What design consideration is crucial for rock outlet protection?

In the context of rock outlet protection, hydraulic capacity is a crucial design consideration because it ensures that the outlet can effectively handle the flow of water without causing erosion or other forms of damage. Proper design must account for the expected flow rates and velocities, as well as the size and type of rock used in the protection measure. If the hydraulic capacity is not adequate, the energy of the flowing water can lead to the displacement of the rock, undermining the structural integrity of the outlet protection. Therefore, understanding the hydraulic conditions is essential for effectively designing rock outlet protection to manage water flow safely and efficiently. This consideration helps in preventing erosion and maintaining the stability of surrounding areas.