US Highway 81 in Sun Prairie Township, South Dakota

US Highway 81 in McCook County is a two-lane, asphalted main road. It runs in a north-south direction starting from 244th Street and crosses 245th Street, 246th Street, 247th Street, 248th Street, 249th Street, 250th Street and West Richard Avenue and ends at North Nebraska Street. It connects Salem and Sun Prairie Township. This street is part of the highway "81". US Highway 81 also exists in Union Township and Salem Township.