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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 />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 />