![]() Such walls are constructed with enormous footings, sometimes extending down to bedrock. The larger terraces may require extreme erosion control measures on the cut slope and a substantial retaining wall must be specially engineered to hold the fill. To preserve the slope, take up the grade with a series of shorter terraces rather than one or two very large ones graded with cut and fill. This is why the planting on so many cut slopes and home pads on exposed subsoil are prone to failure. Cutting into a slope removes topsoil to expose subsoils, often heavy clays or shale that are poorly drained or lack microbial action of a living topsoil. Take up slope as gradually as possible.Īny time you cut into a slope you compromise its integrity, therefore the less you do so the better.
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