The self-owned concrete plant ensures there will be no problems with the product's quality or its delivery, says Cruz. To give the construction companies more control over concrete production, the contractor has installed seven Schwing Stetter rock-crushing trucks.

Near the plant, a 2,000-cu-m area has been set aside for workers to cut and fold steel. Today, the jobsite is home to 30 permanent machines, including three cranes; at the peak, there will be 25 cranes working at the same time.

In the second half of 2013, the apartments at the athletes' village will start to be sold for occupancy after the Games. Outfitted with clubhouses and other amenities, the buildings will target high-income residents.