Construction of Dakhyat Gaon water supply scheme of Block Purola District Uttarkashi

Amount

Distribution System and Gravity mains:- Supply , laying & jointing of G.I.(Medium) screwed pipes (including supply of all jointing materials like specials, white lead, hemp and oil etc complete .) in trenches with its cutting, threading and testing of pipe line etc complete.

15 mm dia

20 mm dia

25 mm dia

32 mm dia

40 mm dia

50 mm dia

Dismentalling and relaying of following dia screwed and socketed pipe G.I. pipes specilas and fittings including taking out of dismentalled pipes and psecials from trenches and stacking them from properly and relying includig all labour special fitting etc complete.

20 mm dia

Excavation of earth for pipe line in following strata lift upto 1.5m. Lead upto 30m. Including refilling,watering,ramming of excavated earth into the trenches and removal of surplus earth upto adistance of 60m. Fromtrenches including supply of labour,T&P.etc complete.Assuming that 90%pipe line is laid in trenches ,it is estimated that 75% exavation will be in soil mixed with shingle,bajri&boulders and rest 25%will be in soft rock.

Soil mixed with boulder and bajri

soft rock

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

40 mm dia

High head cast iron air valves

15 mm (T.P.-10 Kg/Sqcm)

Supply of all materials, labours, T&P etc and construct gate valve chamber as per type design complete.(.60x0.6x0.75)

Supply of all materials, labours, T&P etc and construct air valve chamber as per type design complete.

Supply of all materials, labour, T&P etc and construction of R.C.C. CWR of following capacities (KL) with M.S. ladder outside & inside of the tank, M.S.M.H. cover with locking arrangement, supply and fixing of chlorinator, cowl,outlet, over flow and wash out pipes with necessary sluice valves, pipe pieces (including cost of materials) flooring 0.60 M wide apron, painting with approved water proofing (apex) / enamal paint, testing, filling water for testing purpose etc. including supply of vertical pipes and specials,and cleaning of bushes for path, assuming bearing capacity as 8MT/M2 .

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge..

Supply and installation of bucket type chlorinator of 25 liters capacity including bleeching powder solution doser,chloroscope kit with stop cock & iron cage fabricated with 25mm x 25mm square mesh with locking arrangements below dozer to protect flexible pipe connection with CWR complete with all arrangements in position.

Random Rubble stone masonry in 1:6 with cement and 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.

Construction of R.C.C. roughening filter cum screening chamber near by tapping point of under existing water supply scheme, for collection of water including supply of all materials, labour , T&P etc.

Construction of R.C.C. Intake chamber having (1.0mx1.0mx1.5m) size at tapping point of under existing water supply scheme, for collection of water including supply of all materials, labour , T&P etc.

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - -All work upto plinth level 1:4:8 (1 Cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size).

150 mm dia S.C. P.C.C Drain

Construction of a Cross Wall including supply of all material, labour, T&P etc complete