M/o Scheme under N/A-II, Rohini Zone.

Making arrangement for shoring support to side of the trench by providing/ driving/ installing in position by driving of ISMB 300x140 mm at 1.2 m c/c with guide channel of angle iron of size 50x50x6 upto depth of 2 metre lower than excavation level of trench or upto designed depth, fixing/ placing M>S plate in between ISMB guide welded M.S Plate having from of angle 40x40x5mm and 1.25mm thick 18 gauge M. S. plate at the suitable length and width on each face of the trench. ISMB shall be strutted/ propped by 50 NB M.S. pipes at 1.5mtr. c/c including nuts, bolts, plates to join members etc. including other arrangement requirement required to complete system i/c removal of entire arrangement after laying of sewer line in part of a whole (detail as per drawing). The payment will be made on sqm basis. Base of facearea support by MS plates. No extra payment in any condition. All the above arrangement shall be installed as per drawing or as directed by the Engineer-in-charge.

Providing and ramming leak-proof plugging in manholes using cement bags filled with Yamuna sand, including proper stitching of bag mouths and stacking them securely to block the flow of water in the pipeline at both upstream and downstream ends. The bags shall be arranged in a manner that prevents displacement due to water pressure. The scope also includes removal of silt, taking all necessary safety precautions throughout the duration of the work, and removal of the sandbags upon completion. Applicable for pipes of all diameters and depths, complete as per the directions of the Engineer-in-Charge.

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

Providing and running pump set of capacity 4000 lit/hour. This item includes cost of services of operating staff, Cost of lubricating oil, diesel other consumables for running pump complete as per 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 1:3:6 or richer mix (including equivalent design mix)

Providing and laying Non Pressure NP-4 class (Heavy duty) R.C.C. pipes including collars/spigot jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete2400 mm dia RCC pipes. (Laying by manual/ machanical means)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :1:4:8 (1 Cement : 4 coarse sand (zone-Ill) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :1:2:4 (1 cement : 2 coarse sand (zone-lll) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per 1S: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge, for the following grades of concrete.: (Note: All works upto plinth level: Concrete of M30 grade with minimum cement content of 350 kg /cum. Nothing extra shall be paid on a/c of excess cement)

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.