Interstate 87 is an Interstate Highway in the state of New York in the United States. It goes from New York City north to Champlain at the Canada border where it connects to Autoroute 15. The route is 333.49 miles (536.70 km) long.[1] The southern half of the interstate (between NYC and Albany) is part of the New York State Thruway (tollway). North of Albany, the highway is called the Adirondack Northway. It is also part of I-287 in Westchester County, from exits 8-15. Its short length through the NYC borough of the Bronx is called the Major Deegan Expressway.