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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Table HM-20M - Highway Statistics 2018

Highway Statistics Series

Highway Statistics 2018


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Public Road Length - 2018 (1)
    Kilometers By Functional System

August 30, 2019

Table HM-20M
STATE RURAL URBAN TOTAL
INTERSTATE OTHER FREEWAYS AND EXPRESSWAYS OTHER PRINCIPAL ARTERIAL MINOR ARTERIAL MAJOR COLLECTOR MINOR COLLECTOR LOCAL TOTAL INTERSTATE OTHER FREEWAYS AND EXPRESSWAYS OTHER PRINCIPAL ARTERIAL MINOR ARTERIAL MAJOR COLLECTOR MINOR COLLECTOR LOCAL TOTAL
Alabama 918 - 3,265 6,414 19,724 9,882 75,546 115,750 697 47 2,093 3,820 5,829 301 33,947 46,734 162,483
Alaska 1,612 - 1,286 693 2,206 2,302 14,005 22,105 127 - 225 323 405 380 3,875 5,334 27,439
Arizona 1,475 28 1,949 2,062 6,772 3,042 49,690 65,018 407 346 1,366 4,234 3,110 355 32,638 42,457 107,475
Arkansas 706 116 3,021 4,935 19,011 10,860 98,736 137,385 499 164 1,014 2,945 3,491 387 19,269 27,769 165,154
California 1,908 595 5,253 9,881 19,364 12,048 65,657 114,705 2,044 2,494 10,776 17,639 20,299 592 114,035 167,878 282,584
Colorado 1,043 45 4,134 5,574 8,771 14,224 75,901 109,693 489 522 1,720 2,904 2,987 107 24,770 33,499 143,191
Connecticut 46 57 196 350 1,379 674 6,455 9,159 511 392 1,146 2,691 2,926 505 17,361 25,532 34,691
Delaware - 28 161 144 628 417 3,185 4,562 65 62 346 359 667 114 4,222 5,836 10,398
Dist. of Columbia - - - - - - - - 19 25 172 264 250 - 1,707 2,436 2,436
Florida 1,154 283 4,212 3,528 6,474 5,158 38,061 58,870 1,252 924 6,371 6,797 10,392 3,008 110,495 139,239 198,109
Georgia 865 - 3,947 7,581 18,607 10,803 80,746 122,550 1,142 285 3,846 7,734 6,011 1,160 63,906 84,084 206,634
Hawaii - - 126 411 344 124 1,643 2,647 88 54 433 309 423 305 2,943 4,555 7,203
Idaho 841 179 2,674 2,360 9,543 6,444 58,360 80,401 150 47 662 1,076 1,232 18 7,096 10,281 90,682
Illinois 2,001 78 3,798 7,609 18,786 7,577 115,001 154,850 1,516 189 4,648 6,745 7,822 2,422 56,733 80,075 234,925
Indiana 1,262 236 3,163 3,351 15,957 13,908 69,363 107,240 809 270 2,857 5,020 5,512 1,360 32,977 48,805 156,045
Iowa 984 - 5,501 6,290 22,961 25,734 102,713 164,183 286 - 1,473 2,684 2,144 1 13,893 20,482 184,664
Kansas 1,029 651 4,228 6,837 36,134 15,149 141,671 205,699 377 307 500 2,208 2,835 721 16,201 23,150 228,849
Kentucky 1,145 640 1,961 3,775 9,412 15,030 72,687 104,650 374 103 1,041 2,183 2,234 651 17,801 24,387 129,037
Louisiana 857 39 1,609 3,098 7,597 5,252 52,040 70,491 660 116 1,728 3,145 3,467 345 18,887 28,349 98,840
Maine 449 1 1,278 1,515 5,264 3,393 19,640 31,541 140 28 208 398 819 114 3,470 5,176 36,717
Maryland 229 112 516 1,139 2,085 2,741 15,003 21,824 544 496 1,648 2,545 2,988 874 21,012 30,108 51,931
Massachusetts 103 17 169 507 1,395 992 6,778 9,963 818 519 3,180 6,497 4,945 - 33,244 49,202 59,164
Michigan 905 553 3,428 7,865 26,346 6,824 89,535 135,456 1,088 569 3,803 7,955 6,308 202 41,222 61,148 196,604
Minnesota 946 54 5,559 10,735 25,164 19,347 126,916 188,722 524 355 993 4,131 3,554 1,289 25,081 35,928 224,650
Mississippi 931 - 2,870 6,042 19,229 3,720 70,871 103,662 407 103 1,527 1,756 2,541 17 14,674 21,024 124,687
Missouri 1,354 1,811 3,025 6,462 26,136 10,088 124,285 173,162 866 795 1,399 3,470 3,729 619 28,545 39,422 212,584
Montana 1,761 - 4,462 4,588 11,055 14,214 75,480 111,562 157 - 414 469 649 87 5,065 6,842 118,404
Nebraska 667 534 3,764 6,728 18,298 14,102 96,305 140,398 111 210 525 1,396 1,043 112 9,515 12,911 153,309
Nevada 735 - 2,445 1,168 3,635 4,115 49,332 61,429 262 86 607 1,438 80 1,926 12,158 16,556 77,986
New Hampshire 228 15 519 1,006 1,676 1,714 12,713 17,872 134 119 360 790 871 - 5,879 8,152 26,024
New Jersey 72 57 257 494 1,247 543 6,095 8,765 622 729 2,895 5,843 4,704 646 38,431 53,869 62,635
New Mexico 1,357 - 3,085 3,692 7,272 4,943 86,555 106,905 251 19 1,128 1,186 1,370 491 13,543 17,988 124,893
New York 1,294 291 3,389 4,570 9,073 14,955 69,243 102,815 1,511 1,314 5,087 8,831 8,891 424 53,840 79,898 182,713
North Carolina 903 675 2,531 4,966 12,055 9,699 75,181 106,010 1,200 761 3,210 5,552 5,418 745 49,866 66,750 172,761
North Dakota 820 - 4,737 4,065 19,289 - 108,129 137,039 98 - 335 506 533 - 3,191 4,664 141,703
Ohio 1,034 538 2,459 4,272 17,758 10,143 85,333 121,537 1,499 934 3,937 6,391 8,650 972 54,053 76,436 197,972
Oklahoma 1,040 3 3,616 4,304 33,860 4,838 108,835 156,497 460 330 1,891 3,643 2,491 221 21,255 30,291 186,788
Oregon 797 - 4,276 3,580 13,154 12,798 68,482 103,086 377 103 1,376 2,074 3,418 812 16,319 24,480 127,566
Pennsylvania 1,729 564 2,441 7,160 11,625 11,178 81,691 116,388 1,268 913 4,602 6,573 9,412 18 54,896 77,683 194,071
Rhode Island 29 17 156 116 277 244 1,349 2,187 84 130 551 548 873 51 5,253 7,489 9,677
South Carolina 879 72 2,487 4,804 16,126 3,269 61,084 88,721 490 135 1,712 2,858 4,524 125 26,951 36,795 125,516
South Dakota 951 468 4,172 4,767 19,983 10,049 86,891 127,281 141 29 220 700 563 - 3,838 5,492 132,773
Tennessee 1,037 23 2,872 4,741 8,046 15,559 71,200 103,478 897 278 3,062 4,172 4,107 1,617 37,074 51,206 154,684
Texas 3,220 206 13,538 16,961 56,555 23,882 216,629 330,991 2,347 2,245 9,936 12,871 25,391 1,809 120,785 175,385 506,376
Utah 1,101 14 1,870 2,116 5,225 5,600 44,494 60,419 407 78 1,061 1,091 1,788 885 12,988 18,298 78,717
Vermont 412 3 530 1,182 3,174 1,453 13,766 20,520 103 26 204 238 397 52 1,397 2,417 22,938
Virginia 962 149 2,628 5,785 11,976 7,924 49,038 78,463 839 566 2,181 3,660 4,093 1,256 30,238 42,832 121,294
Washington 690 985 2,113 3,258 13,018 10,084 60,609 90,758 539 678 2,321 4,415 4,440 345 26,302 39,040 129,798
West Virginia 514 1 1,636 2,167 8,892 3,467 35,130 51,807 379 23 643 1,160 1,450 99 6,963 10,717 62,523
Wisconsin 825 327 4,621 7,633 19,444 13,630 101,099 147,579 589 550 3,135 4,347 4,818 - 25,036 38,475 186,055
Wyoming 1,300 - 3,165 1,964 4,385 13,951 18,389 43,154 170 4 380 414 848 192 2,580 4,588 47,742
U.S. Total 47,122 10,466 145,100 215,244 656,386 418,090 3,257,540 4,749,949 30,835 19,473 106,946 180,999 207,741 28,730 1,397,422 1,972,145 6,722,094
Puerto Rico 71 - 75 364 390 389 3,846 5,135 414 90 636 1,514 1,937 - 19,819 24,410 29,545
Grand Total 47,193 10,466 145,175 215,608 656,776 418,480 3,261,386 4,755,084 31,249 19,563 107,582 182,513 209,678 28,730 1,417,241 1,996,555 6,751,639

(1) Due to conversion from English to metric units and to rounding, individual cell values may not agree with corresponding mileage table cell values.

Page last modified on October 23, 2020
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000