1. Associate Member, ASCE
2. Res. Sci., Oak Ridge Nat. Lab., PO Box 2008, MS 6237, Oak Ridge, TN 37831-6237 (corresponding author). E-mail: bhaduribl@ornl.gov
3. Grad. Student, Dept. of Earth and Atmospheric Sci., Purdue Univ., West Lafayette, IN 47907-1397.
4. Proj. Engr., FMSM Engineers, 6600 Busch Blvd., Ste. 100, Columbus, OH 43229.
5. Assoc. Prof., Dept. of Earth and Atmospheric Sci., Purdue Univ., West Lafayette, IN. E-mail: jharbor@purdue.edu