Slide (54 of 125)
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The berm shown here looks very good, but is actually worthless. Remember that when the tire hits this soft material it penetrates. Then the tire starts compacting the material until it can hold the weight that its being subjected to. When the material holds the weight, the tire starts climbing. This berm is built of soft material. The material was "downsloped" (pushed off the edge of the road). It is not resting on a solid base.
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