|
Chapter 3. Preliminary Noise Abatement Decision
<br />Table 3.1: Summary of Abatement Key Information for the Build Alternative
<br />Noise
<br />Barrier
<br />No.
<br />Noise
<br />Barrier
<br />Location
<br />Height
<br />(ft)
<br />Approximate
<br />Length (ft)
<br />Noise
<br />Attenuation
<br />Level (dBA)
<br />Number of
<br />Benefited
<br />,
<br />Receptors/Units
<br />Total
<br />Reasonable
<br />2
<br />Allowance
<br />Estimated
<br />Construction
<br />Cost (Without
<br />ROW Donation'
<br />Reasonable
<br />?
<br />Estimated
<br />Construction
<br />Cost (With ROW
<br />Donation)'
<br />Reasonable
<br />?
<br />8
<br />169
<br />5
<br />1
<br />$95,000
<br />No
<br />-
<br />No
<br />10
<br />169
<br />7
<br />1
<br />$95,000
<br />$225,898
<br />No
<br />$207,758
<br />No
<br />1
<br />ROW/PL
<br />12
<br />169
<br />8
<br />1
<br />$95,000
<br />$242,676
<br />No
<br />$224,536
<br />No
<br />14
<br />169
<br />9
<br />1
<br />$95,000
<br />$261,270
<br />No
<br />$243,130
<br />No
<br />16
<br />169
<br />10
<br />1
<br />$95,000
<br />$275,138
<br />No
<br />$256,998
<br />No
<br />8
<br />129
<br />6
<br />1
<br />$95,000
<br />No
<br />-
<br />No
<br />10
<br />129
<br />8
<br />1
<br />$95,000
<br />$103,251
<br />No
<br />$86,701
<br />Yes
<br />2
<br />ROW/PL
<br />12
<br />129
<br />9
<br />1
<br />$95,000
<br />$116,218
<br />No
<br />$99,668
<br />No
<br />14
<br />129
<br />10
<br />1
<br />$95,000
<br />$129,533
<br />No
<br />$112,983
<br />No
<br />16
<br />129
<br />11
<br />1
<br />$95,000
<br />$140,126
<br />No
<br />$123,576
<br />No
<br />8
<br />113
<br />6
<br />1
<br />$95,000
<br />--
<br />No
<br />No
<br />10
<br />113
<br />7
<br />1
<br />$95,000
<br />$86,910
<br />Yes
<br />$69,880
<br />Yes
<br />3
<br />ROW/PL
<br />12
<br />113
<br />7
<br />1
<br />$95,000
<br />$98,299
<br />No
<br />$81,269
<br />Yes
<br />14
<br />113
<br />8
<br />1
<br />$95,000
<br />$110,192
<br />No
<br />$93,162
<br />Yes
<br />16
<br />113
<br />8
<br />1
<br />$95,000
<br />$119,492
<br />No
<br />$102,462
<br />No
<br />6
<br />171
<br />7
<br />2
<br />$190,000
<br />$208,301
<br />No
<br />$184,391
<br />Yes
<br />8
<br />171
<br />10
<br />2
<br />$190,000
<br />$223,396
<br />No
<br />$199,486
<br />No
<br />10
<br />171
<br />12
<br />2
<br />$190,000
<br />$237,517
<br />No
<br />$213,607
<br />No
<br />4
<br />ROW/PL
<br />12
<br />171
<br />14
<br />2
<br />$190,000
<br />$254,459
<br />No
<br />$230,549
<br />No
<br />14
<br />171
<br />15
<br />2
<br />$190,000
<br />$273,220
<br />No
<br />$249,310
<br />No
<br />16
<br />171
<br />16
<br />2
<br />$190,000
<br />$289,097
<br />No
<br />$265,187
<br />No
<br />6
<br />705
<br />6
<br />2
<br />$190,000
<br />No
<br />-
<br />No
<br />8
<br />705
<br />9
<br />3
<br />$285,000
<br />$461,186
<br />No
<br />$412,536
<br />No
<br />10
<br />705
<br />11
<br />3
<br />$285,000
<br />$520,938
<br />No
<br />$472,288
<br />No
<br />5
<br />ROW
<br />12
<br />705
<br />13
<br />5
<br />$475,000
<br />$593,082
<br />No
<br />$544,432
<br />No
<br />14
<br />705
<br />14
<br />7
<br />$665,000
<br />$669,344
<br />No
<br />$620,694
<br />Yes
<br />16
<br />705
<br />16
<br />7
<br />$665,000
<br />$736,731
<br />No
<br />$688,081
<br />No
<br />10
<br />184
<br />7
<br />1
<br />$95,000
<br />$130,841
<br />No
<br />$119,941
<br />No
<br />12
<br />184
<br />8
<br />1
<br />$95,000
<br />$149,114
<br />No
<br />$138,214
<br />No
<br />6
<br />ROW/PL
<br />14
<br />184
<br />9
<br />1
<br />$95,000
<br />$169,047
<br />No
<br />$158,147
<br />No
<br />16
<br />184
<br />10
<br />1
<br />$95,000
<br />$185,990
<br />No
<br />$175,090
<br />No
<br />Source: Compiled by LSA Associates, Inc. (2019).
<br />Number of receptors/units that are attenuated by 5 dBA or more by the modeled barrier.
<br />2 Calculated by multiplying the number of benefited receptors by $95,000 (the dollar amount per benefited receptor/unit).
<br />3 Construction cost estimate provided by WKE, Inc. (2018).
<br />4 Shaded area represents barrier heights that have been determined to be not reasonable because the barrier would not reduce noise levels by 7 dBA or more.
<br />5 Denotes the minimum wall height required to break the line of sight between the receptor and a truck exhaust stack.
<br />dBA = A -weighted decibels ft = foot/feet ROW = right-of-way
<br />26 Fairview Street Improvements from 9th Street to 16th Street and Bridge Replacement Project Noise Abatement Decision Report
<br />
|