The South Fork Nooksack (SFN) early Chinook population is considered essential for ESU recovery, but abundances are critically low and immediate action is necessary to ensure population persistence. A recent reach assessment and restoration planning effort identified limiting factors and causes of habitat degradation and recommended specific restoration strategies and locations. This project has advanced project implementation - specifically, developed a conceptual design and sequencing for the optimal restoration scenario for the reach, and developed construction-ready designs, conducted flood risk analysis, and will prepare permits for phase 1 construction of engineered log jams in the South Fork Nooksack Hardscrabble Creek Reach (~RM 5.1-5.4). Log jams were designed to address factors most limiting SFN early Chinook in the reach, including low habitat diversity and lack of deep holding pools with cover. Conceptual design was funded by the Puget Sound Partnership through funds identified to advance design of high priority projects in the basin. Structures presented in the conceptual designs are similar to those constructed in the Todd Creek reach downstream in summer 2008; those structures have been successful at promoting scour and formation of deep, thermally stratified pools.