Design, Construction and Commissioning of RCC overhead tank of 1.00Lac L Capacity and 12M Staging, RCC ground water reservoir of 2Lac L and 2Nos open well Submersible pump including switch room at Rehab site of Pirawa village under MSA of Umrer Area.

Amount

Designing (aesthetically), and constructing RCC elevated service reservoirs of following capacity with RCC staging consisting of columns, internal and external bracings spaced vertically not more than 4.5 metres centre to centre for ESR having capacity upto 500 cum and not more than 6 m c/c for ESRs having capacity above 500 Cum including excavation in all types of strata, foundation concrete, cement plaster with water proofing compound to the inside face of the container including refilling disposing off the surplus stuff within a lead of 50 metres, all labour and material charges including lowering, laying, erecting, hoisting and jointing of pipe assembly of inlet, outlet, washout, overflow and bypass arrangements as per departmental design, providing and fixing accessories such as M.S. ladder, C.I. manhole frame and covers, water level indicators, lightening conductor, G.I. pipe railing around walk way and top slab, providing spiral stair case from ground level to roof level, M.S. grill gate of 2 M height with locking arrangement of approved design, B.B. masonry chambers for all valves, ventilating shafts, providing and applying three coats of cement paint to the structure including roof slab, epoxy painting to internal surface and anti termite treatment for underground parts of the structure and giving satisfactory water tightness test as per I.S. code. The job to include painting the name of the scheme and other details on the reservoir as per the directions of Engineer-in-Charge. 1.00 Lakh litres capacity.

The design of the structure be in accordance with relevant I.S. specification (I.S. 3370 - 1965 or revised.)

The design shall satisfy the stipulations as per I.S. 1893 - 1984 and I.S. 13920 / 1993 for seismic force and I.S. - 11682 / 1985 for R.C.C. staging of overhead tanks.

For design having more than 6 columns, provision of internal bracing is obligatory. External bracings is also obligatory.

The entire structure shall be in min M-300 (kg/cm^2) or M-30 (MPa)mix only.

Plain round mild steel bars grade-I conforming to I.S. 432 part-I or high yield strength deformed bars conforming to I.S. 1786 or I.S. 1139 shall be used, grade-II mild steel bars will not be allowed.

Irrespective of the type of foundation proposed in the design, one set of bracing be provided at the ground level

These rates include providing M.S. ladder for E.S.R.s upto 2 lakh litres capacity and providing spiral staircase for E.S.R. above 2 lakh litres capacity.

Staging shall have to be designed with stresses of min. M-200 (kg/cm^2) or M-20 (MPa) concrete for ESR. However all RCC construction should be done in min. M-300 (kg/cm^2) or M-30 (MPa).

These rates are including the cost of uplift pressure if any and entire dewatering during execution. In case of water logging area where water is stretch at shallow depth, extra provision of dewatering shall be made as per site condition.

All conditions given in the Member Secretary's Circular No. MJP / TS-I / 350 / 1668 dt. 2-8-97 and MJP / S-I / 350 / 2127 dt. 13-7-99 shall be strictly followed and additional cost, if any, due to these conditions is included in the rates mentioned below.

75% part rate shall be payable for reinforcement concrete and plastering items of containers of E.S.R. till satisfactory hydraulic testing for water tightness is given; and till that work shall be treated as incomplete.

Designing (aesthetically), and constructing RCC ground service reservoirs / RCC sumps in M-300 mix of required capacity including excavation in all types of strata, foundation concrete, container walls, bottom slab top RCC roof slab / or dome, 20 mm thick cement plaster with water proofing compound in CM 1:3 proportion to inside face of the container, including epoxy paint from inside including refilling and disposing of surplus stuff within lead of 50 M, all labour and material charges, for laying and jointing of pipe assembly for inlet, outlet washout, over flow and bypass arrangement consisting of C.I. M.S. D/F. pipes, specials and valves of given diameters, providing and fixing accessories such as M.S. ladder inside and outside, C.I. Manhole frame and cover, water top slab, B.B. masonry chamber for all valves, ventilating shafts, including giving satisfactory hydraulic test and water tightness test as per IS code and providing three coats of cement paints to all exposed surface of structure including roof surface etc. complete as per design data, criteria, obligatory requirements and detailed specifications. Anti-termite treatment shall be given for underground portion of the structure. 2 lakh litre capacity.

The design shall be in accordance with various relevant I.S. specification (I.S. 456/1978, I.S. 875 - 1987, I.S. 3370 -1965 or revised.)

Only M.S. bars grade I conforming to I.S. 432 part-I or high yield strength deformed bars conforming to I.S. 1786 or I.S. 1139 shall be used. Grade -II M.S. bars shall not be used.

Entire structure shall be in min. M-300 (kg/cm^2) or M-30 (MPa) only.

The scope of pipe assembly work shall be upto 5 metre beyond outside face of the wall, cost of pipes valves and specials is not included in the rate but labour cost for laying and jointing is included.

The G.S.R. / Sump above 15 lakh litres capacity shall be in two compartment.

The Job includes designing the structure for uplift pressure and dewatering if required during entire execution and disposal of surplus excavated stuff within lead of 50 metres as directed by Engineerin-charge. If uplifts considered in design, then these rates shall be increased by 7.5%.

G.S.R. outlets shall be with bell mouth of approved pattern in bottom slab and cost of designing bell mouth is included in the rate. Sump well includes cost of suction pit required at bottom.

For pipe diameters upto 300 mm only CI pipes and CI specials shall be used. For pipe diameters above 300 mm, M.S. pipes and specials minimum 10 mm thick shall be used with proper anticorrosive epoxy treatment from inside and outside

Cost of pump house is not included in these rates.

Above rates are applicable for Seismic Zones 2, 3 and 4.

75% part rate shall be payable for reinforcement, concrete and plastering items of all types of G.S.R.s and sumps till satisfactory hydraulic testing for water tightness test is given and till that work shall be treated as incomplete.

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work min. 80 mm dia nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) : min. 80 mm nominal bore

Providing and fixing gun metal non- return valve of approved quality (screwed end) min. 80 mm nominal bore Horizontal

Design & Construction of 1 no. switch room/operator room of 6.05 sqm plinth area with RCC roof slab at min. height 2.5m to be constructed over roof of ground service reservior alround brickwork min. 230mm thick in C.M. 1:6 with min. 1mm thick mild steel sheet door & window with necessary frame of required size, internal & external plaster, internal & external painting all complete as per direction of Engineer in charge.

1- Brickwork with fly ash bricks in cement mortar min. 1:6 & min. 230 mm thick & min. 2.5 Mtr height

2-Min. M-20 grade to be used for all RCC work

3- RCC roof slab min. 100 mm thick over switch room

4- RCC lintel over door and window , min. 100mm thick

5- RCC chajja over door and window , min. 100 mm thick & min. 600mm long

6- M.S. angle frame of size min. 40x40x6mm for door & windows. Door size = 1.0 x 2.0 m, window size = 0.6 x 1.2 M.

7- min. 1mm thick M.S. sheet door with frame for door & window With MS aldrop for door of size 300 x 16 mm with min. 2 coats of synthetic enamel paint.

8- Wall plaster inside and outside in Cement morter min. 1:4

9- 1st acrylic destemper for inside & Exterior paint for outside portion.

Submersible monoblock pump set (with bronze/stainless steel (CF8M) Impeller) Horizontal/Vertical-upto 3 stages (motor with water lubricated bearing to accept entire hydraulic thrust) 20.0 HP (Discharge = 500 lit./min and Head = 20 m.)

Supplying and erecting flat flexible 3 core 6 sq mm PVC sheathed submersible type copper cable suitably clamped at fixed intervals with column pipe assembly complete.

Supplying and erecting fully Automatic star/delta starter suitable for 15 H.P. to 25 H.P. for 3 phase squirrel cage motor totally enclosed with overload and no volt relay complete erected on provided angle iron frame.

Construction of Boundary wall around ground water sump and overhead tank at Rehab site as per detail enclose.Total length of boundary=94 mtr & size of entry gate 5x1.5 mtr,RCC framed B/W compound wall with RCC copping at Top,Minimum height of compound wall from GL is 1.8 Mtr.

Note :- 1- Trench excavation depth = min. 1.5 mtr.

2- Sand filling under footing = min.100 mm thick

3- PCC (1:3:6) = min. 100 mm thick

4-Min. M-20 grade to be used for all RCC work

5- RCC in raft of column = min. 1000 x 1000 x 200 mm thick (Including shuttering & reinforcement)

6- RCC in plinth beam = min. 230 x 300 mm. (Including shuttering & reinforcement)

7- RCC in Column = min. 230 x 230 mm. (Including centring & reinforcement)

8- External & Internal min. 12 mm plaster in cement morter 1:6 for both side.

10- Acrylic smooth Exterior paint on both side of boundary wall.

11- Structural steel gate of size 5.00 x 1.5 Mtr. With synthetic enamel paint.

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