30th Street Southeast in Harmony Township, North Dakota

30th Street Southeast in Cass County is a single-lane, unpaved track. It runs in an east-west direction starting from 158th Avenue Southeast and crosses 159th Avenue Southeast, 160th Avenue Southeast, 161st Avenue Southeast and 162nd Avenue Southeast and ends at County Road 11. It connects Berlin Township, Harmony Township and Rush River Township. 30th Street Southeast also exists in Tower Township, Cornell Township, Ayr Township, Amenia Township and Empire Township.