Noise Barrier Graphs
![Graph 1 - See table below](graph01.png)
Graph 1 - Single-Material Noise Barriers by Material Type. Noise Barriers Constructed 1963 - 2013
Primary Construction Material |
Area Sq Ft (Thousands) |
Concretes |
118,564 |
Block |
42,094 |
Wood |
12,693 |
Other |
12,442 |
Metal |
6,122 |
Berm |
3,964 |
Brick |
1,279 |
![Graph 2 - See table below](graph02.png)
Graph 2 - Noise Barrier Construction by Year - Linear Miles in 2013 dollars
Year |
Current Year Cost ($Millions) |
Linear Miles |
1993 |
$167 |
87 |
1994 |
$170 |
92 |
1995 |
$229 |
123 |
1996 |
$92 |
54 |
1997 |
$214 |
100 |
1998 |
$286 |
140 |
1999 |
$140 |
53 |
2000 |
$195 |
88 |
2001 |
$335 |
124 |
2002 |
$350 |
95 |
2003 |
$225 |
96 |
2004 |
$245 |
135 |
2005 |
$220 |
88 |
2006 |
$289 |
122 |
2007 |
$310 |
107 |
2008 |
$122 |
58 |
2009 |
$239 |
97 |
2010 |
$310 |
119 |
2011 |
$175 |
70 |
2012 |
$155 |
55 |
2013 |
$161 |
82 |
![Graph 3 - See table below](graph03.png)
Graph 3 - Average Cost per Square Foot. Noise Barriers Constructed 1972 - 2013
Year |
Current Total Cost (summed) |
Total Area Built (summed) |
Average Unit Cost (calculated) |
Average Unit Cost (reported) |
1963 |
No costs Reported |
1,260 |
N/A |
No costs Reported |
1970 |
No costs Reported |
17,500 |
N/A |
No costs Reported |
1972 |
$2,554,925 |
79,965 |
$32 |
$24 |
1973 |
$2,449,854 |
103,383 |
$24 |
$23 |
1974 |
$23,174,317 |
603,315 |
$38 |
$26 |
1975 |
$24,449,775 |
1,202,777 |
$20 |
$24 |
1976 |
$5,013,550 |
297,554 |
$17 |
$19 |
1977 |
$31,723,284 |
1,032,340 |
$31 |
$29 |
1978 |
$96,264,193 |
3,642,267 |
$26 |
$28 |
1979 |
$80,475,250 |
3,355,560 |
$24 |
$34 |
1980 |
$63,020,156 |
2,884,906 |
$22 |
$25 |
1981 |
$64,940,585 |
2,047,558 |
$32 |
$36 |
1982 |
$45,697,798 |
1,682,454 |
$27 |
$29 |
1983 |
$72,212,681 |
2,467,421 |
$29 |
$30 |
1984 |
$85,727,838 |
2,779,912 |
$31 |
$36 |
1985 |
$81,620,722 |
2,786,521 |
$29 |
$34 |
1986 |
$147,234,189 |
4,101,561 |
$36 |
$37 |
1987 |
$95,936,362 |
3,532,105 |
$27 |
$36 |
1988 |
$227,859,405 |
6,985,226 |
$33 |
$34 |
1989 |
$210,702,393 |
7,181,795 |
$29 |
$30 |
1990 |
$134,126,679 |
5,132,298 |
$26 |
$28 |
1991 |
$204,080,580 |
7,770,016 |
$26 |
$28 |
1992 |
$231,921,498 |
9,288,563 |
$25 |
$25 |
1993 |
$167,295,459 |
6,390,588 |
$26 |
$27 |
1994 |
$170,326,044 |
6,832,652 |
$25 |
$28 |
1995 |
$229,062,495 |
8,984,594 |
$25 |
$28 |
1996 |
$91,586,330 |
4,220,910 |
$22 |
$29 |
1997 |
$214,261,577 |
8,132,027 |
$26 |
$30 |
1998 |
$286,440,761 |
11,622,034 |
$25 |
$32 |
1999 |
$140,206,211 |
4,084,444 |
$34 |
$39 |
2000 |
$195,395,579 |
6,914,276 |
$28 |
$32 |
2001 |
$335,366,189 |
9,399,417 |
$36 |
$44 |
2002 |
$349,887,813 |
7,596,471 |
$46 |
$43 |
2003 |
$224,965,107 |
7,952,491 |
$28 |
$33 |
2004 |
$245,214,906 |
9,899,052 |
$25 |
$34 |
2005 |
$219,469,193 |
7,059,095 |
$31 |
$35 |
2006 |
$289,073,606 |
9,675,971 |
$30 |
$34 |
2007 |
$309,787,378 |
8,568,400 |
$36 |
$45 |
2008 |
$121,687,185 |
4,160,073 |
$29 |
$33 |
2009 |
$238,771,067 |
7,611,231 |
$31 |
$36 |
2010 |
$310,171,054 |
9,317,520 |
$33 |
$35 |
2011 |
$174,932,526 |
5,756,136 |
$30 |
$48 |
2012 |
$155,243,240 |
4,441,627 |
$35 |
$37 |
2013 |
$160,950,528 |
6,218,387 |
$26 |
$31 |
Average |
|
|
$29 |
$32 |
![Graph 4 - See table below](graph04.png)
Graph 4 - Noise Barrier Type as a Percentage of All Noise Barriers Constructed by Year. Noise Barriers Constructed 1963 - 2013
Year |
Type I Feet |
Type II Feet |
Other Feet |
Total Feet |
Total Miles |
Type I % |
Type II % |
Other % |
1963 |
180 |
- |
- |
180 |
0.03 |
100 |
0 |
0 |
1970 |
3,500 |
- |
- |
3500 |
0.66 |
100 |
0 |
0 |
1972 |
6,959 |
- |
3,693 |
10652 |
2.02 |
65 |
0 |
35 |
1973 |
7,167 |
1,578 |
1,056 |
9801 |
1.86 |
73 |
16 |
11 |
1974 |
7,901 |
19,489 |
26,896 |
54286 |
10.28 |
15 |
36 |
50 |
1975 |
93,963 |
11,371 |
3,693 |
109027 |
20.65 |
86 |
10 |
3 |
1976 |
27,088 |
1,486 |
- |
28574 |
5.41 |
95 |
5 |
0 |
1977 |
22,096 |
31,698 |
21,116 |
74910 |
14.19 |
29 |
42 |
28 |
1978 |
150,181 |
67,035 |
53,842 |
271058 |
51.34 |
55 |
25 |
20 |
1979 |
155,177 |
99,453 |
24,282 |
278912 |
52.82 |
56 |
36 |
9 |
1980 |
185,755 |
35,201 |
3,693 |
224649 |
42.55 |
83 |
16 |
2 |
1981 |
89,857 |
93,976 |
- |
183833 |
34.82 |
49 |
51 |
0 |
1982 |
98,172 |
34,201 |
- |
132373 |
25.07 |
74 |
26 |
0 |
1983 |
137,527 |
45,116 |
13,281 |
195924 |
37.11 |
70 |
23 |
7 |
1984 |
184,881 |
66,606 |
- |
251487 |
47.63 |
74 |
26 |
0 |
1985 |
155,184 |
77,630 |
- |
232814 |
44.09 |
67 |
33 |
0 |
1986 |
210,867 |
128,030 |
- |
338897 |
64.19 |
62 |
38 |
0 |
1987 |
198,528 |
82,482 |
- |
281010 |
53.22 |
71 |
29 |
0 |
1988 |
435,139 |
50,265 |
73,722 |
559126 |
105.90 |
78 |
9 |
13 |
1989 |
454,618 |
69,039 |
4,122 |
527779 |
99.96 |
86 |
13 |
1 |
1990 |
226,906 |
98,276 |
2,280 |
327462 |
62.02 |
69 |
30 |
1 |
1991 |
395,868 |
97,812 |
13,944 |
507624 |
96.14 |
78 |
19 |
3 |
1992 |
524,199 |
95,888 |
53,859 |
673946 |
127.64 |
78 |
14 |
8 |
1993 |
342,726 |
114,277 |
- |
457003 |
86.55 |
75 |
25 |
0 |
1994 |
269,307 |
87,604 |
127,041 |
483952 |
91.66 |
56 |
18 |
26 |
1995 |
510,814 |
126,155 |
12,979 |
649948 |
123.10 |
79 |
19 |
2 |
1996 |
197,751 |
71,823 |
14,886 |
284460 |
53.88 |
70 |
25 |
5 |
1997 |
348,004 |
167,315 |
13,842 |
529161 |
100.22 |
66 |
32 |
3 |
1998 |
609,431 |
117,002 |
11,883 |
738316 |
139.83 |
83 |
16 |
2 |
1999 |
150,704 |
102,746 |
29,891 |
283341 |
53.66 |
53 |
36 |
11 |
2000 |
377,213 |
58,181 |
28,099 |
463493 |
87.78 |
81 |
13 |
6 |
2001 |
438,028 |
97,505 |
118,944 |
654477 |
123.95 |
67 |
15 |
18 |
2002 |
306,908 |
68,985 |
125,144 |
501037 |
94.89 |
61 |
14 |
25 |
2003 |
430,158 |
26,562 |
51,530 |
508250 |
96.26 |
85 |
5 |
10 |
2004 |
560,411 |
73,475 |
79,523 |
713409 |
135.12 |
79 |
10 |
11 |
2005 |
288,648 |
53,514 |
121,143 |
463305 |
87.75 |
62 |
12 |
26 |
2006 |
459,294 |
65,731 |
121,793 |
646818 |
122.50 |
71 |
10 |
19 |
2007 |
316,598 |
100,067 |
147,928 |
564593 |
106.93 |
56 |
18 |
26 |
2008 |
229,867 |
13,775 |
64,864 |
308506 |
58.43 |
75 |
4 |
21 |
2009 |
376,822 |
29,425 |
107,164 |
513411 |
97.24 |
73 |
6 |
21 |
2010 |
516,432 |
52,059 |
61,522 |
630013 |
119.32 |
82 |
8 |
10 |
2011 |
321,524 |
34,097 |
13,314 |
368935 |
69.87 |
87 |
9 |
4 |
2012 |
255,096 |
29,279 |
6,000 |
290375 |
55.00 |
88 |
10 |
2 |
2013 |
409,166 |
21,907 |
2,260 |
433333 |
82.07 |
94 |
5 |
1 |
Total Ft |
11,486,615 |
2,718,116 |
1,559,229 |
|
|
|
|
|
Total M |
2,175.50 |
514.79 |
295.31 |
|
|
|
|
|
*Barriers listed as Type I or Type II with another designation such as O, S, or T, were classified as Others
![Graph 5 - See table below](graph05.png)
Graph 5 - Linear Miles of Noise Barriers Constructed by Height. Barriers Constructed 1965 through 2013
Average Height (feet) |
Linear Miles |
% of Total |
< 6 feet |
34 |
1% |
6 - 8 feet |
227 |
7% |
9 - 11 feet |
467 |
15% |
12 - 14 feet |
935 |
31% |
15 - 17 feet |
751 |
25% |
18 - 20 feet |
413 |
14% |
> 20 feet |
201 |
7% |
Unknown |
15 |
0% |
Total |
3,043 |
100% |
![Graph 6 - See table below](graph06.png)
Graph 6 - Noise Barriers Constructed by Surface Treatment. Noise Barriers Constructed 2011 - 2013
Surface Texture |
2011 |
2012 |
2013 |
Total Constructed by Type |
Absorptive |
71 |
47 |
74 |
192 |
Reflective |
92 |
73 |
80 |
245 |
Not Reported |
42 |
34 |
134 |
210 |
![Graph 7 - See table below](graph07.png)
Graph 7 - Average Noise Reduction in dB(A) by Surface Treatment. Noise Barriers Constructed 2011 - 2013
Surface Texture |
2011 Average Noise Reduction |
2012 Average Noise Reduction |
2013 Average Noise Reduction |
Average Noise Reduction by Type |
Absorptive |
7.5 |
7.54 |
6.73 |
7.26 |
Reflective |
7.36 |
7.95 |
7.2 |
7.50 |
Not Reported |
7 |
6.77 |
6.42 |
6.73 |
![Graph 8 - See table below](graph08.png)
Graph 8 - Noise Barrier Foundation Type as a Percent of all Noise Barriers Constructed. Noise Barriers Constructed 2011 - 2013
Foundations |
2011 Number |
2011 |
2012 Number |
2012 |
2013 Number |
2013 |
2011-2013 Number |
2011-2013 |
Ground Mounted |
171 |
83% |
133 |
86% |
234 |
81% |
538 |
83% |
Ground Mounted, On Structure |
14 |
7% |
9 |
6% |
27 |
9% |
50 |
8% |
On Structure |
19 |
9% |
11 |
7% |
27 |
9% |
57 |
9% |
Not Reported |
1 |
|
1 |
1% |
0 |
|
2 |
0% |
Total |
205 |
100% |
154 |
100% |
288 |
100% |
647 |
100% |
![Graph 9 - See table below](graph09.png)
Graph 9 - Activity Categories. Noise Barriers Constructed 2011 - 2013
NAC Category |
2011 |
2012 |
2013 |
Total |
A |
0 |
0 |
0 |
0 |
B |
202 |
148 |
281 |
631 |
C |
10 |
19 |
14 |
43 |
D |
1 |
0 |
0 |
1 |
E |
3 |
1 |
33 |
37 |
No criteria selected |
1 |
1 |
2 |
4 |
Total |
205 |
154 |
288 |
|
![Graph 10 - See table below](graph10.png)
Graph 10 - Type II Noise Barrier Construction by State. Noise Barriers Constructed 1963 - 2013
State |
Square Feet |
Number of Type II Barriers |
Alabama |
AL |
|
|
Alaska |
AK |
|
|
Arizona |
AZ |
5,589 |
1 |
Arkansas |
AR |
|
|
California |
CA |
13,454,291 |
309 |
Colorado |
CO |
960,750 |
26 |
Connecticut |
CT |
1,424,369 |
34 |
Delaware |
DE |
|
|
District of Columbia |
DC |
|
|
Florida |
FL |
11,020 |
1 |
Georgia |
GA |
1,746,133 |
39 |
Hawaii |
HI |
|
|
Idaho |
ID |
|
|
Illinois |
IL |
|
|
Indiana |
IN |
|
|
Iowa |
IA |
69,004 |
2 |
Kansas |
KS |
|
|
Kentucky |
KY |
11,400 |
1 |
Louisiana |
LA |
133,024 |
2 |
Maine |
ME |
19,397 |
1 |
Maryland |
MD |
5,307,113 |
71 |
Massachusetts |
MA |
883,926 |
22 |
Michigan |
MI |
1,800,180 |
32 |
Minnesota |
MN |
|
|
Mississippi |
MS |
|
|
Missouri |
MO |
27,750 |
1 |
Montana |
MT |
|
|
Nebraska |
NE |
|
|
Nevada |
NV |
486,852 |
2 |
New Hampshire |
NH |
|
|
New Jersey |
NJ |
2,898,261 |
10 |
New Mexico |
NM |
|
|
New York |
NY |
1,795,081 |
60 |
North Carolina |
NC |
|
|
North Dakota |
ND |
|
|
Ohio |
OH |
3,741,816 |
32 |
Oklahoma |
OK |
|
|
Oregon |
OR |
180,292 |
6 |
Pennsylvania |
PA |
857,724 |
48 |
Puerto Rico |
PR |
242,977 |
11 |
Rhode Island |
RI |
|
|
South Carolina |
SC |
|
|
South Dakota |
SD |
55,595 |
2 |
Tennessee |
TN |
106,195 |
3 |
Texas |
TX |
|
|
Utah |
UT |
1,023,611 |
40 |
Vermont |
VT |
|
|
Virginia |
VA |
|
|
Washington |
WA |
612,052 |
28 |
West Virginia |
WV |
|
|
Wisconsin |
WI |
1,087,156 |
28 |
Wyoming |
WY |
7,688 |
1 |