Sustainable Development Green Initiatives: Permeable Pavements
Permeable pavement is a porous pavement that filters and allows a portion of roadway and/or parking lot runoff to infiltrate the surface to recharge ground water sources. The permeable pavement program was created to reduce runoff from land use developments and educate local governments on the benefits of permeable pavements.
Public infrastructure such as sidewalks, bike paths, and parking facilities constructed or retrofitted with permeable pavements in place ease the strain on drainage systems by diverting a portion of surface runoff to ground water reserves. They are cost effective because they reduce a development’s dependence on swales (artificial dips or slopes in the surface designed to channel, filter and increase infiltration), retention ponds, and other stormwater management tools.
Frequently used pavement types include:
1. Plastic: A plastic honeycomb-shaped grid that allows grass
or other vegetation to grown between.
2. Concrete: Composed of concrete blocks with seams in
between for better drainage.
3. Asphalt/concrete (pictured): Composed of an asphalt and
concrete surface with fine particles left out to make it more
porous for better filtration.
Benefits of Permeable Pavement
Filters runoff for pollutants that may run off into drinking water sources
Replenishes ground water sources
Reduces flood risks
More aesthetically appealing than traditional concrete pavement
North Central Texas Council of Governments | 616 Six Flags Drive P.O. Box 5888 Arlington, TX 76005-5888
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