National Dam Safety Program. Cortlandt Lake Dam (Inventory Number N.Y. 85), Lower Hudson River Basin, Westchester County, New York. Phase I Inspection Report,
Abstract
This report provides information and analysis on the physical condition of the dam as of the report date. Information and analysis are based on visual inspection of the dam by the performing organization. Visual inspection of this dam did not reveal conditions which constitute an immediate hazard to human life or property. However, the dam has some deficiencies which require further engineering investigations and remedial work. The structural stability analysis performed for this report indicated that the stability of the spillway section of the dam is questionable. The analysis indicated that the dam was unstable for all conditions studied. The analysis performed was based on available information and assumptions made may not reflect actual conditions. However, the analysis does indicate that there are serious questions about the stability of this structure and further investigations are required. The inspection revealed a semicircular wet area just beyond the downstream end of the left windwall. There was active clear seepage in this area which had caused some sloughing. It is recommended that within 3 months of the date of notification of the owner, investigations into the structural stability and seepage problems on this dam be commenced. The structural stability investigations should include subsurface explorations and concrete cores to obtain information about the structure and its foundation conditions. This data should then be incorporated into a detailed stability evaluation and, if necessary, modifications to the structure should then be designed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 26, 1981
- Accession Number
- ADA108671
Entities
People
- George W. Koch
Organizations
- New York State Department of Environmental Conservation