The ground is not level at many places in Adelaide. It is not possible to construct a large structure at such places. There is danger of soil erosion. Any structure built on such a ground is at risk of damage. It can even collapse suddenly. A retaining wall is used to hold back the soil. It ensures the area at risk of soil erosion retains its shape for a long time to come. The retaining walls in Adelaide are needed at places where a new construction is planned.
Construction of a retaining wall should be done only by a certified contractor specializing in this field. This type of company has structural engineers who first study the area where the retaining wall is planned. They come up with the right wall construction design. The wall is designed to be safe, durable and economical. It should not only serve its functional purpose; it should also look beautiful. It should be able to withstand the pressure of the soil mound for several years.