Knotweed is a highly destructive and exceedingly robust non-native invasive perennial that is spreading aggressively throughout the White River basin. The plant has no natural enemies and currently thrives along the riverbanks and adjacent roadsides of the basin. In addition to its rapid growth and ability to take advantage of floods to spread even further, knotweed has an extensive underground root network that makes it exceedingly difficult to kill. The Pierce Conservation District is forming a partnership to collaborate across jurisdictions to remove knotweed. A large outreach campaign to landowners and community members will educate landowners about the dangers knotweed presents to the White River Basin. This partnership is requesting $87,262 in funding for one-year project startup costs. Immediate priorities include completing survey work in the basin, and begin eradicating knotweed found there. The project's plan is to:

- Complete surveys in White River and tributaries.
- Begin eradication of Japanese Knotweed found in the basin, beginning at the furthest upstream occurrence
- Reestablish native riparian vegetation where necessary
- Educate residents in target communities about knotweed and other invasives