Close View of Idukki dam

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The Idukki Dam is a double curvature Arch dam constructed across the Periyar River in a narrow gorge between two granite hills locally known as Kuravan and Kurathi in Mariyapuram village in Idukki District in Kerala, India. At 168.91 metres (554.2 ft),[1] it is one of the highest arch dams in Asia. It is constructed and owned by the Kerala State Electricity Board. It supports a 780 MW hydroelectric power station in Moolamattom, which started generating power on 4 October 1975.[2] The dam type is a concrete, double curvature parabolic, thin arc dam.[3] The Indo-Canadian project was inaugurated by the Prime Minister Indira Gandhi on February 17, 1976.