Bureau of Transportation Statistics (BTS)
BTS Home > Publications > National Transportation Statistics
Printable Version

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

Excel | CSV

  1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
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
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 1.0
Mediocre, percent b b 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 9.0
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
Good, percent b b 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
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
Unpaved, percent 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
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 97,947 97,854 96,656 95,390 94,216 94,500
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 3.6 1.7
Mediocre, percent b b 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 13.9 14.4
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 19.6 18.5
Good, percent b b 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
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
Unpaved, percent 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
Minor arterials miles reported 144,735 142,866 137,637 134,837 124,877 121,443 126,381 126,525 130,591 135,192 136,096 134,698 136,955 134,984 134,884 134,358 134,914
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 5.4 3.3
Mediocre, percent b b 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 18.8 21.1
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 23.2 22.2
Good, percent b b 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
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
Unpaved, percent - - 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 2,883 606 607 573 1049 455
Major collectors miles reported 436,365 436,737 434,175 432,223 431,111 431,712 432,117 386,122 171,134 389,134 388,488 389,573 389,125 383,414 379,061 378,722 378,753
Poor, percent 8.9 7.7 7.8 6.8 6.5 6.5 6.7 7.8 8.8 15.4 8.5 7.6 7.7 7.4 6.9 6.5 6.2
Mediocre, percent b b 11.0 12.4 11.3 11.4 10.3 12.3 13.0 15.8 12.7 12.8 11.8 11.7 11.9 12.0 11.7
Fair, percent 43.8 45.2 32.3 37.7 33.5 30.8 34.4 37.6 33.5 44.8 43.7 43.7 43.4 44.3 46.5 46.3 47.0
Good, percent b b 17.7 16.3 16.1 17.4 20.0 23.0 21.3 17.2 22.0 23.4 24.9 25.1 23.5 24.2 23.4
Very good, percent 36.2 36.1 20.4 15.9 21.9 23.7 18.4 19.3 23.4 6.7 13.2 12.5 12.2 11.4 11.1 11.0 11.7
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
Miles not reporteda N N N N N N N 2,402 217,566 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 13,261 13,367 14,331 14,984 15,544 15,899
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 2.4
Mediocre, percent b b 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 19.0
Fair, percent 32.2 32.3 17.0 23.6 24.2 23.8 24.7 24.4 21.8 22.5 21.4 20.9 20.3 18.8 19.5 18.6 18.4
Good, percent b b 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
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
Unpaved, percent 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 1,040 230 226 147 123 131 140 157 139
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 8,955 9,242 9,786 10,143 10,443 10,659
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 7.8 2.9
Mediocre, percent b b 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 22.0 23.9
Fair, percent 43.9 44.2 32.4 60.6 58.1 54.7 54.7 58.5 54.3 53.6 50.7 50.6 48.6 45.7 45.5 22.7 22.7
Good, percent b b 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
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
Unpaved, percent 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 1,166 617 579 397 281 353 176 82 81 98 108 84
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
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 27.4 17.5
Mediocre, percent b b 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 29.1 35.6
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 18.1 17.3
Good, percent b b 21.4 19.3 16.6 15.9 17.5 17.8 17.6 18.8 19.4 19.5 19.4 19.5 18.3 20.1 21.4
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
Unpaved, percent 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
Minor arterials miles reported 74,656 74,979 80,368 86,819 87,852 88,510 89,020 88,484 45,275 88,663 88,338 88,260 89,559 92,527 96,170 100,290 101,637
Poor, percent 8.9 7.4 7.9 7.9 6.7 6.7 6.9 7.2 5.7 19.4 10.0 10.5 10.5 11.4 13.0 12.3 12.2
Mediocre, percent b b 14.3 13.8 12.3 13.6 13.0 13.0 12.2 17.4 16.0 15.9 16.1 16.5 15.8 15.2 14.6
Fair, percent 48.5 49.9 34.1 40.2 38.1 36.9 37.9 37.9 36.0 40.7 39.8 41.1 40.7 41.6 40.8 40.7 40.1
Good, percent b b 19.2 18.4 20.5 20.4 20.7 21.4 22.1 14.2 16.9 16.8 17.4 16.7 15.9 16.4 16.2
Very good, percent 42.1 42.1 24.0 19.4 22.1 22.1 21.1 20.6 24.0 8.3 17.3 15.7 15.3 13.8 14.5 15.4 16.9
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
Miles not reporteda N N N N N N N 374 43,435 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 53,806 86,821 86,030 86,267 87,754 94,939 99,675 103,979 106,843
Poor, percent 16.5 11.2 10.5 10.6 9.8 9.7 9.7 10.6 8.1 22.1 14.7 14.6 15.4 16.5 18.1 16.9 18.8
Mediocre, percent b b 16.9 16.8 16.2 16.8 16.6 16.0 12.8 17.5 17.4 17.3 17.4 17.5 16.7 16.6 16.1
Fair, percent 50.4 53.5 35.2 40.0 40.0 39.0 39.2 39.0 39.4 37.7 35.7 36.6 36.8 36.0 34.3 35.8 35.1
Good, percent b b 17.3 16.1 17.0 17.2 18.2 18.4 18.8 12.8 14.2 13.5 13.7 13.4