Illinois Route 123

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.

Illinois Route 123 marker

Illinois Route 123
Route information
Maintained by IDOT
Length33.72 mi[2] (54.27 km)
Existed1924[1]–present
Major junctions
West end IL 125 in Pleasant Plains
East end I-55 in Williamsville
Location
CountiesSangamon, Menard
Highway system
IL 122IL 124

Route descriptionEdit

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.

HistoryEdit

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 intersectionsEdit

CountyLocationmi[3]kmDestinationsNotes
Menard0.000.00  IL 125 – Beardstown, SpringfieldWestern terminus of IL 123
9.415.1  IL 97 southSouthern end of IL 97 concurrency
Petersburg14.423.2  IL 97 northNorthern end of IL 97 concurrency
21.334.3  IL 29 north – PeoriaNorthern end of IL 29 concurrency
SangamonFancy Creek Township27.043.5  IL 29 south – SpringfieldSouthern end of IL 29 concurrency
30.649.2  IL 124 east – ShermanWestern terminus of IL 124
Williamsville33.7254.27   I-55 / Historic US 66 west – Springfield, LincolnEastern terminus of IL 123
  Historic US 66 east – LincolnContinuation beyond IL 123
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

ReferencesEdit

  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". Retrieved 2007-11-08.
  3. ^ Google (March 2, 2017). "Overview Map of IL 123" (Map). Google Maps. Google. Retrieved March 2, 2017.