This American Society of Civil Engineers Civil Engineering Source article describes how New York City’s Bluebelt program uses natural waterways and wetlands alongside gray infrastructure to reduce flooding, improve water quality, and restore natural drainage corridors on Staten Island and beyond. As the program expands into other boroughs, our firm is helping the New York City Department of Environmental Protection address new engineering challenges related to combined sewer and stormwater systems, restoration of original water systems, and raising roadways.