1. Associate Professor, Dept. of Civil & Environmental Engineering, Manhattan College, Riverdale, NY 10471; formerly, HDR, One Blue Hill Plaza, Pearl River, NY 10965; and, HDR, One Blue Hill Plaza, Pearl River, NY 10965 (corresponding author).
2. HDR, One Blue Hill Plaza, Pearl River, NY 10965.
3. Administrator, Aquatic Program, New York Power Authority, 123 Main St., White Plains, NY 10601.