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June 29, 2018, (718) 595-6600

Breathing New Life Into Flushing Bay Environmental Dredging New Wetlands and Significant Reductions in Sewer Overflows

Flushing Bay City Skyline

More than $200 Million in Upgrades Improves Ecological Health of the Bay, Removes Odors

89,000 Cubic Yards of Sediment Removed; 3.5 Acres of New Wetlands Constructed

Photos Available on DEP’s Flickr Page

New York City Department of Environmental Protection (DEP) Commissioner Vincent Sapienza today joined with community leaders and environmental advocates to announce substantial progress on more than $200 million in ecological improvements for Flushing Bay. Work includes the ongoing construction of more than three acres of new wetlands that will naturally filter the water in the Bay, the recently completed dredging of 89,000 cubic yards of sediment, and an upgrade of the sewer system that is preventing 225 million gallons of pollution from being discharged into the Bay each year. Reducing the volume of sewer overflows, removing built-up sediment that would become exposed during low tide and create nuisance odors, and restoring the natural wetlands to help filter impurities from the water has resulted in a visibly healthier waterway for residents to enjoy and a more hospitable habitat for fish and wildlife.

“Investing more than $200 million in environmental upgrades has allowed us to significantly improve the health of Flushing Bay while also providing a breath of fresh air for residents and businesses in northern Queens,” said DEP Commissioner Vincent Sapienza. “Removing historical pollution, increasing the capacity of the sewer system to reduce overflows, and building new wetlands that will filter the water and provide a habitat for wildlife has created a new start for the ecological health of Flushing Bay.”

“As our community continues to evolve and develop, there is an immediate opportunity to transform the polluted waterways surrounding Flushing into an accessible, fishable, swimmable community resource, but this cannot be done without sufficient investment by our local governments and property owners,” said Council Member Peter Koo. “This investment in Flushing Bay represents a good first step to reclaiming our waterfront, and I thank DEP for working in good faith with our community. I look forward to continuing these important efforts together to seek new ways to make sure Flushing Bay and Creek are able to live up to their currently unrealized potential as sources of environmental pride.”

“The long-blighted Flushing Bay is one of the City’s most precious waterways,” said Council Member Costa Constantinides, Chair of the City Council Committee on Environmental Protection. “Rebuilding our ecosystems doesn’t just reopen areas of Flushing Bay to the public, it makes all of New York City more sustainable for the future. We must endeavor to make Queens become a greener place to live, and I look forward to seeing the rest of our borough’s rivers and bays become cleaner.”

Wetland Construction

Over the last 150-years, New York City has lost approximately 85 percent of its historical wetland coverage, much of this within the Flushing Bay watershed. These important natural areas serve as a protective transitional area between a body of water and dry land. Wetlands are extremely valuable as they help to absorb storm surge, filter impurities from the water, increase dissolved oxygen levels, reduce coastal erosion, capture greenhouse gases and serve as a productive ecological habitat and nursery for juvenile fish. Wetlands are among the most productive natural areas on earth and are particularly important in urban waters.

In an effort to return some of these natural functions to Flushing Bay, in 2017 DEP began a $19.2 million project to construct more than three acres of new wetlands along the southern shore. This work included the placement of more than 53,000 cubic yards of wetland sand, shoreline embankment material and granular filter, as well as the planting of more than 110,000 plugs of Switchgrass, Saltgrass, Seaside Goldenrod, Smooth Cordgrass, Saltmeadow Cordgrass and Common Three Square. The planting and monitoring of the wetlands will continue for the next several years.

Environmental Dredging

The $15.4 million project to dredge portions of Flushing Bay in the vicinity of the World’s Fair Marina and two combined sewer outfalls began in January 2017 and was completed the same year. This work has significantly reduced nuisance odors in the area. Long-reach excavators situated on floating barges dredged 91,000 cubic yards of sediment over a 17.5 acre area. In addition, non-native trees, 78 deteriorated timber piles and an abandoned pier were removed to improve views along a portion of the 1.4-mile long Flushing Bay Promenade.

Sewer Optimization

The $33 million subsurface sewer upgrades took place at five key junction points within the sewer system between LaGuardia Airport and the Long Island Expressway. The work focused on raising and lengthening the weirs that direct the wastewater to the Bowery Bay Wastewater Treatment Plant. By directing additional wastewater to the treatment facility, this project has reduced sewer overflows into Flushing Bay by 225 million gallons annually.

The work began in the spring of 2016 and was completed in the spring of 2018. As some of the work required closing portions of busy roadways in order to access the subsurface sewer regulators, crews often worked during the overnight hours to minimize any inconvenience to motorists and residents.

The five regulators that were upgraded are located at:

  • LaGuardia Airport Maintenance Yard
  • Ditmars Boulevard and 100th Street
  • Ditmars Boulevard and 31st Drive
  • 108 Street and 43rd Avenue
  • 108th Street and Horace Harding Expressway

College Point Sewer Separation

Work began in 2016 on a $132 million project to separate the existing combined sewer system in College Point and permanently decommission three combined sewer outfalls on the eastern shore of the Bay. This will result in a nearly 50 million gallon reduction in sewer overflows annually. The construction of more than 400 new catch basins, nearly 12 miles of new sewers and nearly 10 miles of new water mains will continue through 2021. Existing wetlands in the vicinity of MacNeil Park will also be expanded with the planting of an additional 10,000 square feet of Saltmarsh Cordgrass.

Green Infrastructure

In the Flushing Bay and Flushing Creek watersheds, DEP has built more than 1,250 green infrastructure assets over the last five years. This includes curbside rain gardens that collect and manage stormwater before it can ever enter the combined sewer system and contribute to overflows. The work is primarily taking place in the neighborhoods of Corona, Elmhurst, Forest Hills, Rego Park, Middle Village, Flushing and Murray Hill. Assets also include the newly opened JHS 189 Flushing International School playground that was retrofitted to capture 860,000 gallons of stormwater per year, vastly improving the health of Flushing Creek. Siting for the construction of additional rain gardens and planning for new green playgrounds is ongoing.

In addition, in 2009, DEP activated the $291 million Flushing Bay Combined Sewer Overflow Retention Facility. The tank can hold up to 43 million gallons of combined sewage from central Queens and hold it until the storm passes. The sewage is then pumped to the Tallman Island Wastewater Treatment Plant where it is cleaned.

The sewer optimization, environmental dredging, wetland construction and green infrastructure projects are part of agreements between DEP and the New York State Department of Environmental Conservation that aim to improve harbor water quality throughout New York City.

DEP manages New York City’s water supply, providing more than 1 billion gallons of water each day to more than 9.6 million residents, including 8.6 million in New York City. The water is delivered from a watershed that extends more than 125 miles from the city, comprising 19 reservoirs and three controlled lakes. Approximately 7,000 miles of water mains, tunnels and aqueducts bring water to homes and businesses throughout the five boroughs, and 7,500 miles of sewer lines and 96 pump stations take wastewater to 14 in-city treatment plants. DEP has nearly 6,000 employees, including almost 1,000 in the upstate watershed. In addition, DEP has a robust capital program, with a planned $19.1 billion in investments over the next 10 years that will create up to 3,000 construction-related jobs per year. For more information, visit, like us on Facebook, or follow us on Twitter.

More Information

NYC Department of Environmental Protection
Public Affairs

59-17 Junction Boulevard
19th Floor
Flushing, NY 11373

(718) 595-6600