Real Info About How To Build Retaining Wall Drainage
Site conditions are your key determinant.
How to build retaining wall drainage. Weep holes allow water to escape from behind. If your retaining wall needs a drainage pipe, make sure the pipe has slots on all sides, not just one. Size the trench so there’s enough room for the block and at least 8 inches of space behind it.
Check out this video for some simple instructions on installing a french drain behind an 18” to 24” tall retaining wall before it is backfilled with dirt. Drainage systems for retaining walls. There are several ways to prevent water from building up behind a retaining wall.
When the soil behind a retaining wall gets wet, it exerts much more pressure and weight against the wall. Weep holes should be drilled through the wall. Dig out a trench that is a minimum of 6″ (155 mm) deep plus 1″ for every foot of wall height.
Drains can also be placed through the face of the wall (see retaining wall cross sections at unilock.com for additional information). The trench you are going to build your retaining wall in should be wide, deep, and level. When we build a retaining wall we don't only hold back the soil w.
When building a retaining wall, it is important to make sure that the sleepers are secure. 1000+ reviews & over 250k homes repaired. Drainage behind a retaining wall requires both proper backfill and drainage pipe.
All retaining walls should include drainage stone even if a draining pipe is not required. To relieve some of this pressure, your retaining wall needs proper drainage. Tips for adding drainage to your retaining wall consider your conditions.