Illinois Route 155

Illinois Route 155 is an eastwest state highway in southwestern Illinois. It runs from Fort de Chartres – outside of Prairie du Rocher – to Illinois Route 3 in Ruma. This is a distance of approximately 10.81 miles (17.40 km).[1]

Illinois Route 155
Route information
Maintained by IDOT
Length10.81 mi[1] (17.40 km)
Major junctions
West endFort de Chartres State Historical Site in Prairie du Rocher
East end IL 3 in Ruma
Highway system
I-155IL 156

Route description

Illinois 155 serves as a spur from Illinois Route 3 through Prairie du Rocher and on to Fort de Chartres. It is recognized as a spur of the Great River Road. It is also part of the Lincoln Heritage Trail.[3] Illinois 155 is a two-lane road from Fort de Chartres all the way to Illinois 3.


Illinois Route 155 was established in 1924 with the second batch of SBI routes. Its route has not changed since 1924.

Major intersections

The entire route is in Randolph County.

0.000.00Fort de Chartres State Historical Site
Ruma10.8117.40 IL 3 / Great River Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. Illinois Technology Transfer Center (2007). "T2 GIS Data". Retrieved 2007-11-08.
  2. Carlson, Rich. Illinois Highways Page: Routes 141 thru 160. Last updated April 15, 2005. Retrieved April 1, 2006.
  3. Burmaster, Bill. Illinois State Route 155 Retrieved April 1, 2006.
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