U.S. Route 50 in Illinois
In the U.S. state of Illinois, U.S. Route 50 is an east–west highway across the southern portion of the state. It runs from the Jefferson Barracks Bridge over the Mississippi River to Missouri east to the Red Skelton Memorial Bridge over the Wabash River to Indiana. This is a distance of 165.79 miles (266.81 km).
U.S. Route 50
US 50 highlighted in red
|Maintained by IDOT|
|Length||165.79 mi (266.81 km)|
|Counties||Monroe, St. Clair, Clinton, Marion, Clay, Richland, Lawrence|
U.S. 50 runs east–west across the southern portion of the state, between Interstate 70 to the north and Interstate 64 to the south. Along many portions of U.S. 50, the road has been moved onto either a bypass or an expressway.
Much of U.S. Route 50 in Illinois, especially the section between Carlyle, Illinois and Vincennes, lies atop or adjacent to the trail taken by George Rogers Clark and his 170 volunteers in the forlorn-hope march on Vincennes in February 1779.
Up until 1935, Illinois Route 12 followed roughly along the old alignment of US 50 from St. Louis to Vincennes, IN. By 1935, IL 12 was decommissioned.
As of 2011, much of U.S. 50 is a two-lane highway, but portions around Lawrenceville, IL and Vincennes, IN are configured as a four-lane, limited access bypass, built to interstate standards in the 1960s. Another modern bypass portion between O'Fallon, IL and IL-127 shows evidence of a four-lane right of way as each bridge is paralleled by a second that remains unused and the graded road bed for additional lanes is visible.
|Monroe||||2.9||4.7||Southern end of IL 3 concurrency|
|St. Clair||||7.2||11.6||Northern end of IL 3 concurrency|
|East St. Louis||13.3||21.4|
|16.6||26.7||Northern end of I–255 concurrency; western end of I–64 concurrency|
|O'Fallon||28.1||45.2||Eastern end of I–64 concurrency|
|Lebanon||32.9||52.9||Southern end of IL 4 concurrency|
|33.5||53.9||Northern end of IL 4 concurrency|
|Carlyle||57.2||92.1||Northern end of IL 127 concurrency|
|58.3||93.8||Southern end of IL 127 concurrency|
|Marion||Sandoval||72.4||116.5||Southern end of US 51 concurrency|
|||72.6||116.8||Northern end of US 51 concurrency|
|Clay||Flora||106.7||171.7||Western end of US 45 concurrency|
|110.6||178.0||Eastern end of US 45 concurrency|
|Richland||||120.9||194.6||Western terminus of IL 250|
|Olney||129.6||208.6||Western end of IL 250 concurrency|
|Lawrence||||142.2||228.8||Eastern end of IL 250 concurrency|
|Lawrenceville||151.0||243.0||Western terminus of US 50 BUS|
|154.7||249.0||Eastern terminus of US 50 BUS|
|||159.5||256.7||Southern terminus of IL 33|
|||165.79||266.81||Indiana state line|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- Illinois Technology Transfer Center (2007). "T2 GIS Data". Retrieved 2007-11-08.
- Illinois Secretary of State; Rand McNally (1934). Official Road Map Illinois (Map). [c. 1:950,000 and c. 1:1,110,000]. Springfield: Illinois Secretary of State. OCLC 183709045 – via Illinois Digital Archives.
- Illinois Secretary of State; H.M. Gousha (1935). Official Road Map Illinois (Map). [c. 1:950,000 and c. 1:1,110,000]. Springfield: Illinois Secretary of State – via Illinois Digital Archives.
- Google (March 19, 2017). "Overview Map of US 50" (Map). Google Maps. Google. Retrieved March 19, 2017.