1. Postdoctoral Research Associate, Dept. of Civil and Environmental Engineering, Univ. of Maine, Orono, ME 04469-5790; formerly Research Assistant, Dept. of Civil Engineering, Auburn Univ., Auburn, AL 36849-5337.
2. Professor, Dept. of Civil Engineering, Auburn Univ., Auburn, AL 36849-5337 (corresponding author).
3. Research Hydrologist and Professional Geoscientist, USGS at Texas Tech Univ., Lubbock, TX 79409.
4. Associate Professor, Dept. of Civil and Environmental Engineering, Texas Tech Univ., Lubbock, TX 79409-1023.
5. Director of Engineering, R.O. Anderson Engineering, Inc., 1603 Esmeralda Ave, Minden, NV 89423.