News Releases

U.S. Army Corps of Engineers' Completes Chief Report for Mamaroneck & Sheldrake Rivers Basin Flood Risk Reduction Study

Published Jan. 9, 2018

NEW YORK – The U.S. Army Corps of Engineers, New York District, in partnership with the New York State Department of Environmental Conservation (DEC), is pleased to announce the completion of the Mamaroneck and Sheldrake River Basin Flood Risk Management Study. The Chief of Engineer’s Report was endorsed and signed by the Chief of Engineers at USACE Headquarters on 14 December 2017.  Following the study phase, it now will be submitted to the Assistant Secretary of the Army, Office of Management and Budget, and Congress for approval and authorization so it can become eligible to receive federal funding for the pre-engineering and design phase and construction phase.


“Getting this report completed and submitted to Congress represents a significant step in the process,” said Col. Thomas Asbery, commander, New York District. “We’ll continue to work with our stakeholders at the federal and non-federal levels to advance this study to the next phase of development and ultimately into construction to provide residents of Mamaroneck and surrounding communities with additional flood risk reduction measures increasing the safety of the residents within the project area.”


DEC Commissioner Seggos said, "The completion of this study is the result of a collaborative effort with the U.S. Army Corps of Engineers and our local sponsors, Westchester County and the village of Mamaroneck. Once constructed, the plan will provide a long-term solution to the flooding risk in the village. This effort marks a significant milestone in Governor Cuomo's plan to better prepare and protect New York communities from future flooding and moves us one step closer to developing and implementing these important flood risk reduction and resiliency measures. DEC commends our partners at the U.S. Army Corps of Engineers for their expertise and urge swift federal approval of the study's findings to enable continued momentum of the project."


The Mamaroneck and Sheldrake Rivers’ recommended plan calls for channel modifications to widen and deepen the Mamaroneck and Sheldrake Rivers, a diversion culvert to reduce elevated water levels during storm events, the  removal/replacement of bridges, structure elevation, and the construction of  retaining walls to minimize the footprint of the project. The Final report and associated documents for the project are available on the New York District’s web site:


New York District is responsible for the Corps’ water resources development, navigation and regulatory activities in northeastern New Jersey, eastern and south-central New York State, and parts of Vermont, Massachusetts and Connecticut. The district is also responsible for design and construction at Army and Air Force installations in New Jersey, New York, and Greenland. The District also provides support following disasters and for the Global War on Terror.

Hector Mosley

Release no. 18-001