Common applications for pervious concrete are parking lots, sidewalks, pathways, tennis courts, patios, slope stabilization, swimming pool decks, greenhouse floors, zoo areas, road shoulders, drains, noise barriers, friction courses for highway pavements, permeable bases under a normal concrete pavement, and low-volume roads. Pervious concrete is generally not used solely for concrete pavements for high traffic and heavy wheel loads. Examples of a few applications of pervious concrete are shown in Figures 1 through 4.
The parking area of 70,000 ft2 of pervious concrete at Linden High School in California provides an excellent annual groundwater recharge of 700,000 gallons, or 2.2 acre-feet (Figure 5). A similar example is the pervious parking area of the Vacaville
Police Department building, which allowed the use of about 30,000 ft2 of otherwise unusable space under the drip lines of landmark trees. The pervious area recharges the groundwater with about 350,000 gallons (1.1 acre-feet) every year (Youngs, 2005).
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