1. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, 1400 Townsend Blvd., Michigan Technological Univ., Houghton, MI 49931.
2. Associate Professor, Dept. of Civil and Environmental Engineering, 1400 Townsend Blvd., Michigan Technological Univ., Houghton, MI 49931 (corresponding author).
3. Chief Consulting Engineer, South Florida Water Management District, 3301 Gun Club Rd., West Palm Beach, FL 33406.
4. Vice President of Engineering, NRI, 346 South Killian Dr., Lake Park, FL 33403.