Interstate 40 near Dandridge, Tennessee, northeast of Knoxville,
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Interstate 26 between the Tri-Cities: Kingsport, Johnson City, and Bristol, Tennessee,
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Interstate 77 in Wytheville, Virginia. They stay joined for about 10 miles (16 km), and go in opposite directions (i.e., this is a wrong-way concurrency, where I-81 North overlaps I-77 South, and vice versa),
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Interstate 64 in Lexington, Virginia. They stay joined until Staunton, Virginia,
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Interstate 66 in Middletown, Virginia,
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Interstate 70 in Hagerstown, Maryland,
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Interstate 76 in Middlesex, Pennsylvania (near Carlisle, Pennsylvania),
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Interstate 83 in Harrisburg, Pennsylvania,
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Interstate 78 in Bordnersville, Pennsylvania (near Jonestown, Pennsylvania),
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Interstate 80 in Saint Johns, Pennsylvania (near Hazleton, Pennsylvania),
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Interstate 476 in Dupont, Pennsylvania (near Pittston, Pennsylvania),
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Interstate 84 and Interstate 380 in Dunmore, Pennsylvania (near Scranton, Pennsylvania) Throop Dunmore Interchange,
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Interstate 476 (again) in Clarks Summit, Pennsylvania,
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Interstate 88 and future Interstate 86 in Binghamton, New York,
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Interstate 690 in downtown Syracuse, New York,
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Interstate 90 in North Syracuse, New York,
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