75C - PH UNDEREGROUND UTILITY DISTRICT

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October 16", 2018 UUD No. 37 ENGINEER'S REPORT UNDERGROUND UTILITY DISTRICT NO. 37 WARNER AVENUE FROM MAIN STREET TO GRAND AVENUE An underground utility district is a boundary within which poles, overhead and wires and associated overhead structures are prohibited. The procedure for establishing an underground utility district is defined in Chapter Santa Ana Municipal Code (SAMC) Chapter 37, The Santa Ana Municipal Code Section 37-3 requires the filing of an Engineer's Report prior to adoption of an Underground Utility District. This document constitutes the Engineer's Report and its format is in accordance with the aforementioned code sections. STATEMENT OF THE ISSUE Based on the current environmental documents for Warner Avenue Improvements project bounded by Main Street and Grand Avenue, one of the goals of the project is to underground existing overhead utility and related poles since existing overhead utility poles within public right-of-way are obstructing pedestrian access along Warner Avenue and also impedes visibility which affects traffic safety. An underground utility district is proposed to be established along Warner Avenue between Main Street and Grand Avenue (Exhibit A — Underground Utility District No. 37 Boundaries) for the purpose of placing all overhead utilities within the district boundaries underground. Significant community benefits can be achieved from undergrounding overhead utilities including improving public safety, enhancing street -view aesthetics, reducing maintenance for cost savings, and providing more reliable utility services to customers. DESCRIPTION OF THE WORK The Warner Avenue Improvements Project will secure the necessary right-of-way to widen the roadway and construct the underground structures. The existing overhead electric, telephone, cable TV, and street light wires servicing residential and commercial properties along Warner Avenue shall be removed and placed in the underground substructures. All future electrical and communication facilities located within district shall be located in the underground substructure. The improvements for these underground works will be designed by Southern California Edison (SCE), AT&T Inc., Charter Communications Inc., Crown Castle International Corp., Mpower (TPx) Communications Corp., and Verizon Communications Inc. The utility companies will also be responsible for coordinating and constructing the necessary improvements. The City will inspect the work to ensure conformance to City standards and special provisions where applicable. Existing overhead connections to adjacent parcels must be included in the project, providing a service lateral to individual properties. To minimize the impact during regular business hours, night work will be done for parts of the work. The utility underground construction shall coincide with the planned street improvements to minimize impacts to the community and cost. SCHEDULE AND COST OF THE WORK The underground process will be constructed into two phases to match with the Warner Avenue Improvements Project phasing plan. Phase 1, which will underground all overhead utilities from Main Street to Oak Street, is planned for construction in 2021. Phase 2, which will underground overhead utilities from Oak Street to Grand Avenue, is planned for construction in 2025. Based on the coordination effort with the impact utility companies, the Page i of 3 EXHIBIT 1 75C-3