Barton CSO Control Project
Green stormwater infrastructure
October 2014 Project Update --
Dear Westwood and Sunrise Heights neighbors,
Thank you to the many residents, property owners, and visitors impacted by this past construction season on the Barton CSO Control Project. We know that at times you were slowed down, had to walk further with groceries, or had to wait for access to your home, and we greatly appreciate your patience during this process. The good news is that the first construction season is wrapping up, and the neighborhood should be quiet from late October until late winter, 2015, when the second season gets going. And the 2015 construction season will be shorter thanks to King County’s contractor, Goodfellow Bros., Inc. They were able to move more quickly than anticipated and completed ten blocks instead of the originally planned eight. In addition, they completed preparation work (moving water and sewer lines, restoring concrete, and installing maintenance holes) on the remaining five blocks, further shortening next year’s construction season.
Over the next few weeks, expect to see crews wrapping up their work. This could include installing grass or seeding muddy areas, replacing any dead or unhealthy plants, and/or taking down fences after plant establishment is complete. If you are on an impacted street, you will still receive fliers providing advance notice of major activities (posted on the construction page).
Watch for a project newsletter later this fall with more information about this year’s construction season along with a guide to some of the plants in the newly installed roadside rain gardens.
If you have any questions or concerns, do not hesitate to call the 24-hour construction hotline or email Kristine.firstname.lastname@example.org.
24-hour construction hotline: 206-205-9184
The construction hotline will stay active this winter. Please use it if you see problems with the roadside rain gardens such as standing water longer than 24 hours after a storm, vandalism, or excessive weeds. Once construction is complete in 2015, there will be a long-term maintenance hotline for neighbors and community members to report problems.
Barton basin and project location.
Barton CSO Control Project area
King County will construct bioretention swales (roadside rain gardens), a type of green stormwater infrastructure, in the City of Seattle’s planting strips in the Sunrise Heights and Westwood neighborhoods. Street runoff will be diverted away from storm drains and into the vegetated swales. Once in the swales, the water will filter through soil to an underdrain, which will take the water to a deep well for slow infiltration underground.
View here (PDF, 18MB), a summary of improvements, along with information on plant palettes and trees.
In 2008, King County reported that the Barton Pump Station averages 4 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. Taking stormwater out of the conveyance system in Sunrise Heights and Westwood will reduce these combined sewer overflows (CSOs).
What you can expect during construction
- Roadside rain gardens constructed in two seasons – March to October 2014 and March to October 2015
- Each block will take approximately two months to complete
- Work hours in compliance with City of Seattle permits, which typically allow work between 7 am and 6 pm Monday to Friday
- Local access at all times for homeowners and emergency vehicles
- Pedestrian access at all times
- Restricted parking while street is in construction
Being a good neighbor
King County is committed to being a good neighbor and will work directly with the community throughout construction to minimize impacts whenever possible. Residents can expect:
- Advance notice of construction activities and expected impacts via mail, email, phone and project fliers
- One-on-one problem solving with residents directly impacted by construction activities
- Weekly project website and construction updates
- 24 hour construction hotline. Response from live person within one business day of call.
Download project schedule (PDF, updated June 2013).