Natural Drainage Systems (NDS) and Pedestrian Improvement Designs

This project consists of designing and constructing natural drainage systems at three locations in the Delridge and Westwood neighborhoods. The project goals are to improve Longfellow Creek water quality, reduce drainage and flooding issues, and improve pedestrian safety.

Construction for the Longfellow Creek Natural Drainage Systems (NDS) project is scheduled to begin April 2022 and is expected to go through late 2022/early 2023. Visit the project webpage for the most up-to-date construction information.

Explore Each Site Design

Click 'Learn more' on a site below to see its latest design plans.

Sylvan Way SW & SW Orchard St

SW Kenyon St & 24th Ave SW

24th Ave SW

A Map of West Seattle showing the project sites highlighted in orange. The project sites in order from North to South are Sylvan Way, Kenyon St, and 24th Ave SW.