1. Hydraulics and Hydrology Engineer, Bechtel Corporation, 3300 Post Oak Blvd., Houston, TX 77056; formerly, Graduate Student, Dept. of Civil Engineering, Auburn Univ., 238 Harbert Engineering Center, Auburn, AL 36849.
2. Assistant Professor, Dept. of Civil Engineering, Auburn Univ., 238 Harbert Engineering Center, Auburn, AL 36849 (corresponding author).