 The hope was that if an inland line was later built, these would also act as branch lines, giving the towns railway connections to the capital.In Nordenes, it was proposed that both Arendal and Grimstad would have a branch line, which would connect somewhere north of towns, and continue northwards into the interior.In 1891, an agreement was reached between local politicians to build a line from the lake Nisser through Åmli and Moripen to Messel, where the line would branch to Grimstad and Arendal.