To restore salmon habitat in WRIA 1, this project will complete a final design, obtain permits and construct five engineered log jams (ELJs) in the mainstem South Fork Nooksack River, consisting of three Type I ELJs (40’x70’), and two Type II ELJs (Log reinforced riffle, channel spanning logjams consisting of forty-three 40’ triangle structures). Threatened early spring Chinook salmon and bull trout will benefit from four deep, primary pools; more pools may develop indirectly as increased roughness causes dynamic equilibrium. Up to seven habitat logs will be placed on the proposed floodplain channels. 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). The log reinforced riffles will aggrade the bed and reconnect the floodplain similar to the successful Larson's Phase 2 project immediately downstream.