Table 1-23. Condition of U.S. Roadways by Functional System

Table 1-23. Condition of U.S. Roadways by Functional System

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  1990 1991 1992 1993 1994 1995 1996 1997 1998
Rural                 
Interstates                  
Miles reported 33,547 33,677 33,027 29,089 31,502 31,254 31,312 31,431 30,498
Poor (%) 8.7 7.6 5.2 7.0 6.5 6.3 3.9 3.6 4.1
Mediocre (%) a a 14.1 27.7 26.5 20.7 19.1 19.1 16.5
Fair (%) 31.9 31.7 17.4 20.9 23.9 22.3 21.7 20.7 17.8
Good (%) a a 27.6 36.1 33.2 36.9 38.8 41.0 42.6
Very good (%) 59.5 60.7 35.6 8.3 9.9 13.9 16.6 15.7 19.0
Unpaved (%) N N N N N N N N N
Miles not reported N N N 3,563 955 1,326 1,508 1,382 2,313
Other principal arterials                  
Miles reported 83,802 85,729 94,798 78,296 89,506 89,265 92,103 92,170 93,333
Poor (%) 3.4 3.6 3.3 2.9 2.4 4.4 1.4 1.6 1.4
Mediocre (%) a a 5.9 9.2 8.2 7.6 5.8 4.9 4.6
Fair (%) 42.6 44.5 34.6 54.8 57.4 51.1 49.1 47.7 43.3
Good (%) a a 28.5 26.7 26.6 27.9 34.4 37.2 38.3
Very good (%) 53.8 51.9 27.6 6.4 5.4 9.0 9.3 8.6 12.3
Unpaved (%) N N N N N N N N N
Miles not reported N N N 17,905 7,489 8,683 6,028 6,083 5,524
Minor arterials                  
Miles reported 144,735 142,866 137,637 134,837 124,877 121,443 126,381 126,525 130,591
Poor (%) 4.6 4.3 3.9 3.9 3.5 3.7 2.3 2.3 1.9
Mediocre (%) a a 7.1 9.1 10.5 9.0 8.2 6.7 6.0
Fair (%) 48.2 47.3 36.4 53.5 57.9 54.7 50.7 50.4 47.2
Good (%) a a 25.3 25.0 23.6 23.9 31.0 33.6 34.3
Very good (%) 47.2 48.4 26.8 8.5 4.5 8.7 7.7 7.0 10.6
Unpaved (%) -- -- N N N N N N N
Miles not reported N N N 12,740 13,294 15,708 11,201 10,978 6,664
Major collectors                  
Miles reported 436,365 436,737 434,175 432,223 431,111 431,712 432,117 386,122 388,498
Poor (%) 8.9 7.7 7.8 6.8 6.5 6.5 6.7 7.8 7.4
Mediocre (%) a a 11.0 12.4 11.3 11.4 10.3 12.3 11.9
Fair (%) 43.8 45.2 32.3 37.7 33.5 30.8 34.3 37.6 39.0
Good (%) a a 17.7 16.3 16.1 17.4 20.0 23.0 23.4
Very good (%) 36.2 36.1 20.4 15.9 21.9 23.7 18.4 19.3 18.3
Unpaved (%) 11.1 11.0 10.7 10.9 10.7 10.2 10.1 N N
Miles not reported N N N N N N N 2,402 N
  1990 1991 1992 1993 1994 1995 1996 1997 1998
Urban                 
Interstates                 
Miles reported 11,527 11,603 12,466 10,738 12,338 12,307 12,430 12,477 12,231
Poor (%) 8.6 7.7 7.1 10.6 13.0 10.4 8.6 9.0 9.4
Mediocre (%) a a 13.2 30.9 29.9 26.8 28.3 27.0 25.5
Fair (%) 32.2 32.3 17.0 23.6 24.2 23.8 24.7 24.4 21.8
Good (%) a a 28.0 28.3 26.7 27.5 30.7 32.9 32.0
Very good (%) 59.1 60.0 34.7 6.5 6.2 11.4 7.6 6.7 11.4
Unpaved (%) N N N N N N N N N
Miles not reported N N N 2,140 788 857 787 771 1,040
Other freeways and expressways                  
Miles reported 7,670 7,714 8,465 7,011 7,618 7,804 8,410 8,480 8,772
Poor (%) 2.2 2.3 2.6 3.8 5.3 4.8 3.4 R3.3 3.2
Mediocre (%) a a 5.9 9.4 12.7 9.8 8.7 R8.7 8.7
Fair (%) 43.9 44.2 32.4 60.6 58.1 54.7 54.7 R58.5 54.3
Good (%) a a 28.1 22.7 20.9 20.4 26.3 R25.2 27.1
Very good (%) 53.9 53.5 31.0 3.5 2.9 10.3 6.8 R4.2 6.6
Unpaved (%) N N N N N N N N N
Miles not reported N N N 1,846 1,377 1,166 619 579 397
Other principal arterials                  
Miles reported 51,987 52,349 52,165 30,337 38,598 41,444 44,498 45,009 44,886
Poor (%) 5.9 6.6 6.8 9.2 12.5 12.4 11.8 R12.1 12.9
Mediocre (%) a a 11.5 13.3 16.3 14.7 14.1 R14.6 18.5
Fair (%) 49.0 49.1 34.8 55.0 50.8 47.2 48.9 R49.5 45.3
Good (%) a a 21.4 19.3 16.6 15.9 17.5 R17.8 17.6
Very good (%) 45.1 44.3 25.3 3.3 3.8 9.7 7.7 R6.0 5.8
Unpaved (%) N N N N N N N N N
Miles not reported N N N 22,498 14,492 11,352 8,485 8,209 8,246
Minor arterials                  
Miles reported 74,656 74,979 80,368 86,819 87,852 88,510 89,020 88,484 88,667
Poor (%) 8.9 7.4 7.9 7.9 6.7 6.7 6.9 7.2 7.3
Mediocre (%) a a 14.3 13.8 12.3 13.6 13.0 13.0 12.2
Fair (%) 48.5 49.9 34.1 40.2 38.1 36.9 37.9 37.9 39.5
Good (%) a a 19.2 18.4 20.5 20.4 20.7 21.4 21.1
Very good (%) 42.1 42.1 24.0 19.4 22.1 22.1 21.1 20.6 19.9
Unpaved (%) 0.5 0.6 0.5 0.4 0.3 0.3 0.4 N N
Miles not reported N N N N N N N 374 N
Collectors                  
Miles reported 78,248 77,097 82,657 84,856 86,098 87,331 87,790 86,666 86,705
Poor (%) 16.5 11.2 10.5 10.6 9.8 9.7 9.7 10.6 10.4
Mediocre (%) a a 16.9 16.8 16.2 16.8 16.6 16.0 15.0
Fair (%) 50.4 53.5 35.2 40.0 40.0 39.0 39.2 39.0 39.9
Good (%) a a 17.3 16.1 17.0 17.2 18.2 18.4 17.6
Very good (%) 31.7 34.2 19.1 15.5 16.0 16.6 15.4 15.9 17.1
Unpaved (%) 1.3 1.1 1.1 1.0 0.9 0.8 0.9 N N
Miles not reported N N N N N N N 663 N

a Included in row below.

KEY: N = data do not exist; R = revised; -- =value too small to report.

NOTES: Because of the transition to a new indicator for pavement condition beginning with U.S. Department of Transportation, Federal Highway Administration (FHWA) data published in 1993, comparisons between pre-1993 data and 1993 and later data are  difficult. Thus, trend comparisons should be made with care. For additional information, the reader is referred to the accuracy  profile for this table in the appendix. Total mileage in this table will not match that in table 1-4 because of a change in the method of creating mileage-based tables derived from the Highway Performance Monitoring System, beginning with the 1997 issue of FHWA's Highway Statistics. Percents may not add to totals due to rounding.

SOURCES: 1990-92: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC:  Annual issues), table HM-63. 1993-98: Ibid. Highway Statistics (Washington, DC: Annual issues), table HM-63 for rural major collector, urban minor arterial, and  urban collector, and table HM-64 for all other categories.
1996 (revised data): Ibid., Internet site www.fhwa.dot.gov/ohim/ohimstat.htm.