The Economic Times

Dam in China trapped millions of tonnes of water, rising 7 feet daily and threatening millions. How did engineers avert disaster?

The 2008 Wenchuan earthquake triggered a massive landslide that blocked China's Tongkou River, creating the unstable Tangjiashan lake and threatening millions downstream. Authorities evacuated residents and airlifted heavy machinery to carve a controlled drainage channel through the natural dam. The operation averted a catastrophic flood and informed landslide-dam management strategies later applied during China's 2018 Baige landslide crisis.