Interstate 74

Interstate 74 is a major east–west highway in the Midwestern United States, primarily within the state of Illinois. It connects the Quad Cities metropolitan area on the Mississippi River to the Champaign–Urbana metropolitan area in central Illinois. The route serves as a vital transportation corridor for commerce and travel, linking several significant cities and intersecting with other key Interstate Highway System routes.

Route description

From its western terminus at the Mississippi River in Davenport, the highway crosses into Illinois via the I-74 Bridge and proceeds through the Quad Cities region, including Moline and East Moline. The route travels southeast across the agricultural Illinois River valley, passing near Galesburg and Peoria, where it intersects with Interstate 474 and Interstate 155. Continuing east, it serves the twin cities of Bloomington and Normal, home to Illinois State University and a major campus of State Farm. The highway then proceeds through McLean County and Ford County before reaching its eastern terminus at a junction with Interstate 57 in Champaign.

History

The corridor was originally part of the early Illinois Traction System interurban railway and later U.S. Route 150. Planning for the route began in the late 1950s following the passage of the Federal-Aid Highway Act of 1956. The first segment to open was a bypass around Peoria in 1960, with construction progressing in phases throughout the 1960s and 1970s. A significant project was the completion of the twin suspension bridge structures over the Mississippi River, replacing the older Government Bridge. The final segment, connecting Fisher to Champaign, was opened to traffic in 1992, marking the highway's completion as designated.

Major intersections

The western terminus is at the Iowa–Illinois state line on the Mississippi River, connecting to Interstate 80 in Davenport. East of the Quad Cities, it junctions with U.S. Route 150 near Galesburg. In Peoria, it has a major interchange with Interstate 474 and Illinois Route 6, and meets the northern terminus of Interstate 155. Near Bloomington, it intersects with Interstate 55 and U.S. Route 51. Further east, it junctions with U.S. Route 45 at Oakwood. Its eastern terminus is a major interchange with Interstate 57 on the southwest side of Champaign, near the University of Illinois Urbana-Champaign.

Auxiliary routes

The primary auxiliary route is Interstate 474, a beltway that forms a southern bypass around Peoria. Another related route is Interstate 155, which provides a spur south from Interstate 74 near Morton to Lincoln and connects to Interstate 55. While not a signed auxiliary, the I-74 Bridge over the Mississippi River is a critical component, maintained in cooperation with the Iowa Department of Transportation.

Category:Interstate Highways in Illinois Category:Transportation in the Quad Cities Category:1958 establishments in Illinois