Estimate for Manhole /Inspection chamber of Internal size 750 L x 750 B mm Up to 1.2 mt. depth with C.I. Manhole cover and frame
👇Specification of Manhole Chamber👇
Constructing Manhole with R.C.C. top slab in M-25 mix (1-cement : 1 - coarse sand : 2-graded stone aggregate 20 mm nominal size) foundation concrete 1:3:6 mix (1-cement : 3 - coarse sand : 6- Brick bats 40+ 50 mm size) inside plastering 15 mm thick with Cement Mortar 1:5 (1-Cement : 5-coarse sand) finished with a floating coat of neat cement and making channels in cement concrete 1:2:4 mix (1-Cement :2-Coarse sand : 4- stone aggregate 20 mm nominal size) finished smooth complete. including curing and festing (i) Inside size 750 mm x 750 mm and 1.2 Meter deep including C.I. cover with frame size 560 mm diameter total weight of cover and frame to be not less than 128 kgs. (Wt. of cover 64 Kg. and Wt. of frame 64 Kg.) (A) With 230 mm thick walls of brick masonry using brick having crushing strength not less than 35 Kg./Sq.cm. in Cement Mortar 1:5 (1- Cement: 5-Coarse sand) (2) B type depth 1.2 Metre for 150 mm diameter sewer.
👇Detailed Estimate👇
👇Summary👇
| Sr. No. | Description | Amount in Rs. |
| A. | Per Number Cost of Manhole /Inspection chamber | 12,842.62 |
| B. | Total Amount in Rs. | 12,842.62 |
- G.S.T will be paid extra as per Government Norms.
👇Abstract Sheet👇
| Sr. No. | Description | QTY | Unit | Rate | Amount |
| 1 | Excavation & Back filling | 2.821 | Cu.mt | 160 | 451.30 |
| 2 | Brick bat chhara filling | 0.185 | Cu.mt | 650 | 120.22 |
| 3 | Sand filling | 0.139 | Cu.mt | 900 | 124.85 |
| 4 | P.C.C - 1:3:6 | 0.277 | Cu.mt | 4000 | 1109.76 |
| 5 | Brick Masonry | 1.082 | Cu.mt | 4500 | 4868.64 |
| 6 | Plaster | 9.408 | Sq.mt | 350 | 3292.80 |
| 7 | R.C.C - M-25 | 0.183 | Cu.mt | 7000 | 1281.09 |
| 8 | TMT Bars | 9.138 | KG | 65 | 593.96 |
| 9 | Manhole Cover with Frame | 1 | Nos. | 1000 | 1000 |
| Total Amount | Rs. | 12,843 |
👇 Measurement Sheet 👇
| S. No | Description | No | L | B | H | QTY Unit |
| 1 | Excation & Back filling | 1 | 1.36 | 1.36 | 1.525 | 2.821 Cu.m |
| 2. | Brick bat chhara filling | 1 | 1.36 | 1.36 | 0.100 | 0.185 Cu.m |
| 3. | Sand filling | 1 | 1.36 | 1.36 | 0.075 | 0.139 Cu.m |
| 4. | P.C.C - 1:3:6 | 1 | 1.36 | 1.36 | 0.15 | 0.277 Cu.m |
| 5. | Brick Masonry - Long wall | 2 | 1.21 | 0.23 | 1.20 | 0.668 Cu.m |
| Brick Masonry - Short wall | 2 | 0.75 | 0.23 | 1.20 | 0.414 Cu.m |
|
| 6. | Plaster - Long wall | 4 | 1.21 | 1.20 | 5.808 Sq.m |
|
| Plaster - Short wall | 4 | 0.75 | 1.20 | 3.600 Sq.m |
||
| 7. | R.C.C - M-25 - Top slab | 1 | 1.21 | 1.21 | 0.125 | 0.183 Cu.m |
| 8. | TMT Bars- Long span: 8 mm Dia, c/c 150 mm |
9 | 1.285 | 0.395 | 4.569 Kg |
|
TMT Bars- Short span: 8 mm Dia, c/c 150 mm |
9 | 1.285 | 0.395 | 4.569 Kg |
||
| 9. | Manhole Cover with Frame |
1 | 1 Nos |
Ref Images
👆 Plan 👆
👆 Cross Section 👆
- First Layer Brick bat koba filling: 100 mm thick
- Second Layer Sand filling : 75 mm Thick (Void filling)
- Third Layer P.C.C (1:3:6) : 150 mm Thick
- Fourth Layer Brick wall casting
- Fifth Layer Plaster
- Sixth T.M.T Bars placing
- Seventh Layer R.C.C slab casting
For, Jigar Darbar
Tags:
Civil Engineering