1. Associate Member, ASCE
2. Member, ASCE
3. Asst. Prof., Dept. of Civ. Engrg., Clemson Univ., Clemson, SC 29634; formerly, Res. Civ. Engr., Nat. Inst. of Standards and Technol., Gaithersburg, MD 20899.
4. Jennie C. and Milton T. Graves Chair, Dept. of Civ. Engrg., Univ. of Texas at Austin, Austin, TX 78712.