About Idukki Arch Dam
The Idukki Arch Dam is a double-curvature thin arch dam constructed across the Periyar River in a narrow gorge between Kuravan and Kurathi hills. Standing at 168.91 meters, it is one of the highest arch dams in Asia. Built by the Kerala State Electricity Board with Canadian technical assistance, it was inaugurated in 1976 and supports a 780 MW hydroelectric power station.
Visitors guide
Visitors can view the massive concrete arch dam structure spanning between two granite hills. Tourist access is restricted to battery-operated buggy cars due to security protocols. The site offers panoramic views of the reservoir and surrounding Western Ghats landscape. Photography and electronic devices are prohibited on the dam premises. Visitors can explore designated viewing areas and enjoy boating activities on the reservoir waters.
Key highlights
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One of the highest arch dams in Asia at 168.91 meters tall
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Double-curvature thin arch design between Kuravan and Kurathi hills
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Battery-operated buggy car rides for tourist access
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Panoramic views of the Periyar River reservoir
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Boating facilities available on the reservoir
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Part of the 780 MW hydroelectric power project
History of Idukki Arch Dam
Construction began on April 30, 1969, under the guidance of engineers including C.V. Mathews. The idea for the dam was first conceived in 1919. Built with extensive Canadian technical assistance under the Colombo Plan, it was inaugurated by Prime Minister Indira Gandhi on February 17, 1976. It represents a major engineering achievement as India's first double-curvature arch dam.
Culture & Context
The dam connects the Kuravanmala and Kurathimala mountains, which feature in local folklore. It stands as a symbol of Kerala's hydroelectric development and engineering prowess, named after the Idukki district where it is located.
Route
| By air |
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