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Road work information

road closure mapView larger version of map .

Please check the Project Update box for additional closure information.

Closure information

  • Single-lane closures on sections of SE 35th Pl sections between Southeast Eastgate Way and 162nd Place Southeast.
  • Both lanes of traffic will be open outside of work hours.

Work hours

  • Weekdays 6:30 a.m. to 7 p.m. (equipment will not start until 7 a.m.).

Timing

  • Single-lane closures will continue through the end of 2018.
  • There will be additional lane closures in 2019 to restore the road.

Major work being performed

  • Open cut construction for sewer pipe installation.

Closure information

  • Full closure of 164th Place Southeast between Southeast 35th Street and 163rd Avenue Southeast.
  • Full closure of 164th Place Southeast near Vasa Creek.
  • Closure in effect 24 hours/day.

Work hours

  • Weekdays 6:30 a.m. to 7 p.m. (equipment will not start until 7 a.m.).

Timing

  • This work will continue into early 2019.

Major work being performed

  • Jack-and-bore tunneling for sewer pipe installation.

Closure information

  • Single-lane closure on 163rd Avenue Southeast.
  • Both lanes of traffic will be open outside of work hours.

Work hours

  • Weekdays 6:30 a.m. to 7 p.m. (equipment will not start until 7 a.m.).

Timing

  • Intermittent through the end of construction in early 2020.

Major work being performed

  • Transport of large equipment.
  • Installation of dewatering equipment.

Closure information

  • Single lane closure on West Lake Sammamish Parkway between the Sunset Pump Station and Southeast 38th Street.
  • Both lanes of traffic will be open outside of work hours.

Work hours

  • Weekdays 9 a.m. to 3 p.m.

Timing

  • Intermittent through the end of construction in early 2020.

Major work being performed

  • Transport of large equipment.
  • Investigation of a bulge in the pavement near the intersection of Southeast 38th Street.

Project update

Update on Vasa Creek – October 5, 2018

Last week, in coordination with regulatory agencies, King County and its contractor investigated the sinkholes in Vasa Creek next to the Sunset/Heathfield work site, and agreed upon a plan to restore the stream bed. The contractor has completed this work. The County will continue to coordinate with regulatory agencies to determine what mitigation actions may be necessary to address the temporary environmental impact of this incident.

W Lake Sammamish Pkwy SE full overnight closure beginning late on October 12th

Crews will close W Lake Sammamish Pkwy SE overnight while they remove a large generator from the Sunset Pump Station. 

What to expect: 

  • Crews will close W Lake Sammamish Pkwy SE in both directions from Sunset Pump Station to the intersection of SE 38th St.
  • The closure will last from 11 p.m. on Friday, Oct. 12 to 7 a.m. on Saturday, Oct. 13. 
  • Closure will not prevent traffic flow from Southeast 38th Street onto northbound West Lake Sammamish or traffic flow onto Southeast 38th Street from southbound West Lake Sammamish.

W Lake Sammamish Pkwy SE single lane closure: Friday, October 5, 9 a.m. to 3 p.m. 

Crews will close a section of W Lake Sammamish Pkwy SE near Sunset Pump Station while they install a green roof on the pump station. The green roof will help reduce runoff and improve water quality.

Ongoing road and travel lane impacts are listed above. 

Please read the latest project update to learn more.

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

phases_graphic_construction

Contact us

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

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

This schedule is current as of August, 2018. Construction is expected to end in 2020.

project timelineProject schedule

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