Best Rock For Drainage Behind Retaining Wall

Every landscape project is different and may require different quantities and sizes of drainage material.

Best rock for drainage behind retaining wall.

There are a number of ways to ensure proper drainage of water from behind a retaining wall. The most common usage is behind retaining walls or sub surface drainage trenches running underneath lawns and gardens. The design of a properly built retaining wall resists the force of the soil behind it and prevents caving buckling or leaning. Typical rock retaining walls also known as dry stack retaining walls are constructed without mortar or reinforcing steel.

After going to all the trouble of building a retaining wall the last thing you need is for it to collapse because of mud and water damage at its base. Use drainage tubing behind the wall. Drainage gravel is essentially used in any location where you need water to run freely and with minimal resistance. With proper retaining wall drainage and construction it can bring a lot of character and function to your landscaping.

How to fill behind a rock retaining wall. For a stacked block retaining wall that s no higher than four feet a trench filled with three inches of crushed rock will help keep the wall from shifting and settling. Gravel is necessary for many landscape projects and not just beautiful rock gardens. Slope the tubing from one end of the wall to the other or from the ends to the middle.

Fabric keeps rock and soil separate. First is to make sure your landscaping contractor backfills at least a foot of space behind the wall with gravel. Proper drainage behind the wall will intercept this problem before it can occur. If it were to get cold enough that water trapped behind the retaining wall will freeze and expand pushing the wall outward.

After a few seasons the wall s integrity will be compromised. Why proper drainage is important for retaining wall performance. The biggest concern that you need to think about is cold weather. A retaining wall is built to hold back a certain amount of soil.

Use fabric behind the wall. The retaining factor is. Retaining walls are a seemingly simple enhancement to any landscaping project. However retaining walls are built with a certain capacity in mind.

Install it in a u shape way behind the wall. Retaining walls and other features that require drainage make great use of large gravel to allow water to drain away faster than soil would. When you re doing a diy landscape project it s important to choose the right type of gravel. However nearly 80 of all residential retaining walls fail at one point or another because of poor drainage.

Fabric keeps soil from leeching out of walls. When drainage goes unaddressed hydrostatic pressure will build up behind the wall and cause damage such as bulging or cracking.