Scour around bridge piers at high flow velocities.

Abstract

The results of laboratory experiments on scour around circular piers in cohesionless bed material at high flow velocities are presented. A special technique is used to measure scour depths. The scour depth in the sediment transport regime first decreases and then increases with increasing velocity. A formula to predict scour depth for flows with Froude numbers is developed. -from ASCE Publications Abstracts