The I-73 Southern Section Right of Way consists of approximately 40 miles of proposed highway through Dillon and Marion County, SC. Terracon provided preliminary geotechnical exploration services for Segments A and B of the right of way. Following the completion of the geotechnical field exploration, Terracon worked with the team to complete the geotechnical data report, preliminary geotechnical report and seismic report. Terracon has completed geotechnical exploration services for 21 proposed bridge sites in Segment A. The exploration for segment A included standard penetration test soil borings, insitu soundings, and shear wave velocity measurement through seismic CPTu testing and MASW testing. We also performed the shear wave velocity measurement through MASW testing for 10 sites in Segment B. In addition, Terracon performed the seismic analysis for Segments A and B and provided preliminary foundation recommendations for the bridges in Segment A.