National Dam Safety Program. Davis Brook Dam (Site 1) (Inventory Number N.Y. 564), Allegheny River Basin, Conewango Creek Watershed, Cattaraugus County, New York. Phase I Inspection Report,

Abstract

Examination of available documents and visual inspection of Conewango Creek Watershed Davis Brook Dam (Site 1) and appurtenant structures did not reveal conditions which constitute a hazard to human life or property. However, the dam has some deficiences which require further investigation and remedial action. A wet condition of unknown cause was observed on the lower portion of the left downstream slope. It is recommended that the services of a qualified registered professional engineer be retained to evaluate this condition. Using the Corps of Engineers screening criteria for review of spillway adequacy, it has been determined that the dam would not be overtopped under full PMF conditions. The PMF routed through the reservoir required only 46 percent of the spillway outflow capacity. The spillway capacity is therefore judged as adequate. The following remedial measures should be performed within 1 year of notification to owner: develop a formal downstream warning system; develop and maintain a program of periodic technical inspections; implement a program of diligent and periodic maintenance; remove trees and brush from slopes; regrade and fill in the erosion gullies; and install ladder rungs on the riser.

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Document Details

Document Type
Technical Report
Publication Date
Aug 18, 1981
Accession Number
ADA105841

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  • Robert J. Farrell

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  • Human Systems

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  • Agriculture
  • Concrete
  • Construction
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  • Failure Mode And Effect Analysis
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  • New York
  • Plastic Explosives
  • Reinforced Concrete
  • Riprap
  • Visual Inspection
  • Warning Systems

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  • Hydraulic Engineering.
  • Hydrologic Risk Analysis and Mitigation.