U.S. Federal Route 51 is a north-south highway in Alexander County. It runs from the extreme southern tip of the state and county, north along the eastern edge. U.S. Rt. 51 passes through the following towns in Alexander County. Cario
Future City
U.S. Rt. 51 is multi-plexed in Alexander County. U.S. Rt. 60, south of Cario. U.S. Rt. 62, south of Cario.
NB U.S. Rt. 51; WB U.S. Rt. 60/62 crossing the Ohio River. SB U.S. Rt. 51; EB U.S. Rt. 60/62 at the base of the Ohio River Bridge. A junction marker on EB U.S. Rt. 60/62. NB U.S. Rt. 51 at the Illinois Welcome Sign. NB U.S. Rt. 51 in Cario. NB U.S. Rt. 51 north of Cario. The steel wall ahead is a flood gate. NB U.S. Rt. 51 near Future City. SB U.S. Rt. 51/IL St Rt 3 near Future City. A BGS on NB I-57. A BGS on SB IL St Rt 3. NB I-57/U.S. Rt. 51 near Urbandale.