Pass by the 800 block of tiny Percy Street near the Italian Market in South Philadelphia and you may not even notice that you’re in the presence of Philadelphia’s first street to be retrofitted with porous paving.

Check out the new video from GreenTreks to learn about the design, construction and functionality of Percy Street’s porous paving. It’s just one of the many green infrastructure tools that PWD is using to soak up stormwater before it can enter our sewer system and cause overflows into our rivers and streams.