1. Staff Engineer, CH2M HILL, 1100 112th Ave. NE, Suite 400, Bellevue, WA 98004. E-mail: vphan@ch2m.com
2. Professor, Dept. of Civil and Environmental Engineering, Mail Stop 258, Univ. of Nevada at Reno, Reno, NV 89557. E-mail: saiidi@unr.edu
3. Professor, Dept. of Geological Sciences and Engineering, Mail Stop 174, Univ. of Nevada at Reno, Reno NV 89557. E-mail: jga@unr.edu
4. Research Engineer, Federal Highway Administration, Office of Infrastructure R&D, 6300 Georgetown Pike, McLean, VA 22101. E-mail: hamid.ghasemi@fhwa.dot.gov