Earlier this year, New York City committed $95 million to turn Brooklyn parks and courts into stormwater storage. Today, the project can manage nearly 30 million gallons of rainwater a year, easing pressure on sewers and streets

Heavy rainfall can overwhelm urban drainage systems in a matter of minutes, sending large amounts of water into streets, properties, and sewers at the same time. New York City is responding with an approach that gives ordinary public spaces an additional role: helping hold stormwater during intense downpours.

Rather than depending entirely on conventional drainage infrastructure, the city is incorporating stormwater storage into places that residents already use, including basketball courts, parks, patios, and other public areas.