The project will create and enhance important spawning, rearing, and adult holding habitat for ESA-listed salmonids in the North Fork Lewis River. Connected side-channel habitat and LWD complexity have been reduced in this reach of the Lewis River due to past channel clean-outs, riparian clearing, hydro-regulation, and instream gravel mining. The project will enhance key habitat for ESA-listed salmonids through the construction of a 2,500 foot long side-channel with pool-riffle habitat, LWD placements, and connected off-channel (backwater) habitat. The project will also include the rehabilitation of approximately 200 feet of a perennial spring-fed tributary using channel re-grading and LWD placements. This project will also restore native riparian and floodplain vegetation within the disturbance limits of the project.