Constructing brick masonry manhole in cement mortar 1:5 ( 1 cement : 5 coarse sand) R.C.C. top slab 20cm thick using M-20 mix by using mixer and vibrator, TMT Fe500 @80.00 kg/per cum, foundation concrete 1:4:8 mix (1 cement: 4 coarse sand : 8 graded stone aggregate 40mm nominal size) inside plastering 12mm thick with cement mortar 1:3 (1 cement: 3 coarse sand) finished with floating coat of neat cement and making 40mm thick benching in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size) finished with a floating coat of neat cement, Orange coloured PVC steps including RCC cover with frame complete as per standard design complete in all respects. Inside size 75×120 cm and 120 cm deep