U.S. Route 20 in Illinois

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This article is about the section of U.S. Route 20 in Illinois. For the entire route, see U.S. Route 20.

U.S. Route 20 marker

U.S. Route 20
Ulysses S. Grant Memorial Highway
Route information
Maintained by IDOT
Length: 233.93 mi[1] (376.47 km)
Existed: 1926 – present
Major junctions
West end: US 20 in East Dubuque
  I-39 / US 51 in Rockford
I-39 / I-90 / US 51 in Rockford
I-355 in Addison
I-290 / I-294 in Elmhurst
US 12 / US 45 in Stone Park

I-290 / IL 110 (CKC) in Westchester
I-55 in Hodgkins
I-294 in Bridgeview
I-94 in Chicago
US 41 in Chicago
East end: US 12 / US 20 / US 41 in Chicago
Highway system
IL 19 IL 21

U.S. Route 20 (US 20) in the U.S. state of Illinois is a major arterial highway that runs from the Iowa state line at East Dubuque at the northwestern tip of Illinois, to the Indiana state line at Chicago south of the Chicago Skyway, a distance of 233.93 miles (376.47 km).[1] For its entire length, US 20 is designated as the General Ulysses S. Grant Highway, often abbreviated the U.S. Grant Memorial Highway. However, this name is only commonly used west of Elgin. From Elgin to Melrose Park, US 20 follows Lake Street. It then follows Mannheim Road, and further south La Grange Road. US 20 also follows 95th Street as it turns east through Chicago's southwestern suburbs. It ultimately leaves Illinois on Indianapolis Boulevard.

Route description[edit]

Northwest Illinois[edit]

As the highway enters Illinois across the Julien Dubuque Bridge, it continues southeasterly for a while, paralleling the Upper Mississippi River before turning east into the rugged country of the Driftless Area in Jo Daviess County, then turning flat and straight west of Stockton, Illinois and entering Stephenson County. The Ulysses S. Grant Home, a national landmark, fronts near the highway at the eastern edge of Galena, Illinois.

In Freeport, US 20 is routed onto a limited-access freeway bypass. Between Freeport and Rockford there are two traffic light-controlled intersections. The Rockford bypass routes US 20 onto a full limited-access freeway; it remains this way until it overlaps Interstate 39 southeast of downtown Rockford. Interchanges on the Rockford Bypass include West State Street (Business US 20), South Meridian Road, Montague Road, South Main Street (Illinois Route 2), 11th Street (Illinois Route 251), and South Alpine Road.

Rockford to Elgin[edit]

East of Rockford, the routing of US 20 runs parallel with Interstate 90, with US 20 serving minor cities that are not accessible from the Jane Addams Memorial Tollway. It is a four-lane divided highway from I-39 to just east of Belvidere; for the rest of this segment, it is a winding, rural two-lane road.

US 20 travels through the downtowns of the small towns and unincorporated areas of Garden Prairie, Harmony and Starks, as well as the city of Marengo. At Starks, eastbound US 20 overlaps southbound Illinois Route 47 and westbound Illinois Route 72, forming a wrong-way concurrency. All three routes pass beneath a railroad viaduct before separating south of Starks.

Continuing east, US 20 travels through Pingree Grove before entering the Elgin area. Before entering Elgin, US 20 widens to a four lane limited-access freeway that bypasses Elgin. This road is known as the Elgin Bypass.

Elgin to Indiana[edit]

Markers for the original Ulysses S. Grant Highway on Old Lake Street in Bartlett.

At the end of the Elgin bypass, US 20 takes on the name of Lake Street. US 20 has numerous high-volume intersections, including a grade-separated interchange with Illinois Route 59. In Hanover Park, an early-2000s reconstruction project widened lanes on the road and created a median for safer travel; east of Barrington Road / County Farm Road, the road briefly becomes six lanes for one mile (1.6 km) until the Elgin–O'Hare Expressway.

US 20 continues in an east-southeast direction through the town center of Bloomingdale and becomes six lanes at the Bloomingdale-Roselle border. It maintains six lanes through a very high traffic corridor to Interstate 290 and onwards to Illinois Route 53 before it returns to four lanes while serving downtown Addison, paralleling Interstate 290 to the north. Past Elmhurst, the road overlaps Interstate 290 for a mile.

US 20 continues through Stone Park and Melrose Park before turning south and joining U.S. Routes 12/45. At this point, US 20 becomes Mannheim Road, and later, La Grange Road, until it turns onto 95th Street eastbound with U.S. 12. This combination later joins with U.S. Route 41, where the three routes follow Ewing Avenue and Indianapolis Boulevard, which are the last portions of US 20 prior to its crossing the state line into Indiana.

History[edit]

The routing of US 20 has not changed since 1938. Prior to 1938, US 20 continued east on Lake Street east of Mannheim Road (US 12/US 45). It ran through downtown Chicago and exited Chicago south on what is now Torrence Avenue.[2] In 1955, the Illinois General Assembly designated the entire length of US 20 in Illinois the "U.S. Grant Memorial Highway". New signs were produced in late 2007 to reflect this designation along its entire length.[3]

Future[edit]

Long-range plans call for US 20 to be upgraded to a full four-lane highway from Rockford to the Iowa border near Dubuque. The project dates back to the 1970s, when a major supplemental freeway system was proposed in Illinois. One of the routes, FAP 401, was a freeway that was to run across northwestern Illinois from Rockford to Dubuque.[4] Portions of the freeway were built in the form of bypasses around Rockford and Freeport, while a four-lane divided expressway was built between those two cities. In addition, a four lane divided expressway was constructed between Galena and East Dubuque.

A freeway between Freeport and Galena has been proposed. The new roadway would run from an interchange with IL 84, northwest of Galena, to an interchange on the west end of the previously constructed Freeport bypass.[5] However, funding is the biggest obstacle to constructing the roadway, estimated at over $1 billion.[6] Only the Galena bypass segment has received any funding beyond Phase I, and no segment has received any construction funding.[7]

This would complete the last remaining section of US 20 in northwestern Illinois not upgraded to four lanes. Upon the completion of this project and construction a new four lane bridge over the Mississippi River, US 20 will be a continuous four lane divided highway between Rockford and Interstate 35 in Iowa.

Major intersections[edit]

County Location mi km Exit Destinations Notes
Dubuque Dubuque
US 20 west / Great River Road (National Route) north – Dubuque
Continuation into Iowa
Mississippi River 0.0 0.0 Iowa–Illinois state line (Julien Dubuque Bridge)
Jo Daviess East Dubuque 0.7 1.13 IL 35 north (Wisconsin Avenue) – Wisconsin Southern terminus of IL 35
Elizabeth Township 11.2 18.0 IL 84 north – Hazel Green, Wis. Western end of IL 84 overlap
Rawlins Township 26.4 42.5
IL 84 south / Great River Road (National Route) south – Hanover, Savanna
Eastern end of IL 84/Great River Road overlap
Stockton 41.7 67.1 IL 78 south – Mount Carroll Western end of IL 78 overlap
StocktonWards Grove
township line
42.9 69.0 IL 78 north – Warren Eastern end of IL 78 overlap
Stephenson Lena 50.8 81.8 IL 73 – Lena, Pearl City
Freeport 57.4 92.4
US 20 Bus. east – Freeport
Western terminus of US 20 Business
61.8 99.5 IL 26 – Freeport, Monroe, Wis. Interchange
65.0 104.6 IL 75 – Freeport, Rockton Interchange
68.8 110.7
US 20 Bus. west / Springfield Road – Freeport
Eastern terminus of US 20 Business
Winnebago Rockford 85.9 138.2
US 20 Bus. east (State Street)
Western terminus of US 20 Business; Eastbound exit, westbound entrance
87.7 141.1 Meridian Road Interchange
90.1 145.0 Montague Road Interchange
92.7 149.2 IL 2 (Main Street) – Dixon Interchange
94.6 152.2 IL 251 (11th Street) – Rochelle Interchange
96.8 155.8 Alpine Road Interchange
97.3 156.6 I-39 south / US 51 south – Bloomington Western end of I-39/US 51 overlap
100.4 161.6 122 I-39 north / US 51 north to I-90 / Harrison Avenue – Chicago, Wisconsin Eastern end of I-39/US 51 overlap; signed as exits 122A (west) and 122B (east)
Boone Belvidere 106.1 170.8 Appleton Road Interchange
108.0 173.8
US 20 Bus. west (Belvidere Road) to I-90 (Genoa Road)
Eastern terminus of US 20 Business
McHenry Marengo 119.2 191.8 IL 23 (State Street) to IL 176 (Telegraph Street)
Kane Hampshire 128.0 206.0 I-90 (Jane Addams Memorial Tollway) – Chicago, Rockford
Pingree Grove 133.6 215.0 IL 47 north / IL 72 east – West Dundee, Huntley Northern end of IL 47/IL 72 overlap
134.0 215.7 IL 47 south / IL 72 west – Elburn, Hampshire Southern end of IL 47/IL 72 overlap
Elgin 141.5 227.7 CR 34 (Randall Road) Interchange
141.6 227.9 Larkin Avenue Interchange; eastbound exit and westbound entrance only
143.0 230.1 McLean Boulevard Interchange
144.4 232.4 IL 31 (State Street) Interchange
145.1 233.5 IL 25 (Liberty Street)
Cook 146.4 235.6 Villa Street Interchange; westbound exit and eastbound entrance only
Bartlett 148.6 239.1 IL 59 (Sutton Road) – Barrington, West Chicago Interchange
DuPage Hanover Park 152.6 245.6 IL 390 east (Elgin–O'Hare Tollway) – O'Hare Interchange
Addison 158.6 255.2 I-355 south (Veterans Memorial Tollway) / I-290 west (Eisenhower Expressway) – Joliet, Schaumburg
158.8 255.6 IL 53 (Rohlwing Road)
AddisonElmhurst
village line
162.6 261.7 IL 83 (Kingery Highway) Interchange
Elmhurst 163.8 263.6 12 I-290 west (Eisenhower Expressway) – Rockford Western end of I-290 overlap
164.8 265.2 13 I-290 east (Eisenhower Expressway) – Chicago Eastern end of I-290 overlap
165.2 265.9 IL 64 (North Avenue)
Cook Berkeley 167.3 269.2 US 12 west / US 45 north (Mannheim Road) Northern end of US 45 overlap
Bellwood 168.4 271.0 IL 56 west (Washington Boulevard) Eastern terminus of IL 56
169.2 272.3
I-290 / IL 110 (CKC) (Eisenhower Expressway, Chicago–Kansas City Expressway) – Chicago
Westchester 169.7 273.1 IL 38 west (Roosevelt Road) Eastern terminus of IL 38
La Grange 172.9 278.3 US 34 (Ogden Avenue/Walter Payton Memorial Highway)
Hodgkins 176.8 284.5 I-55 (Stevenson Expressway) – Chicago, St. Louis
Justice 178.1 286.6 I-294 south (Tri-State Tollway) – Indiana
178.3 286.9 IL 171 (Archer Avenue/Archer Road)
Palos Hills 180.2 290.0 US 45 south (La Grange Road) Southern end of US 45 overlap
Bridgeview 182.5 293.7 I-294 (Tri-State Tollway) – Wisconsin, Indiana
182.9 294.3 IL 43 (Harlem Avenue)
Oak Lawn 185.9 299.2 IL 50 (Cicero Avenue)
Chicago 191.0 307.4 Halsted Street to (IL 1) to I-57 / Bishop Ford Freeway (I-94 east)
I-94 east (Dan Ryan Expressway) – Chicago Loop Access to I-94 east and from I-94 west only
196.5 316.2 US 41 north (Ewing Avenue) Northern end of US 41 overlap
197.9 318.5 I-90 (Chicago Skyway, Indiana Toll Road) to I-80 / I-94 – Toledo
198.0 318.7 US 12 east / US 20 east / US 41 south (Indianapolis Boulevard) – Hammond Continuation into Indiana
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Business routes[edit]

The US 20 / IL 84 bridge over the Galena River in Galena

US 20 has been rerouted around the cities of Freeport, Rockford, Elgin and Chicago. A bypass is currently planned for Galena.

The longest Business US 20 in Illinois runs 21 miles (34 km) from just west of Rockford to just east of Belvidere. The route begins just west of Weldon Road and runs as State Street into downtown Rockford, where it is split into two one-way streets (Chestnut Street and Walnut Street for eastbound traffic, Jefferson Street for westbound traffic). The route continues east along State Street all the way through Rockford and becomes a two-lane highway between Rockford and Belvidere. Business US 20 is then routed in an outer loop around the city of Belvidere before merging back with US 20 near Genoa Road and I-90.

Business US 20 in Elgin was removed in 1984. This ran along Larkin Avenue, Highland Avenue, Chicago Street and Villa Avenue. The current routing of US 20 south of Elgin is called the Elgin Bypass.

Business US 20 in Chicago was removed in 1968. This existed from 1960 through 1968; before then, it was City US 20 from 1938 to 1960.[2]

See also[edit]

References[edit]

Route map: Bing / Google

  1. ^ a b Illinois Technology Transfer Center (2007). "T2 GIS Data". Retrieved November 8, 2007. 
  2. ^ a b Carlson, Rich (March 15, 2005). "Illinois Highways Page: Routes 1 thru 20". Retrieved April 15, 2006. [self-published source]
  3. ^ "IDOT Announces New Signs to Commemorate Ulysses S. Grant Memorial Highway" (Press release). Illinois Department of Transportation. August 31, 2007. Archived from the original on September 11, 2008. Retrieved September 8, 2007. 
  4. ^ Dees, Dan (November 1, 1974). "Illinois Supplemental Freeway System Proposal" (PDF). Illinois Department of Transportation. Retrieved January 11, 2015 – via Midwest Roads. 
  5. ^ "US 20 Freeport to Galena (Glacier Shadow Pass)". Illinois Department of Transportation. Retrieved January 12, 2015. 
  6. ^ Galena Gazette Staff (December 3, 2013). "Bustos Talks US 20 with Local Leaders". Galena Gazette. Retrieved January 11, 2015 – via Office of Cheri Bustos. 
  7. ^ "US 20 Galena Bypass". Illinois Department of Transportation. Retrieved January 11, 2015. 


U.S. Route 20
Previous state:
Iowa
Illinois Next state:
Indiana