Permeable Interlocking Concrete Pavements are comprised of a layer of concrete pavers separated by joints filled with small stone.  Water enters joings between solid concrete pavers and flows through an "open-graded" base.  The void spaces among the crushed stones store water and infiltrate it back into the soil sub-grade.  The stones in the joints provide 100% surface permeability and the base filters storm water and reduces pollutants.

Permeable Interlocking Concrete Pavers (PICPs) are eligible for LEED credits under the U.S. Green Building councils guidelines.  These requirements limit runoff and water pollution by managing storm water.  These pavements can reduce runoff-generating imprevious cover and decrease the rate and quantity of runoff.

The design of the Washington 21 Permeable Paver allos water to flow around and through the paver joints effortlessly.  The design is dynamic enough to also allow these units to be used in conuunction, seamlessly with our standard Washington System allowing for flexible design between permeable and non-permeable areas in the same design. 

ALL PERMEABLE PAVER COLORS ARE NON-STOCKED.