What is the primary purpose of a diversion in stormwater management?

The primary purpose of a diversion in stormwater management is to direct stormwater to a stabilized area. This is crucial for managing stormwater runoff effectively. By channeling water to specific areas that have been designed or modified to handle increased flow, diversions help prevent erosion, reduce sediment transport, and minimize flooding. Stabilized areas, such as vegetated swales or retention basins, can absorb and filter stormwater, improving water quality before it enters larger bodies of water.

The function of a diversion in this context ensures that stormwater does not run unchecked over surfaces that might be prone to erosion or could lead to the carrying away of pollutants. By guiding water to a safer and more controlled environment, diversions play a vital role in sustainable stormwater management practices.