Mt. Ida Dam Project


On September 28, 2018, an emergency engineering inspection identified the Ida Lake Dam as structurally unsound. In compliance with New York State Department of Environmental Conservation (DEC) dam safety regulations, the City removed of a section of the dam to alleviate immediate structural concerns. This reduced the Poesten Kill creek water and Belden Pond/ Ida Lake to their natural state.

To receive email updates regarding the Ida Lake Dam, please email [email protected]


  • Webcast: Presentation on “Alternatives Analysis for Ida Lake Dam” | PDF
  • Report: Alternatives Analysis for the Ida Lake Dam | PDF
  • Public Presentation – Ida Lake Dam – October 30 Community Meeting | PDF
  • DEC Dam Condition Rating Letter | PDF
  • Ida Lake Dam – Preliminary Lake Lowering Plan | PDF
  • Recommendation for Lake Lowering, Ida Lake Dam Structural Inspection | PDF
  • Inundation Map | PDF
  • Ida Lake Dam – Engineering Assessment (2014) | PDF
  • FEMA Grant Documents | PDF
  • Ida Lake Dam – Engineering Assessment (May 2012) | PDF
  • Article 15 Permit – NYS DEC | PDF
  • Modified Permit – DEC | PDF
  • SEQR Determination | PDF
  • SHPO No Adverse Impact | PDF
  • Troy & Poestenkill Green Infrastructure Study | PDF


  • City Announces Public Meeting to Discuss Status of Mt. Ida Dam (PDF | Plain Text)