Westchester County, NY
Multiple Westchester County Locations
The project work includes the study, design, and construction administration for the rehabilitation of several wastewater pump stations located throughout Westchester County sewer districts. The work includes rehabilitation/replacement of mechanical and electrical equipment including, but not limited to, pumps, piping, valves, screenings removal, instrumentation and control panels, standby generator, flood mitigation, electrical service, hazardous gas monitoring, structural, architectural, heating, and ventilating, and plumbing systems.
Upgrades were deemed necessary by the client based on equipment reaching end-of-life use. Hydraulic modeling of the pumping systems and force mains have been completed or currently ongoing for each station to aide in efficient pump selection. Modeling was completed for both average and peak flows.
Pump stations are located in the New Rochelle (Woodbine, Magnolia, Fifth Avenue), Mamaroneck (East Basin, West Basin, Edgewater, Saxon Woods), Bronx Valley (Saxon Woods), and North Yonkers (Hastings, Dobbs Ferry, Main Street, and Ludlow) Sanitary Sewer Districts and Croton Point Park. The work was completed as three separate design and construction contracts. The work included rehabilitation/replacement of mechanical and electrical equipment including pumps, piping, valves, screenings removal, control panels, standby generator, flood mitigation, electrical service, hazardous gas monitoring, structural, architectural, heating and ventilating and plumbing systems.
A total of 14 pumps stations were designed and rehabilitated or currently in the design phase. Design challenges for each station included a unique approach to mitigate impacts within environmentally sensitive, tidally influenced areas, development of a coordinated bypass pumping and sequence of work plans, maintaining operator access and station communication during construction and minimizing impacts to the surrounding area and local residences.