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Architecture & Engineering


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June 15, 2026

C Concourse expansion levels up the traveler experience

  • The $399 million project opened Thursday at Seattle Tacoma International Airport.
    • By EMMA LAPWORTH
    A/E Editor

    Photo courtesy Port of Seattle/SEA Airport [enlarge]
    On the concourse level, a sculptural and structural ‘tree’ extends upward in a fluid gesture to a connected 30-foot-high ceiling with a grand staircase below.

    Just in time to welcome an influx of visitors (and participants) for the FIFA Men’s World Cup, the Port of Seattle on Thursday opened the expansion of the C Concourse at Seattle Tacoma International Airport.


     
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