1. Associate Professor of Civil Engineering, Dept. of Civil and Environmental Engineering, Pennsylvania State Univ., 212 Sackett, Blvd., University Park, PA 16802.
2. Student, Dept. of Civil and Environmental Engineering, Pennsylvania State Univ., University Park, PA 16802.
3. Project Engineer, Camp, Dresser, and McKee, 3050 Post Oak Blvd., Ste. 300, Houston, TX 77056.