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Periyar

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description Periyar Overview

The Periyar is a river in Kerala, India, approximately 244 kilometers long, flowing from the Western Ghats toward the Arabian Sea system. It is an important source of water and hydropower in the state, and the Idukki arch dam is built across it in Idukki District. The river basin supports urban, agricultural, industrial, and ecological uses across Kerala. [Kerala Irrigation Department](https://www.irrigation.kerala.gov.in/sites/default/files/2022-02/Room4River_Periyar_Report.pdf)

help Periyar FAQ

How long is the Periyar River?

The Periyar is approximately 244 kilometers long. It is Kerala's longest river and rises in the Western Ghats before flowing toward the Arabian Sea system.

What is the Idukki Dam's connection to the Periyar?

The Idukki Arch Dam is built across the Periyar River in Kerala. It is about 168.91 meters high and supports a 780-megawatt hydroelectric power station. [Government of Kerala information](https://idukki.nic.in/en/tourist-place/idukki-arch-dam/)

Does the Periyar flow through protected wildlife areas?

Yes, the upper river and its basin include the Periyar Tiger Reserve landscape. The river's Western Ghats setting is important for forests, wildlife, and water supply.

Why is the Periyar important to Kerala?

It supplies water, supports agriculture, and powers hydroelectric projects. The Idukki project and the 244-kilometer river course make it central to Kerala's water and energy infrastructure.

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