1. Member, ASCE
2. Associate Member, ASCE
3. Grad. Res. Asst., School of Civ. and Envir. Engrg., Georgia Inst. of Technol., Atlanta, GA 30332-0355.
4. Prof., School of Civ. and Envir. Engrg., Georgia Inst. of Technol., Atlanta, GA; corresponding author.
5. Asst. Prof., School of Civ. and Envir. Engrg., Georgia Inst. of Technol., Atlanta, GA.