This funding will support King County’s efforts to revegetate 600 linear feet of Green-Duwamish River shoreline within the City of Tukwila along the shoreline of two privately owned businesses. The shoreline in this reach is severely degraded with invasive Himalayan blackberry, bamboo, knotweed, and English ivy. Summertime temperatures in the Green River frequently exceed the lethal threshold for ESA-listed Chinook and other salmon and fail to meet state water quality standards (Ecology TMDL, 2011). This reach of shoreline (river mile 11.15-11.3) is identified as a high priority for shade on the Muckleshoot Indian Tribe’s riparian aspect map. Following invasive weed control, native trees and shrubs will be planted that will provide critical shade for the Green-Duwamish River in a reach with minimal tree cover. The project will also contribute to increasing Tukwila’s tree canopy, improving water quality by slowing surface runoff and filtering pollutants, providing overhanging vegetation for fish, and contributing organic matter critical for juvenile salmon growth.
King County Department of Natural Resources and Parks
Tukwila Shoreline Revegetation along the Green-Duwamish River
Puget Sound Stewardship and Mitigation Fund, 2019