Salna water supply scheme in block Pokhari Distt Chamoli

Amount

Supply, Carting, laying, jointing, fixing, testing & commissioning of following sizes of G.I. pipe as per latest IS : 1239 codes specification (Class medium) with specials & fittings in trenches underground including cutting, threading etc. complete in all respect or as per direction of Engineer in charge.

Excavation of earth for Pipe Line trenches of Supply Main in following strata requiring the use of special T&P such as Pick Axes, Sabbals etc. or by blasting or by crow bars with a lift up to 1.5 m and lead up to 30 m including refilling, watering and ramming of excavated earth into the trenches and removal and disposal of surplus earth up to a distance of 60 m from the trenches including supply of all materials, labour, T&P etc. complete. Assuming that 90% Pipeline is laid in trenches & also it is estimated that 75% trenches will be in soil mixed with shingle, bazri, boulder and rest of 25% will be in medium rock.

Soil mixed with single boulder with bazri

Medium Rock

Supply, cartage & fixing of Air Valve(IS 778 class-I) of following dia. including supply of all necessary T&P like flanges, nut bolts, rubber gaskets, etc. complete as per latest IS speciation or as per satisfaction & approval of Engineer in Charge.

Design, drawing & construction of Air Valve chamber, complete in all respects, as per directions of Engineer in charge including supply of material, labour, T&P and fixing of required size M.H. Cover required for proper completion of work.(Size-0.60x0.60x0.75 M)

Supply and fixing of the following fittings including cartage of materials, labours, T&P etc complete Gate valves (Class-I) as per I S 778/1997

20mm dia

25mm dia

Design, drawing & construction of Gate valve chamber, complete in all respects, as per directions of Engineer in charge including supply of material, labour, T&P and fixing of required size M.H. Cover required for proper completion of work.(Size-0.60x0.60 M)

RCC CWR:-Design, testing bearing capacity of soil and construction of R.C.C. semi sunk Clear Water Reservoir of following capacities in K.L. including supply of necessary scaffolding, shuttering and other accessories along with supply and fixing of inlet and outlet pipes of size equal to sizes of inlet and outlet pipe line, making bye pass arrangement, fixing of overflow pipe in outlet pipe/distribution system, fixing of lightening conductor & M.S. Manhole of size as per norms, supply and fixing of M.S. Steel Ladder outside and inside the tank, and colour washing of approved class snowcem and along with carting of all materials including supply of all materials, labour, T&P etc. complete as per latest IS specification or as per satisfaction & approval of Engineer in Charge.

PROTECTION WORK:-Construction of protection works including necessary Earth Work for Site Development, Service Reservoir etc. as per site conditions wherever necessary as follows :-

Random Rubble stone masonry in 1:6 cement and course sand mortar including supply of all materials, labour, T&P etc. complete.

Random Rubble stone masonry laid dry including supply of all materials, labour, T&P etc. complete.

Supply,cartage of all labour,material & T&P and construction/Fixing of Chlorinator of FRP coated Bucket type of 25 liter capacity over CWR.

Construction of 4.00m wide RCC. B.F.G at Gadhera including construction of intake chamber and supply of all materials,labour, T&P etc. complete.

Construction of R.C.C. Cross wall Gadhera tapping arrangement per running meter length excess over 4 meter gadhera including supply of all materials,labour, T&P etc.

Construction of R.C.C. roughening filter cum screening chamber Including supply of all material labour, T&P as per type design etc complete

Supply of all materials, labours,T&P etc and construction of Break pressure tank.

PRAHALAD SINGH RAWAT