The International Terminal completed a continuous ring of terminals, by filling in the last remaining gap to the west of then-existing terminals. Its geometry required that the terminal structure be built above the main access road, at enormous expense, including building dedicated ramps for connectivity to Highway 101. The design and construction of the international terminal was by Skidmore, Owings & Merrill, Del Campo & Maru Architects, Michael Willis Associates, and built by Tutor Perini (main terminal building), Hellmuth, Obata, and Kassabaum in association with Robin Chiang & Company, Robert B. Wong Architects, and built by Tutor Perini (Boarding Area G), and Gerson/Overstreet Architects and built by Hensel Phelps Construction (Boarding Area A). The contracts were awarded after an architectural design competition.