Relates to your post and an earlier post by Lone Palm.
3 Gorges Dam is a Tragedy Carved into Concrete James Neil Cooper The Asia Show
Posted 8 hours ago. You can get the transcript at the YouTube link and there are some videos of flooding. It does not have video of the Dam itself. (Concrete used reportedly contained corncobs and bamboo...wonder how long that will hold? Will the water pressure erode the underside of the dam footings? No video...who can say! )
Here is one of his videos from last year showing another dam with some overtopping occuring.
You could almost wrtie a book on how the money set aside for building the dam was laundered by everyone within a hundred miles who had any say so at all. It was epidemic. A wonder that the dam was even built and lasted as long as it has.