Skip to main content
King County logo

Project update

September 2019

Preliminary restoration plans coming this fall 

We’ll be out in your community this fall to share an update on our project designs, including preliminary restoration plans. Be sure to sign up for email 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. 

Sammamish River Trail detour routes 

King County will close sections of the Sammamish River Trail between NE 85th Street and NE 51st Street to install the new sewer pipe when construction starts in 2021. We’ve been working on preliminary detour routes based on direction we’ve received from the City of Redmond, King County Parks, and your feedback. Learn more about preliminary detour routes .

pathway next to river and homes

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 Kelly Foley Kruse at 206-477-8621 or for more information.


Contact us

Contact Kelly Foley Kruse at:



Sign up for email or text updates

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

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 2021 and may impact your daily routine. When complete, the new pipe will provide sewer service for 50 years or more.

King County está trabajando en un proyecto para actualizar 4.5 millas de tubería de alcantarillado en su área. King County construirá la nueva tubería en senderos, caminos y parques en Redmond. Este proyecto es necesario para satisfacer las necesidades de su comunidad en crecimiento. La construcción puede afectar su rutina diaria. Se espera que la construcción comience en 2021. Cuando se complete, la nueva tubería proporcionará un servicio de alcantarillado por los próximos 50 años o más. Si tiene preguntas o inquietudes, comuníquese con Kelly Foley al 206-477-8621. Se le puede proporcionar un intérprete sin costo para usted.
金郡目前在您的 区域进行一项4.5英里长的污水管道改良计划。此管道将沿着步道,路道及公园范围来建设。此污水管道工程是为了适应社区发展的需求。施工或许将暂时影响您的日常生活。此工程计划将于2021年起施工。工程完成之后新的管道将提供至少50年的污水运输服务。如果您有任何问题或顾虑,请拨打206-477-8621与Kelly Foley联系,翻译员将免费为您服务。

Project timeline

Project timelineUpdated May 2019


Project location

photo map of project areaProject area map

Back to the capital projects overview map .