1. Ph.D. Candidate, Dept. of Civil and Geological Engineering, Univ. of Saskatchewan, 57 Campus Dr., Saskatoon, SK, Canada S7N 5A9 (corresponding author).
2. Associate Professor, Dept. of Civil and Geological Engineering, Univ. of Saskatchewan, 57 Campus Dr., Saskatoon, Saskatchewan, Canada S7N 5A9.
3. Professor Emeritus, Dept. of Civil and Geological Engineering, Univ. of Saskatchewan, 57 Campus Dr., Saskatoon, Saskatchewan, Canada S7N 5A9.