War Memorial Stadium was built in 1950 with an original capacity of 20,000 fans; the current capacity is 29,181 after the completion of 2009-2010 stadium upgrades. It is the highest Division I FBS football stadium in the nation; the elevation of its playing field exceeds 7,200 feet (2,195 m) above sea level. The playing surface was natural grass until 2005, when infilled artificial turf was installed.