What feature of barriers is critical when addressing concentrated flow?

The design and configuration of barriers are critical when addressing concentrated flow because they determine not only how effectively the barrier redirects or absorbs water flows but also how it interacts with the landscape. Proper design takes into account the specific flow patterns, soil types, topography, and potential for sediment accumulation. A well-designed barrier may include features such as the angle of the slope, the materials used, and how it integrates with other erosion control measures. This ensures that the barrier can withstand the forces of concentrated flow and prevent erosion effectively, maintaining its functional integrity and longevity.

Other factors like location, material thickness, and height are certainly important; however, they are often secondary to the overall design and configuration in the context of addressing concentrated flow. A barrier could be placed in the perfect location but fail if it is not designed to handle the specific flow dynamics of that area.