Project location: South Fork Nooksack River upstream of Dye's Canyon, between RM 16.6 to 17.0 To restore salmon habitat in WRIA 1, this project constructed 6 engineered log jams (ELJs) in the mainstem South Fork Nooksack River, consisting of three Type I ELJs, three Type II ELJs, and 9 habitat log structures (2 key pieces). Endangered early spring Chinook salmon and bull trout will benefit from 6 new scour pools; more pools may develop indirectly as increased roughness causes dynamic equilibrium. Scour pools provide thermal refugia (holding pools) from elevated South Fork water temperatures during summer spawning months in addition to pools for juvenile overwintering (rearing pools). All features are focused on enhancement of endangered Spring Chinook (Oncorhynchus tshawytscha) habitat by maximizing natural habitat-forming processes inherent in this reach of river. By leveraging these natural habitat-forming processes, structure locations and architecture were designed to meet project objectives. This project addresses the number one known limiting factor for WRIA 1 salmonids: habitat diversity. ELJs, LWD habitat structures, and reinforced wood accumulations will increase the availability of complex instream habitat while providing deep pool habitat in a reach associated with cool groundwater inputs.