Seawall drsinage

BOWTECH.JUSTICE

Petty Officer 2nd Class
Joined
Aug 26, 2012
Messages
170
Not sure which page to put this but here it goes.
Im doing some repairs on my steel seawall in Michigan. I have dug out to put gravel behind the wall to help with drainage. Do I need to put drain tile in? If water lecel rises, it wont do any good and if I raise the tile, it becomes above the frost line.
 
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