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A 17-acre public park encompassing a salmon-bearing stream, forested riparian wetlands, and upland forest located between a freeway and a large regional public high school. Most of the park is in disturbed woodland, an early-successional stage of forest recovery with limited public access and considerable incursions of non-native species. A playground facility occupies a few acres of one edge.

2003 - 2004


2003 - 2004
Project name
Rotary Park: lower riparian area restoration
Woodinville City Parks and Recreation Department, Volunteers of Washington, and the Woodinville Rotary Club
R. Maksimos, B. Odland, and N. Thomson (UW Bothell; Environmental Science), K. Suyama (UW Seattle; Environmental Studies), S. Nance (UW Seattle; Biology)
Site description
a riparian floodplain adjacent to Little Bear Creek that is heavily infested by a non-native grass (reed canarygrass) and a non-native shrub (Himalayan blackberry) near the stream leading into a forest edge of moderate aged deciduous trees and a low-diversity native shrub understory (salmonberry).
Restoration challenge
Clients wished to create a diverse native plant assemblage alongside the stream to promote habitat and streambank protection, with the eventual goal of allowing limited public access along a trail for nature study and interpretation. This project would extend upon work already done by the client further down along the stream.
Restoration approach
UW-REN students, working with community members and local school children, removed non-native species from the riparian zone. Bioengineering with native plants was used to stabilize the streambank. Native trees, shrubs, grasses, and herbs were added along with mechanical barriers and mulch for weed control with a focus on species to (1) rapidly establish a shade canopy to control reinvasion by non-native species, (2) promote eventual succession to a mature evergreen forested wetland, and (3) create structural diversity in the vegetation for habitat. Communities were installed to fit the varying hydrology across the floodplain.