Practice mode Water Management

After a weir is built, the downstream river bed keeps eroding and gradually lowers. What is this process called?

Correct answer C. Retrogression

Explanation

Retrogression is the progressive lowering of the river bed downstream of a weir, caused by clear water released below the structure picking up sediment from the bed.

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After a weir is built, the downstream river bed keeps eroding and gradually lowers. What is this process called?

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After a weir is built, the downstream river bed keeps eroding and gradually lowers. What is this process called?

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