Platinum Award for Manhattan Pump Station

Stopple™ valves with diameters as large as 8.5 feet were placed within the main sewer discharge header, as needed to phase installation of the Main Wastewater Pumps, isolating flow from the existing header and wet well while connections were made to the new dual headers.

Prior to demolition of the existing pump room structure, a temporary structure was built within the existing building, to isolate the pumps, drives and motors so that they could remain in service. The new structure was built outside the temporary structure, and the temporary building was subsequently removed from within.

A first-of-its-kind 8-foot diameter ‘funnel plug’ was inserted into the surge tower, to isolate the existing header tie-in, using a diver and a sonar survey to ensure that a positive seal could be achieved. This installation had to be completed within a series of 90-minute windows at low flow periods, to avoid any dry weather discharges.

The Manhattan Pump Station design incorporates moving water as a theme, and provides an open, inviting building with large glass areas that allow the community to view operations. The project received an award in 2002 for Excellence in Design from the Art Commission of the City of New York. Read more about this project.

(NEW YORK, NY – July 16, 2012) – The American Council of Engineering Companies – New York has bestowed the 2012 Platinum Award for the construction of the Manhattan Pump Station in New York City.

Facing a Consent Decree to increase capacity, the NYC Department of Environmental Protection (NYCDEP) completed a $240-million expansion of the Manhattan Pump Station to pump up to 400 mgd of wastewater from the lower Manhattan combined sewer system to the Newtown Creek WWTP in Brooklyn, NY. The upgraded pump station, placed in service mid-2011, actually pumped up to 460 mgd during Hurricane Irene. The station features a full emergency generator backup to ensure long-term reliability and continuous service.

The project faced several critical challenges. The station, one of NYC’s largest, had to remain in operation at all times to handle continuous flows. It was located on a tight site (with community facilities and residences nearby) and sits upon silty soils, which complicated the structural design. Hazen and Sawyer’s design addressed all these challenges and the station was placed in service in advance of the Consent Order deadlines, while also incorporating sustainable and energy-saving features.

In addition to demonstrating how innovative techniques could be used to construct a major upgrade while keeping a critical station in service, the project considered community needs by minimizing odors and noise. Its architecture presents an aesthetic water motif with glassed walls through which visitors can observe operations. The design also emphasized use of sustainable features, reducing energy costs and greenhouse gas emissions and providing a healthier work environment.

Since our founding in 1951, Hazen and Sawyer has focused on two things: providing safe drinking water and controlling water pollution. Our range of services encompasses the planning, design, and construction management of water and wastewater-related projects – from clean water treatment, storage, and distribution to wastewater and stormwater collection, treatment, and reuse.

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