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New NY Bridge / Tappan Zee Bridge Replacement

The New York State Department of Environmental Conservation (NYS DEC) issued its permit for the New NY Bridge (PDF) (266 KB) (Tappan Zee Bridge Replacement) on March 25, 2013. DEC's permit allows construction of the new bridge to proceed and will include an extensive program of strong fish and water quality protections. The permit also includes an ten million dollar suite of environmental enhancements, consisting of research measures and ecological improvements in the Lower Hudson.

The permit contains comprehensive requirements for minimizing the environmental effects of construction. These include protective actions such as use of bubble curtains to safeguard fish from acoustic effects of pile driving, seasonal limits on dredging to avoid peak fish migration and spawning, monitoring sturgeon movement during construction, and requiring an independent Environmental Compliance Monitor who will observe the work and report to DEC. The permit requires a set of mitigative actions that will compensate for the temporary environmental disturbance of construction.

At Gay's Point restoration of a former river channel will be thoroughly analyzed and implemented if found feasible. In Piermont Marsh two hundred acres of invasive species will be eradicated, hydrologic connection of an oxbow in Crumkill Creek will be restored, the quality of Sparkill Creek stormwater entering the marsh will be improved with a green infrastructure project, and historic wetlands restoration will be assessed. Thirteen acres of oyster beds will replace those disturbed during construction.

An outreach campaign will be carried out in the commercial fishing industry targeted at reducing commercial by-catch of Atlantic sturgeon in the Atlantic Ocean. Finally, the permit requires a suite of actions that will enhance scientific understanding of sturgeon life in the river such as mapping their habitat, analyzing their diet, and adding to the number of sonically tagged sturgeon whose movements can be studied.

Final Permit for New NY Bridge (PDF) (266 KB) (Tappan Zee Bridge Replacement)

NYS DEC Contact Person:
John J. Ferguson
NYS DEC - Division of Environmental Permits
625 Broadway, 4th Floor
Albany, NY 12233-1750
Phone: (518) 402-9167
Fax: (518) 402-9168
E-mail the Division of Environmental Permits


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    Div.of Environmental Permits
    625 Broadway 4th Floor
    Albany NY 12233-1750
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