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Noise Barrier Graphs

Heights

Linear Miles and Unit Costs of Barriers by Height

(1963-2022)

This graph shows barriers unit costs by height, as well as total linear miles of each height for barriers built from 1963 to 2022. Total miles are shown on the left-hand y-axis; unit costs are shown on the right-hand y-axis. Sixteen feet was the most commonly built height. Costs peaked at 9 feet and 18 feet, after which they show a decrease in unit costs. Barriers taller than 20 feet are relatively uncommon.
Linear Miles and Unit Costs of All Barriers by Height (1963-2022)
Average Unit Cost Height (feet) Length (feet) Length (miles)
$42.83 ≤ 7 752,239 142
$40.32 8 863,723 164
$48.37 9 306,844 58
$41.21 10 1,860,827 352
$45.11 11 809,938 153
$45.19 12 2,041,540 387
$41.53 13 1,867,562 354
$41.23 14 2,374,366 450
$40.11 15 1,516,086 287
$45.75 16 2,487,564 471
$42.61 17 764,804 145
$44.62 18 999,012 189
$45.37 19 564,582 107
$39.63 20 1,438,682 272
$32.81 21 297,982 56
$39.55 22 617,701 117
$34.90 23 277,852 53
$39.68 24 176,549 33
$33.14 ≥ 25 302,818 57
No data Unreported No data No data
$41.26 20,320,670       3,849
This graph shows barriers unit costs by height, as well as total linear miles of each height for berms built from 1963 to 2022. Total miles are shown on the left-hand y-axis; unit costs are shown on the right-hand y-axis. Ten feet was the most commonly built height. Costs peaked at 18 feet, after which they show a decrease in unit costs. Berm data is more limited than comparable Wall data.
Linear Miles and Unit Costs of Berms Only by Height (1963-2022)
Average Unit Cost Height (feet) Length (feet) Length (miles)
$18.95 ≤ 7 76,895 15
$12.88 8 57,305 11
$24.87 9 21,873 4
$17.97 10 175,834 33
$42.95 11 16,586 3
$18.62 12 50,254 10
$37.16 13 73,539 14
$13.56 14 25,381 5
$18.06 15 40,434 8
$29.58 16 88,901 17
$36.63 17 5,873 1
$14.69 18 8,057 2
  19 - -
$29.02 20 69,420 13
  21 - -
$13.22 22 6,193 1
$22.35 23 19,945 4
$2.98 24 4,595 1
$21.35 ≥ 25 38,514 7
$22.05 - 779,599 148
This graph shows barriers unit costs by height, as well as total linear miles of each height for barriers built from 1963 to 2022. Total miles are shown on the left-hand y-axis; unit costs are shown on the right-hand y-axis. Sixteen feet was the most commonly built height. Costs peaked at 19 feet, after which they show a decrease in unit costs.
Linear Miles and Unit Costs of Walls Only by Height (1963-2022)
Average Unit Cost Height (feet) Length (feet) Length (miles)
$46.52 ≤ 7 675,344 128
$42.89 8 806,418 153
$50.30 9 284,971 54
$43.71 10 1,684,993 319
$45.17 11 793,352 150
$46.01 12 1,991,286 377
$42.98 13 1,794,023 340
$41.42 14 2,348,985 445
$41.00 15 1,475,652 279
$46.37 16 2,398,663 454
$42.66 17 758,931 144
$45.11 18 990,955 188
$45.37 19 564,582 107
$40.05 20 1,369,262 259
$32.81 21 297,982 56
$39.99 22 611,508 116
$36.15 23 257,907 49
$41.38 24 171,954 33
$34.52 ≥ 25 264,304 50
$42.34 19,541,071 3,701
Updated: 11/3/2023
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