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Accession Number:
ADA090939
Title:
National Dam Safety Program. Lake Placid Village Dam. (Inventory Number NY 781), Lake Champlain River Basin, Essex County, New York. Phase I Inspection Report,
Descriptive Note:
Corporate Author:
NEW YORK STATE DEPT OF ENVIRONMENTAL CONSERVATION ALBANY
Report Date:
1980-09-16
Pagination or Media Count:
143.0
Abstract:
The examination of documents and visual inspection of the dam and appurtenant structures did not reveal conditions which constitute an immediate hazard to human life or property. The dam, however, has a number of problem areas which require further investigation and remedial work. The structural stability analysis indicates that the dam is unstable when subjected to forces which could occur under the Probable Maximum Flood PMF loading condition. Unsatisfactory stability is indicated for the dam when subject to forces which could occur during the normal winter operations and the 12 PMF loading condition. A structural stability investigation should be started within six months to determine the characteristics of the uplift forces acting on the dam and to determine whether the foundation acts integrally with the dam section to resist overturning. Remedial work should be completed, depending on the results of the investigation, within two years. The hydrologichydraulic analysis establishes the spillway capacity as 10.7 of the Probable Maximum Flood PMF. The dam will be overtopped by 10.0 feet and 4.8 feet during the PMF and 12 PMF respectively. The spillway is inadequate since failure of the dam during the 12 PMF event will not significantly increase the downstream hazard from that which would occur just prior to the dam failure.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE
