Rate analysis
Constructing brick masonry circular type manhole 0.91 m internal dia at bottom and 0.56m 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 mix (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 : 0.91 m deep with S.F.R.C. 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 12mm thick cement plaster at the external surface shall be paid for separately) :
DSR rate₹12,600.40as per item analysis
With Sewer bricks conforming to IS : 4885
- Item code
- 19.9.1.2
- Sub-head
- SH 19 · DRAINAGE
- Unit
- See analysis
- Source row
- 1571
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) | |||||
| 1.67x1.67x0.225 m = 0.63 cum | |||||
| 4.1.6 | Rate as per item no 4.1.6 of SH : Concrete Work | cum | 0.63 | ₹7,178.75 | ₹4,522.61 |
| Brick work with modular extruded brunt fly ash clay sewer bricks (Conforming to IS: 4885 ) in cement mortar 1:4 (1 cement : 4 coarse sand) | |||||
| Curved on plan | |||||
| 3.14x1.14x0.074x0.23 = 0.061 | |||||
| 3.14x(1.14+0.79)/2x0.711x0.23 = 0.496 | |||||
| = 0.557 | |||||
| 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 0.557-0.026 = 0.531 Say 0.53 | |||||
| 6.36.1 | Rate as per item No 6.36.1 of SH : Brick Work | cum | 0.53 | ₹7,197.75 | ₹3,814.81 |
| Brick work in arches with modular extruded brunt fly ash clay sewer bricks conforming to IS : 4885 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(0.91+0.82)²x0.20 = 0.118 cum | |||||
| [(2x8.133)/360]x(4/3)x3.14x(0.45)³ =0.017 cum | |||||
| Total= 0.135 cum | |||||
| Less pipe : 0.91x3.14/4x(0.15)² = (-) 0.016 cum | |||||
| Total= 0.119 cum Say 0.12 cum | |||||
| 4.1.3 | Rate as per item no. 4.1.3 of SH : concrete Work | cum | 0.12 | ₹7,878.50 | ₹945.42 |
| 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 | |||||
| 3.14/4x(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(0.80+0.56)/2x0.49 = 1.05 sqm | |||||
| 3.14x0.56x0.075 = 0.13 sqm | |||||
| Benching | |||||
| 3.14x(0.80)²/4-0.80x0.15+0.80x½x3.14x | |||||
| 0.15 = 0.57 sqm | |||||
| Total= 1.75 sqm | |||||
| 13.9.1 | Rate as per item no 13.9.1 of SH : Finishing | sqm | 1.75 | ₹449.55 | ₹786.71 |
| LABOUR | |||||
| Extra labour for making channel : | |||||
| 0123 | Mason 1st class | day | 0.06 | ₹897.00 | ₹53.82 |
| 0124 | Mason 2nd class | day | 0.06 | ₹816.00 | ₹48.96 |
| S.F.R.C cover | |||||
| 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
| TOTAL | ₹12,138.95 |
| Add 1 % Water charges on "W-A" | ₹10.92 |
| TOTAL | ₹12,149.87 |
| Add GST on "X-A" (multiplying factor 0.2127) | ₹234.54 |
| TOTAL | ₹12,384.41 |
| Add 15% CPOH on "Y-A" | ₹200.59 |
| TOTAL | ₹12,585.00 |
| Add Cess @ 1% on "Z-A" | ₹15.38 |
| Cost of one manhole | ₹12,600.38 |
| Say | ₹12,600.40 |