Table 7
Noise Barrier Construction Material Area By Height

Material Area
(10,000 Square Feet)
Height	Concrete	Block	Wood	Metal	Berm	Brick	Combination	Absorptive	All Mat'ls
>=30 Feet	87	5	36	0	9	0	98	0	235
27-29 Feet	43	0	0	0	0	0	15	5	62
24-26 Feet	251	7	52	8	8	0	25	5	357
21-23 Feet	729	6	60	0	32	0	54	33	913
18-20 Feet	1,835	238	245	48	26	18	453	104	2,967
15-17 Feet	2,327	524	317	189	58	33	494	55	3,997
12-14 Feet	1,949	1,620	177	105	36	29	481	135	4,530
9-11 Feet	642	835	248	72	192	26	202	20	2,236
6-8 Feet	289	160	131	5	57	10	88	6	748
<6 Feet	13	4	2	2	9	0	1	0	31
ALL	8,164	3,399	1,267	428	428	115	1,910	363	16,075

NOTE: Square feet of noise barriers constructed with 'Other' materials - 1,811,622