Public Works

6300 Southcenter Blvd.,
Tukwila, WA 98188

Phone: 206 433-0179
Fax: 206 431-3665

Email the Public Works Dept.

East Marginal Way Stormwater Outfalls

Project Overview

This project redirects drainage and treats roadway runoff along East Marginal Way S to reduce the likelihood of contaminated groundwater from entering the city’s outfall. Project specifics include installing a small pump station and force main, replacing a portion of the center turn lane with porous pavement, installing a water quality vault and swale, and lining approximately 400 feet of the Boeing Z-line outfall. Construction is almost finished, as the Contractor and Seattle City Light are working to install the control panel components and power the pump system as one of the last major remaining tasks.


Contact Information

For specific questions, contact Mike Perfetti at 206-433-7192 or email at


Project Photos