Rate analysis
Dismantling of manhole including R.C.C. top slab, C.I. cover with frame, including stacking of useful materials near the site and disposal of unserviceable materials within 50 m lead as per direction of Engineer-in-charge:
DSR rate₹8,466.35as per item analysis
Rectangular arch type manhole 140x90 cm and 2.45 m deep
- Item code
- 19.24.3
- Sub-head
- SH 19 · DRAINAGE
- Unit
- See analysis
- Source row
- 2696
Cost components
| Code | Description | Unit | Quantity | Rate | Amount |
|---|---|---|---|---|---|
| Details of cost of a manhole 140x90 cm and 2.45 m deep | |||||
| Dismantling of cement concrete 1:4:8 (1 cement : 4 coarse sand 8 : aggregate stone 40 mm nominal size) | |||||
| 2.16m x 1.66m x 0.20m = 0.72 cum | |||||
| 15.2.2 | Rate as per item no. 15.2.2 of SH : Dismantling and demolishing | cum | 0.72 | ₹1,503.60 | ₹1,082.59 |
| Dismantling of second class brick work in cement mortar 1:4 (1 cement : 4 coarse sand) | |||||
| Brick work in item 5.52mx0.23mx1.20m = 1.524 cum | |||||
| 3.92mx0.23mx1.15m = 1.037 cum = 2.561 cum | |||||
| Deduct arch ring and portion of pipe | |||||
| 2x½x3.14x0.25mx0.23x0.1m = 0.018 cum | |||||
| 2x3.14/4(0.15)²x0.23m = 0.008 cum = (-) 0.026 cum | |||||
| Net qty = 2.561 - 0.026 = 2.535 cum | |||||
| Brick work in arch | |||||
| ½x3.14x1.13x0.80x0.23m = 0.327 cum | |||||
| 2x½x3.14x0.25mx0.23x0.1m = 0.018 cum | |||||
| = 0.345 cum Say 0.35 cum | |||||
| Net qty = 2.54+0.35 = 2.89 cum | |||||
| 15.7.4 | Rate as per item no. 15.7.4 of SH :dismantling and dimolishing | cum | 2.89 | ₹2,060.20 | ₹5,953.98 |
| Dismantling cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) | |||||
| 2x1.4x0.90/2x(0.20+0.30)/2 = 0.315 cum | |||||
| Less pipe 1.4x3.14/4x(0.15)² = (-) 0.025 cum | |||||
| Net qty = 0.290 cum | |||||
| 15.2.1 | Rate as per item no. 15.2.1 of SH : Dismantling and demolishing | cum | 0.29 | ₹2,434.25 | ₹705.93 |
| Dismantling of R.C.C slab of 1:2:4 (1 cement : 2 coarse sand : 4 grade stone aggregate 20 mm nominal size) | |||||
| 1.36mx1.06mx0.15 = 0.216 cum | |||||
| Less cover 3.14/4x(0.50)²x0.15m = (-) 0.029 cum | |||||
| = 0.187 cum Say 0.19 cum | |||||
| 15.3 | Rate as per item no 15.3 of SH : Demolishing and dismantling | cum | 0.19 | ₹3,551.25 | ₹674.74 |
| 9999 | Removal of C.I. Cover with frame | L.S. | 7.15 | ₹2.27 | ₹16.23 |
| 9999 | Removal of M.S foot rest | L.S. | 8.06 | ₹2.27 | ₹18.30 |
Rate build-up
| Say 2.54 cum | — |
| TOTAL | ₹8,451.77 |
| Add 1 % Water charges on "W-A" | ₹0.35 |
| TOTAL | ₹8,452.12 |
| Add GST on "X-A" (multiplying factor 0.2127) | ₹7.42 |
| TOTAL | ₹8,459.54 |
| Add 15% CPOH on "Y-A" | ₹6.34 |
| TOTAL | ₹8,465.88 |
| Add Cess @ 1% on "Z-A" | ₹0.49 |
| Cost of one no | ₹8,466.37 |
| Say | ₹8,466.35 |