1. Assistant Professor, Civil Engineering Dept. and Faculty Fellow, Global Institute for Energy and Environmental Systems (GIEES), The Univ. of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223 (corresponding author). E-mail: vogunro@uncc.edu
2. Duke Energy Distinguished Professor, Global Institute for Energy and Environmental Systems (GIEES), and Civil Engineering Dept., The Univ. of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223.
3. Project Manager, GeoTesting Express, Inc., Materials Technology Center, 1145 Massachusetts Ave., Boxborough, MA 01719.
4. Professor, Civil Engineering Dept., The University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223.
5. Staff Engineer, Weston and Sampson Engineers, Inc., 5 Centennial Dr., Peaboby, MA 01960.