Skip to main content
King County logo


Project update

April 19, 2018

King County’s contractor is cleaning out the existing pipe in order to pull another pipe in place. Crews are making progress, but will need more time to prepare the existing pipe for pipe bursting.

Currently, the contractor expects pipe bursting to begin the week of April 30. Pipe bursting must continue around the clock and may take up to four days to complete.  

King County's Community Services team is working with residents most affected by the in the work area as pipe installation approaches. 


  • Expect traffic delays of up to 2 hours on 32nd Avenue West during pipe bursting work. Most delays will take place one day prior to pipe bursting as crews fuse longer segments of the pipe. There may also be a few delays during pipe bursting activities.  
  • If you need to access your home via 32nd Avenue West during the pipe bursting work, please contact us so we can keep you informed of project impacts.


  • Please be considerate of the project neighbors who are affected by this work.
  • You can safely view the project work from the Howe Street Bridge.
  • Avoid 32nd Avenue West during pipe bursting work. One lane of the road will be occupied by project equipment and materials. The remaining lane must stay open for resident and emergency access. 
  • There will be no parking available for non-residents during the pipe bursting work. Parking is also limited in surrounding areas, including 33rd Avenue West and Wolfe Street. Closure of the parking lane on Clise Place West will mean some residents must park in the neighborhood away from their homes.

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

Project overview mapProject 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

Who do I contact during pipe installation?

For questions, concerns, or to discuss accommodations:

Monica Van der Vieren until April 8:

Doug Marsano from April 9-22:

Contact the 24-hour construction hotline: 206-205-5969


Sign up for email or text updates

To manage your preferences, enter your email or wireless number and select Confirm.

Project location


Back to the capital projects overview map .