CityCenter is an ambitious, $7.8 billion, high-density mixed-use project developed by MGM Resorts International on 67 acres between the Bellagio and Monte Carlo resorts. Reported to be the largest privately funded construction project in the U.S., CityCenter consists of Aria, a 61-story, 4004-room gaming resort; two nongaming hotels, the Vdara Hotel and Spa and the Mandarin Oriental; Veer Towers, which house 670 condominium residences; Crystals, a 500,000-square-foot retail and entertainment complex; as well as a host of low-rise service and support buildings. It is also one of the largest sustainable developments in the world, with six Gold LEED certifications from the U.S. Green Building Council.
The development represented an enormous logistical and coordination challenge, because all of the major buildings were constructed more or less simultaneously and opened together in December 2009. The project used more than 1 million cubic yards of concrete, produced by Rinker Materials, Houston. More than 60 mixes were developed, almost all of which include some portland cement replacement with fly ash to meet the requirements of 5000-, 6000-, and 7500-psi compressive-strength decks, and 7000-, 8000-, and 10,000-psi compressive strengths for vertical applications. Learn more about the CityCenter project.