CPWD Analysis of Rates · Drainage
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)
With Sewer bricks conforming to IS : 4885
- Item number
- 19.9.1.2
- Analysis basis
- Details of cost for 1 manhole
- Priced inputs
- 11
- Derived rate
- ₹12,600.40 / manhole
Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 19.9.1.2 — 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) : With Sewer bricks conforming to IS : 4885 — is derived from 11 priced inputs for 1 manhole and works out to ₹12,600.40 per manhole after water charges, GST, CPOH and cess. The full build-up is below.
- 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
- 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
- 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
- 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
- 0.016 cum
- Total= 0.119 cum Say 0.12 cum
- 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
- 0.037 cum
- Total = 0.086 cum Say 0.09 cum
- 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
- Extra labour for making channel :
- S.F.R.C cover
- Circular shape 560 mm dia precast
- Less pipe : 0.91x3.14/4x(0.15)² = (-)
- Less cover 3.14/4x(0.28)² x 0.15 m = (-)
| Code | Input | Unit | Quantity | Rate (INR) | Amount (INR) |
|---|---|---|---|---|---|
| Rate as per item no 4.1.6 of SH : Concrete WorkRate as per item 4.1.6Sub-analysis | cum | 0.63 | 7,178.75 | 4,522.61 | |
| Rate as per item No 6.36.1 of SH : Brick WorkRate as per item 6.36.1Sub-analysis | cum | 0.53 | 7,197.75 | 3,814.81 | |
| Rate as per item No 6.37 of SH : Brick WorkRate as per item 6.37Sub-analysis | cum | 0.02 | 13,427.30 | 268.55 | |
| Rate as per item no. 4.1.3 of SH : concrete WorkRate as per item 4.1.3Sub-analysis | cum | 0.12 | 7,878.50 | 945.42 | |
| Rate as per item no. 4.1.3 of SH : Concrete WorkRate as per item 4.1.3Sub-analysis | cum | 0.09 | 7,878.50 | 709.07 | |
| Rate as per item no 13.9.1 of SH : FinishingRate as per item 13.9.1Sub-analysis | sqm | 1.75 | 449.55 | 786.71 | |
| 0123 | Mason 1st classMason 1st classLabour | day | 0.06 | 897.00 | 53.82 |
| 0124 | Mason 2nd classMason 2nd classLabour | day | 0.06 | 816.00 | 48.96 |
| 7135 | R.C.C. manhole cover with frame - H.D. - 20Circular shape 560 mm dia precast R.C.C. manhole cover with frame - H.D. - 20Material | each | 1 | 935.00 | 935.00 |
| 9977 | CARRIAGEMaterial | L.S. | 6.89 | 2.27 | 15.64 |
| 9999 | SundriesMaterial | L.S. | 16.9 | 2.27 | 38.36 |
- 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
From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1727. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.
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