Porous Pavement:
A Win-Win Stormwater Strategy

There’s a lot of pavement in the United States—nearly 38,000 square miles (9.9 Million ha) or an area about the size of Indiana, according to calculations EBN has done ( Vol. 5, No. 1). The vast majority of this is impermeable surface that contributes to stormwater runoff. In certain applications, that pavement can be made porous so that the rainwater falling on it can soak into the ground instead of contributing to stormwater runoff.
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