Idukki Arch Dam - Asia's first arch dam
Idukki Arch Dam is the first arch dam in Asia. It is also the largest reservoir in Kerala. This reservoir is located on the Periyar river in the Idukki district. Idukki dam is situated at Painavu in vazhathoppu grama panchayath. The Kerala state electricity board owns the dam, which is being built to generate electricity. The dam is located across the Periyar river in the Idukki district. The hydropower project was inaugurated in 1976 by the then prime minister Indira Gandhi. The main dam of the project is connected to the kuravan- kurathi hills. The biggest feature of this reservoir is that it is made up of three dams. The dam was built to prevent the rising water from flowing through the cheruthoni river. Similarly, the kulamavu dam was constructed to prevent the loss of water through the kilivalli stream.
The Idukki Dam, located in Kerala, India, is a 168.91 m (554 ft) altitudinous bow levee. The levee stands between the two mountains – Kuravanmala (839) m and Kurathimala (925) m. It was constructed and is possessed by the Kerala State Electricity Board. It supports a 780 MW hydroelectric power station.
It's erected on the Periyar River, in the notch between the Kuravan and Kurathi Hills in Kerala, India. At167.68 meters, it's one of the loftiest bowheads in Asia and the third altitudinous bow levee. It started generating power on 4 October 1975. (1) Technically, the levee type is a concrete double curve parabolic, thin bow levee.
This levee was constructed along with two other heads at Cheruthoni and Kulamavu. Together, the three heads have created an artificial lake that's 60 km ² in area. The stored water is used to produce electricity at the Moolamattom Powerhouse, which is located near rocky grottoes. The Government of Canada backed in the structure of the levee with long term loans and subventions