Maximum runoff velocity (feet per second) for a berm based on soil type
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Soil Type Permissible Velocity (fps)
Channel Vegetation
Bare Poor Fair Good
Sand, silt, sandy loam, and silty, loam 1.5 1.5 2.0 3.0
Sandy clay, lam, and sandy clay, loam 2.0 2.5 3.0 4.0
Clay 2.5 3.0 4.0 5.0