High Quality Content by WIKIPEDIA articles! In the U.S. state of Maine, Interstate 95 (I-95) is a 303-mile (488 km) long highway running from the New Hampshire border near Kittery, to the Canadian border near Houlton. It is the only two-digit Interstate Highway in Maine. In 2004, the highway`s route between Portland and Gardiner was changed so that it encompasses the entire Maine Turnpike, which runs from Kittery to Augusta.