1. Member, ASCE
2. Asst. Prof., Dept. of Civ. and Envir. Engrg., Univ. of Central Florida, Orlando, FL 32816-2450. E-mail: el-tawil@mail.ucf.edu
3. Grad. Res. Asst., Dept. of Civ. and Envir. Engrg., Univ. of Central Florida, Orlando, FL 32816-2450.
4. Visiting Asst. Prof., Dept. of Civ. and Envir. Engrg., Univ. of Central Florida, Orlando, FL 32816-2450.