OandM Water Supply SchemesCWSS to Nattika FirkaAnnual maintenance 400mm Premo Gravity Main from Agastheswaram Temple to Mathilakam Sump Under Mathilakam Section

Amount

Part-1 Raod restoration

15.43.2:Dismantling manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer -in-Charge:Bituminous road

100.59.2:Refilling the trenches with a wet mix of close graded granular materials (Stone aggregate - 25mm nominal size - 17.5%, Stone aggregate - 10mm nominal size - 17.5%, Crushed Stone - 2.36mm to 12.5mm - 25%, Stone chippings / screenings - 4.75mm nominal size - 20%, Stone chippings / screenings - 150 micron nominal size - 20%), mixing properly after adding sufficient quantity of water, refilling in layers not exceeding 150mm, compacting properly at Optimum Moisture Content with Surface Plate Vibrator and disposing the excavated material etc. complete, including traffic control, providing caution boards and as per direction of Engineer-in-charge for road restoration works in pipeline leak sites.

4.1.5:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size)

16.83:Taking out existing CC interlocking paver blocks from footpath/ central verge, including removal of rubbish etc., disposal of unserviceable material to the dumping ground, for which payment shall be made separately and stacking of serviceable material within 50 metre lead as per direction of Engineer-in-Charge.

16.84:Laying old cement concrete interlocking paver blocks of any design/ shape laid in required line, level, curvature, colour and pattern over and including 50 mm thick compacted bed of coarse sand, filling the joints with fine sand etc. all complete as per the direction of Engineer-in-charge. (Old CC paver blocks shall be supplied by the department free of cost.)

Part 2- Working charges

OD235671/2023-2024:Supplying fabricated of 400mm mechanical collar joint using 8mm thick MS plate , one end suitable for 400mm premo pipe and other end suitable for 400mm DI pipe ,40cm long including. the cost of all materails,rubber ring, nuts and bolts, labour charges ,etc.

OD235672/2023-2024: supplying fabricated MS split clamp suitable for 400mmPrimo pipe Socket leak using 32 mm ms square rod at both in sides bend in to semi circular shape with bolt legs 16 nos on sides ,8 nos at end for bolting with 8 nos ,16 mm Dia bolts 50 cm long and 8 nos ,12mm dia 10cm long bolts including stiffening of bolt legs chamfering the edges 400 mm,painting two coats including cost of priming coat etc as per standards

OD235673/2023-2024:Repairing leakage/breakage of 400 mm Premo pipe line by using lead wool and hemp including charges for earth work excavation in all kinds of soil including tar / concrete cutting for for exposing leak portion of the pipe, operating control valves if any, testing the pipe line by operating the valves concerned, and rectifying the defects any noticed and without causing any damages to the existing utilities and refilling the trenches using excavated earth in layers not exceeding 20 cm depth including consolidating each layers by ramming, watering, charges for removing surplus soil from work site, including hire for tools and plant, conveyance of tools and materials, bailing out water, providing caution boards, lighting, watching, ribbon fencing, traffic controlling etc.complete as per the direction of Departmental officers excluding the cost of Hemp and Lead wool.

OD235674/2023-2024:Dismantling the bonnet of 400 mm CI ACP/PE/DF Sluice valves by loosening or cutting out the bolts, taking the spindle, box nut from the valve, checking for damages, supplying and conveying the damaged. box nut, spindle and the supplied GM material to engineering workshop, machining the gun metal, drilling hole, boring, threading and finishing box nut and machining the spindle to suit newly fabricated box nut, conveying back to site, fixing the box nut and spindle properly, supplying rubber insertion, refitting the bonnet, testing the pipeline to the required pressure and rectifying any defects noticed, without causing any damages to the existing pipeline and other utilities, including the hire and conveyance of tools and plant, bailing out water, providing caution boards, lighting, ribbon fencing, watching and traffic control and as per the direction of Departmental officers etc.complete and as per direction of the department officers etc. complete including cost of all materials

OD235679/2023-2024:Charges for replacing the damaged gland packing of 400 mm dia valves after adequate earth work excavation in all kinds of soil for exposing the valve for workability, removing the damaged gland packing, inserting and tightening with asbestoses rope using appropriate tools including bailing out water, lighting, watching etc. complete

OD235681/2023-2024:Valve Operation

OD240102/2023-2024:Conveying and fixing MS Split clamp/400mm Mechanical collar joints in joints using nut and bolt as per diredtion of Deptl Officer

Bidder Name

DETTY GEORGE