Which of the following is NOT correct about the application of silt fences?

Silt fences are an important erosion and sediment control tool, designed primarily to intercept sediment from disturbed areas during rainfall events. They are particularly effective in sandy and loamy soils, where sediment tends to be easily transported. However, they are not as effective in certain soil types, especially those that are very silty or clayey, where the risk of clogging or undercutting can increase.

Using silt fences in inappropriate soil types can lead to failure, as the fences may not function as intended, either because the soil does not allow for effective sediment capture or because water pressure behind the silt fence can cause it to collapse. Therefore, stating that silt fences can be used in all soil types is incorrect, as they have specific limitations regarding their effectiveness based on soil characteristics.

The other options correctly reflect the applications and requirements of silt fences. They can work effectively with storm drain diversions, help in reducing sediment transport, and demand regular maintenance to ensure their effectiveness. These maintenance practices include checking for damage, sediment buildup, and ensuring that they are installed correctly to minimize erosion risks. Understanding these nuances is crucial for effective erosion and sediment control practices.