Retrofitting of Dharchula Nagar Water Supply Scheme Under Didihat Division

Rates of Retrofitting of Dharchula Nagar Water Supply Scheme

Cleaning of gadhera source including disposal of malwa, boulders, slips etc from drain and intake structures etc.

Excavation of earth work in ordinary rock by mechanical/manual means in foundation trenches (including lift upto 1 m & lead upto 30m) filling watering, ramming of excavated earth into the trenches or into the space between the building & the side of foundation trenches.

PCC 1:3:6 in foundation 20mm gauge hard stone ballast including supply of materials,labour, T&P etc completion of work.

R.R. stone masonary in 1:6 cement & local sand or bajari mortar in foundation & plinth including supply of all materials, labour, T&P required for proper completion.

RCC 1:1.5:3 in Wall and roof slab with cement coarse sand and 20 mm gauge stone but excluding its fixing and binding wire and excluding nacessary centering and shuttering.

MS.. work or iron plain work such as RCC work wrught to reqired onshap including supply of steel& its cutting &binding.

Providing and laying of wire crates 3.00x1.50x1.50 in size with GI wire conforming to IS:280&IS:4826 in150mmx 150mm meshlaid withstone boulders. as per direction of Engineer-in- charge. (As per PWD Uttarakhand specifications) GI eire 10 gauge BWG

Construction of Roughing Filter

Filter Media Ghatkola Source(Horizontal Filters)

Removal of Unuseable/Reuseabie filter media from the filter and disposal of Unserviceabie in a piace as directed by engineening -incharge with in 50meter and washing and screening of old filter media gravels with water inciuding all material labour T&P etc complete and spreading of reuseable media in filter

Supply and spreading of new filter media (gravel base) as per IS Specifications(10-20mm100mm thk layer and 5mm size 100mm thk layer

Supply and spreading of new filter media over gravel base as per IS Specifications as per water supply manual including testing of filter plant make the filter fully operational with all laboue T&P etc complete

Pipe line work

Excavation in ordinary soil (loam, clay, sand) for pipe line trenches including lift up to 1.5M and lead up to 30M with back filling, watering, ramming of excavated earth in the trenches.

Carting, laying and jointing of GI pipes in pipe line trench of following sizes.(DSR REPORT RATE) 32mm

M/s Manohar Singh (BID ID -407955)