Computer · Dams and Reservoirs
The primary provision of a filter and rock-toe in an earthen dam is done to:
- 1Prevent piping action and internal erosion within the dam section✓
- 2Completely stop the entry of seepage water into the reservoir
- 3Increase the overtopping capacity of the spillway
- 4Reduce the total weight of the dam structure
Correct answer
Prevent piping action and internal erosion within the dam section
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