PHILADELPHIA’S BOLD PLAN: Green City, Clean Waters – an inter-generational commitment to “optimize and engineer the landscape” to mimic and restore its natural hydrologic regime!
Philadelphia hopes by the mid-2030s to create the largest green stormwater infrastructure in the United States. Nancy Stoner says the program was never solely about slashing combined sewer overflow, but also about providing larger environmental and social benefits. “Philadelphia wanted to do much more,” Stoner says. “They did a benefits analysis before they began that showed it would enhance air quality and climate resiliency. It takes the problem of stormwater and turns it into an amenity.”