Noise Barrier Graphs

Graph 1 - See table below

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

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

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

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

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

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

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

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

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

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