Execution of Sewer Line and its appurtenant works including connection of laid sewer line to existing sewerage network survey and redesign etc at Umang Vihar Narayani Vihar Colony in Dehradun City

Amount

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

Demolishing cement concrete manually / by mechanical means including disposal of material within 50 metres lead as per direction of Engineer-in - charge. Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

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.

Excavation of earth Below G.L. for laying of sewer manholes, Gully pits, Chambers, sumps etc. in ordinary soil(earth,sand loam and clay) joints, pits, trimming, dressing, levelling refilling of trenchesincluding cutting of in 20 cm layers,watering and ramming the same including removal of surplus earth or other dismantled material up to a distance of 50 meters from the center of trenches.Excavation in soil mixed with morum,shingle,kankar requaring use of specials T&P.

Depth from 0.0 upto 1.5 m

Depth from 1.5 upto 3.0 m

Depth from 3.0 upto 4.5 m

Provision for baricading in two rows and necessary diversion of paths and where as necesarry with the help of ballies ,ropes,flags,signals and light signals etc.as per requirement including supply of all material T&P etc complete.

Providing and fix open timbering covering 1/3 surface area by planks in trenches upto required depth. Below ground level consisting, of 40mm - 50mm thick approved country wood planks for poling board 125mm *75mm India Salwood walers and 100mm dia Sal bailies for struts at 1.50m c/c including removal after laying of sewar (both sides of trenches will be taken as one side for the purpose of payments & measurements i.e. face area timbered equals to length x depth of trench). Dismantled timbering materials will be the property of the contractor. 0.00 to 3.00 mBGL

Providing granular bedding with cerefully compacted backfill at all level using graded hard crusher broken stone100% passing through 20mm sieve , 20-50% passing through 10mm sieve and 100% retained on 6mm sieve, laying in layers of not more then 15 cm thick including ramming, watering, compaction etc. complete for pipe bedding and surrounding as per drawing and as directed by the Engineer-in-Charge. Width of bedding ( Outer diameter of pipe + 200mm )

Supply laying and jointing of following dia. R.C.C. NP-3 class (with spigot & Socket (S/S) ends) as per IS: 458-2003 {Amended up to date) with Rubber gaskets at site of work, lowering the same into trenches in depths up to required depth below ground level true to alignment as per drawings and jointing with 1:1 cement mortar in coarse sand including cost of all jointing materials, testing etc. complete as per specifications and as directed by the Engineer-in-Charge.( Pipes of dia 300mm and above have to be NP-3 reinforced made by vertical vibrated casting process with S/S ends conforming to IS 458 : 2003. 200 MM dia

Constructing Brick Masonry Manhole of various dia and depth as per IS :4111 par1( latest ammendment) in FPS brick class designation M-100 in Cement Mortar 1:5 (1 cement : 5 coarse sand) including nside and outside 15mm thick plastering in cement mortar 1:3(1 cement : 3 coarse sand) finished with a floating coat of neat cement inside only. The work includes excavation, dewatering, planking, strutting etc. refilling, disposal of surplus earth with all lift and lead of 50m, Including construction of concrete base with PCC 1:4:8 (1 cement : 1 coarse sand : 4 stone aggregate 40mm nominal size), preparation of channal up to the height of'the'pipe and benching in PCC 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 20mm nominal size) including neat cement finished, suitable connection of inlet & outlet pipes, testing (watertightness} of manhole, curing etc. complete as per specification and drawing and as per entire satisfaction of Engineer-in-Charge (the depth of manhole will be measured from the invert of the pipe to top of the manhole cover).

900mm internal diameter at bottom,0.90-1.65m depths

1200 mm internal diameter at bottom ,1.65-2.30m depths

1500 mm internal diameter at bottom ,2.30m-4.95 m depths

Constructing Brick Masonry sewer connecting chamber (SCC) of various sizes and depth as per drawing in FPS brick class designation M-100 in.,Cement Mortar 1:5 (1 cement : 5 coarse sand) including inside and outside 15mm thick plastering in cement mortar 1:3 (1 cement : 3 coarse sand)finished with a floating with a neat cement inside only. The work includes excavation, dewatering, planking, strutting etc, refilling, disposal of surplus earth with all lift and lead of 50m, Including construction of concrete base with PCC 1:4:8 (1 cement : 4 coarse sand : 8 stone aggregate 40mm nominal size), preparation of channal up to the height of the pipe and benching in PCC 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 20mm nominal size including neat cement finished, suitable connection of inlet & outlet pipes, testing water tightness of manhole, curing etc. complete as per specification and drawing and as per entire satisfaction ol Engineer-in-Charge (the depth of manhole will be measured from the invert of the pipe to top of the manhole cover). 600mm x 600mm x 1.50m depth

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in Cement mortar 1:6 (1 cement : 6 coarse sand)

Shifting of domestic water supply house connection coming in the alignment of sewer line/mahnole chamber including excavation, refilling, supply of all material, pipes, specials etc., labour, T&P and making good complete as per entire satisfaction of engineer in charge.

15 to 20mm Dia Pipe

25 to 32mm Dia Pipe

65 to 80 mm Dia Pipe

100 to 125 mm Dia Pipe

Provision for crossing sewers through existing drains coming across the alignment of sewer including making it good after laying the pipe.

Provision for road Reinstatement with plain cement concrete

1:3:6 (1 Cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size)

1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)

1:1.5:3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size)

Provision for making of connection of proposed sewer to existing sewer including making of holes in the walls and repairing the same with the new brick work as may be required for proper complete connection including clearing of existing sewer and manhole

Disposal of surplus earth from the site of work upto a distance of 8.0 km. As directed by Engineer incharge including loading unloading and carting etc. all complete.

Cartage of excavated earth from site to suitable place as per direction of engineer in charge by head load (the work being in narrow lanes) and carrying back for filling of trenchesafter laying and jointing the pipes up.to max distance 60 m one side

Cleaning of chocked sewer line by diesel running vehicle mounting hydraulic operated high pressure suction cum jetting sewer cleaning machine fitted with pump having 4000 litres suction capacity and 6000 litres water jetting tank capacity including skilled operator, supervising engineer etc. for cleaning and partial desilting of manholes and dechocking of sewer lines. Dechocking and flushing of sewer line from one manhole to another by high pressure jetting system of 2200 PSI for sewer line from 150mm dia upto 300mm

Cleaning of Manhole Chamber Depth upto 4.50m

Providing and Consolidation of RBM by road roller 8-10KN including spreading stone ballast, making medhi to retain water and ramming and also including carriage of metal, carriage of water and its supply. Supply and maintenance of barriers, caution boards/posts lights at night and flags in day, and including all T&P required for proper completion of work in all respect with all lead and lift as per specification and as directed by the Engineer-in-Charge.

Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN in stages to proper grade and camber, applying and brooming, stone screening/binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the required density grading 2 as per Technical Specification.

Using Grade II Aggregate, 63 mm to 45 mm size,

Using Grade III Aggregate, 53 mm to 22.4 mm size,

Providing and laying 60mm thick faciory made cement concrete interlocking paver block of M -30 grade made by block making machine with strong vibratory compaction, of approved size, design & shape, laid in required colour and pattern over and including 50mm thick compacted bed of coarse sand, filling the joints with line sand etc. all complete as per the direction of Engineer-in-charge.

Laying old cement cocrete 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 Engineerin- charge. (Old CC paver blocks shall be supplied by the department free of cost).

House hold Sewer Connection From Existing Old Chamber To Newly Laid Sewer including all material, labour, T&P etc complete.

Shaft Deduction in the depth of the manhole to regulate payments for variation of actual depth of manholes in following sizes.

900mm dia ,0.90-1.65m depths (Diduction item)

1200 mm dia ,1.65-2.30m depths (Diduction item)

1500 mm dia,2.30m-4.95 m depths (Diduction item)

Shaft Deduction in the depth of the sewer connecting chamber (SCC) to regulate payments for variation of actual depth of manholes in following sizes. 600mm x 600mm x 1.50m depth

SAKLA NAND LAKHERA

M.R.ENGINEERS AND CONTRACTORS

M/s Satender Bhandari

IMAGINATION ENVIRONMENTAL SOLUTIONS PVT LTD