Diversion channels and berms are an erosion control method used to direct runoff to a specific location. Which option best reflects this concept?

Diversion channels and berms are an erosion control method used to direct runoff to a specific location. Which option best reflects this concept?

• A. An erosion control method for directing runoff to a specific location.
• B. A method for increasing infiltration by soil amendment.
• C. A technique for slowing water flow through vegetation.
• D. A device that filters sediment from the air.

Answer: (B)

Diverting runoff to a specific location is about controlling where water goes to minimize erosion and sediment transport. Diversion channels and berms achieve that by creating a planned flow path: a diversion channel carries runoff away from disturbed soils toward a safe outlet or sediment basin, while a berm acts as a barrier that directs the flow along a designated route. The aim is to keep runoff out of sensitive areas and to deliver it to a place where it can be captured or treated. This is best described as an erosion control method for directing runoff to a specific location. The other options describe unrelated goals—infiltration through soil amendments, slowing flow with vegetation, or filtering sediment from the air—which do not capture the function of directing water.

Diverting runoff to a specific location is about controlling where water goes to minimize erosion and sediment transport. Diversion channels and berms achieve that by creating a planned flow path: a diversion channel carries runoff away from disturbed soils toward a safe outlet or sediment basin, while a berm acts as a barrier that directs the flow along a designated route. The aim is to keep runoff out of sensitive areas and to deliver it to a place where it can be captured or treated. This is best described as an erosion control method for directing runoff to a specific location. The other options describe unrelated goals—infiltration through soil amendments, slowing flow with vegetation, or filtering sediment from the air—which do not capture the function of directing water.