1. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of New Hampshire, W173 Kingsbury Hall, 33 Academic Way, Durham, NH 03824 (corresponding author).
2. Graduate Research Assistant, Dept. of Civil Engineering, Univ. of Minnesota Duluth, 221 Swenson Civil Engineering, 1405 University Dr., Duluth, MN 55812.
3. Research Engineer, Dept. of Civil Engineering, Univ. of Minnesota Duluth, 221 Swenson Civil Engineering, 1405 University Dr., Duluth, MN 55812.