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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Table HM-49 - Highway Statistics 2018

Highway Statistics 2018


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Strategic Highway Network (STRAHNET) Length - 2018 (1)
    Miles by Interstate and Non-Interstate

August 30, 2019
Table HM-49

STATE RURAL URBAN TOTAL
INTERSTATE NON-INTERSTATE TOTAL INTERSTATE NON-INTERSTATE TOTAL
Alabama 571 626 1,196 433 309 743 1,939
Alaska 1,002 291 1,293 79 5 84 1,377
Arizona 916 264 1,180 253 35 288 1,468
Arkansas 439 301 740 310 59 369 1,110
California 1,186 - 1,186 1,270 - 1,270 2,456
Colorado 648 28 676 304 30 334 1,010
Connecticut 29 - 29 318 2 320 349
Delaware - 13 13 41 32 73 86
Dist. of Columbia - - - 12 1 12 12
Florida 717 229 947 778 325 1,103 2,049
Georgia 537 568 1,106 710 264 974 2,080
Hawaii - 11 11 55 79 134 145
Idaho 523 113 636 93 17 110 745
Illinois 1,243 - 1,243 942 12 953 2,197
Indiana 784 58 843 503 4 507 1,349
Iowa 611 3 615 178 - 178 792
Kansas 639 3 643 234 15 250 892
Kentucky 711 13 724 232 15 248 972
Louisiana 532 281 814 410 69 479 1,293
Maine 279 - 279 87 2 89 368
Maryland 142 91 233 338 125 463 696
Massachusetts 64 - 64 508 24 532 597
Michigan 562 35 597 676 36 712 1,309
Minnesota 588 166 754 325 37 363 1,116
Mississippi 578 291 869 253 70 323 1,192
Missouri 842 328 1,170 538 54 592 1,762
Montana 1,094 208 1,302 98 15 113 1,415
Nebraska 415 40 455 69 23 92 547
Nevada 457 1,262 1,719 163 111 274 1,992
New Hampshire 142 - 142 83 - 83 225
New Jersey 45 7 52 387 70 457 509
New Mexico 843 410 1,253 156 39 195 1,448
New York 804 - 804 939 2 940 1,744
North Carolina 561 622 1,183 745 356 1,102 2,285
North Dakota 510 123 633 61 17 78 711
Ohio 643 132 775 931 50 981 1,756
Oklahoma 646 177 823 286 44 330 1,153
Oregon 495 500 995 234 94 328 1,323
Pennsylvania 1,074 116 1,190 788 70 857 2,048
Rhode Island 18 - 18 52 14 66 84
South Carolina 546 - 546 304 - 304 851
South Dakota 591 - 591 88 - 88 679
Tennessee 644 48 692 557 64 621 1,313
Texas 2,001 2,243 4,244 1,459 549 2,007 6,251
Utah 684 258 942 253 41 294 1,236
Vermont 256 - 256 64 - 64 320
Virginia 598 382 980 521 170 691 1,671
Washington 429 122 551 335 90 424 976
West Virginia 319 46 365 235 12 247 613
Wisconsin 512 108 620 366 7 374 994
Wyoming 807 52 859 106 0 106 965
U.S. Total 29,280 10,569 39,849 19,160 3,459 22,619 62,468
Puerto Rico 44 - 44 257 - 257 301
Grand Total 29,324 10,569 39,893 19,417 3,459 22,876 62,769

(1) The STRAHNET includes highways which are important to the United States strategic defense. They provide defense access, continuity, and emergency capabilities for the movement of personnel, materials, and equipment.

 

Page last modified on December 23, 2019
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