SSC JE Civil Engineering 29-Oct-2020 Shift 1 Paper

Ogee Fall:
● In this type of fall, an ogee curve (a combination of convex curve and concave curve) is provided for carrying the canal water from higher level to lower level.
● This fall is recommended when the natural ground surface suddenly changes to a steeper slope along the alignment of the canal.
● There is a heavy drawdown on the u/s side resulting in lower depth, higher velocities and consequent bed erosion.
● Kinetic energy is not well dissipated due to smooth transition.