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Murray Basin Work To Prepare Site for Overflow Tank Construction Begins, Construction Impacts Noted

Murray CSO mapBeginning Thursday, August 1, King County’s contractor, Tiger Construction, Everson, WA, began work to clear the buildings from the Murray Combined Sewer Overflow (CSO) Control Project site, located on Beach Drive Southwest across from Lowman Beach Park.

Crews have already completed removal of hazardous materials in three of the buildings on site at the Murray CSO Control Facility  and will finish up removal work on the remaining buildings over the next week.

Tree protection was installed around the cluster of large trees along the site’s eastern border on August 6. Crews also began deconstructing the cleaned buildings and salvaging reusable materials from them. Some of the salvaged materials will be used in the project art. The deconstruction work requires trucks and containers, so parking access on the Murray Avenue Southwest right of way will be limited through the end of September. Demolition of the remaining structures will occur after the hazardous material and salvage work is complete.

King County will monitor air quality for the duration of the deconstruction work, which will be complete by the end of September. The existing structures must be removed before construction of the new storage facility begins in late 2013. The facility will protect Puget Sound by storing sewage and polluted stormwater during storms to prevent it from overflowing out of the regional sewer system into the water off of Lowman Beach Park.

What to expect

  • Work hours will be 7:00 am to 5:00 pm on weekdays and 9:00 am to 6:00 pm on Saturdays;
  • Access to Beach Drive Southwest will be maintained at all times;
  • Lowman Beach Park will remain open;
  • Project fencing will extend to the east curb of Beach Drive Southwest to maintain public safety; Pedestrians and bicyclists are urged to use Beach Drive Southwest’s western sidewalk;
  • Increased noise and activity typical of a construction site;
  • Heavy equipment including trucks, excavators, and construction containers operating on and around the project site;
  • Limited parking at times along Beach Drive Southwest and Murray Avenue Southwest;
  • Increased truck traffic on nearby streets.

Deconstruction activities

Over the next two months, King County contractor crews will:

  • Safely remove and dispose of asbestos – A few of the existing structures contain asbestos, which is harmful to human health. Nearly all of the removal work will occur inside the buildings, and requires only hand tools to complete;
  • Salvaging of reusable materials – The project must salvage at least 25 percent of the materials from the site and is seeking to salvage even more. Salvaged materials from the buildings will also be included in the project’s art installation;
  • Demolition of existing structures – Crews will deconstruct each structure individually disposing them as they go, starting from the south end of the project site and working north. Crews will use an excavator to complete this portion of the work;
  • Site stabilization – crews will leave the building foundations in place and fill them with soil to maintain the site’s stability and safety.

Coming up next….Facility construction begins in late 2013

King County has obtained the necessary permits for the project and is now finishing its review of project bids from potential contractors for facility construction. When a contractor is selected, King County will share more information about the project schedule, impacts and ways to communicate with the project team throughout construction. A public meeting will be held before construction begins, as will community group briefings. The project team will begin working with interested community members individually as necessary to prepare for construction. If you would like to be added to the project mailing list, please contact Doug Marsano at the phone number or email address below.

Construction of the facility will begin in late 2013. Among the first tasks the contractor will undertake is stabilizing the slope behind the site before excavation of the storage tank occurs.

For more information:

Call the 24-hour project information hotline: 206-205-9185, or contact Doug Marsano at Doug.Marsano@kingcounty.gov or by phone at 206-684-1235 or by cell phone at 206-423-0480,

 

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