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Dynamic Cone Penetrometer

Research and Development of DCP
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DCP Resources


- Mn/DOT Modified Penetration Index Method


DCP ASTM Standard Test Method


Operation Video



For more information:

MnDOT Grading and Base Section


John Siekmeier, Road Research


Research Topics



The Dynamic Cone Penetrometer (DCP) was first introduced to Mn/DOT at the Minnesota Road Research Project (Mn/ROAD).  Since 1993 the DCP has been used by Mn/DOT as an acceptance tool for the compaction of pavement edge drain trenches.  In 1999, the Penetration Index Method for compaction acceptance of base aggregate Classes 5, 6, and 7 was adapted by Mn/DOT, which requires the use of the DCP as the testing device.


The Mn/DOT specifications are found in Modified Penetration Index Method



For a brief description of the DCP, see Pavement Interactive



Minnesota DCP Research and Implementation Projects


Other References