Interstate 180 (Illinois)
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| Interstate 180 Auxiliary route of the Interstate Highway System |
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| Length: | 13.19 mi (21.22 km) |
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| Formed: | 1967 (finished 1969) |
| South end: |   Illinois Routes 26/71 in Hennepin, Illinois |
| North end: |  Interstate 80 north of Princeton, Illinois |
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Interstate 180 (abbreviated I-180) is a north-south spur highway that runs from Princeton, Illinois to the small town of Hennepin, Illinois on its southern terminus. It is 13.19 miles (21.22 km) long.
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[edit] Route description
The freeway was built primarily to connect Interstate 80 to a steel plant in Hennepin. However, the steel plant closed soon after I-180 was built, and did not re-open until August 2002. Although the steel plant is now operational, I-180 is still one of the least traveled interstates in the nation, serving an average of 2,000 - 2,500 vehicles per day. (For comparable numbers, Interstate 190 connecting O'Hare to Chicago serves 109,000 vehicles per day, Interstate 80 serves 20,900 vehicles per day in that area, and remote Interstate 24 downstate serves 15,000 vehicles per day.)
Interstate 180 winds through a forested, hilly area in north-central Illinois. The local topography surrounding I-180 is heavily influenced by the Illinois River. It has four lanes for its entire length.
[edit] Interchanges
Italicized destinations are unofficial control cities. Control cities are not provided at all interchanges on Interstate 180. IDOT does not provide exit numbers for any exits on I-180.
| County | Location | Mile | Destinations | Notes |
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| Bureau | Hennepin | 0.0 | Illinois Route 71 - Granville, Oglesby
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Southern terminus of Interstate 180. |
| 1.0 | Illinois River | |||
| Bureau Junction | 2.5 | Illinois Route 26 North - Bureau Junction
To |
Northbound (westbound geographically) exit only. | |
| 3.5 | To  Illinois Route 29 South - Peoria |
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| 8.0 | Illinois Route 26 - Princeton |
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| Unincorporated | 12.0 |  U.S. Route 6 - Princeton, Spring Valley |
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| 13.2 | Interstate 80 - Davenport, Iowa, Joliet, Illinois |
Northern terminus of Interstate 180. | ||
[edit] Notes
- I-180 intersects Illinois Route 29. That serves as the beginning of a northern path to Peoria, Illinois, making it one of the proposed routes of the Peoria-to-Chicago Highway.
- Illinois 26 is multiplexed with the highway over the Illinois River. Northwest of the river crossing, Illinois 26 and Interstate 180 meet again between Princeton and Bureau Junction.
- Illinois 71 begins at Interstate 180 and continues to the east, serving as the main east-west artery east of Hennepin along with U.S. 6.
[edit] External resources
- Kurumi's Roads Page -- Interstate 180
- Illinois Highway Ends - I-180
- Roads of the Mid-South and West: Interstate 180
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Auxiliary routes of Interstate 80 |
| I-180 | Illinois - Nebraska - Pennsylvania - Wyoming |
| I-280 | California - Illinois/Iowa - New Jersey - Ohio |
| I-380 | California - Iowa - Pennsylvania |
| I-480 | Iowa/Nebraska - Ohio |
| I-580 | California - Nevada |
| I-680 | California - Iowa/Nebraska - Ohio |
| I-780 | California |
| I-880 | California |
| I-980 | California |
| past/ future |
I-180: California - Pennsylvania - I-280: Iowa/Nebraska - Pennsylvania - I-480: California - Pennsylvania - I-580: Nebraska - I-680: Pennsylvania |
| Browse numbered routes | ||||
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<  ILL 180 |
IL | ILL 183  > |
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