1. a BC Hydro , 6911 Southpoint Drive, Burnaby , BC , Canada , V3N 4X8
2. b Department of Civil and Environmental Engineering , University of Alberta , Edmonton , AB , Canada , T6G 2W2 Phone: E-mail:
3. c Department of Civil and Environmental Engineering , University of Alberta , Edmonton , AB , Canada , T6G 2W2 E-mail: