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180:. The Interstate Highway System in Alaska comprises four highways that cover 1,082.22 miles (1,741.66 km). The longest of these is Interstate A-1 (A-1), at 408.23 miles (656.98 km) long, while the shortest route is A-3, at 148.12 miles (238.38 km) long. All Interstates in Alaska are unsigned and are not generally referred to by their highway numbers.
212:. Title 23 provides that "Highways on the Interstate System in Alaska and Puerto Rico shall be designed in accordance with such geometric and construction standards as are adequate for current and probable future traffic demands and the needs of the locality of the highway." Some portions of these highways are built to Interstate standards, though. The
519:
852:
894:
1040:
191:. The Interstate Highway System was expanded to Alaska in 1976, by the Federal-Aid Highway Act of 1976, which defined the system for Interstates in Alaska and Puerto Rico under
1020:
901:
859:
173:
1639:
183:
Interstates in Alaska follow the numbering system
Interstate A-n, where n represents the number of the Interstate. This follows the similar numbering systems for
538:
680:
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1070:
558:
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863:
1437:
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1007:
1002:
1702:
710:
1629:
1361:
1062:
1634:
972:"Alaska Department of Transportation and Public Facilities Routes by Description: CDS Route Numbers as of 28 October 2008"
1665:
1366:
1301:
938:
1644:
1072:
193:
1707:
479:
184:
1432:
1019:
971:
384:
330:
308:
188:
1476:
1241:
658:
632:
17:
430:
1660:
205:
154:
1624:
426:
380:
338:
326:
245:
1077:
1055:
625:"Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways"
113:
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141:
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565:
312:
229:
197:
8:
241:
526:
510:
240:, part of A-2, is constructed to freeway standards. In addition to these highways, the
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217:
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407:
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224:, which is part of A-1, is built to freeway standards from Anchorage to
204:
Most of the lengths of the
Interstates in Alaska are not constructed to
32:
Dwight D. Eisenhower
National System of Interstate and Defense Highways
1685:
are no longer a part of the system. Major
Interstates are highlighted.
176:(DOT&PF) is responsible for the maintenance and operations of the
530:
232:, A-4, is constructed to freeway standards in Wasilla. In and around
169:
1021:
Template:Attached KML/List of
Interstate Highways in Alaska
902:
Alaska
Department of Transportation & Public Facilities
860:
Alaska
Department of Transportation & Public Facilities
174:
Alaska
Department of Transportation & Public Facilities
969:
936:
248:, in Anchorage, are constructed to expressway standards.
67:
58:
49:
40:
965:
963:
961:
959:
939:"Dwight D. Eisenhower Interstate Routes Statewide"
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168:are all owned and maintained by the US state of
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678:
1030:Photos of Alaska Interstate Highway ends
892:
681:"Interstates in Hawaii: Are We Crazy???"
95:1,082.22 mi (1,741.66 km)
81:Interstates of Alaska highlighted in red
699:
679:Weingroff, Richard F. (April 7, 2011).
655:"Interstate Frequently Asked Questions"
611:
273:Northern or eastern terminus
270:Southern or western terminus
14:
1695:
672:
622:
1044:
568:, which comprises the entirety of A-4
442:
396:
350:
292:
900:(Report) (2008-2009-2010 ed.).
858:(Report) (2008-2009-2010 ed.).
850:
977:. U.S. Department of Transportation
944:. U.S. Department of Transportation
711:"Title 23, Chapter 1, Section §103"
623:Starks, Edward (January 27, 2022).
24:
529:, part of A-2, and Badger Road in
25:
1719:
993:
713:. U.S. Government Printing Office
652:
74:Shields for Interstates in Alaska
1071:
970:Federal Highway Administration.
937:Federal Highway Administration.
822:"Overview Map of Interstate A-2"
794:"Overview Map of Interstate A-4"
764:"Overview Map of Interstate A-1"
736:"Overview Map of Interstate A-3"
687:. Federal Highway Administration
592:
580:
557:
537:
518:
498:
437:
391:
345:
287:
66:
57:
48:
39:
208:but are small, rural, two-lane
118:Interstate A-n (A-n) (unsigned)
659:Federal Highway Administration
646:
633:Federal Highway Administration
629:FHWA Route Log and Finder List
228:. A very small portion of the
13:
1:
1703:Interstate Highways in Alaska
604:
166:Interstate Highways in Alaska
1037:at AARoads' Interstate Guide
895:Annual Traffic Volume Report
853:Annual Traffic Volume Report
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206:Interstate Highway standards
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573:
525:An interchange between the
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10:
1724:
851:Witt, Jennifer W. (2010).
491:
246:Minnesota Drive Expressway
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1708:Lists of roads in Alaska
1025:KML is not from Wikidata
893:Birkholz, Ethan (2010).
709:United States Congress.
244:, in Fairbanks, and the
198:§ 103(c)(1)(B)(ii)
599:U.S. roads portal
128:Alaska Route n (AK-n)
566:George Parks Highway
435:
389:
343:
285:
230:George Parks Highway
1079:Interstate Highways
257:
242:Johansen Expressway
178:Interstate Highways
1035:Alaska Interstates
527:Richardson Highway
385:Richardson Highway
331:Richardson Highway
256:
238:Richardson Highway
210:undivided highways
87:System information
1690:
1689:
911:on April 17, 2014
869:on March 30, 2014
587:Alaska portal
552:, is part of A-3.
548:, westbound near
513:, is part of A-1.
509:, eastbound near
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16:(Redirected from
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904:. Archived from
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862:. Archived from
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18:Interstate A-1
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507:Glenn Highway
501:
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480:Parks Highway
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327:Glenn Highway
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222:Glenn Highway
219:
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155:Scenic Byways
153:
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148:
147:
144:
143:
142:Alaska Routes
139:
138:
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127:
125:
121:
117:
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108:Highway names
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30:
27:
19:
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1415:
1408:
1300:
1205:
1001:
979:. Retrieved
946:. Retrieved
913:. Retrieved
906:the original
871:. Retrieved
864:the original
829:. Retrieved
825:
801:. Retrieved
797:
773:. Retrieved
767:
743:. Retrieved
739:
715:. Retrieved
689:. Retrieved
684:
674:
662:. Retrieved
648:
636:. Retrieved
628:
313:Alcan Border
267:Length (km)
264:Length (mi)
203:
182:
165:
163:
149:
140:
133:System links
26:
826:Google Maps
798:Google Maps
769:Google Maps
740:Google Maps
638:January 24,
471:01976-01-01
418:01976-01-01
372:01976-01-01
335:Tok Cut-Off
318:01976-01-01
189:Puerto Rico
114:Interstates
1697:Categories
1681:Routes in
605:References
511:Glennallen
150:Interstate
1661:Standards
1630:Auxiliary
873:March 15,
691:March 15,
531:Fairbanks
466:Fairbanks
413:Anchorage
367:Fairbanks
304:Anchorage
234:Fairbanks
218:Anchorage
194:23 U.S.C.
1640:Business
1635:Suffixed
1572:Unsigned
1076:Primary
1003:KML file
574:See also
476:current
423:current
408:Soldotna
377:current
323:current
279:Removed
1683:italics
1625:Primary
981:May 31,
948:May 31,
915:May 31,
831:May 31,
824:(Map).
803:May 31,
796:(Map).
775:May 31,
766:(Map).
745:May 31,
738:(Map).
717:May 31,
664:May 31,
653:Staff.
492:Gallery
454:Gateway
450:520.93
404:238.38
358:325.38
300:656.98
276:Formed
261:Number
226:Wasilla
1671:Tolled
1645:Future
1087:Signed
460:Palmer
447:323.69
401:148.12
355:202.18
297:408.23
282:Notes
252:Routes
236:, the
220:. The
196:
185:Hawaii
172:. The
170:Alaska
100:Formed
92:Length
1654:Other
1618:Lists
1609:PRI-3
1604:PRI-2
1599:PRI-1
1466:CT–MA
1460:PA–NY
1438:PA–MA
1433:OR–UT
1417:CT–RI
1410:PA–NY
1404:WA–OR
1367:OH–NJ
1362:CO–NE
1308:VA–DC
1302:KS–KY
975:(PDF)
942:(PDF)
909:(PDF)
898:(PDF)
867:(PDF)
856:(PDF)
550:Homer
458:near
124:State
1666:Gaps
1012:help
1008:edit
983:2012
950:2012
917:2012
875:2012
833:2012
805:2012
777:2012
747:2012
719:2012
693:2011
666:2012
640:2023
564:The
544:The
505:The
473:1976
420:1976
374:1976
320:1976
187:and
164:The
103:1976
1594:A-4
1589:A-3
1584:A-2
1579:A-1
1563:H-3
1558:H-2
1553:H-1
1488:88
1473:87
1451:86
1429:84
1400:82
1358:76
1297:66
443:A-4
397:A-3
362:Tok
351:A-2
311:in
293:A-1
1699::
1548:99
1543:97
1538:96
1532:95
1526:94
1521:93
1516:91
1510:90
1504:89
1497:NY
1492:IL
1482:NY
1477:NC
1455:ID
1446:85
1425:83
1396:81
1390:80
1384:79
1379:78
1374:77
1353:75
1347:74
1342:73
1337:72
1332:71
1326:70
1320:69
1315:68
1292:65
1286:64
1281:59
1276:57
1270:55
1264:49
1258:45
1252:44
1247:43
1242:42
1237:41
1231:40
1225:39
1220:37
1214:35
1207:31
1200:30
1194:29
1189:27
1184:26
1178:25
1172:24
1167:22
1161:20
1155:19
1150:17
1145:16
1139:15
1133:14
1128:12
1123:11
1117:10
1010:•
958:^
925:^
883:^
841:^
813:^
785:^
755:^
727:^
701:^
683:.
657:.
631:.
627:.
613:^
456:,
429:,
383:,
337:,
333:,
329:,
201:.
1111:8
1105:5
1099:4
1094:2
1064:e
1057:t
1050:v
1014:)
1006:(
985:.
952:.
919:.
877:.
835:.
807:.
779:.
749:.
721:.
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668:.
642:.
20:)
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