Illinois Route 155 is an east–west state highway in southwestern Illinois

Illinois

Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

. It runs from Fort de Chartres

Fort de Chartres

Fort de Chartres was a French fortification first built in 1720 on the east bank of the Mississippi River in present-day Illinois. The Fort de Chartres name was also applied to the two successive fortifications built nearby during the 18th century in the era of French colonial control over...

 - outside of Prairie du Rocher

Prairie du Rocher, Illinois

Prairie du Rocher is a village in Randolph County, Illinois, United States. Founded in the French colonial period in the American Midwest, the community is located near bluffs that flank the east side of the Mississippi River along the floodplain often called the "American Bottom".Prairie du...

 - to Illinois Route 3

Illinois Route 3

Illinois Route 3 is a major north–south arterial state highway in southwestern Illinois. It has its southern terminus at Cairo Junction at the intersection of Interstate 57 and U.S. Route 51, and its northern terminus in Grafton at Illinois Route 100...

 in Ruma

Ruma, Illinois

Ruma is a village in Randolph County, Illinois, United States. The population was 260 at the 2000 census.-Geography:Ruma is located at .According to the United States Census Bureau, the village has a total area of , all of it land....

. This is a distance of approximately 10.81 miles (17.4 km).

Route description

Illinois 155 serves as a spur from Illinois Route 3

Illinois Route 3

Illinois Route 3 is a major north–south arterial state highway in southwestern Illinois. It has its southern terminus at Cairo Junction at the intersection of Interstate 57 and U.S. Route 51, and its northern terminus in Grafton at Illinois Route 100...

 through Prairie du Rocher and on to Fort de Chartres. It is recognized as a spur of the Great River Road

Great River Road

The Great River Road is a collection of state, provincial, federal, and local roads which follow the course of the Mississippi River through ten states of the United States...

. It is also part of the Lincoln Heritage Trail

Lincoln Heritage Trail

The Lincoln Heritage Trail is a designation for a series of highways in the U.S. states of Illinois, Indiana and Kentucky that links communities with pre-presidential period historical ties to U.S...

. Illinois 155 is a two-lane road from Fort de Chartres all the way to Illinois 3.

History

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