Installation of various instruments and monitoring system at Thebi Irrigation Scheme (Third Attempt)

Supplying, installing, testing, and commissioning of a V-Notch Weir

(Mechanical Flow Measuring Device) for measuring low flow seepage in

dams. The device shall have a notch angle of 22.5°, 45°, 60°, or 90°

depending on discharge range, a stainless steel SS-304 / SS-316 plate with

thickness of 3–5 mm, and be suitable for measurement ranges of

1 approximately 0–50 L/s depending on notch angle. The weir shall have 3 Nos 19250

±1% full-scale reading accuracy, operate under 5–100% humidity,

temperature −20°C to +60°C, and provide corrosion protection through anti-

corrosion finish. Complete in all respects as directed by the Engineer-in-

Charge.With different sizes mentioned below: (1) 90° V-NOTCH-20 X

Secticin 15 Lit/Sec

Providing, installing and commissioning permanent Ground Control Point

(GCP) Settlemnt Marker comprising MS base plate (250×250×5 mm

conforming to IS 2062), GI riser pipe 25 mm dia (medium class as per IS

1239), sand filling (clean river sand, loose), optional PVC/GI outer casing

(min 100 mm dia), precast concrete cover (M20, 500×500×50 mm with

2 central hole), MS/GI reference cap, and painting in black & white 40 Nos 10000

checkerboard pattern using weather-resistant enamel paint, complete with

excavation, installation, alignment, and all materials, labour, tools, and

accessories, suitable for survey works using Total Station / drone survey,

complete as per specifications and direction of Engineer-in-Charge.

Providing & Laying in position 'NOMINAL MIX' cement concrete using

cement sand and crushed aggregate by machine mix incl. necessary

3 formworks ,centering ,scaffolding compaction by mechanical vibrator curing 21 Cum 3822

as directed with all lead & lift etc (C) Concrete grade 1:2:4 and MSA-

40mm(Graded))

(Rupees Five lakh Thirty Eight thousand Twelve Only )

I/We am/are willing to carry out the work at...… %above/below percent (Should

Be written in figures and words) of the estimated rate mentioned above. Amount of my/our tender works out as under.

*Estimated amount put to tender Rs. *Estimated amount put to tender Rs.

Deduct % Below Rs. Add % above Rs.

Net Rs. Total Rs.

(In words) Rupees (In words) Rupees

1 All works shall be carried out as per Public Works Department Hand Book and other specifications of Division or as directed.

2 All the columns in schedule should be filled in ink and total of the entries in the last column should be struck by the contractor under

his signature.

3 Rates quoted include clearance of site (prior to commencement of work and its close) in all respect and hold good for work under all

condition, site, moisture, weather etc.,

4 To be continued on additional sheets, if found necessary

Deputy Executive Engineer

Irrigation Sub Division No.2

Sch.B Thebi