Interstate 86 may refer to any of three unconnected Interstate Highways in the United States:
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Interstate 86 (Pennsylvania–New York)
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Interstate 86 (Idaho)
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Interstate 84 (Pennsylvania–Massachusetts)
Interstate 84 (I-84) is an Interstate Highway System, Interstate Highway in the Northeastern United States that extends almost 233 miles (375 km) from Dunmore, Pennsylvania, near Scranton, Pennsylvania, Scranton at an interchange with Inte ...
, section east of East Hartford, Connecticut was formerly designated as Interstate 86
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