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|direction_b=North |terminus_b= at the Canadian border in Champlain |previous_type=NY 1948 |previous_route=86A |next_type=NY |next_route=87 }} Interstate 87 (I-87) is a Interstate Highway located entirely within the U.S. state of New York, and is part of the main highway between New York City and Montreal. The highway begins in the Bronx borough of New York City, just north of the Triborough Bridge. From there, the route runs northward through the Hudson Valley, the Capital District, and the easternmost part of the North Country to the Canadian border in the Town of Champlain. At its north end, I-87 continues into Quebec as Autoroute 15 (A-15). I-87 connects with several regionally important roads: I-95 in New York City, New York State Route 17 (NY 17; future I-86) near Harriman, I-84 near Newburgh, and I-90 in Albany. The route is the longest intrastate Interstate Highway in the Interstate Highway System. I-87 was assigned in 1957 as part of the establishment of the Interstate Highway System. The portion of I-87 south of Albany follows freeways that predate the Interstate Highway designation, namely, the Major Deegan Expressway in New York City and the New York State Thruway from the New York City line to Albany. North of Albany, I-87 follows the Adirondack Northway, a highway built in stages between 1957 and 1967. Early proposals for I-87 called for the route to take a more easterly course through the Hudson Valley between New York City and Newburgh. These plans were scrapped in 1970 when I-87 was realigned onto the Thruway between Westchester County and Newburgh. ==Route description== I-87 is part of a major strategic corridor between New York City, the largest metropolitan area in the U.S., and Montreal, the second largest in Canada. The New York State Department of Transportation (NYSDOT) considers the route important for commerce, as it connects with numerous highways in the region and serves approximately 80 million people along the Mid-Atlantic States, New England, and Quebec. Motorists can connect to multiple highways on 87 to travel further south along I-95 through the mid-Atlantic states, or through numerous other highways to travel further east into New England. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Interstate 87」の詳細全文を読む スポンサード リンク
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