Made of concrete, the different sections of this dam can function independently. By the sheer strength of the dam’s weight, it can hold back a total of 55.4 million cubic metres of water! With a water spread area of 323.75 hectares, Mattupetty Dam services a catchment area of 105 square kilometres.

The Mattupetty Lake is a perennial lake which never dries up even in the summers, while swelling to its maximum capacity in the monsoon when the rains add to its volume. This availability of water continuously round the year makes it very popular with birds and wild animals that rely on this reservoir to quench their thirst.