1. Project Engineer, Turner Construction Company, 265 Davidson Ave., Suite 255, Somerset, NJ 08873. E-mail: dcoldebella@tcco.com
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Pittsburgh, 949 Benedum Hall, 3700 O’Hara St., Pittsburgh, PA 15260. E-mail: robries@pitt.edu