Throgs Neck Pumping Station Upgrade

Throgs Neck Pumping Station, located in the Bronx within the NYC Department of Sanitation maintenance yard and adjacent to the Westchester Creek, was built in 1945 and upgraded in 1980.  The station has a capacity of 37 MGD and uses three large dry pit centrifugal submersible pumps to pump sanitary and CSO flow to the Hunts Point WPCP. 

The existing station requires extensive upgrades to ensure the continued reliable conveyance of sanitary and combined sewer flow from the associated service area in the south Bronx borough to the Hunt’s Point Water Pollution Control Facility during normal and emergency operation conditions.  The upgrades to the existing pumping station need to be completed while maintaining the operation of the station.  An interim pump system will be implemented while the Throgs Neck Station is under rehabilitation. 

With an estimated construction cost of $55 million, the scope of this project includes building upgrades to the existing facility that comply with new DOB and 10-state standard requirements; mechanical improvements, including new pumps, electrical upgrades, and a generator that will be installed above the new 500-year Critical Action Floodplain; replacement of two 36-Inch 500 LF force main; and site and roadway improvements.  

As part of the NYCDEP in-house design team, IEI provided site design, roadway improvements to Zerega Avenue and Lafayette Avenue, drainage design, utility relocation, design of the 36-inch sewer force main, design coordination with other disciplines and stakeholders, including the Department of Sanitation, NYCDOT, NYC Fire Department, Borough of Wastewater Treatment (BWT), and NYSDEC.