Sundarban Affairs Department Tender

Extra over item No.-3 as the work is within the riverine areas of Sundarban Surrounded by the Bay of Bengal or the river like Hoogly, Muriganga, Saptamukhi, Thakuran, Matla, Raimongal, Kalindi etc.15% for Kalitala G.P.

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] (ii) With 1:4 cement mortar (a) 20 mm thick plaster

Neat cement punning about 1.5mm thick in wall, dado, window sill, floor etc. NOTE:Cement 0.152 cu.m per100 sq.m

Supplying, fitting, fixing Mild Steel draw shutter with Mild Steel plate of thickness as specified by the Engineer-in-charge and other necessary Mild Steel sections for sluice including fabricating the same (as per drawing and instruction given by the Engineerin- charge) excluding cost of Mild Steel guide channel, sill beam, gearing arrangement etc. but including painting with two coats of anticorrosive bituminous paint of approved make & brand over two coat of red lead primer and with necessary masonry work with all materials supply etc. complete at site.

Supplying / Replacing Gear rod by a new Mild Steel Gear rod, threaded length as required and fitting, fixing in position with screw gearing arrangement for operating the draw shutter including taking out old gear rod by cutting bolts etc. complete as per direction of the Engineer-in charge. (The old materials to be returned to Departmental Godown.) (a) 50 mm. dia.

Supplying / Replacing Gun Metal Bush for screw gearing arrangement required for hanging arrangement of draw shutter and fitting & fixing with the screw gearing arrangement for operating the draw shutter by taking out the old screw gearing arrangement and Gun Metal bush etc. complete as per direction of the Engineer-in-charge. (The old materials to be returned to Departmental Godown.) (a) 50 mm. dia

Supplying, fitting, & fixing in position rubber seal arrangements with musical note harmonic 'J' type for making water tight in both up and down stream of draw shutter as well as flap shutter including guide paths, additional M.S.flats, bolts and nuts for fixing the rubber seal in position including fabricated cost and carriage of all materials to site and complete as per direction of the Engineer-in-Charge. (b) Musical Note, Harmonic Type (b)127 mm. X 6 mm.

Earthwork from borrow pits over existing embankment or for repairs to embankment, closing breaches etc. within an initial lead of 30 metre and lift of 1.50 metre including breaking clods and depositing the same in layers not exceeding 25 cm. and rough dressing etc. complete as per profile.

Earthwork in re-excavation / silt clearance of drainage channels in all kinds of soil including sludge and slush but excluding slush mixed with industrial wastes, sewage, municipal garbage, carcasses, etc and depositing the same as per profile in proper place as directed by the Engineer-in-charge without causing hindrance to traffic and posing health hazard and making arrangement to maintain the site in workable condition including removal of polypacks, brickbats, stone ballasts & boulders, remnants of bullah & bamboo pins and all kinds of water hyacinth, solid / semi solid compact mass formed due to water hyacinth and burning them to ashes or removing outside Govt land where necessary and removal of thick & thorny jungles upto 30 cm girth including shoring and shuttering, if required, and including initial removal of sludge and slush etc by pan or bucket if required, and making arrangement for bailing out of any seepage water and removal of sand or soil blown from underneath, all complete. (Measurement : Pre-work and Post-work level section. Pre-work section to be taken after removal of water hyacinth and all other floating materials etc.) (a) By manual means within an initial lead of 30 M and an initial lift of 1.50 M

Providing and laying nominal mix Cement concrete (with mix proportion 1:1.5:3) / M-20 grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm of Pakur or other approved variety including Screening and cleaning of aggregates, if necessary, both of approved quality and cement, as necessary, compacting by vibrator or other suitable means, cost of curing with water, cost for quality control, sampling, testing etc. and including placing a Separation membrane of impermeable PVC sheet 125 micron thick transparent or white in colour laid flat with minimum creases. Before placing the separation membrane, the sub-base shall be swept clean of all the extraneous materials. Wherever overlap of plastic sheets is necessary, the same shall be at least 300 mm and any damaged sheathing shall be replaced at the Contractor's cost. Including carriage of all materials to site but excluding the cost of staging, shuttering and and reinforcement if any

Extra over item No.-12 as the work is within the riverine areas of Sundarban Surrounded by the Bay of Bengal or the river like Hoogly, Muriganga, Saptamukhi, Thakuran, Matla, Raimongal, Kalindi etc.15% for Kalitala G.P.

Supplying, fitting and placing HYSD Bar reinforcement in Sub-Structure including initial straighttening, straightening of coils bars, removal of loose rust (if any) cutting to requisite length bending, binding with annealled wire not less than 1mm in size and conforming to IS 280 at every intersection hooked and bent to correct shape and placed on forms etc. includinding cost of black annealed wire and cost of loading, unloading,carriage of all steel materials complete as per drawing and technical specifications and direction of Engineer-In-Charge

Providing & fixing Concrete Sign Board as per IRC specification of size 900 x 750 x 37 mm. thick made with RCC 1:1½:3 with pakur variety stone chips reinforced with double layer IRC febric (75 x 75 mm. mesh) and fixed with necessary nuts & bolts on two RC precast posts 100 mm. x 150 mm. of height 2.65 m. of which top 750 mm. is of section 100 x 13 mm. and 1.90 metre above GL & 0.75 metre below GL including digging hole, repacking the same with cement concrete 1:3:6 with jhama khoa or with local stone chips etc. complete including painting two coats on both faces lettering sign marks etc. as per direction of the Engineer-in-Charge. (The rate is inclusive of cost of reinforcement, concrete, shuttering, nuts & bolts, washer etc. complete.).

GST as applicable - @ 18%

Labour Welfare cess - @ 1%