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CPWD Analysis of Rates · Drainage

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

Rectangular arch type manhole 140x90 cm and 2.45 m deep

CPWD DAR 2023›Drainage
Item number
19.24.3
Analysis basis
Details of cost of a manhole 140x90 cm
Priced inputs
6
Derived rate
₹8,466.35

Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 19.24.3 — 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: Rectangular arch type manhole 140x90 cm and 2.45 m deep — is derived from 6 priced inputs and works out to ₹8,466.35 after water charges, GST, CPOH and cess. The full build-up is below.

  • 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
  • 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
  • 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
  • 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
  • cum
  • Net qty = 0.290 cum
  • 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
  • 0.029 cum
  • = 0.187 cum Say 0.19 cum
  • Deduct arch ring and portion of pipe
  • Say 2.54 cum
  • Less pipe 1.4x3.14/4x(0.15)² = (-) 0.025
  • Less cover 3.14/4x(0.50)²x0.15m = (-)
CodeInputUnitQuantityRate (INR)Amount (INR)
Rate as per item no. 15.2.2 of SH : Dismantling and demolishingRate as per item 15.2.2Sub-analysiscum0.721,503.601,082.59
Rate as per item no. 15.7.4 of SH :dismantling and dimolishingRate as per item 15.7.4Sub-analysiscum2.892,060.205,953.98
Rate as per item no. 15.2.1 of SH : Dismantling and demolishingRate as per item 15.2.1Sub-analysiscum0.292,434.25705.93
Rate as per item no 15.3 of SH : Demolishing and dismantlingRate as per item 15.3Sub-analysiscum0.193,551.25674.74
9999Removal of C.I. Cover with frameMaterialL.S.7.152.2716.23
9999Removal of M.S foot restMaterialL.S.8.062.2718.30
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

From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1756. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.

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