Which of the following spillways is least suitable for an earthen dam ?
A. ogee spillway
B. chute spillway
C. side channel spillway
D. shaft spillway
Answer: Option A
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Ogee spilway used in concrete dam not earthen dam .chute spilwy used in earthen dam
why not trough spillway
Over spillway is widely used with concrete, masonry ,arch and buttress dams