Providing, lowering in trenchesto correct gradient and alignments, jointing with tytone rubber joint and cutting of RCC S/S pipes having inside HDPE. lining ISI marekd as per ISI code IS:458-2003 into trenches for all depths and laying out the same to correct alignment, gradients, levels etc.,cutting of concrete beds and joints holes, supporting the pipes and specials in correct position in a suitable rigid manner while the same are being jointed and until the surrounding benchings, haunches and envelopes are completed. The pipes shall rest on the beds at all joints through their lengths and to ensure this, testing the pipes for leakage and making good the same leakage and all defects to the entire satisfaction of the Engineer incharge including all cartage etc copmplete in all respects. RCC pipes with inside HDPE lining class- NP-4 500 mm i/d pipes