Illinois Route 142

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Illinois Route 142 marker

Illinois Route 142
Route information
Maintained by IDOT
Length: 55.06 mi[2] (88.61 km)
Existed: 1926[1] – present
Major junctions
North end: IL 37 in Mt. Vernon
IL 14 / IL 242 in McLeansboro
US 45 in Eldorado
IL 13 north of Equality
South end: Calhoun Street in Equality[3]
Counties: Jefferson, Hamilton, Saline, Gallatin
Highway system
IL 141 IL 143

Illinois Route 142 is a major arterial road in southeastern Illinois. It runs from near the town center of Equality at Calhoun Street, a local road, north to Illinois Route 37 and the northern terminus of Illinois Route 148 in Mount Vernon. This is a distance of 55.06 miles (88.61 km).[2]

Route description[edit]

Illinois 142 runs northwest from Equality. Before reaching Eldorado, it intersects Illinois Route 13 and U.S. Route 45. Illinois 142 largely parallels the North Fork of the Saline River before reaching McLeansboro and intersecting Illinois Route 14 and Illinois Route 242, a spur of Illinois 142. Route 142 then proceeds northwesterly following the alignment of the former US Route 460, crossing Interstate 64 without an interchange, before entering the Mount Vernon area. In Mt. Vernon Illinois 142 passes the sole remaining Continental Tire North America manufacturing plant, becoming Fisher Lane for a short distance before intersecting IL 37 . IL 142 crosses IL 37 where its name changes to Veterans Memorial Drive. It proceeds along Veterans Memorial Drive ending at the northern terminus of Illinois Route 148 (Waltonville Road).

Illinois 142 passes through these communities with a population greater than 500: Mount Vernon, Illinois, Dahlgren, McLeansboro, Eldorado, and Equality


SBI Route 142 ran from Effingham to McLeansboro along what is Illinois 37 today. It was changed in the mid-1930s to its current routing. In 1947, U.S. Route 460 was applied onto Illinois 142 from Mount Vernon to McLeansboro; Illinois 142 was then moved onto what was then Illinois Route 147, which had been Illinois Route 142A, or the highway north from McLeansboro to Wayne City.

This configuration lasted until 1974, when U.S. 460 was decommissioned and the current routing for Illinois 142 re-established from Mount Vernon to McLeansboro. The road from McLeansboro north to Wayne City was again renamed, to Illinois 242.[1]

Illinois Route 142 runs roughly parallels to and near the path of the historic Goshen Road in the counties it traverses.

Major Intersections[edit]

County Location mi[4] km Destinations Notes
Gallatin Equality 0.0 0.0 Calhoun St Southern terminus of IL 142
1.4 2.3 IL 13 – Harrisburg, Shawneetown
Saline Eldorado 7.6 12.2 US 45 – Harrisburg, Norris City
Hamilton McLeansboro 28.5 45.9 IL 14 (Randolph St) – Benton, Carmi Southbound IL 142 has a two-block overlap with IL 14
28.9 46.5 IL 242 north (Washington St) – Wayne City Southern terminus of IL 242
Jefferson Mt. Vernon 55.06 88.61 IL 148 south (Veterans Memorial Dr) / IL 37 (10th St) – Waltonville, Benton Northern terminus of IL 142 and IL 148
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Carlson, Rich. Illinois Highways Page: Routes 141 thru 160. Last updated April 15, 2005. Retrieved June 20, 2006.
  2. ^ a b Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08. 
  3. ^ Sarjeant, Charles. Illinois Highway Ends: Illinois 142. Last updated July 15, 2005. Retrieved June 20, 2006.
  4. ^ Google (March 4, 2017). "Overview Map of IL 142" (Map). Google Maps. Google. Retrieved March 4, 2017.