Feeder creeks, or tributaries.
Tributaries
Smaller streams that flow into rivers are called tributaries. These tributaries contribute to the overall flow and volume of the main river.
The rivers Cherwell, Wey and Medway are the main tributaries of the River Thames.
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Small streams and rivers that flow into larger ones are called tributaries. A tributary does not flow directly into a sea or ocean.
Rivers and streams that flow in to a larger river are called tributaries. They all form in the same spot.
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A whirlpool. An eddy is water that flows opposite from the normal flow of a river. When a river's water level rises, tributaries that point in the opposite direstion of the flow of the river will rise too. This water will flow upstream in the tributaries and fill them to the level of the river. In some regional areas, such as southern states of the US, an eddy is a part of a river that is set off from the river where the water has no flow at all unless the river is rising.