瀑布几乎从来不结冰 The Niagara River handles 212,000 cubic feet of water per second. The averag e depth is approximately 16 feet with a flow rate of 4 to 8 miles per hour. The Niagara River does not freeze over. The Falls of Niagara and the river b elow the Falls does not freeze either. The volume of water going over the Fa lls, the depth and speed of the water below the Falls also precludes freezin g. The water will not be stopped or frozen solid.