Which strategy is used for stabilizing outlets in runoff management?

Rock outlet protection is a highly effective strategy for stabilizing outlets in runoff management. This approach involves the placement of rock or other hard materials at the outlet of a drainage system to dissipate energy from flowing water and prevent erosion, which can occur when water exits pipes or channels at high velocities.

By utilizing rock outlet protection, the turbulence and velocity of the outflow are significantly reduced, allowing for better management of sediment transport and minimizing the potential for downstream erosion. The rocks create a stable structure that can withstand the forces of flowing water, ultimately leading to improved stability of the outlet area.

While other methods like temporary barriers, vegetation cover, and soil compaction play roles in erosion control and runoff management, rock outlet protection specifically addresses the stabilization of outlets by directly counteracting the erosive impacts of concentrated flow.