Drainage and retaining wall is two things that shouldn’t be separated. Building a retaining wall without a good drainage will be a wasting time and money. You will just make some problems appear by letting your retaining with poor drainage. So, this is important to have good retaining wall drainage so that the function of the retaining wall can be successfully achieved.
Drainage for retaining wall can be added starting from the installation of the wall. you can install the retaining wall with a proper drainage to prevent ay wasting time and money in the future. This is important to start the installation by adding a solid bed of ¾ in gravel to make the moisture underground drains easily. The materials for the wall also affect the retaining wall drainage. You need to choose dry stacking stones to allow the water seep through the crevices in the wall. Another way to provide a proper drainage for your retaining wall is by drilling holes. It is very effective to release water build up from the wall. When drilling holes, you can give space from 2 to 4 feet apart and 6 inches from the bottom. In order to make the water escape from behind the wall; you can attach PVC pipes through the holes. If you feel that the soil behind your retaining wall soft and waterlogged, you can improve the drainage. It can be done by digging out a wide section in one-foot from behind the length of the wall. dig the foundation down and protect the wall with waterproofing fabric to prevent it from rotten and damaged. Fill the back of the wall with a mix of soil and sand of equal part of each to allow the water penetrate through the drain hole easily.
Since there are many ways you can do to add retaining wall drainage, now you can maintain your retaining wall with a better drainage to make it work properly.
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