Accession Number:

ADA106657

Title:

National Dam Inspection Program. Tillson Lake Dam (NY00083), Lower Hudson River Basin, Town of Gardiner, Ulster County, New York. Phase I Inspection Program.

Descriptive Note:

Corporate Author:

MALE (C T) ASSOCIATES SCHENECTADY NY

Personal Author(s):

Report Date:

1981-08-31

Pagination or Media Count:

148.0

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. Examination of available documents and visual inspection of the dam did not reveal conditions which constitute an immediate hazard to human life or property. However, the dam has some serious deficiencies which require further investigation and remedial work. Hydrologic and hydraulic analysis indicates that maximum spillway discharge capacity without flashboards is only about 39 of the PMF peak outflow. The 12 PMF would overtop the earth embankment and would probably cause failure. Therefore, in accordance with Corps of Engineers screening criteria for review of spillway adequacy, spillway capacity is considered seriously inadequate and the dam is assessed as unsafe, non-emergency.

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE