Lower Clackamas Upper Feldheimer Side Channel Reconnection
Project Overview
Basics
Lower Clackamas Upper Feldheimer Side Channel Reconnection
Deferred
The upper Feldheimer site (RM 18.8) is an existing side channel that would provide critical rearing habitat for juvenile salmonids in a key reach of the lower Clackamas River. The project includes reestablishment of hydrologic connection via excavation at the inlet(s) and installation of an apex along the margin of Clackamas mainstem. Improving the quality and complexity of habitat would provide year-round benefits in a zone of decent water temperatures and key rearing location downstream of the River Mill Dam complex.
2054
2054
3/15/2024
Location
Organizations
| Lead Implementer |
Contacts
Isaac Sanders - Clackamas River Basin Council (CRBC) (isaac@clackamasriver.org)
Performance Measures
Expected Performance Measures
No expected Performance Measures set for this Project.
Reported Performance Measures
No annual Performance Measure accomplishments entered for this Project.
Financials
Budget
| Comment: | None provided |
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Reported Expenditures
No Expenditures have been reported for this Project.
| Note: | None provided |
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Focal Species
Focal Species
Cooler water temps and large wood loading in the side channel will benefit Coho who like to remain in freshwater for up to 2 years before migrating downstream. Substantial benefit to Coho from areas upstream of North Fork Dam. The increased large wood. off channel habitats, improved habitat complexity and floodplain function in side channels will provide significant rearing opportunities for multiple species and life history stages of juvenile fish.
Potential to provide significant rearing opportunities for multiple life stages of juvenile fish. Project will increase flow in a side channel of the Clackamas that has potential to provide spawning habitat for fall Chinook. The reconnected side channel will also provide holding and migrating areas for adult fish
Increased off channel habitat, large wood structures and riparian plantings will benefit all life stages. Off channel and slow depositional areas are important rearing areas for ammocetes that need soft substrates to burrow into and filter feed.
Access to the side channel with the additional large wood will provide significant rearing opportunities for multiple species and life history stages of juvenile fish as they migrate down the river.
Summer and winter steelhead will make use of this side channel with excellent potential to provide significant rearing opportunities for multiple life stages.
Project Types
Project Types
Addresses both reach-and site-specific limiting factors. The project is in a key reach for enhancing cool water access to juvenile rearing salmonids by creating sustainable year-round flows in the side channel. Large wood placement will be used to encourage scouring flows to increase pool depth and habitat available for mid-summer rearing. Riparian enhancement will also occur. This is an important project in a section of river that historically was more complex but has been impacted by dikes and other human-caused impacts.
FIP Bienniums
FIP Bienniums
Project Details
Attachments
Project Fact Sheet
- Uploaded On
- 10/28/2020
- File Type
- Description
- The fact sheet provides a quick overview of project elements, performance measures, cost drives and assumptions.
Upper Feldheimer Side Channel Proposal Evaluation
- Uploaded On
- 10/3/2022
- File Type
- Word (DOCX)
- Description
No attachments
Notes
| 12/05/2017 1:40 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 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: - Minimal protection from private landowners. 4.) Processed-based restoration -Partial restoration- Project partially addresses restoring natural processes. 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)- Project includes some floodplain/riparian activities. 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 moderate feasibility constraints or risks that may limit overall project success. 8.) Outreach, landowner relationship, and socio-economic benefits: -Unknown if landowners support tours or outreach activities on their properties. |
External Links
No External Links entered.