Which grading percentage is recommended for athletic complexes?

The recommended grading percentage for athletic complexes is typically 1-2%. This range ensures proper drainage while maintaining a relatively flat playing surface, which is crucial for various sports to function optimally. A slope of 1-2% allows water runoff to occur efficiently, reducing the risk of water pooling on the surface, which could affect playability and safety. This slight incline is sufficient to prevent erosion and promote healthy turf conditions without making the surface feel uneven or difficult for athletes to navigate.

Choosing a grading percentage that is too low, such as 0-1%, may not provide adequate drainage, leading to potential water accumulation and subsequent damage to the playing surface. On the other hand, steeper grades, such as 3-4%, may create uneven surfaces that could hinder athletic performance and increase the risk of injuries. A grading percentage of 5% or more is generally considered excessive for athletic fields, as it may lead to challenging conditions that can impact both playability and athlete safety. Thus, the 1-2% range strikes a balance between drainage and usability, making it the best choice for athletic complexes.