Affiliation: | 1Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Utah State Univ., 4110 Old Main Hill, Logan, UT 84332-4110. 2Associate Professor, Dept. of Civil and Environmental Engineering, Utah State Univ., 4110 Old Main Hill, Logan, UT 84332-4110 (corresponding author). E-mail: Paul.Barr@usu.edu 3Associate Professor, Dept. of Civil and Environmental Engineering, Utah State Univ., 4110 Old Main Hill, Logan, UT 84332-4110. E-mail: Marv.Halling@usu.edu
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