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NYC Green Infrastructure Program

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 beautifies City streets and neighborhoods while improving air quality.

View our interactive 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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Private Property Stormwater Incentives
DEP provides financial incentives for installing green infrastructure, or stormwater source controls, on private property in NYC. These programs help to cover up to 100% of the costs of designing and constructing green infrastructure practices.
Learn about the Green Infrastructure Grant Program
Learn about the Private Property Retrofit Incentive Program


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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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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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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