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The width provided at the site for the river to flow and also the length of the weir is ____________

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in Irrigation Engineering by (75.2k points)
The width provided at the site for the river to flow and also the length of the weir is ____________

(a) waterway

(b) launching apron

(c) top width

(d) bed mean width

I had been asked this question in final exam.

Asked question is from Seepage Theories topic in division Seepage Theories and Weirs and Barrages Design of Irrigation Engineering

1 Answer

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by (106k points)
The correct choice is (a) waterway

For explanation: Waterway is provided between the abutments of a weir for river water to flow. It is also the length of the weir and may be calculated from Lacey’s regime perimeter formula. The weir length is generally increased to avoid the risk of overtopping of the training works.

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