DPR Construction completed a week-long erection of the Phoenix-Mesa Gateway Airport air traffic control tower with a two-piece prefabricated cab in August. After the initial 206,000-lb, prefabricated steel bulge pick, the structure was topped off with the 110,000-lb cab. The two critical crane picks marked the topping off of the largest single project in the airport’s history.
The team also was challenged with a tight tolerance for the precast elevator shaft that extended through the bulge. The 30-ft-tall shaft had less than 1 in. of clearance on three sides.