Technical Maintenance of SW Drainage System in R-II Division during 2026-27. SH - Providing and laying 450mm dia NP2 RCC Pipe for drainage system front of G and H Block (B K Dutt Colony), Jor Bagh Lane area under Sub Division-III(R-II Division).

Dismantling of flexible pavement (bituminous courses) by mechanical means and disposal of dismantled material up to a lead of 1 kilometre, as per direction of Engineer-in-charge.

Taking out existing CC interlocking paver blocks from footpath/ central verge, including removal of rubbish etc., disposal of unserviceable material to the dumping ground, for which payment shall be made separately and stacking of serviceable material within 50 metre lead as per direction 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)

Providing and laying non-pressure NP2 class (light duty) R.C.C. pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete : 250 mm dia RCC pipe

Providing and laying non-pressure NP2 class (light duty) R.C.C. pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of jointsetc. complete : : 450 mm dia RCC pipe

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m All kinds of soil

Excavating trenches by mechinical / manual means of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, ramming of bottoms, for all depth, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m :All kinds of soil

Constructing brick masonry manhole (silt chamber type) inside size 120 X 90X 120 CM deep with FPS bricks of class designation 75 in cement mortar 1:4 (1 cement:4 coarse sand) 15 cm thick RCC top slab with 500 mm diameter clear opening in mix 1:2:4 (1 cement:2 coarse sand:4 graded stone aggregate 20 mm nominal size) inside plastering 12 mm thick cement mortar 1:3 (1cement:3 coarse sand) finished with a floating coat of neat cement and concrete 1:2:4(1 cement:2 coarse sand:4 graded stone aggregate 20 mm nominal size) with neat cement punning inside the manhole complete as per standard design (depth shall be measured from invert level of pipe up to top of RCC slab and difference of 30 cm shall be kept between invert level of pipe and manhole including the cost of RCC manhole cover and frame 500MM dia which shall be paid separately.

Constructing brick masonry circular road Gully chamber of 560mm internal dia 60cm deep with FPS brick of class designation 75 in cement mortar 1:4 (1cement :4 coarse sand ) over a bed concrete of 15cm. thick 115cm dia of mix 1:5:10 (1cement :5 Coarse sand :10 graded stone aggregate 40mm nominal size ) inside cement plastering 12mm thick with cement mortar 1:3 (1 cement :3 coarse sand ) finished with a floating coat of neat cement on walls and floors including providing the reinforced Gully grating cover and frame of 560mm internal dia metre 840mm external dia metre including finishing and embedding the frame in 15cm thick Cement Concrete 1: 2: 4 (1cement :2 coarse sand :4 graded stone aggregate 20mm nominal size ) with gully grating complete as per direction and satifaction of Engineer -in -Charge.

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. (196x0.973=190.71)