Construction of Check dam across Uppar Odai in S.F.No.275 of Varapalayam Village (Near Nanjiyampalyam Village) in Dharapuram Taluk of Tiruppur District

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

Earthwork Excavating and depositing on banks with initial lead of 10m and lift of 2m 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 (SS20B) hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel stoney earth and earth mixed with small size boulders and soft disintegrated rock, laterite, soft rock or kankar not requiring blasting etc., complete complying with standard specification and as directed by the departmental officers. (Open Excavation )

SDR - (Not requiring blasting) - Earthwork excavating for Foundation and depositing on bank with initial lead of 10m and initial lift of 2m in soft disintegrated rock, laterite, soft rock or kankar, not requiring blasting inclusive of shoring strutting, bailing out water wherever necessary etc., complete complying with standard specification and as directed by the departmental officers - Open excavation

SDR - (Not requiring blasting) - Earthwork excavating for Foundation and depositing on bank with initial lead of 10m and initial lift of 2m in soft disintegrated rock, laterite, soft rock or kankar, not requiring blasting inclusive of shoring strutting, bailing out water wherever necessary etc., complete complying with standard specification and as directed by the departmental officers - Narrow excavation

MR (Not requiring blasting) - Earthwork excavating for Foundation and depositing on bank with initial lead of 10m and initial lift of 2m in medium rock and dense medium rock not requiring blasting inclusive of shoring, strutting, bailing out water wherever necessary etc., complete complying with standard specification and as directed by the departmental officers - Open excavation.

MR (Not requiring blasting) - Earthwork excavating for Foundation and depositing on bank with initial lead of 10m and initial lift of 2m in medium rock and dense medium rock not requiring blasting etc for foundation including refilling the sides of foundation with excavated earth shoring strutting and bailing out water wherever necessary, well rammed consolidated and depositing the surplus earth in places as shown by the departmental officers and clearing, levelling the site etc., complete complying with standard specification and as directed by the departmental officers. (For Foundation Narrow excavation)

Hard Rock requiring Blasting - Earthwork excavating for Foundation and depositing on bank with initial lead of 10m and initial lift of 2m in Hard rock requiring blasting measured in solid including blasting and stacking, etc., inclusive of shoring strutting, bailing out water wherever necessary etc., complete complying with standard specification and as directed by the departmental officers - Open excavation.

Hard Rock requiring Blasting - Earthwork excavating for Foundation and depositing on bank with initial lead of 10m and initial lift of 2m in Hard rock requiring blasting measured in solid including blasting and stacking etc for foundation including refilling the sides of foundation with excavated earth shoring strutting and bailing out water wherever necessary, well rammed consolidated and depositing the surplus earth in places as shown by the departmental officers and clearing, levelling the site etc., complete complying with standard specification and as directed by the departmental officers. (For Foundation Narrow excavation)

Providing 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 90cm x 60cm stiffened with MS angle of size 25mm x 25mm x 3mm laid over silver oak joists of size 10cm x 6.5cm spaced at 90cm 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 conveyance of all material to the site including all labour charges and incidental charges etc., complete complying with standard specifications and as directed by the departmental officers. (Nominal strutting)

Supplying and erecting centering for sides and soffits including necessary supports and strutting up to 3.29m height for vertical / sloped surface as detailed below with all cross bracings using mild steel sheets of size 90cm x 60cm and 10BG Stiffened with welded mild steel angle of size (25x25x3)mm laid over silver oak joists of size 10x6.5cm spaced at about 90cm c/c and supported by casuarina props of 10cm to 13 cm Dia spaced at not more than 75cm c/c etc., complete complying with standard specifications and as directed by departmental officers. Scaffolding and centering charges for the structural components is including the cost and conveyance of all materials to the site including all labour charges and incidental charges etc., complete (for vertical wall surface) Above Ground Level Centering upto 3.29 m height

Centering above 3.29 - 4.29 m height

Centering above 4.29 - 5.29 m height

Centering above 5.29 - 6.29 m height

Supplying and fabricating 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 bar, cover blocks and all other incidental charges, etc as directed by the departmental officers.

Providing and laying in position, Plain Cement concrete of grade M15 (Design Mix) with well graded aggregates and the nominal maximum size of HBGS jelly 40 mm and down graded (60% of 40mm and 40% of 20mm) confirming to IS Specified grading and mixing the ingredients by mixer machine (to produce concrete of the specified characteristic strength of 15N/mm2 at 28 days) including dewatering by boiling/pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts, vibrating, compacting, and finishing the surface watering, curing for various depth and height below and above ground level so as to attain the profile and strength specified in the drawing complete complying with standard specification and as directed by the departmental officers. Below ground level upto 1.5 m

Below ground level 1.50 m to 4.50 m depth

Above ground level upto 4.50 m height

Above ground level from 4.50 m height

Providing and laying in position, standardised Reinforced Cement Concrete Mix M-20 Grade in accordance with IS 456-2000, using 20mm and downgraded 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 (5cu.m) 7730kg. of 20mm machine crushed stone jelly and with about (3.3cum) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79cum) 7670kg.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. Below ground level upto 1.5m depth

Below ground level 1.5 m to 4.5 m depth

Above ground level upto 4.5 m

Providing and laying in position, Plain Cement concrete of M15 grade (Design Mix) with well graded aggregates and the nominal maximum size of HBGS jelly of 20mm and confirming to IS specified grading and mixing the ingredients mixer machine (to produce concrete of the specified characteristic strength of 15N/mm2 at 28 days) including dewatering by bailing/pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts, vibrating, compacting and finishing the surface watering, curing for various depth and height below and above ground level so as to attain the profile and strength specified in the approved drawing complete complying with standard specification and as directed by the departmental officers. Below ground level upto 1.5m depth

Rough stone dry packing for Revetment using new hard granite stones obtained from approved quarries including cost of wedges for filling the gaps, including cost and conveyance of all materials and all labour charges etc., complete complying with standard specification and as directed by the departmental officers. Using New stones 60%

Using available stones at site of work 40%

Drilling of holes of 32mm diameter size in the hard rock surface to the 2.00m depth spacing 3.00m c/c in a staggered manner , complete complying with standard specifications and as directed by the Engineer in charge.

Supplying and fixing in position of R.T.S. rod 25mm dia Anchor rod to a depth of 2000mm inside the drilled holes and above hard rock 600mm height and 450 mm bend. The drilled holes should be cleaned by air or water jet. the holes filled with cement sand mortar1:2 with water cement ratio 0.33 should be pushed in to the 32mm dia of each holes while the holes are still wet after cleaning than 25mm dia steel anchors should be pushed in the hole. The cost including cost of steel, charges for cutting, fixing with cement slurry grouting, curing etc., complete complying with standard specifications and as directed by the Engineer in charge of the work.

Supplying and fixing in position of R.T.S. rod 12 mm dia Anchor rod to a depth of 2000mm inside the drilled holes and above hard rock with lap of 600mm height . The drilled holes should be cleaned by air or water jet. the holes filled with cement sand mortar1:2 with water cement ratio 0.33 should be pushed in to the 32mm dia of each holes while the holes are still wet after cleaning than 25mm dia steel anchors should be pushed in the hole. The cost including cost of steel, charges for cutting, fixing with cement slurry grouting, curing etc., complete complying with standard specifications and as directed by the Engineer in charge of the work.

Supplying and Fixing PVC Water Stopper of 300m width for Construction / Contraction joints from apron floor body wall to Down stream cut off wall concrete including labour charges for cutting, jointing the PVC Water Stopper and fixing proper position and Alignment etc., complying with standard specifications and as directed by the departmental officers.

Supplying and fixing PVC pipes of 110 mm Dia with ISI standard 6 kg/cm2 filled with no fine concrete for weep holes (Pressure relief arrangements) including cost of material, and labour changes etc complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing in position of bitumen Pad 20 mm thick for Construction / Contraction joints in Plain Cement Concrete and Reinforced Cement Concrete and including labour charges for cutting, fixing in proper position and removing bitumen pad up to 40 mm deep and filling with asphalt in joints. complete complying with standard specification and as directed by the departmental officers. (at 0.30 m interval)

Regrading the river bed including jungle clearance deploying the heavy machinery on hour basis including cost of hire charges, fuel, labour etc complete compyling with standard specifications and as directed by departmental officers complete compyling with standard specifications and as directed by departmental officers

Extra watering and consolidation by power roller for formation of new bund / flood bank using the excavated earth etc., complete

Earthwork in all soils except hard rock requiring blasting and conveyed to the working site from the borrowed area for formation new bund / flood bank by deploying earth moving machineries and tipper including benching, formation of bunds, breaking clods, sectioning etc., The rate includes lead, extra watering and consolidation using power roller, hire charges etc., in complete complying with standard specification and as directed by the departmental officers.

Supply and fixing of Boundary stone of standard design and drawing as per IRC:25-1967, including painting and numbering etc., and all other incidental charges etc., complete.

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