Sheetflow Construction Erosion and Sediment Control

May 17, 2016

Inspecting-Check Dams Need Low Center Point

Filed under: Video — Sheetflow @ 2:48 am

Check dams need to be installed so that the center point of the dam is at least 6 to 8 inches lower than the outside edge; 12 inches in areas where intense rainfall occurs. If the center point is higher than the outer edges, water will run around the dam and erode the side slopes of the ditch, causing erosion. If the ditch is shallow and you are using triangular silt dikes, you might need to add sand bags to create a center point that is low.

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