During the maintenance of an earthen dam, the apparent seepage through – McqOptions

MCQOPTIONS

1.	During the maintenance of an earthen dam, the apparent seepage through the foundation of the dam is best taken care of by providing ______________________
A.	chimney drain
B.	rock toe
C.	drain trench along the downstream toe
D.	upstream impervious cut-off
Answer» D. upstream impervious cut-off

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