Lower North Scappoose Stream Enhancement

Salmonid Habitat Restoration and Acquisition

Instream Habitat Riparian Habitat
Project IDOWEB 219-3000-16345
Recovery DomainsWillamette R. - Lower Columbia
Start Date10/19/2018
End Date05/24/2021
Year2016
StatusCompleted
Last Edited07/21/2022
 
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Description    


The Lower North Scappoose Stream Enhancement Project enhanced habitat on North Scappoose Creek by installing eight large-wood structures for salmon habitat and completing a bank lay-back along approximately 50 feet of bank for stabilization. The project also removed invasive vegetation and replanted with native species on approximately 2.5 acres adjacent to the stream. Channel reconnection/configuration was incorrectly reported at proposed as connecting the floodplain was a desired outcome of the large wood placement and has been removed from reporting. Additionally, stream bank stabilization was not reported at proposed but should have been as it was always intended to be a component of this project. Project changes include a reduction in the total length of instream treated as less channel structure placement was done than proposed. The total riparian acres treated were reduced from 3.4 to 2.5 due to landowner-requested changes between proposal and implementation and several areas in the proposed planting area had existing natural vegetation in good condition so additional planting was not needed.

Project Benefit    


This project benefits rearing migration and spawning activities of LCR Coho and Fall Chinook salmon, and LCR Winter Steelhead by improving stream process and function, and water quality along a 0.3 mile reach of mainstem creek:
• Increase access to slower-water habitats: lower the streambank to widen the floodplain.
• Improve habitat: increase in-channel complexity with large wood structures that will create pools, provide high-flow refugia and escape cover, retain gravel, and protect gravel-bars.
• Improve water quality: reduce erosional forces and impact of high-flow events on streambanks, and increase hyporheic conditions at low flows.
• Reduce stream temperatures through retention of cooler seasonal flow and native riparian vegetation.
• Restore riparian complexity and diversity by removing invasive species and planting over 6,000 native species. This will filter surface runoff and provide a future LWD recruitment source.

This project also provides potential benefits to UWR spring Chinook by providing cooler water refuge habitat above Scappoose Bay, and protecting and enhancing cooler water inputs to stream segments from Scappoose Bay to these lower creek reaches.

Accomplishments

Metric Completed Originally
Proposed
Instream Habitat
  Stream Miles Treated .10 .30
Riparian Habitat
  Stream Miles Treated .60 .50
  Acres Treated 2.5 3.4

Funding Details

SourceFunds
PCSRF$83,121
Other$87,103
In-Kind Donated Labor$2,000
Report Total:$172,224


Project Map



Worksites

20200347    


  • Worksite Identifier: 20200347
  • Start Date:
  • End Date:
Area Description

No Area Description data was found for this worksite.

Location Information

  • Basin: Willamette
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: Oregon
  • Recovery Domain: Willamette R. - Lower Columbia
  • Latitude: 45.77462872
  • Longitude: -122.89343823

ESU

  • Lower Columbia River Coho Salmon ESU
  • Lower Columbia River Steelhead DPS
  • Lower Columbia River Chinook Salmon ESU

Map

Photos

Metrics

Metrics
  • C.0 Salmonid Habitat Restoration and AcquisitionY (Y/N)
    •      . . C.0.a Habitat restoration and acquisition funding 172,223.98
    •      . . C.0.b Length of stream treated/protected .30
    •      . . C.0.c
      Project identified in a Plan or Watershed Assessment
      National Marine Fisheries Service Northwest Region, 2013-06-01, ESA Recovery Plan for Lower Columbia River Coho Salmon, Lower Columbia River Chinook Salmon, Columbia River Chum Salmon, and Lower Columbia River Steelhead; Oregon Department of Fish and Wildlife, 2010-08-01, Lower Columbia River Conservation and Recovery Plan for Oregon Populations of Salmon and Steelhead;
    •      . . 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 147,541.98
      •      . . . . C.4.b Total length of instream habitat treated .10
      •      . . . . 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 .10
        •      . . . . . . C.4.d.5 Pools expected to be created through channel structure placement 7
        •      . . . . . . C.4.d.7 Number of structures placed in channel 8
      •      . . . . 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 .01
      •      . . C.5 Riparian Habitat ProjectY (Y/N)
        •      . . . . C.5.a Riparian Habitat Funding 24,682.00
        •      . . . . C.5.b.1 Total riparian miles streambank treated .60
        •      . . . . C.5.b.2 Total Riparian Acres Treated 2.5
        •      . . . . C.5.c.1 Riparian plantingY (Y/N)
          •      . . . . . . C.5.c.2
            Species of plants planted in riparian
            Grand Fir, Vine Maple, Big leaf Maple, White Alder, Red Alder, Douglas Fir, Black Hawthorne, Cascara, Western Crabapple, Valley Ponderosa Pine, Black Cottonwood, Bitter Cherry, Choke Cherry, Oregon White Oak, Western Red Cedar, Mountain Hamlock; Western Serviceberry, Tall Oregon Grape, Red Osier Dogwood, Oceanspray, Black Twinberry, Indian Plum, Mockorange, Pacific Ninebark, Red-flowering Currant, Baldhip Rose, Nootka Rose, Swamp Rose, Blackcap Raspberry, Thimbleberry, Salmonberry, Willow sp, Blue elderberry, red Elderberry, Spirea, Snowberry, sword fern, Meadow Checkermallow, Douglas Aster
          •      . . . . . . C.5.c.3 Acres planted in riparian 2.5
          •      . . . . . . C.5.c.4 Miles of streambank treated with riparian planting .60
        •      . . . . C.5.h.1 Riparian plant removal/controlY (Y/N)
          •      . . . . . . C.5.h.2
            Species of plants treated/removed in riparian
            Blackberry, Reed Canary Grass, Knotweed, English Ivy
          •      . . . . . . C.5.h.3 Acres of riparian treated for plant removal/control 2.5
          •      . . . . . . C.5.h.4 Miles of streambank treated for riparian plant removal/control .60