Why Silt Fence Is Essential for Erosion Control Silt fence is one of the most widely used tools in erosion control—and for good reason. When properly installed, it acts as a barrier that: Slows water flow Captures sediment Prevents offsite runoff It’s often the first line of defense in any erosion control plan . How Silt Fence Supports Erosion Control Silt fence is designed to intercept sediment-laden runoff before it leaves the jobsite. In effective erosion control systems,