1. Research Associate, Dept. of Geological Engineering, Univ. of Wisconsin–Madison, Madison, WI 53706 (corresponding author).
2. Wisconsin Distinguished Professor, Director of Sustainability Research & Education, and Chair, Civil & Environmental Engineering, Dept. of Geological Engineering, Univ. of Wisconsin–Madison, Madison, WI 53706.
3. Professor, Dept. of Geological Engineering, Univ. of Wisconsin–Madison, Madison, WI 53706.