Figure 1-1: Rural Road Conditions in North Dakota: 2000

Figure 1-1: Rural Road Conditions in North Dakota: 2000

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(Miles)

  Interstate Other principal arterial Minor arterial Major collector
Total 531 2,929 2,515 2,903
Very good 142 292 236 107
Good 294 1,387 896 1,300
Fair 75 1,229 1,351 1,496
Mediocre 20 21 32 0
Poor 0 0 0 0

(Percent)

  Interstate Other principal arterial Minor arterial Major collector
Total 100 100 100 100
Very good 27 10 9 4
Good 55 47 36 45
Fair 14 42 54 52
Mediocre 4 1 1 0
Poor 0 0 0 0

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.