POROUS PAVING
courtesy of Cahill Associates

Environmental Benefits of Porous Pavement
* Reduces the amount of impervious surface from development.
* Reduces the volume of stormwater runoff, as well as the peak rate of flow.
* Reduces the discharge of pollutants and improves water quality.
* Facilitates groundwater recharge to maintain groundwater and base flow levels in nearby streams.
* Reduces drainage problems associated with stream channelization and sinkholes.


Economic Benefits of Porous Pavement

* Reduces the land area consumed by conventional detention facilities.
* Reduces the need for curbs, gutters, inlets, and storm sewers and other costly infrastructure.


Aesthetic Benefits of Porous Pavement

* Eliminates the need for unsightly detention basins, rip-rap channels, etc.
* Preserves areas such as woods or open space that would have been destroyed for detention basins.
* Eliminates puddling and flooding on parking lots.


 
paving diagram

porous paving photo


hydrologic cycle diagram