Support where you need it.
Retaining walls are often found in places where extra support is needed to prevent the earth from moving downhill with erosion. The most basic function of a retaining wall is to battle gravity; the lateral force of the slope must be offset in the retaining wall’s design.
Retaining walls function to divert water away from the foundation of your home to control erosion, runoff, and silt accumulation. A retaining wall is used for supporting soil mass laterally so the soil can be retained at different levels on two sides