River
Periyar River
Kerala's longest river, rising in the Western Ghats and shaping Idukki's dams, forests and plantations.
Rank: Longest river in Kerala
Dam · Periyar
Idukki Arch Dam
- Category
- Dam
- River
- Periyar
- Height
- 169 m
- Type
- Double-curvature arch
Overview
About Idukki Arch Dam
The Idukki Arch Dam rises across a narrow gorge between the Kuravan and Kurathi hills. Together with the Cheruthoni and Kulamavu dams it forms the Idukki reservoir that feeds the underground power station at Moolamattom.
Construction began in 1969 and the dam was completed in 1973. It is one of the best known engineering landmarks in Kerala.
Key facts
- Height
- 169 m
- Type
- Double-curvature arch
- Completed
- 1973