The major purpose of this project was to verify and improve the trial Mn/DOT Dynamic Cone Penetrometer (DCP) specification developed in 2002 through additional field tests and implementation on several pilot construction projects. Eleven construction projects from around the state were selected for testing during the summer of 2003. At each construction project, several locations were randomly selected for testing. At each location, various devices were used to obtain in-situ stiffness, strength, density and moisture data. In addition, samples were also taken for gradation and Proctor tests from the majority of the test locations. The materials included Select Granular, CL3, CL5, CL6, CL7 and full-depth reclamation. The proposed DCP specification from 2002 testing was validated and modified using the 2003 data.
