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CITY OF SANTA ANA <br /> SPECIFICATIONS <br /> PROJECT NO.: 25-6030 <br /> TRAFFIC SIGNAL INSTALLATION AT SEGERSTROM AVENUE AND ROSEWOOD <br /> AVENUE <br /> Above ground bypass piping shall be high density polyethylene (HDPE) pipe, steel or <br /> aluminum pipe with grooved couplings. HDPE shall be butt welded and have a minimum <br /> wall thickness of SDR 17. For protection against damage, the bypass piping shall be <br /> protected in place by barrier or crash cushions when adjacent to traffic. All temporary <br /> connections to existing and new manholes shall be properly covered and sealed to prevent <br /> nuisance odors from escaping into the atmosphere. When the bypass piping discharges <br /> into a manhole, the discharge pipe shall extend into the manhole, ending at the elevation <br /> of the center of the trunk sewer. All valves used on the bypass system shall be open port <br /> gate,plug or ball valves. <br /> Temporary plugs shall be appropriate for the application. Plugs shall be heavy-duty <br /> inflatable type with a steel rod through plug centerline, a retaining plate and an eye-lift on <br /> both ends. Plugs shall have a flexible sealing design to compensate for any irregular <br /> interior surface of the pipe. <br /> Flow-through plugs shall be appropriate for the application and provided with the required <br /> configuration to perform the bypass. The flow-through plug shall consist of a flow-through <br /> plug and a flexible hose. The flexible hose shall be rubber coated,heavy duty,nylon hose <br /> with and enclosed steel helix coil. The flow-through plug shall attach to the flexible hose <br /> using high torque, stainless steel pipe clamps. The flow-through plugs shall be equipped <br /> with continuous pressure monitoring. <br /> The Contractor shall take all necessary precautions, including constant monitoring of <br /> bypass pumping to prevent sewage spills due to back-up and/or overflow resulting from <br /> breakage or blockage of the bypass system. The Contractor shall provide experienced <br /> personnel knowledgeable in the operation of the bypass equipment to monitor each bypass <br /> when the bypass is installed and operating. At no time shall the bypass system be left <br /> unattended during operation by the designated personnel. <br /> The bypass system (all equipment) shall be fully tested prior to commencing bypass <br /> operation, including back-up pumps. <br /> 6.22 SUBMITTALS <br /> Sewer main pipe and appurtenance submittals shall include,but not limited to the following <br /> manufacturer information: <br /> 1. SDR-26 PVC pipe,VCP pipe, and or other as approved by the Engineer <br /> 2. Fittings and Bends <br /> 3. Sewer Main Encasement Materials <br /> 4. Adapters/Repair Couplings/Gaskets <br /> 5. Sewer Bypass Plan and Overflow Plan <br /> 110 <br />