Illinois Route 111 | ||||
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IL 111 highlighted in red
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| Route information | ||||
| Maintained by IDOT | ||||
| Length | 82.18 mi[1] (132.26 km) | |||
| Existed | 1924[2]–present | |||
| Major junctions | ||||
| South end | Lake Drive in Centreville | |||
| Major intersections |  I-64inWashington Park   I-55 / I-70 / US 40inCollinsville I-270inPontoon Beach  US 67 / IL 3inAlton US 67 / IL 267inGodfrey | |||
| North end |  IL 104inWaverly | |||
| Location | ||||
| Country | United States | |||
| State | Illinois | |||
| Counties | St. Clair, Madison, Jersey, Macoupin, Morgan | |||
| Highway system | ||||
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Illinois Route 111 (IL 111) is an 82.18-mile-long (132.26 km) north–south state highway in the southwestern part of the U.S. state of Illinois. It travels from Short Street (near Lake Drive and 1⁄4 mile (0.40 km) northwest of Interstate 255) in CentrevilletoIL 104inWaverly.
IL 111 has concurrencies with IL 3inAlton, U.S. Route 67 (US 67) in Godfrey, and IL 267 from Godfrey to Medora.
In August 1960, a new alignment in Alton on what is now the Homer M. Adams Parkway opened to traffic from IL 100toIL 140.[3] A second new alignment, Bellwood Road Extension in Bethalto, opened a few years later that would link IL 111 up with Vaughn and Central in Wood River. The original alignment of IL 111 in Alton had it cut up Sixth Street in Wood River, Old Alton–Edwardsville Road (with a concurrency with then-IL 159), and up Broadway in Alton until its concurrency with US 67 using Belle Street.
SBI Route 111 originally traveled from Waverly to Alton on modern-day IL 111. In 1942, it was extended south to Fairmont City. In 1953, it was extended further south to near East Saint Louis, which became Centreville. In 2001, when US 67 was moved west through Jerseyville, IL 267 took its place north of Medora. Some time after, IL 267 was applied south along with IL 111 on a concurrency.
| County | Location | mi[4] | km | Destinations | Notes | |||
|---|---|---|---|---|---|---|---|---|
| St. Clair | Centreville | 0.0 | 0.0 | Lake Drive | ||||
| Washington Park | 1.5 | 2.4 | I-64 – Mt. Vernon, St. Louis | I-64 exit 6 | ||||
| Madison | Fairmont City | 4.6 | 7.4 | I-55 / I-70 / US 40 – Chicago, St. Louis | I-55 / I-70 exit 6 | |||
| Pontoon Beach | 9.2 | 14.8 |  IL 162 – Granite City, Troy | |||||
| 11.8 | 19.0 | I-270 – St. Charles, Effingham | I-270 exit 6 | |||||
| 12.1 | 19.5 |  Historic US 66 (Chain of Rocks Road) | ||||||
| Wood River | 19.0 | 30.6 |  IL 143 – Alton, Edwardsville | |||||
| 20.5 | 33.0 |  IL 255 – Alton | IL 255 exit 8 | |||||
| Bethalto | 22.6 | 36.4 |   IL 140 east – Bethalto | South end of IL 140 concurrency | ||||
| 22.9 | 36.9 | IL 255 – Godfrey | IL 255 exit 10 | |||||
| Alton | 26.5 | 42.6 |   IL 3 south / IL 140 west – Granite City | North end of IL 140 concurrency; south end of IL 3 concurrency | ||||
| Godfrey | 30.3 | 48.8 |  IL 3 north – Grafton | North end of IL 3 concurrency | ||||
| 30.9 | 49.7 | US 67 south – Alton | South end of US 67 concurrency | |||||
| 33.4 | 53.8 | US 67 north / IL 267 – Jerseyville | North end of US 67 concurrency; south end of IL 267 concurrency | |||||
| 33.6 | 54.1 | IL 255 | ||||||
| Jersey |
No major junctions | |||||||
| Macoupin | | 44.5 | 71.6 |  IL 16 – Jerseyville, Gillespie | ||||
| Medora | 48.7 | 78.4 | IL 267 north – Jacksonville | North end of IL 267 concurrency | ||||
| | 60.0 | 96.6 |  IL 108 east – Carlinville | South end of IL 108 concurrency | ||||
| | 60.9 | 98.0 | IL 108 west – Carrollton | North end of IL 108 concurrency | ||||
| Morgan | Waverly | 82.18 | 132.26 | IL 104 – Jacksonville, Taylorville | ||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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