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Old 10-21-2011, 07:16 AM   #1
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drainage behind the retaining walls

objectives and methods of drainage and ground water control??


Kathleen Puyang is offline   Reply With Quote
Old 10-21-2011, 07:29 AM   #2
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Originally Posted by Kathleen Puyang View Post
objectives and methods of drainage and ground water control??
This is a post from a previous thread.

Are you putting drainage behind the wall? Generally you would dig out behind the wall about 12-18" and install landscape fabric against the soil. Then put a drainage pipe at the base of the wall to carry the water away to a lower area. The pipe would have a sock over it to keep dirt out.
The dug out area would be filled with gravel about 12" from the top. The landscape cloth would be folded over the top and the remaining space filled with soil.
You can also check out You Tube for retaining wall drainage. They have a few good videos.


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