Rehabilitation of Puthurvayal Supply Channel from LS 1900 to 3100 M in Gudalur Taluk of Nilgiris District

Amount

Clearing light jungle and destroying the same effectively complete complying with standard specification and as directed by the departmental officers

Earthwork excavation deploying earth moving machinery for desilting the stream having a width of more than 10m and forming bund on either sides and depositing the earth on banks including jungle clearance etc, complete complying with standard specifications as directed by the departmental officers

Earth work excavation for foundation, depositing on bank with an initial lead of 10 m and initial lift of 2 m in sand, silt or other loose soil, wet sand or silt not under water light black cotton soil , sandy loam and ordinary soil including excavated earth, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders complete complying with standard specifications and as directed by the departmental officers. (Open Excavation)

Supplying and filling in foundation and basement and trenches with filling M sand in layers of not more than 15 cm thick, well watered, rammed and consolidated etc., complete complying with standard specifications and as directed by the departmental officers.

Providing and laying Plain Cement concrete of M10 grade (Design Mix) using 40mm HBGS jelly (well graded) confirming to IS specified grading (to produce concrete of the specified grading and characteristic strength of 10N/mm2 at 28 days) and mixing the ingredients by mixer machine including dewatering by bailing/pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts,compacting and finishing the surface, watering, curing etc.,complete complying with standard specifications and as directed by the departmental officers.

Providing and Laying in position, Standardised Concrete Mix M-20 Grade in accordance with IS:456-2000, using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5 cu.m.) 7730 kg. of 20 mm machine crushed stone jelly and with about (3.3 cu.m.) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cum') 7670 kg. of sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing,etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS standards. (No separate payment will be made by the Department for the excess usage of materials).

Supplying and erecting steel centering for cement concrete block, column, footing, pedestal, plinth beam, grade beam etc.,which require nominal strutting etc, using MS sheets 10 gauge thick of size 90 x 60 cm stiffened with MS angle of size 25mm x 25mm x 3 mm laid over silver oak joists of size 10 cm x 6.5 cm spaced at 90 cm c/c duly supported and removing the strutting after specified period without damaging the concrete laid complete complying with standard specification and as directed by the departmental officers.Scaffolding and centering charges for the structural components is including the cost and converyance of all material to the site including all labour charges and incidental charges etc., complete complying with standard specification and as directed by the departmental officers

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29 m height for vertical/sloped surface as detailed below with all cross bracings using mild steel sheets 10 gauge thick of size 90cm x 60cm stiffened with welded mild steel angle of size (25 x 25 x 3) mm laid over silver oak joists of size 10x6.5cm spaced about 90 cm c/c and supported by casurina props of 10 cm to 13cm dia spaced at 75 cm c/c and removing the centering and shuttering after specified period without damaging the concrete laid, complete complying with standard specification and as directed by the departmental officers.Scaffolding and centering charges for the structural components is including the cost and converyance of all material to the site including all labour charges and incidental charges etc., complete complying with standard specification and as directed by the departmental officers (Vertical Centering)

Supplying and fabrication of steel required for all RCC works involved in the schedule including cost of steel , cost of fabrication, labour charges for cleaning the rods straightening, cutting, bending, tying grills including over lapping to the required length wherever necessary and placing reinforcement in position as specified in the drawing including cost of binding wire provision for space bars, cover blocks and all other incidental charges etc., complete complying with standard specification and as directed by the departmental officers

Providing Filter media arrangements to the pressure relief holes in the rear side of walll for a size of 45cmx45cmx60cm and filling with 20mm metal of 30cm thick in Ist layer and 40mm metal of 30cm thick in IInd layer, the rate is including cost of metals etc complete complying with standard specification and as directed by the departmental officers

Supplying and Fixing PVC pipes of size 63mm dia with having working pressure as per ISI Standards (6 kg/cm2) for pressure relief holes(weep holes) etc., including all labour charges for fixing, cost and conveyance of all materials to the work site etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing PVC water Bar 150mm wide with single bulb including all labour charges,conveyance charges for fixing etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing bitumen felt 15 mm thick pad for the joints in the walls including all labour charges,conveyance charges for fixing etc., complete complying with standard specification and as directed by the departmental officers.

GST 18 % in figures

CHITRAHEM CONSTRUCTION COMPANY (BID ID -1455282)