Geography · Water Resources

The required minimum depth and length of the upstream floor in a barrage or weir structure is primarily governed by safety against:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Surface flow velocity
2Exit gradient at the downstream end
3Scour depth during high floods✓
4Lacey's silt factor

Correct answer

Scour depth during high floods

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The required minimum depth and length of the upstream floor in a barrage or weir structure is primarily governed by safety against:

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The required minimum depth and length of the upstream floor in a barrage or weir structure is primarily governed by safety against:

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