Erosion and Sediment Control Tip #96

 

Many E&SC practices like a silt fence are to be placed mostly on a contour to pond water and allow coarse particles time to settle and be captured.  So, my question is “What do you call a silt fence that is NOT on the contour?”  The answer is “A Diversion”.  This runoff water funnels down the edge of the silt fence often washes out the backfill and results in undermining of the silt fence.

 

Perry L Oakes, PE

Alabama’s Erosion and Sediment Control Program Manager

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