Prediction of Bridge Pier Scour Depth and Field Scour Depth Monitoring Fong-Zuo Lee, Jihn-Sung Lai, Yuan-Bin Lin, Kuo-Chun Chang, Xiaoqin Liu and Cheng-Chia Huang E3S Web Conf., 40 (2018) 03007 Published online: 05 September 2018 DOI: 10.1051/e3sconf/20184003007