1. Assistant Professor, Dept. of Civil Engineering, Okan Univ., Akfirat, Tuzla, Istanbul 34959, Turkey (corresponding author).
2. Associate Professor and Department Head, Dept. of Civil Engineering, Okan Univ., Akfirat, Tuzla, Istanbul 34959, Turkey.
3. Professor and Department Head, Biological and Agricultural Engineering, North Carolina State Univ., Raleigh, NC 27695.
4. Research Hydrologist, USDA-ARS National Sedimentation Laboratory, 598 McElroy Dr., Oxford, MS 38655.