Murray CSO control project -- Building a new storage tank to protect Puget Sound
No parking, traffic delays on Beach Drive S.W. on Monday, Oct. 27
King County contractors will use the east part of the 7000 block of Beach Drive S.W. (between Lowman Beach Park and the project site) to assemble a crane that will be used to finish digging out the Murray CSO Control Facility tank area. The crane will be delivered and assembled on Monday, October 27 from 11 a.m. - 5 p.m. Neighbors and park users should expect traffic delays of up to 15 minutes on the 7000 block of Beach Drive during these hours.
To maintain local access, there will be no parking on Beach Drive S.W. between the project site and Lowman Beach Park from 9 a.m. to 5 p.m. Flaggers will work with drivers to ensure safe passage around the assembly area.
What to expect:
• Crews and equipment working on the 7000 block of Beach Drive S.W. across from Lowman Beach Park
• No parking on 7000 block of Beach Drive S.W. between 9 a.m. and 5 p.m.
• Trucks entering the area from 11 a.m. and ending at 5 p.m.
• Potential traffic delays of up to 15 minutes on the 7000 block of Beach Drive S.W., south of Lincoln Park Way S.W. from 11 a.m. - 5 p.m.
• Flaggers directing traffic around the work area
View the construction update (PDF, October 23, 2014).
Have a comment or question? Need more information about the project?
Click here to contact the project team.
Murray Project Hotline: 206-205-9186
Final Design, December 2012
Project haul routes, February 2014
Murray basin and project location
King County is designing an underground storage tank across the street from Seattle’s Lowman Beach Park. The tank will store approximately one million gallons when the Murray Pump Station exceeds maximum capacity.
Why do we need this project?
Protect public health
Like many cities around the country (external link), the older parts of King County's wastewater system uses a single set of pipes to carry untreated sewage and stormwater to a treatment plant. To prevent sewer backups into homes and streets, the system includes safety valves called “combined sewer overflows” that route excess sewage and polluted stormwater flow directly into Puget Sound during storms. Although CSOs reduce potential exposure to untreated sewage, they pose significant public health concerns.
Clean up Puget Sound
The Murray CSO control facility will reduce CSOs into Puget Sound. State regulations require no more than one untreated discharge per year. The Murray Pump Station averages five untreated CSO events per year, discharging 5 million gallons into Puget Sound off of Lowman Beach Park.
View construction schedule overview (PDF) and project meeting calendar.
How has the community shaped facility design?
Since October 2011 Lowman Beach Park neighbors and park users have worked with local designers, environmentalists and community advocates to help the King County project team design a facility that fits with the community. These discussions produced “common themes” for the design that reflect the community’s values for a safe, reliable facility. The common themes are:
- Minimize the “industrial facility” feel
- Encourage views of Puget Sound
- Discourage through traffic on Beach Drive
- Enhance continuous space between Lowman Beach park and the facility site