Roads of the Mid-South & West > Highways of the State of Illinois > Illinois State Routes 101-199 > Illinois State Route 123
 | Illinois State Route 123 |  |
Illinois State Route 123 is a short, mainly east-west route across Menard County. This provides easy access to the Lincoln-New Salem Sites near Petersburg. In October of 2003, this highway was extened to the east. It now multi-plexes with IL St Rt 29 south to the former alignment of IL St Rt 124, which was pulled back to nine miles north of Sherman. Then it ends now at Interstate 55 in Williamsville. Info on IL St Rt 123 is broken down by county below.
28 October 2009
