Interstate 84 may refer to:
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Interstate 84 (Oregon–Utah)
Interstate 84 (I-84) is an Interstate Highway System, Interstate Highway in the northwestern United States. The highway runs almost 770 miles (1239 km) from Portland, Oregon, to a junction with Interstate 80 in Utah, I-80 near Echo, Utah. The ...
, passing through Idaho, formerly known as Interstate 80N
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Interstate 84 (Pennsylvania–Massachusetts), passing through New York and Connecticut
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