Skip to main content
King County logo

Project update

Dec. 12, 2016 – Upcoming open house and pump station tours

Join us on Saturday, Jan. 28, 2017 for an open house to review the most recent design plans for the pump stations and force main alignment, speak with project staff, and tour the current pump stations.

Date: Saturday, Jan. 28, 2017
Time: 1-3 p.m. Open house

  • 1:30 p.m. Sunset Pump Station tour
  • 3:00 p.m. Heathfield Pump Station tour

Location: Vasa Park Ballroom, 3560 West Lake Sammamish Road S.E., Bellevue

Guests can walk from the open house to the Sunset Pump Station tour, but will need to use their own mode of transportation to get to the Heathfield Pump Station tour (roughly a 10-minute walk or two-minute drive).

Read our December Newsletter  for more information about the final design.

phases_graphic_construction

Contact us

Contact De’Sean Quinn, community services lead at:

 desean.quinn@kingcounty.gov
 206-477-5417
 Feedback form

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 cleaned. The improved system will help serve the growing population for many years.

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 South Treatment Plant in Renton. The improved system will help serve the growing population for many years.

Read our December 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 site layout -- links to December 2016 newsletter

  • 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 site layout -- links to December 2016 newsletter

  • 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

The final design for the Sunset and Heathfield Pump Stations and force main alignment is complete. Construction is expected to start as early as spring 2017 and end in 2020.

Before construction begins, the County will hold a public meeting where you can meet the construction team, learn more about the construction schedule, ask questions, and get more information about what to expect while work is underway.

1612_project-timeline

Project location

Sunset_Heathfield_SC_400

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