Portland International Airport–Main Terminal
Portland, OR-
Bldg system
Mass Timber
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No. Of Stories
1
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Sq. footage
400,000
The showpiece of the new main terminal for the beloved Portland International Airport is a stunning mass timber roof that both celebrates Oregon’s history of forest product innovation and serves to consolidate 80 years of expansion and renovation into one floorplate. Comprised of approximately 3.3 million board feet Douglas Fir, the roof supports multiple goals: cost, constructability, sustainability, resiliency, and regional identity. The project team is regionally sourcing more than 2.6 million board feet of glulam beams and heavy timber structure, and over 400,000 square feet of mass plywood panels from Oregon forests and neighboring Washington state forests.
The roof is being fully prefabricated over the course of a year, with construction divided into 18 pieces called “cassettes.” Each cassette includes mass timber and steel superstructure, skylights up to 70 ft long by 30 ft wide, insulation, mechanical components, and finishes. Once prefabrication is complete, the cassettes, the largest of which is 220 ft by 110 ft, will be installed over several nights in 2022, during a four-hour window when there are no passengers or occupants below the construction area.
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Construction Type:
III-B
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Building Type:
Transportation (Airports, Train or Subway Stations)
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Material Types:
Mass Timber, Glue-Laminated Timber (GLT or glulam)
Companies Involved:
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ZGF Architects
Architect
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Code Unlimited
Consultant
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KPFF Consulting Engineers
Structural Engineer
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Arup
Structural Engineering, Acoustics, and Sustainability
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Skanska
General Contractor
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Timberlab
Post Fabrication of Timber
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Swinerton
Timber Installation
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Freres Engineered Wood
MPP supplier
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Simpson Strong-Tie
Fasteners and Connectors
Individuals Involved:
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Ayush Vaidya
Fire and Life Safety Analyst
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Amedeo Gallucci
Building and Fire Code Consultant
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Reid Zimmerman
Technical Director
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Chris Pitt
Structural Project Manager
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Craig Totten
Engineer-of-Record
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Mark Chubb
Building and Fire Code Consultant
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Kion Nemati
Structural Engineer
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Zachary Brehm
Sr. Project Manager
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Steve Clem
SVP Preconstruction
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Graham Montgomery
Technical Director