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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Table HM-12M - Highway Statistics 2015

Highway Statistics 2015


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PUBLIC ROAD LENGTH - 2015 (1)
    KILOMETERS BY TYPE OF SURFACE AND OWNERSHIP/
    FUNCTIONAL SYSTEM NATIONAL SUMMARY

December 2016
Table HM-12M

OWNERSHIP/
FUNCTIONAL SYSTEM
UNPAVED PAVED (2) TOTAL
BITUMINOUS CONCRETE COMPOSITE TOTAL
Rural:            
  State Highway Agency: (3)            
    Interstate 0 26,452 9,104 8,957 44,514 44,514
    Other Freeways & Expressways 0 5,340 2,595 1,290 9,225 9,225
    Other Principal Arterial 453 110,350 8,300 22,984 141,634 142,087
    Minor Arterial 130 163,436 3,759 29,501 196,696 196,827
    Major Collector 1,974 318,738 7,342 18,592 344,673 346,646
    Subtotal 2,557 624,317 31,100 81,324 736,742 739,299
  Other Jurisdictions:            
    Interstate - 939 169 932 2,039 2,039
    Other Freeways & Expressways - 53 162 24 239 239
    Other Principal Arterial 22 1,143 457 71 1,671 1,693
    Minor Arterial 445 10,540 109 687 11,337 11,782
    Major Collector 66,145 199,717 11,378 12,420 223,515 289,659
    Subtotal 66,612 212,392 12,274 14,134 238,800 305,412
  Federal Agency:            
    Interstate - - - - - -
    Other Freeways & Expressways - - - - - -
    Other Principal Arterial - 104 3 - 107 107
    Minor Arterial - 1,271 - - 1,271 1,271
    Major Collector 658 3,221 9 71 3,300 3,958
    Subtotal 658 4,596 11 71 4,678 5,336
Subtotal 69,827 841,305 43,386 95,529 980,220 1,050,047
    Minor Collector 134,103   281,093 415,196
    Local 1,937,319     1,314,002 3,251,321
Total Rural 2,141,249       2,575,315 4,716,563
Urban:            
  State Highway Agency: (3)            
    Interstate - 12,682 7,706 7,910 28,298 28,298
    Other Freeways & Expressways 2 8,364 4,830 4,055 17,249 17,252
    Other Principal Arterial 29 51,371 7,972 22,923 82,266 82,295
    Minor Arterial 2 43,946 2,272 15,886 62,104 62,105
    Major Collector 4 33,232 2,183 3,868 39,283 39,287
    Minor Collector 3 2,308 213 138 2,659 2,662
      Subtotal 40 151,903 25,175 54,781 231,858 231,899
  Other Jurisdictions:            
    Interstate 24 664 260 1,012 1,936 1,960
    Other Freeways & Expressways 8 933 632 167 1,731 1,739
    Other Principal Arterial 0 18,201 3,149 3,074 24,424 24,424
    Minor Arterial 1,208 89,294 11,019 11,437 111,750 112,958
    Major Collector 2,838 134,791 11,791 11,038 157,621 160,459
    Minor Collector 484 14,833 412 440 15,684 16,168
    Subtotal 4,561 258,716 27,263 27,167 313,146 317,707
  Federal Agency:            
    Interstate - - - - - -
    Other Freeways & Expressways - 49 2 - 52 52
    Other Principal Arterial - 19 - 3 21 21
    Minor Arterial - 407 - 2 409 409
    Major Collector 13 166 9 3 179 192
    Minor Collector 13 39 - - 39 52
    Subtotal 26 680 12 8 700 725
Subtotal 4,627 411,299 52,450 81,955 545,704 550,331
    Local 93,675   1,280,870 1,374,546
Total Urban 98,303       1,826,574 1,924,877
Total Rural and Urban 2,239,551 1,252,604 95,835 177,485 4,401,889 6,641,440

(1) Includes the 50 States 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. Due to conversion from English to metric units and to rounding, individual cell values may not agree with corresponding mileage table cell values.

(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 December 7, 2016
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