O and M - Water Supply Schemes-CWSS to Nattika Firka-Annual maintenance of 500mm premo gravity main leak rectification work under P.H section Mathilakam.

Amount

Road restoration works

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.)

100.59.3:Restoring the road surfaces by providing and laying factory made cold bitumen-aggregate pot-hole repair mix in two layers of 25mm thick (total 50mm thick), by cleaning the surface with brooms etc. to remove dust/debris/water etc, placing the premix, compacting properly with hand-rammer etc. complete, including traffic control, providing caution boards and as per direction of Engineer-in-charge for road restoration works in pipeline leak sites.

OD236542/2023-2024:Charges for replacing the damaged gland packing of 500 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

supplyt of materials

OD238419/2023-2024: Supplying fabricated of 500mm mechanical collar joint using 8mm thick MS plate , one end suitable for 500mm premo pipe and other end suitable for 500mm DI pipe ,40cm long including the cost of all materails,rubber ring,nuts and bolts, labour charges,etc

OD238420/2023-2024:Supplying fabricated 500mm split clamp suitable for 500mm primo pipe with all accessories

Leak rectification work

OD237055/2023-2024:Repairing leakage/breakage of 500 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.

OD237071/2023-2024:Valve Operation

OD237072/2023-2024:Charges for replacing the damaged gland packing of 500 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

OD237073/2023-2024:Dismantling the bonnet of 500 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

OD237478/2023-2024:Conveying and fixing MS Split Clamp/500mm Mechanical joint in Joints using nut and bolt as per the direction of Deptl. officer

Bidder Name

DETTY GEORGE