Confirmatory Survey Design Construction and laying of sewer line connection to existing sewerage network testing and commissioning including supply of all material labour Tand P etc for Haridwar bypass Road in Dehradun

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)

Excavation of earth depth upto 1.5 mt. 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 trenches including 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 necessary with the help of ballies, ropes, flags, signal and right signal 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

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 6m below G.L

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 )

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 )

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.

150 mm dia

200 mm dia

250 mm dia

300 mm dia

350 mm dia

300 mm dia

Providing of all material,carting from site store to site of work , Lowering into trenches with true to alignment , laying & Jointing of full length S&S Centrifugally Cast (Spun)Ductile Iron Pipes confirming to IS: 5382-1985 with testing of pipe line complete.

D.I. Pipes(S&S K-7):

300mm dia

Providing and laying D.I special of class K-12 suitable for push on jointing as per IS : 9523-2000

Upto 600mm dia

Providing and laying of DI Special of K-12 suitable for mechanical jointing as per IS 9523-2000

Upto 600 mm dia

Providing, Laying and Jointing of Following size pipe to correct grade and alingnment from 3 m upto 7 m depth including boring, Pilot inclined dilling from exisitng ground level upto required depth (invert level) on rig side of proposed gravity sewer line (i.e. entry side) and Final inclined boring from exisitng ground level upto required depth (invert level) or vicecversa on pipe side (i.e. exit side) of proposed gravity sewer line using Horizontal Directional Drilling method in any type of ground including soft soil, mixed ground and soft/hard rock. Length of gravity sewer line between inner faces of two consecutive proposed manholes will be considered for measurement.

300 mm dia HDPE Pipe PN-6 Class- PE 80 grade : IS 14333 .

350 mm dia HDPE Pipe PN-6 Class- PE 80 grade : IS 14333 .

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

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

Road restoration work (payment to PWD)

Providing and Spreading RBM i.e.,River Bed Material (treated /surface course material )in uniform layer with motor grader on prepared surace with rotavator and compacting with smooth wheeled roller to achieve the desired density.

WBM Grading 2 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 Clause 405.

WBM Grading 3 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 to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading 3 as per Technical Specification Clause 405.

Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.20 kg per sqm on the prepared bituminous/granular surface cleaned with mechanical broom.

Bituminous Macadam (Providing and laying bituminous macadam with 100-120 TPH hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading premixed with bituminous binder, transported to site, laid over a previously prepared surface with paver finisher to the required grade, level and alignment and rolled as per clauses 501.6 and 501.7 to achieve the desired compaction) for GradingII (19 mm nominal size)

Semi - Dense Bituminous Concrete (Providing and laying semi dense bituminous concrete with 100-120 TPH batch type HMP producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.5 to 5 % of mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRTH specification complete in all respects) for GradingII (10 mm nominal size)

Cement Concrete Pavement Construction of un-reinforced, dowel jointed at expansion and construction joint only, plain cement concrete pavement, thickness as per design, over a prepared sub base, with 43 grade cement or any other type as per Clause 1501.2.2 M30 (Grade), coarse and fine aggregates conforming to IS:383, maximum size of coarse aggregate not exceeding 25 mm, mixed in a concrete mixer of not less than 0.2 Cum capacity and appropriate weigh batcher using approved mix design, laid in approved fixed side formwork (steel channel, laying and fixing of 125 micron thick polythene film, wedges, steel plates including levelling the formwork as per drawing), spreading the concrete with shovels, rakes, compacted using needle, screed and plate vibrators and finished in continuous operation including provision of contraction and expansion, construction joints, applying debonding strips, primer, sealant, dowel bars, near approaches to bridge/culvert and construction joints, admixtures as approved, curing of concrete slabs for 14-days, using curing compound (where specified) and water finishing to lines and grade as per drawing and Technical Specification Clause 1501

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering

1:1½:3 (1 Cement: 1½ coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size)

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

Cleaning of Manhole Chamber Depth upto 4.50m.

Miscellanious works

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

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

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)

15 to 20mm G.I, Pipe

25 to 32mm G.I. Pipe

65 mm PVC Pipe

100 mm to 200 mm DI/MS Pipe

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

1200 mm dia ,1.65-2.30m depths

1500 mm dia,2.30m-4.95 m depths

M.R.ENGINEERS AND CONTRACTORS (BID ID -355828)