1. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Idaho, 875 Perimeter Dr. MS 0901, Moscow, ID 83844-0901.
2. Professor, Dept. of Civil and Environmental Engineering, Univ. of Idaho, 875 Perimeter Dr. MS 0901, Moscow, ID 83844-0901.
3. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Idaho, 875 Perimeter Dr. MS 1022, Moscow, ID 83844-0901.
4. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Idaho, 875 Perimeter Dr. MS 1022, Moscow, ID 83844-0901 (corresponding author).