Experimental Investigation of Applications of Artificial Roughness for Bridge Pier Scour Reduction

Bridge pier scour occur due to down-flow and flow redirecting after it impinges the pier. Any increase or decrease of the strength of such flow can result in the decrease or increase of the scour depth. The present study showed that roughness can decrease the down flow strength and thereby the scour depth. This result was concluded through laboratory experiments. The results of experiments under different roughness dimensions and flow conditions are also