Question

When the gated sluices are provided through the body of the dam spillway then the ogee spillway structure shall normally be of Corbel type.

(a) True

(b) False

This question was addressed to me in unit test.

My query is from Ogee Profile in section Spillways, Energy Dissipators and Spillway Gates of Irrigation Engineering

Answer 1

The correct choice is (b) False

Best explanation: The extra concrete is required for thickening of the section at the d/s end which can be saved by shifting the curve of the nappe in a backward direction until it becomes tangential to the d/s face. It can be affected by providing a corbel on u/s face.