Below-grade construction was expected to begin in 2006, and topping out of the buiding is expected in 2009. Tishman was the lead contractor on the late-1960s Twin Towers project, and then it used eight Favelle Favco STD 2700 internal-climbing luffing-jib cranes to help construct the buildings.

Favco STD2700,t he crane model that built the Twin Towers, in its second life as portal based harbour crane.