U.S. Route 45 (US 45) in the state of Illinois is a major north–south U.S. Highway that runs from the Brookport Bridge over the Ohio River at Brookport north through rural sections of eastern Illinois and then through the suburbs of Chicago to the Wisconsin state line east of Antioch. This is a distance of 428.99 miles (690.39 km).[1] US 45 is the longest numbered route in Illinois.
 | This article needs additional citations for verification. (June 2009) |
 U.S. Route 45 | |||||||
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 US 45 highlighted in red | |||||||
| Route information | |||||||
| Maintained by IDOT | |||||||
| Length | 428.99 mi[1] (690.39 km) | ||||||
| Major junctions | |||||||
| South end |  US 45 near Brookport | ||||||
| North end | US 45 near Antioch | ||||||
| Location | |||||||
| Country | United States | ||||||
| State | Illinois | ||||||
| Counties | Massac, Johnson, Williamson, Saline, Gallatin, White, Wayne, Clay, Effingham, Shelby, Cumberland, Coles, Douglas, Champaign, Ford, Iroquois, Kankakee, Will, Cook, Lake | ||||||
| Highway system | |||||||
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Route description
Southern Illinois
The route crosses the Ohio River over the Brookport Bridge, and then curves to the west to travel through downtown Metropolis. It continues northwest to Vienna, after which it turns to the northeast.
Champaign/Urbana
US 45 serves as the western boundary of the University of Illinois at Urbana–Champaign campus. Entering downtown Champaign as Neil Street, US 45 then goes east on Springfield Avenue, running concurrently with US 150. Farther east of downtown Champaign, it again serves as a boundary for the campus. Following Wright Street, US 45 then moves east on University Avenue, forming the northern border of the University. This path continues to Cunningham Avenue in Urbana. US 45 then turns onto Cunningham Avenue northward towards Chicago.
Kankakee to Hickory Hills
US 45 overlaps US 52 at an intersection with Illinois 49 east of Ashkum. US 45/52 intersects with Illinois Route 17 in Kankakee and Illinois Route 102 in Bourbonnais. Just west of Peotone, US 52 takes a westward course, and US 45 heads north. From this point on until its intersection with Cermak Road/22nd Street in Westchester, US 45 is also known as La Grange Road.
In Frankfort, US 45 intersects with US 30. From that point on until its interchange with Archer Avenue/Illinois Route 171, US 45/La Grange Road is also known as 96th Avenue (9600 W in Chicago's street grid, 96 blocks and 12 miles (19 km) west of State Street). During this stretch it intersects with Interstate 80 and US 6/159th Street in Orland Park. It also intersects Illinois Route 83 (Calumet Sag Road) for the first time in Palos Hills, just south of the Cal-Sag Channel.
Starting at 95th Street near Hickory Hills, US 45 becomes concurrent US 12 and US 20. Two miles further north, at Archer, the road loses its 96th Avenue designation; this is due to the road entering suburbs that do not use Chicago's address system, and that most of its alignment north of Archer would be at 10000 W anyway, if the address system extended to these suburbs.
Hickory Hills to O'Hare International Airport
The concurrent US 12/20/45, past 87th Street, briefly becomes a 4-lane freeway as it intersects with Illinois Route 171 (Archer Avenue) in Justice and Interstate 55 (the Stevenson Expressway) in Hodgkins (along with Interstate 294, which only has a southbound interchange ramp). North of Interstate 55, US 12/20/45 becomes a regular 4-lane highway before it intersects with the former US 66 at Joliet Road in Countryside.
In Downtown La Grange, US 12/20/45 intersects the Burlington Northern/Santa Fe railroad tracks and intersects with US 34 (Ogden Avenue), possibly the only intersection of 4 separate US routes in Illinois.
Following the intersection with US 34, US 12/20/45 passes through La Grange Park (as La Grange Road), moving in a slight northwesterly direction. After passing over Salt Creek, US 12/20/45 intersects with Cermak Road/22nd Street in Westchester and is known as Mannheim Road north of this intersection. Mannheim Road, as US 12/20/45 serves as the Eastern starting point for Illinois Route 38 (Roosevelt Road) in Hillside, has a full interchange with Interstate 290, also in Hillside, and serves as the Eastern starting point for Illinois Route 56 (briefly Washington Boulevard in Bellwood, before becoming Butterfield Road).
After passing over a Union Pacific rail yard, US 45 becomes concurrent with only US 12 in Melrose Park as US 20 breaks off at Lake Street there. US 12 and US 45 remain concurrent on Mannheim Road, passing Interstate 294 again without an interchange, but, after passing Illinois Route 19 (Irving Park Road), has a full interchange with Interstate 190, which leads directly to O'Hare International Airport or Interstate 90 East (into Chicago). This area between IL19 and IL72 once ran straight though but was realigned to the east in 1960 for the construction of O'Hare's 4R/22L runway.
O'Hare International Airport to Antioch
Near the Northeast portion of O'Hare airport, US 12/45 intersects with Illinois Route 72 in Rosemont, IL, and continues along Mannheim Road into Des Plaines. Mannheim Road ends and feeds into Lee Street at the end of an S-curve. The northbound and southbound routes are split in downtown Des Plaines between Lee Street (West 12/North 45) and Graceland Avenue (East 12/South 45). During this time, US 12/45 intersects with US 14 (Miner Street) at two separate points, due to the separation of their directions.
Just north of US 14, US 12/45 are reunited in both directions on Lee Street, only to be separated as US 12 diverges onto Rand Road and US 45 becomes Des Plaines River Road in a complicated intersection on the north side of Des Plaines, just south of Illinois Route 58.
US 45 continues along Des Plaines River Road, intersecting with Illinois 58 in Des Plaines, and eventually becomes concurrent with Illinois Route 21, Milwaukee Avenue, in Prospect Heights, until Lincolnshire (just north of Illinois Route 22) where US 45 takes a northwest route.
US 45 also intersects with Illinois Route 83 just south of Mundelein (where they exchange routes, as IL 83 goes northwest, and US 45 continues north), Illinois Route 60 in Mundelein, Illinois Route 137 in Libertyville, Illinois Route 120 in Grayslake, and Illinois Route 173 just south of the Wisconsin border.
History
Initially, US 45 ran from Metropolis to Des Plaines, Illinois, with some portions under construction.[2] In 1929, a ferry that once crossed the Ohio River closed in favor of opening Brookport Bridge.[3] By 1930, most of the sections were finished and then opened to traffic.[4] The original alignment followed (from south–north) what used to be part of IL 1, IL 140, IL 25, IL 44, IL 51, and IL 46 before terminating at US 12.[5] These state routes were eventually either truncated or removed as of 1935.[6] That same year, US 45 was extended north from Des Plaines, Illinois to Michigan.[7][8] In 1936, a new bridge crossing the Des Plaines River, Chicago Sanitary and Ship Canal, and the Illinois and Michigan Canal opened. As a result, US 45 moved off from another bridge carrying Willow Springs Road.[8] In 1940, US 45 was rerouted to branch off west from Half Day instead of branching off north of Libertyville.[9]
In 1954, a portion of US 45 south of Kankakee moved eastward, resulting in the extension of IL 115.[10] In 1962, another portion of US 45 east of O'Hare Field moved slightly eastward.[11] In 1969, a portion of Interstate 57 east of Kankakee was extended south to US 54 west of Onarga. As a result, US 45 moved away from Clifton and Chebanse.[12]
In October 2019, the 4-lane Millburn Bypass opened in order to reduce congestion in and near Millburn.[13]
Major intersections
All exits are unnumbered.
| County | Location | mi[14] | km | Destinations | Notes | |||
|---|---|---|---|---|---|---|---|---|
| Ohio River | 0.0 | 0.0 |  US 45 south – Paducah | Continuation into Kentucky | ||||
| Brookport Bridge | ||||||||
| Massac | Metropolis | 5.1 | 8.2 |   IL 145 north – Harrisburg | ||||
| 5.5 | 8.9 |  I-24 – Paducah, Interstate 57 | I-24 exit 37 | |||||
| | 21.4 | 34.4 |   IL 169 west (Karnak Road) – Karnak | |||||
| Johnson | Vienna | 30.5 | 49.1 |  IL 146 (Vine Street) – Anna | ||||
| | 32.8 | 52.8 | I-24 – Interstate 57, Paducah | I-24 exit 14 | ||||
| | 45.2 | 72.7 |  IL 166 north – Creal Springs | |||||
| Williamson |
No major junctions | |||||||
| Saline | Harrisburg | 62.0 | 99.8 |  IL 145 south / IL 34 south – Rosiclare, Metropolis | Southern end of IL 34 concurrency | |||
| 63.2 | 101.7 |  IL 13 / IL 34 west – Marion, Shawneetown | Northern end of IL 34 concurrency | |||||
| Eldorado | 70.2 | 113.0 |  IL 142 (State Street) – McLeansboro, Equality | |||||
| Gallatin–White county line | | 79.1 | 127.3 |   IL 141 east – Omaha | ||||
| White | Norris City | 83.3 | 134.1 |  IL 1 – Carmi, Omaha | ||||
| | 91.6 | 147.4 |  IL 14 – McLeansboro, Carmi | |||||
| Wayne | Mill Shoals | 104.7 | 168.5 |  I-64 – Evansville, Mount Vernon | I-64 exit 110 | |||
| Fairfield | 112.7 | 181.4 |  IL 15 east (Main Street) – Albion | Southern end of IL 15 concurrency | ||||
| 115.2 | 185.4 | IL 15 west – Mount Vernon | Northern end of IL 15 concurrency | |||||
| Clay | | 137.5 | 221.3 |  US 50 east – Olney | Southern end of US 50 concurrency | |||
| | 141.3 | 227.4 | US 50 west – Salem | Northern end of US 50 concurrency | ||||
| Effingham | | 165.9 | 267.0 |  IL 37 south – Watson | ||||
| Effingham | 172.5 | 277.6 |   US 40 west / IL 33 (Fayette Avenue west) | Southern end of US 40 concurrency | ||||
| 172.8 | 278.1 | US 40 east / IL 33 (Fayette Avenue east) | Northern end of US 40 concurrency | |||||
| 174.6 | 281.0 |   I-57 / I-70 – Champaign, Terre Haute, Mount Vernon, East St. Louis | I-57 exit 162 | |||||
| Shelby |
No major junctions | |||||||
| Cumberland | | 188.9 | 304.0 | I-57 – Effingham, Champaign | I-57 exit 177 | |||
| | 192.5 | 309.8 |  IL 121 south – Toledo | Southern end of IL 121 concurrency | ||||
| Coles | Mattoon | 197.1 | 317.2 | I-57 – Champaign, Effingham | I-57 exit 184 | |||
| 201.0 | 323.5 |   IL 16 east – Charleston | Southern end of IL 16 concurrency; serves Sarah Bush Lincoln Health Center | |||||
| 201.0 | 323.5 | IL 16 west – Shelbyville, Driver Services Facility | Northern end of IL 16 concurrency | |||||
| 201.6 | 324.4 | IL 121 north (DeWitt Avenue west) | Northern end of IL 121 concurrency | |||||
| |   CR 18 (Mattoon-Charleston Enterprise Parkway) to I-57 | Interchange via connector road | ||||||
| Douglas | Arcola | 215.5 | 346.8 |  IL 133 (Springfield Road) – Lovington, Paris | ||||
| Tuscola | 223.2 | 359.2 |  US 36 (Southline Road) – Decatur, Indianapolis | |||||
| Champaign | Pesotum | 231.4 | 372.4 | I-57 – Effingham, Champaign | I-57 exit 220 | |||
| Champaign | 245.9 | 395.7 |  US 150 west (Springfield Avenue) | Southern end of US 150 concurrency | ||||
| Urbana | 248.2 | 399.4 | US 150 east (University Avenue) | Northern end of US 150 concurrency | ||||
| 249.6 | 401.7 |  I-74 – Danville, Bloomington | I-74 exit 184 | |||||
| Rantoul | 262.2 | 422.0 |  US 136 (Champaign Avenue) | |||||
| Ford | Paxton | 273.1 | 439.5 |  IL 9 west (Patton Street) | Southern end of IL 9 concurrency | |||
| 273.4 | 440.0 | IL 9 east (Pells Street) | Northern end of IL 9 concurrency | |||||
| Iroquois | Onarga | 291.6 | 469.3 |  IL 54 west – Roberts | ||||
| Gilman | 294.6 | 474.1 |  US 24 west – Chatsworth | Southern end of US 24 concurrency | ||||
| 296.4 | 477.0 | US 24 east – Watseka | Northern end of US 24 concurrency | |||||
| Ashkum | 304.8 | 490.5 |  IL 116 west to I-57 – Pontiac | |||||
| | 309.4 | 497.9 |   US 52 east / IL 49 south – Sheldon, Rankin | Southern end of US 52 concurrency; northern terminus of IL 49 | ||||
| Kankakee | Kankakee | 322.5 | 519.0 | I-57 – Chicago, Champaign | I-57 exit 308 | |||
| 324.4 | 522.1 |  IL 50 north | ||||||
| 325.1 | 523.2 |  IL 115 south (McMullin Drive south) | ||||||
| 325.7 | 524.2 |  IL 17 east (Court Street east) – Momence | Southern end of IL 17 concurrency | |||||
| 326.1 | 524.8 | IL 17 west (Court Street west) | Northern end of IL 17 concurrency | |||||
| Bourbonnais | 328.5 | 528.7 |  IL 102 west (Main Street NW) | |||||
| Will | Peotone | 342.3 | 550.9 |   US 52 west / CR 20 east (West Joliet Road) – Joliet | Northern end of US 52 concurrency; western terminus of CR 20 | |||
| Frankfort | 353.4 | 568.7 |   US 30 / Lincoln Highway | |||||
| Mokena–Orland Park– Tinley Park tripoint | 356.7 | 574.1 |  I-80 – Indiana, Joliet | I-80 exit 145 | ||||
| Cook | Orland Park | 360.1 | 579.5 |  US 6 (159th Street) | ||||
| 362.5 | 583.4 |  IL 7 (Southwest Highway) | Access via 135th and 143rd Streets | |||||
| Palos Park | 365.8 | 588.7 |  IL 83 (Calumet Sag Road) | Interchange | ||||
| Oak Lawn | 368.2 | 592.6 |   US 12 east / US 20 east (95th Street) | Southern end of US 12 & US 20 concurrency | ||||
| Willow Springs | 370.1 | 595.6 |     IL 171 (Archer Avenue) to 79th Street / I-294 Toll south (Tri-State Tollway) – Indiana | Cloverleaf interchange; left exit southbound | ||||
| Hodgkins–Countryside line | 371.6 | 598.0 |   I-55 (Stevenson Expressway) to I-294 Toll north – Chicago, St. Louis | Cloverleaf interchange; I-55 exit 279 | ||||
| 372.7 | 599.8 |  Historic US 66 (Joliet Road) | ||||||
| La Grange | 375.4 | 604.1 |  US 34 (Ogden Avenue) | |||||
| Westchester | 378.7 | 609.5 |  IL 38 west (Roosevelt Road) | |||||
| 379.2 | 610.3 |    I-290 / IL 110 (CKC) (Dwight D. Eisenhower Expressway) | I-290 exit 17 | |||||
| Bellwood | 379.9 | 611.4 |  IL 56 west (Washington Boulevard) | |||||
| Stone Park | 381.0 | 613.2 | US 20 west (Lake Street) | Northern end of US 20 concurrency | ||||
| 381.7 | 614.3 |  IL 64 (North Avenue) | Partial interchange | |||||
| Franklin Park | Frontage Road | Interchange via connector roads | ||||||
| Schiller Park | 385.2 | 619.9 |  IL 19 (Irving Park Road) to I-294 Toll north | |||||
| Schiller Park–Chicago line | Balmoral Avenue | South end of expressway | ||||||
| Chicago | 387.0 | 622.8 |   I-190 (Kennedy Expressway) – Chicago, O'Hare | Parclo interchange; no direct access from I-190 EB; I-190 west exits 2A-B | ||||
| Economy Parking F, Rental Car Return | North end of expressway; no southbound exit | |||||||
| Chicago–Rosemont line | 388.3 | 624.9 |  IL 72 (Higgins Road) | |||||
| Des Plaines | 391.6 | 630.2 |  US 14 (Miner Street) | |||||
| 392.1 | 631.0 | US 12 west (Rand Road) | Northern end of US 12 concurrency | |||||
| 392.6 | 631.8 |  IL 58 (Golf Road) | ||||||
| Prospect Heights | 396.1 | 637.5 |  IL 21 south (Milwaukee Avenue south) | Southern end of IL 21 concurrency | ||||
| 396.4 | 637.9 | Willow Road east to Illinois Tollway (I-294) | Diamond interchange | |||||
| Palatine Road west – Chicago Executive Airport Viewing Area | ||||||||
| Wheeling | 398.8 | 641.8 |  IL 68 (Dundee Road) | |||||
| Cook–Lake county line | Wheeling–Buffalo Grove line | 399.8 | 643.4 | Lake Cook Road | Interchange | |||
| Lake | Vernon Hills | 403.1 | 648.7 |  IL 22 (Half Day Road) | ||||
| 403.4 | 649.2 | IL 21 north (Milwaukee Avenue north) | Northern end of IL 21 concurrency | |||||
| Mundelein | 407.3 | 655.5 | IL 83 | |||||
| 407.6 | 656.0 |  IL 60 (Townline Road) | ||||||
| 410.1 | 660.0 |  IL 176 (Maple Avenue) | ||||||
| Libertyville | 412.9 | 664.5 |  IL 137 (Buckley Road) – Volo, North Chicago | Interchange | ||||
| Grayslake | 414.6 | 667.2 |  IL 120 (Belvidere Road) | |||||
| Grandwood Park | 418.1 | 672.9 |  IL 132 (Grand Avenue) | |||||
| Antioch | 423.7 | 681.9 |  IL 173 | |||||
| | 428.99 | 690.39 | US 45 north – Milwaukee | Continuation into Wisconsin | ||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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References
External links
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