Installing drain lines at existing walls requires labor and equipment to remove the retained soil so the line can be correctly placed.
Timber retaining wall drainage pipe.
Do choose a material you can easily work with.
Not adding drainage pipes.
Most retaining walls require drainage and are built with a perforated pipe set behind the wall in a gravel base.
These will allow water to drain out of the earth and prevent your soil from getting waterlogged and excessively heavy.
When you are installing the landscaped earth which the retaining wall is designed to hold up you should fit in some pvc pipes.
Because the grade of this yard has a slight slope that will promote water runoff we can skip this step on this project but we will add gravel for drainage and back fill with dirt.
Some of these drains are vented through the front of the retaining wall while others may run the length of the wall and drain out to the sides.
Pipe drains also known as toe drains are perforated pipes that collect water along the length of the wall and drain it to the outside.
Depending on its purpose a retaining wall can be very short or very tall.
Retaining walls can be constructed using a variety of materials from poured concrete and large timbers to natural stones even bricks.
Regardless of the reason why a retaining wall is used it is typically constructed of a material such as brick concrete stone or wood timbers.
With proper retaining wall drainage and construction it can bring a lot of character and function to your landscaping.
Cut holes into the wall to let water out.
Ways to achieve good drainage include using at least 300mm of a granular material such as gravel in the backfill the material directly behind the wall.
Use drainage tubing behind the wall slope the tubing from one end of the wall to the other or from the ends to the middle.
These are called weeping holes.
Installing drains in an existing concrete block or wooden.
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.