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NYC Green Infrastructure Program

New York City’s Green Infrastructure Program is a multiagency effort led by the Department of Environmental Protection. DEP and agency partners design, construct and maintain a variety of sustainable green infrastructure practices such as green roofs and rain gardens on City owned property such as streets, sidewalks, schools, and public housing. Green infrastructure promotes the natural movement of water by collecting and managing stormwater runoff from streets, sidewalks, parking lots and rooftops and directing it to engineered systems that typically feature soils, stones, and vegetation. This process prevents stormwater runoff from entering the City’s sewer systems. DEP is currently building green infrastructure in compliance with NYS Department of Environmental Conservation (DEC) requirements to reduce combined sewer overflow (CSO) discharges into New York City’s waterbodies. DEP is also exploring the use of green infrastructure to reduce polluted runoff from reaching waterbodies through the separate storm sewer system. In addition to the benefits to water quality, green infrastructure also beautifies City streets and neighborhoods while improving air quality.

View online GIS map of green infrastructure projects

Rain Gardens
The New York City Department of Environmental Protection is building rain gardens and other types of green infrastructure to manage stormwater and improve water quality in local waterways.
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Grant Program for Private Property Owners
DEP offers funding for the design and construction for rain gardens, green roofs, permeable pavers, and other types of green infrastructure on private property.
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Green Infrastructure Plan Annual Reports

Green Infrastructure Plan, Annual Reports and CSO Consent Order Submittals
In 2012 the New York State Department of Environmental Conservation (DEC) and DEP signed a groundbreaking agreement to reduce combined sewer overflows using a hybrid green and gray infrastructure approach. The CSO Consent Order outlines, among other things, a roadmap for the implementation of green infrastructure throughout the combined sewer areas.
Learn more about the City’s green infrastructure reporting and CSO Consent Order submittals
Learn More about the City’s CSO Program and Long Term Control Plans

Neighborhood Demonstration Areas
Starting in 2011, DEP implemented three Neighborhood Demonstration Areas to monitor the effectiveness of green infrastructure on a multi-block scale.
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Green Infrastructure Standards and Specifications
DEP creates standards and specifications for the design of right-of-way green infrastructure.
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Is Green Infrastructure coming to your neighborhood?
Learn more about NYC’s Green Infrastructure approach, and the benefits of green infrastructure.
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Osborne Association roof

Types of Green Infrastructure
In New York City, Green Infrastructure describes an array of practices that use or mimic natural systems to manage urban stormwater runoff.
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Get Involved and Find Resources
DEP’s Green Infrastructure Program provides many opportunities for City residents to get involved in improving water quality in local waterways.
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2011 Preliminary Pilot Monitoring Results

Research and Development
Beginning in 2010, more than 30 green infrastructure source controls have been constructed and monitored as part of a green infrastructure pilot program.
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