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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 manhole 120x90 cm and 90 cm deep

CPWD DAR 2023›Drainage
Item number
19.24.2
Analysis basis
Details of cost of a manhole 120x90 and
Priced inputs
5
Derived rate
₹4,475.50

Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 19.24.2 — 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 manhole 120x90 cm and 90 cm deep — is derived from 5 priced inputs and works out to ₹4,475.50 after water charges, GST, CPOH and cess. The full build-up is below.

  • 90 cm deep
  • Dismantling of cement concrete 1:4:8 (1
  • cement : 4 coarse sand 8 : aggregate
  • stone 40 mm nominal size)
  • 1.81x1.51x0.20 m = 0.547 cum Say 0.55
  • cum
  • Dismantling of secon class brick work in
  • cement mortar 1:4 (1 cement : 4 coarse
  • sand)
  • 5.12x0.23x0.80 m = 0.942 cum
  • (-) 0.008 cum
  • Net qty = 0.934 cum Say 0.93 cum
  • Dismantling cement concrete 1:2:4 ( 1
  • cement : 2 coarse sand : 4 graded stone
  • aggregate 20 mm nominal size)
  • 2x1.20x0.90x(0.80/2) x (0.30+0.20)/2 =
  • 2.70 cum
  • 0.021 cum
  • = 0.249 cum say 0.25
  • Dismantling of R.C.C slab of 1:2:4 (1
  • cement : 2 coarse sand : 4 grade stone
  • aggregate 20 mm nominal size)
  • For slab : 1.66x1.36x0.15m = 0.339 cum
  • 0.029 cum
  • Net qty = 0.31 cum
  • Less for pipe 2x3.14x(0.15m)²x0.23 m =
  • Less for pipe 1.20x3.14/4x(0.15m)² = (-)
  • Less for 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-analysiscum0.551,503.60826.98
Rate as per item no. 15.7.4 of SH :dismantling and dimolishingRate as per item 15.7.4Sub-analysiscum0.932,060.201,915.99
Rate as per item no. 15.2.1 of SH : Dismantling and demolishingRate as per item 15.2.1Sub-analysiscum0.252,434.25608.56
Rate as per item no 15.3 of SH : Demolishing and dismantlingRate as per item 15.3Sub-analysiscum0.313,551.251,100.89
9999Removal of C.I. Cover with frameMaterialL.S.7.152.2716.23
TOTAL
4,468.65
Add 1 % Water charges on “W-A”
0.16
TOTAL
4,468.81
Add GST on “X-A” (multiplying factor 0.2127)
3.49
TOTAL
4,472.30
Add 15% CPOH on “Y-A”
2.98
TOTAL
4,475.28
Add Cess @ 1% on “Z-A”
0.23
Cost of one no
4,475.51
Say
4,475.50

From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1755. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.

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