Interstate 70 (I-70) in the US state of Indiana travels east–west across the state passing through the capital of Indianapolis. I-70 crosses from Illinois into Indiana near Terre Haute and departs into Ohio at Richmond. It covers 156.6 miles (252.0 km) in Indiana, paralleling U.S. Highway 40 (US 40), the old National Road (except for the first approximately 11 miles (18 km) in which the two routes overlap).