The only provision among the following which can help control the seepage throug

Question

The only provision among the following which can help control the seepage through the body of an earthen dam and thus to keep the phreatic line well within the dam width is _________________

Options:

A . upstream impervious cut-off

B . drain trench along the downstream toe

C . relief wells

D . chimney drain

Answer: Option D
Answer: (d).chimney drain

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