Which method is most effective in controlling sediment runoff in construction?

Using sediment traps and basins is the most effective method in controlling sediment runoff during construction activities. This technique specifically targets the management of sediment by capturing and retaining it before it can be discharged into surrounding areas, such as waterways or storm drains. Sediment traps are designed to slow down water movement, allowing sediment to settle out of the water column, while sediment basins can hold a larger volume of water, providing additional time for sediments to settle. This dual action minimizes the amount of sediment transported offsite, thereby significantly reducing the adverse environmental impacts associated with sedimentation.

In contrast, complete site clearance could actually exacerbate erosion and sediment loss by stripping the area of all vegetation and soil structure, leading to increased vulnerability to runoff. Installing only concrete barriers may provide some physical barriers to sediment movement, but they do not effectively manage water quality or sediment capture as sediment traps and basins do. Ignoring runoff completely is ineffective and negligent, as it fails to address the sedimentation issues that construction sites inevitably generate. Therefore, the use of sediment traps and basins represents a proactive approach in managing and mitigating sediment runoff effectively.