Originally Posted by
Tartiflette Fan
I have to say I am rather confused about the comments whether this is an earth-dam or reinforced -concrete.
The dam is mostly earthen as can be seen on this view from the West bank.
Towards the Eastern side, there was a concrete channel in which was built the sluice gates and the HydroPower Plant. It is hoped that the walls and base of the channel are still intact so that a significant water level will be retained upstream as per this extract from James7's linked article above.