Illinois Route 2
IL 2 highlighted in red
|Maintained by IDOT|
|Length||73.91 mi (118.95 km)|
|Existed||November 5, 1918–present|
|South end||IL 40 in Sterling|
| US 52 / IL 26 in Dixon|
US 20 in Rockford
|North end||WIS 213 at South Beloit|
|Counties||Whiteside, Lee, Ogle, Winnebago|
Illinois Route 2 (IL 2) is a north–south state road in northern Illinois. It currently starts at Illinois Route 40 in Sterling and ends at the Wisconsin state line in South Beloit, very near the intersection with U.S. Route 51, Illinois Route 75 and Illinois Route 251. Illinois 2 is 73.91 miles (118.95 km) long.
Illinois 2 follows the Rock River from Rock Island to South Beloit. It was used in the 19th century as a primary trading route from Rockford to Rock Island, The Rock River was not used as a trading route for boats as it is only navigable west of Rock Falls.
SBI Route 2 originally ran from South Beloit to Cairo. Part of the roadway followed the original IL 2 from South Beloit to Dixon. It then followed south on (roughly) present-day US 52, IL 251, and US 51. In 1936, IL 2 was removed south of Dixon. In the late 1930s, IL 2 was extended to Rock Island. By the late 1970s, IL 2 was removed west of Sterling as Illinois Route 5 (now I-88 east of I-80) was extended to Rock Island.
Blue Star Memorial Highway
|Whiteside||Sterling||0.0||0.0||IL 40 south (Locust Street) to I-88 / US 30|
|IL 40 north / Lincoln Highway west (1st Avenue)||South end of Lincoln Highway overlap|
|Freeport Road - Polo||State maintained (outside Sterling)|
|||Lincoln Highway east (Prairieville-Palmyra Road) – Prairieville, Gap Grove||North end of Lincoln Highway overlap; state maintained|
|Lee||||Lincoln Highway west (Palmyra Road) – Gap Grove, Prairieville||South end of Lincoln Highway overlap; state maintained|
|Dixon||12.3||19.8||US 52 west / IL 26 north (Galena Avenue) – Savanna, Freeport||South end of US 52 / IL 26 overlap|
|12.7||20.4||US 52 east / IL 26 south / Lincoln Highway east (Galena Avenue) – Mendota, Princeton||North end of US 52 / IL 26 / Lincoln Highway overlap|
|Ogle||Oregon||28.6||46.0||IL 64 (Washington Street)|
|||37.9||61.0||IL 72 west – Leaf River, Forreston||South end of IL 72 overlap|
|Byron||39.2||63.1||IL 72 east (Union Street) – Genoa||North end of IL 72 overlap|
US 20 to I-39 / I-90 – Freeport, Belvidere
US 20 Bus. east (Chestnut Street) to I-90 – Belvidere
|One-block overlap with US 20 Bus. east, northbound only|
US 20 Bus. west (Jefferson Street) – Freeport
|Rockton||69.1||111.2||IL 75 west (Blackhawk Boulevard)||South end of IL 75 overlap|
|South Beloit||71.4||114.9||IL 75 east (Gardner Street) to I-39 / I-90 / US 51||North end of IL 75 overlap|
|71.6||115.2||WIS 213 north – Beloit||Wisconsin state line|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- Carlson, Rick. Illinois State Highways Page: Routes 1 thru 20. Last updated March 15, 2006. Retrieved March 24, 2006.
- Illinois Technology Transfer Center (2007). "T2 GIS Data". Retrieved 2007-11-08.
- Illinois Highway Ends. Illinois 2. Retrieved May 2, 2006.
- Illinois Secretary of State; H.M. Gousha (1928). Illinois Official Auto Road Map (Map). [c. 1:950,000 and c. 1:1,110,000]. Springfield: Illinois Secretary of State – via Illinois Digital Archives.
- Illinois Secretary of State; Rand McNally (1936). Road Map Illinois (Map). [c. 1:950,000 and c. 1:1,110,000]. Springfield: Illinois Secretary of State – via Illinois Digital Archives.
- Illinois Secretary of State; Rand McNally (1939). Illinois Road Map (Map) (1939–1940 ed.). c. 1:918,720. Springfield: Illinois Secretary of State – via Illinois Digital Archives.
- Illinois Department of Transportation (1979). Illinois Highway Map (Map). [1:772,500]. Springfield: Illinois Department of Transportation – via Illinois Digital Archives.
- Google Maps estimate