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Removal of existing facilities, trench excavation and bacldill and restoration shall be in accordance with the provisions of Section 100,200 & 600 of these specifications. 303.300 WATERMAIN PIPE LAYING OPERATIONS - The primary line and grade will be perfonned as specified in "Special Conditions", Section 100. No deviatjon ftom the required line or grade will be allowed except with the consent of the ENGINEER j Trench excavation and bedding preparations shall proceed ahead of pipe placement as will permit proper placement and joining of the pipe and fittings at the prescribed grade and alignment without unnecessary hindrance. Every reasonable precaution shall be taken to prevent foreign materials ftom entering the pipe while it is being placed in the line. The watennain materials shall be carefully lowered into laying position by the use of suitable restraining devices. Under no circumstances shall the pipe be dropped or dumped into the trench. Before being lowered into laying position, the CONTRACTOR shall make a thorough visual inspection of each pipe section and appurtenant units to detect damage, foreign matter needing removal or unsound conditions that may need corrective action or be cause for rejection. Inspection procedure shall be as approved by the ENGINEER, with - special methods being required as he deems necessary to check out suspected defects more definitely. The C:>NTRACTOR shall infonn the ENGINEER of any defects discovered and the ENGINEER will prescribe the required corrective actions or order rejection and prompt removal ftom the site. I I J Immediately before pla~ment, the joint surfaces of each pipe section and fitting shall be inspected for the presence of foreign matter, coating blisters, rough edges or projections, and any imperfections so detected shall be corrected by cleaning, trimming, or repair as needed. At the time of pipe placement, the bedding conditions shall be such as to provide unifonn and continuous support for the pipe between bell holes. Bell holes shall be excavated as necessary to make the joint connections, but they shall be no larger than would be adequate. No pipe material shall be laid in water nor when the trench or bedding conditions are otherwise unsuitable or improper. Unless otherwise permitted by the ENGINEER, bell and spigot pipe shall be laid with the bell ends facing upgrade and the laying shall start at the downgrade end and proceed upgrade. When placement or handling precautions prove inadequate, in the ENGINEER's opinion, the CONTRACTOR shall provide and install suitable plugs or caps effectively closing the open ends of each pipe section before it is lowered into-laying position, and they shall remain so covered until removal is necessary for connection of an adjoining unit. As each length of bell and spigot pipe is placed in laying position, the spigot end shall be centered in the bell and the pipe forced home and brought to correct line and grade. The 300-8