Table 1-26: Condition of U.S. Roadways by Functional System

Table 1-26: Condition of U.S. Roadways by Functional System

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  1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
RURAL                                      
Interstates miles reported 33,547 33,677 33,027 29,089 31,502 31,254 31,312 31,431 30,498 32,820 32,888 32,951 32,907 31,956 31,341 30,802 30,512 30,040 30,076
Poor, percent 8.7 7.6 5.2 7.0 6.5 6.3 3.9 3.6 4.1 2.4 2.1 1.9 2.1 1.6 2.0 1.7 2.0 1.9 1.9
Mediocre, percentb NR NR 14.1 27.7 26.5 20.7 19.1 19.1 16.5 14.0 12.2 11.7 10.2 9.8 10.4 9.5 8.0 7.9 7.7
Fair, percent 31.9 31.7 17.4 20.9 23.9 22.3 21.7 20.7 17.8 18.1 16.9 15.4 15.5 15.4 14.5 13.6 12.8 12.5 12.1
Good, percentb NR NR 27.6 36.1 33.2 36.9 38.8 41.0 42.6 44.0 44.8 43.3 44.0 43.9 46.9 47.0 46.5 46.8 46.9
Very good, percent 59.5 60.7 35.6 8.3 9.9 13.9 16.6 15.7 19.0 21.5 23.9 27.7 28.2 29.3 26.2 28.2 30.7 30.9 31.4
Unpaved, percent N N N N N N N N N N N   N N N N N N N
Miles not reporteda N N N 3,563 955 1,326 1,508 1,382 2,313 153 162 109 84 87 103 92 71 311 117
Other principal arterials miles reported 83,802 85,729 94,798 78,296 89,506 89,265 92,103 92,170 93,333 97,247 97,297 97,946 97,854 96,656 95,390 94,216 94,500 94,396 94,367
Poor, percent 3.4 3.6 3.3 2.9 2.4 4.4 1.4 1.6 1.4 0.9 0.8 0.7 0.7 0.7 0.9 0.8 0.8 0.6 0.5
Mediocre, percentb NR NR 5.9 9.2 8.2 7.6 5.8 4.9 4.6 3.7 3.2 3.0 2.7 2.8 3.3 2.8 2.5 2.5 2.4
Fair, percent 42.6 44.5 34.6 54.8 57.4 51.1 49.1 47.7 43.3 41.5 38.7 37.3 35.6 35.5 35.9 33.5 31.3 30.9 30.5
Good, percentb NR NR 28.5 26.7 26.6 27.9 34.4 37.2 38.3 40.5 42.9 42.5 44.2 44.6 44.9 45.8 46.5 46.5 47.5
Very good, percent 53.8 51.9 27.6 6.4 5.4 9.0 9.3 8.6 12.3 13.5 14.4 16.5 16.7 16.4 14.9 17.1 18.9 19.5 19.1
Unpaved, percent N N N N N N N N N N N N N N N N N N N
Miles not reporteda N N N 17,905 7,489 8,683 6,028 6,083 5,524 1,587 1,619 1,247 1,009 386 552 946 430 377 579
Minor arterials miles reported 144,735 142,866 137,637 134,837 124,877 121,443 126,381 126,525 130,591 135,192 136,096 134,706 136,955 134,984 134,884 134,358 134,914 134,798 134,386
Poor, percent 4.6 4.3 3.9 3.9 3.5 3.7 2.3 2.3 1.9 1.7 1.7 1.7 1.3 1.3 1.4 1.4 1.7 1.2 1.3
Mediocre, percentb NR NR 7.1 9.1 10.5 9.0 8.2 6.7 6.0 5.2 5.3 5.2 4.5 4.8 5.1 4.0 4.2 4.5 4.5
Fair, percent 48.2 47.3 36.4 53.5 57.9 54.7 50.7 50.4 47.2 47.3 46.2 44.9 43.6 43.0 44.3 42.0 40.7 40.9 40.8
Good, percentb NR NR 25.3 25.0 23.6 23.9 31.0 33.6 34.3 34.4 35.6 36.9 39.1 41.2 39.5 41.6 41.5 40.3 40.4
Very good, percent 47.2 48.4 26.8 8.5 4.5 8.7 7.7 7.0 10.6 11.4 11.2 11.3 11.6 9.7 9.6 11.0 11.8 13.0 13.1
Unpaved, percent Z Z N N N N N N N N N N N N N N N N N
Miles not reporteda N N N 12,740 13,294 15,708 10,978 10,978 6,664 1,968 1,436 2,874 606 607 573 1,049 455 497 616
Major collectors miles reported 436,365 436,737 434,175 432,223 431,111 431,712 432,117 386,122 388,498 389,134 388,488 389,579 389,125 383,414 379,061 378,722 378,753 378,451 380,297
Poor, percent 8.9 7.7 7.8 6.8 6.5 6.5 6.7 7.8 7.4 9.0 8.5 7.7 7.7 7.4 6.9 6.5 6.2 5.7 5.3
Mediocre, percentb NR NR 11.0 12.4 11.3 11.4 10.3 12.3 11.9 12.1 12.7 12.8 11.8 11.7 11.9 12.0 11.7 12.1 12.4
Fair, percent 43.8 45.2 32.3 37.7 33.5 30.8 34.4 37.6 39.0 44.8 43.7 43.7 43.4 44.3 46.5 46.3 47.0 48.6 48.3
Good, percentb NR NR 17.7 16.3 16.1 17.4 20.0 23.0 23.4 20.9 22.0 23.4 24.9 25.1 23.5 24.2 23.4 23.0 22.8
Very good, percent 36.2 36.1 20.4 15.9 21.9 23.7 18.4 19.3 18.3 13.1 13.2 12.5 12.2 11.4 11.1 11.0 11.7 10.7 11.2
Unpaved, percent 11.1 11.0 10.7 10.9 10.7 10.2 10.1 N N N N N N N N N N N N
Miles not reporteda N N N N N N N 2,402 N N N N N N N N N N N
URBAN                                      
Interstates miles reported 11,527 11,603 12,466 10,738 12,338 12,307 12,430 12,477 12,231 13,109 13,139 13,256 13,367 14,331 14,984 15,544 15,899 16,035 16,348
Poor, percent 8.6 7.7 7.1 10.6 13.0 10.4 8.6 9.0 9.4 7.3 6.5 7.4 7.7 7.7 7.2 6.0 5.2 5.9 5.4
Mediocre, percentb NR NR 13.2 30.9 29.9 26.8 28.3 27.0 25.5 23.1 21.7 20.8 20.6 19.1 17.7 16.8 16.3 16.0 15.2
Fair, percent 32.2 32.3 17.0 23.6 24.2 23.8 24.7 24.4 21.8 22.6 21.4 20.9 20.3 18.8 19.5 18.6 18.4 18.1 17.3
Good, percentb NR NR 28.0 28.3 26.7 27.5 30.7 32.9 32.0 34.9 37.1 35.9 36.0 36.6 38.2 42.0 41.4 41.3 42.9
Very good, percent 59.1 60.0 34.7 6.5 6.2 11.4 7.6 6.7 11.4 12.0 13.3 14.9 15.4 17.9 17.4 16.6 18.7 18.8 19.2
Unpaved, percent N N N N N N N N N N N N N N N N N N N
Miles not reporteda N N N 2,140 788 857 787 771 1,040 230 226 156 123 131 140 157 139 271 193
Other freeways and expressway miles reported 7,670 7,714 8,465 7,011 7,618 7,804 8,410 8,480 8,772 8,860 8,796 8,959 9,242 9,786 10,143 10,443 10,659 10,832 11,175
Poor, percent 2.2 2.3 2.6 3.8 5.3 4.8 3.4 3.3 3.2 2.6 2.8 3.1 2.7 2.4 2.1 1.9 1.5 1.6 1.4
Mediocre, percentb NR NR 5.9 9.4 12.7 9.8 8.7 8.7 8.7 8.1 8.1 7.1 7.6 8.3 7.6 6.0 5.0 5.5 5.1
Fair, percent 43.9 44.2 32.4 60.6 58.1 54.7 54.7 58.5 54.3 53.6 50.7 50.5 48.6 45.7 45.5 44.7 43.0 42.3 42.5
Good, percentb NR NR 28.1 22.7 20.9 20.4 26.3 25.2 27.1 29.0 31.6 31.5 33.3 35.0 37.4 39.6 40.1 40.5 40.6
Very good, percent 53.9 53.5 31.0 3.5 2.9 10.3 6.8 4.2 6.6 6.8 6.8 7.7 7.9 8.6 7.4 7.9 10.3 10.0 10.3
Unpaved, percent N N N N N N N N N N N N N N N N N N N
Miles not reporteda N N N 1,846 1,377 1,166 617 579 397 281 353 167 82 81 98 108 84 78 152
Other principal arterials miles reported 51,987 52,349 52,165 30,337 38,598 41,444 44,498 45,009 44,886 48,045 47,890 48,931 50,016 53,431 56,831 59,743 61,064 61,259 62,584
Poor, percent 5.9 6.6 6.8 9.2 12.5 12.4 11.8 12.1 12.9 12.5 13.2 12.9 13.3 12.7 12.2 11.8 11.1 11.4 11.6
Mediocre, percentb NR NR 11.5 13.3 16.3 14.7 14.1 14.6 18.5 18.1 16.8 16.4 16.4 16.4 15.5 15.7 14.5 15.4 15.2
Fair, percent 49.0 49.1 34.8 55.0 50.8 47.2 48.9 49.5 45.3 45.2 45.1 45.7 46.1 46.7 46.8 47.2 44.9 45.8 45.8
Good, percentb NR NR 21.4 19.3 16.6 15.9 17.5 17.8 17.6 18.8 19.4 19.5 19.4 19.5 20.0 20.1 21.4 21.7 21.8
Very good, percent 45.1 44.3 25.3 3.3 3.8 9.7 7.7 6.0 5.8 5.4 5.4 5.5 4.9 4.7 5.5 5.3 8.2 5.6 5.5
Unpaved, percent N N N N N N N N N N N N N N N N N N N
Miles not reporteda N N N 22,498 14,492 11,352 8,485 8,209 8,246 5,154 5,426 4,126 3,422 3,440 2,863 2,064 1,765 2,030 1,975
Minor arterials miles reported 74,656 74,979 80,368 86,819 87,852 88,510 89,020 88,484 88,667 88,663 88,338 88,250 89,559 92,527 96,170 100,290 101,637 102,786 104,883
Poor, percent 8.9 7.4 7.9 7.9 6.7 6.7 6.9 7.2 7.3 9.1 10.0 10.5 10.5 11.4 13.0 12.3 12.2 13.2 12.6
Mediocre, percentb NR NR 14.3 13.8 12.3 13.6 13.0 13.0 12.2 13.2 16.0 15.9 16.1 16.5 15.8 15.2 14.6 14.7 14.6
Fair, percent 48.5 49.9 34.1 40.2 38.1 36.9 37.9 37.9 39.5 40.7 39.8 41.1 40.7 41.6 40.8 40.7 40.1 39.3 40.5
Good, percentb NR NR 19.2 18.4 20.5 20.4 20.7 21.4 21.1 18.5 16.9 16.8 17.4 16.7 15.9 16.4 16.2 16.5 16.3
Very good, percent 42.1 42.1 24.0 19.4 22.1 22.1 21.1 20.6 19.9 18.6 17.3 15.7 15.3 13.8 14.5 15.4 16.9 16.3 16.0
Unpaved, percent 0.5 0.6 0.5 0.4 0.3 0.3 0.4 N N N N N N N N N N N N
Miles not reporteda N N N N N N N 374 N N N N N N N N N N N
Collectors miles reported 78,248 77,097 82,657 84,856 86,098 87,331 87,790 86,666 86,705 86,821 86,030 86,265 87,754 94,939 99,675 103,979 106,843 107,336 111,655
Poor, percent 16.5 11.2 10.5 10.6 9.8 9.7 9.7 10.6 10.4 13.4 14.7 14.6 15.4 16.5 18.1 16.9 18.8 19.8 18.6
Mediocre, percentb NR NR 16.9 16.8 16.2 16.8 16.6 16.0 15.0 14.9 17.4 17.3 17.4 17.5 16.7 16.6 16.1 16.6 16.6
Fair, percent 50.4 53.5 35.2 40.0 40.0 39.0 39.2 39.0 39.9 37.7 35.7 36.6 36.8 36.0 34.3 35.8 35.1 34.5 36.5
Good, percentb NR NR 17.3 16.1 17.0 17.2 18.2 18.4 17.6 15.4 14.2 13.4 13.7 13.4 13.2 14.4 12.9 12.7 12.2
Very good, percent 31.7 34.2 19.1 15.5 16.0 16.6 15.4 15.9 17.1 18.6 18.0 18.1 16.7 16.6 17.7 16.3 17.1 16.4 16.1
Unpaved, percent 1.3 1.1 1.1 1.0 0.9 0.8 0.9 N N N N N N N N N N N N
Miles not reporteda N N N N N N N 663 N N N N N N N N N N N

KEY: N = data do not exist; NR = not reported; Z = value too small to report.

a Historical differences in Miles not reported result from the transition from the Present Serviceability Rating (PSR) to the International Roughness Indicator (IRI).

b For 1990 and 1991, this category is Included in row below.

NOTES

Numbers may not add to totals due to rounding.

Interstates have stricter roughness standards than other roads and its roughness classifications are not comparable with the other categories.

Data are for the 50 states and the District of Columbia. The terms Poor and Mediocre refer to Federal Highway Administration (FHWA)'s pavement condition criteria categories for quantitative International Roughness Index and Present Serviceability Ratings. For further information, refer to the U.S. Department of Transportation, FHWA, Status of the Nation's Highways, Bridges, and Transit: 2002 Conditions and Performance Report, Exhibit 3-3, available at: http://www.fhwa.dot.gov/policy, as of January 2010.

Data prior to 1993 are not comparable with later years because of differences in pavement condition indicators used for the two periods. For additional information, refer to the accuracy profile in the appendix of the Status of the Nation's Highways, Bridges, and Transit: 2002 Conditions and Performance Report. Total mileage in this table will not match that in table 1-5 due to a change in the method of preparing mileage data derived from the Highway Performance Monitoring System, beginning with the 1997 issue of FHWA's Highway Statistics.

SOURCES

Rural major collector, urban minor arterial, and urban collector:

U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual Issues), table HM-63, available at http://www.fhwa.dot.gov/policy/ohpi/hss/index.cfm as of Aug. 18, 2010.

All other categories except rural major collector, urban minor arterial, and urban collector:

1990-92: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual Issues), table HM-63, available at http://www.fhwa.dot.gov/policy/ohpi/hss/index.cfm as of Aug. 18, 2010.

1993-2008: Ibid., table HM-64, available at http://www.fhwa.dot.gov/policy/ohpi/hss/index.cfm as of Aug. 18, 2010.