skip to main content

Wastewater Treatment

King County, Washington

For questions about the Wastewater Treatment Division website, please send an e-mail message or contact us at:

King Street Center
201 S. Jackson St., Suite 500
Seattle, WA 98104-3855
Phone: 206-477-5371
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

Get Directions to our office location in Seattle, Washington.

Staff Contacts

Barton CSO Control Project

Green stormwater infrastructure

Project Construction

June 9, 2015 Update -- Major construction of roadside rain gardens complete

King County’s contractor, Goodfellow Brothers Inc. (GBI), has completed major construction of roadside rain gardens on the five blocks shown in orange on the map below. Over the next few weeks, crews will finish up some minor landscaping work. 

For the next two months, the recently constructed roadside rain gardens will be protected with green fencing while plants begin to grow.  All streets and sidewalks will be open during this time.

Roadside rain garden during plant establishment period
Roadside rain garden during plant establishment period.

Later this summer after plant establishment is complete, crews will run one-day tests in the street to make sure water flows into and drains out of each rain garden as intended. There will be some parking restrictions near the work area during flow testing. 

Watch for a summer newsletter with information on the future of the roadside rain gardens, and watch for an invitation to a fall celebration of the project’s completion.

June 9, 2015 - construction complete.
Weekly Update
 (PDF, June 9, 2015). 

Monitoring and maintenance are still ongoing on the ten blocks completed in 2014. To learn more, view the facility operations page.

If you have any questions or concerns, do not hesitate to call the 24-hour construction hotline (206-205-9184) or email Kristine.cramer@kingcounty.gov 

Barton_VicinityMap_250
Barton basin and project location.
 
2015 construction map
Barton CSO Control Project area

Project description

King County is constructing roadside rain gardens, a type of green stormwater infrastructure, in the Sunrise Heights and Westwood neighborhoods in West Seattle. Located in the planter strip between the curb and sidewalk, these roadside rain gardens will divert stormwater runoff away from the combined sewer system. When it rains, stormwater will filter through the rain garden soil to a drain pipe, which will take the water to a deep well for slow infiltration underground. Keeping stormwater out of the sewer system will reduce CSOs of raw sewage and untreated stormwater into Puget Sound near the Fauntleroy ferry dock. For a summary of improvements, along with information on plant palettes and trees, click here.

Project need

In 2008, King County reported that the Barton Pump Station averages four overflows per year that discharge approximately 4 million gallons of raw sewage and untreated stormwater into Puget Sound near the Fauntleroy ferry dock. King County is working to meet current regulations set by the Washington Department of Ecology that require no more than one untreated discharge per year on a long term average.

What you can expect during construction

  • Work hours Monday through Friday, 7 a.m. to 6 p.m. Advance notice will be provided for any work outside those hours.
  • Construction materials and equipment on the street and material storage in the right-of-way planter strips.
  • Noise and activity typical of a construction area.
  • The contractor will maintain local and emergency access at all times although there will be times when local access will need to be coordinated with the construction crew.
  • Uninterrupted delivery of mail and packages and uninterrupted waste management pick up.
  • All work to occur in the public right-of-way.

Being a good neighbor

King County is committed to being a good neighbor and will work directly with the community throughout construction to reduce impacts whenever possible. If you have questions or concerns, please call the 24-hour construction hotline at 206-205-9184 or email Kristine.cramer@kingcounty.gov

Project schedule

Project milestones  Dates 
Construct roadside rain gardens on 10 streets March – October 2014
Construct roadside rain gardens on 5 streets March – October 2015
Ongoing facility maintenance October 2014 and beyond
Community outreach and engagement Throughout

 

RainWise now available for Barton basin residents
RainWise now available for Barton basin residents
. The residential RainWise program provides rebates that cover most or all of the cost of installing cisterns and rain gardens on private property. The program is available to all homeowners in the Barton basin starting now and running through 2015. Learn more.

News releases

Project updates

Find out if a CSO is occurring in Barton

Related information

For more information