1. Water Resources Engineer, CH2M Hill, 2020 SW 4th Ave., 3rd Floor, Portland, OR 97201-4958.
2. Associate Professor, Dept. of Civil and Environmental Engineering, Colorado State Univ., Campus Delivery 1372, Fort Collins, CO 80523-1372 (corresponding author).
3. Hydraulic Engineer, Sediment and River Hydraulics Group, Bureau of Reclamation, Denver Federal Center, Bldg. 67, Denver, CO 80225.
4. Assistant Professor, Dept. of Civil and Environmental Engineering, Colorado State Univ., Campus Delivery 1372, Fort Collins, CO 80523-1372.