A/E measures to protect the left bank of river Kalanadi at Uttar Kalikhola including de-siltation work.

Amount

Earth work in excavation of drainage channel to the proper grade and slopes as required including disposing the excavated debris/soil to a safe distance of minimum 50 m distance, etc. complete as directed. For lead up to 50 m and all lifts

Collection of river boulder of size 23 cm to 30 cm in average and minimum weight 30 Kg having i. Specific gravity not less than 2.65, ii. Aggregate Chrushing < 30% (Wearing) & < 45% (Non - wearing) iii. Impact Value (%) max < 30% (Wearing) & < 45% (Non - wearing) and iv. Abrasion Value (%) < 30% (Wearing) & < 50% (Non - wearing) (Materials conforming to IS 2386 part III & IV 1963) free from dust, dirt and other foreign materials including necessary carriage and stacking in regular measurable stacks at site, monopoly, etc. complete as directed. (10% under sized (not less than 10 cm) boulder is allowable for packing/filling the gaps occurred during execution of works) Complete as directed. (15% deduction will be made from the stack measured quantities on account of void).

Construction and supply of Wire -netting box of size 1.50 m × 1.50 m × 0.45 m made with mechanically woven, double twisted, hexagonal shaped wire mesh with wire made of low carbon, high ductile MS wire with heavy class of galvanization with an additional layer of PVC coating with mesh type of 10 × 12 as per EN 10223 & ASTM A975, mesh wire of 2.70 mm (I.D) /3.70 mm (OD) tensile strength of 450-500/mm2, edge wire selvedge around it at least 2.5 times, lacing wire (Zinc PVC coated) of 2.20 mm (I.D)/3.20 mm (OD), VC coating thickness of 0.50 mm nominal, 0.38 mm minimum, Mesh opening size 150 mm × 150 mm and with average weight per unit being 12 Kg with additional 3% of the weight of box for lacing wire supplied separately, supporting the facing of the box with zinc coated steel wire of required length as directed, complying with ASTM and European norms.

Labour charge for dumping boulder in cage made of wire netting sheets of size 2.57 × 1.66 m of 8 G galvanized wire making the cage from 2 nos. of wire netting sheet by tying the projected wires, filling boulder inside in cage, launching the same in position, including all handling charges and including site carriage of boulder from stack yard/ dump site within a distance of 150 m. etc. and complete as directed. (Wire netting sheets to be supplied by the Department free of cost). Without Boat.