Immediate measures to restore the damages of village Sidabari of river Langkar on L/B under S.D.R.F. for 2020-21

Amount

Light Jungles: Clearing light jungles and trees upto 15 cm. Girth including cutting, uprooting roots and stumps, removing them from the site of the work, etc. complete as directed. ( When 30% of the area is covered by shrubs, trees etc.)

Collection of river boulder of size 23cm. to 30cm. in average and minimum weight 30 kg having (i) specific gravity not less than 2.65 and materials properties 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, payment of forest royalty, monopoly, etc.(10% under sized boulder is allowable for packing / filling the gaps occurred during execution of work) Complete as directed. (15% deduction will be made from the stack measured quantities on account of void) Quarry:- Taklai River Quarry

Supplying of galvd. Hexagonal W.N. rolls 152 mm. (6”) mesh of size 15.24m. X 3.66m. (50’X12’) longitudinal wire at 152 mm.(6”) centre made of 8 BGW wire triply twisted including loading, unloading and stacking etc. Complete as directed by the deptt. (weight of each roll should not be less than 83 Kg.) (tax extra).

Supply of galvd. Wire netting sheets of 8G. wire of 152 mm (6”) square mesh in sheet of overall size 2.57m x 1.66 m. (8’x6”) x (5’x6”) including 76 mm. projection of each wire on all sizes beyond the net size of 2.42m x 1.50m including loading, unloading and stacking properly etc. complete as directed. (Tax extra).

Supply of R.C.C porcupine member of size 0.10 m. x 0.10 m. x 2.00 m. with cement concrete proportion 1:2:4 reinforced by 4 Nos. of 8mm dia T.M.T bar and 4mm. dia (8G) wire stirrups at 15cm C/C with 2(two) nos. of holes of 20 mm.dia. at 50 cm inside from both sides in the same face and in the other face of member another 2 (two) nos. of holes of size 20 mm. dia at 65 cm inside from both ends including properly curing for 28 days and supply at specific stack yard. complete as directed. (NOTE:Consider sand =0.009 cum/member & stone =0.018 cum/member while calculating deduction on Forest Royalty.)

Earth work in bank trimming to the designed section/ Slope including removing the soils at a safe distance. Complete as directed.

Labour charge for dumping boulder in sausage made of hexagonal W.N. Rolls of size 15.24m. X 3.66m.(supplied by the deptt. free of cost) cutting the netting as required making the sausage by tying projected ends with 8G. wire including supplying & tying the wire at every joints after filling the sausage with boulders properly and launching in places handling charges including site carriage of boulder from stack yard/dump site within a distance of 150 m.etc. Complete as directed.(without boat).

Labour charge for dumping of boulder in cage made of wire netting sheets of size 2.57m x 1.66m of 8G galvanized wire making the cage from 2 nos of wire netting sheet by tying the projected wires (wire netting sheet supplied by the department free of cost within 150m of work site)filling boulder inside in cage launching the same in position as directed including all handling charges and including site carriage of boulder from stack yard/dump site withina distance of 150m etc. Complete as directed. (without boat)

Labour charge for launching of R.C.C porcupine including carriage of R.C.C porcupine members of size 0.10 m x 0.10 m x 2.00 m from the stack yard to the Place of launching erection of the porcupine with 6(six) members properly, supply & fitting/fixing with 12mm dia 25cm long M.S nuts and bolts and launching the porcupine properly as directed (Lead upto 150m) ( Without boat ).