In response to longstanding FAA concerns that the airport's air traffic control tower, located atop Terminal 2, could not withstand a major earthquake, on July 9, 2012, crews broke ground for a new torch-shaped tower. The new tower is located between Terminals 1 and 2, and the base of the tower building contains passages between the two terminals for passengers both pre- and post-security screening, which dictated the narrow tower base. Originally scheduled for completion in the summer of 2016 at a cost of $102 million, the new tower began operations on October 15, 2016.