Maintenance of RWS schemes at Amarpur under Gomati District Tripura/SH-Maintenance of water supply schemes in/c. extension and maintenance of PVC, CI, DI and GI pipeline, washing of pipeline, fitting fixing of sluice valves, tyton collars, hydrant po

Excavating trenches of required width for pipes, cables etc. including exacavation for sockets, dressing of sides where required, ramming of bottoms, depth upto 1500 mm (slope-1 in 200)including getting out the excavated soil and backfilling of soil as required after laying of pipeline, in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. and disposing of surplus excavated soil with all required leads as per Chapter - 2 of CPWD specification and direction of the Engineer - in - charge. A) For UPVC pipes in new work . In all kinds of soil. i) For pipes not exceeding 90 mm dia

For pipes exceeding 90 mm dia but not exceeding 300 mm dia

Providing, fixing and laying rigid UPVC pipes conforming to IS: 4985 jointing with couplers of same class conforming to IS: 10124(Pt-II) with solvent cement conforming to IS: 14182 including testing of joints complete (but excluding the cost of specials like bend, tees etc. which will be paid separately ) as per CPWD specification and direction of the Engineer - in - charge. A. Class-3(working pressure 6.0kg/cm2 i)40 mm dia

ii) 90 mm dia

iii) 110 mm dia

iv) 140 mm dia

Charges for repairing of leakage in UPVC / HDPE pipe line with PVC coupler & solvent cement etc. including necessary earth excavation, backfilling of soil as required after laying of pipeline, in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. complete as per specification & direction of the Engineer-in-charge. i)90 mm dia

ii)110 mm dia

iii)140 mm dia

Charge for dismantling PVC/HDPE pipe after necessary excavation of earth in/c washing and stacking of pipes properly at site with all leads and lifts and backfilling of soil as required after laying of pipeline , in layers not exceeding 200 mm in depth in/c consolidating each deposited layer by ramming , watering, etc. complete as per specification and direction of the Er. -in -Charge. i) 90 mm dia