Interstate 180 (Illinois)
I-180 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-80 | ||||
| Maintained by IDOT | ||||
| Length | 13.19 mi (21.23 km) | |||
| Existed | 1967–present | |||
| History | Completed in 1969 | |||
| NHS | Entire route | |||
| Major junctions | ||||
| South end | IL 26 / IL 71 in Hennepin | |||
| US 6 in Princeton | ||||
| North end | I-80 in Princeton | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | Putnam, Bureau | |||
| Highway system | ||||
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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. It is 13.19 miles (21.23 km) long.