King County offers update on Murray CSO Control project
Wed, 08/07/2013
information from King County
Crews completed removal of hazardous materials in three of the buildings on site at the Murray CSO Control Facility from August 1-3, 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.
Air quality monitoring will continue throughout the project.
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 overflows out of the regional sewer system into the water off of Lowman Beach Park.
What to expect
· Work hours will be 7 a.m. – 5 p.m. on weekdays and 9 a.m. – 6 p.m. 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:
· Remove and dispose 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.
· Salvage 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.
· Demolish 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.
· Stabilize the site – crews will leave the building foundations in place and fill them with soil to maintain the site’s stability and safety.