WORK FOR SUPPLY, INSTALLATION, TESTING, COMMISSIONING OPERATION & MAINTENANCE OF REAL TIME STRUCTURAL HEALTH MONITORING INSTRUMENT SYTEM AT HATHMATI RESERVOIR PROJECT

Name of work :WORK FOR SUPPLY, INSTALLATION, TESTING, COMMISSIONING OPERATION & MAINTENANCE OF REAL

TIME STRUCTURAL HEALTH MONITORING INSTRUMENT SYTEM AT HATHMATI RESERVOIR PROJECT

Bill of Quantity

Item No Description of Item Qty Unit Rate in Figures Amount

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 central hole), MS/GI reference cap, and painting in black & white 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.

Supplying, installing, testing, and commissioning of a mechanical flow measuring device (V-Notch &

rectangular weir) 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

2 be suitable for measurement ranges of approximately 0–100 L/s depending on notch angle. The weir shall have 3.00 No 21500.00

±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.

Providing, installing, and commissioning of open standpipe piezometer using borehole method, complete with

PVC standpipe (12–25 mm dia), porous/slotted tip (300–600 mm), sand filter, bentonite seal,

3 cement–bentonite grouting, MS protective casing with cap, and all accessories, complete as per specifications 7.00 No 20900.00

and direction of Engineer-in-Charge.

Supplying, testing, and commissioning of portable Water Level Sounder (Electric Water Level Indicator) for

accurate measurement of groundwater levels in boreholes, standpipe piezometers, and observation wells,

complete with probe, graduated cable, reel, battery, and all accessories, as per specifications and as directed

by the Engineer-in-Charge.

Range: Up to 100 m / 200 m / 300 m

Accuracy: ±5 mm or better

Probe material: Stainless steel and ABS

Markings : at 1 m interval with mm graduations

100 mm Diameter Borehole Drilling in Earthen Embankment Dam, including mobilization and demobilization

5 charges of drilling machines, equipment, tools, tackles, and labour, complete as per site requirements and 80.00 Rmt 6750.00

direction of Engineer-in-Charge

Bill of Quantity

Item No Description of Item Qty Unit Rate in Figures Amount

Supplying, installing, testing, and commissioning of an Automatic Weather Station, integrated for real-

time monitoring and live data acquisition, comprising air temperature sensor (Platinum resistance, −20°C to

+60°C, ±0.2°C accuracy, 0.1°C resolution), relative humidity sensor (0–100%, ±3% accuracy), ultrasonic wind

speed and direction sensor (0–60 m/s, 0–360°, ±0.5 m/s, ±5°), temperature-compensated air

6 pressure sensor (600–1200 hPa, ±0.2 hPa), ISO Class 1 pyranometer (0–2000 W/m², ±3%), evaporation 1.00 No 355000.00

pan (−20°C to +60°C, Ø ≥1.2 m, ±1%), all with corrosion-resistant enclosures, lightning protection, SDI-

12/RS485/4–20 mA outputs, stainless steel/aluminum/PVC mounting supports, cables, tools, and full

documentation, complete in all respects as directed by the Engineer-in-Charge.

Deputy Executive Engineer Executive Engineer

Himatnagar Irrigation Sub Dn No.1 Sabarkantha Irrigation Division

Himatnagar Himatnagar