Illinois Route 108
|Maintained by IDOT|
|Length:||54.06 mi (87.00 km)|
|Existed:||1924 – present|
|West end:||IL 100 in Kampsville|
|US 67 in Carrollton|
|East end:||I-55 in Raymond|
|Counties:||Calhoun, Greene, Macoupin, Montgomery|
Illinois Route 108 is an east–west highway in western Illinois. Its western terminus is at Illinois Route 100 in Kampsville, and its eastern terminus is at Interstate 55 in Zanesville Township near Raymond. This is a distance of 54.06 miles (87.00 km).
Illinois 108 is a two-lane undivided surface road for its entire length. In Kampsville, the Kampsville ferry operates across the Illinois River and connects the Kampsville segment of Illinois 108 with its remainder. The ferry is free and runs 24 hours a day, seven days a week. It is one of two permanent ferries still operated by the Illinois Department of Transportation; the other is located in Grafton near the intersection of Illinois 100 and Illinois Route 3.
SBI Route 108 was established in 1924. Its routing has not changed since its establishment.
|Calhoun||Kampsville||0.00||0.00||IL 100 to IL 96 – Hardin, Pearl||Western terminus of IL 108|
|Illinois River||Kampsville Ferry|
|Greene||Carrollton||US 67 (Fifth Street) – Jerseyville, Jacksonville|
|Rockbridge Township||IL 267 – Medora, Jacksonville|
|Macoupin||Western Mound Township||IL 111 north – Hettick||Begin/end concurrency with IL 111|
|IL 111 south – Chesterfield||Begin/end concurrency with IL 111|
|Carlinville||IL 4 north (North Broad Street) – Springfield||Begin/end concurrency with IL 4|
|IL 4 south / Historic US 66 – Gillespie||Begin/end concurrency with IL 4|
|Montgomery||Zanesville Township||I-55 – East St. Louis, Springfield||Exit 60 (I-55); eastern terminus of IL 108|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi