Hartsfield–Jackson Atlanta International Airport now the airport's second largest carrier. In May 2001 construction of an over fifth runway (10–28) began. It was completed at a cost of $1.28 billion and opened on May 27, 2006. It bridges Interstate 285 (the Perimeter) on the airport's south side, making Hartsfield–Jackson the nation's only civil airport to have a runway above an interstate (although Runway 17R/35L at Stapleton International Airport in Denver, Colorado crossed Interstate 70 until that airport closed in 1995). The massive project, which involved putting fill dirt eleven stories high in some places, destroyed some surrounding neighborhoods and dramatically changed the scenery of
Coutts/Ross International Airport level. It has one runway designated 7/25 with a turf surface measuring . For the 12-month period ending August 23, 2008, the airport had 25 general aviation aircraft operations, an average of 2 per month. Coutts/Ross International Airport Coutts/Ross International Airport is located west of Coutts, Alberta, Canada and west of Sweet Grass, Montana, United States. Ross International Airport is owned by the U.S. state of Montana and is operated by the Montana Aeronautics Division. Its runway is located on the Canada–US border. The airport is classified as an airport of entry by Nav Canada and is staffed by the