How to Build a Retaining Wall
Mon, 25 Jul 2011
Retaining walls for gardens and driveways.
Low garden edging can usually be installed without council approval. However walls over 1m will generally need to be designed and certified by a suitable qualified engineer. Walls in locations close to building or driveways, in places where significant ground water or storm water build up can be expected, in steep or unstable terrain, or where there is reactive clay or fine sandy soils, may need special attention. If in doubt please contact your local council.
We have recently installed a retaining wall in our 17 Mile Rocks yard and here are some photos of the progress!
Hints and tips learned by us!
Most importantly is make sure your base is level! Do this by using a string line and a spirit level. If your base is not level you will find the blocks will not fit together.
You can either core fill the blocks (for extra strength) with cement or gravel as we have here in the photo above.
Build the blocks up, core filling as you go, following the pattern seen above, and finish off with a cap.
Back fill behind the wall with gravel or soil...however if you are concerned with water using a socked agriculture pipe to assist with water run off before you back fill is a great idea!
Please download the guide by clicking on the link below!
ARMP#1077