Item 18 - Traffic Signal Installation at Segerstrom Avenue and Rosewood Avenue

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CITY OF SANTA ANA SPECIFICATIONS PROJECT NO.: 25-6030 TRAFFIC SIGNAL INSTALLATION AT SEGERSTROM AVENUE AND ROSEWOOD AVENUE The Contractor shall perform leakage and pressure tests of the bypass pumping discharge piping suing clean water prior to the actual operation. The Water Resources Division shall be given 24 hours notice prior to testing. The Contractor shall be required to flow monitor for a two week period to assist in sizing the pumps necessary for the sewer work and shall be considered included as part of the work. The Contractor shall prepare, with the vendor, a flow monitoring map for key manholes that will provide adequate data for the work subject to review and approval from the Water Resources Division. Flow monitoring shall capture accurate instantaneous depth, velocity and flow data in 15-minute increments or less, or as otherwise approved by the Water Resources Division. The Contractor shall prepare with the vendor a specific, detailed description of the proposed pumping system and submit it and the vendor's references to the City. The Contractor shall submit to the City detailed descriptions outlining all provisions and precautions to be taken by the Contractor regarding handling of existing sewage flows. The submittal must be specific and complete, including such items as schedules, capacities of equipment, materials, and all other incidental protection of the access and bypass pumping locations from damage due to the discharge flows. The submittal shall include but not be limited to the following: 1. Sewer plugging method and types of plug. 2. Number, size, material, location and method of installation of suction piping. 3. Number, size, material, location and method of installation of discharge piping. 4. Bypass pump sizes, capacity, number of each size to be on -site and power requirements. 5. Calculations of static lift, friction losses, and flow velocity (pump curves showing pump operating range shall be submitted). 6. Standby power generator size. 7. Method of protecting discharge manholes or structures from erosion and damage. 8. Thrust block sizes and restraining lengths of pipes and locations (if necessary). 9. Method of noise control for each pump and/or generator. 10. Any temporary pipe supports and anchoring requirements. 11. Design plans and computations for access to bypass pumping locations indicated on the drawings. 12. Calculations for selection of bypass pumping pipe size. •e