8 gallons per second
5,720m3\S
93,150,000 US gallons per minute
All rivers carry some dirt in them as they flow. So as the Niagara river goes over the Falls, there would be some dirt in the water.
Approximately 20% of the world's fresh water flows over Niagara Falls. This immense volume primarily comes from the Great Lakes, particularly Lake Erie, which feeds into the Niagara River. The falls are a significant natural landmark, but in the context of global fresh water resources, they represent only a small fraction of the total.
Niagara Falls
Approximately 168,000 cubic meters of water flow over Niagara Falls every minute, which translates to about 5.7 million cubic feet per minute. Over the course of a year, this amounts to around 54 trillion gallons of water cascading over the falls. The immense volume contributes to Niagara Falls being one of the most powerful waterfalls in the world.
About 3.24 billion (3.24*1010) gallons of water per day flows over Niagara Falls.
The Niagara Escarpment, a long tall cliff that the Niagara falls goes over.
It is close to 140 acres, but of the over 400 acres in Niagara Falls State Park (Niagara Falls) is under the water.
The average flow rate of water over the lip of Niagara Falls is 202,000 cubic feet per second or 5,720 meters cubed per second. This rate increases in wet seasons while tapering in drier or colder seasons. Speed wise, in easier to relate terms, the water is moving over the falls at 32 kilometers per hour, or 20 miles per hour. Specifically, the Canadian/Horseshoe falls goes at 32kph, but the American falls I don't know.
water flowing over rocks and glaciers did it too
Water. ; )Well, the Niagara Escarpment also has something to do with it too. Its a long tall ridge-line separating Lake Ontario and Lake Eire. It was formed due to unequal erosion. The Niagara River flows between the lakes and goes over the edge of the cliff.