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Table 1-1: Public Road Length, Miles by Functional System: 2013

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State Interstate Other principal and minor arterials1 Major and minor collectors Local Total
Alabama 1,002 9,716 22,386 68,733 101,837
Alaska 1,081 1,571 3,300 9,727 15,680
Arizona 1,168 6,021 8,072 51,178 66,441
Arkansas 656 7,441 21,061 72,499 101,656
California 2,451 30,002 32,223 110,313 174,989
Colorado 952 9,259 16,245 62,109 88,565
Connecticut 346 3,004 3,206 14,918 21,474
Delaware 41 680 1,039 4,633 6,393
District of Columbia 12 286 157 1,047 1,501
Florida 1,495 13,590 14,560 92,442 122,088
Georgia 1,247 14,329 23,037 90,006 128,620
Hawaii 55 824 752 2,800 4,430
Idaho 612 4,249 10,611 32,611 48,082
Illinois 2,185 14,771 22,169 106,583 145,708
Indiana 1,188 8,758 22,523 65,084 97,553
Iowa 782 9,778 31,629 72,240 114,429
Kansas 874 9,688 33,698 96,427 140,687
Kentucky 801 6,169 16,562 56,066 79,598
Louisiana 926 5,685 9,972 44,844 61,427
Maine 367 2,199 5,914 14,401 22,882
Maryland 481 4,110 5,059 22,772 32,422
Massachusetts 575 6,768 4,550 24,478 36,370
Michigan 1,244 15,008 24,458 81,431 122,141
Minnesota 914 13,686 30,408 93,759 138,767
Mississippi 700 7,740 15,892 50,784 75,116
Missouri 1,379 10,487 25,109 94,925 131,900
Montana 1,192 6,088 16,245 51,408 74,933
Nebraska 482 8,144 20,772 64,371 93,770
Nevada 596 3,471 5,612 30,460 40,139
New Hampshire 225 1,745 2,642 11,485 16,098
New Jersey 431 6,391 4,437 28,034 39,293
New Mexico 1,000 4,963 9,188 55,620 70,772
New York 1,724 14,601 20,737 77,666 114,728
North Carolina 1,255 10,018 17,351 77,579 106,202
North Dakota 571 5,941 11,929 68,637 87,078
Ohio 1,574 11,253 22,869 87,602 123,297
Oklahoma 933 8,417 25,490 78,100 112,940
Oregon 730 7,112 18,589 44,798 71,228
Pennsylvania 1,857 13,762 19,847 84,470 119,936
Rhode Island 70 914 887 4,235 6,106
South Carolina 851 7,233 15,089 43,059 66,232
South Dakota 679 6,430 19,004 56,446 82,558
Tennessee 1,104 9,305 17,994 67,132 95,536
Texas 3,415 33,280 65,154 211,378 313,228
Utah 937 3,772 8,162 33,384 46,254
Vermont 320 1,320 3,119 9,506 14,266
Virginia 1,119 8,764 14,394 50,472 74,748
Washington 764 8,412 17,292 55,980 82,448
West Virginia 555 3,498 8,635 26,063 38,750
Wisconsin 743 12,910 23,501 77,990 115,145
Wyoming 914 3,671 10,279 14,161 29,024
United States, total 47,575 417,232 803,807 2,846,848 4,115,462
U.S. total (incl. Puerto Rico)2 47,857 418,966 805,541 2,859,789 4,132,153

1Includes other freeways and expressways.

2Data for Puerto Rico are for 2010.

NOTE: The difference in total miles between tables 1-1 and 1-2 results from the Federal Highway Administration's expansion of sample data to derive estimates of road length by different variables. FHWA considers the length totals in this table to be the control totals should a single value be required.

SOURCE: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics, HM-20, available at www.fhwa.dot.gov/policyinformation/statistics.cfm as of June 2015.

Updated: Saturday, May 20, 2017