Duwamish Waterway Park Activation

Updated: January 19, 2021

Early 2021

South Park area projects update: Press releases January 2021 (EnglishSpanishVietnamese)

During the purchase of the 1.3 acre property, Seattle Parks and Recreation (SPR) was made aware that the soil beneath the grass next to the river, in the northeastern portion of the property, contained elevated levels of arsenic and lead. In preparation for park renovations, SPR submitted a Remedial Investigation Report to the Washington State Department of Ecology. This report is being revised to incorporate Ecology's comments and results from the current soil remediation work.

At the end of September/early October, prior to park renovations, SPR began soil remediation work in the northeastern portion of the park. The work started in September with careful excavation around the tree areas, followed by deeper excavations outside of critical tree root zones. Off site soil disposal was delayed slowing the cleanup process. Work stopped in October to facilitate placement of boulders by the Seattle Parks Foundation, after which we completed additional sampling and performed a second round of soil removal to clear the way for the renovation work in early November. As the project moves forward, excavated material from the park renovation will be removed from the site and we will continue to sample excavated trench lines to check for any other soil contamination. Cleanup on non-Seattle Parks and Recreation property is not included in this project.
Duwamish Waterway Park plan rendering thumbnail image and link to PDF of same
Duwamish Waterway Park Improvements Plan Rendering


Duwamish Waterway Park, 7900 10th Ave S, 98108


Working with Seattle Parks Foundation, the Friends of Duwamish Waterway Park raised over $1 million for the park renovation.


Planning: 2013 - 2015
Design: Summer 2019
Construction: Fall 2020
Completion: Summer 2021

Project Description

Construction began in late September 2020 (Construction Begins Press Release - English; Spanish; Vietnamese).

Public planning through the Duwamish River Cleanup Coalition's Healthy Communities program (2013) and Seattle Parks Foundation's South Park Green Spaces Vision Plan (2014) have identified Duwamish Waterway Park as a key open space in the community in need of improvement. There is a strong interest from the community to create more amenities to draw people to the park.

The community vision provides significant improvements to the park to make it a healthy and welcoming space for families, young people, and seniors. The Friends of Duwamish Waterway Park have led the years-long effort to translate the community's vision for the park into a final design. The community driven design provides more welcoming park entries and includes:

  • an improved perimeter pathway with a series of interpretive artwork boulders that enhance the river view with messages relating to the community and the area history; 
  • an all-ages accessible playground including a climbing structure and zip line as well as boulders, logs, and benches; and
  • new park furnishings with accessible picnic tables, barbecues, drinking fountain and foot wash, additional benches, and bike racks.