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Croton Water Filtration Plant

An innovative ecological restoration project

wetland delineation and ecological planning on croton water treatment plant

Project Details

Great Ecology is on the Grimshaw Architects team along with Ken Smith Workshop and Rana Creek to plan, design and oversee a series of constructed wetlands at the Croton Water Filtration Plant in Van Cortlandt Park, currently the City’s largest infrastructure project. Great Ecology conceived of a wetland habitat for the perimeter of the facility to store both groundwater and stormwater, process and improve its quality and recycle it for irrigation on site. The system uses both stormwater that is collected from the nine-acre green roof—the largest in the country–and upwelling groundwater that is generated by the nine-story structure built 120 feet underground. The wetland habitats were designed by drawing from influences of natural landscapes of the Bronx and surrounding New York State region. Great Ecology produced construction drawings, participated in value engineering and construction scheduling, designed an operations and maintenance program for the client, and interfaced extensively with the NYC client stakeholders. The project received the  NYC Public Design Commission Award of Excellence in 2008.



Ecological Design & Planning, Habitat Restoration, River, Stream, and Riparian Restoration, Wetland Delineation & Permitting,


City of New York




Bronx, New York

Landscape Architect

Grimshaw Architects