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A river training work is generally required when river is:

A river training work is generally required when river is: Correct Answer Meandering type

In order to limit the movement of the bank of a meandering river, certain structures are constructed on the riverbank, which is called riverbank protection works.

Common river training works required for meandering rivers are guide bunds, river bank protection, marginal guide bunds Groyne or a Spur, etc.

Groyne or a Spur is constructed at right angles to the riverbank and projected into the river for attracting or deflecting the flow of the river towards or away from the riverbank. 

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Objectives of River Training. The river training works may serve the following objectives or advantages:

(i) To prevent the river from changing its course and to avoid outflanking of structures like bridges, weirs, aqueducts, etc.

(ii) To prevent flooding of the surrounding countries by providing a safe passage for the floodwaters without overtopping the banks.

(iii) To protect the river banks by deflecting the river away from the attacked banks.

(iv) To ensure effective disposal of sediment load.

(v) To provide minimum water depth required for navigation.

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A river training work is generally required when the river is