Interstate 180 (I-180) is a north–south spur highway in Illinois that runs from Princeton to the small town of Hennepin at its southern terminus.

The interchange is located adjacent to a former steel mill that was most recently operated by ArcelorMittal but closed in 2009 and demolished in 2017.

[3] The freeway travels northwest, carrying I-180 and IL 26 in a concurrency, and crosses the Illinois River on the north side of Hennepin to enter Bureau County.

The freeway intersects US Route 6 (US 6) east of Princeton and continues due north to its terminus, a trumpet interchange with I-80.

[5] In August 1970, the U.S. General Accounting Office published a report criticizing the Federal Highway Administration for prioritizing I-180 over spurs in larger metropolitan areas, including Tucson, Arizona and Tacoma, Washington.