Dam Rehabilitation and Improvement works of Vennirar Dam (Civil, Mechanical and Electrical works) in Tirunelveli Generation Circle, Theni District, Tamil Nadu under the World Bank funded DRIP (Phase II and III)

Amount

Earthwork excavation and depositing on bank with initial lead of 10 m and initial lift of 2 m in hard stiff clay , stiff black cotton hard red earth shales murram gravel stoney earth , earth mixed with small size boulders and hard gravelly soil.

Earthwork excavation and depositing on bank,

In hard stiff clay, stiff black cotton soil hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders/pebbles and hard gravelly soil and transporting and dumping with a lead of 100 m with all leads, lifts, etc.., complete as directed by Engineer.

In SDR not requiring blasting, stacking, with an initial lead of 10 m and lift of 2 m and transporting and dumping the same up to a lead of 100 m with all leads, lifts, water diversion arrangements etc., complete.

In medium and dense medium rock by drilling for widening the pavement, stacking, with an initial lead of 10 m and lift of 2 m and transporting and dumping the same up to a Head load of 100 m with all leads, lifts, water diversion arrangements etc., complete.

Removing hard rock by wedging, chiseling and trimming to proper shape where blasting is prohibited with extra lead of 100 including all labour and tools etc., complete.

Laying PCC 1:3:6 for foundation of protection wall , road side drain, etc., using 20 mm hard broken stone including cost of all materials, labour, lead, lift, curing, etc., complete.

Providing and fixing in position 12mm thick bitumen impregnated fibre board conforming to IS:1838 including cost of primer, sealing compound in expansion joints in concrete road, including cost of materials, labour, lead, lift finishing etc., Complete.

Filling with Red Gravel for Road Side Berm watering and consolidated including cost of all materials, lead, lift, labour, etc., complete.

Providing and placing in position plain cement concrete 1:2:4 for protection wall , road side drain using broken hard granite coarse aggregate size of 20 mm and down graded including placing in layers and vibrating, curing, shuttering charges, finishing the surface with all leads and lifts, labour, etc., complete as per the direction of Engineer and complying with standard specification.

Rough Stone dry packing for aprons and revetment including watering, consolidation and cost of materials labour leads, lift, etc., complete

Plastering with cm 1:3, 12 mm thick for floor plastering including cost of all materials, lead, lift etc., complete.

Clearing the site by removal of scrub Jungle including cost of all leads and lift , disposing off as directed by the Engineer at site.

Reaming the existing vertical drainage shaft of 220 mm dia. to the entire depth by rotary drilling from top of dam to the drainage gallery level, inclusive of all machineries, equipment, consumables, other materials required for the work, labour charges for operation, cleaning the drilled holes, transport charges for machinery and shifting them to different location etc., complete as directed by the Engineer at site.

Reaming the choked foundation shafts inside the gallery by using special type low Hight drilling machine including cost of all materials, transporting charges, lighting and water supply arrangements, etc., complete as directed by Engineer at site.

Removal of calcination from the gallery gutter portion in the floor including cost of labour, lead, lift, transporting the debris away from the site etc., complete.

Providing Poly Ironite ceramic Cementitious (PICC) or equivalent for masonry joint filling to a depth of 5 cm including preparing of 'T' joint of masonry by removing existing loose portion of stone masonry by breaking (using manual / mechanical means ) removing existing embedded M.S. bar, racking out the masonry joints of required depth, clean with special chemical Steripure 100 with pressure water jet for removing of algae fungi, apply bond coat before PICC application and top coat after finishing, complete as per specification including cost of all materials, machinery, labour, scaffolding, hire charges of cranes, insurance charges, transportation with all leads and lifts and any other incidental charges as directed by the Engineer in charge.

Providing cementitious 1:3 mortar for filling of big cavity to the masonry joint up to 30 cm depth complete as per specification including coat of all materials, machinery, labour, scaffolding, hire charges of cranes, insurance charges, transportation with all leads and lifts as directed by the Engineer in charge.

Grouting the holes by Poly Cementitious material as per requirement to reduce the porosity of masonry surface and to increase the strength of structure using grouting m/ c, mixer, etc. and all relevant safety with all lead and lifts, etc. Complete as per specification and as directed by Engineer in charge.

Chipping the loose flush pointing and removing old cement motor joint, removing the loose materials, clearing the joints to a minimum depth of 50 mm, packing and pointing with cm 1:3 for 50 mm depth D/S face of dam including cost of all materials, working platform, rope, ladder, T& P, labour charges for operating hanging platform, curing etc. Complete.

Providing Scraping, cleaning and Special coating (Epoxy viz. Nitobond EP are its approval equivalent treatment) on the Downstream side of the Spillway as per specification including cost of all materials, machinery, labour, scaffolding, hire charges of machineries transportation with all leads and lifts and any other incidental charges as directed by the Engineer in charge.

Providing and placing in position Reinforced Cement Concrete M 50 grade using hard granite course aggregate (well graded) of nominal maximum size of 20 mm& 10 mm and down graded to I.S specified grading and mixing the ingredients in approved mixer including placing in layers and vibrating, curing, finishing the surface with all leads and lifts, labour etc., complete for stilling basin as per the direction of the Engineer and complying with standard specifications.

Acrylic Gauge Plate :Supplying, fabrication, erection of structural steel frames with support in the steel rod, cutting, welding, etc., painting two coats of enamel over one coat of primer, fixing the Acrylic gauge plate of 6 mm thick, stickering the levels reading, fixing in the dam as instructed by the Engineer at site, including cost of all materials, labour, lead, lift transportation, etc., complete.

Cement washing with two coats with approved quality of cement to the prepared surface already including through scrapping, removal of weeds and fungus growth over the RR masonry wall and clearing the surface by water with soda lime and brushes including cost of all materials lead, lift etc., complete.

Providing screed concrete 50 mm thick for PCC 1:2:4 using 6mm HBG metal for weir top including cost of all materials, cleaning the surface including all labour, lead, lift, etc. complete.

Drilling 40 mm dia. Holes for required depth and grouting the same after placing of grip rods with cement slurry including cost of cement labour, lead, lift etc., complete, excluding cost of Grip rod.

Supplying, fabrication and fixing of 25 mm dia. RTS grip rods into rock / concrete with projection above rock as directed by engineer at site, cost of rods, all materials, lead, lift, etc., complete.

Supplying fabricating and fixing in position of MS /RTS rod for reinforcement including cost of steel binding wire, lead, lift, etc., complete.

RCC M20 Design mix using 20 mm metal including cost of all materials, dewatering charges, shuttering charges, placing in layers, vibrating charges, all labour, lead, lift, curing, etc., complete, but excluding cost of steel reinforcement as per the direction of the Engineer at site.

Colour washing using exterior emulsion two coats over one coat of Primer to the outer side of the dam & building structures including cost of all materials, labour. T & P etc. complete.

Supply fabrication and erection of Main Gate and Fencing Post using various sizes of structural steel including cost of cutting, bending, welding and grinding charges, transporting charges and two coats of Enamel painting over priming coat all materials, leads, lift and labour charges etc., complete for fencing post and gate near Dam area.

Supplying and laying using 50x50 mm opening of 10 Gauge thickness Galvanized Iron wire Chain link fencing with barbed wire 12 Gauge at top & bottom with including cost of binding wire and lead, lift etc., complete.

Supply and fixing of new suitable size single stem musical note rubber seal with good quality rubber and adequate hardness for all sides of the scour vent gate(Regular & Emergency) using new brass/SS cover plate, Stainless Steel bolt & nuts washers, etc.., complete after removing the old damaged rubber seal, cover plate, bolts and nuts, etc.., complete using gas cutting machineries and special tools & tackles without damaging the parent body of the gate and thoroughly cleaning the surface of the seating area as per the instruction of Engineer at site and also arresting the gate leakage to the permissible limit including the cost of deduction of retrieved materials which are taken by the contractor, cost of materials, dismantling, labour charges , lead, lift, etc. complete.

Overhauling and reassembling of guide rollers, filler valves, pulleys etc. of scour vent gate (Regular & Emergency)complete using whatever suitable size/type spare required such as bearings eccentric pin, seal aluminium, bronze bush spacer plate, gasket, spring etc. with good quality as per IS for ensuring the trouble free operation of the above said parts as per the instruction of Engineer at site including the cost of deduction of retrieved materials which are taken by the contractor, cost of materials, dismantling, labour charges ,lead, lift, etc. complete.

Cleaning the steel wire rope manually, melting the rope grease and re-greasing (Servo coat 120/140/190) for Scour vent gate (Regular & Emergency) and cleaning the floor area free from spilled rope grease after completion of re-greasing as per the instruction of the Engineer at site, including cost of all materials, labour charges, lead, lift etc., complete.

Overhauling and reassembling the hoisting mechanism such as Gear box, Gear coupling, plumber block, pinion, Gears, etc. of scour vent gate (Regular & Emergency) using suitable size spares required if any parts got damaged in it and then bring the entire hoisting assembly into service for trouble free operation as per the instruction of Engineer at site including cost of deduction for Buy-back of retrieved materials which are taken by the contractor, dismantling, materials, labour charges, lead, lift, etc. complete.

Supply, Fabrication and erection (laying) of chequered plate 8 mm thick and supports over spillway deck bridge and scour vent hoisting mechanism platform's chequered plate & hand rails, gear box and motor hood by using suitable steel structures and plates as per the instruction of Engineer at site including reduction of realization of scrap value which is to be taken away by the contractor as per the instruction of Engineer at site including cost of removal of the corroded steel structures, all labour charges, transporting charges, loading and unloading charges etc., complete .

Supply, Fabrication and erection of handrails at dam entrance, way to Vennirar weir bridge and approach to gallery by using suitable steel structures as per the instruction of Engineer at site including the cost of material, labour charges, transporting charges, loading and unloading charges etc., complete .

Painting: Applying of corrosion protection technology by Moisture Cure Urethane coating with EPOXY and polyurethane compound for primary coating using MIOZinc up to 50 microns, mid coating using MCU MIOMASTIC up to 75 microns and for top coat using MCU MIOTOPCOAT up to 75 micron should be applied of approved colour and quality after thoroughly cleaning, scraping and removing the old paint and rusted particles in the existing surface of the scour vent gate (Regular & Emergency) gate as per the instruction of the Engineer at site, including cost of materials, lead, lift, etc., complete.

Painting: Applying of corrosion protection technology by Moisture Cure Urethane coating with EPOXY and polyurethane compound for primary coating using MIOZinc up to 50 microns, mid coating using MCU MIOMASTIC up to 75 microns and for top coat using MCU MIOTOPCOAT up to 75 micron should be applied of approved colour and quality after thoroughly cleaning, scraping and removing the old paint and rusted particles in the existing surface of the scour vent gate hoisting structure area and deck bridge supports completely as per the instruction of Engineer at site including cost of materials, lead, lift, etc. complete.

Painting: Applying of corrosion protection technology by Moisture Cure Urethane coating with EPOXY and polyurethane compound for primary coating using MIOZinc up to 50 microns, mid coating using MCU MIOMASTIC up to 75 microns and for top coat using MCU MIOTOPCOAT up to 75 micron should be applied of approved colour and quality after thoroughly cleaning, scraping and removing the old paint and rusted particles in the existing surface of the dam top handrails and spillway deck bridge handrails completely as per the instruction of Engineer at site including cost of materials, lead, lift, etc. complete.

Painting: Applying of corrosion protection technology by Moisture Cure Urethane coating with EPOXY and polyurethane compound for primary coating using MIOZinc up to 50 microns, mid coating using MCU MIOMASTIC up to 75 microns and for top coat using MCU MIOTOPCOAT up to 75 micron should be applied of approved colour and quality after thoroughly cleaning, scraping and removing the old paint and rusted particles in the existing surface of the newly erected spillway deck bridge chequered plate as per the instruction of Engineer at site including cost of materials, labour, transportation etc., complete.

Painting: Applying of corrosion protection technology by Moisture Cure Urethane coating with EPOXY and polyurethane compound for primary coating using MIOZinc up to 50 microns, mid coating using MCU MIOMASTIC up to 75 microns and for top coat using MCU MIOTOPCOAT up to 75 micron should be applied of approved colour and quality after thoroughly cleaning, scraping and removing the old paint and rusted particles in the existing surface of the newly erected handrails at dam entrance, way to Vennirar weir bridge and approach to gallery as per the instruction of Engineer at site including cost of materials, labour, transportation etc. complete.

Supply, erection, testing, and commissioning of main LT Supply distribution panel with 415 V, 100 Amps TPN MCCB as incoming 415V, 63 Amps, TPN MCCB – 2 Nos, 415V, 63 Amps, TPN MCB – 3 Nos, 415V, 16 Amps, SPN MCB – 3 Nos of reputed make with ISI standard as out going feeders erected in a metal cabinet suitable for outdoor use as per ISI standard and internal wiring with adequate bus bar arrangement, metering arrangement including ammeter, voltmeter and ON/OFF indicating lamp etc. to the satisfaction of Engineer at site including cost of materials, labour, transportation, lead, lift etc. complete.

Supply, erection, testing, and commissioning of 415 V, 100 Amps TPN metal clad switch with rewireable fuse unit erected in a outdoor metal box of reputed make with ISI standard of adequate size with necessary supporting arrangements to the satisfaction of the engineer at site including cost of materials, labour, lead lift, etc. complete.

Supply, erection, testing, and commissioning of LT Supply distribution panel for lighting with 63 Amps, TPN MCB – 1 No as incoming and 415 V, 32 Amps, TPN MCB – 2 Nos, 32 Amps, SPN MCB – 5 no's as out going feeders with Over voltage/Under voltage protective device protector relay with over current protection of reputed make with ISI standard erected in a metal cabinet suitable for outdoor use as per ISI standard and internal wiring with adequate bus bar arrangement etc. to the satisfaction of the engineer at site including cost of materials, labour, lead lift etc. complete.

Supply, erection, testing, and commissioning of automatic street lighting panel with 63 Amps, TPN MCB – 1 No as incoming and contactors of adequate capacity of reputed make with ISI standard with digital clock and LDR control erected in a metal cabinet suitable for outdoor use as per ISI standard and internal wiring with adequate bus bar arrangement etc., to the satisfaction of the Engineer at site including cost of materials, labour, lead, lift, etc., complete.

Supply, erection, testing and commissioning of new 5 HP, 400/440 Volts, 980 RPM, squirrel cage induction motor double output or suitable design with terminal box of reputed make with ISI standard by replacing the existing failed motor with necessary coupling arrangements for coupling the motor with the existing gear box, alignment of the motor with gear box etc. to the satisfaction of the engineer at site including cost of materials, labour, lead lift etc. complete.

Supply, erection, testing and commissioning of limit switch of 415 V, 3 Amps rating with adequate number of contacts, outdoor type of reputed make with ISI standard at dam top with necessary supporting arrangements to the satisfaction of the Engineer at site including cost of materials, labour, lead, lift, etc., complete and less the cost of retrieved materials.

Overhauling, testing and commissioning of existing brake assembly used in the gate hoisting mechanism as per ISI standard, provision of new brake solenoid assembly for the existing brake assembly, replacement of worn-out parts if any, inspection and greasing of moving parts, painting of brake with good quality enamel paint etc. to the satisfaction of the Engineer at site including the cost of materials, labour, lead, lift etc., complete.

Supply, laying, testing and commissioning of new 4 core x 10 sqmm, 1100 V, PVC insulated, armoured LUG copper cable of reputed make with ISI standard with 8 SWG GI earth wire including cost of cable, 65 mm dia. UPVC pipe finolex make or equivalent , UPVC bend and chipping the concrete for adequate depth and width and filling the portion with concrete after laying the cable to the satisfaction of the engineer at site including cost of materials, labour, lead lift etc. complete.

Supply, laying, testing and commissioning of new 4 core x 4 sqmm, 1100 V, PVC insulated, armoured, multi stranded, LUG copper cable of reputed make with ISI standard , 8 SWG GI earth wire, 40 mm class 3 (6 kg/sqmm) UPVC pipe of finolex or equivalent make with ISI, UPVC fittings, 8 SWG GI wire and laying the cable in open / concealed wiring as required at dam top to the satisfaction of the Engineer at site including cost of materials, labour, lead, lift, etc., complete and less the cost of retrieved materials.

Supply, laying, testing and commissioning of new 4 core x 2.5 sqmm, 1100 V, PVC insulated, armoured, multi stranded, LUG copper cable of reputed make with ISI standard, 14 SWG GI earth wire, 32 mm class 3 (6/10 kg/sqmm) UPVC pipe of finolex or equivalent make with ISI, UPVC fittings, laying the cable in open / concealed wiring as required at dam top to the satisfaction of the Engineer at site including cost of materials, labour, lead, lift, etc., complete and less the cost of retrieved materials.

Supply, erection, testing and commissioning of new 48 watts, 230 V, LED street light outdoor fitting of Phillips / Crompton / Havells or equivalent make with ISI standard, 15' street light pole fabricated from 3" MS class B pipe for bottom 2/3 length and 2' MS class B pipe for top 1/3 length and welded with 300x300x6 mm MS base plate with four Nos. hole to suit 16 mm bolt, rib, supporting pipe 0.3 m length, outdoor terminal box of size 250x200x150 mm made of 16 SWG CRCA sheet with powder coated siemens gray painting with terminal blocks of adequate capacity and adequate gland holes at bottom, connecting the street light fitting to the terminal box with 3c x 2.5 sqmm flexible copper cable, earthing of the street light pole and coping concreting of the pole at the dam top to the satisfaction of Engineer at site including the cost of materials, labour, lead, lift etc. complete and less the cost of retrieved materials.

Supply, erection, testing and commissioning of new 48 watts, 230 V, LED street light outdoor fitting of Phillips / Crompton / Havells or equivalent make with ISI standard, supporting pipe , clamp for fixing the fitting with the existing pole for dam area lighting to the satisfaction of Engineer at site including the cost of materials, labour, lead, lift etc. complete.

Supply, erection, testing and commissioning of new 230 Volts, 30 Watts LED flood light water tight fitting (IP 65) of Philips, Havells, Crompton Greaves reputed make with ISI standard with necessary clamping arrangements on wall or ceiling with PVC unsheathed copper leads from weather proof IP65 terminal box to the fitting and all accessories to the satisfaction of Engineer at site including the cost of materials, labour, lead, lift etc., complete.

Supply, erection and testing of new single rod maintenance free earthing electrode of ¾'', 10' length copper bonded steel rod, earth pit treatment by Ground enhancement material (GEM), terminal connection made by CADWELD PLUS or equivalent Exothermic method, interconnecting the earth pits by 8 mm dia. copper bonded steel rod etc. confirming to respective IEC standard by excavation of earth pit, earth pit treatment, necessary masonry work with man hole cover, measuring the earth resistance, painting the earth pit cover with double coat green enamel paint, numbering, writing the measured earth resistance on the cover etc. near the power room to the satisfaction of Engineer at site including the cost of materials, labour, lead, lift etc., complete.

Supply and laying of new 25 x 6 mm GI flat for earthing by clamping on the wall or floor as per ISI standard to the satisfaction of the Engineer at site including cost of materials, labour, lead, lift etc., complete.

Supply and fixing of new cable gland and copper socket of reputed make with ISI standard and termination of the electrical connections and gland earth connection to the satisfaction of the Engineer at site including the cost of materials, labour, lead, lift, etc., complete.

For 4 x 10 sqmm LUG copper cable

For 4 core x 4 sqmm LUG copper cable

For 4 core x 2.5 sqmm LUG copper cable

Supply, erection, testing and commissioning of Controlled streamer emission based Advanced Lightning Protection System 3000 INTCPT MK IV SS , CVM ( Collection Volume Method) Air Terminal made of non-corroding stainless steel with a curved conductive surface of minimum thickness for air terminations as defined in IEC61024 / UL 96 / IEEE 998 standards, suitable mast of 5 meter length, 40 mm dia. made of Aluminium, fixing accessories for fixing the Air terminal, Electro Mechanical Lightning Event Counter to register every strike between 2000 A to 100 kA for a 8/20 micro second peak current, Maintenance Free radial Earthing system with 4 Nos. copper bonded steel earth electrodes with Nickel bonding of size 5/8 Inch x 5 feet length with UL certification (UL 467) having minimum molecular bonding of 250 microns, environmental safe ground enhancement material ( GEM ) shall be applied as per requirement around the earth electrodes to reduce soil resistivity, interconnecting the earth pits by 8 mm dia. copper bonded steel rod as per requirement, terminal connection made by CADWELD PLUS or equivalent Exothermic method, test Link box for Maintenance purpose to the satisfaction of the Engineer at site including the cost of materials, labour, lead, lift, etc., complete

Supply of single core, 70 sqmm insulated FRLS flexible copper cable of reputed make with ISI standard and fixing accessories to the satisfaction of the Engineer at site including the cost of materials, labour, lead, lift, etc., complete.

Supply, erection, testing and commissioning of warning system on the dam top to fore-warn the down stream inhabitants before release of high discharge by using new 5 Kms range, horizontal, double mounted, 3 HP, 3 phase, 415 Volts electric siren and outdoor starter panel of reputed make with ISI standard and adequate rating with supporting and protection arrangements to the satisfaction of the Engineer at site including the cost of materials, labour, lead, lift, etc., complete.

GST for bidders within TamilNadu Note : Bidders within Tamil Nadu shall enter values separately for SGST and CGST and shall enter the value as "Zero" for IGST.

GST for bidders outside TamilNadu Note: Bidders outside Tamil Nadu shall enter value only for IGST and shall enter the value as "Zero" for SGST and CGST .

Bidder Name

T.Narasimhan