List of Illinois Routes


List of Illinois Routes

infobox state highway system
shields=
caption=Standard Illinois Route shield
state=Illinois Route X (ILL X)
interstate=Interstate X (I-X)
us=U.S. Route X (US X)
notes=Illinois Routes are generally state-maintained.

The organized system of Illinois Routes (typically abbreviated as ILL), the state highway system for the U.S. state of Illinois, was created in 1918 with the first State Bond Issue (SBI) Routes, 1 through 46. Bonds were floated to pay for specific routes. SBI # 1 paid for Route 1, and so on. These initial 46 route numbers marked the major infrastructure roads desired by the state legislature in 1918. Remarkably, many of these numbers still exist on the original or nearby alignment. As the highway system grew these numbers were altered to accommodate new roads or extensions of older roads.

In 1924, additional State Bond Issues were authorized for SBI Routes 47 through 185. These route numbers were originally assigned and grouped to specific regions of the state. 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 are all be found in northeastern Illinois and routes 100, 101, 103, 104, 105, 107 are found in western Illinois west of the Illinois River and largely south of McDonough County line.

SBI Route numbers that were superseded by other routes, US or state routes were often reused. For example, SBI Route 61 was originally assigned to a road segment in northeastern Illinois, but was reassigned to a route in western Illinois, sometime after 1937. SBI Numbers are still used for several purposes, even when they do not match the posted number. IDOT District maps still refer to SBI numbers on the various roads it maintains, along with other non-posted designations that refer to how the route was authorized. Bridge weight plates refer to SBI numbers instead of posted route numbers as well. For example, bridge plates along old US-66 refer to the route as "SBI-4"

When the US Highway System of Interstate Roads started to be posted in 1926, the US numbers were just tacked onto the existing IL/SBI number unless the US route was routed along a new route.

Illinois Highway Code

The Illinois Highway Code in the Illinois Compiled Statutes states that all state highways are to be numbered, and that no state highway shall go unnumbered. [605 ILCS 5/4‑201.11] In addition, roads in the system include state highways that connect cquote|any State park, State forest, State wildlife or fish refuge, the grounds of any State institution or any recreational, scenic or historic place owned or operated by the State; any national cemetery; and to any tax supported airport constructed in part by State and federal funds [(605 ILCS 5/4‑201.5)]

Descriptions of each individual state highway are filed with the county clerk of the county in which the state highway resides. [(605 ILCS 5/4‑204)] State highways may be maintained by either the municipalities if within a municipality, or the Illinois Department of Transportation. [(605 ILCS 5/4‑203), (605 ILCS 5/4‑208)] Should a highway run through a municipality, IDOT is authorized to choose a route through the municipality in order to make a route contiguous for through traffic. [(605 ILCS 5/4‑205)]

Notes

* There are a number of state routes which share numbers with Interstate routes in Illinois, i.e. Illinois Route 64 and Interstate 64. The Illinois Department of Transportation generally uses the rule that if the two routes cannot be confused, the state route will remain its number. Where confusion may occur, like "Illinois Route 88" intersecting Interstate 88, the route number is changed. In the case of Illinois 88, it was renamed to Illinois Route 40.

List of Illinois Routes

:Former routes are listed in "italics".

1-10

31-40

* Illinois Route 31
* Illinois Route 32
* Illinois Route 33
* Illinois Route 34
* Illinois Route 35
* "Illinois Route 36"
* Illinois Route 37
* Illinois Route 38
* "Illinois Route 39"
* Illinois Route 40

41-50

* Illinois Route 41
* "Illinois Route 42"
* "Illinois Route 42A"
* Illinois Route 43
* "Illinois Route 44"
* "Illinois Route 45"
* "Illinois Route 46"
* Illinois Route 47
* Illinois Route 48
* Illinois Route 49
* Illinois Route 50

51-60

* "Illinois Route 51"
* "Illinois Route 52"
* Illinois Route 53
* Illinois Route 54
* "Illinois Route 55"
* Illinois Route 56
* Illinois Route 57
* Illinois Route 58
* Illinois Route 59
* "Illinois Route 59A"
* Illinois Route 60

61-70A

* Illinois Route 61
* Illinois Route 62
* "Illinois Route 63"
* Illinois Route 64
* "Illinois Route 65"
* "Illinois Route 66"
* "Illinois Route 67"
* Illinois Route 68
* "Illinois Route 69"
* Illinois Route 70
* "Illinois Route 70A"

71-80

* Illinois Route 71
* Illinois Route 72
* Illinois Route 73
* "Illinois Route 74"
* Illinois Route 75
* Illinois Route 76
* "Illinois Route 77"
* Illinois Route 78
* "Illinois Route 79"
* "Illinois Route 80"

81-90

* Illinois Route 81
* Illinois Route 82
* Illinois Route 83
* "Illinois Route 83A"
* Illinois Route 84
* "Illinois Route 85"
* "Illinois Route 86"
* "Illinois Route 87"
* "Illinois Route 88"
* "Illinois Route 88A"
* Illinois Route 89
* "Illinois Route 89A"
* "Illinois Route 89B"
* "Illinois Route 89C"
* Illinois Route 90

91-100

* Illinois Route 91
* Illinois Route 92
* Illinois Route 93
* Illinois Route 94
* "Illinois Route 94A"
* "Illinois Route 94B"
* Illinois Route 95
* "Illinois Route 95A"
* Illinois Route 96
* Illinois Route 97
* "Illinois Route 97A"
* Illinois Route 98
* Illinois Route 99
* Illinois Route 100

101-110

* Illinois Route 101
* Illinois Route 102
* Illinois Route 103
* Illinois Route 104
* Illinois Route 105
* Illinois Route 106
* Illinois Route 107
* Illinois Route 108
* Illinois Route 109
* "Illinois Route 110"

111-120

* Illinois Route 111
* "Illinois Route 112"
* Illinois Route 113
* "Illinois Route 113N"
* "Illinois Route 113S"
* Illinois Route 114
* Illinois Route 115
* Illinois Route 116
* "Illinois Route 116A"
* Illinois Route 117
* "Illinois Route 118"
* Illinois Route 119
* Illinois Route 120

121-130A

* Illinois Route 121
* Illinois Route 122
* Illinois Route 123
* Illinois Route 124
* Illinois Route 125
* Illinois Route 126
* Illinois Route 127
* "Illinois Route 127A"
* Illinois Route 128
* Illinois Route 129
* Illinois Route 130
* "Illinois Route 130A"

131-140

* Illinois Route 131
* Illinois Route 132
* Illinois Route 133
* Illinois Route 134
* Illinois Route 135
* Illinois Route 136
* Illinois Route 137
* Illinois Route 138
* "Illinois Route 139"
* Illinois Route 140

141-150

* Illinois Route 141
* Illinois Route 142
* "Illinois Route 142A"
* Illinois Route 143
* "Illinois Route 144
* Illinois Route 145
* Illinois Route 146
* Illinois Route 147
* Illinois Route 148
* Illinois Route 149
* Illinois Route 150

151-160

* Illinois Route 151
* Illinois Route 152
* Illinois Route 153
* Illinois Route 154
* Illinois Route 155
* Illinois Route 156
* Illinois Route 157
* Illinois Route 158
* Illinois Route 159
* Illinois Route 160

161-170

* Illinois Route 161
* Illinois Route 162
* Illinois Route 163
* Illinois Route 164
* Illinois Route 165
* Illinois Route 166
* Illinois Route 167
* "Illinois Route 168"
* Illinois Route 169
* Illinois Route 170

171-180

* Illinois Route 171
* Illinois Route 172
* Illinois Route 173
* "Illinois Route 174"
* "Illinois Route 175"
* Illinois Route 176
* Illinois Route 177
* Illinois Route 178
* "Illinois Route 179"
* Illinois Route 180

181-200

* "Illinois Route 181"
* "Illinois Route 182"
* "Illinois Route 183"
* Illinois Route 184
* Illinois Route 185
* "Illinois Route 186"
* "Illinois Route 190"
* Illinois Route 192
* "Illinois Route 194"
* "Illinois Route 199"

201 and up

* Illinois Route 203
* "Illinois Route 213"
* "Illinois Route 226"
* Illinois Route 242
* Illinois Route 250
* Illinois Route 251
* Illinois Route 255
* Illinois Route 267, formerly "Alternate U.S. 67".
* "Illinois Route 316"
* Illinois Route 336
* Illinois Route 351
* Illinois Route 394
* "Illinois Route 594"

List of U.S. Routes in Illinois

*U.S. Route 6
*U.S. Route 12
*U.S. Route 14
*U.S. Route 20
*U.S. Route 24
*U.S. Route 30
*"U.S. Route 32"
*U.S. Route 34
*U.S. Route 36
*U.S. Route 40
*U.S. Route 41
*U.S. Route 45
*U.S. Route 50
*U.S. Route 51
*U.S. Route 52
*U.S. Route 54
*U.S. Route 60
*"U.S. Route 61", was in Illinois from 1971 to 1982
*U.S. Route 62
*"U.S. Route 66"
*"U.S. Route 66 Alternate", now Illinois Route 53
*U.S. Route 67
*"U.S. Route 67 Alternate", was on both U.S. Route 67 and Illinois Route 267 by US 67 at different points in time
*"U.S. Route 124"
*U.S. Route 136
*U.S. Route 150
*"U.S. Route 151", was in Illinois from 1971 to 1982
*"U.S. Route 330"
*"U.S. Route 430"
*"U.S. Route 460", 1947 through 1974

Unnumbered routes

Some routes in Illinois are state maintained, but not numbered.fact|date=November 2007
*Elgin O'Hare Expressway
*Palatine Road
*Raritan Road
*Smithfield Road

References

External links

* [http://www.ilga.gov/legislation/ilcs/ilcs4.asp?DocName=060500050HArt%2E+4+Div%2E+2&ActID=1745&ChapAct=605%26nbsp%3BILCS%26nbsp%3B5%2F&ChapterID=45&ChapterName=ROADS+AND+BRIDGES&SectionID=58155&SeqStart=12500&SeqEnd=17300&ActName=Illinois+Highway+Code%2E 605 ILCS 5/Illinois Highway Code]
* [http://www.dot.state.il.us/default.html Illinois Department of Transportation]
* [http://www.n9jig.com/ Illinois Highways Page]
* [http://mdo20.0catch.com/route/il/ilsign.html Road Signs of Illinois]
* [http://illi-indi.com/IllinoisHighwayList.php Illinois State Highway Endpoints]


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