DESCRIPTION
The Asotin County Conservation District is sponsoring the Couse Creek PA 79 LWD Instream Habitat Project to install approximately 250 large woody debris structures including Post Assisted Log Structures (PALS), Beaver Dam Analog Structures (BDAS) and engineered wood structures. The project is located south of the City of Asotin, WA along Couse Creek Road. The project begins at RM 1.4 and ends are RM 3.5. Couse Creek is listed as an mSA and Priority Protection Reach that flows directly into the Snake River. PA 79 was identified as a Tier 3 project area and is a 2.1-mile stream reach. There are two landowners for this project area and have enrolled in CREP and a "CREP Like" riparian easement. The conceptual plan recommendations for PA 79 include adding LWD throughout the reach to increase geomorphic complexity, promote overbank flows, increase sediment and increase water retention. Most of this reach of Couse Creek currently does not support perennial stream flows. The LWD structures will be placed strategically to maximize the goals of the project, especially water retention. The project area downstream of this reach was listed as a Tier 1 and the project area upstream is a Tier 4 conservation reach. This project will be the first phase for the PA 79 reach to improve stream function and habitat for Snake River Steelhead. Additional phases will be planned based on conditions after construction of this project to continue improving the stream and riparian conditions
The Couse Creek Project Area 79 (PA-79) Instream Habitat Project installed large woody debris structures including post assisted log structures (PALS), beaver dam analog structures (BDAs), and engineered wood structures. The project is located south of the City of Asotin, WA along Couse Creek Road. The project begins at river mile (RM) 1.4 and ends at RM 3.5. Couse Creek is listed as a minor spawning area (mSA) and priority protection reach that flows directly into the Snake River. LWD was added throughout the reach increasing geomorphic complexity, promote overbank flows, increase sediment, and increase water retention. Most of this reach of Couse Creek currently does not support perennial stream flows. The LWD structures were placed strategically to maximize the goals of the project, especially water retention.
PCSRF FY 2017 funds were spent within the award period.