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List of Illinois State Routes - Wikipedia, the free encyclopedia |
 | | The Illinois State Route system (typically abbreviated as ILL) was formed in 1918, and each road was numbered in chronological order. |
 | | Thus, it is not uncommon to find groups of routes with similar numbers around each other (routes 23, 26, and 29 are found in north-central Illinois, while routes 56, 58, 59, 60, 62, 64, 68 and 72 can all be found in northern Chicagoland). |
 | | Route 1 was formed as the primary highway, stretching well over 350 miles from Chicago to the Wabash River near Kentucky as part of the Dixie Highway. |
| en.wikipedia.org /wiki/List_of_Illinois_State_Routes (211 words) |
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