Confirmatory Survey Design Construction and laying of sewer line and appurtenant works from Agrawal Dharamshala Prince Chowk to Pathri Bagh Chowk at Saharanpur Road Dehradun Under Deposit Programme

Amount

Providing and erecting 2.00 metre high temporary barricading at site; each panel of size 2.50mx2.00m made of 40x40x6mm angle iron or 50x50x3mm hollow MS tube posts/horizontal members/bracings covered with 1.63mm thick MS sheet. The sheet shall be fixed with 30x5mm MS flat by suitable welding/riveting. The panels shall be made so that gap of 50cm above the ground is available making overall height as 2.5m. MS channel ISLC 75 @ 5.70 kg/m, 50cm long shall be provided at the bottom having oval shaped holes of size 50x25mm at both ends with 50cm long MS angle40x40x6mm bracing. Suitable arrangement shall be made to fix the barricading to avoid from overturning by providing 250mm long expansion fasteners at both ends. The work shall be executed as per drawing/direction of Engineer-in-Charge which includes writing and painting, arrangement for traffic diversion such as traffic signals during construction at site for day and night, glow lamps, reflective signs, marking, flags, caution tape as directed by the Engineer-in-Charge. The barricading provided shall be retained in position at site continuously i/c shifting of barricading from one location to another location as many times as required during the execution of the entire work till its completion. Rate include its maintenance for damages, painting, all incidentals, labour materials, equipment's and works required to execute the job. The barricading shall not be removed without prior approval of Engineer?in-Charge

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)

Nominal concrete 1:4:8 or leaner mix (i/c equivalent design mix)

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

Water bound macadam road

bituminous road

Excavation of earth in ordinary soil for laying of sewers including cutting of joints, pits, trimming, dressing, levelling, of trenches in 20 cm. Layer, watering and ramming the same including removal of surplus earth and other dismantled materials upto distance of 50m. from centre of trenches. : Soil mixed with morum,shingle & kankar etc.

Provide & fixing of Open Timbering (covering1/3rd of surface area by planks), in trenches for the following depths below ground level consisting of 40mm thick approved country wood planks for poling board, 125mm × 75mm Indian Salwood walers and 100 mm dia Sal wood ballies for struts at 1.50m interval including removal after laying of sewer(both sides of trenches will be taken as one side for the purpose of payments & measurements i.e. area equals to length x depth of trenches. Dismantled timbering materials will be the property of the contractor.

Depth upto 3 m below G.L

3 m to 6 m below G.L

Provide & fixing of Close Timbering in trenches for the following depths below ground level consisting of 40mm thick approved country wood planks for poling board, 125mm × 75mm Indian Salwood walers and 100 mm dia Sal wood ballies for struts at 1.50m interval including removal after laying of sewer(both sides of trenches will be taken as one side for the purpose of payments & measurements i.e. area equals to length x depth of trenches. Dismantled timbering materials will be the property of the contractor.

Depth upto 3 m below G.L

3 m to 6 m below G.L

Supply & Laying - Jointing of following dia. R.C.C.NP-3 S&S pipes Vertical Cast with EPDM rubber gaskets to the site of work, lowering the same into trenches below ground level true to alignment, making the joints with rubber gaskets and with necessary spun yarn soaked in bitumen jointing with 1:2 cement mortar in coarse sand including cost of all jointing materials and testing etc. complete but excluding excavation and backfilling of trenches upto ground level. (R.C.C. S&S Non Pressure Pipe class Conforming To IS : 458-2003)

800mm Np3 pipe

900mm Np3 pipe

800mm Np3 pipe

900mm Np3 pipe

800mm Np3 pipe

900mm Np3 pipe

Providing plain cement concrete bedding with 1:2:4 (M-15 grade ) with carefully compacted backfill using 20mm and down hard crusher broken stone laying in layers of not more than 15 cm thick including shuttering, compaction, curing, etc., complete for PCC bedding and surrounding as per drawing and as directed by the Engineer-in-Charge. Width of bedding (Outer diameter of pipe + 200mm or 1.25 times of outer diameter , whichever is more)

Construction of granular sub-base by providing close graded Material conforming to specifications, mixing in a mechanical mix plant at OMC, carriage of mixed material by tippers to work site, for all leads & lifts, spreading in uniform layers of specified thickness with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per specifications and directions of Engineer-in-Charge. With material conforming to Grade-III (size range 26.5 mm to 0.075 mm ) having CBR Value-20

Providing and spreading RBM i.e., River Bed Material (treated as granular sub-base /base/surface course material) in uniform layers with motor grader on prepared surface with rotator and compacting with smooth wheeled roller to achieve the desired density.

Constructing Brick Masonry Manhole of various dia and depth as per IS :4111 par1( latest amendment) 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 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 channel 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).

1500mm internal diameter at bottom 2.30-4.95m depth

1800 mm internal diameter at bottom ,9.00 m depth

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 40 mm nominal size) preparation of channel up to the height of the pipe and benching in PCC 1:2:4 (1 cemen : 2 coarse sand : 4 stone aggregate 20 mm nominal size) including neat cement finished, suitable connection of inlet & outlet pipes, testing water tightness of manhole curing etc.complete as per specification of Engineer-in-charge (the depth of manhole will be measured from the invert of the pipe to top of the manhole cover)

600 x 600 x 1.50 m deep

Supply of all materials and Constructing Reinforced cement concrete Circular Manhole in M30 Cement concrete of various dia and depth as per drawing. 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 1:3:6 (1 cement, 3 coarse sand, 6 stone aggregate 40mm nominal size), preparation of channel 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 lightness} 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).

1800 mm internal diameter, 9.00 m depth

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

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 20 mm G.I. Pipe

25 to 32 mm G.I. Pipe

Upto 65 mm PVC Pipe

75 mm to 110 mm PVC Pipe

110 mm to 160 mm PVC Pipe

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 certing etc. all complete.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in :

Cement mortar 1:6 (1 cement : 6 coarse sand)

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 (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Dewatering of waste water coming from existing sewer or sub soil water by well point system by making all arrangements including suplly of all material,labour,T&P,pumps etc,required and disposal of the same from one manhole to another manhole or at near by nala complete.Dewatering shall be done as per IS 9759-1981(upto date amendment).

Providing laying and jointing of following dia sewer pipeline by trenchless technology by HDD/Microtunneling machine including GPR survey for underground utility and accordingly preparation of design and drawing for laying of pipe line, construction of thrust and receiving pit of required size and required depth including sheeting, strutting as where ever required, including excavation, dewatering, back filling of pit, cutting bituminous surface, WBM, CC road if any and disposal of surplus of earth and rubbish as directed by engineer in charge. Pipe should be as per IS 3589 with anticorrosion protractive coating out side and Epoxy Coating inside minimum DFT 450 micron,laying at a required depths (3.50 to 7.50 M.) & true to alignment and gradient including barricading and safety provisions of proper site activates required as per direction of engineer in charge complete.

M.S. 800 mm ID and 10.00 mm Thick as per IS 3589

M.S. 700 mm ID and 10.00 mm Thick as per IS 3589

Addition or substraction due to variation in shaft for following sizes of manholes.

1500mm internal diameter at bottom 2.30-4.95m depth

1800 mm internal diameter at bottom ,9.00 m depth

Deduction in the depth of the sewer connecting chamber to regulate payments for variation of actual depth of manhols in following sizes :-

600x600 mm x 1.5 m deep

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

1800 mm internal diameter, 9.00 m depth

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