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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Table HM-18 - Highway Statistics 2018

Highway Statistics 2018


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PUBLIC ROAD LENGTH - 2018 (1)
  MILES BY FUNCTIONAL SYSTEM AND FEDERAL-AID HIGHWAYS
  NATIONAL SUMMARY

August 30, 2019
Table HM-18

FUNCTIONAL SYSTEM FEDERAL-AID HIGHWAYS NON-
FEDERAL-AID
HIGHWAYS
TOTAL
NATIONAL HIGHWAY SYSTEM OTHER TOTAL
INTERSTATE OTHER TOTAL
Rural:              
    Principal Arterial:              
      Interstate 29,324 - 29,324 - 29,324   29,324
      Other Freeways and Expressways - 6,485 6,485 19 6,504   6,504
      Other - 87,527 87,527 2,680 90,207   90,207
        Subtotal 29,324 94,012 123,336 2,699 126,035   126,035
    Minor Arterial - 2,255 2,255 131,718 133,972   133,972
    Major Collector - 487 487 407,614 408,102   408,102
    Minor Collector - 2 2 - 2 260,029 260,031
    Local - 14 14 - 14 2,026,517 2,026,532
Total Rural 29,324 96,771 126,095 542,031 668,126 2,286,546 2,954,672
  Small Urban:              
      Principal Arterial:              
        Interstate 2,820 - 2,820 - 2,820   2,820
        Other Freeways and Expressways - 1,392 1,392 45 1,437   1,437
        Other - 11,769 11,769 1,571 13,341   13,341
          Subtotal 2,820 13,161 15,981 1,616 17,598   17,598
      Minor Arterial - 402 402 20,646 21,048   21,048
      Major Collector - 60 60 28,392 28,452   28,452
      Minor Collector - 15 15 4,905 4,921   4,921
      Local - 15 15 - 15 152,797 152,813
Total Small Urban 2,820 13,655 16,475 55,559 72,034 152,797 224,831
  Urbanized:              
      Principal Arterial:              
        Interstate 16,597 - 16,597 - 16,597   16,597
        Other Freeways and Expressways - 10,627 10,627 92 10,719   10,719
        Other - 48,290 48,290 5,217 53,507   53,507
          Subtotal 16,597 58,917 75,514 5,310 80,823   80,823
      Minor Arterial - 1,445 1,445 90,915 92,360   92,360
      Major Collector - 427 427 101,409 101,836   101,836
      Minor Collector - 108 108 12,823 12,931   12,931
      Local - 106 106 - 106 727,714 727,820
Total Urbanized 16,597 61,002 77,599 210,457 288,057 727,714 1,015,770
Total Urban:              
    Principal Arterial:              
      Interstate 19,417 - 19,417 - 19,417   19,417
      Other Freeways And Expressways - 12,019 12,019 137 12,156   12,156
      Other - 60,059 60,059 6,789 66,848   66,848
        Subtotal 19,417 72,078 91,495 6,926 98,421   98,421
    Minor Arterial - 1,848 1,848 111,561 113,408   113,408
    Major Collector - 487 487 129,801 130,288   130,288
    Minor Collector - 123 123 17,729 17,852   17,852
    Local - 122 122 - 122 880,511 880,633
Total Urban 19,417 74,657 94,074 266,017 360,091 880,511 1,240,602
Total Rural and Urban 48,741 171,428 220,169 808,048 1,028,217 3,167,057 4,195,274

(1) Includes the 50 States, Puerto Rico, and the District of Columbia.

 

Page last modified on October 29, 2019
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000