Water_supplyCC_GGN

Amount

Excavating trenches of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5 m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m : 1.2. Pipes, cables etc. exceeding 80 mm dia. but not exceeding 300 mm dia (HSR item No. 4.16.1.2)

Constructing brick masonry inspection Chamber sizes as given below up to 0.60 metre average depth in cement mortar 1:5 lime concrete with 40 per cent lime mortar 2:3 in foundation cement concrete 1:2:4 benching 12mm thick cement plaster 1:2 with a floating coat of 1 mm thick of neat cement R.C.C. 1:2:4 slab 100 mm thick/cement concrete topping, 50mm thick with 455mmx455mm / 455mm x610mm inside light duty C.I. inspection chamber cover and frame weight as per I.S.I. specification painted with 3 coats of black bitumastic superior paint complete as per standard design. 1. Size 450 mm X450 mm inside (with 455 mm x 455 mm cover and frame light duty single seal weighing 20 kg with C.C. topping(HSR item No. 21.84.1)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work below plinth level and up to Floor IV level: 2. 1:2:4 (1 cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size (HSR item No6.1.2)

Extra for fixing sluice valves/flap valves socketed or flanged including cartage from stores or nearest Railway Station to site of works 2. 100 mm i/d (HSR item No.20.10.2)

Providing and screwing in brass/Gun Metal ferrules drilling and tapping Cast Iron /D.I. /G.I. pipe lines of all diameters and connections including carriage, loading, unloading etc. complete in all respects to the satisfaction of Engineer-in- Charge. (Excavation will be paid separately). 2. 10mm i/d ferrule HSR item No.20.56.2)

Providing, lowering, laying in trenches, aligning, fixing in position and jointing Ductile Iron (DI) ISI marked K-7 grade SandS pipes as per IS:8329-2000 (amended up to date), with internal cement mortar lining for potable water with rubber ring (EPDM/SBR) joints as per IS: 5382-1985 (excluding special accessories) complete including all material, labour, hydraulic testing and commissioning as per Technical Specifications and as per direction of Engineer. Note: E/W to be measured and paid separately. 1. 100 mm i/d (HSR item No. 20.64.1)

Providing, lowering, laying in trenches, aligning, fixing in position and jointing at all level/depths Ductile Iron (DI) standard specials plain /flanged/ socketed confirming to IS9523-2000 with rubber ring (EPDM/SBR) joints such as tees, bends, tapers, caps etc. with in trenches in DI pipe line complete including all material, labour, testing and commissioning along with pipe line as per Technical Specifications and as per direction of Engineer. 1. Up to 300mm dia (HSR item No. 20.68.1

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