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There are four officially designated Interstate Highways in Alaska. Though the routes do not directly connect to the rest of the United States Interstate Highway system, they receive funding in a similar fashion to the Interstates in the conterminous US.
Unlike the Interstate routes in Hawaii, they are unsigned as such, and the designated routes of the four routes, officially Interstates A-1, A-2, A-3, and A-4, run along various combinations of Alaska state routes.
Length
| Route | miles | km | terminus
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| A-1 | 408.23 | 656.98 | Anchorage, A-3 to Yukon, Canada
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| A-2 | 202.18 | 325.38 | Tok Junction, A-1 to Fairbanks, A4
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| A-3 | 148.12 | 238.38 | Anchorage, A-1 to Soldotna
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| A-4 | 323.69 | 520.93 | Palmer, A-1 to Fairbanks A-2
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External link
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