Skip to main content
King County logo

Road work information

single lane closure map

Please check the Project Update box for additional closure information.

Closure information and work hours

  • Intermittent closures of SE 35th Pl during working hours.
  • Single-lane closures between 162nd Pl SE and 164th Pl SE for landscape restoration.

Work hours

  • Weekdays 7 a.m. to 7 p.m.
  • The contractor may work on weekends as needed. We will keep you updated on weekend work through our email updates.

Timing

  • This work will continue through 2020.

Major work being performed

  • Restoration

Closure information

  • Intermittent single-lane closures along 164th Pl SE between SE 35th Pl and 166th Ave SE during working hours.
  • Both lanes of traffic will be open outside of working hours.

Work hours

  • Weekdays 7 a.m. to 7 p.m.
  • The contractor may work on weekends as needed. We will keep you updated on weekend work through our email updates.

Timing

  • This work will continue through 2020.

Major work being performed

  • Restoration

Closure information

  • Intermittent single-lane closure on 163rd Ave SE during working hours.
  • Both lanes of traffic will be open outside of work hours.

Work hours

  • Weekdays 7 a.m. to 7 p.m.
  • The contractor may work on weekends as needed. We will keep you updated on weekend work through our email updates.

Timing

  • Intermittent through the end of construction in early 2020.

Major work being performed

  • Transport of large equipment.

Closure information

  • Intermittent single-lane closures during working hours, as needed.
  • To be notified in advance of a planned full closure for deliveries, please sign up for email updates on this page.

Work hours

  • Weekdays 9 a.m. to 3 p.m.

Timing

  • This work will continue through the end of construction in 2020.

Major work being performed

  • Transport of large equipment.

Project update - January 21, 2020

You can expect to see King County’s contractor conducting landscape restoration along SE 35th Pl and 164th Pl SE this month as crews work to wrap up restoration activities. Please note that this work is heavily weather-dependent and cannot be done in below-freezing or wet weather.

Read more .

Thank you for your patience while crews complete this restoration work.

Ongoing road and travel lane impacts are listed above.

If you have questions, please call the 24-hour construction hotline at 206-296-7800 or email Caryn Sengupta at caryn.sengupta@kingcounty.gov.

Update from City of Bellevue

Work on West Lake Sammamish Parkway

Starting Jan. 27 possibly extending to Jan. 31, a section of West Lake Sammamish Parkway, between Northup Way and SE 26th St, will be closed to through traffic between 6 a.m. and 5 p.m.

During the closure, the City of Bellevue Utilities department is conducting emergency work to replace a failed stormwater pipe at 2442 West Lake Sammamish Parkway SE. Read more .

phases_graphic_construction

Contact us

Contact Caryn Sengupta, community services lead at:
 caryn.sengupta
@kingcounty.gov

206-296-7800 (24-hour construction hotline)
 Feedback form

Sign up for email or text updates

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


Project description

The Sunset and Heathfield Pump Stations and related sewer pipes send sewage from Sammamish, Issaquah, and Bellevue to be cleaned at King County’s treatment plant in Renton. This sewer system has provided reliable service for around 50 years and is reaching its limit.

This project will upgrade both pump stations and the connected force main pipe. The project will also upgrade the Eastgate Trunk structure near I-90. The Eastgate Trunk connects the force main pipe to a larger pipe, carrying flows to be treated at the South Treatment Plant in Renton. The improved system will help serve the growing population for many years.

Read our December 2016 newsletter for more information about how community feedback influenced final design and for details about upgrades to the pump stations.

Sunset Pump Station upgrades

Sunset Pump Station Final Design

  • Four new pumps to increase capacity
  • New electrical and controls systems
  • New standby generator allowing the station to continue operating during power outages
  • New heating and air conditioning systems (HVAC)
  • Addition of native plans and restoration of shoreline habitat
  • Roof replacement and added green roof to manage stormwater
  • New lighting and fencing
  • Permeable driveway

Heathfield Pump Station upgrades

Heathfield Pump Station Final Design

  • New lighting and fencing
  • Four new pumps to increase capacity
  • New electrical and controls systems
  • New standby generator
  • New heating and air conditioning systems (HVAC)
  • Rain garden
  • Landscaping
  • Roof replacement

Project area

Project schedule

Crews will work to restore SE 35th Pl and 164th Pl SE in early 2020.

Pump Station work will continue into 2020.

Project location

Project locator map for Sunset and Heathfield pump stations and force main upgrade

Back to the capital projects overview map .

Heathfield Pump Station,
3541 163rd Ave. S.E., Bellevue

Sunset Pump Station,
3730 W. Lake Sammamish Pkwy. S.E., Bellevue