What is one physical method used for erosion control?

In the context of erosion control, silt fences are a widely recognized physical method designed to capture sediment and reduce erosion caused by stormwater runoff. These fences are typically made of a geotextile fabric that allows water to pass through while trapping sediment-laden water, effectively preventing soil and other particulates from being washed away into nearby waterways.

Silt fences are particularly effective in construction site settings or areas where soil disturbance has occurred, as they help to create a barrier that slows down water flow and promotes sedimentation. This helps maintain soil integrity and protect the surrounding environment from sediment pollution.

While other options like retention ponds, sandbags, and geotextiles play a role in erosion control, silt fences specifically serve the purpose of filtering out sediments from water runoff, making them a key tool in erosion prevention strategies.