Table 9
Noise Barrier Construction By State
| State | Average Height (feet) | Average Unit Cost (2004 $/Square Foot) |
|---|---|---|
| Alabama | 0 | 0 |
| Alaska | 10 | 15 |
| Arizona | 14 | 25 |
| Arkansas | 13 | 10 |
| California | 11 | 19 |
| Colorado | 10 | 19 |
| Connecticut | 16 | 13 |
| Delaware | 14 | 5 |
| District of Columbia | 0 | 0 |
| Eastern Dir. Fed. | 11 | 17 |
| Florida | 16 | 26 |
| Georgia | 13 | 14 |
| Hawaii | 11 | 30 |
| Idaho | 12 | 19 |
| Illinois | 12 | 23 |
| Indiana | 15 | 16 |
| Iowa | 13 | 13 |
| Kansas | 15 | 24 |
| Kentucky | 20 | 16 |
| Louisiana | 15 | 26 |
| Maine | 14 | 14 |
| Maryland | 19 | 30 |
| Massachusetts | 11 | 29 |
| Michigan | 12 | 28 |
| Minnesota | 16 | 15 |
| Mississippi | 0 | 0 |
| Missouri | 13 | 19 |
| Montana | 0 | 0 |
| Nebraska | 14 | 21 |
| Nevada | 12 | 17 |
| New Hampshire | 15 | 20 |
| New Jersey | 17 | 29 |
| New Mexico | 12 | 26 |
| New York | 14 | 30 |
| North Carolina | 16 | 10 |
| North Dakota | 15 | 3 |
| Ohio | 14 | 16 |
| Oklahoma | 12 | 17 |
| Oregon | 11 | 13 |
| Pennsylvania | 13 | 31 |
| Puerto Rico | 12 | 38 |
| Rhode Island | 0 | 0 |
| South Carolina | 11 | 15 |
| South Dakota | 0 | 0 |
| Tennessee | 15 | 19 |
| Texas | 12 | 22 |
| Utah | 12 | 8 |
| Vermont | 7 | 22 |
| Virginia | 15 | 20 |
| Washington | 11 | 17 |
| West Virginia | 12 | 15 |
| Wisconsin | 17 | 20 |
| Wyoming | 8 | 16 |
