Tanahun hydropower project sees rapid installation of towers

Kathmandu: As many as 32,000 towers have been installed for the construction of the transmission line of the 140 MW Tanahun Hydropower Project. The towers have been installed for the construction of the transmission line under the third package of the project. Chief of Project Engineering and Technical Division Shyamjee Bhandari shared laying the foundation for 51 towers has been so far completed.

A total of 94 towers would be installed for the construction of the transmission line. Under package 3, KEC International, India is constructing a 36-km double circuit transmission line of 220-KV from Damauli to Bharatpur, Chitwan.

A total of 59 bighas (23 ropani, five ana) would be acquired for the construction of the transmission line. Land within Byas municipality-13 and 14, Bandipur rural municipality-6, Anbukhaireni rural municipality-6, Devghat rural municipality-4, and 5 of Tanahun would be acquired for the same.

The Song Da Corporation, Vietnam Kalika Construction Pvt. Nepal JV is constructing the 140-meter tall dam under project phase-1. As part of the project, two diversion tunnels are being built for the construction of the main dam.

Likewise, slope cutting from both the left and right sides of the dam is also being done. The breakthrough concrete lining has also gained momentum in diversion tunnel-1 with a length of 538.5 meters and 622.5 meters long diversion tunnel-2. Under package-2, Shino Hydro Corporation China is carrying out works related to the underground powerhouse, main tunnel, and supply, installation, and operation of hydromechanical and electromechanical equipment.

The digging of the powerhouse has been completed and the task of concreting is continuing. The tailrace tunnel construction is in the final stage. Installation of penstock pipe and construction of surge tank construction is underway.

Digging of 790-meter section of the 1456-meter main tunnel has been completed. Total cost of the project, including for transmission line, rural electrification and interest of the construction period is 550 million USD.

The financial management of the project was done with ADB funding of 150 million USD, JICA 184 million USD, European Investment Bank 85 million USD and Nepal government-Nepal Electricity Authority 86 million USD.

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