1. Russ Professor, Dept. of Civil Engineering, Ohio Univ., Athens, OH 45701.
2. Water Resources Group Manager, E.L. Robinson Engineering of Ohio, 1801 Watermark Dr., Suite 310, Columbus, OH 43215 (corresponding author).
3. Professor and Assistant Chair, Dept. of Civil Engineering, Ohio Univ., Athens, OH 45701.
4. Transportation Engineer, Office of Structural Engineering, Ohio Dept. of Transportation, Columbus, OH 43223.