Irrigation Engineering
The main function of a divide wall is to

provide smooth flow at sufficiently low velocity
prevent river floods from entering the canal
separate the undersluices from weir proper
control the silt entry in the canal

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Irrigation Engineering
Lane's weighted creep theory assumes

Equal weightage to horizontal and vertical creeps
Triple weightage to vertical creep and one weightage to horizontal creep
Triple weightage to horizontal creep and one weightage to vertical creep
Double weightage to horizontal creep and one weightage to vertical creep

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Irrigation Engineering
If A is the area of the surface, x̅ is the depth of its C.G. from the surface of the water and ω is the density of water, then

Total pressure on the surface is equal to ωx̅
Depth of the point at which total pressure acts is equal to its moment of inertia divided by Ax̅
Depth of the centre of pressure is 2/3H vertically below the surface
All listed here

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