10.26.2021-SBN-Standards-Manufacturer-Additions-Minor-Revisions-final

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SECTION 5 – WATER WORKS 77 5-3.4 WATER MAIN INSTALLATION 5-3.4 (a) INSPECTION FOR DEFECTS Before installation, the pipe shall be inspected for defects. Material found to be defective before or after laying shall be replaced with sound material. 5-3.4 (b) CARE OF PIPE Pipe and accessories shall be handled so as to ensure delivery to the trench in sound, undamaged condition. Particular care shall be taken not to damage the pipe coating or lining. If the coating or lining of any pipe or fitting is damaged, it shall be repaired immediately. No other pipe or material of any kind shall be placed inside a pipe or fitting after the coating has been applied. Pipe shall be carried into position and not dragged. Use of pinch bars and tongs for aligning or tuning pipe will be permitted only on the bare ends of the pipe. The interior of pipe and accessories shall be thoroughly cleaned of foreign matter before being lowered into the trench and shall be kept clean during laying operations by plugging or other approved method. 5-3.4 (c) PIPE JOINTS Prior to making pipe joints on water main, clean and dry all surfaces of pipe joints and jointing material. Use lubricants, primers, adhesives, and similar materials as recommended by the manufacturers. Place, fit, joint, and adjust the jointing materials or factory fabricated joints as recommended by the manufacturer to obtain the degree of water tightness required. As soon as possible after the joint is made, place sufficient backfill material along each side of the pipe to resist forces that might tend to move the pipe off line and grade. Rubber gaskets that are not to be installed immediately shall be stored in a cool dark place. Mechanical and push-on joints shall be installed in accordance with AWWA C600 for buried lines or AWWA C606 for grooved and flanged pipe above ground or in pits. 5-3.4 (d) PIPE LAYING Pipe and accessories shall be carefully lowered into the trench by means of derrick, ropes, belts, slings, or other authorized equipment. Under no circumstance shall any water-line materials be dropped or dumped into the trench. Care shall be taken to avoid abrasion of the pipe coating. Except where necessary in making connections with other lines or as authorized by the Engineer, pipe shall be laid with the bells facing in the direction of laying. The full length of each section of pipe shall rest solidly upon the pipe bed, with recesses excavated to accommodate bells, couplings, and joints. Pipe shall be firmly set on a good foundation and care shall be taken that pipe does not rest on stones, rock, or any unyielding material. Pipe that has the grade or joint disturbed after laying shall be taken up and re-laid. Pipe shall not be laid in water or when trench conditions are unsuitable for the work.