Project Profile

Originally built in 1910, this 6-story historic building is being renovated so the Washington State Department of Transportation can drill a tunnel underneath it as part of the new WA-99 project. The building was originally going to be torn down. But because of its location in the Pioneer Square Historic District, WSDOT has agreed to the renovation instead. Upon completion of major seismic and structural upgrades, the 90,000 square foot building will be used for commercial office space. This will be the first structure the tunnel project will encounter. The boring machine is expected to be under the building for a total duration of 7 to 10 days.

Value engineering provides win-win scenario.
Due to the design build nature of this project, including an extended schedule between phases, Snyder provided GLY with the EPDM roofing necessary to install a reliable, temporary, roof. This allowed them to remove areas of roofing, as needed to perform work, but also keep the structure in the dry. To eliminate additional project costs when the permanent roof was installed six months later, Snyder worked with the manufacturer to keep the EPDM in place and use it as a vapor barrier, as this was not included in the original design. Ultimately, this saved both time and money for the client.

 

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Solutions Highlights

  • Hot Applied Built Up Roofing: 13,400 square feet of Siplast Built Up Roofing

Project At-A-Glance

  • Client GLY Construction
  • Location Seattle, WA
  • Groundbreaking July 2013 (Renovation)
  • Full Completion September 2013
  • Owner L&B Property Investment
  • Architect Ron Wright & Assoc.
  • Snyder Estimator

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