Table 1-3: Montana Road Condition by Functional System -- Rural

Table 1-3: Montana Road Condition by Functional System -- Rural

(Miles)

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  1995 1996 1997 1998 1999 2000
Interstate (total reported) 1,136 1,137 1,136 1,134 1,134 1,134
Very good 196 196 275 275 339 354
Good 508 509 578 576 516 501
Fair 164 164 154 154 139 123
Mediocre 225 225 119 119 128 144
Poor 43 43 10 10 12 12
Not reported 1 0 0 0 0 0
Other principal arterial (total reported) 2,622 2,622 2,621 2,623 2,623 2,616
Very good 16 245 247 259 259 322
Good 590 1,289 1,303 1,359 1,359 1,549
Fair 1,763 1,006 993 909 909 688
Mediocre 215 77 73 87 87 48
Poor 38 5 5 9 9 9
Not reported 0 0 0 0 0 6
Minor arterial (total reported) 2,942 2,977 2,984 2,985 2,986 2,989
Very good 0 237 235 220 228 374
Good 267 1,469 1,503 1,414 1,398 1,608
Fair 2,228 1,155 1,171 1,303 1,310 919
Mediocre 441 104 63 48 50 88
Poor 6 12 12 0 0 0
Not reported 48 13 5 0 0 0
Major collector (total reported) N N N N N 37
Very good N N N N N 0
Good N N N N N 0
Fair N N N N N 37
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.