today. The intermediate sites were closed in 1963 due to the advancements in radar technology. Point Lay was closed in 1994 and Wainright in 2007 due to soil erosion & budget concerns. The closed sites were remediated by the Air Force around 1998, removing all abandoned military structures and returning the site to a natural condition. Current status Today the site is controlled by the PACAF's 611th Air and Space Operations Center, based at Elmendorf AFB. The site is generally unattended; a few civilian contractors access the site by former support airstrip, now the Cape Lisburne LRRS Airport and provide maintenance and support when needed to maintain the radar system. Site is currently manned by contractors to maintain the runway, operate the power station and perform basic maintenance to the radar, buildings and supporting infrastructure. Air Force units and assignments Units 711th Aircraft Control and Warning Squadron Activated on 8 December 1953 Inactivated on 1 November 1983 Assignments 160th Aircraft Control and Warning Group, 8 December 1952 548th Aircraft Control and Warning Group, 5 February 1953 11th Air Division, 18 April 1953 5001st Air Defense Group 20 September 1954 10th Air Division, 1 October 1955 5060th Aircraft Control and Warning Group, 1 November 1957 11th Air Division, ca. 1 July 1959 5070th Air Defense Wing, 1 August 1960 Alaskan Air Command, 1 November 1961 531st Aircraft Control and Warning Group (later 11th Tactical Control Group, 11th Tactical Control Wing, 11th Air Control Wing, 611th Air Operations Group, 611th Air and Space Operations Center) 15 July 1977 References External links Alaskan Air Defenses Information for Cape Lisburne AFS, AK The Dew Line Installations of the United States Air Force in Alaska Radar stations of the United States Air Force Buildings and structures in North Slope Borough, Alaska 1953 establishments in Alaska Military installations established in 1953 Military installations closed in 1983