Silt Fence Compaction
Compaction refers to increasing the soil density. The research concluded there is a high correlation between silt fence efficacy and compaction. Installations with adequate compaction resisted washouts, and those with minimal compaction had poor performance. Compaction minimizes water saturating the soil, and thus stabilizes the installation.
If trenching, the soil must be over back-filled and compacted with the wheel of a machine to achieve effective results.