Appendix A Noise Abatement Decision Report

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ter 1. Introduction 1.3.2. Build Alternative The proposed project includes widening Fairview Street between 9th Street and 16th Street, including replacing the Fairview Street bridge crossing over the Santa Ana River. The proposed project would widen Fairview Street from two lanes in each direction to three lanes in each direction, as shown on Figures 1-1 and 1-2. The Fairview Street bridge would be replaced with a new six -lane bridge (three lanes in each direction), including a complete bridge deck with barrier rails, sidewalks, bicycle lanes, a raised median, and lighting. The proposed bridge would be expanded from approximately 52 feet (ft) to 100 ft in width, and would have the same roadway profile as the existing bridge. The eight pier walls that support the existing bridge would be removed, and four new pier walls would be constructed to support the new bridge. The proposed project would partially acquire right-of-way take from three parcels (two commercial parcels [Assessor's Parcel Numbers (APNs) 405-213-02 and 405- 213-01] and one single-family residence [APN 405-213-14]), as shown on Figure 1-2. Although not known at this time, there is the potential for one full take at the single- family residence (APN 405-213-14) if the property owner is concerned about the loss of a portion of the side yard; this will be determined during final design in consultation with the property owner. An existing 12-inch-diameter water line and a bank of 12 phone conduits are suspended under the deck of the existing bridge and span the Santa Ana River. These utilities would need to be temporarily relocated during construction, after which they would be permanently relocated to the new bridge. Water quality best management practices (BMPs) would be included to treat stormwater runoff such as a vegetated swale adjacent to Fairview Street in the Fairview Triangle rest area. Fairview Street would remain open during the construction period with two nouhbound lanes and one northbound lane, with lanes shifted to one side of the bridge while the other side is replaced. Therefore, no detours would be required for vehicles traveling along Fairview Street. Access to properties would be maintained. -------------------------------------------------------------------------------------------------------------------------------------------- Fairview Street Improvements from 9th Street to 16th Street and Bridge Replacement Project Noise Abatement Decision Report