1. Assistant Professor, Clemson Univ., 208 Lowry Hall, Clemson, SC 29634 (corresponding author).
2. Associate Professor, Dept. of Civil, Construction, and Environmental Engineering, Univ. of Alabama, P.O. Box 870205, Tuscaloosa, AL 35487-0205.
3. Assistant Vice President for Planning, Design, and Construction, Univ. of Alabama, P.O. Box 870142, Tuscaloosa, AL 35487.
4. Deputy Associate Vice President of the Office of Physical Plant, The Pennsylvania State Univ., 200A Physical Plant Building, University Park, PA 16802.