Idukki Arch Dam over Periyar River in Kerala
Idukki Arch Dam in Kerala is Asia’s tallest arch dam and has a height of 168 metres (550 feet). It stands between two granite hills called Kuravanmala (839 metres) and Kurathimala (925 metres). Incidentally a tribal chief named Kolumban had escorted a British explorer to site of Idukki Dam.
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