Clark team picked for $470M Sea-Tac project

Journal Staff, July 10, 2015, Seattle Journal of Commerce

A 960-foot-long bridge will connect the South Satellite and the International Arrivals Facility.

Clark Construction Group, which opened a Seattle office about a year ago, won a “progressive” design-build contract for the 385,000-square-foot International Arrivals Facility at Sea-Tac Airport.


The contract could be worth up to $470 million.


An industry source said the value of the contract will be refined and a final figure negotiated by Thanksgiving.


The Port of Seattle’s website says the port commission is expected to make a decision on the design-build team’s proposal around that date.


Selection was based on qualifications and a set target value, according to the source.


Clark’s team has SOM and The Miller Hull Partnership as architects; Arup as mechanical/electrical/plumbing engineer; KPFF as structural engineer; and MKA as civil engineer.


Though little of the design work has been done so far, the source said the project will have an “iconic” 960-foot-long aerial walkway connecting the South Satellite to the new arrivals facility near Concourse A. Clark built Concourse A in 2004.


The bridge will have a 650-foot span that allows taxiing aircraft to pass below. It must be erected in less than a week to minimize impacts on the active taxiway below.


Atkinson Construction, a local Clark division focused on civil construction, could build the bridge.


Initial work is expected to begin in mid- to late 2016, and the source said construction will be “visible” by early 2017.


The port expects the arrivals facility to open in early 2019.


Here are the two other shortlisted teams competing for the contract: PCL Construction Services and Skanska with HNTB and SRG; and Balfour Beatty with Gensler.


The port says the new facility will allow for a single bag-claim process, eliminating the need for international passengers to ride a train to baggage claim and reducing the minimum passenger connection time from 90 to 75 minutes.


The port website lists other benefits:


  • Peak-hour capacity will increase from 1,200 passengers to 1,900 passengers.


  • Seven gates for international aircraft will be added to the existing 11.


  • 10 passport check booths and kiosks will be added to the existing 30.


  • The number of baggage carousels will increase from four to six.



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