 Illinois Route 173 | ||||
|---|---|---|---|---|
| Rosecrans Road | ||||
 IL 173 highlighted in red | ||||
| Route information | ||||
| Maintained by IDOT | ||||
| Length | 66.20 mi[1] (106.54 km) | |||
| Existed | 1924[2]–present | |||
| Major junctions | ||||
| West end |  IL 251 in Machesney Park | |||
    I-39 Toll / I-90 Toll / US 51 in Loves Park US 14 in Harvard US 12 in Richmond US 45 in Antioch I-94 Toll in Zion US 41 in Zion | ||||
| East end |  IL 137 in Zion | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | Lake, McHenry, Boone, Winnebago | |||
| Highway system | ||||
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Illinois Route 173 (IL 173) is a 66.20-mile-long (106.54 km) east–west state highway that runs from Illinois Route 251 in the Rockford suburb of Machesney Park east to Illinois Route 137 (Sheridan Road) in Zion near the Illinois-Wisconsin border.[1] Illinois Route 173 is also one of the northernmost east-west state highways in Illinois. On Interstate 94 (Tri-State Tollway) traveling south from Wisconsin, it is the second road seen which has an interchange at that location. Similarly, when traveling south/east from Wisconsin on Interstates 39/90 and U.S. Route 51 (Jane Addams Memorial Tollway), Illinois Route 173 is only the third exit into Illinois. [3]
- ^ a b Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08.
- ^ Carlson, Rich (2005-04-15). "Illinois Highways Page: Routes 161 thru 180". Retrieved 2006-08-15.
- ^ "Illinois General Assembly - Full Text of HR0886". www.ilga.gov.