Illinois Route 178
| East 8th Road | ||||
IL 178 highlighted in red | ||||
| Route information | ||||
| Maintained by IDOT | ||||
| Length | 8.49 mi (13.66 km) | |||
| Existed | 1924–present | |||
| Major junctions | ||||
| South end | CR 14 / CR 44 in Lowell | |||
| US 6 in North Utica | ||||
| North end | I-80 in North Utica | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | LaSalle | |||
| Highway system | ||||
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Illinois Route 178 is a minor north–south state highway in north central Illinois. It runs north from the unincorporated area of Lowell to Interstate 80 about 3 miles (4.8 km) north of North Utica, which is better known as simply Utica. This is a distance of 8.49 miles (13.66 km).