Illinois Route 161

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Illinois Route 161 marker

Illinois Route 161
Route information
Maintained by IDOT
Length: 67.24 mi[2] (108.21 km)
Existed: 1926[1] – present
Major junctions
West end: St. Clair Avenue in Fairview Heights
  I-64 in New Baden
US 51 in Centralia
I-57 in Kell
East end: IL 37 in Kell
Counties: St. Clair, Clinton, Marion
Highway system
IL 160 IL 162

Illinois Route 161 (abbreviated IL 161) is an east–west highway with its western terminus at St. Clair Avenue in Fairview Heights and its official eastern terminus at Illinois Route 37 near Kell. This is an official distance of 67.24 miles (108.21 km).[2]

The road continues, as various county routes, eastbound beyond Illinois 37 to Allendale at Illinois Route 1.

Route description[edit]

Illinois 161 runs along portions of what once was U.S. Route 50 west of Scott Air Force Base. East of Belleville, it becomes a rural, two-lane surface road. Inside the Centralia city limits, Illinois 161 is coupled into east bound Noleman Street and west bound McCord Street.


SBI Route 161 originally ran from Belleville to Carlyle; in 1941 it was rerouted from Carlyle to IL 37 at its current eastern end, replacing IL 182.[3] In 1964 it was extended west to Fairview Heights.[1]


  1. ^ a b Carlson, Rich (2005-04-15). "Illinois Highways Page: Routes 161 thru 180". Retrieved 2006-07-22. 
  2. ^ a b Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08. 
  3. ^ "New State Road Map Completed". Edwardsville Intelligencer. March 22, 1941. p. 2. Retrieved November 6, 2015 – via  open access publication - free to read