Table 9
Noise Barrier Construction Material Area by Year
| Year | Concrete | Block | Wood | Metal | Berm | Brick | Combination | Absorptive |
|---|---|---|---|---|---|---|---|---|
| 1963-1996 | 3,805 | 2,648 | 1,103 | 225 | 386 | 102 | 1,364 | 141 |
| 1997 | 566 | 208 | 1 | 0 | 4 | 0 | 52 | 0 |
| 1998 | 913 | 107 | 14 | 23 | 15 | 0 | 67 | 24 |
| 1999 | 319 | 11 | 22 | 6 | 5 | 0 | 52 | 5 |
| 2000 | 499 | 37 | 35 | 0 | 11 | 0 | 54 | 7 |
| 2001 | 725 | 60 | 34 | 80 | 0 | 12 | 32 | 5 |
| 2002 | 427 | 105 | 51 | 18 | 5 | 1 | 17 | 38 |
| 2003 | 515 | 160 | 2 | 4 | 1 | 0 | 78 | 28 |
| 2004 | 410 | 69 | 5 | 59 | 0 | 0 | 190 | 116 |
| 2005 | 541 | 56 | 3 | 0 | 1 | 6 | 74 | 0 |
| 2006 | 580 | 48 | 1 | 12 | 2 | 7 | 147 | 0 |
| 2007 | 607 | 16 | 0 | 34 | 1 | 0 | 85 | 0 |
| Unknown Year | 23 | 0 | 1 | 14 | 0 | 0 | 7 | 0 |
| ALL | 9,930 | 3,524 | 1,272 | 474 | 432 | 128 | 2,220 | 363 |
NOTE: Square feet of noise barriers constructed with 'Other' materials - 1,873,154
