The Nisqually River Knotweed Project works to preserve and improve riparian habitat function on the lower watershed of the Nisqually River and in the priority sub-basins of the Nisqually. The potential spread of knotweed in the system continues to threaten the excellent spawning and rearing habitat currently available for all species of salmonids. In the early stages, this project concentrated in the lower watershed below the Alder-LaGrande Dam complex and along the key tributaries to the lower river. The lower watershed continues to be surveyed, monitored and treated for re-sprouts and newly discovered patches and the project continues to map, monitor and treat the much larger populations in the upper watershed that will eventually spread if not kept in check. Significant progress has been made in both the lower and upper watersheds. The project began in 2007. Its structure allows partners such as the county weed boards, the Nisqually River Council, the Nisqually Tribe, US Fish and Wildlife Service, Mt. Rainier National Park, Tacoma Power, the US Forest Service, Fort Lewis, County Conservation Districts, The Nisqually Land Trust, and others to collaborate across jurisdictions to remove knotweed. Over the life of this grant, the Nisqually River knotweed project controlled knotweed on 501 acres on 75.04 river miles (includes new and re-treated acreages). 193 acres were treated in 2009, 178 acres treated in 2010, and 130 acres were treated in 2011.During the life of this project, more than 11,600 patches have been treated along the riverbanks and adjacent roadsides (new and re-treated). Working with the community to raise awareness, permission has been granted by signed waiver, to treat knotweed on over 70 parcels so far. Over 10 parcels in Lewis County, over 10 parcels in Thurston County, and greater than 47 parcels were treated during this project. During this period, most treatment in the upper watershed was done on the Pierce County side. Several of these parcels were large, publically owned parcels. Parcels treated in Lewis County were primarily large public owned parcels. Treated parcels in Thurston County included a small number of parcels where patches were re-treated as well as a small number of newly discovered patches. The project continues expand capacity to survey, map and remove all knotweed in the watershed by building strong partnerships, providing community outreach and education, developing relationships with landowners, leveraging other funds to support the project, and utilizing efficient and effective methods to catalog knotweed stands and treat knotweed infestations.