Today’s increasingly stringent stormwater regulations continue to create the need for stormwater management. The preferred method is to retain the stormwater on-site rather than having it move off-site through overland flow or into storm sewers. Typical solutions—retention or detention ponds—are expensive to construct, occupy valuable land, require significant maintenance, can be safety hazards, and are unattractive nuisances. An alternative solution is to reduce the amount of impermeable surface on the site. Hard-surface (asphalt and concrete) porous pavements are expensive and can be very difficult and time-consuming to install. Rigid and flexible plastic porous pavement systems provide a low-cost, easy-to-install surface designed to handle the most demanding load requirements. The porous pavers from Presto Geosystems can have a vegetated or aggregate infill.

Learning Objectives:

• Understand the benefits of porous pavements.
• Learn how the rigid and flexible porous pavements perform under varying infill materials and traffic-loading conditions.
• Learn how to apply vegetated and aggregate porous pavements for a variety of project conditions.
• Understand how porous pavements are capable of detaining stormwater runoff.