What type of wall has a footer extending from the base back into the fill?

A cantilever wall is designed with a footer that extends from the base and back into the fill, which allows it to leverage the weight of the fill behind it to resist lateral earth pressures. This design is effective in providing stability and support, as the weight creates a counteracting force against the soil pressure acting on the wall. The cantilever structure utilizes the principles of leverage, where a portion of the wall extends downward and backward, effectively anchoring it into the fill and preventing it from toppling over.

In many instances, cantilever walls are made from reinforced concrete, which enhances their ability to withstand significant loads and resist bending or breaking under pressure. This design makes them a common choice for retaining structures, especially in situations where the wall needs to handle considerable earth loads without additional support systems.