Interstate 24 (I-24) — Highway linking southern Illinois to East Ridge, Tennessee

Route and characteristics

The highway is built to limited‑access freeway standards for virtually its entire length, combining multi‑lane urban sections and long rural stretches. Typical features include grade-separated interchanges, wide shoulders, and periodic rest/service areas. The corridor passes through agricultural regions, river valleys and several metropolitan areas where traffic density and interchange complexity increase.

Major connections and cities

• Western terminus: Goreville, Illinois
• Serves portions of western Kentucky en route
• Provides access to the greater Chattanooga area via East Ridge
• Interchanges with several principal interstates and U.S. routes along the way

History and development

I-24 was conceived as part of the mid‑20th century Interstate program that reshaped long‑distance road travel in the United States. Construction proceeded in segments over multiple years, with upgrades and occasional realignments to improve capacity and safety. For planning details and historical maps consult federal and state highway resources such as the official corridor summaries and route logs (federal overview).

Uses and importance

The route serves mixed functions: a regional artery for commuters near urban centers, a freight corridor linking Midwestern production areas with markets in the Southeast, and an access route for tourism and local economies. Its role in freight movement is particularly important because it connects interior regions with downstream transportation networks. For current traffic information and route maps see the state and regional transportation pages (route information).

Notable facts

Although numbered as an east–west interstate (even number), I-24's diagonal alignment illustrates how numbering conventions accommodate real-world geography. The highway includes a variety of engineering features to cross rivers and rugged terrain and remains a key corridor for both intrastate travel and longer regional trips in the central and southeastern United States.