1. Associate Dean, Research, Graduate Programs, and Partnerships, and Professor, Dept. of Civil and Environmental Engineering, California Polytechnic State Univ., San Luis Obispo, CA 93407.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, California Polytechnic State Univ., San Luis Obispo, CA 93407 (corresponding author).
3. Bridge Engineer, Arup Inc., 560 Mission St., San Francisco, CA 94105; formerly, Graduate Research Assistant, Dept. of Civil and Environmental Engineering, California Polytechnic State Univ., San Luis Obispo, CA 93407.
4. Bridge Engineer, Alta Vista Solutions, 3260 Blume Dr., Richmond, CA 94806; formerly, Graduate Research Assistant, Dept. of Civil and Environmental Engineering, California Polytechnic State Univ., San Luis Obispo, CA 93407.