{{Short description|State highway in western Illinois, US}} {{Use American English|date=April 2025}} {{Use mdy dates|date=January 2025}} {{Infobox road | state=IL | type=IL | maint=IDOT | route = 108 | map = {{maplink|frame=yes|plain=yes|frame-align=center|frame-width=290|frame-height=260|type=line|raw={{Wikipedia:Map data/Wikipedia KML/Illinois Route 108}}}} | map_custom = yes | map_notes = IL 108 highlighted in red | length_mi = 54.06 | length_round = 2 | length_ref = <ref name=t2>{{cite web |author=Illinois Technology Transfer Center |url=http://www.dot.state.il.us/gist2/select.html |title=T2 GIS Data |accessdate=2007-11-08 |year=2006}}</ref> | direction_a = West | terminus_a = {{Jct|state=IL|IL|100}} in Kampsville | junction = {{Jct|state=IL|US|67}} in Carrollton | direction_b = East | terminus_b = {{Jct|state=IL|I|55}} in Raymond | counties = Calhoun, Greene, Macoupin, Montgomery | established = 1924<ref name=n9jig>Carlson, Rich. [http://www.n9jig.com/101-120.html Illinois Highways Page: Routes 101 thru 120]. Last updated March 15, 2005. Retrieved April 20, 2006.</ref> | previous_route = 107 | previous_type=IL | next_type=IL | next_route = 109 }} '''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 {{convert|54.06|mi|km|2}}.<ref name="t2" />
== Route description == left|thumb|IL 108 in Kampsville, approaching IL 100/IL 96 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.<ref>Greene County, Illinois. [http://www.rklwebs.com/greenecounty/site/ferry.htm Kampsville Ferry]{{Dead link|date=January 2020 |bot=InternetArchiveBot |fix-attempted=yes }}. Retrieved April 20, 2006.</ref>
== History == SBI Route 108 was established in 1924. Its routing has not changed since its establishment.
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== Major intersections == {{Jcttop|length_ref=<ref name="Google Maps">{{Google Maps |url=https://www.google.com/maps/dir/39.2991039,-90.6107451/39.2780786,-89.6422352/@39.2266163,-90.4132643,10z/data=!3m1!4b1!4m2!4m1!3e0 |title=Overview Map of IL 108 |access-date=February 28, 2017}}</ref>}} {{ILint |county=Calhoun |location=Kampsville |mile=0.00 |road={{Jct|state=IL|IL|100|GRR-Spur||IRR||IL|96|to4=yes|dir2=south|city1=Hardin|city2=Pearl}} |notes=Western terminus of IL 108 }} {{Jctbridge |river=Illinois River |mile=0.2 |bridge={{jct|extra=ferry}} Kampsville Ferry<br>{{Jct|state=IL|GRR-Spur||dir1=ends}} }} {{ILint |county=Greene |cspan=2 |location=Carrollton |mile=11.4 |road={{Jct|state=IL|US|67|name1=Fifth Street|city1=Jerseyville|city2=Jacksonville}} |notes= }} {{ILint |location=Rockbridge Township |ctdab=Greene |mile=22.0 |road={{Jct|state=IL|IL|267|city1=Medora|city2=Jacksonville}} |notes= }} {{ILint |county=Macoupin |cspan=4 |location=Western Mound Township |ctdab=Macoupin |lspan=2 |type=concur |mile=31.1 |road={{Jct|state=IL|IL|111|dir1=north|city1=Hettick}} |notes=Begin/end concurrency with IL 111 }} {{ILint |type=concur |mile=32.0 |road={{Jct|state=IL|IL|111|dir1=south|city1=Chesterfield}} |notes=Begin/end concurrency with IL 111 }} {{ILint |location=Carlinville |lspan=2 |type=concur |mile=41.0 |road={{Jct|state=IL|IL|4|dir1=north|city1=Springfield|name1=North Broad Street}} |notes=Begin/end concurrency with IL 4 }} {{ILint |type=concur |mile=41.7 |road={{Jct|state=IL|IL|4|US-Hist|66|dir1=south|city1=Gillespie}} |notes=Begin/end concurrency with IL 4, alternate Route of US 66 }} {{ILint |county=Montgomery |cspan=2 |location=Zanesville Township |ctdab=Montgomery |lspan=2 |mile=53.76 |road={{Jct|state=IL|US-Hist|66}} }} {{ILint |mile=54.06 |road={{Jct|state=IL|I|55|city1=East St. Louis|city2=Springfield}} |notes=Exit 60 (I-55); eastern terminus of IL 108 }} {{jctbtm|keys=concur}}
== References == {{reflist}}
==External links== {{Attached KML|display=title,inline}} {{commons category|Illinois Route 108}} * [https://web.archive.org/web/20121006150842/http://highwayexplorer.com/il_EndsPage.php?id=1108§ion=1 Illinois Highway Ends: Illinois Route 108]
108 Category:Transportation in Calhoun County, Illinois Category:Transportation in Greene County, Illinois Category:Transportation in Macoupin County, Illinois Category:Transportation in Montgomery County, Illinois