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Summary of Noise Barriers Constructed by December 31, 2010

Total Noise Barrier Area by Material Type

Single Material Barriers
Material Square Feet
(Thousands)
Concrete/Precast 94,871
Block 38,402
Concrete/Unspecified 9,003
Wood/Post & Plank 5,994
Concrete/Cast-in-place 5,942
Metal/Unspecified 4,992
Berm Only 3,884
Wood/Glue Laminated 3,704
Absorptive 3,629
Wood/Unspecified 3,060
Other 1,729
Concrete/Pre-Cast 1,295
Brick 1,279
Precast Concrete 924
Concrete/ Precast 763
Conrete/Unspecified 565
Conc/Precast 384
Concrete Precast 207
Conrete/Precast 183
Other (QPL-69, HDPE) 152
Concrete/Block 80
Concrete/Precast/Formliner 65
Concrete/Cast in Place 48
Composite/Plastic 25
Clear/Paraglass 25
Other (Concrete posts,Recycled Plastic Panels) 23
Other (Polyethylene) 17
Other (Manufactured Product) 17
Wood (Unspecified) 15
Transparent 10
Cast in place 6
Other (Modular absorptive) 5
Other (Plexiglass) 4

Combination Barriers
Material Square Feet
(Thousands)
Comb/Wood/Concrete 7,143
Comb/Berm/Wood 3,022
Comb/Concrete/Block 2,424
Comb/Metal/Concrete 2,335
Comb/Berm/Concrete 2,073
Comb/Other 1,935
Comb/Berm/Metal 1,435
Comb/Concrete/Brick 634
Comb/Berm/Block 622
Comb/Wood/Metal 464
Comb/Concrete/Precast/Other(Acrylic) 450
Comb/Berm/Wood/Concrete 348
Comb/Wood/Block 283
Comb/Berm/Wood/Metal 171
Comb/Concrete/Other 138
Comb/Metal/ Concrete 36
Comb/Block/Brick 8

Table 2 lists the distribution of barriers by type of material. Earth (berm), masonry block (block), brick, concrete, metal, wood, other materials (e.g., polyurethane) and combinations of materials have all been used to construct barriers.

Updated: 07/10/2012
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