Hauerseter – Gardermoen Line Hauerseter – Gardermoen Line ( ) , previously also known as the Gardermoen Line , is an abandoned , branch line in Ullensaker , Norway , which connected Hauerseter Station on the Trunk Line to Gardermoen Air Station . The line had three branches at Gardermoen , one of which led to Trandum . Plans for a branch existed from the early 20th century , but the line was not built until the German occupation of Norway in 1940 , when the Luftwaffe upgraded Gardermoen . The line opened on 13 June 1941 . After the end of the Second World War in 1945 the line was transferred to the Royal Norwegian Air Force . The line saw limited passenger and cargo traffic , mostly the haulage of aviation fuel . From the 1970s the line fell out of general use , although it was kept in case of war . Route . The railway line was long and ran from Hauerseter Station on the Trunk Line to Gardermoen Air Station . The line was always owned as a military railway , at first by the Luftwaffe and later by the Royal Norwegian Air Force . It was trafficked by the Norwegian State Railways , but unlike the Trunk Line it was not electrified . The lines started south of Hauerseter Station and crossed Trondheimsveien and then crossed the Sand – Li road near Vilberg . It then crossed Blikkvegen and ran downhill to it reached a branch named Lillestrøm . The northern branch ran to Trandum , then central branch to Oplandsleiren and the southern crossed Nyvegen before running into the air station . The only facility which resembled a station was a combined loading deck and warehouse at the air station ' s Hangar C . History . Plans for a railway to Gardermoen had first arisen after the turn of the 20th century . These had originally called for a line to run from Jessheim Station on the Trunk Line , but the plans had been abandoned in part because there was no bridge over Kvændalen . Construction of the line was instead carried from Hauerseter . During the German occupation of Norway during the Second World War , the Luftwaffe commenced major upgrades to Gardermoen Air Station , and saw the strategic value of a railway line to the installation . The line was taken into use on 13 June 1941 . The Hauerseter – Gardermoen Line was built by the German Luftwaffe who had taken over the military facilities at Gardermoen Air Station . During World War II the line was exclusively used for military transport . At first it was used to freight aviation fuel and general cargo , and later it also served military personnel . The railway also allowed the Luftwaffe to have their ammunition depot for Gardermoen located at Hauerseter . Transshipment and other operations resulted in twenty - five people working at Hauerseter Station during the war , compared to seven in 1957 . After the war ended in 1945 , the line was taken over by the Norwegian Armed Forces . The large number of conscripts made the air force establish passenger traffic on the line in 1947 , using Class 87 diesel multiple units . The service was quickly terminated , probably the same year . There were also some attempts to fly civilian air passengers , but these were also soon abandoned , largely because of the poor condition of the track . After this , the line was used only for freight transport , mostly military supplies , fuel and air cargo . It was also used during military practices . A spur line was built to Rustad Sawmill in 1974 , introducing civilian traffic . At the end of the 1970s , the military abandoned regular traffic on the line . The southern track was pulled up by enthusiasts from the Urskog – Høland Line , which used the track for their heritage railway . The middle track was lifted to make room for a firing range . However , the military has retained maintenance of the line so that it at any time is in operational condition , as it had high strategic importance should war break out . During the construction of the European Route E6 , it was decided that a new bridge be built over the line , financed by the military budget .