      . . . . . . C.4.d.5 Pools expected to be created through channel structure placement 40
        •      . . . . . . C.4.d.7 Number of structures placed in channel 80
      •      . . C.5 Riparian Habitat ProjectY (Y/N)
        •      . . . . C.5.a Riparian Habitat Funding 146,016.59
        •      . . . . C.5.b.1 Total riparian miles streambank treated 1.10
        •      . . . . C.5.b.2 Total Riparian Acres Treated 13.0
        •      . . . . C.5.c.1 Riparian plantingY (Y/N)
          •      . . . . . . C.5.c.2
            Species of plants planted in riparian
            1) Amelanchier alnifolia 2) Asclepsia speciose 3) Crataegus douglasii 4) Holodiscus discolor 5) Physocarpus malvaceous 6) Pinus ponderosa 7) Prunus virginiana 8) Sambucus cerulean 9) Symphoricarpos alba 10) Populus balsamifera 11) Betula occidentalis
          •      . . . . . . C.5.c.3 Acres planted in riparian 13.0
          •      . . . . . . C.5.c.4 Miles of streambank treated with riparian planting