Croton Water Filtration Plant

Shaw is overseeing construction of the $2 billion Croton Water Filtration Plant, a four-story facility that will treat roughly 10 percent of New York’s daily water requirements. Completion of the plant will be a significant step in further improving water quality for the eight million New Yorkers who rely on the Croton water system. Not only will Croton be the largest dissolved air floatation facility in North America, but it also will be the New York City Department of Environmental Protection’s first in-city water treatment plant. Shaw’s engineering and construction services are supporting the agency’s long-term plan to create the first environmentally sustainable 21st century city.

The plant requires innovative solutions to complete construction below grade under an existing golf course. Under 16 construction contracts, the work includes an extensive rock-blasting program for the removal of 900,000 cubic yards of rock and 250,000 cubic yards of soil, as well as construction of a new 400,000-square-foot building, an 800-foot raw-water tunnel and two new 4,000-foot treated-water tunnels.

The raw-water tunnel will convey untreated water from the new Croton aqueduct to the new water treatment plant. Two treated-water tunnels will be constructed to connect the plant to the existing water distribution system.

In addition, a new shaft and meter chamber is being constructed at the Jerome Park Reservoir in the North Bronx to connect the treated-water tunnels to the existing water distribution system.

Construction also includes the installation of a 6-inch force main to convey residuals from the treatment plant to the Hunts Point Water Pollution Control Plant seven miles away.

The Croton plant, the oldest in New York City’s water supply systems, has been providing drinking water to the city and upstate communities since 1842. All work is being performed under stringent community, environmental and quality-of-life requirements, as well as a commitment to providing Bronx-based jobs.

For more information, visit the Croton Water Filtration project website.

Project Details

New York City Department of Environmental Protection

New York

Construction management

2004 – present