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Interstate 86 (I-86) is an Interstate Highway that extends for through northwestern Pennsylvania and southern New York in the United States. The highway currently exists in two segments: the longer of the two begins at an interchange with I-90 east of Erie, Pennsylvania, and ends at the Chemung-Tioga County line, while the second extends from I-81 east of Binghamton to NY 79 in Windsor. When projects to upgrade the existing NY 17 to Interstate Highway standards are completed, I-86 will extend from I-90 near Erie to the New York State Thruway (I-87) in Woodbury. The current and future alignment of I-86 is known as the Southern Tier Expressway west of I-81 in Binghamton and the Quickway east of I-81. I-86 currently travels in Pennsylvania and in New York. Except for a section of about that dips into Pennsylvania near the New York village of Waverly and the Pennsylvania borough of South Waverly, the rest of I-86 will be in New York. The section of NY 17 through South Waverly is maintained by the New York State Department of Transportation (NYSDOT), however. The Southern Tier Expressway section of I-86 and NY 17 comprises Corridor T of the Appalachian Development Highway System. I-86 connects to U.S. Route 219 (US 219) in Salamanca, I-390 near Avoca and I-99 / US 15 just west of Corning. Most of the Quickway and the Southern Tier Expressway was built in stages from the 1950s to the 1980s. The I-86 designation was officially assigned on December 3, 1999, to the entirety of since-decommissioned northwestern part of Pennsylvania Route 17 (PA 17) and to the westernmost part of NY 17. It has been extended eastward as more sections of the existing NY 17 freeway have been upgraded to Interstate Highway standards, first to NY 14 in Horseheads in 2004, to NY 352 in Elmira in 2008, and its current terminus at the Chemung-Tioga County line in 2013. The segment of NY 17 between I-81 and NY 79 was designated as part of I-86 in 2006. ==Route description== |- |PA |〔 |- |NY |〔 |- |Total | |} 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 86 (Pennsylvania–New York)」の詳細全文を読む スポンサード リンク
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