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
Murtala Muhammed International Airport to the new international airport when it was ready while domestic operations moved to the Ikeja Airport, which became the domestic airport. The domestic operations were relocated to the old Lagos domestic terminal in 2000 after a fire. A new domestic privately funded terminal known as MMA2 has been constructed and was commissioned on 7 April 2007. During the late 1980s and 1990s, the international terminal had a reputation of being a dangerous airport. From 1992 through 2000, the US Federal Aviation Administration posted warning signs in all US international airports advising travelers that security conditions at Lagos Airport did