A major $250 million expansion of Concourse D at Nashville International Airport, part of the New Horizon Program. This 190,000 SF extension includes five new gates, new concession areas, art spaces, restrooms, and passenger hold rooms. High-end finishes ensure seamless integration with the existing concourse. CSBD, in partnership with Fentress Architects, is providing architectural and construction administration services to ensure the projects meets LEED v4 BD+C certification standards. The expansion is designed to improve passenger movement and capacity while keeping the airport fully operational.