1. Testing and Analysis Structural Engineer, Bridge Diagnostics, Inc., 1995 57th Court North, Ste. 100, Boulder, CO 80301; formerly, Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Tufts Univ., Medford, MA 02155.
2. Professor, Dept. of Civil and Environmental Engineering, Tufts Univ., Medford, MA 02155 (corresponding author).