It isn't using the wrong materials or employing improper construction techniques — it's failing to install an adequate drainage system. A retaining wall has to resist immense pressure from the ...

This natural drainage system reduces the risk of water pressure buildup, which is one of the main causes of retaining wall failure. While dry-stacking may take a little longer to achieve the ...

With more detailed design work in progress, several factors need to be addressed at this stage: Co-ordination with other site elements – the retaining wall must integrate with adjacent structures, ...