The purpose of the North Olympic Salmon Coalition's (NOSC) East Jefferson Summer Chum Riparian Phase IV planning and restoration project, in Jefferson County, WA, is to control knotweed that is establishing along the lower Snow Creek riparian corridor (mouth to RM 3) and restore riparian forest area and health on 30 acres of floodplain habitat on Chimacum and Snow creeks. The target invasive species, Knotweed ( Polygonum sp.) and Reed Canarygrass ( Phalris arundinacea) have invaded the riparian areas of these two systems, resulting in a riparian corridor that is lacking in diversity and habitat quality. The project will restore critical rearing and spawning habitat for ESA-listed Hood Canal Summer Chum and Puget Sound Steelhead, and Puget Sound Coho.