U.S. Route 31E (US 31E) is the eastern parallel route for U.S. Highway 31 from Nashville, Tennessee, to Louisville, Kentucky. US 31E begins as the Ellington
U.S. Route 21 or U.S. Highway 21 (US 21) is a north–south United States Numbered Highway, spanning 393 miles (632 km) from Hunting Island State Park, South
U.S. Route 68 (US 68) is a United States highway that runs for 560 miles (900 km) from northwest Ohio to Western Kentucky. The highway's western terminus
terminus is at Manitowoc, Wisconsin. The route, from south to north follows a northeasterly path through the two states. US 151 is an important corridor which