U.S. Route 133 is a north-south highway located in the state of Illinois. It spans approximately 30 miles, connecting the towns of Champaign and Danville. The route primarily serves local traffic and provides access to various communities along its path. Established in the mid-20th century, U.S. Route 133 is part of the larger network of U.S. highways. It features a mix of rural and urban landscapes, making it an important corridor for residents and visitors in the region. The highway is maintained by the Illinois Department of Transportation.