Installation of Hinged Flood Gates, Hinged Phytotrap and Hinged Baffle Walls for in- situ drain treatment in NEERI premises.

Amount

Earth work in excavation by mechanical means (Hydraulic excavator) /manual means over areas (exceeding 30cm in depth. 1.5 m in width aswell as 10 sqm on plan) including disposal of excavated earth, lead upto 50m and lift upto 1.5m, disposed earth to be levelled and neatly dressed.

All kinds of soil.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

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

1:2:4(1 cement:2 coarse sand: 4 graded stone aggregate 20mm nominal size)

Providing and laying in position specified grade of reinforced cement concrete excluding the cost of centering,shuttring, finishing and reinforcement- All work up to plinth level.

For all work

Centering and shuttering including strutting, propping etc. and removal of form for:

Lintels, beams, plinth beams, girders, bressummers and cantilevers.

Steel Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete:

Thermo-Mechanically Treated Bars of grade Fe-500D or more

Supplying and laying boulder soling (soling stone 125 to 45 mm)and voids filled with murum below floor and plinth including watering compacting and consolidating in layer not more than 150mm thick etc. complete

Removing of existing sludge/mud/bio waste deposit material from the Nallah with the help of manual/ mechanical means and lead the material up to 1 km within the institute as per the direction of engineering in- charge.

Installation of Hinged Flood Gates, Hinged Phytotrap and Hinged Baffle Walls as per the direction of engineering in- charge.