In site grading, what should be avoided to prevent excessive erosion and runoff?

In site grading, avoiding vegetation removal is crucial for preventing excessive erosion and runoff. Vegetation plays a vital role in stabilizing the soil. The roots of plants help bind the soil together, which reduces the likelihood of erosion when rainfall occurs. Additionally, the foliage helps to intercept rainfall, slowing down its impact on the ground and allowing more water to soak into the soil rather than running off into nearby areas.

On the other hand, maintaining natural drainage patterns is essential for effective water management, while creating ponding areas can serve as a method to manage runoff and sediment. Installing retaining walls can also be beneficial for stabilizing slopes and controlling erosion. However, these methods do not mitigate the immediate risks associated with the removal of vegetation, which is a fundamental aspect of maintaining a healthy and stable site.