Interstate 190 (I-190) is an auxiliary Interstate Highway in the US state of Illinois. I-190 runs west from I-90 to O'Hare International Airport, for a distance of . Then, it was changed to I-190 around 1978 after the rest of IL 194 was changed to I-90 in the mid- to late 1970s.
In late 2005, the interchange with Mannheim Road was reconstructed to remove unsafe conditions and bring the route closer to Interstate standards. In the late 1990s, the Illinois Department of Transportation (IDOT) restriped I-190 at I-294. This action increased the number of lanes west of I-294 from two to three. In the process, the speed limit was reduced from , and yield signs were erected at the ends of the ramp from northbound Mannheim Road to westbound I-190, the busiest ramp at that intersection. This created a hazardous condition, often leading to high-speed crashes should drivers waiting on the ramp become impatient or underestimate the speed of westbound traffic. Often, an IDOT Minuteman (rapid response vehicle) would be stationed on the ramp waiting to tow away vehicles that were involved in crashes during rush hour.
Exit list
Although exit numbers on I-190 increase from east to west, this table presents interchanges from west to east to follow IDOT milepost measurements starting at O'Hare.