Illinois Route 123

Illinois Route 123
Route information
Maintained by IDOT
Length: 33.72 mi[2] (54.27 km)
Existed: 1924[1] – present
Major junctions
West end: IL 125 near Pleasant Plains
East end: I-55 near Williamsville
Location
Counties: Sangamon, Menard
Highway system

Illinois state highway system
Illinois Tollway system

← IL 122 US 124 →

Illinois Route 123 (IL-123) is an east–west state highway in central Illinois, USA. 33.72 miles (54.27 km) long,[2] it stretches from Interstate 55 exit #109 at Williamsville to Illinois Route 125 near Pleasant Plains.

Contents

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.[1]

Major intersections

County Location Mile Destinations Notes
Menard
   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 I-55 – Springfield, Lincoln Eastern terminus of IL 123
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. ^ a b Carlson, Rich. Illinois Highways Page: Routes 121 thru 140. Last updated March 15, 2005. Retrieved May 9, 2006.
  2. ^ a b Illinois Technology Transfer Center (2006). "T2 GIS Data". http://www.dot.state.il.us/gist2/select.html. Retrieved 2007-11-08.