The Conco Companies is returning to Seattle-Tacoma (Sea-Tac) Airport once again teaming up with Clark Construction. Conco’s Northwest division will provide concrete services to build the 450,000 sq. ft. International Arrivals Facility (IAF) building on the east side of the South Terminal Expansion (Concourse A). The new Arrivals facility will help the airport manage the increasing demand for international flights. The project also includes a 900 ft long aerial passing bridge over the existing taxi lane at a height of 85 feet (allowing planes to travel beneath) to connect arriving international passengers at the south satellite terminal to the top of Concourse A and the new space.

The aerial bridge components will be prefabricated off-site and installed within a seven-day time frame. The construction activities are taking place in an active area of the airport, requiring an additional level of coordination – and patience – for all involved. Upcoming project milestones include (all scheduled to be complete by the end of February):

• PW-1 Concourse A Concrete Core Bridge Support Completion
• IAF Slab on Grade Completion
• PW-4 South Satellite Concrete Core Bridge Support Completion

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