Presto Geosystems

Porous pavement technology - Case Study


Courtesy of Presto Geosystems

Porous pavement systems address environmental issues, such as aesthetics and permeability, while providing needed support for a wide variety of loading requirements. From heavy emergency vehicles to pedestrian foot traffic, porous pavement applications range from fire access lanes to utility roads, trails, walkways, and other high use areas. Porous systems are designed to handle the most demanding turf protection and load support requirements while allowing for vigorous growth of turf grass.

Stormwater Storage
With aggregate infill, porous systems create a natural stormwater storage system by allowing water to percolate into the ground, decreasing stormwater runoff and allowing natural groundwater replenishment. Aggregate with 35-45% void space creates a stormwater storage area that allows stormwater to slowly permeate into the existing ground while supporting loads. With 87-98% open surface area, porous pavement systems provide benefits over traditional hard surfaces, including:

  • Lower development and construction costs by minimizing use of valuable land for stormwater holding systems.
  • Lower cost of stormwater collection and discharge systems as reduced stormwater runoff allows the use of smaller, less expensive discharge pipes.
  • Lower future cost of ground maintenance as potential turf damage caused by loading is significantly reduced.
  • Direct replenishment of ground water as stormwater percolates into the ground through the open design.

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