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Punatsangchhu-I Hydroelectric Project

Bhutan

Location: Wangdue Phodrang Dzongkhag, Bhutan

Client: Punatsangchhu-I Hydroelectric Project Authority (PHPA)

Consultant: Water and Power Consultancy Services (India) Ltd. (WAPCOS)

Contractors: Hindustan Construction Company (HCC)

The Punatsangchhu-I hydroelectric project is located in the Southern Himalayas, about 80 km east of Bhutan’s capital Thimphu. The project’s concrete dam is 130 m in height by 239 m in length and stretches across the Punatsangchhu River. The facility includes an underground powerhouse that will generate power via six 200 MW turbines when complete in 2019.

The construction of the dam will start after the slope stabilization work is complete. Encardio-rite was appointed to do the instrumentation work i.e. setting up a digital inclinometer system, piezometers & multi-strands anchor load cells for slope stability monitoring.

Encardio-rite was awarded the contract for supply, installation, commissioning and monitoring of instruments for powerhouse complex. Instruments used included piezometers, borehole extensometers, load cells, measuring anchors, bi-reflex targets and portable read out units.