Natural Drainage Systems (NDS) Designs

This project consists of designing and constructing a natural drainage system at four locations in Northeast Seattle. The project goals are to improve Thornton Creek water quality and decrease the chance of flooding downstream. 

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The South Thornton Natural Drainage System (NDS) Project has completed the 90% Design Phase. We are now presenting updated street and drainage improvements to the community, answering questions, and gathering community feedback as we finalize the project design.

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We’re partnering with the Seattle Department of Transportation (SDOT) to incorporate sidewalks into the streets that do not currently have formalized sidewalks, which aligns with community requests to install sidewalks as a part of this project.