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Rosgen Classification

Rosgen Classification

Rosgen Classification

(OP)
I noticed that there is a Rosgen Stream classification for a Silt/Clay (A6a+) and a Sand (A5a+) for streams with slopes greater than 10%. Is this possible? And if so, how does it occur? Can it occur naturally? I would think that naturally anything with a slope larger than 10% would have enough torsion and shear stress to remove the small sediment until it was at a lower slope.

I am very curious to see how this could work.

RE: Rosgen Classification

A stable channel is not necessarily one with no sediment load.

A stable channel is a channel where every particle of bed material carried downstream is replaced in the bed by a particle dropped from upstream.

Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com

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