75B - PH ADOPT RESO FOR PR NO 15-6827

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NT MENTS INITIAL STUDY/MITIGATED NEGATIVE DECLARATION FAIRVIEW BPIOGE REVLACEM REST TO STREET BEET) PROJECT L S A MAY 2020 (9Tx STREET To ANTx STREET) L, OLEGT SANTA ANAL CALIFOPHIA 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 include partial right-of-way acquisition from two parcels (two commercial parcels [Assessor's Parcel Numbers (APNs) 405-213-02 and 405-213-01]). The proposed Project would require one full residential acquisition (a multi -family residence; APN 405-213-14), as shown in Figure 2. Full acquisition of the residential property would be required, as the proposed road widening would result in the loss of a portion of the side yard and a corner of the structure. Property acquisition is required to provide adequate line of sight (safe viewing distance) for vehicles turning onto Fairview Street from 9th Street. View obstructions taller than 2.5 ft (such as a property wall) would be removed to maintain line of sight. Access to all properties would be maintained during construction. The two commercial parcels with partial acquisitions would not require relocation or disruption to the current function of those properties. 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 be temporarily relocated during construction and then permanently relocated to the new bridge. In addition, there is the potential for relocation of one or more utility poles along the Project alignment. Water quality best management practices (BMPs) would be included to treat storm water 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 southbound 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. During construction, pedestrians and bicyclists would be detoured away from the Fairview Street bridge to the 17th Street bridge to cross the Santa Ana River by way of the Santa Ana River Trail (SART) between the hours of 9:00 a.m. and 7:00 p.m., when the gates to the SART are open and unlocked. After hours, pedestrians and bicyclists wishing to cross the Santa Ana River would be detoured to adjacent Santa Ana streets such as King Street. Construction of the proposed Project would require temporary closures of a portion of the SART for the demolition and placement of the bridge superstructure. The SART includes a Class I bike path on the eastern side and a regional riding and hiking trail on the western side. The portion of the SART affected by Project construction would need to be temporarily closed four times for approximately 8 hours each time during two summer periods for the placement of precast concrete girders. During these periods, SART users would be detoured, and signage would be provided to display the dates of the closures and to identify the detour routes. Work on the north and south sides of the bridge would be completed during separate periods so that SART users can be detoured to the trail on the opposite side of the Santa Ana River at 5th Street (refer R:\WKE1702\ISMND\Fina1 ISMND\Fairview Street Bridge Final ISMN07,65RIBM5 1-7