Retaining Walls
Sloping sites can benefit from the construction of retaining walls to provide more level areas for planting and other uses; walls are one of the most popular and useful hardscape additions to the landscape.
It's extremely important to understand the possibly catastrophic consequences of poor design or construction; the significant physical forces involved in holding back large quantities of soil require very thorough engineering and careful construction.
Interlocking concrete block is one of the best materials for a retaining wall. Construction using other types of materials such as stone, timbers and railroad ties, can also be done.