According to the Federal Highway Administration Interstate Highway Route Log and Finder List, Alaska has four Interstate highways that creates a 1,082.22-mile system in the northernmost state. Even though these routes are designated as Interstate highways, they are generally not constructed to Interstate standards and are signed as Alaska State Routes.
||Interstate A-3 - Anchorage
||Canadian Border - Yukon Territory
||Interstate A-1 - Tok Junction
||Interstate A-4 - Fairbanks
||Interstate A-1 - Anchorage
||Interstate A-1 - Palmer
||Interstate A-2 - Fairbanks
On December 31, 1981 the Federal Highway Administration approved the addition of the four Alaska Interstates between the following locations:
AASHTO then approved the numbering of the Alaska Interstates on June 28, 1982.1
Page Updated July 8, 2015.