The team transformed a parking lot for Washington D.C. school buses on the Anacostia Waterfront into a three-acre park that offers aboveground recreational amenities and a belowground stormwater sewer system. Runoff from seven city blocks is diverted to the system, which includes two underground 40,000-gallon cisterns; tree pits also collect runoff. The reused water provides nearly 95% of the park's needs, saving an estimated 1.5 million gallons of potable water annually. Park amenities include a rain garden, pavilions, an ice-skating rink and a cafe—as well as interactive water fountains and interactive sculptures.