Table 1-4: Alaska Road Condition by Functional System -- Rural

Table 1-4: Alaska Road Condition by Functional System -- Rural

(Miles)

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  1995 1996 1997 1998 1999 2000
Interstate (total reported) 1,032 1,033 1,034 1,030 1,030 1,030
Very good 1 1 1 12 23 13
Good 255 310 174 238 318 333
Fair 297 292 336 337 346 313
Mediocre 386 330 424 356 297 370
Poor 93 100 99 87 46 1
Not reported 0 0 0 0 0 0
Other principal arterial (total reported) 354 355 356 354 354 353
Very good 0 0 0 6 7 7
Good 65 66 72 90 109 113
Fair 85 134 87 68 39 66
Mediocre 181 137 170 150 181 108
Poor 23 18 27 40 18 59
Not reported 456 455 454 455 455 455
Minor arterial (total reported) 160 161 228 225 225 223
Very good 0 0 0 0 0 0
Good 38 44 129 61 52 46
Fair 1 14 43 0 17 121
Mediocre 84 57 19 127 119 46
Poor 37 46 37 37 37 10
Not reported 282 281 214 212 0 0
Major collector (total reported) N N N N N 845
Very good N N N N N 42
Good N N N N N 60
Fair N N N N N 532
Mediocre N N N N N 130
Poor N N N N N 81
Not reported N N N N N 0

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. In prior years, data were only available using the Present Servicability 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.