River Forest Creek - Willamette Confluence Large Wood Placement
Project Overview
Basics
River Forest Creek - Willamette Confluence Large Wood Placement
Implementation
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.
2023
2024
2025
12/18/2024
Location
Organizations
Contacts
Amy van Riessen - North Clackamas Watersheds Council (NCWC) (amy@ncwatersheds.org)
Performance Measures
Expected Performance Measures
| Large Wood Placement | Placement Density: > 25 yrd^3/1000 ft Placement Location: Floodplain | 250 lf |
| Large Wood Placement | Placement Density: > 25 yrd^3/1000 ft Placement Location: In Channel | 250 lf |
| Riparian / Floodplain Invasive Species Removal Area | Side of stream / river: Both sides of stream | 0.3 acres |
| Riparian / Floodplain Invasive Species Removal Length | Side of stream / river: Both sides of stream | 250 lf |
| Riparian / Floodplain Native Planting Area | Side of stream / river: One side | 0.15 acres |
| Riparian / Floodplain Native Planting Channel Length | Side of stream / river: One side of stream Width of planting area (meters from bank): 20 - 30 meters | 250 lf |
Reported Performance Measures
| Large Wood Placement | |||
|---|---|---|---|
| Placement Density | Placement Location | 2024 | Units |
| > 25 yrd^3/1000 ft | Floodplain | 100 | lf |
| > 25 yrd^3/1000 ft | In Channel | 250 | lf |
| Total | 350 | lf | |
| Riparian / Floodplain Invasive Species Removal Area | ||
|---|---|---|
| Side of stream / river | 2024 | Units |
| Both sides of stream | 0.3 | acres |
| Total | 0.3 | acres |
| Riparian / Floodplain Invasive Species Removal Length | ||
|---|---|---|
| Side of stream / river | 2024 | Units |
| Both sides of stream | 250 | lf |
| Total | 250 | lf |
| Riparian / Floodplain Native Planting Area | ||
|---|---|---|
| Side of stream / river | 2024 | Units |
| Two sides | 0.3 | acres |
| Total | 0.3 | acres |
| Riparian / Floodplain Native Planting Channel Length | |||
|---|---|---|---|
| Side of stream / river | Width of planting area (meters from bank) | 2024 | Units |
| One side of stream | 20 - 30 meters | 250 | lf |
| Total | 250 | lf | |
Financials
Budget
| Comment: | Increases in the project budget due to inflation required us to successfully pursue a last minute grant to the Department of State Lands Submerged Lands Program. |
|---|
Reported Expenditures
| 2023 | 2024 | 2025 | Total | |
|---|---|---|---|---|
| Meyer Memorial Trust (MMT) | $0.00 | $0.00 | $0.00 | $0.00 |
| Oak Lodge Water Services (Oak LWS) | $0.00 | $0.00 | $0.00 | $0.00 |
| OWEB Focused Investment Partnership (FIP) (OWEB) | $0.00 | $0.00 | $0.00 | $0.00 |
| Spirit Mountain Community Fund (Spirit Mountain Community Fund) | $0.00 | $0.00 | $0.00 | $0.00 |
| Grand Total | $0.00 | $0.00 | $0.00 | $0.00 |
| Note: | None provided |
|---|
Focal Species
Focal Species
Enhancement of high flow refugia and cover for junveille Coho during migration and rearing in the Willamette, benefitting the Clackamas Population as they move downstream in early fall-winter flows and remain in the basin for 14 months before migrating to the ocean. During this time this habitat will be utilized.
Juvenille fall chinook will benefit from confluence large wood during rearing in the Willamette where inchannell refugia opportunities are mimimal (USGS, 2018).
Increased habitat complexity and pools, and sandy substrated at tributary junctions will magnify habitat for ammocetes. As nearby Kellogg Creek is currently blocked by Kellogg Dam, additional habitat is critical. Increased complexity will reduce dowstream flushing during high flow events.
Spring Chinook from the Clackamas, Molalla, Santiam and McKenzie rivers rearing in the lower Willamette rivers; subyearlings spend up to 14 months rearing in in the lower Willamette and are expected to benefit from confluence and tributary complexity established from this project.
Clackamas, Mollala, Santiam, and McKenzie winter steelhead migrate through the lower WIllamettee, where habitat is critcally limited and best created a tributary junctions in the Oswego stretch of the Willamette River
Project Types
Project Types
Placement of large wood structures, ehnanced pools to increase channel complexity at the confluence of the Willamette River and River Forest Creek, with addtional native species revegetation of riparian zones. Will increase landowner understanding of the importance of channel complexity, important inan area with a long history of oversimplifies streams and a subsequent misunderstanding of how a properly functioning stream should be structured.
FIP Bienniums
FIP Bienniums
Project Details
Attachments
Basis of Design Memo and Plans
- Uploaded On
- 12/18/2024
- File Type
- Description
- The basis of design memo includes the project design background, a 90% plan set and cost estimate, and the hydrology analysis.
Design Concept Lower River Forest Creek
- Uploaded On
- 10/5/2020
- File Type
- Description
- Preliminary Large Wood Concept Design
No attachments
Notes
No Notes entered.