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Project update

February 16, 2018

This past week, King County’s contractor obtained a noise variance from the City of Seattle, for work on 32nd Avenue West to remove equipment in the early morning hours. We apologize on behalf of the project team that the community was not notified in advance of this work. We have improved our processes to make sure we connect with neighbors prior to these events.

Please note, crews will work on Presidents Day, Monday, February 19 during typical construction hours.

View project update (February 16, 2018).

Online open house 

We have launched an interactive online open house to share construction and schedule information with you. You can review the information and give input at your own convenience, any time of the day, at If you have additional thoughts after you have reviewed the open house and have provided questions and comments, you can return to the site and start a new session.

Please feel free to share this information with your neighbors, and encourage them to participate.

Recent updates

1710_project-map-pipe-breakProject overview map

Magnolia Wet Weather Storage FacilityThe Magnolia Wet Weather Storage Facility at Smith Cove is designed to store excess flows of stormwater and sewage. The facility’s 1.5 million-gallon underground storage tank will help keep sewage and stormwater out of Puget Sound during storms.

King County is Protecting our Waters

This project is part of King County’s Protecting our Waters program to prevent pollution caused by excess stormwater in the sewer system on rainy days.

Combined sewer overflows (CSOs) are relief points in older sewer systems that carry sewage and stormwater in the same pipe. When heavy rains fill the pipes, CSOs release sewage and stormwater into rivers, lakes, or Puget Sound.

King County and the City of Seattle are working together to control CSOs and keep sewage and stormwater out of local waterways.

construction phase

Contact us

Contact Monica Van der Vieren, community services, at:


Pipe replacement project - during construction call us at 206-205-5969

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Project location


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