What is the primary purpose of implementing silt fences on a construction site?

The primary purpose of implementing silt fences on a construction site is to control sediment runoff and prevent erosion. Silt fences are specially designed barriers made from permeable fabric that allow water to pass through while capturing sediment particles. When it rains or when construction activities disturb the soil, the potential for soil erosion and sediment transport increases significantly. By effectively filtering stormwater runoff, silt fences help maintain water quality in nearby bodies of water and protect the local environment from pollutants.

The use of silt fences is especially important in areas with loose, unstable soils, as they can significantly reduce the amount of sediment that otherwise would wash away during rain events. This practice is essential for compliance with environmental regulations and helps promote sustainable construction practices by minimizing the impact of earthwork activities on surrounding landscapes.