National Dam Inspection Program. Lake-In-The-Clouds Dam. (NDI ID Number PA-00741) DER ID Number 52-125)Delaware River Basin. Leavitt Branch of Brodhead Creek, Pike County, Pennsylvania. Phase I Inspection Report,
Frederick Futchko
Abstract
Frederick Futchko
Abstract
Based on criteria established for these studies, Lake-In-The-Clouds Dam is judged to be unsafe, nonemergency, because the spillway capacity is seriously inadequate. The recommended Spillway Design Flood (SDF) for the size and hazard classification of the dam varies between 1/2 the Probable Maximum Flood (PMF) and the PMF. Based on the criteria and the downstream conditions, the selected SDF is the PMF. Based on existing conditions, with the embankment above its design elevation, the spillway will pass about 35 percent of the PMF before overtopping of the dam occurs. Failure of the dam would cause the probable overtopping and failure of a high hazard dam that is downstream. As a whole, the dam is judged to be in fair condition. No significant stability problems were observed at the embankment. The ability of the emergency drawdown facility to function is uncertain because it has not been operated recently. Maintenance at the dam is inadequate.
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Based on criteria established for these studies, Lake-In-The-Clouds Dam is judged to be unsafe, nonemergency, because the spillway capacity is seriously inadequate. The recommended Spillway Design Flood (SDF) for the size and hazard classification of the dam varies between 1/2 the Probable Maximum Flood (PMF) and the PMF. Based on the criteria and the downstream conditions, the selected SDF is the PMF. Based on existing conditions, with the embankment above its design elevation, the spillway will pass about 35 percent of the PMF before overtopping of the dam occurs. Failure of the dam would cause the probable overtopping and failure of a high hazard dam that is downstream. As a whole, the dam is judged to be in fair condition. No significant stability problems were observed at the embankment. The ability of the emergency drawdown facility to function is uncertain because it has not been operated recently. Maintenance at the dam is inadequate.
Key concepts: Spillway, Embankment dam, Dam failure, Drawdown (hydrology), Hydrology (agriculture), Levee, Flood myth, Environmental science