Green Infrastructure

Greenstreet with a variety of plants

Green Infrastructure is a citywide system of engineered landscapes that transform unused impervious areas into vibrant and pervious green space. Through inter-agency partnerships, we build spaces that provide a multitude of social and environmental benefits; the quality and performance of these spaces are enhanced through our ongoing research work.

History

Launched in 1996, the Greenstreets program began as a partnership between the NYC Parks and the New York City Department of Transportation (DOT). The program was created to change unused road areas into green spaces that beautify neighborhoods, improve air quality, reduce air temperatures, and calm traffic. Since its beginning, over 2,500 Greenstreets have been built citywide.

What we do

In 2010, the Greenstreets program became the Green Infrastructure Unit, expanding our focus to active stormwater capture. The New York City Department of Environmental Protection (DEP) has partnered with the Green Infrastructure Program to build cost-effective stormwater capture to help reach its water quality goals. Because of our recent funding source, new greenstreets will be constructed in DEP-designated priority sewersheds, where the Combined Sewer Overflow (CSO) effect is most significant. Learn more about DEP and their Green Infrastructure Plan.

Greenstreet Requests

We appreciate your interest in making a request to our Green Infrastructure Program. We work with DEP to determine Stormwater Greenstreet (SGS) and Right-of-Way Bioswale (ROWB) locations according to hydraulic analysis, site survey, existing conditions, and the NYC Department of Transportation (DOT) traffic safety standards. We also require soil borings and soil permeability tests at each location to determine whether the subsoil is suitable to infiltrate stormwater.

At this early stage of the Program, we are not processing requests and we cannot provide exact locations of all proposed ROWBs. However, once a construction schedule is in place, it's our procedure to notify neighborhoods of upcoming project locations by sending postcards and by reaching out to the local Community Boards. As of 2012, we have begun construction in the following priority combined sewershed areas: Flushing Bay, Bronx River, and Hutchinson River.

We will still build traditional greenstreets in any community, but only if it comes with independent and full funding. Otherwise, any greenstreet request will now be rated on its location within a priority sewershed, its capacity to capture stormwater, its alignment with other agency infrastructural improvements, its complexity of maintenance, and its capacity to link separated green spaces into a greater whole, otherwise known as ecological connectivity. In addition, any request that comes with a maintenance commitment will be rated with a higher score.

Useful Links

NYC Green Infrastructure Plan
DEP Right of Way Bioswale Standard Designs
Priority Sewersheds in Google Maps — These boundaries are for planning purposes only. Actual sewershed locations require a more detailed review of sewer maps.

Contact

Nette Compton
Director of Green Infrastructure
Olmsted Center
Flushing Meadows-Corona Park
Flushing, NY 11368
Email:Nette.Compton@parks.nyc.gov