§ 10.4.2. Velocity Protection Devices

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The velocity protection device used in an earthen channel should not take the place of a velocity control device but may complement a velocity control device.
There are a number of products available to the design engineer to stabilize an earthen channel, including soil retention blankets, articulated concrete blocks, and revetment mattresses. The use of these stabilizing products should be based on the velocity from the culvert outlet structure and the soil erodibility.

                    
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