1. RockSol Consulting Group, 6510 West 91st Avenue, Suite 130, Westminster, CO 80031; formerly, Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Colorado State Univ., 1372 Campus Delivery, Fort Collins, CO 80523-1372.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Colorado State Univ., 1372 Campus Delivery, Fort Collins, CO 80523-1372 (corresponding author).
3. Associate Professor, Dept. of Civil Engineering, Univ. of Colorado at Denver, 1200 Larimer Street, Denver, CO 80217.
4. Associate Professor, Dept. of Construction Management, Colorado State Univ., 1584 Campus Delivery, Fort Collins, CO 80523-1584.