Interstate Highways in Alaska

There are four officially designated Interstate Highways in Alaska, even though the routes do not connect directly to any highways in the contiguous United States, except either by the Alaska Marine Highway System ferries or via Canadian highways.

These routes are numbered A-1 through A-4 and receive similar funding to interstates in other states; however they are not signed with interstate highway shields.

They follow various combinations of Alaska Routes, which generally fail to meet Interstate Highway standards, being for the most part two-lane rural highways without controlled access. The federal government established the classification of these roads as Interstate Highways, primarily for funding purposes. Limited-access freeways exist only within and near Anchorage, Fairbanks, and Wasilla.

Contents

Routes

Route Length
mi[1]		 Length
km		 From To Highway names
Interstate A1  408.23 656.98 Anchorage Canadian border Glenn Highway, Richardson Highway, Tok Cut-Off, Alaska Highway
Interstate A2  202.18 325.38 Tok Fairbanks Alaska Highway, Richardson Highway
Interstate A3  148.12 238.38 Anchorage Soldotna Seward Highway, Sterling Highway
Interstate A4  323.69 520.93 Palmer Fairbanks Parks Highway

See also

References

  1. ^ "Table 1 - Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of October 31, 2002". The Dwight D. Eisenhower National System of Interstate and Defense Highways Route Log and Finder List. U.S. Department of Transportation Federal Highway Administration. November 2002. http://www.fhwa.dot.gov/reports/routefinder/table1.htm. Retrieved 2008-09-27. 

External links

Main Interstate Highways (major interstates highlighted)
4 5 8 10 12 15 16 17 19 20 22 24 25 26 27 29 30
35 37 39 40 43 44 45 49 55 57 59 64 65 66 68 69
70 71 72 73 74 75 76 (W) 76 (E) 77 78 79 80 81 82
83 84 (W) 84 (E) 85 86 (W) 86 (E) 87 88 (W) 88 (E) 89 90
91 93 94 95 96 97 99 H-1 H-2 H-3
Unsigned  A-1 A-2 A-3 A-4 PRI-1 PRI-2 PRI-3
Lists  Primary  Main - Intrastate - Suffixed - Temporary - Future - Gaps
Auxiliary  Main - Future - Unsigned
Other  Standards - Business - Bypassed - Tolled