The Brevik Line (Norwegian: Brevikbanen) is a 10-kilometer (6.2 mi) railway which runs from Eidanger to Brevik in Porsgrunn, Norway. The single track and electrified branch line of the Vestfold Line is exclusively used for freight traffic to Norcem Brevik hauled by CargoNet.First proposed in 1875, the Norwegian State Railways (NSB) started construction in 1892, allowing the railway to be officially opened on 15 October 1895.