1. Graduate Research Assistant, Dept. of Civil, Construction, and Environmental Engineering, Univ. of Alabama, 251 H.M. Comer, Tuscaloosa, AL 35487.
2. Assistant Professor, Dept. of Civil, Construction, and Environmental Engineering, Univ. of Alabama, 251 H.M. Comer, Tuscaloosa, AL 35487.
3. Associate Professor, Dept. of Civil, Environmental, and Architectural Engineering, Univ. of Colorado at Boulder, 1111 Engineering Dr., Boulder, CO 80309-0428.