1. Geotechnical Project Engineer, FYRA Engineering, 12702 Westport Pkwy., Suite 300, Omaha, NE 68138.
2. Professor and Chair, Dept. of Civil Engineering, Auburn Univ., 238 Harbert Engineering Center, Auburn, AL 36849-337.
3. Associate Professor, Dept. of Civil Engineering, Univ. of Nebraska-Lincoln, 362Q Whittier Research Center, Lincoln, NE 68583-0851.