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Pervious Concrete

When it Rains, it Drains

For a comprehensive site devoted to pervious concrete, visit



Stormwater runoff occurs when rain falls. This runoff causes flash floods, increased pollution in rivers and streams, and loss of rainwater that could otherwise replenish water tables and aquifers.


pervious demo

Pervious concrete has a 15-25% void structure, allowing for 3-8 gallons of water per minute to pass through each square foot. This accounts for far more than is generated during any rain event.


Pervious concrete parking lots put rainwater back in the ground where it belongs!


Why use Pervious Concrete?

Mix Design and Properties

Installation Process


Success Stories

Pervious Concrete FAQ

Reprint of Construction Specifier Magazine Article



UNH Pervious Concrete Video
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UNH Pervious Concrete: 1500 Gallons in 3.5 minutes

This June 20, 2008 commentary-free video shows the volume flow in action!