A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
National Dam Inspection Program. Section F Dam (NDS I.D. Number PA 01135, DER I.D. Number 1-86) Potomac River Basin Toms Creek, Adams County Pennsylvania. Phase I Inspection Report
Section F Dam and reservoir are used for recreational purposes. The embankment and dike forming the impoundment are owned by six individuals, with a seventh owning a portion of the reservoir. Visual inspection indicates that the spillway of Section F Dam is in good condition, that the embankment and dike are in poor condition as a result of lack of maintenance, and that a serious threat to the integrity of the dike and the embankment is presented by the adjacent Toms Creek. Therefore, the overall rating of this dam is poor. In accordance with criteria established by Federal (OCE) Guidelines, the recommended spillway design of flood for this 'Small' size dam and 'High' hazard potential classification is one-half to the full Probable Maximum Flood (PMF). Based on the small total capacity of the reservoir and the topography of the area, the one-half PMF has been selected as the spillway design flood. Hydrologic and hydraulic computations presented in Appendix D indicate that the spillway structure is capable of discharging about 0.43 PMF without overtopping. The one-half PMF is estimated to overtop the embankment by about 0.4 foot for less than three hours. It is further assessed that, neglecting the effects of the adjacent Toms Creek, the embankment is not likely to fail during one-half the PMF. Therefore, the structure is considered to have an 'Inadequate' but not 'Seriously Inadequate' spillway classification. (Author)
National Dam Inspection Program. Section F Dam (NDS I.D. Number PA 01135, DER I.D. Number 1-86) Potomac River Basin Toms Creek, Adams County Pennsylvania. Phase I Inspection Report
Section F Dam and reservoir are used for recreational purposes. The embankment and dike forming the impoundment are owned by six individuals, with a seventh owning a portion of the reservoir. Visual inspection indicates that the spillway of Section F Dam is in good condition, that the embankment and dike are in poor condition as a result of lack of maintenance, and that a serious threat to the integrity of the dike and the embankment is presented by the adjacent Toms Creek. Therefore, the overall rating of this dam is poor. In accordance with criteria established by Federal (OCE) Guidelines, the recommended spillway design of flood for this 'Small' size dam and 'High' hazard potential classification is one-half to the full Probable Maximum Flood (PMF). Based on the small total capacity of the reservoir and the topography of the area, the one-half PMF has been selected as the spillway design flood. Hydrologic and hydraulic computations presented in Appendix D indicate that the spillway structure is capable of discharging about 0.43 PMF without overtopping. The one-half PMF is estimated to overtop the embankment by about 0.4 foot for less than three hours. It is further assessed that, neglecting the effects of the adjacent Toms Creek, the embankment is not likely to fail during one-half the PMF. Therefore, the structure is considered to have an 'Inadequate' but not 'Seriously Inadequate' spillway classification. (Author)
National Dam Inspection Program. Section F Dam (NDS I.D. Number PA 01135, DER I.D. Number 1-86) Potomac River Basin Toms Creek, Adams County Pennsylvania. Phase I Inspection Report
1980
95 pages
Report
No indication
English