1. State Geotechnical Engineer, Washington State Dept. of Transportation, Olympia, WA 98504-7365.
2. Professor, GeoEngineering Centre at Queen’s-RMC, Civil Engineering Dept., Royal Military College of Canada, Kingston, Ontario, Canada K7K 7B4 (corresponding author), E-mail: bathurst-r@rmc.ca
3. Professor, Dept. of Civil Engineering, Univ. of Washington, More Hall: FX 10, Box 352700, Seattle, WA 98195-2700.
4. PhD, Geotechnical Associate Researcher, R&D Section, Taiwan Construction Research Institute, Hsin Tien City, Taiwan.
5. PhD Candidate, GeoEngineering Centre at Queen’s-RMC, Dept. of Civil Engineering, Queen’s Univ., Kingston, Ontario, Canada K7L 3N6.