1. Research Leader, USDA Agricultural Research Service Hydraulic Engineering Research Unit, 1301 N. Western Rd., Stillwater, OK 74075 (corresponding author).
2. Agricultural Engineer, USDA Agricultural Research Service Hydraulic Engineering Research Unit, 1301 N. Western Rd., Stillwater, OK 74075.
3. Project Engineer, Schnabel Engineering LLC, 1380 Wilmington Pike Suite 100, West Chester, PA 19382.