FHWA Posts Updated Tech Brief on Permeable Interlocking Concrete Pavement (PICP)

Knowledge Base

In 2015, FHWA posted a Tech Brief on PICP to round out other briefs on pervious concrete and porous asphalt. Since then, research by the University of California Pavement Research Center resulted in revised—and more cost effective—subbase thickness solutions. These appear in the recently released ASCE/ANSI 68-18 PICP national standard as well as in the 5th Edition of ICPIs PICP manual. The UCPRC research and the ASCE 68-18 PICP design standard are now referenced in the updated PICP Tech Brief.