Austin Commercial performed full construction services on this 2.7 million square foot project, consisting of six buildings, an1,100-foot underground tunnel that joins the east, west, and central towers, and a vehicle tunnel under O'Connor Boulevard. Phase I of this project included the 24-story central tower, the 16-story west tower, the 6-story bank building, and the 8-story west parking garage. The 25-story tower has two independent slips for cores containing about 10,000 yards of concrete. Phase II included the 14-story east tower and the 8-story east parking garage.