The data below shows the breakdown of Good, Fair,
and Poor condition MP pavements. These values are determined by a combination of
IRI, Traffic Volume, and Visual Inspections. Generally, pavement condition is
closely tied to rideability. However, during recent years, the percentage of
poor MP pavements has increased in spite of decreases in average roughness. This
is likely due to an increase in surface distresses that do not impact
rideability. Examples include centerline joint separation, raveling, and
rutting.
YEAR
MILES
IRI
AGE ADT GOOD FAIR POOR 1988
13,538 123 *** 3,250
51% 34% 15%
1989
13,808 120 *** 3,330
55% 33% 12%
1990 13,809 117
*** 3,410 59%
32% 9%
1991
13,809 115 *** 3,530
61% 30% 9%
1992 13,809 111
*** 3,620 65%
28% 8%
1993
13,809 110 *** 3,710
65% 26% 8%
1994 13,809 111
*** 3,770 63%
30% 8%
1995
13,809 112 *** 3,880
63% 28% 10%
1996 13,809 110
*** 3,970 64%
23% 12%
1997
13,809 108 *** 4,060
64% 23% 12%
1998 13,823 114
9.0 4,160 58%
28% 14%
1999
14,019 111 8.9 4,270
53% 32% 15%
2000
14,015 117 8.8 4,360
52% 29% 19%
2001 14,036 114
8.5 4,440 52%
29% 20%
2002
14,033 113 8.5 4,400
52% 31% 17%
2003 14,030 111
8.6 4,400 49%
33% 19%
2004
14,032 113 9.3 4,557
48% 39% 14%
2005 14,052 111
8.8 4,482 55%
33% 12%
2006
13,395 110 9.1 4,747
53% 28% 18%
2007 13,246 112
8.9 4,719 62%
18% 21%
2008
13,370 111 8.8 4,773
62% 18% 19%
2009 13,242 109
9.3 4,697 67%
6% 27%
2010
13.242 110 9.8 4,687
66% 13% 21%
2011
13.456 --- 9.0 4,679
64% 6% 30%
2012
13.390 --- 9.3 4,437
60% 12% 28%
2013
---- --- ***
------- 60% 12%
28%
2014
13.422 --- ***
------- 64% 10%
26%
2015
13.422 --- ***
------- 42% 34% 25%
