Institution: | Illinois State Geological Survey, 615 E. Peabody Dr., Champaign, IL 61820. E-mail: (first author).;Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 N. Mathews, Urbana, IL 61801.;Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 1206 W. Green St., Urbana, IL 61801. |