1. Design Engineer, Modjeski and Masters, Inc., 1055 St. Charles Ave., Ste. 400, New Orleans, LA 70130.
2. Assistant Professor, Penn State Univ., Dept. of Civil and Environmental Engineering, 212 Sackett Building, University Park, PA 17059.
3. Assistant Professor, Univ. of South Carolina, Dept. of Civil and Environmental Engineering, 300 Main Street, Columbia, SC 29208. (corresponding author).