The Snohomish Conservation District partnered with the USFS (Forest Service) on an erosion control project, providing controlled road drainage to reduce the risk of road failure, erosion, and sediment production, and its effects on fish habitat and water quality. The sponsor treated 8.5 additional miles of Segelsen Road and completed the Forest Service Roads treatment in the Deer Creek sub-basin of the watershed. The project applied various treatments, including adding or replacing culverts, stablizing fill, installing water bars, and removing road prism where needed for stability. Stillaguamish Watershed Chinook Salmon Recovery Plan (2005) identified forest roads that are underlain by unstable geology and on > 30% slopes as presenting an increased risk of sediment routing to streams and rivers. Sediment transported from upland areas and from within the channel determines the nature and quality of salmonid habitat in streams and rivers. Quality and stability of Chinook salmon spawning habitat are key factors affecting Chinook production. Bull trout, steelhead and coho utilize Upper Deer Creek, while Chinook, pink, chum; sea run cutthroat trout utilize lower Deer Creek. This portion of the watershed has been identified as refugia for steelhead, coho and char (Collins et al. 1995). There is an anadromous fish barrier just above where Higgins Creek enters into Deer Creek, approximately in the middle of the project area.