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Released by the U.S. Army Corps of Engineers, New York District, in partnership with the New York State Department of Environmental Conservation, the report was prepared to evaluate the significance of potential environmental impacts of flooding.
According to the study fact sheet, the study and report were undertaken due to a severe flood risk that persists in the Village of Mamaroneck based on the recurrence of flood events and the damages sustained. The largest floods of record resulted from the storms of October 1955, June 1972, September 1975, and April 2007.
Extensive damages and even loss of life have occurred during these major flood events. Damages within the Mamaroneck and Sheldrake Rivers Basin for the June 1972 and September 1975 floods alone amounted to approximately $18 million and $92 million, respectively, based on conditions of development at the time and October 2015 price levels.
The combination of low channel capacity, small bridge openings, developmental encroachment along both rivers, urbanization and a poor flow conveyance at the confluence of both rivers has contributed to significant and frequent flooding.
The report suggests construction projects that could fix, or lower the incidents of flooding.
To request a copy of the Draft Environmental Assessment and submit written comments, contact: The U.S. Army Corps of Engineers, New York District, Planning Division-Environmental Branch, (ATTN: Matthew Voisine), 26 Federal Plaza, New York, NY 10278-0090. Public comments can also be submitted by e-mail to matthew.voisine@usace.army.mil. Comments received by March 30, will be considered.
The report and associated documents can be viewed on the New York District's website here.
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