The troubles experiencing the venture group on the $968 million Intercontinental Arrivals Facility venture at Seattle-Tacoma Intercontinental Airport could barely have been much more intense.
Topping the list of issues on the task was a middle-of-the-night installation of a 3 million-pound glass and steel walkway during driving rain when Boeing 747s landed and taxied nearby.
The 780-foot-lengthy walkway, with 85 ft of vertical clearance and a 610-foot-lengthy clear span between footings —adequate room for vast-entire body plane to taxi underneath — was intended to link the airport’s South Satellite building to the new Intercontinental Arrivals corridor.
Transferring and hoisting the walkway’s 320-foot-lengthy center segment into put was a complex endeavor that necessary months of setting up, higher-tech resources and coordination between all stakeholders.
In purchase to enhance basic safety and minimize the impact to ongoing airport functions, the span was fabricated at a nearby airport cargo area. This technique