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How much water does the Rio Grande discharge on average?
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Rio Grande
The Rio Grande basin and its drainage network.
The average discharge rate of the Rio Grande is approximately 3,000 cubic feet (85 cubic metres) per second.1
Additionally, it is estimated that the river has an average annual yield of about 2.6 million acre-feet (3.2 billion cubic metres). These figures reflect the river's flow following significant human intervention, such as the construction of the Falcon Dam in 1953, which altered the volume of water reaching the Gulf of Mexico.1