Interstate 680 has a southern terminus at the turnpike that is of what length?
Interstate 680 (Ohio) Interstate 680 (I-680) in the State of Ohio is the primary Interstate Highway passing through Youngstown, Ohio. Its northern terminus is at Interstate 80 and its southern terminus is at Interstate 76, the Ohio Turnpike.
U.S. Route 14 U.S. Route 14 (abbreviated U.S. 14 or US 14), an east–west route, is one of the original United States highways of 1926. It currently has a length of 1,398 miles (2,250 km), but it had a peak length of 1,429 miles (2,300 km). For much of its length, it runs roughly parallel to Interstate 90.