Tanahu Hydropower Ltd (THL), the state developer of the 140 MW Tanahu storage hydropower project on the river Seti in Nepal's western development region, has re-issued a tender for the design and construction of the project's headworks. Bids are invited by 13 April for the construction of a 140 m-high concrete gravity dam with a spillway, plunge pool and downstream auxiliary dam, as well as river diversion works comprising two diversion tunnels and temporary cofferdams, slope stabilization/protection measures within the reservoir area, and construction of grouting galleries, as well as spoil disposal areas. The tender was first issued in April 2019. The US$ 505 million project, formerly known as Upper Seti, will be one of Nepal's largest storage projects with annual output of 588 GWh. Located 150 km west of Kathmandu near Damauli, it is being financed by the Asian Development Bank and the European Investment Bank.
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