Pro-siltation measures to protect Sukchar, Borobalu and its adjoining areas from the erosion of river Brahmaputra.

Amount

Earthwork in bank trimming to the designed section /slope by mechanical means including removing the trimmed soils to a minimum distance of 30 m, complete as directed.

Supply of Pre stressed Cement Concrete (PSC) Porcupine members of size 0.10 m × 0.10 m × 3.00 m with M - 30 grade of cement concrete conforming to IS 1343:2012 using super-plasticizer @1.2 lit/bag of cement with graded broken coarse aggregates up to 20 mm size down conforming to IS 10262:2009 & IS 456:2000 and reinforced with 4 nos. of 4 mm dia. high tensile steel wire cable/strand with necessary cover and 4 mm high tensile stirrups at 250 mm C/C, in conformity with IS-6403:R2002 and stressed to required strength not exceeding 9.18 N/mm, holes of 16 mm dia. at 50 cm inside from both ends in the same face and in either face of post another 2 nos. of holes of size 16 mm dia. at 65 mm inside from both ends including properly curing for 21 (Twenty one) days and carriage of porcupine members from factory to the stack yard within a distance up to 50 Km including loading, unloading & stacking complete as directed.

Labour charge for launching of PSC Porcupine including carriage of PSC porcupine members of size 0.10 m × 0.10 m × 3.00 m 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

Labour charge for launching of PSC Porcupine including carriage of PSC porcupine members of size 0.10 m × 0.10 m × 3.00 m 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 with boat

Construction of whole Bholuka Bamboo double Screen with matured Bholuka Bamboo stacks 75 mm to 100 mm dia., placed at 30 cm clear apart (i.e. 40 cm C/C) driven 4.00 m to 4.50 m below ground and 3.0 m to 3.50 m above ground with hydraulic driving equipment including hire charge of equipment, cost of P.O.L. etc. and providing with 1 (One) row of horizontal half Jati bamboo kamies tied with galvanised wire of 16 G to 18 G etc. complete as directed.(Using Bhaluka Bamboo at the rate of 240.0 nos./Rm & Jati Bamboo at the rate of 9.60 nos./Rm)

Collection and supply of brick bats 10 - 40 mm size to work site including loading, unloading transportation and stacking in measurable stacks including sale tax, compensation if any, etc. complete as directed .

Labour charge for laying of soling stone, brick bats, broken stone metal, sand gravel etc. on approach road including ramming dressing the seat and local carriage of materials up to a distance of 60 m complete as directed.(with Boat)

Collection and supply of Earth by head load free from roots & vegetation and stacking in regular measurable stacks at suitable places including clearing and levelling the stacking seats, breaking clods up to 4.0 cm cube, etc. complete as directed. (12.5% deduction will be made from measured quantity on account of shrinkage) For initial lead up to 30 m and lift of 1.5 m.(Without Boat)

Spreading of earth stacks over the crest and slope of embankment and places as directed in uniform layer of 22 cm. thick including breaking clods, dressing, ramming etc. complete where necessary including dressing of the embankment, etc. complete as directed.