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Summary of Noise Barriers Constructed by December 31, 2010

Type II Noise Barrier Construction by State by Total Barrier Area

State Square Feet
(Thousands)
Actual Cost
(Millions)
Cost in 2010
Dollars (Millions)
Missouri 28 0.5 0.7
Colorado 1,388 21.4 32.2
Connecticut 311 2.1 4.7
Florida 11 0.1 0.2
Georgia 1,746 26.1 30.3
Indiana 528 12.0 17.5
Iowa 69 0.7 1.2
Kentucky 11 0.7 0.8
Louisiana 133 2.2 2.4
Maine 19 0.3 0.4
Maryland 5,180 159.6 218.0
Massachusetts 381 18.0 20.0
California 12,706 203.1 354.7
Minnesota 3,105 26.0 57.1
Wyoming 8 0.1 0.1
Nevada 487 9.5 10.3
New Jersey 2,898 74.0 104.9
New York 1,729 49.1 70.0
Ohio 3,565 54.4 66.3
Oregon 180 2.5 3.8
Pennsylvania 858 46.0 51.2
Puerto Rico 243 9.8 12.1
Tennessee 106 5.8 6.1
Utah 1,024 9.1 12.3
Washington 254 12.6 13.9
Wisconsin 1,560 26.1 34.1
Michigan 1,800 48.5 71.1
 
All 40,327 820.2 1,196.5

Table 3 lists the states that have constructed at least one Type II barrier (i.e., barriers constructed for an existing highway). It should be noted that the National Highway System Designation Act of 1995 restricted Federal participation in Type II noise barriers to those projects that were approved before Novemeber 28, 1995 or are proposed along lands where land development or substantial construction predated the existence of any highway.

Updated: 07/11/2012
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