Objective: The majority of the jointed plain concrete pavements (JPCP) constructed in Pennsylvania perform with little maintenance throughout the intended design life. Many perform well beyond their intended design life while carrying substantially more traffic than what they were designed to carry. There are some pavements that have exhibited early distress in the first five to ten years after construction. The maintenance/repairs generated by this early deterioration can generate substantial costs for a pavement type that is typically considered to be relatively maintenance free. The objective of this research effort is to help identify the cause of this premature deterioration so that it can be prevented in future projects and also provided guidance on how to address this deterioration once it has developed.