in the early days before the town's incorporation, westerville was connected to columbus by a plank road with a toll of ten cents. today, westerville borders interstate 71 and interstate 270 (the columbus outerbelt), expressways that connect it with columbus and other suburbs. via the interstates, central westerville is from downtown columbus and from john glenn columbus international airport, central ohio's primary terminal for air passengers. state route 3, the "3-c highway" which connects cleveland, columbus, and cincinnati, is the chief north-south thoroughfare of the old town center, known as uptown westerville, through which it is called state street.