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CPWD Analysis of Rates · Drainage

Constructing brick masonry chamber for underground C.I. inspection chamber and bends with bricks in cement mortar 1:4 (1 cement : 4 coarse sand) C.I. cover with frame (light duty) 455x610 mm internal dimensions, total weight of cover with frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15 kg), R.C.C. top slab with 1:1.5:3 mix (1 cement : 1.5 fine sand : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand), finished smooth with a floating coat of neat cement on walls and bed concrete etc. complete as per standard design: Inside dimensions 455x610 mm and 45 cm deep for single pipe line

With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Item number
19.30.1.1
Analysis basis
Details of cost for one chamber
Priced inputs
9
Derived rate
6,937.90 / one chamber

Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 19.30.1.1 Constructing brick masonry chamber for underground C.I. inspection chamber and bends with bricks in cement mortar 1:4 (1 cement : 4 coarse sand) C.I. cover with frame (light duty) 455x610 mm internal dimensions, total weight of cover with frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15 kg), R.C.C. top slab with 1:1.5:3 mix (1 cement : 1.5 fine sand : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand), finished smooth with a floating coat of neat cement on walls and bed concrete etc. complete as per standard design: Inside dimensions 455x610 mm and 45 cm deep for single pipe line : With common burnt clay F.P.S. (non modular) bricks of class designation 7.5 — is derived from 9 priced inputs for one chamber and works out to ₹6,937.90 per one chamber after water charges, GST, CPOH and cess. The full build-up is below.

  • Cement concrete 1:5:10 (1 cement : 5
  • fine sand : 10 graded stone aggregate 40
  • mm nominal size)
  • 1.22mx1.065mx0.15 m= 0.195 cum Say
  • 0.20 cum
  • Brick work in bricks of clas designation
  • 7.5 in cement mortar 1:4 ( 1 cement : 4
  • coarse sand)
  • 3.05 m x 0.23m x0.30 m = 0.210 cum
  • 2x3.14/4x(0.10)²x0.23 m = (-) 0.004 cum
  • Net Qty= 0.206 cum Say 0.21 cum
  • 12 mm cement plaster 1:3 ( 1 cement : 3
  • coarse sand) finished with floating coat of
  • neat cement
  • Wall : 2.13x0.30 m = 0.639 sqm
  • Bed : 0.61x0.455 m = 0.278 sqm
  • Total= 0.917 sqm
  • sqm
  • Net Qty= 0.901 sqm Say 0.90 sqm
  • Cement concrete 1:1.5:3 ( 1 cement : 1.5
  • coarse sand : 3 graded stone aggregate
  • 20 mm nominal size)
  • 3.05x0.23x0.15 = 0.105 cum say 0.11
  • cum
  • Form work
  • Outer periphery 3.73x0.15 m = 0.56 sqm
  • Less pipe
  • Less pipe 2x3.14/4x(0.10)² = (-) 0.016
CodeInputUnitQuantityRate (INR)Amount (INR)
Rate as per item no 4.1.11 of SH : Concrete WorkRate as per item 4.1.11Sub-analysiscum0.26,189.651,237.93
Rate as per item no 6.1.1 of SH : Brick WorkRate as per item 6.1.1Sub-analysiscum0.217,370.651,547.84
Rate as per item no 13.9.1 of SH : FinishingRate as per item 13.9.1Sub-analysissqm0.9449.55404.60
Rate as per item no. 5.1.2 of SH : RCC workRate as per item 5.1.2Sub-analysiscum0.119,045.75995.03
Rate as per item no 5.9.2 of SH : RCCRate as per item 5.9.2Sub-analysissqm0.56842.50471.80
1354Rectangular cover 455x610 mm with frame (low duty)C.I. Rectangular cover 455x610 mm with frame (low duty)Materialeach11,540.001,540.00
9977Carriage of C.I.cover and frameMaterialL.S.7.152.2716.23
9999Painting of C.I. Cover and frame with coal tarMaterialL.S.7.152.2716.23
9999SundriesMaterialL.S.13.522.2730.69
TOTAL
6,260.35
Add 1 % Water charges on “W-A”
16.03
TOTAL
6,276.38
Add GST on “X-A” (multiplying factor 0.2127)
344.40
TOTAL
6,620.78
Add 15% CPOH on “Y-A”
294.54
TOTAL
6,915.32
Add Cess @ 1% on “Z-A”
22.58
Cost of one chamber
6,937.90
Say
6,937.90

From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1769. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.

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