Idukki Dam
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Overview
Idukki is an arch dam on the Periyar in Kerala, about 169 m high, built between two hills.
It is a double-curvature arch dam across a gorge between the Kuravan and Kurathi hills on the Periyar.
It was built with Canadian help and completed in 1973, and its water runs the underground power station at Moolamattom.
Together with the Cheruthoni and Kulamavu dams, it forms the Idukki reservoir.
It is one of the highest arch dams in Asia.
The dam is in Idukki district.
It generates a large share of Kerala's hydroelectric power.
The dam's gates were opened during the 2018 Kerala floods.
Geography and key facts
- Periyar, Kerala
- Arch dam
- Completed 1973
- Moolamattom power station
Why it matters for UPSC
Asked in a 1996 dam pairs question.
Note for UPSC
Periyar, Kerala; an arch dam between two hills.
Prelims pairs dams and projects with their rivers and states.
Asked in PYQs
- UPSC Prelims 1996 · Q54Which of the following pairs are correctly matched? I. Idukki — Thermal power station II. Sabarigiri — Hydro-electric project III. Ghatprabha — Irrigation project IV. Ram…
Questions from our Prelims bank whose text names Idukki Dam.
Key facts
- Type
- Dam / reservoir
- State / UT
- Kerala
- Basin
- West-flowing (Western Ghats)
- River
- Periyar
- Coordinates
- 9.843°N, 76.976°E
- Asked in Prelims
- 1 question · 1996
From the Map Explorer data; positions are for orientation.
More dams and reservoirs (same basin first)
Also in the West-flowing (Western Ghats) basin
Other places in Kerala
All dams and reservoirs · Revision list · Most asked in PYQs