National Dam Inspection Program. Glass Pond Number 2 Dam (NDI ID Number PA-00082, DER ID Number 64-8), Delaware River Basin, Tributary to Lackawaxen River, Wayne County, Pennsylvania. Phase I Inspection Report,

Based on the criteria established for these studies, Glass Pond No. 2 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 of the Probable Maximum Flood (PMF) and the PMF. Based on the size of the dam and reservoir, the 1/2 PMF is selected as the SDF. The existing spillway will pass only about 7 percent of the PMF before overtopping of the dam occurs. It is judged that the dam could not withstand the depth and duration of overtopping that would occur for the 1/2 PMF. Failure of Glass Pond No. 2 Dam would cause an increased hazard for loss of life downstream. Overall, the dam is considered to be in good condition. There are several deficiencies, all of which are considered to be minor. Maintenance of the dam and its appurtenant structures is generally adequate.