1. Professor, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana–Champaign, 2230C Newmark Civil Engineering Bldg., 205N. Mathews, Urbana, IL 61801.
2. Associate Professor, Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Colorado Boulder, 1111 Engineering Dr., 428 UCB, Boulder, CO 80309 (corresponding author).
3. Graduate Student Researcher, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana–Champaign, 2230C Newmark Civil Engineering Bldg., 205N. Mathews, Urbana, IL 61801.
4. Science and Engineering Instructor, Boulder Prep High School, 5075 Chaparral Court, Boulder, CO 80301.
5. Associate Geotechnical Engineer, ARUP San Francisco, 560 Mission St. #700, San Francisco, CA 94105.
6. Senior Geotechnical Engineer, ARUP San Francisco, 560 Mission St. #700, San Francisco, CA 94105.