U.S. Route 45 in Illinois

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U.S. Route 45 marker

U.S. Route 45
Route information
Maintained by Illinois Department of Transportation
Length: 428.99 mi[1] (690.39 km)
Major junctions
South end: US 45 near Brookport
 

I-24 in Metropolis
I-64 near Mill Shoals
US 50 in Flora
I-70 / US 40 in Effingham
I-74 in Urbana
I-57 in Kankakee
US 30 in Frankfort
I-80 in Tinley Park
I-55 in Hodgkins

US 20 in Stone Park
North end: US 45 near Antioch
Location
Counties: Massac, Johnson, Williamson, Saline, Gallatin, White, Wayne, Clay, Effingham, Shelby, Cumberland, Coles, Douglas, Champaign, Ford, Iroquois, Kankakee, Will, Cook, Lake
Highway system
IL 43 IL 47

In the U.S. state of Illinois, U.S. Route 45 is a major north–south highway that runs from the Irvin S. Cobb Bridge over the Ohio River at Brookport north through rural sections of eastern Illinois and then through the suburbs of Chicago to the Wisconsin border east of Antioch. This is a distance of 428.99 miles (690.39 km).[1] U.S. 45 is the longest numbered route in Illinois.

Route description[edit]

Champaign/Urbana[edit]

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[edit]

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[edit]

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 itintersects 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 4R22L runway.

O'Hare International Airport to Antioch[edit]

Past O'Hare airport, US 12/45 intersects with Illinois Route 72 in Illinois, and continues along Mannheim Road in 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.

Major intersections[edit]

County Location Mile km Destinations Notes
McCracken Paducah US 45 Continuation in Kentucky
Ohio River Irvin S. Cobb Bridge
Massac Metropolis IL 145
I-24
  IL 169
Johnson Vienna IL 146
  I-24
  IL 166
Saline Harrisburg IL 145 south / IL 34 south Southern end of Route 34 concurrency
IL 34 north Northern end of Route 34 concurrency
IL 13
Eldorado IL 142
GallatinWhite
county line
  IL 141
White Norris City IL 1
  IL 14
Wayne Mill Shoals I-64
Fairfield IL 15 east Southern end of Route 15 concurrency
IL 15 west Northern end of Route 15 concurrency
Clay   US 50 east Southern end of US 50 concurrency
  US 50 west Northern end of US 50 concurrency
Effingham   IL 37
Effingham US 40 west Southern end of US 40 concurrency
US 40 east Northern end of US 40 concurrency
I-57 / I-70
Cumberland   I-57
  IL 121 Southern end of Route 121 concurrency
Coles Mattoon I-57
IL 16 east Southern end of Route 16 concurrency
IL 16 west Northern end of Route 16 concurrency
IL 121 west Northern end of Route 121 concurrency
Douglas Arcola IL 133
  US 36
Champaign Pesotum I-57
Champaign US 150 west Southern end of US 150 concurrency
Urbana US 150 east Northern end of US 150 concurrency
I-74
Rantoul US 136
Ford Paxton IL 9 west Southern end of Route 9 concurrency
IL 9 east Northern end of Route 9 concurrency
Iroquois Gilman US 24 west Southern end of US 24 concurrency
US 24 east Northern end of US 24 concurrency
Ashkum IL 116
  US 52 east / IL 49 Southern end of US 52 concurrency
Kankakee Kankakee I-57
IL 50
IL 17 east Southern end of Route 17 concurrency
IL 17 west Northern end of Route 17 concurrency
Bourbonnais IL 102 west
Will   US 52 west
Frankfort US 30
I-80
Cook Tinley Park US 6
Orland Park IL 7
IL 83 Interchange
Oak Lawn US 12 east / US 20 east (95th Street) Southern end of US 12 & US 20 concurrency
Willow Springs I-294 (Tri-State Tollway) / IL 171 (Archer Avenue) / to 79th Street Interchange
Hodgkins I-55 (Stevenson Expressway)
Countryside Historic US 66 (Joliet Road)
La Grange US 34 (Ogden Avenue)
Westchester IL 38 west (Roosevelt Road)
I-290 (Eisenhower Expressway)
Bellwood IL 56 west
Stone Park US 20 west (Lake Street) Northern end of US 20 concurrency
IL 64 (North Avenue)
Schiller Park IL 19 (Irving Park Road)
Rosemont I-190 – Chicago, O'Hare International Airport
IL 72 (Higgins Road)
Des Plaines US 14 (Miner Street)
US 12 west (Rand Road) Northern end of US 12 concurrency
IL 58
Prospect Heights IL 21 south (Milwaukee Avenue) Southern end of Route 21 concurrency
Wheeling IL 68 (Dundee Road)
CookLake Buffalo GroveWheeling Lake Cook Road Interchange
Lake Half Day IL 22 (Half Day Road)
IL 21 north (Milwaukee Avenue) Northern end of Route 21 concurrency
Mundelein IL 83
IL 60
IL 176
Libertyville IL 137 Interchange
Lake Forest IL 120 (Belvidere Road)
Grandwood Park IL 132
  IL 173
Kenosha   US 45 Continuation of US 45
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

  1. ^ a b Illinois Technology Transfer Center (2007). "T2 GIS Data". Retrieved 2007-11-08.