Federal Center South Building Redevelopment

Fire Station #2 Renovation
April 28, 2017
Legacy at Pratt Park (1800 South Jackson Project)
April 28, 2017
Location: Seattle, Washington

This $72 million project involved construction of the highly flexible and sustainable 209,000-square-foot regional headquarters for the U.S. Army Corps of Engineers Northwest District. The work consisted of site development, foundations, structural steel and timber framing, concrete structure, and entire interior build-out. The state-of-the-art facility is expected to merit a LEED gold certification and become the region’s most energy-efficient air-conditioned building. Green elements include extensive use of natural daylight; conversion of existing hardscape into low-impact sustainable green space; use of recycled timbers and other building materials; a 25,000-gallon rainwater harvesting cistern; a rooftop system that captures and recirculates heat; and phase change material, a gel substance that speeds up cooling and heating in the building. The project won first place for a high-performance building from the Sustainable Buildings Industry Council, and the American Institute of Architects honored it as one of the top ten green projects in the United States.

ORA’s testing and inspection scope of work included the following items:
  • Subgrade evaluation
  • Fill placement and compaction
  • Infiltration testing
  • Pipe pile welding
  • Structural steel fabrication and erection
  • Nondestructive testing of welds
  • Reinforced concrete
  • Column base plate grouting
  • Reinforced masonry
  • Pull testing
  • Bar lock couplers
  • Anchor bolt installation
  • Epoxy grouting of rebar dowels and anchor bolts
  • Lateral framing