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
Illinois State Highway System
Interstate
US
State
Tollways
Scenic
← IL 172
→ IL 174
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. In 2008, the entirety of Illinois 173 has been designated the 173rd Airborne Brigade Highway[3]
^ abIllinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08.
IllinoisRoute173 (IL 173) is a 66.20-mile-long (106.54 km) east–west state highway that runs from IllinoisRoute 251 in the Rockford suburb of Machesney...
IllinoisRoute 59 is a north–south state highway in northeastern Illinois. It runs south from IllinoisRoute173 in Antioch to I-55 in Shorewood, spanning...
Rockford region at IllinoisRoute173, passing by Rock Cut State Park; its first interchange with US 20 is with the business route (State Street) connecting...
IllinoisRoute 83 (IL 83) is a 91.73-mile-long (147.63 km) major north–south state highway in northeast Illinois. It stretches from U.S. Route 30 (US 30...
the operation premiered on the GAC Channel. IllinoisRoute173, which runs for 66 miles along the Illinois/Wisconsin border was designated the "173rd Airborne...
short track high banked asphalt oval located in Loves Park, Illinois on IllinoisRoute173. Up until its demolition in 2023, Rockford Speedway, Chicagoland...
The IllinoisRoutes are the highways in the State Highway System of the U.S. state of Illinois that are not simultaneously part of the Interstate Highway...
IllinoisRoute 137 (IL 137) is a 23.49-mile-long (37.80 km) state highway in northeast Illinois. It runs from the Wisconsin state line north of Winthrop...
IllinoisRoute 251 is a north–south state highway that runs on the former alignment of U.S. Route 51 before Interstate 39 was built in north central Illinois...
Global Information
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
IL 137 in Zion
