1. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Illinois–Urbana, 205 N. Mathews Ave., Urbana, IL 61801 (corresponding author). E-mail: dawsey@uiuc.edu
2. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Illinois–Urbana, 205 N. Mathews Ave., Urbana, IL 61801. E-mail: minsker@uiuc.edu
3. General Engineer, U.S. Army Corps of Engineers, U.S. Army Engineer Research and Development Center, Construction Engineering Research Laboratory (ERDC-CERL), P.O. Box 9005, Champaign, IL 61826-9005. E-mail: vicki.l.vanblaricum@erdc.usace.army.mil