National Dam Inspection Report. Breskin Pond Dam Number 1 (NDI Number PA-01141 PennDER Number 65-141). Ohio River Basin. Unnamed Tributary to Fourmile Run, Westmoreland County, Pennsylvania, Phase I Inspection Report.
BAKER (MICHAEL) JR INC BEAVER PA
Pagination or Media Count:
Breskin Pond Dam No. 1 is classified as a Significant hazard - Small size dam. The dam was found to be in fair overall condition at the time of inspection. Hydraulichydrologic evaluations, performed in accordance with procedures established by the Baltimore District, Corps of Engineers, for Phase I Inspection Reports, revealed that the spillway will pass approximately 30 percent of the Probable Maximum Flood PMF before overtopping will occur. A spillway design flood SDF in the range of the 100-year flood to the 12 Probable Maximum Flood 12 PMF is required for Breskin Pond Dam No. 1. The 100-year flood was chosen because the dam is on the low end of the Small size category in terms of storage capacity. The total duration and maximum depth of overtopping during the 100-year flood are 0.6 hours and 0.34 foot, respectively. The spillway is therefore assessed as being Inadequate. It is recommended that the owner, under the guidance of a professional engineer, develop remedial measures to ensure that the dam will not be overtopped by the 100-year flood. The inspection and review of available information revealed certain items of work which should be performed without delay by the owner.
- Hydrology, Limnology and Potamology
- Civil Engineering