Table
4-52: Highway Noise Barrier
Construction
(Miles)
Excel | CSV
TOTAL
length |
6 |
328 |
54 |
45 |
65 |
54 |
106 |
103 |
64 |
99 |
(R) 143 |
88 |
89 |
(R)
133 |
54 |
(R)
102 |
(R)
140 |
(R)
54 |
(R)
82 |
(R)
132 |
78 |
89 |
105 |
2,205 |
Type I barriersa |
d6 |
210 |
39 |
30 |
40 |
35 |
83 |
88 |
44 |
78 |
114 |
63 |
47 |
(R) 95 |
37 |
(R) 70 |
(R) 116 |
(R) 31 |
(R) 67 |
(R) 95 |
63 |
78 |
88 |
1,613 |
Type
II barriersb |
0 |
114 |
14 |
14 |
24 |
16 |
8 |
8 |
19 |
18 |
18 |
21 |
16 |
32 |
15 |
31 |
23 |
(R) 18 |
(R) 11 |
(R) 18 |
13 |
4 |
14 |
471 |
All
other typesc |
N |
4 |
1 |
1 |
1 |
3 |
15 |
7 |
1 |
3 |
(R) 11 |
4 |
26 |
(R) 6 |
2 |
(R) 1 |
1 |
(R) 5 |
(R) 4 |
(R) 19 |
2 |
7 |
3 |
121 |
Cost
(2004 $ millions) |
0 |
329 |
67 |
57 |
106 |
72 |
168 |
163 |
108 |
176 |
228 |
144 |
135 |
203 |
79 |
180 |
242 |
110 |
147 |
207 |
190 |
171 |
159 |
3,442 |
KEY: N = data do not exist; R = revised.
a A Type I barrier is built on a new highway
project or a physically altered existing highway.
b A Type II barrier is built to abate noise along an existing
highway (often referred to as retrofit abatement) and is not mandatory.
c All other types of
barriers are nonfederally funded.
d Have not been
assigned a year of construction or a cost.
NOTES
Forty-five
miles of barriers, while assigned a year of construction, cannot be assigned
a cost.
California
did not provide data for the years 1999 - 2004 and therefore these years may
not be comparable with previous years.
SOURCE
U.S. Department of Transportation, Federal Highway
Administration, Office of Environment and Planning, Highway
Traffic Noise Barrier Construction Trends (Washington,
DC: May 2006), tables 1 and 3.
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