1. Associate Member, ASCE
2. PhD Candidate, Dept. of Civ. and Envir. Engrg., Univ. of Wisconsin-Madison, Madison, WI 53706. E-mail: taelee@students.wisc.edu
3. Prof., Dept. of Civ. and Envir. Engrg., Univ. of Wisconsin-Madison, Madison, WI. E-mail: chbenson@facstaff.wisc.edu