Interstate Highways in Alaska

From Wikipedia, the free encyclopedia.

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. The four routes, officially Interstates A-1, A-2, A-3, and A-4, run along various combinations of Alaska state routes, which are typically known by name rather than number. For example, A-3 includes stretches of the Seward and Sterling Highways.

Only short portions of the roads are built to freeway standards.

Length

Route	Length		Termini
A-1	408.23 mi	656.98 km	Anchorage, A-3 to Yukon, Canada
A-2	202.18 mi	325.38 km	Tok Junction, A-1 to Fairbanks, A4
A-3	148.12 mi	238.38 km	Anchorage, A-1 to Soldotna
A-4	323.69 mi	520.93 km	Palmer, A-1 to Fairbanks A-2

edit Primary Interstate Highways
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	238	H-1	H-2	H-3
Unsigned Interstate Highways
A-1	A-2	A-3	A-4	PRI-1	PRI-2	PRI-3
Lists Two-digit Interstates - Three-digit Interstates Gaps in Interstates - Intrastate Interstates Interstate standards - Proposed Interstates

External links

• Ends of the Alaskan's interstate highways