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Best Management Practices: Sediment Barrier [Sd1] A sediment barrier can be any number of temporary structures designed to prevent sediment carried by sheet flow from leaving a site. Sediment barriers slow storm water runoff and cause sediment to be deposited at the structure. Silt fence is the most common sediment barrier. Types of silt fence vary based on the area being protected, the desired flow rate, and the length of the project. For more critical areas, wire reinforcement and steel posts are used. Straw bales, sand bags, brush piles, and waddles are also used as sediment barriers. When the barrier contains sediment equal to one-half its original height, it should be cleaned out. Sediment barriers should be removed when the site achieves final stabilization. Sediment barriers are NOT designed for areas of concentrated flow such as streams, ditches, and waterways. |
 
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