Table 1-5: Iowa Road Condition by Functional System -- Urban

Table 1-5: Iowa Road Condition by Functional System -- Urban

(Miles)

Excel | CSV

  1995 1996 1997 1998 1999 2000
Interstate (total reported) 113 145 134 147 147 147
Very good 0 0 0 0 2 4
Good 28 32 48 50 48 44
Fair 37 39 41 32 36 36
Mediocre 56 59 27 44 40 47
Poor 12 15 18 21 21 16
Not reported 14 2 13 0 0 0
Other freeways and expressways (total reported) 0 0 0 0 0 0
Very good 0 0 0 0 0 0
Good 0 0 0 0 0 0
Fair 0 0 0 0 0 0
Mediocre 0 0 0 0 0 0
Poor 0 0 0 0 0 0
Not reported 0 0 0 0 0 0
Other principal arterial (total reported) 247 273 550 606 603 631
Very good 9 12 11 11 62 17
Good 41 53 89 117 110 134
Fair 162 171 277 308 265 290
Mediocre 35 31 102 85 82 93
Poor 0 6 71 85 84 97
Not reported 450 434 167 110 112 86
Urban minor arterial (total reported) N N N N N 85
Very good N N N N N 4
Good N N N N N 19
Fair N N N N N 39
Mediocre N N N N N 13
Poor N N N N N 10
Not reported N N N N N N
Urban collector (total reported) N N N N N 5
Very good N N N N N 2
Good N N N N N 1
Fair N N N N N 0
Mediocre N N N N N 2
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 urban minor arterials and urban 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.