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Old 09-18-2012, 11:42 PM
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andersman02 andersman02 is offline
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Rain garden in front of a retaining wall for drainage

A customer has a back yard where all of the drainage from the house and retaining walls drain to one spot...needless to say it gets very flooded in this spot for days sometimes weeks. She had someone install a pretty heavy duty french drain but it doesn't seem to fix the problem.

Would a raingarden in front of the lowest retaining wall (where it ponds) impact the strength of the wall? All, and im talking about 4 pipes, of the drainage leads here. Maybe place the raingarden a few feet in front of the wall?

She doesnt want to screw with the drainage already in place either.

any ideas

btw the bottom wall is about 4' tall
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Old 09-19-2012, 07:20 AM
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Quote:
Originally Posted by andersman02 View Post
A customer has a back yard where all of the drainage from the house and retaining walls drain to one spot...needless to say it gets very flooded in this spot for days sometimes weeks. She had someone install a pretty heavy duty french drain but it doesn't seem to fix the problem.

Would a raingarden in front of the lowest retaining wall (where it ponds) impact the strength of the wall? All, and im talking about 4 pipes, of the drainage leads here. Maybe place the raingarden a few feet in front of the wall?

She doesnt want to screw with the drainage already in place either.

any ideas

btw the bottom wall is about 4' tall
Water is a walls enemy
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Old 09-19-2012, 07:23 AM
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AztlanLC AztlanLC is offline
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http://www.lawnsite.com/showthread.php?t=387132

Is it the same? My suggestion when someone is trying to help do not disapper from tread and in the future you most likely get some help
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Old 09-22-2012, 10:29 AM
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White Gardens White Gardens is offline
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I would extend those pipes as far as you can if it were me.

That and if there is no-daylight area to exit to, I'd install a couple of NDS catch basins to drain the water to and possibly get the water to drain into the sub-soil better.



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