Mullaperiyar Dam is build over the headwaters of the Periyar River in Kerala, India. The Periyar National Park, Thekkady is located close to the Periyar reservoir. The backwaters of this dam form this park. Government of Tamil Nadu operates the functions of the park and according to a 999-year lease agreement the dam was built during erstwhile British colonial rule.
Name of Mullaperiyar Dam is derived from a portmanteau of Mullayar and Periyar. As the dam is located at the convergence of the Mullayar and Periyar Rivers, the river was called Mullaperiyar.
Three minor cracks were noticed on the top surface of the Mullaperiyar dam after the tremor in Idukki district
The government of Tamil Nadu has proposed an increase in the storage level of the dam from the currently maintained 136 feet (41 m) to 142 feet (43 m). The dam has a storage capacity of 443.23 million cubic meters. The Kerala government has opposed this move, citing safety concerns for the more than hundred year old bridge and especially for the thickly populated districts downstream
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