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December 3, 2018

Sea-Tac Airport Concourse D Annex

Photos provided by HOK [enlarge]

The $38.4 million Concourse D Annex has opened at Sea-Tac Airport.

The two-story, 32,400-square-foot building has six gate waiting areas, concessions, charging stations, free Wi-Fi and restrooms.

It has a 7,400-square-foot mezzanine level, a curved roof with skylights and a sloped walkway to the ground level and departing gates.

The annex is designed to complement the Gina Marie Lindsay Arrivals Hall and Concourse A.

It will serve “hardstand” passengers, who have to board shuttles to get to planes in lieu of a loading bridge. The annex uses space more efficiently, reducing the amount of time passengers spend waiting for planes at a gate.

Travelers will cross a bridge from Concourse D to reach the annex.

Owner: Port of Seattle

Architect: HOK

Contractor: The Walsh Group

Structural engineer: Lund Opsahl

Civil engineer: Osborn Consulting

Geotechnical engineer: Hart Crowser

Electrical engineer: Casne Engineering

Mechanical engineer: Notkin Mechanical Engineers

Do you have photos of recent projects? Share them with DJC readers. Send high-resolution images and information to lisa.lannigan@djc.com.

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