The design of a properly built retaining wall resists the force of the soil behind it and prevents caving buckling or leaning.
Install french drain behind retaining wall.
Compact the bottom of the hole behind the retaining wall to get it flat.
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.
Pour 1 to 2 inch washed drainage rock into the hole along the base of the wall about 4 to 6 inches deep.
Why proper drainage is important for retaining wall performance.
However retaining walls are built with a certain capacity in mind.
If you re building a retaining wall add a french drain behind the first course of stones or blocks.
This video shows you how to properly install a drainpipe behind your wall for prop.
A retaining wall is built to hold back a certain amount of soil.
A french drain is a trench filled with a perforated pipe and gravel that allows water to drain naturally from your yard.
Learning how to build a retaining wall can be fun with these helpful tips.
Otherwise water moving down the hill will build up behind the wall and undermine it.
Luckily you can avoid these problems by installing a french drain.