29.85d

Constructing brick masonry manhole in cement mortar 1:5 ( 1 cement : 5 coarse sand ) with RCC core wall between masonary, R.C.C. top slab 20mm thick using M-20 mix, 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 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 (extra heavy duty) internal dimensions.complete as per standard design. (In water logged area). Inside size 150×180 cm with depth 120 cm between bottom of top slab and invert.