The airfield was built with three intersecting concrete runways and two hangars, situated northwest and southeast of the perimeter track. The communal accommodation for the personnel was located to the south of the airfield. The bomb stores were positioned around the area of Honey Pot Lane.
RAF North Witham was allocated to the United States 9th Air Force which arrived late in 1943. The airfield was then renamed Station 479. The IX Troop Carrier Command (TCC) were operational from here, as well as the US 1st Tactical Air Depot (TAD) which prepared and distributed the C47s and C-53s of IX TCC.
March 1944 saw the arrival of IX Pathfinder School (PFS). The C-47s of the school were equipped with Gee navigational equipment and radars allowing them to drop pathfinder paratroopers accurately in drop zones ahead of main contingents and set up radio beacons on the ground. Their signals would then be picked up by the navigators of the C-47s to guide the main boy of the airborne troops to the drop zone. With only one C-47 being lost, the mission they carried out in France shortly after midnight on 6 June 1944 was extremely successful.
By the end of 1944, the American forces had departed for Europe as part of the Allied advance there. When the war ended in Europe, RAF Maintenance Command took over the site until the last Maintenance Unit left in 1956.
Most runways still exist today and are part of a walking trail around the former airfield, which is open to the public. Some of the original buildings, including the watch tower, are still intact. The perimeter tracks around the runways are mostly still there and form trails. An information panel close to the entrance off the main road provides further information.