Table 13 - Noise Barrier Construction by State by Average Height
| State | Average Height (feet) | Average Unit Cost (2007 $/Square Foot) |
|---|---|---|
| Alabama | 0 | 0 |
| Alaska | 10 | 18 |
| Arizona | 14 | 27 |
| Arkansas | 13 | 10 |
| California | 12 | 21 |
| Colorado | 11 | 21 |
| Connecticut | 16 | 14 |
| Delaware | 14 | 6 |
| District of Columbia | 0 | 0 |
| Eastern Dir. Fed. | 11 | 18 |
| Florida | 16 | 29 |
| Georgia | 14 | 15 |
| Hawaii | 11 | 32 |
| Idaho | 12 | 20 |
| Illinois | 12 | 25 |
| Indiana | 15 | 20 |
| Iowa | 13 | 30 |
| Kansas | 15 | 25 |
| Kentucky | 18 | 21 |
| Louisiana | 14 | 31 |
| Maine | 14 | 15 |
| Maryland | 18 | 33 |
| Massachusetts | 12 | 42 |
| Michigan | 13 | 33 |
| Minnesota | 17 | 17 |
| Mississippi | 15 | 37 |
| Missouri | 13 | 21 |
| Montana | 0 | 0 |
| Nebraksa | 14 | 39 |
| Nebraska | 14 | 23 |
| Nevada | 12 | 20 |
| New Hampshire | 15 | 23 |
| New Jersey | 17 | 32 |
| New Mexico | 12 | 28 |
| New York | 14 | 37 |
| North Carolina | 16 | 11 |
| North Dakota | 14 | 5 |
| Ohio | 14 | 19 |
| Okalahoma | 14 | 38 |
| Oklahoma | 12 | 18 |
| Oregon | 11 | 15 |
| Pennsylvania | 13 | 36 |
| Puerto Rico | 12 | 42 |
| Rhode Island | 0 | 0 |
| South Carolina | 11 | 16 |
| South Dakota | 0 | 0 |
| Tennessee | 15 | 22 |
| Texas | 12 | 23 |
| Utah | 12 | 10 |
| Vermont | 7 | 24 |
| Virginia | 15 | 22 |
| Washington | 12 | 20 |
| West Virginia | 12 | 16 |
| Wisconsin | 17 | 22 |
| Wyoming | 8 | 17 |
