The individual segments of the dam are sealed on the upstream side with copper sheets set into the concrete.

The flexure of the individual segments under water pressure is constantly monitored.

By means of pendulums suspended on the dam wall the degree of flex can be measures.

The huge annular piston valves can deliver up to 75 m3/s (2,600 cu ft/s) of water.

By means of the observation well, the long term condition of the mountain is investigated.