111 Anti Erosion Works and 01 Rain Water Harvesting RWH Scheme Anti erosion work along the bank of River Manu at vulnerable locations of Mainama NH 44A under Mainama VC within the jurisdiction of Manu RD Block during the year 2021 22

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30cm in depth, 1.5m in width as well 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.

Manufacturing of cement concrete block with mix 1:4:8(1Cement : 4 river sand :8 Jhama brick agreegate of 40 mm nominal size) including centering and shuttering of size 0.45m x 0.45m x 0.30m and engraving the serial number of each block as per direction of the Engineer-in-charge.

Placing of sand cement/cement concrete blocks of size 0.45m x 0.45m x 0.30m in slope of river bank and in river bed in/c preparation of bed or launching appron as per direction of the Engineer-in-charge.

Supplying, testing and installation of woven jute Geotextile (JGT) by special water repellant treatment having pore size (O90)-30 to 400 micron & untreated weight of 760 gsm, tickness 2 mm, width 1000 mm, tensile strength 21 KN/mtr (in wrap direction) x 21 KN/mtr (in weft direction), strain at breeak 10% (both in wrap and weft directions) over a prepared bed and providing side lapping of 150 mm and horizontal lapping of 250 mm duly secured to slope of embankment by U-shapped M.S. stapples (11 gauge) at an interval of 750 mm as per direction of the Engineer in charge. The rate is inclusive of preparation of bed and inclusive of all govt. taxes, duties, cess as leviable, transportion from a reputed jute Mill at/near Agartala to the work site upto 100 km loading & unloading and storage of the material at site etc complete. (Payment to be made on the basis of mesurement on finished surface)