Rate analysis
Constructing brick masonry circular manhole 1.22 m internal dia at bottom and 0.56 m dia at top in cement mortar 1:4 (1 cement :4 coarse sand) inside cement plaster 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand) finished with a floating coat of neat cement foundation concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) and making necessary channel in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) finished with a floating coat of neat cement, all complete as per standard design : 1.68 m deep with SFRC Cover and frame (heavy duty HD-20 grade designation) 560 mm internal diameter conforming to I.S. 12592, total weight of cover and frame to be not less than 182 kg. fixed in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) including centering, shuttering all complete. (Excavation, foot rests and 12 mm thick cement plaster at the external surface shall be paid for separately) :
DSR rate₹24,446.70as per item analysis
With Sewer bricks conforming IS : 4885
- Item code
- 19.11.1.2
- Sub-head
- SH 19 · DRAINAGE
- Unit
- See analysis
- Source row
- 1727
Cost components
| Code | Description | Unit | Quantity | Rate | Amount |
|---|---|---|---|---|---|
| Details of cost for 1 manhole | |||||
| MATERIAL | |||||
| Cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate : 40 mm nominal size) | |||||
| 1.98x1.98x0.30 m = 1.178 cum Say 1.18 cum | |||||
| 4.1.6 | Rate as per item no 4.1.6 of SH : Concrete Work | cum | 1.18 | ₹7,178.75 | ₹8,470.93 |
| Brick work with modular extruded brunt fly ash clay sewer bricks in cement mortar 1:4 (1 cement : 4 coarse sand) | |||||
| Curved on plan | |||||
| 3.14x1.45x0.24x0.23 = 0.251 | |||||
| 3.14x(1.45+0.79)/2x1.32x0.23 = 1.069 | |||||
| Total = 1.320 | |||||
| Duduct arch ring and portion of pipe | |||||
| 2x½x3.14x0.25mx0.230x0.10 m = 0.018 cum | |||||
| 2x3.14/4x(0.15)²x0.230 = 0.008 cum | |||||
| Total= 0.026 cum | |||||
| Net quantity 1.320-0.026 = 1.294 | |||||
| 6.36.1 | Rate as per item No 6.36.1 of SH : Brick Work | cum | 1.29 | ₹7,197.75 | ₹9,285.10 |
| Brick work in arches with modular extruded brunt fly ash clay sewer bricks in cement mortar 1:3 ( 1 cement : 3 fine sand ) | |||||
| 2x½x3.14x0.25 m x0.230x0.10 m = 0.018 cum Say 0.02 cum | |||||
| 6.37 | Rate as per item No 6.37 of SH : Brick Work | cum | 0.02 | ₹13,427.30 | ₹268.55 |
| Cement concrete 1:2:4(1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) | |||||
| For benching : | |||||
| 3.14/4x(1.22)²x0.20 = 0.234 cum | |||||
| [(2x8.133)/360]x(4/3)x3.14x(0.61)³ | |||||
| =0.043 cum | |||||
| Total= 0.277 cum | |||||
| Less pipe :1.22x3.14/4x(0.15)²(-) | |||||
| = 0.0216 cum | |||||
| Total= 0.2554 cum Say 0.26 cum | |||||
| 4.1.3 | Rate as per item no. 4.1.3 of SH : concrete | — | — | — | — |
| — | Work | cum | 0.26 | ₹7,878.50 | ₹2,048.41 |
| Cement concrete 1:2:4 (1 cement : 2 | |||||
| coarse sand : 4 graded stone aggregate 20 | |||||
| mm nominal size) | |||||
| For fixing cover : 3.14/4 x d² x thickness | |||||
| 3.14/4(1.020)²x0.15 m =0.123 cum | |||||
| Less cover 3.14/4x(0.28)² x 0.15 m : = (-) 0.037 cum | |||||
| Total= 0.086 cum Say 0.09 cum | |||||
| 4.1.3 | Rate as per item no. 4.1.3 of SH : Concrete Work | cum | 0.09 | ₹7,878.50 | ₹709.07 |
| 12 mm cement plaster 1:3 (1 cement : 3 coarse sand) finished with floating coat of neat cement | |||||
| 3.14x(1.136+0.56)/2x1.216 = 3.241 sqm | |||||
| 3.14x0.56x0.075 = 0.13 sqm | |||||
| 3.14x(1.136)²/4-1.136x1/2x3.14x0.15 = 1.112 sqm | |||||
| Total= 4.483 sqm Say 4.48 sqm | |||||
| 13.9.1 | Rate as per item no 13.9.1 of SH : Finishing | sqm | 4.48 | ₹449.55 | ₹2,013.98 |
| LABOUR | |||||
| Extra labour for making channel : | |||||
| 0123 | Mason 1st class | day | 0.1 | ₹897.00 | ₹89.70 |
| 0124 | Mason 2nd class | day | 0.1 | ₹816.00 | ₹81.60 |
| S.F.R.C manhole cover and frame | |||||
| 7135 | Circular shape 560 mm dia precast R.C.C. manhole cover with frame - H.D. - 20 | each | 1 | ₹935.00 | ₹935.00 |
| 9977 | CARRIAGE | L.S. | 6.89 | ₹2.27 | ₹15.64 |
| 9999 | Sundries | L.S. | 16.9 | ₹2.27 | ₹38.36 |
Rate build-up
| Say 1.29 cum | — |
| TOTAL | ₹23,956.34 |
| Add 1 % Water charges on "W-A" | ₹11.60 |
| TOTAL | ₹23,967.94 |
| Add GST on "X-A" (multiplying factor 0.2127) | ₹249.26 |
| TOTAL | ₹24,217.20 |
| Add 15% CPOH on "Y-A" | ₹213.17 |
| TOTAL | ₹24,430.37 |
| Add Cess @ 1% on "Z-A" | ₹16.34 |
| Cost of one manhole | ₹24,446.71 |
| Say | ₹24,446.70 |