M/o Various schemes under NA.II (EZ)Sub-Head- Repair of existing deep sewer line and allied civil works at Laxmi Nagar District Centre.

Providing & fixing 2.0 m high MS sheets barricading with frame of angle iron 40×40×6 mm every post to be welded with MS channel ISLC 100×50×6.4 mm horizontal i/c making hole in the channel for providing embedding of 16 mm dia round torque bars in the road as per drawing (for trunk sewer work only).

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

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 up to 50 m and for all lifts as directed by Engineer-in-charge. (a)All kinds of soil.

Hire charges of crane of 20 tonne capacity.

Construction of bundh with earth filled up earth in empty (PVC) cement bags i/c stitching/Stacking placing in position and removing the same etc.

Providing and laying Non Pressure NP-3 class (Medium 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. complete (a)600 mm dia RCC pipes

Constructing brick masonry circular manhole 6'-0" or 1.83 m internal dia at bottom and 1'-10" or 0.56 m dia at top, up to IL 12'-6" or 3.81 m built in brickwork with extruded burnt sewer brick ( in FPS Size) conforming to IS-4885-1988 in curved on plan in cement mortar 1:4 (1 cement :4 coarse sand) excluding excavation & soling, but including 12" or (0.30 m) thick foundation cement concrete 1:2:4 (1 cement :2 coarse sand :4 graded stone aggregate 40 mm nominal size) including centring and shuttering and fixing SFRC manhole cover and frame (Heavy Duty) 560 mm internal dia in cement conc. 1:2:4 (1 cement :2 coarse sand; 4 graded stone aggregate 20 mm nominal size) and 12 mm thick cement plaster both inside and outside with cement mortar 1:4(1 cement : 4 coarse sand) and inside plaster to be finished with a floating coat of neat cement. Making necessary channel in cement conc. 1:2:4 (1 cement :2 coarse sand : 4 graded stone aggregate 20 mm nominal size) all complete as per departmental drawings and as directed by Engineer-in-Charge. Note: 1.Cement required 13.71 Quintals/Each 2.Cost of Manhole frame and cover shall be paid separately. 3. Cost of providing and fixing plastic encapsulated foot rest shall be paid separately.

Extra per meter depth of 6"-0"dia Or 1.829 m dia internal circular manhole built with brickwork with extruded burnt sewer brick ( in FPS size) conforming to IS 4885-1988 in curved in cement mortar 1:4 (1 cement : 4 coarse sand) 12 mm thick cement plaster both inside and outside with cement mortar 1:4 (1 cement : 4 coarse sand) and inside plaster to be finished with a floating coat of neat cement and all complete as per departmental drawings and as directed by the Engineer -in- Charge. (cost of providing and fixing of plastic encapsulated foot rest shall be paid separately). (a)Beyond Detail for 3.81 meter and upto IL 6.096 meter depth ( 12'-6" to 20'-0") cement required 5.06 Qtl./ meter depth

Providing leak proof rocka's in 150 mm dia to 300 mm dia running sewer line with earth filled in empty cement (PVC) bags i/c removal of same after completion of work

Plugging of the existing sewer line and manhole with 2 nos MS Sheet 6 mm thick angle iron frame and braces shutters to be shuttered with wooden struts and filling the manhole with empty cement (PVC) bags filled up with earth up to suitable depth to avoid leakage the sewer on the U/S side to be pumped with suitable nos. the capacity of pumps, till the work is completed so as to keep reduce the pressure to be required extent to the plugged manhole. necessary arrangement to be made for pumping of any leakage noticed in the manhole or to re-plunge in the case of heavy leakage. The steel shutters and earth filled PVC cement bags shall be removed after the completion of work and then the manhole shall be desilted. (b) 600mm to 700mm