Lake Hills and NW Lake Sammamish sewer upgrade
Project update
King County WTD continues to work on the final design for the Lake Hills/NW Lake Sammamish Sewer Upgrade project. Construction is expected to begin in late 2024.
Interested in a project briefing for your community group?
We are happy to meet with you or come to your next community event to share the latest project information and to answer questions you might have as we get closer to construction. Please contact Annie Pfeifer at 206-263-3203 or amurrillpfeifer@kingcounty.gov for more information.
Sign up for project text alerts
Be sure to sign up for project updates to stay up-to-date on the latest project information and upcoming events. You can also get updates from your phone. To sign up for text alerts, text KING REDMONDSEWER to 468-311.
Resources
- Project Overview fact sheet (updated December 2018)
- Glossary of terms: King County Wastewater 101
- Meeting calendar for locations and meeting materials
- Project library for updates, fact sheets and environmental documents
- To sign up for project text alerts, text KING REDMONDSEWER to 468-311
Project description
The Lake Hills and NW Lake Sammamish sewer pipe has been serving Redmond and Bellevue for 50 years. The water you use travels down your drain to City sewer systems. The City’s pipes send wastewater to King County’s sewer system where it is carried to the Brightwater Treatment Facility in Woodinville for treatment.
King County is working on a project to upgrade 4.5 miles of this sewer pipe. King County will build the new pipe in trails, roads and parks in Redmond. This project is necessary to meet the needs of your growing community. Construction is expected to begin in 2024 and may impact your daily routine. When complete, the new pipe will provide sewer service for 50 years or more.
Contact us
Contact Annie Pfeifer at:
amurrillpfeifer
@kingcounty.gov
206-263-3203
If you’d like to receive email or text updates on the Lake Hills and NW Lake Sammamish sewer upgrade:
Project location
Project area map Back to the capital projects overview map .