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 Interstate 90 | ||||
|---|---|---|---|---|
| I-90 highlighted in red | ||||
| Route information | ||||
| Maintained by ISTHA, IDOT, and SCC | ||||
| Length | 123.89 mi (199.38 km) | |||
| NHS | Entire route | |||
| Major junctions | ||||
| West end |   I-39 / I-90 at the Wisconsin state line | |||
| Major intersections |
| |||
| East end |  I-90 / Indiana Toll Road at the Indiana state line | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | Winnebago, Boone, McHenry, Kane, Cook | |||
| Highway system | ||||
| ||||
Interstate 90 (I-90) in the US state of Illinois runs roughly northwest-to-southeast through the northern part of the state. From the Wisconsin state line at South Beloit, it heads south to Rockford before heading east-southeast to the Indiana state line at Chicago. I-90 traverses 124 miles (200 km) through a variety of settings, from farmland west of the Fox River Valley through the medium-density suburbs west of O'Hare International Airport, through Downtown Chicago, and through the heart of the industrial southeast side of Chicago before entering Indiana.
I-90 comprises several named highways. The Interstate runs along the Jane Addams Memorial Tollway (previously called the Northwest Tollway) from South Beloit to O'Hare Airport, the Kennedy Expressway from O'Hare to the Chicago Loop, the Dan Ryan Expressway from the Loop to the Chicago Skyway, and the Skyway to the Indiana state line. The Jane Addams and Chicago Skyway are toll roads maintained by the Illinois State Toll Highway Authority (ISTHA) and the Skyway Concession Company (SCC), respectively. The remainder of the highway is maintained by the Illinois Department of Transportation (IDOT).
Route description
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I-90 enters Illinois from Beloit, Wisconsin concurrently with I-39. At Exit 1 (South Beloit), US Route 51 (US 51) joins the two interstates; between the exit and the state line marks the only point US 51 and I-39 are not concurrent in Illinois.
In Rockton, I-39/I-90/US 51 becomes the Jane Addams Memorial Tollway, with the South Beloit Toll Plaza south of the interchange. The three highways first enter the Rockford region at Illinois Route 173, passing by Rock Cut State Park; its first interchange with US 20 is with the business route (State Street) connecting Rockford and Belvidere.
At Cherry Valley, I-90 splits with I-39/US-51 (the latter becomes concurrent for US 20 for five more miles before moving south to Normal.), with I-90 making a 90-degree turn east. Crossing eastward, I-90 (now signed as a single highway) crosses the Kishwaukee River before entering Boone County. From this point to the eastern terminus of both highways in Massachusetts, I-90 and US 20 run a roughly parallel routing (though with no concurrency).
After passing in front of the Stellantis Belvidere Assembly Plant and a westbound toll plaza, the only remaining Illinois Tollway oasis above I-90 is located in Belvidere. The over-highway design provides several vendors in a single location, allowing tollway travelers to rest, eat, and refuel without exiting the tollway.
Turning southeast towards McHenry County, I-90 does not have an interchange for another 11 miles (18 km), until Illinois Route 23 (IL 23) in Riley (five miles north of Marengo). Following the interchange, eastbound traffic passes through the Marengo Toll Plaza.
Entering Kane County, I-90 has a third interchange with US 20, connecting to Hampshire. As it passes its Randall Road exit, I-90 transitions from the rural farmland seen in Boone and McHenry counties to the western terminus of the Chicago suburbs. Following the east/west Elgin Toll Plaza, I-90 widens from six to eight lanes, turning east in direction. Before crossing into Cook County, I-90 crosses the Fox River, entering the Golden Corridor of Illinois.
Before meeting I-290, the tollway passes through Hoffman Estates and Schaumburg, routed through a wide variety of surroundings, including housing, retail centers, and forest preserves. Following the Barrington Road exit, active traffic management gantries are in place. In Schaumburg, I-90 becomes the northern terminus of I-290 (the only Illinois loop of I-90). Turning further southeast towards Elk Grove Village, I-90 is widened from eight to ten lanes. At Elmhurst Road (Illinois 83), the tollway is narrowed to eight lanes, passing north of O'Hare International Airport. Prior to passing through I-190/I-294 (Tri-State Tollway), Rosemont has a final toll plaza on Devon Avenue (westbound) and River Road (eastbound).
The Tri-State Tollway interchange marks the eastern terminus of the Jane Addams Memorial Tollway, with I-90 subsequently becoming a freeway called the Kennedy Expressway. After crossing the Des Plaines River, the Kennedy Expressway enters Chicago. After turning southeast, I-90 joins I-94 (Edens Expressway), heading further southeast. Taking on the path of the Chicago River, the Kennedy Expressway becomes the Dan Ryan Expressway following its intersection of the Jane Byrne Interchange (passing the Eisenhower Expressway). After crossing I-55 (Stevenson Expressway), I-90 continues nearly due south.
In the Englewood neighborhood, I-90 splits from I-94, becoming the six-lane Chicago Skyway. Turning southeast, the highway crosses the Calumet River before continuing into Hammond, Indiana.
History
Jane Addams Memorial Tollway
The 76-mile (122 km) Northwest Tollway portion of I-90 opened on August 20, 1958. Prior to the opening, the first vehicle to officially travel the new roadway was a covered wagon navigated by local resident John Madsen who took five days to make the journey.
On September 7, 2007, highway officials responding to an effort by state lawmakers renamed the Northwest Tollway to Jane Addams Memorial Tollway, after Jane Addams, the Nobel Peace Prize winner and founder of the Settlement House movement in the US.
The Illinois Tollway's 2005–2012 Congestion-Relief Program provided $644.1 million (equivalent to $966 million in 2023) in projects along the I-90 corridor. Projects included rebuilding and widening of the tollway between I-39 and Rockton Road, including a reconfiguration of the I-90/I-39 interchange. This construction started in 2008 and was completed by the end of 2009.
From 2013 to 2016, over $2 billion (equivalent to $2.58 billion in 2023) was spent on rebuilding and widening the Jane Addams Memorial Tollway from I-39 to the Kennedy Expressway. The inside shoulders were widened for future transit opportunities, and active traffic management was incorporated into the corridor from IL 59 to the eastern end. In addition, almost all of the crossroad bridges were rebuilt and several interchanges were reconfigured/expanded. In 2019, a $33.4-million (equivalent to $39.3 million in 2023) interchange with IL 23 was added near Marengo to provide the first I-90 interchange in McHenry County.
Until 1978, I-90 was routed on the Congress Street Expressway (later named the Eisenhower Expressway) which was extended from the Loop to the interchange of the Northwest Tollway and IL 53. The Kennedy Expressway was signed only as I-94, and the portion of present-day I-90 between the Edens Expressway and IL 53 was not signed as an Interstate Highway. This provided a non-toll section of I-90 between Downtown Chicago and IL 53. The route designations were changed to their present form when I-90 was moved to follow the entire length of the Kennedy Expressway and the Jane Addams Tollway, and the original route was designated I-290.
In 2018, ISTHA raised the speed limit on I-90 from 65 to 70 mph (105 to 113 km/h) from the I-39 split to Randall Road. They also raised it from 55 to 70 mph (89 to 113 km/h) from Randall Road to Mount Prospect Road and raised it from 55 to 60 mph (89 to 97 km/h) from Mount Prospect Road to the Kennedy. The speed limit for buses is 65 mph (105 km/h), and the speed limit for trucks is 60 mph (97 km/h).
Chicago Skyway
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The Chicago Skyway toll plaza in 1999 and 2013
The Chicago Skyway was originally known as the Calumet Skyway. It cost $101 million (equivalent to $818 million in 2023) to construct and took about 34 months (nearly three years) to build. Nearly eight miles (13 km) of elevated roadway, the Chicago Skyway was originally built as a shortcut for cars from State Street, a major north–south street on Chicago's South Side that serves the Loop, to the steel mills on the Southeast to the Indiana state line where the Indiana Toll Road begins. Later, when the Dan Ryan Expressway opened, the Chicago Skyway was extended west to connect to it. There are only two eastbound exits east of the toll barrier, whereas there are four westbound exits west of the toll barrier (so that no exits are available until one has crossed the bridge and paid the toll). The Chicago Skyway opened to traffic on April 16, 1958.
The Skyway's official name, referring to it as a "toll bridge" rather than a "toll road", is the result of a legal quirk. At the time of its construction, the city charter of Chicago did not provide the authority to construct a toll road. However, the city could build toll bridges, and it was found that there was no limit to the length of the approaches to the bridge. Therefore, the Skyway is technically a toll bridge spanning the Calumet River with a six-mile-long (9.7 km) approach. This also is part of the reason that there are no exits available until after one has crossed the bridge and paid the toll.
Historically, the Chicago Skyway was signed as, and was widely considered to be part of, I-90 from the mid-1960s forward (after I-90 in this area had been swapped with I-94). However, from around 1999 until 2022, the Chicago Department of Transportation worked under a new assumption that they had never received official approval to designate the Skyway as I-90. The city subsequently replaced most of the "I-90" signage with "TO I-90/I-94" signage. IDOT has always reported and continues to report the Skyway as part of the Interstate Highway System, and the Federal Highway Administration (FHWA) also does consider the Chicago Skyway's roadway as I-90 unless IDOT revokes their designation of such. As of 2022, the Skyway is again signed as I-90, though now denoted with non-standard oversized shields constructed by CDOT.
In the 1960s, the newly constructed Dan Ryan Expressway and the neighboring Calumet, Kingery, and Borman expressways provided free alternatives to the tollway, and the Skyway became much less used. As a result, from the 1970s through the early 1990s, the Skyway was unable to repay revenue bonds used in its construction. Traffic volumes rebounded from the late 1990s onward, partially because of the construction of casinos in Northwest Indiana, along with reconstruction of the Dan Ryan, Kingery, and Borman expressways. In June 2005, the Skyway became compatible with electronic toll collection, with users now able to pay tolls using I-Pass or E-ZPass transponders.
Chicago's Department of Streets and Sanitation formerly maintained the Chicago Skyway Toll Bridge System. A 2004 transaction that gave the city a $1.83-billion (equivalent to $2.83 billion in 2023) cash infusion leased the Skyway to the Skyway Concession Company, a joint-venture between the Australian Macquarie Infrastructure Group and Spanish Cintra, which assumed operations on the Skyway on a 99-year operating lease. The agreement between the Skyway Concession Company and the City of Chicago marked the first time an existing toll road was moved from public to private operation in the US.
Until the summer of 2015, to the south of the toll plaza, an unusually-placed McDonald's restaurant and its parking lot (including a drive-thru) sat in the median of the toll approach as a de facto rest stop before leaving or entering Chicago. The franchisee terminated the lease with the SCC shortly before, blaming closure on the declining profits as the restaurant was more popular for its restrooms than the food it offered. The McDonald's building was later torn down, and the toll approach was further expanded upon its former footprint.
Exit list
| County | Location | mi | km | Exit | Destinations | Notes |
|---|---|---|---|---|---|---|
| Winnebago | South Beloit | 0.00 | 0.00 |   I-39 north / I-90 west – Madison | Continuation into Wisconsin | |
| 0.29 | 0.47 | 1 |    US 51 north / IL 75 – South Beloit | Western end of US 51 concurrency | ||
| Rockton | 2.71 | 4.36 | 3 |  CR 9 (Rockton Road) | Northwestern end of Jane Addams Memorial Tollway | |
| 3.60 | 5.79 | South Beloit Toll Plaza 1 | ||||
| Rockford | 8.94 | 14.39 | 8 |  IL 173 (West Lane Road) – Machesney Park | Tolled westbound exit and eastbound entrance = | |
| 12.47 | 20.07 | 12 |   CR 55 west (East Riverside Boulevard) | Tolled westbound exit and eastbound entrance | ||
| 15.76 | 25.36 | 15 |   US 20 Bus. (State Street) | |||
| Cherry Valley | 17.40 | 28.00 | 17 |     I-39 south / US 51 south to US 20 – Bloomington | Eastern end of I-39/US 51 concurrency | |
| Boone | Belvidere | 20.40 | 32.83 | 20 | Irene Road | Tolled eastbound exit and westbound entrance |
| 22.93 | 36.90 | Belvidere Toll Plaza 5 (westbound) | ||||
| 23.51 | 37.84 | Belvidere Oasis | ||||
| 24.62 | 39.62 | 25 | Belvidere–Genoa Road | Tolled exit ramps | ||
| McHenry | Riley | 36.10 | 58.10 | 36 |  IL 23 – Marengo, Genoa | Tolled exit ramps and westbound entrance |
| 37.39 | 60.17 | Marengo Toll Plaza 7 (eastbound) | ||||
| Kane | Hampshire | 41.54 | 66.85 | 42 | US 20 – Hampshire, Marengo | |
| Huntley | 46.02 | 74.06 | 47 |  IL 47 – Huntley, Woodstock, Elburn | ||
| Elgin | 51.78 | 83.33 | 52 |  CR 34 (Randall Road) | Tolled eastbound exit and westbound entrance | |
| 53.42 | 85.97 | Elgin Toll Plaza 9 | ||||
| 54.22 | 87.26 | 54 |  IL 31 (State Street, 8th Street) – Elgin | Signed as exits 54A (south) and 54B (north); tolled westbound exit and eastbound entrance | ||
| Kane–Cook county line | 55.95 | 90.04 | 56 |  IL 25 (Dundee Avenue) – East Dundee | Tolled westbound exit and eastbound entrance | |
| Cook | Hoffman Estates | 57.77 | 92.97 | 58 | Beverly Road | Westbound exit and eastbound entrance; tolled westbound exit |
| 59.31 | 95.45 | 59 |  IL 59 (Sutton Road) – Barrington | Tolled exit ramps | ||
| 61.81 | 99.47 | 62 | Barrington Road | Single-point urban interchange | ||
| Schaumburg | 65.19 | 104.91 | 65 | Roselle Road | Westbound entrance ramp via Central Road | |
| 66.93 | 107.71 | 67 | Meacham Road | Westbound exit and entrance; no access from I-290 and IL 53 ramp | ||
| Rolling Meadows | 67.84 | 109.18 | 68 |       I-290 east / IL 53 to I-355 south / I-390 – Chicago, West Suburbs, Northwest Suburbs | Signed as exits 68A (east/south) and 68B (north); tolled eastbound exit; western terminus of I-290 | |
| Arlington Heights | 70.47 | 113.41 | 70 | Arlington Heights Road – Elk Grove Village | Tolled eastbound exit and westbound entrance | |
| Des Plaines | 73.25 | 117.88 | 73 |  Elmhurst Road to IL 83 – Bensenville, Mount Prospect | Tolled eastbound exit and westbound entrance | |
| 74 |  I-490 south (Western O'Hare Beltway) – Bensenville | Currently under construction; expected to be complete in 2025 | ||||
| 75.80 | 121.99 | 76 |  IL 72 (Lee Street) – Elk Grove Village | Westbound exit and eastbound entrance | ||
| Rosemont | 76.75 | 123.52 | Devon Avenue Toll Plaza 17 (westbound) | |||
| 77.03 | 123.97 | — | IL 72 (Higgins Road) / Devon Avenue | Westbound entrance | ||
| 77.20 | 124.24 | 77A |   I-190 west (Kennedy Expressway) / I-294 south (Tri-State Tollway) – O'Hare, Indiana | Eastbound exit and westbound entrance; I-190 exit 1C; I-294 exit 40 | ||
| 77B | I-294 north (Tri-State Tollway) – Milwaukee | Signed as exit 77 westbound; I-294 exit 40B | ||||
| 78.20 | 125.85 | River Road Toll Plaza 19 (eastbound) | ||||
| Chicago | 79.28 | 127.59 | 79A-B |  IL 171 (Cumberland Avenue) – Melrose Park | Signed as exits 79A (south) and 79B (north); westbound exits via I-190; eastbound exit 79A via River Road Toll Plaza | |
| 78.65– 79.6 | 126.57– 128.1 | 79C | I-190 west (Kennedy Expressway) to I-294 south (Tri-State Tollway) – O'Hare, Indiana | Westbound exit and eastbound entrance; eastern terminus of I-190; southeastern end of Jane Addams Memorial Tollway; former exit 78 | ||
| 79.99 | 128.73 | 80 | Canfield Road | Westbound exit and eastbound entrance | ||
| 80.84 | 130.10 | 81A |  IL 43 (Harlem Avenue) – River Forest | |||
| 81.14 | 130.58 | 81B | Sayre Avenue | Westbound exit and eastbound entrance | ||
| 81.85 | 131.72 | 82A | Nagle Avenue | No westbound exit | ||
| 82.09 | 132.11 | 82B | Bryn Mawr Avenue | Westbound exit | ||
| 82.31 | 132.47 | 82C | Austin Avenue to Foster Avenue | Eastbound exit | ||
| 82.79 | 133.24 | 83A | Foster Avenue | No eastbound exit | ||
| 83.01 | 133.59 | 83B | Central Avenue | Westbound exit and eastbound entrance | ||
| 83.71 | 134.72 | 84 | Lawrence Avenue | Eastbound To I-94 | ||
| 84.35– 84.59 | 135.75– 136.13 | 43B |  I-94 west (Edens Expressway) – Milwaukee | Western end of I-94 concurrency; westbound exit and eastbound entrance; western end of reversible express lanes | ||
| 84.77 | 136.42 | 43C | Montrose Avenue | Westbound exit and eastbound entrance | ||
| 85.03 | 136.84 | 43D | Kostner Avenue | Westbound exit | ||
| 85.39– 85.62 | 137.42– 137.79 | 44A |  IL 19 (Irving Park Road) / Keeler Avenue – Elgin | No westbound exit | ||
| 85.62– 85.81 | 137.79– 138.10 | 44B | IL 19 (Irving Park Road) / Pulaski Road | Westbound exit and eastbound entrance | ||
| 86.34 | 138.95 | 45A | Addison Street | |||
| 86.77 | 139.64 | 45B | Kimball Avenue | |||
| 87.08 | 140.14 | 45C | Belmont Avenue / Kedzie Avenue | Westbound exit and eastbound entrance | ||
| 87.64 | 141.04 | — | Sacramento Avenue | Eastbound entrance | ||
| 87.79 | 141.28 | 46A | California Avenue | Eastbound exit and westbound entrance | ||
| 87.96 | 141.56 | 46B | Diversey Avenue | Westbound exit and eastbound entrance | ||
| 88.53– 88.90 | 142.48– 143.07 | 47A | Western Avenue / Fullerton Avenue | Westbound exit and eastbound entrance from Western Avenue | ||
| 89.08 | 143.36 | 47B | Damen Avenue | Westbound exit and eastbound entrance | ||
| 89.52 | 144.07 | 48A | Armitage Avenue | Eastbound traffic uses Armitage Avenue to Ashland Avenue | ||
| 90.10 | 145.00 | 48B |  IL 64 (North Avenue) – Melrose Park | Westbound traffic uses North Avenue to Ashland Avenue | ||
| 90.66 | 145.90 | 49A | Division Street | |||
| 90.91 | 146.31 | 49B | Augusta Boulevard / Milwaukee Avenue | Westbound exit and eastbound entrance | ||
| 91.40 | 147.09 | 50A | Ogden Avenue | Eastbound exit and westbound entrance | ||
| 91.62 | 147.45 | 50B | Ohio Street | Eastern end of reversible express lanes | ||
| 92.19 | 148.37 | 51A | Lake Street | Westbound exit and eastbound entrance | ||
| 92.27 | 148.49 | 51B | Randolph Street west | |||
| 92.34 | 148.61 | 51C | Washington Boulevard east | Exits only; no entrances | ||
| 92.44 | 148.77 | 51D | Madison Street | |||
| 92.53 | 148.91 | 51E | Monroe Street | Eastbound exit | ||
| 92.62 | 149.06 | 51F | Adams Street west | Eastbound exit and westbound entrance | ||
| 92.71 | 149.20 | 51G | Jackson Boulevard east | Eastbound exit and westbound entrance | ||
| 92.72– 93.35 | 149.22– 150.23 | 51H |    I-290 west / IL 110 (CKC) west (Eisenhower Expressway) – Aurora | Jane Byrne Interchange; southeastern end of Kennedy Expressway; northern end of Dan Ryan Expressway; eastern termini of I-290/IL 110 | ||
| 51I | Ida B. Wells Drive | |||||
| 93.42 | 150.34 | 51J | Taylor Street / Roosevelt Road | Eastbound exit and westbound entrance; former exit 52A | ||
| 93.57 | 150.59 | 52B | Roosevelt Road / Taylor Street | Westbound exit and eastbound entrance | ||
| 94.22 | 151.63 | 52C | 18th Street | Eastbound exit and westbound entrance | ||
| 94.48 | 152.05 | 53A | Canalport Avenue / Cermak Road | Westbound exit and eastbound entrance; Chinatown exit | ||
| 94.22– 96.04 | 151.63– 154.56 | 53 |  I-55 (Stevenson Expressway) / 22nd Street – St. Louis, Lake Shore Drive, Chinatown | Signed as exits 53B (south) and 53C (north) westbound; I-55 exits 292 and 293B; Cermak Road access from westbound only; western end of express lanes | ||
| 96.16 | 154.75 | 54 | 31st Street | |||
| 96.45 | 155.22 | 55A | 35th Street | Access to Rate Field and the Illinois Institute of Technology | ||
| 96.98 | 156.07 | 55B | Pershing Road | |||
| 97.44 | 156.81 | 56A | 43rd Street | |||
| 97.97 | 157.67 | 56B | 47th Street | |||
| 98.88 | 159.13 | 57 | Garfield Boulevard | |||
| 99.50 | 160.13 | 58A | 59th Street | Westbound exit and eastbound entrance | ||
| 100.00 | 160.93 | 58B | 63rd Street | Eastbound exit and westbound entrance | ||
| 100.00– 100.33 | 160.93– 161.47 | 59A | I-94 east (Dan Ryan Expressway) – Indiana | Eastern end of I-94 concurrency; eastern end of express lanes; eastbound exit and westbound entrance | ||
| 100.33 | 161.47 | 100 | State Street | Westbound exit and eastbound entrance | ||
| 101.42 | 163.22 | 101 | St. Lawrence Avenue | Westbound exit and eastbound entrance | ||
| 101.78 | 163.80 | 102 | 73rd Street | Westbound exit and eastbound entrance | ||
| 103.04– 103.33 | 165.83– 166.29 | 103 | Stony Island Avenue north to Lake Shore Drive | Westbound exit and eastbound entrance | ||
| 103.93 | 167.26 | — | Jeffery Boulevard | Eastbound entrance | ||
| 104.28 | 167.82 | 104 | 87th Street | Westbound exit | ||
| 104.67 | 168.45 | Chicago Skyway Toll Plaza | ||||
| 105.26 | 169.40 | 105 | Anthony Avenue / 92nd Street | Eastbound exit and westbound entrance | ||
| 105.82– 106.21 | 170.30– 170.93 | Chicago Skyway Toll Bridge | ||||
| 107.62 | 173.20 | 107 |    US 12 / US 20 / US 41 / LMCT (Indianapolis Boulevard) – Bellwood / 104th Street | Eastbound exit and westbound entrance | ||
| 107.82 | 173.52 |    I-90 east / Indiana Toll Road east to I-65 south / I-80 / I-94 – Toledo | Continuation into Indiana | |||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
| ||||||
Related routes
I-90 has two related auxiliary Interstate Highways within Illinois. I-190 is a spur into O'Hare International Airport in Chicago that is also known as the Kennedy Expressway O'Hare Extension or the O'Hare Expressway. I-290 takes a southeasterly dogleg left route accessing the western suburbs and heading eastward into Downtown Chicago. It is also known as the Dwight D. Eisenhower Expressway. A third route, the Western O'Hare Beltway, is under construction and has been designated I-490. This new route, passing along the west side of O'Hare between I-90 and I-294, is expected to open in 2026.
See also
References
- Starks, Edward (January 27, 2022). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved September 18, 2022.
- "N. W. Tollway Opens Aug. 20 at Ceremony". Chicago Daily Tribune. June 30, 1958. Archived from the original on October 26, 2012. Retrieved April 18, 2010 – via ProQuest Archiver.
- "First Tollway Vehicle to Be Covered Wagon". The Milwaukee Journal. Associated Press. August 11, 1958. part 1, p. 10. Retrieved April 18, 2010 – via Google News.
- Ryan, Joseph (September 7, 2007). "Northwest Tollway Renamed for Reformer Addams". Daily Herald. Arlington Heights, IL. Retrieved September 8, 2007.
- Illinois General Assembly (May 22, 2007). "Full text of HJR0019". Retrieved September 8, 2007.
- ^ Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved November 30, 2023. United States Gross Domestic Product deflator figures follow the MeasuringWorth series.
- Illinois State Toll Highway Authority (2011). Congestion Relief Program: 2011 Update (PDF) (Report). Illinois State Toll Highway Authority. Retrieved September 19, 2014.
- Illinois State Toll Highway Authority. "Cherry Valley Interchange (I-90/39) Reconstruction and Reconfiguration" (PDF). Illinois State Toll Highway Authority. Retrieved September 19, 2014.
- "Transit on I-90" (PDF). Jane Addams Memorial Tollway Rebuilding and Widening Project. Illinois State Toll Highway Authority. Retrieved September 19, 2014.
- "A Smart, State-of-the-Art, 21st Century Corridor" (PDF). Jane Addams Memorial Tollway Rebuilding and Widening Project. Illinois State Toll Highway Authority. Retrieved September 19, 2014.
- "New and Improved Interchanges" (PDF). Jane Addams Memorial Tollway Rebuilding and Widening Project. Illinois State Toll Highway Authority. Retrieved September 19, 2014.
- "Interchange Route 23 Interchange Project". Illinois State Toll Highway Authority. March 20, 2019. Retrieved July 26, 2019.
- "New 70 MPH Speed Limit on I-90 Segment in Northwest Suburbs Now Matches Segment from Elgin to Wisconsin". Cardinal News. March 28, 2018. Retrieved October 21, 2020.
- ^ Foust, Hal (April 17, 1958). "A Great Day For Chicago! Skyway Open". Chicago Tribune. Archived from the original on November 2, 2012. Retrieved June 21, 2010.
- Chicago Area Transportation Study. "System Facilities". Chicago Area Transportation Study. Archived from the original on June 18, 2007. Retrieved July 7, 2007.
- Mayer, Harold M.; Wade, Richard C. (1969). Chicago: Growth of a Metropolis. Chicago: University of Chicago Press. p. 442. ISBN 0-226-51274-6.
- Samuel, Peter (June 29, 2005). "Skyway Is Interstate 90 Unless State Withdraws Reports: Feds". TollRoadsNews. Retrieved January 3, 2010.
- McClendon, Dennis (2005). "Skyway". Encyclopedia of Chicago. Retrieved July 7, 2007.
- Illinois Department of Transportation (2005). "Getting Around Illinois". Illinois Department of Transportation. Archived from the original on June 30, 2007. Retrieved July 7, 2007.
- Hilkevitch, Jon. "Skyway will add I-PASS". Chicago Tribune. Retrieved July 14, 2019.
- "Chicago privatizes Skyway toll road in $1.8 billion deal". Southern Illinoisian. Carbondale, IL. Associated Press. October 17, 2004. Retrieved March 4, 2008.
- Amer, Robin (July 10, 2015). "Skyway McDonald's Is Shut Down, Where Will Drivers Go When They Need To Go?". DNAInfo. Block Club Chicago. Retrieved June 29, 2023.
- "Skyway McDonald's Closes, Chicago Reacts". NBC Chicago. WMAQ-TV. July 11, 2015. Retrieved June 29, 2023.
- Illinois Technology Transfer Center (2011). "GIS Data". Illinois Department of Transportation. Archived from the original (ESRI shapefile) on June 26, 2013. Retrieved February 18, 2013.
- "Construction underway for new I-490 western O'Hare corridor to I-90, Rt. 390, Tri-State Tollway". April 29, 2021.
External links
KML file (edit • help) Template:Attached KML/Interstate 90 in IllinoisKML is from Wikidata- Illinois Tollway official site
- Official website of the Chicago Skyway
- Chicago Department of Transportation
- Description and history at Richard Carlson's Illinois Highways
- Historic, Current & Average Travel Times For The Jane Addams Tollway
- Best of Transportation Page
- Chicago Skyway (I-90) at Steve Anderson's ChicagoRoads.com
- Historic American Engineering Record (HAER) No. IL-145, "Chicago Skyway Toll Bridge"
- Chicago Skyway High Bridge at Structurae
 Interstate 90
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| Previous state: Wisconsin |
Illinois | Next state: Indiana |
| Bridges of the Calumet River | ||||
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