1. Professor, Dept. of Civil Engineering, Tennessee Technological Univ., Box 5015, Cookeville, TN 38505.
2. Field Engineer, Stanley D. Lindsey & Associates, Ltd., 1801 W. End, Suite 400, Nashville, TN 37203.
3. Graduate Research Assistant, Tennessee Technological Univ., Box 5015, Cookeville, TN 38505.