South Fork Clackamas River Habitat Restoration Project
Limiting Factor
Degraded Channel Structure and Complexity
Lead Implementer
U.S. Forest Service
Funders
Oregon Watershed Enhancement Board, U.S. Forest Service
Other Organizations
Clackamas River Basin Council
Project Primary Contact
Isaac Sanders (isaac@clackamasriver.org)
Project Stage
Implementation
Duration
2023 - 2026
Degraded Channel and Riparian Areas
Degraded Channel Structure and Complexity
After the devastating fires of 2020 the Mt Hood NF working with CRBC added 50 trees killed by during the fires to the lower 1000' of the South Fork Clackamas River. The project included constructing one 15 log apex log structure near the confluence of the SFK and mainstem Clackamas and tipping another 35 trees into the river. The largest tree was over 5 feet in diameter and 200 feet tall. Areas disturbed by the fire were treated for invasive weeds and replanted. Adding instream woody debris is a common strategy to increase habitat complexity, or alter the stream channel by reducing water velocity and increasing stream depth and pool frequency
Key Accomplishments
- Large Wood Placement: 1,000.00 lf
- Riparian / Floodplain Invasive Species Removal Area: 20.00 acres
- Riparian / Floodplain Native Planting Area: 20.00 acres
Focal Species
- Bull Trout
- Coho
- Pacific Lamprey
- Spring Chinook
- Steelhead
Project Types
- Restoration
FIP Bienniums
- FIP Biennium 1 work plan
Looking downstream at upper log jam, note man on the bank in upper right of photo is over 6' tall
Location
Expenditures
Expenditures by Fund to Date: $59,397.74
OWEB Focused Investment Partn... (OWEB): $25,429
USFS General Fund (USFS): $33,968
Photos
Photopoint a looking downstream (Timing: Before)
Photopoint B looking downstream (Timing: Before)
Photopoint C looking upstream (Timing: Before)
Photopoint D looking downstream (Timing: Before)
SFK site before project from drone (Timing: Before)
Log jam under construction at South Fork Clackamas (Timing: During)
DFK Clackamas project during construction (Timing: During)
SFK site during project from drone (Timing: During)
Trees tipped in to SFK Clackamas (Timing: After)
Photopoint B looking downstream post (Timing: After)
Photopoint C looking upstream post (Timing: After)
Photopoint D looking downstream post (Timing: After)
SFK Clackamas tipped trees (Timing: After)
SFK Clackamas looking downstream at new over 6 foot deep pool formed by tipped trees (Timing: After)
Looking up SFK Clackamas constructed apex jam on left tipped trees in distance (Timing: After)
SFK site after project from drone (Timing: After)
Project last updated 10/17/2024