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==Overview==

==Overview==

Permeable paving allows stormwater to drain through the surface and into a stone reservoir, where it infiltrates into the underlying native soil or is temporarily detained.  

Permeable pavements are an alternative to conventional impervious pavement that allows stormwater to drain through the surface and into a stone reservoir, where it infiltrates into the underlying native soil or is temporarily detained.  Depending on the native soil properties and physical constraints, the system may be designed with no underdrain for full infiltration, with an underdrain for partial infiltration, or with an impermeable liner and underdrain for a non-infiltrating, or detention and filtration only practice.  

The following are different types of permeable paving:  

Permeable pavement types include:

* Permeable interlocking concrete pavers (PICP)

* Permeable interlocking pavers (concrete and composite materials)

* Plastic or concrete grid systems  

* Permeable grid systems (concrete or composite materials)

* Pervious concrete  

* Permeable articulated block systems  

* Pervious asphalt

* Pervious concrete (poured-in-place or pre-cast)

* Porous asphalt

{{textbox|Permeable paving is ideal for:

{{textbox|Permeable paving is ideal for:

*Sites with limited space for other surface stormwater BMPs

*Sites with limited space for other surface stormwater BMPs