River Forest Creek - Willamette Confluence Large Wood Placement
Limiting Factor
Degraded Channel Structure and Complexity
Lead Implementer
North Clackamas Watersheds Council
Funders
Meyer Memorial Trust, Oak Lodge Water Services , Oregon Department of State Lands - Submerged Lands Program, Oregon Watershed Enhancement Board, Spirit Mountain Community Fund - Confederated Tribes of the Grand Ronde Community of Oregon
Project Primary Contact
Amy van Riessen (amy@ncwatersheds.org)
Project Stage
Implementation
Duration
2024 - 2025
Degraded Channel and Riparian Areas
Degraded Channel Structure and Complexity
The project includes installation of a complex log structure on the Willamette River at the confluence of River Forest Creek, that is intended to dissipate energy from boats waves while creating local scour and escape cover for fish. We will also construct a series of boulder weirs with rootwads incorporated in each pool to increase habitat complexity. Invasive plants within the riparian corridor will be removed and native species planted. These structures will provide cover and high flow refugia for 9 different populations of juvenile salmon and trout during migration and rearing in the Willamette River.
Key Accomplishments
- Large Wood Placement: 350.00 lf
- Riparian / Floodplain Invasive Species Removal Area: 0.30 acres
- Riparian / Floodplain Invasive Species Removal Length: 250.00 lf
- Riparian / Floodplain Native Planting Area: 0.30 acres
- Riparian / Floodplain Native Planting Channel Length : 250.00 lf
Focal Species
- Coho
- Fall Chinook
- Pacific Lamprey
- Spring Chinook
- Steelhead
Project Types
- Restoration
FIP Bienniums
- FIP Biennium 2 work plan
Completed boulder weirs incorporated large rootwads into the structures to provide instream cover for rearing juvenile fish.
Location
Expenditures
No expenditures provided
Photos
Existing confluence lacking cover habitat; large wood propopsed for both banks at this location (Timing: Before)
English Ivy on the south bank that will be removed and revegetated. The Council and landowner have revegetated the N. bank. (Timing: Before)
River Forest Creek at site of large wood placement (Timing: Before)
Confluence where logjam will be located. (Timing: Before)
Fish block netting and turbidity curtain installed during construction. (Timing: During)
During construction of the logjam, vertical piles are pinned to buried footer logs. This provides structure stability during high flow events. (Timing: During)
Construction of weirs and associated rootwads in the River Forest Creek dewatered channel. (Timing: During)
Completed logjam functioning in higher winter flows. (Timing: After)
Project last updated 12/18/2024