Illinois 145 is a north-south route in southern Illinois that serves as an alternate to US45 (hence the "45" in its number). It runs from Harrisburg to Metropolis.
Intersections from north to south:
IL145 begins at US45 in Harrisburg, on a stretch where IL145 is multiplexed with IL34
IL34 breaks off to head southeast
IL145 ends at US45 near I-24 by Metropolis.
It passes through these towns: Harrisburg and Eddyville.
