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Chapter 7. Future Noise Environment, Impacts, and Considered Abatement <br />7.2.1.2. Noise Barrier No. 2 <br />A 129 ft long barrier (STA 36+30 to STA 37+07) along the private property line on <br />the southbound side of Fairview Street between Civic Center Drive and 9th Street <br />was analyzed to shield Receptor R-8. Table B.1 in Appendix B shows the results of <br />the analysis. NB No. 2 was evaluated from 6 ft to 16 ft high in 2 ft increments. Figure <br />7-1 shows the location of NB No. 2. Table 7.2 lists the highest noise barrier <br />reduction, the number of benefited residences, the reasonable allowance per benefited <br />residence, and the total reasonable allowance for each barrier height. The minimum <br />feasible barrier height is 8 ft. <br />Table 7.2. Summary of Reasonableness Allowances for <br />Noise Barrier No. 2 <br />Build Alternative with Barrier' <br />E ft <br />Barrier <br />8 ft <br />Barrier <br />loft <br />Barrier <br />12 ft <br />Barrier <br />14 ft <br />Barrier <br />16 ft <br />Barrier <br />Highest Noise Barrier Reduction dB <br />4 <br />6 <br />8 <br />9 <br />10 <br />11 <br />Number of Benefited Receptors/Units <br />0 <br />1 <br />1 <br />1 <br />1 <br />1 <br />Reasonable Allowance Per Benefited <br />Rece for/Unit <br />$0 <br />$95,000 <br />$95,000 <br />$95,000 <br />$95,000 <br />$95,000 <br />Total Reasonable Allowance <br />$0 <br />$95,000 <br />$95,000 <br />$95,000 <br />$95,000 <br />$95,000 <br />Source: Compiled by LSA (2018). <br />' A NADR will be prepared to identify the noise barrier construction cost information and the noise barriers that <br />are reasonable from a cost perspective. <br />z The cost consideration in the reasonableness determination of noise abatement is based on a 2018 allowance <br />per benefited receptor/unit of $95,000. <br />dB = decibels <br />ft = foot/feet <br />NADR = Noise Abatement Decision Report <br />7.2.1.3. Noise Barrier No. 3 <br />A 113 ft long barrier (STA 38+70 to STA 39+22) along the private property line on <br />the southbound side of Fairview Street between West 9th Street and West 12th Street <br />was analyzed to shield Receptor R-14. Table B.1 in Appendix B shows the results of <br />the analysis. NB No. 3 was evaluated from 6 ft to 16 ft high in 2 ft increments. Figure <br />7-1 shows the location of NB No. 3. Table 7.3 lists the highest noise barrier <br />reduction, the number of benefited residences, the reasonable allowance per benefited <br />residence, and the total reasonable allowance for each barrier height. The minimum <br />feasible barrier height is 8 ft. <br />Fairview Street Improvements from 9th Street to 16th Street 47 <br />and Bridge Replacement Project Noise Study Report <br />