Baffle boards in a sediment trap serve which purpose?

Baffle boards in a sediment trap are specifically designed to create the required effective flow length. This is crucial because longer flow paths allow sediment-laden water to have more time to slow down and settle out particulate matter before the water exits the trap. The design and placement of baffles help to redirect the flow, which improves sedimentation efficiency by reducing the velocity of the water and increasing retention time.

This function is essential for the performance of a sediment trap, ensuring that suspended particles are captured effectively and helping to maintain water quality. Other aspects, such as increasing storage volume or preventing clogging, may be important for the overall operation of sediment control structures, but the primary role of baffle boards specifically relates to managing the flow characteristics within the sediment trap.