Table 8 Noise Barrier Construction by Height
| Height | Linear Length (miles) |
% of Total |
|---|---|---|
| < 6 feet | 17.2 | 0.7% |
| 6 to 8 feet | 214.6 | 8.6% |
| 9 to 11 feet | 448.1 | 17.9% |
| 12 to 14 feet | 760.7 | 30.3% |
| 15 to 17 feet | 562.9 | 22.5% |
| 18 to 20 feet | 349.8 | 14.0% |
| > 20 feet | 149.0 | 5.9% |
| All | 2,506 | 100% |
