Illinois Route 123 | ||||
---|---|---|---|---|
IL 123 highlighted in red | ||||
Route information | ||||
Maintained by IDOT | ||||
Length | 33.72 mi [1] (54.27 km) | |||
Existed | 1924 [2] –present | |||
Major junctions | ||||
West end | ![]() | |||
![]() | ||||
East end | ![]() | |||
Location | ||||
Counties | Sangamon, Menard | |||
Highway system | ||||
|
Illinois Route 123 (IL-123) is an east–west state highway in central Illinois, USA. 33.72 miles (54.27 km) long, [1] it stretches from Historic Route 66 at Williamsville [3] to Illinois Route 125 near Pleasant Plains.
All of IL-123's route is contained within Sangamon and Menard counties. Major towns located on or adjacent to IL-123 include Athens, Petersburg, and Williamsville.
New Salem, the home of Abraham Lincoln in the 1830s, has been reconstructed as Lincoln's New Salem State Historic Site near Petersburg on IL-123.
SBI Route 123 was what Illinois 123 is now, plus a road from Ashland south to Alexander at Interstate 72/U.S. Route 36. In 1999, Illinois 123 was truncated on its southern end to Illinois 125. In October 2003, Illinois 123 was extended east to Williamsville, replacing some of Illinois Route 124 in the process as well as all of Sangamon County Route 11. [2]
County | Location | mi [4] | km | Destinations | Notes |
---|---|---|---|---|---|
Menard | | 0.00 | 0.00 | ![]() | Western terminus of IL 123 |
9.4 | 15.1 | ![]() | Southern end of IL 97 concurrency | ||
Petersburg | 14.4 | 23.2 | ![]() | Northern end of IL 97 concurrency | |
| 21.3 | 34.3 | ![]() | Northern end of IL 29 concurrency | |
Sangamon | Fancy Creek Township | 27.0 | 43.5 | ![]() | Southern end of IL 29 concurrency |
30.6 | 49.2 | ![]() | Western terminus of IL 124 | ||
Williamsville | 33.72 | 54.27 | ![]() ![]() | West end of Historic US 66 overlap | |
34.0 | 54.7 | ![]() | Eastern terminus of IL 123; east end of Historic US 66 overlap | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
|
Interstate 39 (I-39) is a highway in the Midwestern United States. I-39 runs from Normal, Illinois at I-55 to Wisconsin Highway 29 (WIS 29) in the town of Rib Mountain, Wisconsin, which is approximately six miles (9.7 km) south of Wausau. I-39 was designed to replace U.S. Route 51 (US 51), which in the early 1980s was one of the busiest two-lane highways in the United States. I-39 was built in the 1980s and 1990s. In Illinois, the route has a total length of 140.82 miles (226.63 km). In Wisconsin, I-39 has a distance of 182 miles (293 km). With the exception of an eight-mile (13 km) segment around Portage, the Interstate shares a route with at least one other route number in I-39's entirety. From Rockford to Portage, I-39 is concurrent with I-90. I-94 joins the pair in Madison until Portage. At 29 miles (47 km) in length, this concurrency of three Interstates is the longest in the country. From Portage northward, US 51 is co-signed with the Interstate and has exit numbers based on its mileage.
Sangamon County is located in the center of the U.S. state of Illinois. According to the 2010 census, it had a population of 197,465. Its county seat and largest city is Springfield, the state capital.
Lincoln's New Salem State Historic Site is a reconstruction of the former village of New Salem in Menard County, Illinois, where Abraham Lincoln lived from 1831 to 1837. While in his twenties, the future U.S. President made his living in this village as a boatman, soldier in the Black Hawk War, general store owner, postmaster, surveyor, and rail splitter, and was first elected to the Illinois General Assembly.
Illinois Route 50 (IL 50) is a 66.49-mile-long (107.01 km) north–south state road in northeastern Illinois. It runs from the junction with U.S. Route 45 (US 45) and U.S. Route 52 (US 52) in West Kankakee north to US 41 in Skokie. In Chicago and the suburbs it's known as Cicero Avenue. Before this, Cicero Avenue was previously known as 48th Avenue, owing to its City of Chicago address of 4800 West.
Illinois Route 72 is an east–west state road in northern Illinois. It runs from the intersection with Illinois Route 73 north of Lanark east to Illinois Route 43 in Chicago. This is a distance of 110.71 miles (178.2 km).
Illinois Route 53 (IL 53) is an arterial north–south state highway in northeast Illinois. IL 53 runs from Main Street west of historic U.S. Route 66 (US 66) in Gardner to IL 83 in Long Grove, a distance of 82.02 miles (132.00 km). It mainly cuts through the western suburbs of Chicago, passes through Bolingbrook, Romeoville, Crest Hill and Joliet, merging into I-55 at Gardner.
Illinois Route 2 is a north–south state road in northern Illinois. It currently starts at Illinois Route 40 in Sterling and ends at the Wisconsin state line in South Beloit, very near the intersection with U.S. Route 51, Illinois Route 75 and Illinois Route 251. Illinois 2 is 73.91 miles (118.95 km) long.
Illinois Route 47 (IL 47) is a 169.76-mile-long (273.20 km) largely rural north–south state highway that runs from the Wisconsin state border at Highway 120 near Hebron, to IL 10, just south of Interstate 72 (I-72) near Seymour. IL 47 is in primarily rural areas but in several suburbs of Chicago, such as Woodstock, traffic can be heavily congested.
Illinois Route 31 (IL 31) is a 58.41-mile-long (94.00 km) north–south state road in northeastern Illinois, United States. It travels from U.S. Route 34 (US 34) in Oswego north to US 12, near the Wisconsin state line, just south of Richmond.
Illinois Route 4 is a long state road that runs south from the Interstate 55 business loop around the state capital of Springfield, south to Illinois Route 13 just north of Murphysboro. This is a distance of 170.44 miles (274.30 km).
Illinois Route 38 is a 88.86-mile-long (143.01 km) west–east state highway that runs across northern Illinois. It runs from U.S. Route 52 (US 52) in downtown Dixon to US 12/US 20/US 45 in Westchester. It runs concurrently with the Lincoln Highway between Dixon and the junction of Illinois Route 31 in Geneva where it transitions via State Street onto Roosevelt Road at the junction of Kirk Road and continues through the western suburbs to its terminus at the junction of Mannheim Road. Roosevelt Road continues on an additional 14 miles without a route designation until terminating at US 41.
Illinois Route 336 is a four-lane freeway/expressway combination that serves western Illinois. It is also used by the Illinois Department of Transportation (IDOT) as a part of Federal-Aid Primary Highway 315 (FAP315) to refer to a future project connecting the cities of Quincy and Peoria via underserved Macomb.
Illinois Route 97 (IL 97) is a north–south state highway in the central and western portions of the U.S. state of Illinois. It extends from I-55 Business in Springfield northwest to U.S. Highway 150 (US 150) near Galesburg. It crosses over the Illinois River on a bridge west of Havana. This is a distance of 102.23 miles (164.52 km).
Illinois Route 104 is a state highway in central and western Illinois. It extends from Illinois Route 29 near Taylorville, west over the Illinois River at Meredosia to its western terminus in downtown Quincy. This is a distance of 125.91 miles (202.63 km).
Illinois Route 125 (IL-125) is a major 37.10 miles (59.71 km) highway in the central portion of the U.S. state of Illinois. Illinois 125 runs east from the concurrent U.S. Route 67 and Illinois Route 100 near Beardstown to Illinois Route 97 in Farmingdale, west of Springfield.
Illinois Route 146 is an east–west state highway in the U.S. state of Illinois. It serves the extreme southern region of the state, commonly called Little Egypt or the Illinois Ozarks. IL-146 is 92.93 miles (149.56 km) long. An east–west highway, it serves Hardin County, Pope County, Johnson County, Union County, and Alexander County. These are some of the least-populated counties in Illinois. IL-146 serves two sections of the Shawnee National Forest.
Illinois Route 105 (IL-105) is a highway in the U.S. state of Illinois. It is an east–west highway that runs from Illinois Route 48 in Decatur to Interstate 72 near Monticello. Illinois 105 is 37.58 miles (60.48 km) long.
Illinois Route 121 (IL 121) is a 109.48-mile-long (176.19 km) major state highway in the central part of the U.S. state of Illinois. Although it travels from northwest to southeast, it is marked as a north–south highway. It travels from IL 130 in Greenup to Interstate 55 (I-55) in Lincoln at the interchange of I-55 and IL 10.
Illinois Route 124 is a 5.71-mile-long (9.19 km) state road in central Illinois. It has the distinction of being marked as an east–west route, but IL 124 runs entirely north–south for the majority of its route. IL 124 runs from IL 123 between Athens and Williamsville to the Business Loop for Interstate 55 (I-55) around Springfield at Sherman.
Interstate 55 (I-55) is a major north–south Interstate Highway in the U.S. state of Illinois that connects the St. Louis, Missouri, and Chicago metropolitan areas. It enters the state from Missouri on the Poplar Street Bridge near East St. Louis and runs to U.S. Route 41 near downtown Chicago where the highway ends, a distance of 294.38 miles (473.76 km). The Road also runs through the cities of Springfield, Bloomington, and Joliet. The section in DuPage County is officially named Joliet Freeway or Will Rogers Freeway and in Cook County is officially named the Stevenson Expressway.