Chattanooga Metropolitan Airport, located in Hamilton County, Tennessee, is a county-owned airport serving the Chattanooga, TN metropolitan area. In the fiscal year 2012, the airport had 1,485,000 enplanements and 109,500 aircraft operations, making it the 25th busiest airport in the United States. The airport has four runways: 3 Runway 13L/31R is 6,001 by 150 feet (1,829 x 46 m), 3 Runway 21L/39R is 5,499 by 150 feet (1,646 x 46 m), and 2 Runway 18R/36L are 4,999 by 100 feet (1,529 x 30 m). In addition to commercial flights and general aviation services, the airport operates the Solent Aviation Center which offers helicopter services and instruction.