The
Mettur Dam is one of the largest dams in India and the largest in Tamil Nadu, located across the river Cauvery where it enters the plains. Built in 1934, it took 9 years to complete.
Maximum height and width of the dam are 214 and 171 feet respectively. The dam receives inflows from its own catchment area, Kabini Dam and Krishna Raja Sagara Dams located in Karnataka. There is a park at the base of the dam called Ellis Park maintained by the Tamil Nadu Public Works Department. It provides irrigation and drinking water facilities for more than 12 districts of Tamilnadu and hence is revered as the life and livelihood-giving asset of Tamil Nadu