1. Ph.D. Candidate, Dept. of Civil Engineering, Univ. of Minnesota, St. Anthony Falls Laboratory, Mississippi River at Third Avenue SE, Minneapolis, MN 55414-2196. E-mail: alho0011@umn.edu
2. Associate Professor, Dept. of Civil Engineering, Univ. of Minnesota, St. Anthony Falls Laboratory, Mississippi River at Third Avenue SE, Minneapolis, MN 55414-2196. E-mail: mhondzo@umn.edu
3. Associate Professor, Dept. of Civil Engineering, The Univ. of Minnesota, 122 Civil Engineering Building, 500 Pillsbury Drive S.E., Minneapolis, MN 55455. E-mail: lapar001@umn.edu