Replacement of dedicated water pipeline for maintenance of environmental assets (Arboriculture) at NSTL, Visakhapatnam

CIVIL WORKS

Dismantling manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge :

Bituminous road.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources).

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc.

50 mm dia nominal bore.

25 mm dia nominal bore.

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :

50 mm nominal bore.

Providing and fixing ball valve (brass) of approved quality, High or low pressure, with plastic floats complete :

25 mm nominal bore.

Bore Well :-

Surveying the area and by special agencies to location point with electro resistive method for drilling 150mm dia bore well all complete as per direction by Engineer-in- Charge.

Drilling bore well 150mm dia in any type of soil including rock granites upto a maximum depth of 130m at one specified point including labour material and equipments.

Supply and fixing of HDPE pipe suitable for all complete.

Supply and fixing of PVC casing pipe suitable for 150mm dia bore well grade C.

Supply, errection,testing and commissioning of submersible pump set 12.5 HP pump with ISI mark.

Supply, errection, testing and commissioning of 6 Sqm 3 core copper cable flat water proof inside bore well and laid over ground suitable for submersible pump along with PVC conduct where required all complete.

Dismantling G.I. pipes (external work) including excavation and refilling trenches after taking out the pipes, manually/ by mechanical means including stacking of pipes within 50 metres lead as per direction of Engineer-in-charge : Above 40 mm nominal bore.

Providing and fixing gun metal non- return valve of approved quality (screwed end) 50 mm nominal bore Horizontal.

Credit of Old Dismantled GI pipe line.

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