Appendix A Noise Study Report - Laserfiche WebLink

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Chapter 6. Existing Noise Environment 6.1. Existing Land Uses Developed and undeveloped land uses in the project vicinity were identified through land use maps, aerial photography, and site inspection. Receptors were identified in each land use category. Existing land uses in the project area include single-family and multifamily residences, a medical office, a park (Fairview Triangle Habitat Restoration Park), a multi -use trail, vacant land, and commercial and light industrial uses. Existing land uses in the project area and surrounding vicinity are described in further detail as follows: • East of Fairview Street and South of the Santa Ana River (Receptors R-2 through R-7, R-11, R-12, R-13, R-17, R-18, R-24 through R-30, R-37 through R-45, R-48 through R-50, and R-53 through R-67): Land uses in this area include single-family and multifamily residences, commercial uses, and vacant land. Land uses in this area range from 3 ft higher in elevation than Fairview Street to 7 ft lower in elevation than Fairview Street. Currently, 4 ft to 13.5 ft high existing walls along the private property lines shield the single-family residences. The single-family residences were evaluated under Activity Category B, which has an exterior NAC of 67 dBA Leq. The commercial uses and vacant land were evaluated under Activity Categories E and F, respectively, for reporting purposes. • West of Fairview Street and South of the Santa Ana River (Receptors R-1, R- 8 through R-10, R-14, R-15, R-16, R-19 through R-23, R-31 through R-36, R- 46, R-47, R-51, and R-52): Land uses in this area include single-family and multifamily residences, a medical office, a park, a multi -use trail, and office uses. Land uses in this area range from 2 ft higher in elevation than Fairview Street to 5 ft lower in elevation than Fairview Street. Currently, 2.7 ft to 9.3 ft high existing walls along the private property lines shield the single-family and multifamily residences. The single-family and multifamily residences were evaluated under Activity Category B, which has an exterior NAC of 67 dBA Leq. The park at the southwest corner of Fairview Street and the Santa Ana River was evaluated under Activity Category C, which has an exterior NAC of 67 dBA Leq. The multi -use trail has no outdoor frequent human use areas and was classified under Activity Category C for reporting purposes. The office uses with no outdoor frequent human use areas were classified under Activity Category E for reporting purposes. Fairview Street Improvements from 9th Street to 16th Street 31 and Bridge Replacement Project Noise Study Report