Summary of Noise Barriers Constructed by December 31, 2010

Noise Barrier Construction Material Area by Year

Material Area
(10,000 Square Feet)
Year	Concrete	Block	Wood	Metal	Berm	Brick	Combination	Absorptive
1963-1999	5,543	2,960	1,140	253	362	102	1,515	170
2000	490	43	35	0	11	0	59	7
2001	612	57	34	80	0	12	32	5
2002	464	176	51	18	5	1	18	38
2003	564	72	2	4	3	0	77	28
2004	496	5	5	59	0	0	190	116
2005	548	6	3	0	1	6	74	0
2006	619	72	1	12	2	7	147	0
2007	667	36	0	34	1	0	85	0
2008	252	72	0	18	0	0	21	0
2009	546	72	0	0	3	0	62	0
2010	498	161	4	7	1	0	64	0
Unknown	23	0	1	14	0	0	7	0

NOTE: Square feet of noise barriers constructed with 'Other' materials - 1,946,829