Immediate measures to restore the damages on R/B of river Aie at Sutradhar basti and its adjoining area under SDRF for 2019-20

Amount

Clearing light jungles and trees up to 50cm. girth including cutting, uprooting roots and stamps, removing them from the site of work. etc. complete as directed.

Collection and supply of river boulder of size 23cm. to 30 cm. 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 works) Complete as directed (15% deduction will be made from the stack measured quantities on account of void). Quarry:- Deosri

Supplying of galvd. hexagonal W.N. rolls 152mm.(6”) mesh of size 15.24m.X3.66m.(50’X12’) longitudinal wire at 152mm.(6”) centre made of 8BGW wire triply twisted including loading, unloding 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. W.N. sheets of 8G.wire of 152mm.(6”) square mesh in sheet of overall size 2.57m.x1.66m.(8’x 6”) including 76mm. projection of eachwire on all sizes beyond the net size of 2.42m.x1.50m.(8’-5’) including loading, unloading and stacking properly etc. Complete as directed(Tax extra).

Earthwork in bank trimming to the designed section /slope including removing the soils at a safe distance, complete as directed.

Local carriage of boulder, metal, gravel/sand etc. from the approachable site beyond 150m and up to 3.00 Km from the work site including loading from stack and unloading at work site with 10 (ten) ton capacity truck, supplying P.O.L. etc. complete as directed.

Labour charge for dumping boulder in sausage made of hexagonal wire netting rolls of size (15.24x3.66)m (supplied by the department. free of cost) cutting the netting as required making the sausage by tying the projected ends with 8G wire including supplying & tying the wire at every joint 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.

Labour charge for dumping boulder in cage made of W.N. sheets made of 8G.wire mesh of size 2.57m.x1.66m.two sheets to be made of one cage supplied by the deptt. free of cost making the cage by tying the projected ends filling boulder inside the cage and launching the same as directed including all handling charges and local carriage of boulder from a distance up to 150m. etc completed as directed

Labour charge for loose dumping boulder of 23cm. to 30cm. size in loose in eroded portion of river bank/ bed including handling charge and including site carriage of boulder from stack yard/ dump site within a distance of 150 m. etc. complete as directed.(Without boat)

Supply of R.C.C. Porcupine member of size 0.10m × 0.10m × 2.00m with cement concrete proportion 1 :2:4, reinforced by 4 Nos. of 8mm dia TMT bar. and 4mm dia (8G) wire stirrups at 15cm. C/C with 2 (two) nos of holes of 20mm 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 20mm dia at 65 cm inside from both ends including properly curing for 28 days and supply at work site complete as directed.

Labour charge for launching of R.C.C. Porcupine including carriage of R.C.C. porcupine members of size 0.10m × 0.10m × 2.00m from the stack yard to the place of launching ,erection of the Porcupine with 6 (six) members properly, supply & fitting/fixing with 12 mm dia 25 Cm long M.S. Nuts and bolts and launching the porcupine properly as directed. (Lead up to 150 m) Launching without boat.

RWIRUP MUSHAHARY

SWRANG KHAKLARY