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Gilboa Dam Reconstruction

Environmental Assessment and Project Information

The Gilboa Dam (Dam) is part of New York City's Catskill Water Supply System, and is located within Schoharie County at the northern point of the Schoharie Reservoir in the Town of Gilboa. Constructed in 1919-1927 and placed into operation in 1927, the Dam has been in service for approximately 80 years. This gravity and embankment dam impounds the Schoharie Reservoir, the northern-most reservoir in the Catskill System. With its age-related spillway surface deterioration, the New York City Department of Environmental Protection (NYCDEP) has proposed to reconstruct the spillway and face of the Dam, install crest gates to manage the flows through the notch in the Dam, construct a new low-level outlet as well as, conduct general improvements to appurtenances in and around the Dam to extend its service life and to comply with New York State Department of Conservation dam safety guidelines

In accordance with the State Environmental Quality Review Act (SEQRA), as set forth in 6NYCRR Part 617 authorized by Article 8 of the Environmental Conservation Law, and the City Environmental Quality Review (CEQR) process, as set forth in Executive Order 91 of 1977 NYCDEP undertook an environmental review to evaluate and disclose the environmental effect of the proposed project.

The Environmental Assessment Form, attachments and current Project Description are presented below and will be available for viewing at the following repositories:

Gilboa Town Hall
Route 990V
Gilboa, New York 12076

Middleburgh Public Library
323 Main Street
Middleburgh, NY 12122-0670

Notice of Intent

Environmental Assessment Form

Reservoir Levels

Current: 70.7%

Normal: 73.3%