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Published August 15, 2026 at 8:00 PM

Updated August 21, 2026

Site work, new construction and addition to a transportation facility in Seattle, Washington. Conceptual plans call for the addition of a 150,000-square-foot transportation facility.

The Port of Seattle has approved initial funding for a major modernization and expansion of the S Concourse at Seattle-Tacoma International Airport. The approximately $2.5 billion project will add 150,000 square feet to the existing concourse through a phased construction programme. Major construction is expected to begin in 2027, with work continuing in phases through final completion in 2034.

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$2,500,000,000.00

Public - State/Provincial

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February 2, 2027

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17801 International Blvd, Seattle, WA

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