1. Member, ASCE
2. Grad. Res. Asst., Dept. of Civ. Engrg., Univ. of Mississippi, 208 Carrier Hall, University, MS 38677. E-mail: dgwren@olemiss.edu
3. Asst. Prof., Dept. of Civ. Engrg., Univ. of Mississippi, 208 Carrier Hall, University, MS. E-mail: cvbark@olemiss.edu
4. Res. Hydr. Engr., U.S. Dept. of Agr.-Agricultural Res. Service Nat. Sedimentation Lab., P.O. Box 1157, 598 McElroy Dr., Oxford, MS 38655. E-mail: kuhnle@sedlab.olemiss.edu