 The line includes the Stavne Bridge over the river of Nidelva, Lerkendal Station and the long Tyholt Tunnel.Construction of the line started during the Second World War by the "Wehrmacht", the German military occupying Norway, in an attempt to make the railway in Trondheim resistant to sabotage.Because of the long construction time of the tunnel, tracks were laid in the city streets, but neither route was completed before the end of the war.