information from King County

The Murray Basin CSO Control Facility on Beach Drive SW is expected to be complete by next fall. When complete, the Murray CSO Control Facility will collect up to 1 million gallons of sewage and polluted stormwater that would otherwise overflow into Puget Sound. Major street work on Beach Dr. S.W. and facility building are underway and are expected to be complete by late spring 2016.

Storage tank and facility building

Earlier this year, we finished constructing the million-gallon underground storage tank. This was a major milestone for the project.

The construction team is now working to build the facility on top of the underground storage tank. The facility will contain operations equipment and will provide access to the tank for maintenance personnel.

The facility building will have a green roof and rain garden that will capture stormwater and filter the water before directing it into the sewer system. For more information about managing stormwater at home, check out the RainWise program sponsored by Seattle Public Utilities, King County, and Green Stormwater Infrastructure at: www.700milliongallons.org/

Street work on Beach Dr. S.W.

Construction under Beach Dr. S.W. is underway. A 5-foot wide sewer pipe being placed under Beach Dr. S.W. will connect the new tank to the existing Murray Pump Station and sewer system. Additional utilities will also be installed across Beach Dr. S.W. after the 5-foot wide pipe is in place. We will keep one lane of Beach Dr. S.W. open, but please be prepared for increased congestion and possible traffic delays of up to 15 minutes.

Parking restrictions and pedestrian detours remain in place on the 7000 block of Beach Dr. S.W. To stay safe, please follow the directions of flaggers and signage near the site. Bicyclists are asked to dismount while passing through the 7000 block of Beach Dr. S.W. We ask that bicyclists use extreme caution after construction hours as steel sheets are used to cover the trenches.

What to expect

• Work will continue on weekdays from 7:00 a.m. – 6:00 p.m. and some Saturdays from 9:00 a.m. – 5:00 p.m.
• No work is scheduled for Dec. 24, Dec. 25, or Jan. 1
• Crews working in the project site, Lowman Beach Park, and Beach Dr. S.W.
• Truck traffic, congestion, and traffic delays on streets near the project site
• No parking on the 7000 block of Beach Dr. S.W.
• Flaggers and signage in place to direct vehicle, pedestrian, and bicycle traffic on Beach Dr. S.W. and at the intersection with 48th Ave. S.W.

For more information:
Call the 24-hour project information hotline: 206-205-9186
Email caryn.sengupta@kingcounty.gov or http://www.kingcounty.gov/murraytank