Construction of 52 MLD Intake Tower in Puzhal Lake near Surapet in Madhavaram Taluk of Chennai District.

Clearing Heavy jungle including removal of stumps roots and disposing of the same etc complete as directed by the Engineer in charge of works and as per the technical specifications.,

Dismantling, clearing away and carefully stacking materials useful for re-use for any thickness of Reinforced cement concrete etc complete complying with standard specifications and as directed by the departmental officers

Earth Work excavation for foundation in all soils and sub soils and to full depth as may be directed by the Departmental Officers except hard rock requiring blasting including shoring, strutting and baling out of surface water wherever necessary and refilling the sides of foundation with excavated soil in layers not exceeding 15 cm thick, well rammed and consolidated and depositing including all initial leads and initial lifts, etc., complete complying with standard specifications and as directed by the departmental officers.

Earth work in all soils except Medium rock / hard rock requiring blasting and conveying for formation of bund with a lead of 0 to 10 Km or part thereof deploying earth moving machineries and tippers excluding benching, formation of bunds, breaking clods and sectioning and old embackment slopes etc complete complying with standard specifications and as directed by the departmental officers

Earth work in all soils except Medium rock / hard rock requiring blasting and conveying for formation of bund with a lead of 0 to 100 m by deploying earth moving machineries and tippers excluding benching, formation of bunds, breaking clods, ramming, sectioning and including conveyence the exavation earth in the low lying area with lead and levelling etc., complete complying with standard specifications and as directed by the departmental officers.

Conveying the excavated surplus earth with a lead of 5KMMR of by using tippers including loading, unloading, dumping in low lying areas spreading and leveling as shown by the departmental officers, etc., complete complying with standard specifications and as directed by the departmental officers.(Coffer Dam)

Supplying and erecting centring for vertical plain / RCC concrete walls of supply channel, retaining wall etc of follwing height with necessary supports, all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3 mm for bearing laid silver Oak / Country wood joist of size 7.50 cm x 5.0 cm spaced @ about 90 cm C / C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C / C, etc., complete complying with standard specifications and as directed by the departmental officers (Vertical centering)

Vertical Centering upto 0.90 m height

Vertical Centering upto 1.80 m height

Vertical Centering upto 2.70 / 3.0 m height

Vertical Centering 3.0 m to 4.0 m height

Vertical Centering 4.0 m to 5.0 m height

Vertical Centering 5.0 m to 6.0 m height

Vertical Centering 6.0 m to 7.0 m height

Vertical Centering 7.0 m to 8.0 m height

Vertical Centering 8.0 m to 9.0 m height

Vertical Centering 9.0 m to 10.0 m height

Supplying and erecting centering for sides and soffits and strutting upto 3.0 m height for plane surfaces such as RCC works etc, with all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3 mm for bearing laid silver Oak / Country wood joist of size 10 cm x 6.5 cm spaced @ about 90 cm C / C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C / C, and removing the same without any damages etc., complete complying with standard specifications and as directed by the departmental officers. (Horizontal centering)

Slab Bottom

Rectangular Beam, Iintels

Round Coloumns

Supplying, fabricating and placing in position of Mild Steel or Ribbed Tor Steel upto 16mm dia for all RCC works as per design & drawing given including cost of steel, binding wire and labour charges for cutting, bending, laying in position and tying with binding wire, etc. complete complying with standard specifications and as directed by the departmental officers

Supplying, fabricating, Providing and placing in position of permanent MS liner 6 mm thick for depth 1.10 m of 1200 mm dia Bored cast in situ piles setting out as per detailed drawing. Rate includes all charges for procurement, storage, transporation of MS sheet, stiffners, fabrication, welding, bending, cutting at the required level, erection & driving by using rig, labour charges, maternals, tools & plants, handling etc complete complying with technical specifications and as directed by the Engineer incharge

Providing and placing in position of plain cement concrete M 10 grade using Sand and hard blue granite broken stone jelly of size 40 mm size mixing with mixer machine including the cost of bailing/pumping out the surface water wherever necessary laying the concrete in layers of not exceeding 15 cm thick, compacting, consolidation by finishing, watering, curing, etc., complete complying with standard specifications and as directed by the departmental officers

Supplying and laying of ready mix for M 20 grade of concrete having charaterstic strength not less than specified in the IS 456 - 2000 using Ordinary portland cement with minimum cement content of 250 Kg / cum confirming to IS 8112. Coarse aggregates having a specific gravity of 2.60 using 20 mm down graded hard blue granite broken stone jelly and fine aggregate without fly ash as per IS 383 - 1970 ( 2007 ) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 - 1959 ( 2004 ). The initial & final setting time confirming IS 12269 - 1987 ( 2004 ) with maximum temperature of concrete at the time of placing should not exceed 32 0 C. The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103 - 1979 [ usual admixture - Air entraining & water reducing ] including the cost of hire charges for pump and pumping charges to the required locations & levels as specified by the Engineer - in - charge,. laying, compacting, consolidation by by using vibrators, finishing,watering, curing, testing charges as per IS 456 - 2000, 4031 - ( Part 3 & 6 ) / 1988 ( 2005 ) & ( Part 2 ) / 1999 ( 2004 ) and 516 / 1959 ( 2004 ), 4926 - 1976 ( 1990 ), mix design details to be got approved before commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering, shuttering and cost of reinforcement grills placed in position etc., complete complying with standard specifications and as directed by the departmental officers.(RCC Works)

Supplying and laying of ready mix for M 30 grade of concrete having charaterstic strength not less than specified in the IS 456 - 2000 using Ordinary portland cement with minimum cement content of 300 Kg / cum confirming to IS 8112. Coarse aggregates having a specific gravity of 2.60 using 20 mm down graded hard blue granite broken stone jelly and fine aggregate without flyash as per IS 383 - 1970 ( 2007 ) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 - 1959 ( 2004 ). The initial & final setting time confirming IS 12269 - 1987 ( 2004 ) with maximum temperature of concrete at the time of placing should not exceed 320C. The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103 - 1979 [ usual admixture - Air entraining & water reducing ]. Iincluding the cost of hire charges for pump and pumping charges to the required locations & levels as specified by the Engineer - in - charge,. laying, compacting, consolidation by using vibrators, finishing, watering, curing, testing charges as per IS 456 - 2000, 4031 - ( Part 3 & 6 ) / 1988 ( 2005 ) & ( Part 2 ) / 1999 ( 2004 ) and 516 / 1959 ( 2004 ), 4926 - 1976 ( 1990 ), mix design details to be got approved before commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering and shuttering placed in position etc, complete complying with standard specifications and as directed by the departmental officers. (RCC work)

Driving holes for Piles of finished diameter of 600 mm, Pile length 11.50 mm in all kinds of soils, all types of rocks, soft rock, weathered rock, hard rock to the required depth using hydraulic rigs with vertical sludge recycling pump of 20 HP using 53 KV diesel generator including all tools and Plants with necessary accessories for applying Bentonite slurry through pump from tank with required density and by using light crane for lowering and placing the reinforcement cage including lap, welding of reinforcement cage as required with all leads and lifts, interlacing of pile reinforcement into pile cap. Including the cost of disposal of spoils/ slush etc away from the work site without any obstructions to the work with all leads and lifts, labour , pumping , bailing etc, and includes the cost of all preparatory works in forming and maintaining of working platform with their own cost and timely removal therof to the satifaction including dismantling the laitance concrete upto the cut off level for monolothic concreting of pile cap, Providing stacking places, mobilisation and transferring / reinstalling of piliing equipements/ asscessories etc from one location to another with necessary power / service connections as required etc, complete complying with the technical specifications and as directed by the engineer in charge. The rate is excluding of RMC Cement Concrete and steel which will be paid separately and this item is only for driving pile and lowering reinforcement work.

Shoring, and Strutting with sheet piles of size width 400 mm x height of 5 m x thickness of 900 mm as per IS 2314-1986 by driving on both sides of the trench from ground level up to the required depth and connecting the above sheet piles by horizontal strutting with sheet piles at an interval of 1.0m, fixing the sheet piles by connecting the horizontal strutting with casurina poles of 8cm to 10cm dia at 1.50m interval and including removing the sheet piles after the pipelines are laid, jointed, tested, and stackingit safely for other uses. It includes the cost of sheet piles and casurina poles including labour charge for erecting the sheet piles, driving the sheet piles, removing the sheet piles, fixing casurina poles,etc., complete and all other incidental charges for the depths. 0 to 3 m

Supplying and filling with clean River 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 epartmental officers

Brick work in following Cement Mortar using best quality Fly ash Brick of size 230x110x70mm with class designation of 7.5 conforming to IS 13757-1993 or IS 12894-2002 for foundation and basement including Cost of Mortar Plasticizer, curing,etc., complete complying with standard specification and as directed by the departmental officers. Brickwork shall be done as per IS 2212-1991 adopting English Bond generally. other type of bond shall be done as directed by the Executive Engineer in charge.

Plastering with cement mortar 1:4, (one cement and four P sand) 12 mm thick including watering,finishing, curing, etc., complete complying with standard specifications and as directed by the departmental officers

Painting the walls with Two coats with first class quality Exterior Emulsion paint of approved colour over a priming coat including thorough scraping, clean removal dirt. The rate includes cost of brushes, sand paper, putty wherever required and neat finishing etc., complete complying with standard specifications and as directed by the departmental officer (colour & shade of the cement paint shall be got approved by the Executive Engineer before use of work)

Dewatering using 20 HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete complying with standard specification and as directed by the departmental officers.

Refilling with excavated earth other than sand or loose soil etc., complete complying with standard specificaion ad as directed by the departmental officers

Painting new iron work with two coats of synthetic enamel paint of approved colour and quality over the existing primary coat in all floor including the cost of paint etc., complete complying with standard specifications and as directed by the departmental officers. (The paint to be used should be got approved by the Executive Engineer before use on the work).

Gravel backing for apron / revetment / retaining wall in layers not exceeding 15 Cm thick including stacking for premeasurement, watering, consolidation and trimming the top surface so as to receive the rough stones, etc complete complying with standard specifications and as directed by the departmental officers

Rough stone dry packing for apron and revetment using new stones obtained from approved sources including the cost of new stones wedges for filling the gaps, finishing, etc. complete complying with standard specifications and as directed by the departmental officers

Pointing with cement mortar 1:3 (One cement and three P sand ) to full depth including finishing, watering, curing etc. complete complying with standard specifications and as directed by the departmental officers (Flush pointing)

Supplying and fixing SS mesh of grade 316. The mesh shall be fabricated out of stainless steel flats of 50 x 10mm. The outer frame also shall be of 50 x 10mm fixed in the top of the intake well. The mesh shall be so fabricated and fixed in top portion of intake well open area.

Stainless Steel (Grade SS316) Grating in SS Mesh - 8Kg per sqm

Manufacturing, Supplying and Fixing of Stainless Steel Hand rails for staircase using 50mm dia 304L Grade Stainless Steel pipe of 1.60mm thick at required locations to a height of 900mm from finished floor level welded to 38mm dia Stainless Steel pipe post of 1.00mm thick as vertical at 900mm centre with 2 Nos. of 25mm dia intermediate horizontal stainless steel pipe of 1.60mm thick in between. The vertical pipe has to be welded to the 100 X 100 X 6mm MS base plate encased in the base concrete. The rate is inclusive of the charges for cutting, bending, welding, grinding, polishing, conveyance, electrical charges, etc. complete

Supplying & fixing M.S. grills for window and gate including one coat of primer with red lead etc. complete as directed.

Excavating of driving pit and receiving pit of size 3.00m (length) x 3.50m (breadth), depth upto 5m in all soil including shoring and strutting using 6mm tk MS Plate of size 3.50m x 3.50m usable for 10 operations and providing 16mm thickness MS plate of size 3.00m x 3.50m with 100mm x100mm x 12mm angles of 4m length for holding the MS plates for Thrust arrangements to receive the impacts during pushing operation of encasing pipe. Lowering the following size of MS encasing pipe by using Contractor’s crane and machineries and jointing MS pipes by welding, across the National Highways/State Highways/ Railways/Canal crossing etc and driving 326 the horizontal bore by pushing / jacking method (trenchless technology method) using contractor’s machineries such as cranes, jacks, jacking materials, generator, welding machineries, compressor, jack hammer and other equipments etc. without interfering and causing any hindrance to the movement of traffic or any other vehicles, without any disturbances to the railway/road/canal formation etc. including bailing / pumping of water where ever necessary without affecting any installation like water supply pipeline/telephone cable, electric cables etc. passing nearby area and scooping the earth inside the pipes and pit and depositing the surplus earth in a convenient place and leveling the site after completion of entire work as directed by TWAD Engineers. The rate includes the cost of driving pit, thrust bed/wall and receiving pit to the depth of om to 5m excluding the cost of MS pipes. site after completion of entire work as directed by TWAD Engineers. The rate includes the cost of driving pit, thrust bed/wall and receiving pit to the depth of 0m to 2m excluding the cost of MS pipes.

Outer Casing Pipe For 1000mm dia MS pipe for various thickness

For 700mm dia MS pipe for various thickness

Pipe Cost - 1000mm MS Pipe (20mm thick) - 1016x20 Pipe =36546+2198+3066+2044

Pipe Cost - 700mm MS Pipe (14.2mm thick) - 711x14.2 Pipe =18975.7+1567.3+2156+578

Fabricating, Supplying and fixing in position of steel glazed window (Two Leaves ) with the following specifications. Outer frames of windows made of ‘Z’ section F7D of size 33 x 25 x 3mm at 1.419 kg/ m and mullion ‘J’ section (F4B) of size 46x25x3mm at 2.28kg/m and shutter section of made of F7D of 33x25x3mm at 1.419 kg/m as specified in IS 7452/1990. Each openable shutter should not exceed a width of 600mm to enable separate operations and easy maintenance. The panel of the shutters to be covered with 3mm thick pin headed glass and fixed with 15x12mm teakwood beading of superior quality and fixed with shutter frames.2 numbers of Steel Offset Pivot hinges of size 3” and one number of handle to be fixed to each shutter at an appropriate height in window. suitable opening is left for its easy operation. a stopper square rod for handle is provided in the mullion section at suitable place to catch the window handle. each window shutter having an adjustable stay made out of 18 x 5mm at 0.70 kg/ m MS flat of length 320mm with three adjustable position. A matching peg is provided in the outer frame of the window at suitable place. 4 Nos. of hold fasts of 200mm length spliced at the ends are welded to the outer frame of the window. An MS square bar of 12mm size is welded to the inner face of the window at an equal interval interval not exceeding 100mm edge between them. All members are painted with one coat of anti-corrosive red oxide primer as directed by the departmental officers. All sections should be in confirmed with IS 7452/1990.The cost includes cost of all materials, labour charges and other incidental charges, etc., complete complying with standard specification and as directed by the departmental officers.

Fabricting Supplying and fixing in position Aluminium door Powder Coated of size 1.00mx2.10m having Single leaf openable shutter 1/3 panelled & 2/3 glazed with 10 mm thick aluminium grill of approved pattern and design and 12mm thick best quality both sides prelaminated particle board and 5.5mm thick plain glass shall be used for panelling withAluminium section of Outer Frame :101.60x44.45x3.18mm @ 2.319kg/m and Shutter frame of bottom rail : 100x44.45x2.50mm @ 1.974 kg/m,Top & Vertical rail : 50x44.45x2.50mm @ 1.292kg/m,Lock rail: 50x44.45x2.50mm @ 1.292kg/m,Aluminium clips:17.15x17.27x1.50mm @ 0.176kg/m and with required aluminum hinges, door stopper, rubber beading, PVC felt, handle for a length of shutter (both sides) of section: 100x30mm @ 0.988kg/m, locking arrangements, furniture fittings such as aluminium tower bolts-250x12mm - 1No., aluminium tower bolt 200x12mm - 1No., aluminium door stopper with rubber bush - 2Nos ., lock-1No.,Floor Spring - Each.,as per BIS standards including cost of all materials, labour charges and power consumption charges required for fabrication including chipping dismantling and making holes to the required extent in RCC in column/beam/masonry with power drill wherever neccessary and redoing the damaged portion to the original condition after fixing etc. complete complying with standard specification and as directed by the deparmental officers. All Aluminium section shall be used in electrically controlled condition in accordance with IS 1868/1962 for an average anodic film thickness of 15 microns and warranty for 5 years etc., complete complying with standard specification and as directed by the departmental officers.

Fabricating, Supplying and erection of Screw gearing steel shutters of size above upto 1.00 m width consist shutters of skin plate made out of 8mm thick mild steel plate and horizontally stiffened with 65x65x6mm mild steel Angle at an interval not more than 0.50m and vertical stiffeners made out of same section at an interval not more than 0.60m and provided with 8mm mild steel gusset plate of required size on both sides fastened with rust free bolts and nuts etc. Conveying the fabricated shutter by using lorries including loading, unloading and leading the shutter to the vent. Dismantling the eroded shutter and shuttering arrangements by using necessary gas cutting equipment. Erecting the new shutter and the shuttering arrangements in the vent in proper position by using necessary hoisting equipment. The shutter shall be painted with two coats of Anticorrosive black paint over one coat of Red Oxide Primer. The rate including cost of materials consumables, labours power charges, conveyance charges for all equipment required conveying the dismantled materials to the section stores, cost of petty civil works, trial operation of shutter and warranty for 5 years etc., complete complying with standard specification and as directed by the departmental officers.

Fabricating, supplying and fixing of 80mm dia Screw Rod made up of Mild Steel duly machined and fully threaded to suit the Head set Assembly and provided with required holes. Conveying and leading the screw rod to the worksite. Fixing the screw rod to the shutter gusset plate with required bolt and nut in proper alignment to the head set including dismantling the existing damaged screw rod, conveying and stacking at section store. The Screw rod should be painted with two coats of AC black paint over one coat of red oxide primer. The rate including cost of materials, labours, charges for all fabricating and hoisting equipments, conveyance charges for labours and materials and warranty for 5 years etc., complete complying with standard specification and as directed by the departmental officers.

Fabricating, supplying and fixing of Shutter Groove Angle made up of 100x100x10mm Mild Steel angle for required height including welding hold+D350 fast of size 40x40x6mm Mild steel angle 3 Nos on both sides and conveying and leading the groove angle to the vents. Fixing the angle to the grooves in proper alignment including dismantling the existing damaged groove angles, conveying and stacking at section store. The groove angle should be painted with two coats of AC black paint over one coat of red oxide primer. The rate including cost of materials, consumables, labours, charges for all fabricating and hoisting equipments, conveyance, petty civil works and warranty for 5 years etc., complete complying with standard specification and as directed by the departmental officers.

Providing new 3T capacity worm gear box assembly consist of cast iron top and bottom plates, worm nut made up of pig iron, worm shaft made up of EN8 steel rod and two numbers of thrust bearings. The top and bottom plates machined to suit the worm nut and shaft. The worm nut threaded inside to suit the 63mm dia screw rod and the outer side formed with helical teeth cutting to suit the worm shaft. The worm shaft machined to the required shape and size and provided with helical teeth to suit with the worm nut.The assembly fixed with two numbers of thrust bearing one on top and another on bottom of the worm nut and fastened with required bolt and nuts. The operating key made with 80mm square rod shaping with wire cutting machine and welded with operating handle made up of 32mm dia steel rod for required length. The gear box is to be rest on the top of MS stand made up of 75x75x8mm MS angle and the top covered with 16mm thick MS plate and the stand fixed on the 150x75mm MS channel fixed over top of the beams in platform. The gear box align with the screw rod and fixed with required bolts nuts etc., complete and as directed by the departmental officers. Painting the hoisting arrangements with two coat of aluminium oxide paint over two coat of zinc rich primer The rate including cost of worm gear, cost of all materials required, labour charges, process charges like gas cutting, welding, machining, milling, labour charges for dismantling, loading, lifting, unloading, transport, erection, charges for equipment’s like derrick, chain pulley block, conveyance charges of to and fro of equipment’s and labours to the site including cost of trial operation of the Shutter, inclusive of all taxes, etc., complete and as directed by the departmental officers and warranty for 5years etc., complete complying with standard specification and as directed by the departmental officers.

Fabricating, Supplying and fixing of Top Beam made up of 200x100mm (ISMB 200) duly drilled to suit the Head Set Assembly with required bed bolt made out of 25mm mild steel round rod duly threaded with suitable anchorage arrangements to a height of 0.60m with necessary Fish plate made out of 16mm mild steel plate of size 0.20x 0.30m 2 Nos with required holes.Conveying and leading the top beam arrangements to the work site. Fixing the top beam arrangements at the top of the vent in correct position including dismantling the existing eroded top beam, conveying and stacking and the section stores. The top beam should be painted with two coats of AC black paint over one coat of Red Oxide primer. The Rate including cost of materials,labours, charges for all fabricating and hoisting equipments, cost of petty civil works conveyance charges for labours and materials and warranty for 5 years etc, complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing of Bottom Flat Rubber seal with Mild Steel Flat plate throughout the length of Rubber seal and fitted with the existing structure by means of Mild Steel Washers, Nuts and Bolts including dismantling the old corroded bolts by cutting, removing old flats and hardened or damaged old rubber seals beam, then conveying, loading and unloading and stacking to section store, etc.., complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing of Side rubber seal - Z type with Mild Steel Flat plate throughout the length of Rubber seal and fitted with the existing structure by means of Mild Steel Washers, Nuts and Bolts including dismantling the old corroded bolts by cutting, removing old flats and hardened or damaged old rubber seals beam, then conveying, loading and unloading and stacking to section store, etc.., complete complying with standard specification and as directed by the departmental officers.

GST 18 % in Figures

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