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Appendix ATTACHMENT SCOPE OF WORK CITY OF SANTA ANA REQUEST FOR PROPOSALS FOR SR-55 /RITCHEY WATER IMPROVEMENT PROJECT CONSTRUCTION MANAGEMENT AND INSPECTION SERVICES RFP NO.21-066 INTRODUCTIONBACKGROUND The Orange County Transportation Authority (OCTA) is the lead agency for the proposed State Route 55 (SR-55) freeway -widening project from Interstate 405 to Interstate I-5. The project will add general purpose and high -occupancy vehicle lanes in each direction between I-405 and I-5, and will also add auxiliary lanes between interchanges to reduce traffic congestion and improve mobility. Additionally, the project will add sidewalks, ADA ramps raised medians and vehicle lanes along MacArthur Boulevard, Dyer Road, Edinger Avenue and McFadden Avenue. The project will improve safety and mobility for pedestrians and reduce traffic congestion at several major arterials crossing the SR-55. Additionally, the City of Santa Ana's existing water infrastructure, consisting of a 16" pipeline in Ritchey Street, 24" and 12" pipelines crossing the SR 55 freeway and a pressure regulating station near Warner Avenue, must be relocated and reconstructed to accommodate the SR-55 widening. The proposed utility relocations are ready for advertising of construction (Attachment 4) with the goal of beginning construction at fall 2021 to remain on schedule with the freeway -widening work. The work involved to relocate the utilities is quite extensive and requires obtaining easements and performing jack and bore construction techniques below the freeway. Orange County Transportation Authority (OCTA) is responsible for the design and implementation of the proposed Caltrans State Route 55 widening project. All coordination with the proposed Route 55 widening project shall be done with OCTA. All permit requirements for work within State Route 55 right-of-way shall be done in accordance with the Caltrans permit and the Caltrans inspector. The additional freeway lanes being added impact the City of Santa Ana's existing pressure reducing station and associated piping. The scope of work has been divided in three components; the relocation of the water main within Ritchey Street, the relocation of the pressure reducing station and the relocation of the connecting piping that currently crosses the freeway. The scope of each project is further defined below: Ritchey St Water Main Relocation, Project No. 19-6438: This work is for the relocation of the existing 16-inch water main in Ritchey Street. Approximately 260 feet will be new 8-inch DR14 C900 PVC pipe connecting to the City of Santa Ana RFP 21-066 Page Al-1