Illinois Route 34
|Maintained by IDOT|
|Length:||61.74 mi (99.36 km)|
|Existed:||November 5, 1918 – present|
|South end:||Hopkinton and Walnut Streets in Rosiclare|
|US 45 / IL 13 / IL 145 in Harrisburg|
|North end:||IL 14 / IL 37 in Benton|
|Counties:||Hardin, Pope, Saline, Franklin|
Illinois Route 34 is a north–south state road in southern Illinois. It runs from a former ferry crossing to Kentucky Route 297 across the Ohio River in Rosiclare to Illinois Routes 14/37 in Benton. This is a distance of 61.74 miles (99.36 km).
Illinois 34 overlaps Illinois Route 146 and Illinois Route 145 between Rosiclare and Harrisburg. In Harrisburg, Illinois 34 formerly ran the length of Main Street where it at one time sharply turned at Raymond St, then crossed a five way stop between U.S. Route 45, Sloan St, and Illinois Route 145 where it overlapped.
Congestion in this area was greatly reduced when the concurrent highway was re-routed farther south to connect and is now concurrent with U.S. Route 45, which it follows to the Bill Franks Bypass (Illinois Route 13). Route 34 then travels west with Route 13 to Main Street, where it then departs Harrisburg heading north.
Illinois Route 34 serves as a main north–south road for towns located in the eastern portion of the Shawnee National Forest.
SBI Route 37 ran from Harrisburg to Elizabethtown, currently located northeast of Rosiclare on Illinois 146. There was also a spur west to Golconda, which is located southwest of Rosiclare on modern-day Illinois 146. In 1937, the road was extended northwest to Benton and its southern end moved to the Rosiclare ferry, which stopped operating in the mid 1960s.
||This section contains a table that is missing mileposts for one or more junctions.|
|Hardin||Rosiclare||CR 1 south / Hopkinton Street, Walnut Street|
|||IL 146 east||South end of IL 146 overlap|
|Humm Wye||IL 146 west||North end of IL 146 overlap|
|Saline||||IL 145 south||South end of IL 145 overlap|
|Harrisburg||US 45 south (Commercial Street)||South end of US 45 overlap; North end of IL 145 overlap|
|IL 13 east||South end of IL 13 overlap; North end of US 45 overlap|
|IL 13 west (Popular Street)||North end of IL 13 overlap|
|Franklin||Thompsonville||IL 149 west|
|Benton||IL 14 / IL 37 (Main Street)|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi