Long Term Performance and Maintenance of Permeable Interlocking Concrete Pavement Systems

Length: 1 hour
AIA Provider Number: J374      AIA Course Code: OC113 AIA Credit: 1 LU/HSW
LA CES Course Code: OC113      LA CES Credit: 1 PDH (HSW)
DP PDH: 1 PDH for Engineers


This program provides a brief overview of Permeable Interlocking Concrete Pavement (PICP) systems and then focuses on the long-term surface infiltration performance of these effective stormwater control measures. Mechanisms for sedimentation and clogging of PICP joints is discussed along with a review of ASTM C 1781 testing procedures. Total Suspended Solids (TSS) removal efficiencies and current research on variables that contribute to hydraulic performance of PICPs are discussed. The presentation concludes with information on surface infiltration maintenance and restoration methods including a review of available cleaning machines. PICP maintenance costs and inspection checklists are also reviewed.

Learning Objectives: 

  •  Participants will understand clogging mechanisms for PICP surfaces.
  •  Participants will be able to identify relationships among PICP joint widths, jointing stone size, and contributing impervious areas.
  •  Participants will be able to identify different PICP joint cleaning machines, and their applications and effectiveness.
  •  Participants will understand performance & maintenance criteria recommended for PICP systems.