Where is Mullaperiyar Dam?

Mullaperiyar Dam is a gravity dam made with lime stone and surkhi and the cunstruction technologies of 19th century on the Periyar River. It is located 881 m (2,890 ft) above mean sea level on the Cardamom Hills of Western Ghats in Thekkadi, Idukki District of Kerala, India. It was constructed in 1895 by the British Government, to divert water eastwards to Madras Presidency area (the present-day Tamil Nadu). It has a height of 53.6 m (176 ft) from the foundation and length of 365.7 m (1,200 ft). The Periyar National Park, Thekkady is located around the dam’s reservoir. The dam and the river are located in Kerala, but the dam is controlled and operated by Tamil Nadu. The safety of the dam has been a matter of concern and a point of dispute between Kerala and Tamil Nadu States.

Earlier known as the Periyar dam as it was basically meant to dam the Periyar river, the present name Mullaperiyar is derived from a portmanteau of Mullayar and Periyar, at the confluence of which the dam is located.