The process for hydroelectric spillway

In China, the Yangtze River, built the world's largest hydroelectric power plant "Three Gorges».
Was commissioned July 4, 2012.
Disputes between scientists are more good or bad brought this station. But now we are not talking about it.
Let's look at it in action, how the process of the spillway.














Source: ololoshaaa.livejournal.com