Illinois Route 123
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|---|---|---|---|---|
| Route information | ||||
| Maintained by IDOT | ||||
| Length: | 33.72 mi[1] (54.27 km) | |||
| Existed: | 1924[2] – present | |||
| Major junctions | ||||
| West end: |
 IL 125 in Pleasant Plains | |||
| East end: |
 I-55 in Williamsville | |||
| Location | ||||
| Counties: | Sangamon, Menard | |||
| Highway system | ||||
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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,[1] it stretches from Interstate 55 exit #109 at Williamsville to Illinois Route 125 near Pleasant Plains.
Route description
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, and Williamsville.
New Salem, the home of Abraham Lincoln in the 1830s, has been reconstructed as Lincoln's New Salem State Historic Site near Petersburg on IL-123.
History
SBI Route 123 was what Illinois 123 is now, plus a road from Ashland south to Alexander at Interstate 72/U.S. Route 36. In 1999, Illinois 123 was truncated on its southern end to Illinois 125. In October 2003, Illinois 123 was extended east to Williamsville, replacing some of Illinois Route 124 in the process as well as all of Sangamon County Route 11.[2]
Major intersections
| County | Location | mi | km | Destinations | Notes |
|---|---|---|---|---|---|
| Menard | | 0.00 | 0.00 | IL 125 – Beardstown, Springfield | Western terminus of IL 125 |
 IL 97 south | Southern end of IL 97 concurrency | ||||
| Petersburg | IL 97 north | Northern end of IL 97 concurrency | |||
| |  IL 29 north – Peoria | Northern end of IL 29 concurrency | |||
| Sangamon | Fancy Creek Township | IL 29 south – Springfield | Southern end of IL 29 concurrency | ||
 IL 124 east – Sherman | Western terminus of IL 124 | ||||
| Williamsville | 33.72 | 54.27 | I-55 – Springfield, Lincoln | Eastern terminus of IL 123 | |
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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References
- 1 2 Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08.
- 1 2 Carlson, Rich. Illinois Highways Page: Routes 121 thru 140. Last updated March 15, 2005. Retrieved May 9, 2006.