National Dam Inspection Program. Maggio Estate Dam Number 2 (NDI Number PA01120, PennDER Number 41-103), Susquehanna River Basin, Red Run, Lycoming County, Pennsylvania. Phase I Inspection Report

摘要

Maggio Estate Dam No. 2 is owned by the Estate of Michael Maggio and is classified as a 'Significant' hazard - 'Small' size dam. The dam was found to be in fair overall condition at the time of inspection. Hydraulic/hydrologic evaluates, performed in accordance with procedures established by the Baltimore District Corps of Engineers, for Phase I Inspection Reports, revealed that the spillway capacity is less than the inflow to the impoundment during the 100-year flood. A spillway design flood (SDF) in the range of the 100-year flood to the 1/2 Probable Maximum Flood (1/2 PMF) is required for Maggio Estate Dam No. 2. Because the dam is on the low end of the 'Small' size category in terms of height and storage capacity, the 100-year flood was chosen as the SDF. The spillway is therefore considered 'Inadequate.' It is recommended that the owner develop remedial measures to ensure that the dam will not be overtopped by the 100-year flood. The inspection revealed certain items of remedial work which should be performed by the owner without delay.