OandM - Water Supply Schemes-RWSS to VELINALLOOR-Gap laying work at Mantrikunnumpuram-Stretch2

100.1.1:Excavating trenches of required width for pipes, cables, etc., including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20cm in depth, including consolidating each deposited layer by ramming, watering, etc., and disposing of surplus excavated soil as directed, within a lead of 50m, in all kinds of soil.

100.98.220:Supply of PVC Pipe, 8kg/cm2, 50mm Dia.

100.9.5:Laying uPVC pipes of class 2 to class 6 and specials, lowering to the trenches already made, placing in position aligning the pipeline to the lines and levels and jointing the pipes and specials with solvent cement and testing the pipeline with water to the required test pressure (excluding cost of pipes and specials): 50 mm nominal outside diameter pipes.

OD276743/2025-2026:Jointing 50mm PVC with existing pipes laid to lines and levels in the trenches using available type of joints after cleaning the ends, centering the pipes inserting the joints and tightening including conveying the materials within initial lead and other sundries etc., complete to make a water tight joint capable to withstand the required pressure

100.8.1:Fencing one side of trenches, 1.50m height with two rows of 10cm plastic caution tape in vertical casuarina pole (girth 15cm to 24cm) fixed at 2m intervals.

OD276795/2025-2026:Plugging the existing 75 mm pvc pipe with PP PN16 Compression End Cap, during alteration works, including cost of materials and consumables and charges for lighting, watching, providing caution boards etc. complete , including the cost of earthwork excavation in all kinds of soil, but excluding the cost of cutting of concrete / tarred / bituminous roads and as per directions of the department officers.