1. Grad. Res. Asst., Dept. of Civ. and Envir. Engrg., Rutgers Univ., New Brunswick, NJ 08855; formerly, Grad. Res. Asst., Dept. of Civ. and Envir. Engrg., Univ. of South Carolina, Columbia, SC 29208.
2. Assoc. Prof., Dept. of Civ. and Envir. Engrg., Univ. of South Carolina, Columbia, SC 29208.
3. Asst. Prof., Dept. of Civ. and Envir. Engrg., Univ. of South Carolina, Columbia, SC 29208.