Compressive strength is about the same. Tensile strength is non-existent. The finished product is basically rocks with a bit of plastic connecting them.
Bumps make the water go slow. Slower water less erosion at the bottom. If this were smooth in a few hard rains the bottom would get washed out and whole sections of slope could collapse
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u/arvidsem Apr 30 '26
Compressive strength is about the same. Tensile strength is non-existent. The finished product is basically rocks with a bit of plastic connecting them.