【Introduction】On September 1, 1994, there was a 50-year hyperconcentrated flood event of Beiluo River, a tributary of Yellow River at its middle reach in northern China. Flow discharge is around 6,280 m3/s, sediment concentration is 690 kg/m3. Total sediment in 4 days of this event is almost 0.136 billion tons, and total water volume is 2.04 billion m3. This video shows the flood passed through a bridge at Baishui County of the upper reach of Beiluo River. It is really amazing that the bridge can sustain such a huge flood event with a large amount of sediment!
