Anyone with a strong back can stack up a bunch of blocks and build a pretty retaining wall. But it takes skill and planning ...

One way to control erosion is to build a retaining wall at the foot ... like concrete blocks. These blocks interlock, are ...

Gravity retaining walls are thicker at their base than at the top. By design, the weight of interlocking building materials such as bricks or concrete blocks is greater than the force of the earth ...