 One went from Grimstad via Arendal to Nisser via Nelaug, the other were the Kragerø Line and a line connecting to Risør.It was followed up by a proposal for a line from Kongsberg—then terminus of the Sørland Line—to Grovane, which had a railway to Kristiansand.The proposed line would have branches to Skien, Kragerø, Arendal, Åmli, Risør, Grimtad, Tvedestrand and Notodden.