To prevent airport disruptions during construction, the contractor utilized a phased schedule and detailed logistical planning. Strategic communication also ensured aligned priorities and stakeholder engagement given the many groups involved in decision-making, from the city of Houston to the airlines, concessionaires and regulatory bodies, among others.

Photo by Cloyce Wall

Construction kicked off in 2018, and though interrupted by the pandemic, the decreased passenger traffic and modifications to flight mixes enabled a modified renovation process on the existing 12 gates and nine gatehouses. As a result, the team was able to limit gate closures to weeks rather than months, minimizing passenger traffic impacts. Just a single gate was closed at a time as well, rather than closing all eight, which further accelerated the schedule. Crews fabricated a 1,100-ft temporary sterile corridor in 11 segments off site, then trucked them across the airfield before being hoisted into place. This limited construction impacts on operating Terminal D gates.

Flexibility was an integral element in the terminal’s design. Four of its six gates can be reconfigured to accommodate either six wide-body or 10 narrow-body aircraft.

Environmental responsibility was another design consideration. Energy-efficient systems and sustainable materials were used throughout. Terminal D now meets LEED Silver requirements.

Photo by Cloyce Wall

A central clerestory and light-filtering screen run the length of the concourse, reducing glare and serving as a signature wayfinding element. Sunlight passing through copper-colored perforations and angled tabs creates dappled patterns reminiscent of a live oak’s shade. Meanwhile, the west-facing curtain wall frames exterior views while shielding interior seating and retail spaces from direct sun. Integrated linear LED fixtures along these openings are individually controlled, cycling through a 24-hour color sequence to support passenger circadian rhythms.

Across 1.7 million worker hours, the team only saw one recordable incident thanks to a comprehensive safety program that utilized the KPA Flex app, a real-time tool for managing safety compliance and communication. The app enabled logging and tracking of safety observations, audits and corrective actions, ensuring risks were identified and addressed. To further enhance oversight, the team implemented OccuCare’s case management system, which supported both prevention and recovery in the event of incidents.

After more than six years of construction, the team delivered IAH’s newest terminal on schedule in October 2024.