Illinois Route 23: Difference between revisions
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Revision as of 02:37, 22 December 2019
 Illinois Route 23 | ||||
|---|---|---|---|---|
 IL 23 highlighted in red | ||||
| Route information | ||||
| Maintained by IDOT | ||||
| Length | 122.42 mi[1] (197.02 km) | |||
| Existed | November 5, 1918[2]–present | |||
| Major junctions | ||||
| South end |  IL 116 in Pontiac | |||
 I-55 in Pontiac  US 6 / IL 71 in Ottawa I-80 in Ottawa US 52 in Serena US 34 in Leland US 30 in Waterman US 20 in Marengo | ||||
| North end |  US 14 in Harvard | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | Livingston, LaSalle, DeKalb, McHenry | |||
| Highway system | ||||
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Illinois Route 23 (IL 23) is a north–south state highway in northern Illinois. It runs from Illinois Route 116 in Pontiac north to U.S. Route 14 south of Harvard. This is a distance of 122.42 miles (197.02 km).[1]
Illinois 23 was established in 1918 as one of the original 46 SBI routes. The routing of Illinois 23 has not changed since its establishment.
Route description
Illinois 23 is a major arterial route in rural central and north-central Illinois. It is a parallel to the Interstate 39/U.S. Route 51 combination approximately 20 miles (32 km) to the west.
The road starts near downtown Pontiac and runs as the main highway north, intersecting with Interstate 55 and former U.S. Route 66. From this point, Illinois 23 continues as a 2-lane highway, turning west and running through Cornell. After that, it turns back north to travel through the middle of Streator, where the route splits to follow two different one-way streets (Park Street and Bloomington Street). Route 23 continues through Grand Ridge to Ottawa, where the road follows 1st Ave and State street, to form a concurrent with Illinois Route 71—Illinois 71 across the Illinois River. The highway once again splits into two one-way streets (Columbus and LaSalle Streets) through downtown Ottawa, until a block south of its junction with U.S. Route 6, where Illinois 71 departs toward the east.
North of Ottawa, Illinois 23 has a full diamond interchange with Interstate 80. Illinois 23 has two additional concurrencies with U.S. Route 34 and U.S. Route 52, though no notable cities are present between Ottawa and DeKalb. Illinois 23 runs under Interstate 88 with no intersection, though access is available via Fairview Drive to two parallel roads with interchanges (Peace Road and Annie Glidden Road). Between DeKalb and Sycamore, Illinois 23 has four lanes. In Sycamore, Illinois 23 briefly overlaps Illinois Route 64. After one final concurrency at Illinois Route 72 near Genoa, Illinois 23 travels over Interstate 90; an interchange will be opening in late 2019.[3] It runs through Marengo and terminates south of Harvard at U.S. Route 14.
Major intersections
| County | Location | mi[4] | km | Destinations | Notes |
|---|---|---|---|---|---|
| Livingston | Pontiac | 0.0 | 0.0 |   IL 116 (Howard Street) / Historic US 66 south | South end of Historic US 66 overlap |
| 0.4 | 0.64 |  Historic US 66 north | North end of Historic US 66 overlap | ||
| | 2.6 | 4.2 | I-55 – Joliet, Bloomington | I-55 exit 201 | |
| | 7.4 | 11.9 |   IL 170 north | ||
| | 21.9 | 35.2 |  IL 17 | ||
| La Salle | Streator | 26.0 | 41.8 |  IL 18 (Bridge Street, Main Street) | |
| Ottawa | 41.3 | 66.5 |  IL 71 west (Hitt Street) | South end of IL 71 overlap | |
| Illinois River | 41.4 | 66.6 | Ottawa Bridge | ||
| Ottawa | 42.4 | 68.2 |  US 6 / IL 71 east (Norris Drive) | North end of IL 71 overlap | |
| 43.9 | 70.7 | I-80 – Joliet, Moline, Rock Island | I-80 exit 90 | ||
| | 50.4 | 81.1 | US 52 west (North 37th Road) | South end of US 52 overlap | |
| | 52.4 | 84.3 | US 52 east (North 38th Road) | North end of US 52 overlap | |
| | 59.5 | 95.8 | US 34 west (Walter Payton Memorial Highway) | South end of US 34 overlap | |
| | 63.6 | 102.4 | US 34 east (Walter Payton Memorial Highway) | North end of US 34 overlap | |
| DeKalb | Waterman | 74.3 | 119.6 | US 30 (Lincoln Street) | |
| DeKalb | 85.4 | 137.4 |  IL 38 (Lincoln Highway) | ||
| Sycamore | 90.8 | 146.1 | Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value). | South end of IL 64 overlap | |
| 91.4 | 147.1 | Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value). | North end of IL 64 overlap | ||
| Genoa | 98.9 | 159.2 |  IL 72 west (Main Street) | South end of IL 72 overlap | |
| | 100.9 | 162.4 | IL 72 east | North end of IL 72 overlap | |
| McHenry | | 107.2 | 172.5 |   I-90 Toll (Jane Addams Memorial Tollway) – Chicago, Rockford | Opened on December 20, 2019 |
| Marengo | 112.2 | 180.6 | US 20 (General Grant Highway) | ||
| 112.7 | 181.4 |  IL 176 (Telegraph Street) | |||
| Harvard | 126.17 | 203.05 | US 14 (Division Street) | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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Notes
- In downtown De Kalb, Route 23 (the main north–south street) intersects as 4th Street with Illinois Route 38 (the main east–west street) at a railroad crossing, as two Union Pacific tracks pass through the crossing. Trains routinely bring traffic in De Kalb to a halt.
References
- ^ a b Illinois Technology Transfer Center (2007). "T2 GIS Data". Retrieved 2007-11-08.
- ^ Carlson, Rick. Illinois Highways Page: Interstates in Illinois. Last known update March 15, 2006. Retrieved March 21, 2006.
- ^ "I-90/Illinois Route 23 interchange project". Retrieved 20 April 2019.
- ^ Google Maps, [1]