1. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of South Florida, 4202 E. Fowler Ave., ENB 118, Tampa, FL 33620 (corresponding author).
2. Research Associate, Dept. of Civil and Environmental Engineering, Univ. of South Florida, 4202 E. Fowler Ave., ENB 118, Tampa, FL 33620.
3. Principal, Dan Brown & Associates, 300 Woodland Rd., Sequatchie, TN 37374.