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Interstate 87 (abbreviated '''I-87''') is a 333.49 Mile (536.70 Km ) Intrastate Interstate Highway located entirely within the state of New York . Its southern end is at the The Bronx approach to the Triboro Bridge in New York City ; its northern end is in Champlain, New York , at the Canadian border, where it connects with Autoroute 15 . ROUTE DESCRIPTION Major Deegan Expressway See Also: Major Deegan Expressway Interstate 87 is defined as part of Interstate Route Connector 512 and part of Interstate Route 502 in New York Highway Law ยง 340-a. Search of official New York State Legislature site The 8.4 mile section of I-87 in New York City is known as the Major Deegan Expressway . This highway was opened in 1956 before the Interstate highway system was created. The expressway was named for Major William Francis Deegan , of the US Army Corps Of Engineers , who was responsible for the construction of many of the army bases in and around New York during World War I . New York State Thruway See Also: New York State Thruway The section of highway between the New York City line and the junction with Interstate 90 at Albany is part of the New York State Thruway , for which it was originally constructed in the middle 1950s . The section received its designation as Interstate 87 in 1958 . The Tappan Zee Bridge was created as an extension of the original Thruway route to Suffern, New York . It crosses the Hudson River enabling the route to New York City . I-287 connects with its parent in a 19-mile (31 km) long concurrency near the southern end of the highway. It is a partial beltway around New York City. West of the concurrency, it loops around New York to meet the New Jersey Turnpike in Middlesex County, New Jersey . East of the concurrency, I-287 continues as the Cross Westchester Expressway to end at I-95 (the New England Thruway ) in Rye, New York , near the Connecticut border. Note that I-287 leaves New York state, while its parent does not, making I-287 the only interstate that goes through more states than it's parent. intersection, while its western terminus is at a Roundabout (where it connects to Interstate 87). Adirondack Northway North of Albany , Interstate 87 is known as the Adirondack Northway (or simply the ''Northway'') and continues all the way to the Canada-US Border . This controversial segment was built in 1967 to provide a direct route between New York City and Montreal for Expo 67 . The same year, '' Parade Magazine '' designated the Northway as ''America's Most Scenic Highway''. A long stretch of the Northway through the Adirondack Park is a "dark zone" for Cell Phone service. A number of recent tragedies have occurred when drivers crashed off the road and could not summon help, prompting calls from local officials to add new wireless towers to address the problem.http://www.forbes.com/feeds/ap/2007/02/22/ap3454717.html The southern portion of the Northway through Colonie and Saratoga County is now a heavily travelled commuter route. Since the highway's construction, Saratoga County has become the fastest growing area of the Capital District , and indeed all of upstate New York.http://timesunion.com/AspStories/storyprint.asp?StoryID=291354 The Northway's southern terminus is at U.S. Route 20 in Guilderland , and the 0.9-mile section of the Northway that is not signed as Interstate 87 (but runs parallel to, and in proximity to, the Thruway /I-87) is maintained by NYSDOT as Reference Route 910F , also known as Fuller Road Alternate. Plans by the Thruway Authority to construct EZPass Only lanes to connect directly to the Thruway, to ease congestion at Exit 24, have been talked about for years. The Delaware And Hudson Railroad 's Troy and Schenectady branch would have been bisected by the construction of I-87. Since they still had customers on that branch, the railroad crossed the Interstate at grade. This lasted four years, until 1963 .http://railroad.net/forums/viewtopic.php?p=385895#385895 HISTORY I-487 (Hudson River Expressway) was planned to be the I-87 of the east-side of the Hudson. It was planned to run from where I-87 crosses the Hudson at the Tappan Zee Bridge to I-84 in the City Of Beacon, NY . It was on the books as a project from the 1930s until the later 1970s. The Croton Expressway along US 9 between Croton-on-Hudson and Peekskill is the only section ever built. I-687 was planned as a bypass around Albany, New York , but it was never built. The interchange that connects Corporate Woods Boulevard to I-90 was intended originally for I-687. Also, there is still no exit 3 on I-87. This was also intended for 687. EXIT LIST Major Deegan :See Major Deegan Expressway . Thruway :See the Thruway Exit List , for the first 148.15 miles of mainline (Exits 1-24). , toward the Tappan Zee Bridge]] I-90 concurrency There is a very short section (0.54 miles long) overlapped with "Free" I-90, between the Thruway and the Northway. Mileposts refer to offramp locations. Northway
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