IL 123 Travel Info
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Illinois Route 123 (IL-123) is an east–west state highway in central Illinois, USA. 33.72 miles (54.27 km) long, it stretches from Interstate 55 exit #109 at Williamsville to Illinois Route 125 near Pleasant Plains.
All of IL-123's route is contained within Sangamon and Menard counties. Major towns located on or adjacent to IL-123 include Athens, Petersburg, ... more
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