There is no such thing as an average river. Rivers vary in size (width), length and depth. Additionally, it would also depend on the time of year. Springtime when ice melts (as in the Colorado River) it is higher than in the Wintertime.
The average discharge is 281,000 cu ft/s (7,957 m³/s)
4,100 cubic feet per second.
About 15 million acre feet annually.
65 cubic metre per second
152 gallon per hour
The Colorado River Compact has several purposes: 1) to apportion the use of water in the Colorado River Basin (i.e. the Colorado River and all its tributaries); 2) promote interstate comity; and 3) to secure the ability of the Upper Colorado River Basin to develop at its own pace (without the compact, the more populous Lower Basin would have tried to develop a claim as much water as possible--the compact preserves the ability of the Upper Basin to use water).
It has a flow of about 15 million acre feet per year.
Much of it comes from the melting winter snows that accumulate in the Rocky Mountains only to melt and head for the sea come spring via the Colorado River.
Hoover Dam is One of the Most Successful Public Works Projects Ever. Colorado river, vengeful and unreliable, had taken under control.
Because of the much larger drainage basin.
The Colorado River does not flow into an inland sea, therefore it has a much smaller impact as it is diverted for irrigation purposes. Whereas the Aral sea has been caused to retreat substantially due to the river diversion away from the sea
how much water is in the danube river
Numerous possible causes such as - during a drought or when too much water is taken for irrigation.
To the center of the river
it depends what river you are talking about
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The formation of the Grand Canyon was accomplished by the constant erosion of the rock by the Colorado River over some 17 million years. Over time the river was able to carve a very deep channel into the Colorado Plateau. Links are provided to specifics regarding the geology of the Grand Canyon.