Illinois Route 146
|Maintained by IDOT|
|Length||92.93 mi (149.56 km)|
|West end||Route 34 / Route 74 in East Cape Girardeau|
| US 51 in Anna|
I-57 in Anna
US 45 in Vienna
I-24 in Vienna
|East end||IL 1 in Cave-in-Rock|
|Counties||Alexander, Union, Johnson, Pope, Hardin|
Illinois Route 146 (IL 146) is an east–west state highway in the U.S. state of Illinois. It serves the extreme southern region of the state, commonly called Little Egypt or the Illinois Ozarks. IL-146 is 92.93 miles (149.56 km) long. An east–west highway, it serves Hardin County, Pope County, Johnson County, and Union County. These are some of the least-populated counties in Illinois. IL-146 serves two sections of the Shawnee National Forest.
IL-146 generally follows a land route of the Trail of Tears, a trail taken by bands of approximately 9,000 Cherokee who were forced to march through southern Illinois from November 1838 until January 1839 as part of a U.S. government mandated relocation. In 2006, the state of Illinois designated IL-146 as a historic highway and route of the Trail of Tears.
IL-146 passes through an area of Illinois noted for scenic beauty and significant tourist visitation. State-operated parks and recreation areas on or adjacent to IL-146 include, from west to east:
- Union County State Fish and Wildlife Area near Jonesboro
- Trail of Tears State Forest near Jonesboro
- Cache River State Natural Area near Vienna
- Dixon Springs State Park near Dixon Springs
- Rauchfuss Hill State Recreation Area near Golconda
- Rose Hotel State Historic Site in Elizabethtown
- Cave-in-Rock State Park in Cave-in-Rock
SBI Route 146 originally ran from East Cape Girardeau east to Golconda. In 1937 it was extended east to Elizabethtown, replacing a leg of Illinois Route 34. In 1942 the road was extended east to Cave-In-Rock. There have been no changes since 1942.
|Alexander||||0.0||0.0||Route 34 west / Route 74 west – Cape Girardeau||Missouri state line (Bill Emerson Memorial Bridge over Mississippi River)|
IL 3 south / Great River Road (National Route) south / Lincoln Heritage Trail (Southern Branch) – Cairo
|west end of IL 3 / Great River Road / Lincoln Heritage Trail overlap|
IL 3 north / Great River Road (National Route) north / Lincoln Heritage Trail (Southern Branch) – Wolf Lake, Chester, LaRue Pine Hills
|east end of IL 3 / Great River Road overlap|
|||20.8||33.5||IL 127 north – Murphysboro, Bald Knob||west end of IL 127 overlap|
|Jonesboro||23.0||37.0||Lincoln Heritage Trail (Southern Branch) (West Market Street) – Court House||east end of Lincoln Heritage Trail overlap|
|23.3||37.5||IL 127 south – Cairo, Lincoln Memorial Park||east end of IL 127 overlap; traffic circle around city park|
|Anna||25.8||41.5||US 51 – Carbondale, Cairo|
|||30.6||49.2||I-57 – Mount Vernon, Cairo||I-57 exit 30|
|Johnson||West Vienna||40.3||64.9||IL 37 – Marion, Cairo, Cache River Wetlands Center|
|Vienna||44.8||72.1||US 45 – Harrisburg, Metropolis|
|46.0||74.0||I-24 – Interstate 57, Paducah||I-24 exit 16|
|||46.3||74.5||IL 147 east – Simpson|
|Pope||||57.4||92.4||IL 145 – Harrisburg, Paducah, KY||interchange|
|Hardin||Humm Wye||77.7||125.0||IL 34 north – Harrisburg||west end of IL 34 overlap|
|||81.2||130.7||IL 34 south – Rosiclare||east end of IL 34 overlap|
|Loves Corner||92.93||149.56||IL 1 – Carmi, Cave in Rock|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- Carlson, Rich. Illinois Highways Page: Routes 141 thru 160. Last updated April 15, 2005. Retrieved June 26, 2006.
- Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08.
- "House Joint Resolution 142", Illinois 94th General Assembly, adopted November 29, 2006. 
- Google (March 5, 2017). "Overview Map of IL 146" (Map). Google Maps. Google. Retrieved March 5, 2017.