Lower Clackamas/ Eagle Creek Confluence Side Channel Reconnection
Project Overview
Basics
Lower Clackamas/ Eagle Creek Confluence Side Channel Reconnection
Completed
The Lower Clackamas River watershed encompasses 15,428 acres of mostly industrial, urban, and residential development. The project would reconnect multiple historic side channels, add large wood structures, improve native plant densities and manage invasive species at the confluence of Eagle Creek and the Clackamas mainstem. This stretch of the Lower Clackamas would have been highly complex with multiple channels but over the years the river has been confined to a single channel.
2020
2021
2024
4/26/2024
Location
Organizations
| Funders | |
| Lead Implementer |
Contacts
Isaac Sanders - Clackamas River Basin Council (CRBC) (isaac@clackamasriver.org)
Performance Measures
Expected Performance Measures
| Large Wood Placement | Placement Density: > 25 yrd^3/1000 ft Placement Location: In Channel | 2,250 lf |
| Side Channel Habitat Increase | Inundation frequency: Equal or more frequent than annual | 1,400 lf |
Reported Performance Measures
| Large Wood Placement | ||||||
|---|---|---|---|---|---|---|
| Placement Density | Placement Location | Total | 2022 | 2021 | 2020 | Units |
| > 25 yrd^3/1000 ft | In Channel | 2,550 | N/A | 2,550 | N/A | lf |
| Total | 2,550 | 0 | 2,550 | 0 | lf | |
| Riparian / Floodplain Invasive Species Removal Area | |||||
|---|---|---|---|---|---|
| Side of stream / river | Total | 2022 | 2021 | 2020 | Units |
| Both sides of stream | 6 | 2 | 2 | 2 | acres |
| Total | 6 | 2 | 2 | 2 | acres |
| Riparian / Floodplain Native Planting Area | |||||
|---|---|---|---|---|---|
| Side of stream / river | Total | 2022 | 2021 | 2020 | Units |
| Two sides | 2 | 2 | N/A | N/A | acres |
| Total | 2 | 2 | 0 | 0 | acres |
| Side Channel Habitat Increase | |||||
|---|---|---|---|---|---|
| Inundation frequency | Total | 2022 | 2021 | 2020 | Units |
| Equal or more frequent than annual | 2,550 | 0 | 2,550 | 0 | lf |
| Total | 2,550 | 0 | 2,550 | 0 | lf |
Financials
Budget
| Comment: | None provided |
|---|
Reported Expenditures
| 2020 | 2021 | 2022 | 2023 | 2024 | Total | |
|---|---|---|---|---|---|---|
| OWEB Focused Investment Partnership (FIP) (OWEB) | $258,422.38 | $21,494.00 | $13,887.00 | $18,193.00 | $5,675.00 | $317,671.38 |
| PGE Funding (PGE) | $296,186.94 | $3,652.57 | $3,430.67 | $0.00 | $0.00 | $303,270.18 |
| Grand Total | $554,609.32 | $25,146.57 | $17,317.67 | $18,193.00 | $5,675.00 | $620,941.56 |
| Note: | None provided |
|---|
Focal Species
Focal Species
Increased off channel habitat, large wood structures and riparian plantings will benefit all life stages.
Increased off channel habitat, large wood structures and riparian plantings will benefit all life stages.
Increased off channel habitat, large wood structures and riparian plantings will benefit all life stages.
Increased off channel habitat, large wood structures and riparian plantings will benefit all life stages.
Project Types
Project Types
FIP Bienniums
FIP Bienniums
No FIP Bienniums set for this Project.
Project Details
Attachments
As built plan set
- Uploaded On
- 4/15/2024
- File Type
- Description
Photopoints, pre-during and post
- Uploaded On
- 4/15/2024
- File Type
- Description
No attachments
Notes
| 12/05/2017 1:33 PM | Zachary Bergen | Project Prioritization: 1.) Focal species affected: - Three or more species 2.) Limiting factors addressed: - Addresses two or more primary and at least one secondary 6e 2. Physical habitat quality: Isolated side channels and off-channel habitats. 6e 3. Physical habitat quality: Degraded channel structure and complexity. 6e 4. Physical habitat quality: Degraded floodplain connectivity and function. 6e 1. Physical habitat quality: Degraded riparian areas and large wood recruitment. 3.) Project protection benefits: - Full protection form Oregon State Parks 4.) Processed-based restoration - Comprehensive restoration- Project restores natural processes that create and maintain habitats and biota, addressing the root causes of degradation. Restoration actions would include wetland enhancement, riparian restoration, the creation of side channels, invasive species removal, and native plantings. 5.) Threats addressed: -Climate change resiliency- Restoration partially or fully addresses climate change resiliency and the project focuses on key habitats that provide resiliency. - Urbanization/development impacts- Restoration actions partially address habitat and watershed processes associated with current and future watershed urbanization. 6.) Project size and scale: - Stream projects (linear scale)- 1/2 to 3/4 mile in length - Floodplain/ riparian area extent (lateral extent)- Floodplain/riparian activities improve degraded conditions and restore natural processes and channel meander corridors, such as complete restoration of the functional riparian area. 7.) Project readiness, constraints, and risks: -Project readiness- The project's conceptual design does consider other factors such as constructability and how project effectiveness will be demonstrated. -Project constraints and risks- There are few or no feasibility constraints or risks that may limit the overall project success. 8.) Outreach, landowner relationship, and socio-economic benefits: -An enthusiastic landowner who is influential in the community and supports tours or outreach activities on their property. |
External Links
No External Links entered.