CALIFORNIA DEPARTMENT OF TRANSPORTATION (3)

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EXHIBIT 4 SCHEDULE B PROJECT ACTIVITIES 1. General Project Description. This project will fund the reconstruction of an existing rail crossing with the Southern California Regional Rail Authority (SCCRA) Orange Line double tracks at Santa Ana Boulevard, adjacent to the Santa Ana Regional Transportation Center,with a new multimodal grade separated underpass. The reconstructed roadway will be reduced from six-lanes to four-lanes with on-street protected bikeways, sidewalks, and a pedestrian overcrossing is included that parallels the rail line. 2. Statement of Work. Base Phase: Right of Way Acquisition, Option Phase 1: Construction The project will reconstruct the existing at-grade highway-rail crossing of Santa Ana Boulevard and the Southern California Regional Rail Authority Orange Line double tracks. The project will replace the existing crossing with an underpass structure and lower the roadway beneath the rail corridor. The underpass structure will be a three span steel girder bridge on concrete columns and abutments as well as concrete retaining walls. The roadway will be reconfigured to a four-lane corridor with approximately 12- foot vehicle lanes, approximately 12-foot median,approximately 6-foot protected bikeways with an approximately 3-foot landscaped buffer, and approximately 8-foot sidewalks under two of the bridge spans.The third underpass span will be used as a pedestrian plaza with landscaping and an approximately 20-foot area set aside for a future transit corridor. Additionally,the project will construct an approximately 10-foot-wide concrete pedestrian bridge parallel to the south side of the tracks over Santa Ana Boulevard. The project includes intersection modifications. The Santiago Street intersection will be reconstructed,modify the existing traffic signal, and replacing curb ramps to meet Americans with Disabilities Act(ADA) compliance. The Logan Street intersection will be closed. The Fuller Street intersection will be upgraded to include a new traffic signal, ADA compliant curb ramps, and 6-foot-wide side connecting the intersection to the Santa Ana Regional Transportation Center. The project also involves utility improvements. A stormwater pump station will be constructed in the grade separation area. Water, sewer, natural gas, and telecommunications facilities will be relocated into a utility corridor along the southbound vehicle lanes. 4of14