A new midfield passenger terminal, which cost $1.1 billion, opened in 2008 between the airport's two parallel runways, southwest of the previous terminal and the crosswind runway. A new FAA Air Traffic Control Tower (ATCT) and Terminal Radar Approach Control (TRACON) building, second tallest in the United States, opened in April 2006, the first component of the long-planned midfield complex. The Weir Cook Terminal itself opened for arriving flights on the evening of November 11, 2008, and for departures the following morning. HOK was its master designer, with AeroDesign Group (a joint venture among CSO Architects, SchenkelShultz Architecture and ARCHonsortium) serving as architect of record. Aviation Capital Management (Indianapolis), a subsidiary of BSA LifeStructures, was the airport's program manager. Hunt/Smoot Midfield Builders, a joint venture of Hunt Construction Group and Smoot Construction was the construction manager. Thornton Tomasetti was the terminal's structural engineer along with Fink, Roberts and Petrie. Syska Hennessy was the mechanical, electrical, & plumbing engineer.