Johnson Creek Confluence Habitat Enhancement Project
This Project has an Update in progress.
Project Overview
Basics
Johnson Creek Confluence Habitat Enhancement Project
Planning/Design
The confluence of Johnson Creek with the Willamette River serves as important salmon habitat not only for Johnson Creek fish but also those runs destined for the upper Willamette as well. Because of its cooler water temperatures, the lower 1.5 miles of Johnson Creek is used by migrating spring Chinook as cold water refugia. In 2011 JCWC added 150 pieces of large wood to the confluence. Since that time half the wood has worked its way free and floated downstream. We now know more about stress forces and eddies in the area. This phase 2 project will supplement the phase I work and use more advanced installation techniques to ensure the structures perform and stay in place.
2022
2024
2024
3/27/2023
Location
Organizations
| Funders | |
| Lead Implementer | |
| Other Partners | North Clackamas Watersheds Council, City of Milwaukie, North Clackamas Parks and Recreation Department. |
Contacts
Elizabeth Brosig - Johnson Creek Watershed Council (JCWC) (elizabeth@jcwc.org)
Performance Measures
Expected Performance Measures
| Biennium Status | Has the project been implemented? : No Select the Biennium Relevant for your project : Proposed Biennium 3 | 2,024 |
| Large Wood Placement | Placement Density: > 25 yrd^3/1000 ft Placement Location: In Channel | 900 lf |
| Riparian / Floodplain Native Planting Channel Length | Side of stream / river: Both sides of stream Width of planting area (meters from bank): 0 - 10 meters | 500 lf |
Reported Performance Measures
Reported Performance Measures are not relevant for Projects in the Planning/Design stage.
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
Large wood structures will provide cold water rearing and resting habitat to adult and juvenile chum salmon. The large wood will be installed at a density over 25 cubic yards per 1000 linear feet of stream, meeting Oregon Department of Fish and Wildlife's Recovery Plan criteria for wood placement density.
Large wood structures will provide cold water rearing and resting habitat to adult and juvenile coho salmon. The large wood will be installed at a density over 25 cubic yards per 1000 linear feet of stream, meeting Oregon Department of Fish and Wildlife's Recovery Plan criteria for wood placement density.
Large wood structures will provide cold water rearing and resting habitat to adult and juvenile fall Chinook salmon. The large wood will be installed at a density over 25 cubic yards per 1000 linear feet of stream, meeting Oregon Department of Fish and Wildlife's Recovery Plan criteria for wood placement density.
Large wood structures will provide cold water rearing and resting habitat to adult and juvenile Pacific lamprey. The large wood will be installed at a density over 25 cubic yards per 1000 linear feet of stream, meeting Oregon Department of Fish and Wildlife's Recovery Plan criteria for wood placement density.
Large wood structures will provide cold water rearing and resting habitat to adult and juvenile spring Chinook salmon. The large wood will be installed at a density over 25 cubic yards per 1000 linear feet of stream, meeting Oregon Department of Fish and Wildlife's Recovery Plan criteria for wood placement density.
Large wood structures will provide cold water rearing and resting habitat to adult and juvenile steelhead. The large wood will be installed at a density over 25 cubic yards per 1000 linear feet of stream, meeting Oregon Department of Fish and Wildlife's Recovery Plan criteria for wood placement density.
Project Types
Project Types
All affected landowners and adjacent landowners have been contacted about the project. We've discussed the project at length many times with each and although there is no formal agreements signed yet, the landowners have expressed support of the project and we plan to obtain formal agreements once the design is further developed.
This project is an instream habitat restoration project that will result in increased habitat complexity in the lowest reach of Johnson Creek and its confluence with the Willamette River by installing log structures, removing invasive vegetation, and planting native trees and shrubs.
FIP Bienniums
FIP Bienniums
Project Details
Attachments
CP_ProposalEvaluationResponses_B3_JCWC_ConfluenceHabitatEnhancement
- Uploaded On
- 10/3/2022
- File Type
- Description
- This document contains the responses to the Clackamas Partnership Biennium 3 Fatal Flaw questions and Evaluation Criteria questions.
Conceptual Design Alternatives
- Uploaded On
- 11/8/2022
- File Type
- Description
- JCWC hired Wolf Water Resources to produce two conceptual designs for this project so that we could present these alternatives to stakeholders and gain their feedback to help inform what design we will move forward with.
Hydraulic Model Results Figures
- Uploaded On
- 11/8/2022
- File Type
- Description
- JCWC also asked Wolf Water Resources to complete a hydraulic model for the project area and evaluate hydraulic conditions for each conceptual design alternative. We are hoping that these hydraulic model results will help us with stakeholder discussions and to inform the design moving forward.
Conceptual Design Alternative Cost Estimates
- Uploaded On
- 11/8/2022
- File Type
- Description
- Wolf Water Resources also produced cost estimates for the various design elements included in the design alternatives.
Site Assessment and Alternatives Analysis
- Uploaded On
- 11/8/2022
- File Type
- Description
- Wolf Water Resources completed a site analysis of the project area and an alternatives analysis comparing the conceptual design alternatives.
Letter of Support from the City of Milwaukie
- Uploaded On
- 11/8/2022
- File Type
- Description
No attachments
Notes
No Notes entered.
External Links
No External Links entered.