Croton WTP Named ACEC National Grand Award Winner
(WASHINGTON, D.C. – June 19, 2017) – The Croton Water Filtration Plant was named an ACEC National Grand Award Winner at the 50th Anniversary Engineering Excellence Awards Gala in Washington, D.C.
The Croton water supply plays a fundamental part in New York City’s water supply system, providing up to 30% of NYC’s drinking water. The AECOM/Hazen and Sawyer joint venture prepared conceptual designs, performed environmental impacts studies, prepared preliminary and final designs, and provided design services during construction and start-up operational services for this landmark plant, located under the Mosholu Golf Course, within Van Cortlandt Park.
Built entirely underground and requiring deep rock excavation and tunneling for the necessary conveyance tunnels, the four-story, 290-mgd plant will provide a safe and reliable water source for generations to come. A high level of innovation was demonstrated by this project, including: use of stacked dissolved air filtration/flotation (DAF) tanks (the largest in the world), followed by ultraviolet light (UV) disinfection (one of the largest in the world); state-of-the-art digital automation architecture and systems; and utilization of extensive Computational Fluid Dynamics (CFD) and physical modeling throughout the design. The plant is designed as two 50 percent capacity process trains, capable of independent operation, to provide added operational flexibility and redundancy. The plant ensures a safe and reliable Croton water source for the future, as the City shuts down other water supply sources for maintenance and to make necessary repairs.