Annual maintenance of Sewer lines, Machine holes and repairs to Inspection chambers outside the security compound wall at NMPA for the year 2025-26 and 2026-27 - Re-tender

BOQ perticulars

Cleaning & Removal of blockages in Main/Branch sewer lines between the two machine holes with the Jet machine as required outside the security compound wall by mechanically including cost & conveyance of all materials , labour, T&P, all leads & lifts and disposing the materials as directed by the dept.

Removal of silt / Deslting of the Machine holes in the sewage disposal system using Desilting grab machine (Mechanical means) including loading, unloading, transportation, disposal of the removed silt/waste materials up to a distance of 2 Kilometers, all incidental charges, labour charges, vehicle driver etc., as directed by the department complete.(with quantity Minimum 4hours per trip)

Repairs to Machinehole for different depths including removal of debris, levelling the brick masonry, construction of brick masonry upto Ground level, providing CC coping alround the MH cover, plastering both inside and outside to the brick masonry and fixing of manhole frame and cover, curing, refilling with appurtenances complete. Upto 0.30m depth

Repairs to Machinehole for different depths including removal of debris, levelling the brick masonry, construction of brick masonry upto Ground level, providing CC coping alround the MH cover, plastering both inside and outside to the brick masonry and fixing of manhole frame and cover, curing, refilling with appurtenances complete.Repairs to Machinehole up-to - 0.60 m depth

Repairs to Machinehole for different depths including removal of debris, levelling the brick masonry, construction of brick masonry upto Ground level, providing CC coping alround the MH cover, plastering both inside and outside to the brick masonry and fixing of manhole frame and cover, curing, refilling with appurtenances complete.Repairs to Machinehole Upto - 0.90 m depth

Supply and fixing of SFRC machinhole cover (Heavy Duty) made as per IS to suit existing damaged machinhole cover after removing the debries from inside and outside the existing machinhole etc. with all lead and lifts.

Earth work excavation for pipeline trenches in all kinds of soils by mechanical means as per drawing and technical specifications, including setting out, construction of shoring, strutting, barricading, caution lights, bracing, using sight rails & bonding rods at every 100 mm wherever necessary as directed, removal of stumps and other deleterious matter, dressing of sides and levelling the bottom of trench to the extent required , utilising the available excavated earth locally for the work etc., and all other appurtenances complete in the following strata. Considering for all depths

Dismantling the damaged or collapsed Machinehole ,conical in shape, and reconstructing the same for the same dimensions, with machine made wire cut brick in CM 1:4 with ordinary portland cement etc. as per design and specifications. The existing ring, cover and CC beeding to be used. For 1.2M dia: For Machinehole of 1.2M dia and 2.0 M depth

Dismantling the damaged or collapsed Machinehole ,conical in shape, and reconstructing the same for the same dimensions, with machine made wire cut brick in CM 1:4 with ordinary portland cement etc. as per design and specifications. The existing ring, cover and CC beeding to be used. For 1.2M dia: For Machinehole of 1.2M dia and 3.0 M depth

Constructing brick masonry chamber of internal dimension 600x450mm and depth of 600mm (inner dimensions) with modular bricks of CD 75 in cement mortar 1:6, bed concrete 150mm thick with 1:3:6, plastering 12 mm thick with cement mortar 1:4, CC 1:2:4 coping 75mm thk for fixing CI cover & frame etc. excluding the cost of CI frame and cover.

Constructing brick masonry chamber of internal dimension 450x450mm and depth of 600mm (inner dimensions) with modular bricks of CD 75 in cement mortar 1:6, bed concrete 150mm thick with 1:3:6, plastering 12 mm thick with cement mortar 1:4, CC 1:2:4 coping 75mm thk for fixing CI cover & frame etc. excluding the cost of CI frame and cover.

Constructing brick masonry chamber of internal dimension 450x300mm and depth of 600mm (inner dimensions) with modular bricks of CD 75 in cement mortar 1:6, bed concrete 150mm thick with 1:3:6, plastering 12 mm thick with cement mortar 1:4, CC 1:2:4 coping 75mm thk for fixing CI cover & frame etc. excluding the cost of CI frame and cover.

Providing Brick work with common burnt clay Non Modular bricks of class designation 3.5 in superstructure above plinth level in all shapes and sizes in Cement mortar 1:6 (1 cement : 6 coarse sand) including cost of all materials, labour, scaffolding and usage charges of machinery & other incidental charges complete as per the direction of engineer incharge of work.

Providing 12 mm cement plaster with cement mortar 1:6 (1 cement: 6 fine sand) including rounding off corners wherever required smooth rendering, providing and removing scaffolding, including cost of materials, labour, curing complete as per specifications and as per directions of Engineer-in-charge.

Providing and Casting of Precast RCC cover slabs to the required size as per the site condition including the cost of reinforcement steel @ minimum 80kg/Cum including all costs complete.

Conveying the new CI or RCC Cover Slabs from divisional stores to the work spot and fixing the same in cement concrete and removing the old frame and cover and conveying back the old ones to stores.

Dismantling of Flexible pavements and disposal of dismantled materials and stacking serviceable and unserviceable materials separately, By Manual Means, Bituminous course.

Dismantling of Flexible pavements and disposal of dismantled materials and stacking serviceable and unserviceable materials separately, By Manual Means, Granular course

Supplying water by 12,000 Liters capacity water tanker. Having Mechanical pumping provision for passing the water through the sewage lines to facilitate clearing the blockeages by using centrifugal pump for clearing the clogs and diluting the collected silt,etc excluding the cost of water and including loading, transportation and pumping transportation of water to site and all other incidential charges etc. complete as directed by the department. (Note; for any reasons or lim itations if the water is supplied in 6000 Liters capacity tank the 50% less rate shall be considered i.e, quantity shall be considered as 0.5 Load)

Maintaining the sewage distribution lines between W.C., Bath, Kitchen, inspection chambers, Nahani Traps, Gully Traps etc, upto Mainline to prevent the blockage in all the quatres and non residential buildings and attending the sewage complaints to remove the blockages in above locations outside the security compound, 1. By deploying Two labours for Removal of silt in the sewage distribution lines between W.C., Bath, Kitchen, inspection chambers, Nahani Traps, Gully Traps etc, upto Mainline. and 2. By Deploying Two labours for removal of collected Silt / Sludge in the inspection chambers and shallow manholes using manual soil Grab tool. During Normal working Days.

Maintaining the sewage distribution lines between W.C., Bath, Kitchen, inspection chambers, Nahani Traps, Gully Traps etc, upto Mainline to prevent the blockage in all the quatres and non residential buildings and attending the sewage complaints to remove the blockages in above locations outside the security compound, 1. By deploying Two labours for Removal of silt in the sewage distribution lines between W.C., Bath, Kitchen, inspection chambers, Nahani Traps, Gully Traps etc, upto Mainline. and 2. By Deploying Two labours for removal of collected Silt / Sludge in the inspection chambers and shallow manholes using manual soil Grab tool. During Paid Holidays Days.