Geotechnical site characterization is an initial first step in each and every civil engineering project as information and data about the subsurface must be collected in order to provide a safe, economic, and feasible solution to foundation selection and ground modification works. This can be accomplished using conventional rotary drilling, soil borings, sampling, and laboratory testing, however, at rather great expense in terms of cost and time. As either a substitute or supplement, cone penetration testing (CPT), especially piezocone (CPTU) and seismic piezocone (SCPTU), offer the advantages of fast, continuous, and economical means to explore soil formations and provide a full suite of geoparameters needed in the analysis and design of shallow and deep foundations, walls, and construction projects.