Otherwise water moving down the hill will build up behind the wall and undermine it.
Install french drain behind retaining wall.
If you re building a retaining wall on a hillside.
If you re building a retaining wall add a french drain behind the first course of stones or blocks.
Compact the bottom of the hole behind the retaining wall to get it flat.
Luckily you can avoid these problems by installing a french drain.
This video shows you how to properly install a drainpipe behind your wall for prop.
However retaining walls are built with a certain capacity in mind.
A french drain is a trench filled with a perforated pipe and gravel that allows water to drain naturally from your yard.
Mar 19 2014 when building a retaining wall lay perforated drainage tubing at the base of the wall slightly above ground level so runoff can drain out without undermining your wall.
Learning how to build a retaining wall can be fun with these helpful tips.
Drainage problems in your yard can lead to pooling mold or water damage in or around your home.
The pipe should rest on the same compacted gravel base or concrete footing that supports the wall.
Why proper drainage is important for retaining wall performance.