National Dam Safety Program. John D. Rockefeller Jr. Dam (Inventory Number N.Y. 665), Lower Hudson River Basin, Westchester County, New York. Phase I Inspection Report,
Abstract
Examination of documents and 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 investigation and remedial action. The earth embankment is considered to be stable under present conditions; however, the configuration and type of the present spillway are considered unacceptable. This presents a potentially hazardous condition under higher than observed flood discharge levels, when water flowing over the unlined channel, which is cut in overburden, at high rates could erode the adjacent earth embankment resulting in the breaching of the dam. It is recommended that within 3 months of notification to the owner, an investigation be conducted to determine the exact dimensions, capacity of and to appraise the stability of the existing spillway. Following this study, an acceptable engineering solution should be developed to correct the spillway safety problem.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 05, 1981
- Accession Number
- ADA105818
Entities
People
- Eugene O'brien