Maneri Dam on the Bhagirathi River (India)
The dam is equipped with 4 Tainter gates (Radial floodgates), and the hydro power house produces 90 MW of hydroelectric power.
For more info about the Maneri Dam, read en.wikipedia.org/wiki/Maneri_Dam.
For more information about this type of floodgates, read en.wikipedia.org/wiki/Tainter_gate.