Illinois Route 128 is a north–south state road in east-central Illinois

Illinois

Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

. It runs from Interstate 70

Interstate 70

Interstate 70 is an Interstate Highway in the United States that runs from Interstate 15 near Cove Fort, Utah, to a Park and Ride near Baltimore, Maryland. It was the first Interstate Highway project in the United States. I-70 approximately traces the path of U.S. Route 40 east of the Rocky...

 in Altamont

Altamont, Illinois

Altamont is a city in Effingham County, Illinois, United States. The population was 2,283 at the 2000 census.-Geography:Altamont is located at . According to the United States Census Bureau, the city has a total area of , all of it land.-Demographics:As of the census of 2000, there were 2,283...

 to Illinois Route 121

Illinois Route 121

Illinois Route 121 is a major state road in central Illinois. Although it runs from northwest to southeast, it is marked as a north–south road. It runs from Illinois Route 130 in Greenup to Interstate 55 in Lincoln at the intersection of I-55 and Illinois Route 10...

 in Dalton City

Dalton City, Illinois

Dalton City is a village in Moultrie County, Illinois, United States. It is in the center of the state near the Macon County line, located along Route 121 at its intersection with Route 128 and between the larger villages of Bethany and Mount Zion...

. This is a distance of 55.57 miles (89.43 km).

Route description

Illinois 128 is a two-lane, rural surface road for its entire length. Immediately north of Interstate 70, it overlaps U.S. Route 40

U.S. Route 40

U.S. Route 40 is an east–west United States highway. As with most routes whose numbers end in a zero, U.S. 40 once traversed the entire United States. It is one of the original 1920s U.S. Highways, and its first termini were San Francisco, California, and Atlantic City, New Jersey...

 for 3 miles (5 km). It is also concurrent with Illinois Route 16

Illinois Route 16

Illinois Route 16 is an arterial east–west highway in central Illinois. Its western terminus is at the Joe Page Bridge over the Illinois River in Hardin, while its eastern terminus is at Paris at Illinois Route 1 and U.S. Route 150, with Illinois Route 133. This is a distance of .- Route...

 near Shelbyville.

Illinois 128 may or may not run through Moultrie County, depending on its exact routing, as the route appears to run along portions of the Shelby/Moultrie and Macon/Moultrie county lines.

History

SBI Route 128 originally ran from U.S. Route 40 (originally Illinois Route 11) to Illinois 16 west of Shelbyville. In 1937, it replaced Illinois Route 169

Illinois Route 169

Illinois Route 169 is an east–west state road in far southern Illinois. It runs from Illinois Route 37 north of Grand Chain east to U.S. Route 45 east of Boaz. This is a distance of .- Route description :...

north of Shelbyville to Dalton City. Finally, as Interstate 70 was being built in the 1950s and 1960s, it was extended along U.S. 40 to Altamont.