Appendix A Natural Environment Study (Minimal Impacts)

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Natural Environment Study (Minimal Impacts) 1.1.1.2. NEED The existing Fairview Street bridge has insufficient safety barriers and capacity to handle existing and projected traffic levels in the Project Area and is operating with the following deficiencies: • No sidewalks, bike lanes, center median or barrier, or lighting • Congestion on and around the existing bridge due to high traffic demands and a limited number of lanes relative to areas north and south of the bridge 1.2. Project Description The Project includes widening Fairview Street between 9th Street and 16th Street, including replacing the Fairview Street bridge crossing over the Santa Ana River (refer to Figure 1 for the Project Location). The Project would widen Fairview Street from two lanes in each direction to three lanes in each direction. 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. Figure 2 shows the location of each Project component as well as the Biological Study Area (BSA) established to identify potential Project effects on specific sensitive biological resources and encompasses the Project direct impact areas (temporary and permanent) as well as a buffer area to account for any potential proximity effects (e.g., noise, vibration, dust, or lighting) that may occur outside the direct impact areas. 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 Project would acquire partial 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 in Figure 2. An existing 12-inch water line and a bank of 12 phone conduits cross the Santa Ana River, suspended under the deck of the existing bridge. These utilities would need to be temporarily relocated during construction and then permanently relocated to the new bridge. ................................................................................................................................................ . 2 Fairview Street Improvements from 9th Street to 16th Street and Bridge Replacement Project