Additional results on scour at bridge piers

Based on laboratory tests, still further results on local scour at bridge piers were elaborated. By using the approach of Oliveto and Hager (2002) as a framework, equations providing useful information on the analysis of literature data, theoretical models and field investigations were developed. Local scour at piers founded on piles was also considered. A typical evolution of the scour area is shown in Figure 1. Moreover, Oliveto and Hager’s (2002) scour equation was tested with large-scale experiments by Sheppard et al. (2004) on prototype size piers