1. Assistant Professor, Dept. of Civil Engineering, Univ. of Nebraska-Lincoln, Lincoln, NE 68588 (corresponding author).
2. Associate Professor, Engineering Professional Development and Geological Engineering, Univ. of Wisconsin-Madison, Madison, WI 53706.
3. Dean, School of Engineering and Applied Science and Hamilton Endowed Chair in Engineering, Univ. of Virginia, Charlottesville, VA 22904.
4. Professor Emeritus, Dept. of Civil and Environmental and Geological Engineering, Univ. of Wisconsin-Madison, Madison, WI 53706.