Table 1-4: North Dakota Road Condition by Functional System -- Rural

Table 1-4: North Dakota Road Condition by Functional System -- Rural

(Miles)

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  1995 1996 1997 1998 1999 2000
Interstate (total reported) 530 531 530 530 530 531
Very good 0 6 73 73 143 142
Good 147 147 301 314 276 294
Fair 188 221 118 105 90 75
Mediocre 162 129 38 38 21 20
Poor 33 28 0 0 0 0
Not reported 0 0 0 0 0 0
Other principal arterial (total reported) 2930 2896 2930 2931 2931 2929
Very good 56 31 348 348 528 292
Good 404 554 1381 1381 1442 1387
Fair 1883 1863 1149 1150 933 1229
Mediocre 520 432 50 50 27 21
Poor 67 16 2 2 1 0
Not reported 0 34 0 0 0 0
Minor arterial (total reported) 2513 2513 2512 2514 2512 2515
Very good 23 23 166 165 335 236
Good 373 250 1138 1136 1366 896
Fair 1613 1667 1207 1210 809 1351
Mediocre 400 469 1 3 2 32
Poor 104 104 0 0 0 0
Not reported 0 0 0 0 0 0
Major collector (total reported) N N N N N 2903
Very good N N N N N 107
Good N N N N N 1300
Fair N N N N N 1496
Mediocre N N N N N 0
Poor N N N N N 0
Not reported N N N N N N

KEY: N = data do not exist.

NOTE: In 2000, the Federal Highway Administration began reporting road condition for rural major collectors using the International Roughness Index, if available. In prior years, data were only available using the Present Serviceability Rating.

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.