1. Dept. of Civil and Environmental Engineering, Univ. of Alberta, 9211 116 St. NW, Edmonton, AB, Canada T6G 1H9; Senior Project Manager, CCI Inc., 17816 118 Ave. NW, Edmonton, AB, Canada T5S 1L6.
2. Professor, Dept. of Civil and Environmental Engineering, Univ. of Alberta, 9211 116 St. NW, Edmonton, AB, Canada T6G 1H9 (corresponding author).