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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Table HM-12 - Highway Statistics 2018

Highway Statistics 2018


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PUBLIC ROAD LENGTH - 2018 (1)
    MILES BY TYPE OF SURFACE AND OWNERSHIP/
    FUNCTIONAL SYSTEM NATIONAL SUMMARY

August 30, 2019
Table HM-12

OWNERSHIP/
FUNCTIONAL SYSTEM
UNPAVED PAVED (2) TOTAL
BITUMINOUS CONCRETE COMPOSITE TOTAL
Rural:            
  State Highway Agency: (3)            
    Interstate 0 17,368 5,713 4,896 27,977 27,977
    Other Freeways & Expressways 0 3,240 1,731 1,275 6,246 6,246
    Other Principal Arterial 273 71,387 5,715 11,746 88,847 89,120
    Minor Arterial 81 102,855 2,153 15,519 120,527 120,607
    Major Collector 1,422 200,182 848 7,795 208,825 210,247
    Subtotal 1,776 395,032 16,160 41,230 452,422 454,198
  Other Jurisdictions:            
    Interstate - 843 147 292 1,282 1,282
    Other Freeways & Expressways - 48 129 - 177 177
    Other Principal Arterial 15 611 204 8 823 838
    Minor Arterial 321 7,588 77 372 8,037 8,357
    Major Collector 33,972 131,666 7,001 6,238 144,906 178,878
    Subtotal 34,308 140,756 7,558 6,910 155,224 189,532
  Federal Agency:            
    Interstate - - - - 0 0
    Other Freeways & Expressways - - - - 0 0
    Other Principal Arterial - 47 1 - 48 48
    Minor Arterial - 1,200 0 - 1,200 1,200
    Major Collector 324 1,619 1 37 1,657 1,981
    Subtotal 324 2,866 3 37 2,905 3,229
Subtotal 36,407 538,654 23,721 48,177 610,552 646,959
    Minor Collector 80,649       179,385 260,034
    Local 1,153,414       873,121 2,026,535
Total Rural 1,270,470       1,663,058 2,933,528
Urban:            
  State Highway Agency: (3)            
    Interstate - 8,863 4,970 3,963 17,795 17,795
    Other Freeways & Expressways - 5,778 3,129 1,948 10,855 10,855
    Other Principal Arterial - 33,484 4,640 10,770 48,895 48,895
    Minor Arterial 8 30,926 1,218 7,495 39,640 39,648
    Major Collector 17 22,495 1,374 2,025 25,894 25,911
    Minor Collector 12 2,014 11 238 2,263 2,276
      Subtotal 38 103,560 15,342 26,440 145,342 145,379
  Other Jurisdictions:            
    Interstate - 730 203 274 1,207 1,207
    Other Freeways & Expressways - 548 483 25 1,056 1,056
    Other Principal Arterial 3 13,714 2,040 1,590 17,344 17,347
    Minor Arterial 221 55,805 6,876 5,785 68,465 68,686
    Major Collector 1,018 85,134 6,899 5,685 97,718 98,736
    Minor Collector 593 12,307 371 607 13,286 13,879
    Subtotal 1,835 168,238 16,873 13,965 199,075 200,911
  Federal Agency:            
    Interstate - - - - - -
    Other Freeways & Expressways - 31 1 1 32 32
    Other Principal Arterial - 7 - 4 11 11
    Minor Arterial - 164 - 1 165 165
    Major Collector 7 98 6 2 105 113
    Minor Collector 6 22 - - 22 28
    Subtotal 14 321 7 8 335 349
Subtotal 1,886 272,119 32,221 40,412 344,753 346,639
    Local 44,318   836,315 880,633
Total Urban 46,204       1,181,068 1,227,272
Total Rural and Urban 1,316,675 810,773 55,942 88,589 2,844,126 4,160,800

(1) Includes the 50 States, Puerto Rico (data may be incomplete), and the District of Columbia. Some differences from other tables may be noted because these are estimated from sample and summary data; some States may have missing/incomplete data.

(2) Paved includes the following categories: Bituminous -- bituminous, asphalt-concrete (AC) overlay over existing AC pavement; Concrete -- JPCP jointed plain concrete pavement, JRCP jointed reinforced concrete pavement, CRCP continuously reinforced concrete pavment; unbonded jointed concrete overlay on PCC pavement, bonded PCC overlay on PCC pavement, other (includes "whitetopping"); Composite -- AC overlay over jointed concrete pavement, AC (bituminous overlay over existing CRCP).

(3) Prior to 1999 included other state agency roads.

 

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