The Kona Airport Traffic Control Tower replaces a nearly 40-year-old deteriorating wood-framed tower. At 118 feet tall, the modernized facility nearly doubles the height of the former structure, finally offering a full line of sight for all airfield movement areas. Located amid a field on lava, the 3,780-square-foot decagon tower is constructed of cast-in-place concrete walls and contains a control room, two stairs, and an elevator. It sits atop a 7,177-square-foot base building that contains support offices.
Nordic PCL decided to fabricate the cab-level structural steel on the ground, rather than constructing it in place. Fabricating on the ground meant the entire cab could be erected in a single lift instead of multiple lifts of individual components. This method shaved approximately a month off the original schedule and increased safety by requiring fewer people working at high elevations.
Impressed with the quality of work and speed of completion on a project this large, the client gave final approval immediately after final inspection, and commended the project team on the excellence of their safety program.