Remodelling of drain based on Master Drainage Plan from Narela Railway crossing to Major drain (outfall) near DJB office (RHS) on Narela-Bawana road under Sub Division NR-13 of North Roads Division, PWD, Delhi

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and for all lift, as directed by Engineer-in-charge. All kinds of soil

Centering and shuttering including strutting, propping etc. and removal of form for:

Foundations, footings, bases of columns, etc. for mass concrete

Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 and for all lift.

Providing and laying in position ready mixed plain cement concrete, with cement content as per approved design mix and manufactured in fully automatic batching plant and transported to site of work in transit mixer for all leads, having continuous agitated mixer, manufactured as per mix design of specified grade for plain cement concrete work including laying at site and curing, excluding the cost of centering, shuttering and finishing, including cost of curing, admixtures in recommended proportions as per IS : 9103 to accelerate/ retard setting of concrete, improve workability without impairing strength and durability as per direction of the Engineer-in-charge.: All works upto plinth level : M-10 grade plain cement concrete (cement content considered @ 220 kg/cum)Note:- Cement content considered in this item is minimum @220 kg/cum. Nothing extra shall be payable on account of design mix specifiy more than @ 220 kg/cum

Providing and laying in position ready mixed M-25 grade concrete for plain cement concrete Work, using cement content as per approved design mix, manufactured in fully automatic batching plant and transported to site of work in transit mixer for all leads, having continuous agitated mixer, manufactured as per mix design of specified grade for plain cement concrete work, excluding the cost of centering, shuttering, finishing and reinforcement including cost of admixtures in recommended proportions as per IS : 9103 to accelerate/ retard setting of concrete, improve workability without impairing strength and durability as per direction of the Engineer-in-charge. All works upto plinth level. Note:- Cement content considered in this item is minimum @300 kg/cum. Nothing extra shall be payable on account of design mix specify more than @ 300 kg/cum.

Providing and laying in position ready mixed M-30 grade concrete for RCC work, using cement content as per approved design mix, manufactured in fully automatic batching plant and transported to site of work in transit mixer for all leads, having continuous agitated mixer, manufactured as per mix design of specified grade for plain cement concrete work, excluding the cost of centering, shuttering, finishing and reinforcement including cost of admixtures in recommended proportions as per IS : 9103 to accelerate/ retard setting of concrete, improve workability without impairing strength and durability as per direction of the Engineer-in-charge. All works upto plinth level. Note:- Cement content considered in this item is minimum @350 kg/cum. Nothing extra shall be payable on account of design mix specify more than @ 350 kg/cum.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Thermo-Mechanically Treated bars of grade Fe-500D or more.

Providing & fixing pre-fabricated precast solid open U shaped RCC drain, drain cover, box culvert, crash barrier, retaining wall, silt chamber etc. using wet-cast technology with self-compacting concrete of grade M-50 and thermo-mechanically treated (TMT) steel bars of grade Fe-550D including straightening, cutting, bending, placing in position and binding, all complete upto plinth level with provisions of shear keys, connecting loops, necessary cutouts/holes lined with dowel tubes of required sizes for services with proper lifting arrangement of various thicknesses, shape and size using high quality steel molds including loading, transportation from factory to site of work, unloading, stacking at site and placing in final position with the help of required capacity cranes all complete as per IS-11447:1985 and as per approved shop drawings and design mix complete as per the directions of Engineer-in-Charge. The RCC precast drain along with drain cover taken together as an integrated system, shall be capable of carrying a wheel load of 5 Ton of vehicular load. The precast elements shall be manufactured in a controlled factory environment with approved methodology/technology having all facilities including automated steam curing, automated reinforcement cage making facility, NABL accredited in-house laboratory with all testing facilities etc. complete as per the directions of Engineer-in-Charge. The installation of RCC precast drain, drain cover, box culvert etc. shall be done in correct and final position with proper line, level and plumb at site after making all arrangements of requisite T&P e.g., cranes, push-pull jacks etc. for lifting, placing and alignment of elements within erection tolerance as per IS-15916:2020, as per approved shop drawings, complete as per direction of Engineer-in-Charge including cost of all material and all tools & machinery required for casting for all works up to plinth level complete as per the directions 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 1:4:8 or leaner mix (including equivalent design mix)

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works

Deduction for taking away old steel items obtained from dismantling/demolishing steel /RCC work as per direction of Engineer-in-Charge (Dismantled marterial shall be property of the contractor)

Less GST multiplying factor (1-0.973 = 0.027) on all items except item No. 8 &13

Add: 3% Cost Index on on all items except item No. 8 &13

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