Figure 1-1: Rural Road Conditions in Colorado: 2000

Figure 1-1: Rural Road Conditions in Colorado: 2000

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(Miles)

  Interstate Other principal arterial Minor arterial Major collector
Total 767 2,242 3,629 3,142
Very good 1 9 0 0
Good 766 1,561 2,260 1,589
Fair 0 606 1,166 1,006
Mediocre 0 54 189 348
Poor 0 12 14 199

(Percent)

  Interstate Other principal arterial Minor arterial Major collector
Total 100 100 100 100
Very good 0 0 0 0
Good 100 70 62 51
Fair 0 27 32 32
Mediocre 0 2 5 11
Poor 0 1 0 6

NOTE: Numbers may not add to 100 due to rounding.

NOTE FOR DATA ON THIS PAGE: Road condition is based on measured pavement roughness using the International Roughness Index (IRI). IRI is a measure of surface condition. A comprehensive measure of pavement condition would require data on other pavement distresses such as rutting, cracking, and faulting.

SOURCE FOR DATA ON THIS PAGE: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics, Washington, DC: annual editions, tables HM-63 and HM-64, available at http://www.fhwa.dot.gov/ as of Feb. 1, 2002.